./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/blockchain_state/balance_receive_calls.sol_2_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:27:07,651 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:27:07,702 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c7a942-0927-4ad2-a632-c6746e148263/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:27:07,706 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:27:07,706 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:27:07,723 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:27:07,723 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:27:07,724 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:27:07,724 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:27:07,724 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:27:07,724 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:27:07,724 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:27:07,724 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:27:07,724 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:27:07,725 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:27:07,725 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:27:07,725 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:27:07,725 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:27:07,725 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:07,725 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:27:07,725 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:27:07,725 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:27:07,725 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:27:07,725 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:27:07,725 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:27:07,726 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:27:07,726 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:27:07,945 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:27:07,953 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:27:07,955 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:27:07,956 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:27:07,956 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:27:07,957 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c7a942-0927-4ad2-a632-c6746e148263/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/blockchain_state/balance_receive_calls.sol_2_no_adts_000.smt2
[2025-05-07 17:27:07,958 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:27:07,961 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:27:08,298 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40c7a942-0927-4ad2-a632-c6746e148263/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/blockchain_state/balance_receive_calls.sol_2_no_adts_000.smt2
[2025-05-07 17:27:08,301 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:27:08,303 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:27:08,303 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:27:08,303 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:27:08,303 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:27:08,306 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:08" (1/1) ...
[2025-05-07 17:27:08,353 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:08 Unit
[2025-05-07 17:27:08,353 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:27:08,354 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:27:08,354 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:27:08,354 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:27:08,369 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:08" (1/1) ...
[2025-05-07 17:27:08,369 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:08" (1/1) ...
[2025-05-07 17:27:08,394 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:08" (1/1) ...
[2025-05-07 17:27:08,394 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:08" (1/1) ...
[2025-05-07 17:27:08,400 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:08" (1/1) ...
[2025-05-07 17:27:08,401 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:08" (1/1) ...
[2025-05-07 17:27:08,403 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:08" (1/1) ...
[2025-05-07 17:27:08,405 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:08" (1/1) ...
[2025-05-07 17:27:08,406 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:08" (1/1) ...
[2025-05-07 17:27:08,421 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:27:08,422 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:27:08,422 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:27:08,422 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:27:08,422 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:08" (1/1) ...
[2025-05-07 17:27:08,424 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:08,437 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:27:08,446 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2025-05-07 17:27:08,449 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-05-07 17:27:08,456 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:27:08,456 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:27:08,456 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:27:08,456 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_10_0 given in one single declaration
[2025-05-07 17:27:08,456 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_10_0
[2025-05-07 17:27:08,456 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_10_0
[2025-05-07 17:27:08,456 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_97_0 given in one single declaration
[2025-05-07 17:27:08,457 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_97_0
[2025-05-07 17:27:08,457 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_97_0
[2025-05-07 17:27:08,457 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_97_0 given in one single declaration
[2025-05-07 17:27:08,457 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_97_0
[2025-05-07 17:27:08,457 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_97_0
[2025-05-07 17:27:08,457 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_28_C_97_0 given in one single declaration
[2025-05-07 17:27:08,457 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_28_C_97_0
[2025-05-07 17:27:08,457 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_28_C_97_0
[2025-05-07 17:27:08,457 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_25_C_97_0 given in one single declaration
[2025-05-07 17:27:08,458 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_25_C_97_0
[2025-05-07 17:27:08,458 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_25_C_97_0
[2025-05-07 17:27:08,458 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_27_C_97_0 given in one single declaration
[2025-05-07 17:27:08,458 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_27_C_97_0
[2025-05-07 17:27:08,458 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_27_C_97_0
[2025-05-07 17:27:08,458 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_26_C_97_0 given in one single declaration
[2025-05-07 17:27:08,458 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_26_C_97_0
[2025-05-07 17:27:08,458 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_26_C_97_0
[2025-05-07 17:27:08,458 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__45_97_0 given in one single declaration
[2025-05-07 17:27:08,458 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__45_97_0
[2025-05-07 17:27:08,459 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__45_97_0
[2025-05-07 17:27:08,459 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_function_f__45_97_0 given in one single declaration
[2025-05-07 17:27:08,459 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_function_f__45_97_0
[2025-05-07 17:27:08,459 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_function_f__45_97_0
[2025-05-07 17:27:08,459 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__45_97_0 given in one single declaration
[2025-05-07 17:27:08,459 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__45_97_0
[2025-05-07 17:27:08,459 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__45_97_0
[2025-05-07 17:27:08,459 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_function_f__45_97_0 given in one single declaration
[2025-05-07 17:27:08,459 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_function_f__45_97_0
[2025-05-07 17:27:08,459 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_function_f__45_97_0
[2025-05-07 17:27:08,460 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_return_function_f__45_97_0 given in one single declaration
[2025-05-07 17:27:08,460 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_return_function_f__45_97_0
[2025-05-07 17:27:08,460 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_return_function_f__45_97_0
[2025-05-07 17:27:08,460 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_f__45_97_0 given in one single declaration
[2025-05-07 17:27:08,460 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_f__45_97_0
[2025-05-07 17:27:08,460 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_f__45_97_0
[2025-05-07 17:27:08,460 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_12_function_g__72_97_0 given in one single declaration
[2025-05-07 17:27:08,460 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_12_function_g__72_97_0
[2025-05-07 17:27:08,460 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_12_function_g__72_97_0
[2025-05-07 17:27:08,460 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_5_function_g__72_97_0 given in one single declaration
[2025-05-07 17:27:08,460 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_5_function_g__72_97_0
[2025-05-07 17:27:08,460 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_5_function_g__72_97_0
[2025-05-07 17:27:08,460 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_17_function_g__72_97_0 given in one single declaration
[2025-05-07 17:27:08,460 INFO  L130     BoogieDeclarations]: Found specification of procedure block_17_function_g__72_97_0
[2025-05-07 17:27:08,460 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_17_function_g__72_97_0
[2025-05-07 17:27:08,460 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_16_return_function_g__72_97_0 given in one single declaration
[2025-05-07 17:27:08,460 INFO  L130     BoogieDeclarations]: Found specification of procedure block_16_return_function_g__72_97_0
[2025-05-07 17:27:08,460 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_16_return_function_g__72_97_0
[2025-05-07 17:27:08,460 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_15_g_71_97_0 given in one single declaration
[2025-05-07 17:27:08,460 INFO  L130     BoogieDeclarations]: Found specification of procedure block_15_g_71_97_0
[2025-05-07 17:27:08,460 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_15_g_71_97_0
[2025-05-07 17:27:08,461 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_function_g__72_97_0 given in one single declaration
[2025-05-07 17:27:08,461 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_function_g__72_97_0
[2025-05-07 17:27:08,461 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_function_g__72_97_0
[2025-05-07 17:27:08,461 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_19_function_h__96_97_0 given in one single declaration
[2025-05-07 17:27:08,461 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_19_function_h__96_97_0
[2025-05-07 17:27:08,461 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_19_function_h__96_97_0
[2025-05-07 17:27:08,461 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_6_function_h__96_97_0 given in one single declaration
[2025-05-07 17:27:08,461 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_6_function_h__96_97_0
[2025-05-07 17:27:08,461 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_6_function_h__96_97_0
[2025-05-07 17:27:08,461 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_22_return_function_h__96_97_0 given in one single declaration
[2025-05-07 17:27:08,461 INFO  L130     BoogieDeclarations]: Found specification of procedure block_22_return_function_h__96_97_0
[2025-05-07 17:27:08,461 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_22_return_function_h__96_97_0
[2025-05-07 17:27:08,461 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_21_h_95_97_0 given in one single declaration
[2025-05-07 17:27:08,461 INFO  L130     BoogieDeclarations]: Found specification of procedure block_21_h_95_97_0
[2025-05-07 17:27:08,461 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_21_h_95_97_0
[2025-05-07 17:27:08,461 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_20_function_h__96_97_0 given in one single declaration
[2025-05-07 17:27:08,462 INFO  L130     BoogieDeclarations]: Found specification of procedure block_20_function_h__96_97_0
[2025-05-07 17:27:08,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_20_function_h__96_97_0
[2025-05-07 17:27:08,462 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_24_function_h__96_97_0 given in one single declaration
[2025-05-07 17:27:08,462 INFO  L130     BoogieDeclarations]: Found specification of procedure block_24_function_h__96_97_0
[2025-05-07 17:27:08,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_24_function_h__96_97_0
[2025-05-07 17:27:08,462 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_23_function_h__96_97_0 given in one single declaration
[2025-05-07 17:27:08,462 INFO  L130     BoogieDeclarations]: Found specification of procedure block_23_function_h__96_97_0
[2025-05-07 17:27:08,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_23_function_h__96_97_0
[2025-05-07 17:27:08,462 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_18_function_g__72_97_0 given in one single declaration
[2025-05-07 17:27:08,462 INFO  L130     BoogieDeclarations]: Found specification of procedure block_18_function_g__72_97_0
[2025-05-07 17:27:08,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_18_function_g__72_97_0
[2025-05-07 17:27:08,462 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_f_44_97_0 given in one single declaration
[2025-05-07 17:27:08,462 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_f_44_97_0
[2025-05-07 17:27:08,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_f_44_97_0
[2025-05-07 17:27:08,462 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_function_f__45_97_0 given in one single declaration
[2025-05-07 17:27:08,462 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_function_f__45_97_0
[2025-05-07 17:27:08,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_function_f__45_97_0
[2025-05-07 17:27:08,462 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:27:08,462 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:27:08,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:27:08,636 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:27:08,637 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:27:08,863 INFO  L?                        ?]: Removed 296 outVars from TransFormulas that were not future-live.
[2025-05-07 17:27:08,863 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:27:08,871 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:27:08,871 INFO  L312             CfgBuilder]: Removed 18 assume(true) statements.
[2025-05-07 17:27:08,872 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:08 BoogieIcfgContainer
[2025-05-07 17:27:08,872 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:27:08,873 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:27:08,873 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:27:08,876 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:27:08,876 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:08" (1/3) ...
[2025-05-07 17:27:08,876 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e9d403d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:27:08, skipping insertion in model container
[2025-05-07 17:27:08,876 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:08" (2/3) ...
[2025-05-07 17:27:08,876 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e9d403d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:27:08, skipping insertion in model container
[2025-05-07 17:27:08,877 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:08" (3/3) ...
[2025-05-07 17:27:08,878 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:27:08,888 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:27:08,890 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 31 procedures, 120 locations, 187 edges, 31 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:27:08,920 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:27:08,929 INFO  L340      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@fec18a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:27:08,929 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:27:08,932 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 120 states, 52 states have (on average 1.0576923076923077) internal successors, (55), 55 states have internal predecessors, (55), 38 states have call successors, (44), 30 states have call predecessors, (44), 30 states have return successors, (44), 34 states have call predecessors, (44), 38 states have call successors, (44)
[2025-05-07 17:27:08,940 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:27:08,940 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:08,940 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:08,940 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:08,944 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:08,944 INFO  L85        PathProgramCache]: Analyzing trace with hash -552093005, now seen corresponding path program 1 times
[2025-05-07 17:27:08,950 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:08,950 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113104993]
[2025-05-07 17:27:08,950 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:08,951 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:08,988 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:27:09,048 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:27:09,048 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:09,048 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:09,217 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:09,217 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:09,217 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113104993]
[2025-05-07 17:27:09,218 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113104993] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:09,218 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:09,220 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:27:09,221 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746224098]
[2025-05-07 17:27:09,221 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:09,224 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:27:09,224 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:09,265 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:27:09,266 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:09,268 INFO  L87              Difference]: Start difference. First operand  has 120 states, 52 states have (on average 1.0576923076923077) internal successors, (55), 55 states have internal predecessors, (55), 38 states have call successors, (44), 30 states have call predecessors, (44), 30 states have return successors, (44), 34 states have call predecessors, (44), 38 states have call successors, (44) Second operand  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:27:09,354 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:09,355 INFO  L93              Difference]: Finished difference Result 123 states and 147 transitions.
[2025-05-07 17:27:09,356 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:27:09,358 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 51
[2025-05-07 17:27:09,358 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:09,365 INFO  L225             Difference]: With dead ends: 123
[2025-05-07 17:27:09,365 INFO  L226             Difference]: Without dead ends: 123
[2025-05-07 17:27:09,366 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:09,369 INFO  L437           NwaCegarLoop]: 144 mSDtfsCounter, 1 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:09,370 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 705 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:09,381 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 123 states.
[2025-05-07 17:27:09,400 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123.
[2025-05-07 17:27:09,401 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 123 states, 53 states have (on average 1.0377358490566038) internal successors, (55), 55 states have internal predecessors, (55), 39 states have call successors, (45), 30 states have call predecessors, (45), 32 states have return successors, (47), 37 states have call predecessors, (47), 39 states have call successors, (47)
[2025-05-07 17:27:09,405 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 147 transitions.
[2025-05-07 17:27:09,405 INFO  L79                 Accepts]: Start accepts. Automaton has 123 states and 147 transitions. Word has length 51
[2025-05-07 17:27:09,406 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:09,406 INFO  L485      AbstractCegarLoop]: Abstraction has 123 states and 147 transitions.
[2025-05-07 17:27:09,406 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:27:09,406 INFO  L278                IsEmpty]: Start isEmpty. Operand 123 states and 147 transitions.
[2025-05-07 17:27:09,408 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:27:09,408 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:09,408 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:09,408 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:27:09,408 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:09,409 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:09,409 INFO  L85        PathProgramCache]: Analyzing trace with hash 69179965, now seen corresponding path program 1 times
[2025-05-07 17:27:09,409 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:09,409 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56702875]
[2025-05-07 17:27:09,409 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:09,409 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:09,434 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:27:09,451 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:27:09,451 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:09,451 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:09,544 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:09,545 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:09,545 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56702875]
[2025-05-07 17:27:09,545 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56702875] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:09,545 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:09,545 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:27:09,545 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449477599]
[2025-05-07 17:27:09,545 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:09,546 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:27:09,546 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:09,546 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:27:09,546 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:09,546 INFO  L87              Difference]: Start difference. First operand 123 states and 147 transitions. Second operand  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:27:09,588 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:09,588 INFO  L93              Difference]: Finished difference Result 128 states and 153 transitions.
[2025-05-07 17:27:09,589 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:27:09,589 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 51
[2025-05-07 17:27:09,589 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:09,591 INFO  L225             Difference]: With dead ends: 128
[2025-05-07 17:27:09,591 INFO  L226             Difference]: Without dead ends: 128
[2025-05-07 17:27:09,591 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:09,592 INFO  L437           NwaCegarLoop]: 144 mSDtfsCounter, 1 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:09,592 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 705 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:09,593 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 128 states.
[2025-05-07 17:27:09,603 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 123.
[2025-05-07 17:27:09,603 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 123 states, 53 states have (on average 1.0377358490566038) internal successors, (55), 55 states have internal predecessors, (55), 39 states have call successors, (45), 30 states have call predecessors, (45), 32 states have return successors, (47), 37 states have call predecessors, (47), 39 states have call successors, (47)
[2025-05-07 17:27:09,605 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 147 transitions.
[2025-05-07 17:27:09,605 INFO  L79                 Accepts]: Start accepts. Automaton has 123 states and 147 transitions. Word has length 51
[2025-05-07 17:27:09,605 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:09,605 INFO  L485      AbstractCegarLoop]: Abstraction has 123 states and 147 transitions.
[2025-05-07 17:27:09,605 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:27:09,606 INFO  L278                IsEmpty]: Start isEmpty. Operand 123 states and 147 transitions.
[2025-05-07 17:27:09,608 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2025-05-07 17:27:09,608 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:09,608 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:09,608 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:27:09,608 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:09,609 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:09,609 INFO  L85        PathProgramCache]: Analyzing trace with hash -629477072, now seen corresponding path program 1 times
[2025-05-07 17:27:09,609 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:09,609 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297539528]
[2025-05-07 17:27:09,609 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:09,609 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:09,641 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes.
[2025-05-07 17:27:09,664 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements.
[2025-05-07 17:27:09,664 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:09,664 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:10,655 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:10,656 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:10,656 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297539528]
[2025-05-07 17:27:10,656 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297539528] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:10,656 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:10,656 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2025-05-07 17:27:10,656 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129146236]
[2025-05-07 17:27:10,656 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:10,657 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2025-05-07 17:27:10,657 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:10,657 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2025-05-07 17:27:10,658 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420
[2025-05-07 17:27:10,658 INFO  L87              Difference]: Start difference. First operand 123 states and 147 transitions. Second operand  has 21 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 17 states have internal predecessors, (29), 10 states have call successors, (18), 1 states have call predecessors, (18), 14 states have return successors, (18), 16 states have call predecessors, (18), 10 states have call successors, (18)
[2025-05-07 17:27:11,139 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:11,139 INFO  L93              Difference]: Finished difference Result 143 states and 174 transitions.
[2025-05-07 17:27:11,139 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. 
[2025-05-07 17:27:11,140 INFO  L79                 Accepts]: Start accepts. Automaton has  has 21 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 17 states have internal predecessors, (29), 10 states have call successors, (18), 1 states have call predecessors, (18), 14 states have return successors, (18), 16 states have call predecessors, (18), 10 states have call successors, (18) Word has length 65
[2025-05-07 17:27:11,140 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:11,141 INFO  L225             Difference]: With dead ends: 143
[2025-05-07 17:27:11,141 INFO  L226             Difference]: Without dead ends: 143
[2025-05-07 17:27:11,142 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600
[2025-05-07 17:27:11,142 INFO  L437           NwaCegarLoop]: 131 mSDtfsCounter, 8 mSDsluCounter, 2302 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:11,142 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2433 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2025-05-07 17:27:11,143 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 143 states.
[2025-05-07 17:27:11,151 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 137.
[2025-05-07 17:27:11,151 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 137 states, 59 states have (on average 1.0338983050847457) internal successors, (61), 61 states have internal predecessors, (61), 41 states have call successors, (47), 30 states have call predecessors, (47), 38 states have return successors, (58), 45 states have call predecessors, (58), 41 states have call successors, (58)
[2025-05-07 17:27:11,152 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 166 transitions.
[2025-05-07 17:27:11,152 INFO  L79                 Accepts]: Start accepts. Automaton has 137 states and 166 transitions. Word has length 65
[2025-05-07 17:27:11,153 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:11,153 INFO  L485      AbstractCegarLoop]: Abstraction has 137 states and 166 transitions.
[2025-05-07 17:27:11,153 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 21 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 17 states have internal predecessors, (29), 10 states have call successors, (18), 1 states have call predecessors, (18), 14 states have return successors, (18), 16 states have call predecessors, (18), 10 states have call successors, (18)
[2025-05-07 17:27:11,153 INFO  L278                IsEmpty]: Start isEmpty. Operand 137 states and 166 transitions.
[2025-05-07 17:27:11,154 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2025-05-07 17:27:11,154 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:11,155 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:11,155 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:27:11,155 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:11,155 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:11,155 INFO  L85        PathProgramCache]: Analyzing trace with hash -715500742, now seen corresponding path program 1 times
[2025-05-07 17:27:11,155 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:11,155 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084352290]
[2025-05-07 17:27:11,155 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:11,155 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:11,183 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes.
[2025-05-07 17:27:11,194 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements.
[2025-05-07 17:27:11,194 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:11,194 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:11,330 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:11,330 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:11,330 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084352290]
[2025-05-07 17:27:11,330 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084352290] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:11,330 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:11,330 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:27:11,330 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907652813]
[2025-05-07 17:27:11,330 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:11,331 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:27:11,331 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:11,331 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:27:11,331 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:27:11,332 INFO  L87              Difference]: Start difference. First operand 137 states and 166 transitions. Second operand  has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 8 states have internal predecessors, (29), 5 states have call successors, (18), 1 states have call predecessors, (18), 7 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18)
[2025-05-07 17:27:11,390 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:11,390 INFO  L93              Difference]: Finished difference Result 146 states and 177 transitions.
[2025-05-07 17:27:11,390 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:27:11,390 INFO  L79                 Accepts]: Start accepts. Automaton has  has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 8 states have internal predecessors, (29), 5 states have call successors, (18), 1 states have call predecessors, (18), 7 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18) Word has length 65
[2025-05-07 17:27:11,391 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:11,392 INFO  L225             Difference]: With dead ends: 146
[2025-05-07 17:27:11,392 INFO  L226             Difference]: Without dead ends: 146
[2025-05-07 17:27:11,393 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:27:11,393 INFO  L437           NwaCegarLoop]: 138 mSDtfsCounter, 1 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:11,393 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 951 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:11,394 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 146 states.
[2025-05-07 17:27:11,406 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 141.
[2025-05-07 17:27:11,406 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 141 states, 61 states have (on average 1.0327868852459017) internal successors, (63), 63 states have internal predecessors, (63), 41 states have call successors, (47), 30 states have call predecessors, (47), 40 states have return successors, (61), 47 states have call predecessors, (61), 41 states have call successors, (61)
[2025-05-07 17:27:11,407 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 171 transitions.
[2025-05-07 17:27:11,408 INFO  L79                 Accepts]: Start accepts. Automaton has 141 states and 171 transitions. Word has length 65
[2025-05-07 17:27:11,408 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:11,408 INFO  L485      AbstractCegarLoop]: Abstraction has 141 states and 171 transitions.
[2025-05-07 17:27:11,408 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 8 states have internal predecessors, (29), 5 states have call successors, (18), 1 states have call predecessors, (18), 7 states have return successors, (18), 7 states have call predecessors, (18), 5 states have call successors, (18)
[2025-05-07 17:27:11,408 INFO  L278                IsEmpty]: Start isEmpty. Operand 141 states and 171 transitions.
[2025-05-07 17:27:11,410 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2025-05-07 17:27:11,410 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:11,410 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:11,410 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-05-07 17:27:11,410 INFO  L403      AbstractCegarLoop]: === Iteration 5 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:11,410 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:11,411 INFO  L85        PathProgramCache]: Analyzing trace with hash -395015751, now seen corresponding path program 1 times
[2025-05-07 17:27:11,411 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:11,411 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038875638]
[2025-05-07 17:27:11,411 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:11,411 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:11,433 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes.
[2025-05-07 17:27:11,442 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements.
[2025-05-07 17:27:11,442 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:11,442 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:11,510 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:11,510 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:11,510 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038875638]
[2025-05-07 17:27:11,510 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038875638] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:11,510 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:11,510 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:27:11,510 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001956088]
[2025-05-07 17:27:11,510 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:11,511 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:27:11,511 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:11,511 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:27:11,511 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:11,511 INFO  L87              Difference]: Start difference. First operand 141 states and 171 transitions. Second operand  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19)
[2025-05-07 17:27:11,541 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:11,541 INFO  L93              Difference]: Finished difference Result 146 states and 177 transitions.
[2025-05-07 17:27:11,542 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:27:11,542 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 68
[2025-05-07 17:27:11,542 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:11,543 INFO  L225             Difference]: With dead ends: 146
[2025-05-07 17:27:11,543 INFO  L226             Difference]: Without dead ends: 146
[2025-05-07 17:27:11,543 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:11,544 INFO  L437           NwaCegarLoop]: 144 mSDtfsCounter, 1 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:11,544 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 704 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:11,544 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 146 states.
[2025-05-07 17:27:11,550 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 141.
[2025-05-07 17:27:11,550 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 141 states, 61 states have (on average 1.0327868852459017) internal successors, (63), 63 states have internal predecessors, (63), 41 states have call successors, (47), 30 states have call predecessors, (47), 40 states have return successors, (61), 47 states have call predecessors, (61), 41 states have call successors, (61)
[2025-05-07 17:27:11,551 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 171 transitions.
[2025-05-07 17:27:11,551 INFO  L79                 Accepts]: Start accepts. Automaton has 141 states and 171 transitions. Word has length 68
[2025-05-07 17:27:11,551 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:11,551 INFO  L485      AbstractCegarLoop]: Abstraction has 141 states and 171 transitions.
[2025-05-07 17:27:11,551 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19)
[2025-05-07 17:27:11,551 INFO  L278                IsEmpty]: Start isEmpty. Operand 141 states and 171 transitions.
[2025-05-07 17:27:11,552 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 83
[2025-05-07 17:27:11,552 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:11,552 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:11,552 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-05-07 17:27:11,552 INFO  L403      AbstractCegarLoop]: === Iteration 6 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:11,552 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:11,553 INFO  L85        PathProgramCache]: Analyzing trace with hash 1096330638, now seen corresponding path program 1 times
[2025-05-07 17:27:11,553 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:11,553 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619326680]
[2025-05-07 17:27:11,553 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:11,553 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:11,582 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes.
[2025-05-07 17:27:11,594 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements.
[2025-05-07 17:27:11,594 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:11,594 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:11,672 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:11,672 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:11,672 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619326680]
[2025-05-07 17:27:11,672 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619326680] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:11,672 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:11,672 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:27:11,672 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351089972]
[2025-05-07 17:27:11,672 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:11,673 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:27:11,673 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:11,673 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:27:11,673 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:11,673 INFO  L87              Difference]: Start difference. First operand 141 states and 171 transitions. Second operand  has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (23), 1 states have call predecessors, (23), 5 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23)
[2025-05-07 17:27:11,715 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:11,716 INFO  L93              Difference]: Finished difference Result 147 states and 177 transitions.
[2025-05-07 17:27:11,716 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:27:11,716 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (23), 1 states have call predecessors, (23), 5 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) Word has length 82
[2025-05-07 17:27:11,716 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:11,717 INFO  L225             Difference]: With dead ends: 147
[2025-05-07 17:27:11,717 INFO  L226             Difference]: Without dead ends: 147
[2025-05-07 17:27:11,717 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:11,718 INFO  L437           NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:11,718 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 690 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:11,718 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 147 states.
[2025-05-07 17:27:11,723 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145.
[2025-05-07 17:27:11,723 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 145 states, 63 states have (on average 1.0317460317460319) internal successors, (65), 65 states have internal predecessors, (65), 41 states have call successors, (47), 30 states have call predecessors, (47), 42 states have return successors, (63), 49 states have call predecessors, (63), 41 states have call successors, (63)
[2025-05-07 17:27:11,724 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 175 transitions.
[2025-05-07 17:27:11,724 INFO  L79                 Accepts]: Start accepts. Automaton has 145 states and 175 transitions. Word has length 82
[2025-05-07 17:27:11,724 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:11,724 INFO  L485      AbstractCegarLoop]: Abstraction has 145 states and 175 transitions.
[2025-05-07 17:27:11,724 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (23), 1 states have call predecessors, (23), 5 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23)
[2025-05-07 17:27:11,724 INFO  L278                IsEmpty]: Start isEmpty. Operand 145 states and 175 transitions.
[2025-05-07 17:27:11,725 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2025-05-07 17:27:11,725 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:11,725 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:11,725 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-05-07 17:27:11,725 INFO  L403      AbstractCegarLoop]: === Iteration 7 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:11,726 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:11,726 INFO  L85        PathProgramCache]: Analyzing trace with hash -937132859, now seen corresponding path program 1 times
[2025-05-07 17:27:11,726 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:11,726 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783728021]
[2025-05-07 17:27:11,726 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:11,726 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:11,754 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes.
[2025-05-07 17:27:11,771 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements.
[2025-05-07 17:27:11,771 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:11,771 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:11,905 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:11,905 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:11,905 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783728021]
[2025-05-07 17:27:11,905 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783728021] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:11,905 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:11,905 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2025-05-07 17:27:11,906 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220902814]
[2025-05-07 17:27:11,906 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:11,906 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2025-05-07 17:27:11,906 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:11,906 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2025-05-07 17:27:11,907 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2025-05-07 17:27:11,907 INFO  L87              Difference]: Start difference. First operand 145 states and 175 transitions. Second operand  has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 10 states have internal predecessors, (35), 6 states have call successors, (22), 1 states have call predecessors, (22), 9 states have return successors, (22), 9 states have call predecessors, (22), 6 states have call successors, (22)
[2025-05-07 17:27:12,003 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:12,003 INFO  L93              Difference]: Finished difference Result 159 states and 193 transitions.
[2025-05-07 17:27:12,003 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2025-05-07 17:27:12,003 INFO  L79                 Accepts]: Start accepts. Automaton has  has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 10 states have internal predecessors, (35), 6 states have call successors, (22), 1 states have call predecessors, (22), 9 states have return successors, (22), 9 states have call predecessors, (22), 6 states have call successors, (22) Word has length 79
[2025-05-07 17:27:12,004 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:12,005 INFO  L225             Difference]: With dead ends: 159
[2025-05-07 17:27:12,005 INFO  L226             Difference]: Without dead ends: 159
[2025-05-07 17:27:12,005 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2025-05-07 17:27:12,006 INFO  L437           NwaCegarLoop]: 148 mSDtfsCounter, 1 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:12,006 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1306 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:27:12,007 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 159 states.
[2025-05-07 17:27:12,015 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 150.
[2025-05-07 17:27:12,015 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 150 states, 65 states have (on average 1.0307692307692307) internal successors, (67), 67 states have internal predecessors, (67), 42 states have call successors, (48), 30 states have call predecessors, (48), 44 states have return successors, (67), 52 states have call predecessors, (67), 42 states have call successors, (67)
[2025-05-07 17:27:12,016 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 182 transitions.
[2025-05-07 17:27:12,016 INFO  L79                 Accepts]: Start accepts. Automaton has 150 states and 182 transitions. Word has length 79
[2025-05-07 17:27:12,017 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:12,017 INFO  L485      AbstractCegarLoop]: Abstraction has 150 states and 182 transitions.
[2025-05-07 17:27:12,017 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 10 states have internal predecessors, (35), 6 states have call successors, (22), 1 states have call predecessors, (22), 9 states have return successors, (22), 9 states have call predecessors, (22), 6 states have call successors, (22)
[2025-05-07 17:27:12,017 INFO  L278                IsEmpty]: Start isEmpty. Operand 150 states and 182 transitions.
[2025-05-07 17:27:12,018 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2025-05-07 17:27:12,018 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:12,018 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:12,018 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2025-05-07 17:27:12,019 INFO  L403      AbstractCegarLoop]: === Iteration 8 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:12,019 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:12,019 INFO  L85        PathProgramCache]: Analyzing trace with hash 1168906331, now seen corresponding path program 1 times
[2025-05-07 17:27:12,019 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:12,019 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061176292]
[2025-05-07 17:27:12,019 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:12,019 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:12,052 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes.
[2025-05-07 17:27:12,067 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements.
[2025-05-07 17:27:12,067 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:12,067 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:12,216 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:12,216 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:12,217 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061176292]
[2025-05-07 17:27:12,217 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061176292] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:12,217 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:12,217 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:27:12,217 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126234952]
[2025-05-07 17:27:12,217 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:12,217 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:27:12,217 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:12,218 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:27:12,218 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:27:12,218 INFO  L87              Difference]: Start difference. First operand 150 states and 182 transitions. Second operand  has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 8 states have internal predecessors, (35), 5 states have call successors, (22), 1 states have call predecessors, (22), 6 states have return successors, (22), 6 states have call predecessors, (22), 5 states have call successors, (22)
[2025-05-07 17:27:12,290 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:12,290 INFO  L93              Difference]: Finished difference Result 156 states and 188 transitions.
[2025-05-07 17:27:12,291 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:27:12,291 INFO  L79                 Accepts]: Start accepts. Automaton has  has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 8 states have internal predecessors, (35), 5 states have call successors, (22), 1 states have call predecessors, (22), 6 states have return successors, (22), 6 states have call predecessors, (22), 5 states have call successors, (22) Word has length 79
[2025-05-07 17:27:12,291 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:12,292 INFO  L225             Difference]: With dead ends: 156
[2025-05-07 17:27:12,292 INFO  L226             Difference]: Without dead ends: 156
[2025-05-07 17:27:12,292 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2025-05-07 17:27:12,293 INFO  L437           NwaCegarLoop]: 140 mSDtfsCounter, 2 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:12,293 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 958 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:27:12,294 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 156 states.
[2025-05-07 17:27:12,301 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 154.
[2025-05-07 17:27:12,302 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 154 states, 67 states have (on average 1.0298507462686568) internal successors, (69), 69 states have internal predecessors, (69), 42 states have call successors, (48), 30 states have call predecessors, (48), 46 states have return successors, (69), 54 states have call predecessors, (69), 42 states have call successors, (69)
[2025-05-07 17:27:12,303 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 186 transitions.
[2025-05-07 17:27:12,303 INFO  L79                 Accepts]: Start accepts. Automaton has 154 states and 186 transitions. Word has length 79
[2025-05-07 17:27:12,303 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:12,303 INFO  L485      AbstractCegarLoop]: Abstraction has 154 states and 186 transitions.
[2025-05-07 17:27:12,304 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 8 states have internal predecessors, (35), 5 states have call successors, (22), 1 states have call predecessors, (22), 6 states have return successors, (22), 6 states have call predecessors, (22), 5 states have call successors, (22)
[2025-05-07 17:27:12,304 INFO  L278                IsEmpty]: Start isEmpty. Operand 154 states and 186 transitions.
[2025-05-07 17:27:12,305 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2025-05-07 17:27:12,305 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:12,305 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:12,305 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2025-05-07 17:27:12,305 INFO  L403      AbstractCegarLoop]: === Iteration 9 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:12,306 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:12,306 INFO  L85        PathProgramCache]: Analyzing trace with hash -983411239, now seen corresponding path program 1 times
[2025-05-07 17:27:12,306 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:12,306 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210195683]
[2025-05-07 17:27:12,306 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:12,306 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:12,336 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes.
[2025-05-07 17:27:12,351 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements.
[2025-05-07 17:27:12,351 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:12,351 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:12,482 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:12,482 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:12,482 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210195683]
[2025-05-07 17:27:12,482 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210195683] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:12,482 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:12,482 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2025-05-07 17:27:12,482 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972837724]
[2025-05-07 17:27:12,483 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:12,483 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2025-05-07 17:27:12,483 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:12,483 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2025-05-07 17:27:12,484 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2025-05-07 17:27:12,484 INFO  L87              Difference]: Start difference. First operand 154 states and 186 transitions. Second operand  has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 10 states have internal predecessors, (35), 6 states have call successors, (22), 1 states have call predecessors, (22), 9 states have return successors, (22), 9 states have call predecessors, (22), 6 states have call successors, (22)
[2025-05-07 17:27:12,577 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:12,577 INFO  L93              Difference]: Finished difference Result 153 states and 182 transitions.
[2025-05-07 17:27:12,577 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2025-05-07 17:27:12,577 INFO  L79                 Accepts]: Start accepts. Automaton has  has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 10 states have internal predecessors, (35), 6 states have call successors, (22), 1 states have call predecessors, (22), 9 states have return successors, (22), 9 states have call predecessors, (22), 6 states have call successors, (22) Word has length 79
[2025-05-07 17:27:12,578 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:12,578 INFO  L225             Difference]: With dead ends: 153
[2025-05-07 17:27:12,578 INFO  L226             Difference]: Without dead ends: 153
[2025-05-07 17:27:12,578 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2025-05-07 17:27:12,579 INFO  L437           NwaCegarLoop]: 142 mSDtfsCounter, 1 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1256 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:12,579 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1256 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:27:12,579 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 153 states.
[2025-05-07 17:27:12,582 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 139.
[2025-05-07 17:27:12,583 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 139 states, 61 states have (on average 1.0327868852459017) internal successors, (63), 63 states have internal predecessors, (63), 39 states have call successors, (45), 30 states have call predecessors, (45), 40 states have return successors, (56), 45 states have call predecessors, (56), 39 states have call successors, (56)
[2025-05-07 17:27:12,583 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 164 transitions.
[2025-05-07 17:27:12,584 INFO  L79                 Accepts]: Start accepts. Automaton has 139 states and 164 transitions. Word has length 79
[2025-05-07 17:27:12,584 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:12,584 INFO  L485      AbstractCegarLoop]: Abstraction has 139 states and 164 transitions.
[2025-05-07 17:27:12,584 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 10 states have internal predecessors, (35), 6 states have call successors, (22), 1 states have call predecessors, (22), 9 states have return successors, (22), 9 states have call predecessors, (22), 6 states have call successors, (22)
[2025-05-07 17:27:12,584 INFO  L278                IsEmpty]: Start isEmpty. Operand 139 states and 164 transitions.
[2025-05-07 17:27:12,585 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 105
[2025-05-07 17:27:12,585 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:12,585 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:12,585 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2025-05-07 17:27:12,585 INFO  L403      AbstractCegarLoop]: === Iteration 10 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:12,585 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:12,585 INFO  L85        PathProgramCache]: Analyzing trace with hash 1590810842, now seen corresponding path program 1 times
[2025-05-07 17:27:12,585 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:12,585 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547002180]
[2025-05-07 17:27:12,585 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:12,585 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:12,622 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes.
[2025-05-07 17:27:12,641 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements.
[2025-05-07 17:27:12,641 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:12,641 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:12,756 INFO  L134       CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2025-05-07 17:27:12,756 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:12,756 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547002180]
[2025-05-07 17:27:12,756 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547002180] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:12,756 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:12,756 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-05-07 17:27:12,756 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612545548]
[2025-05-07 17:27:12,756 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:12,756 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-05-07 17:27:12,756 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:12,757 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-05-07 17:27:12,757 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-05-07 17:27:12,757 INFO  L87              Difference]: Start difference. First operand 139 states and 164 transitions. Second operand  has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 5 states have call successors, (23), 1 states have call predecessors, (23), 4 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24)
[2025-05-07 17:27:12,776 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:12,776 INFO  L93              Difference]: Finished difference Result 144 states and 168 transitions.
[2025-05-07 17:27:12,776 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-05-07 17:27:12,777 INFO  L79                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 5 states have call successors, (23), 1 states have call predecessors, (23), 4 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) Word has length 104
[2025-05-07 17:27:12,777 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:12,777 INFO  L225             Difference]: With dead ends: 144
[2025-05-07 17:27:12,777 INFO  L226             Difference]: Without dead ends: 139
[2025-05-07 17:27:12,778 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-05-07 17:27:12,778 INFO  L437           NwaCegarLoop]: 139 mSDtfsCounter, 1 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:12,778 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 545 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:12,779 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 139 states.
[2025-05-07 17:27:12,782 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 135.
[2025-05-07 17:27:12,782 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 135 states, 59 states have (on average 1.0338983050847457) internal successors, (61), 61 states have internal predecessors, (61), 39 states have call successors, (45), 30 states have call predecessors, (45), 38 states have return successors, (52), 43 states have call predecessors, (52), 39 states have call successors, (52)
[2025-05-07 17:27:12,783 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 158 transitions.
[2025-05-07 17:27:12,783 INFO  L79                 Accepts]: Start accepts. Automaton has 135 states and 158 transitions. Word has length 104
[2025-05-07 17:27:12,783 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:12,783 INFO  L485      AbstractCegarLoop]: Abstraction has 135 states and 158 transitions.
[2025-05-07 17:27:12,783 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 5 states have call successors, (23), 1 states have call predecessors, (23), 4 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24)
[2025-05-07 17:27:12,783 INFO  L278                IsEmpty]: Start isEmpty. Operand 135 states and 158 transitions.
[2025-05-07 17:27:12,784 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 91
[2025-05-07 17:27:12,784 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:12,784 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:12,784 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2025-05-07 17:27:12,784 INFO  L403      AbstractCegarLoop]: === Iteration 11 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:12,784 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:12,784 INFO  L85        PathProgramCache]: Analyzing trace with hash -1718512921, now seen corresponding path program 1 times
[2025-05-07 17:27:12,785 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:12,785 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576814904]
[2025-05-07 17:27:12,785 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:12,785 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:12,812 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes.
[2025-05-07 17:27:12,820 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements.
[2025-05-07 17:27:12,821 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:12,821 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:12,934 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2025-05-07 17:27:12,934 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:12,934 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576814904]
[2025-05-07 17:27:12,934 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576814904] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:12,934 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:12,934 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:27:12,934 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755680806]
[2025-05-07 17:27:12,934 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:12,935 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:27:12,935 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:12,935 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:27:12,935 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:12,936 INFO  L87              Difference]: Start difference. First operand 135 states and 158 transitions. Second operand  has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 5 states have call successors, (23), 1 states have call predecessors, (23), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24)
[2025-05-07 17:27:12,962 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:12,962 INFO  L93              Difference]: Finished difference Result 140 states and 163 transitions.
[2025-05-07 17:27:12,963 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:27:12,963 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 5 states have call successors, (23), 1 states have call predecessors, (23), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 90
[2025-05-07 17:27:12,963 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:12,964 INFO  L225             Difference]: With dead ends: 140
[2025-05-07 17:27:12,964 INFO  L226             Difference]: Without dead ends: 131
[2025-05-07 17:27:12,964 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:12,965 INFO  L437           NwaCegarLoop]: 144 mSDtfsCounter, 1 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:12,965 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 703 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:12,965 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 131 states.
[2025-05-07 17:27:12,970 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131.
[2025-05-07 17:27:12,970 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 131 states, 57 states have (on average 1.0350877192982457) internal successors, (59), 59 states have internal predecessors, (59), 38 states have call successors, (43), 29 states have call predecessors, (43), 37 states have return successors, (50), 42 states have call predecessors, (50), 38 states have call successors, (50)
[2025-05-07 17:27:12,971 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 152 transitions.
[2025-05-07 17:27:12,971 INFO  L79                 Accepts]: Start accepts. Automaton has 131 states and 152 transitions. Word has length 90
[2025-05-07 17:27:12,972 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:12,972 INFO  L485      AbstractCegarLoop]: Abstraction has 131 states and 152 transitions.
[2025-05-07 17:27:12,972 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 5 states have call successors, (23), 1 states have call predecessors, (23), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24)
[2025-05-07 17:27:12,972 INFO  L278                IsEmpty]: Start isEmpty. Operand 131 states and 152 transitions.
[2025-05-07 17:27:12,973 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 91
[2025-05-07 17:27:12,973 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:12,973 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:12,973 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2025-05-07 17:27:12,973 INFO  L403      AbstractCegarLoop]: === Iteration 12 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:12,973 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:12,974 INFO  L85        PathProgramCache]: Analyzing trace with hash -1761382947, now seen corresponding path program 1 times
[2025-05-07 17:27:12,974 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:12,974 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813222255]
[2025-05-07 17:27:12,974 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:12,974 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:13,009 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes.
[2025-05-07 17:27:13,022 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements.
[2025-05-07 17:27:13,022 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:13,022 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:13,136 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2025-05-07 17:27:13,136 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:13,136 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813222255]
[2025-05-07 17:27:13,136 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813222255] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:13,136 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:13,136 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:27:13,136 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31441253]
[2025-05-07 17:27:13,136 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:13,137 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:27:13,137 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:13,137 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:27:13,137 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:13,137 INFO  L87              Difference]: Start difference. First operand 131 states and 152 transitions. Second operand  has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 5 states have call successors, (23), 1 states have call predecessors, (23), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24)
[2025-05-07 17:27:13,165 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:13,165 INFO  L93              Difference]: Finished difference Result 136 states and 157 transitions.
[2025-05-07 17:27:13,166 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:27:13,166 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 5 states have call successors, (23), 1 states have call predecessors, (23), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 90
[2025-05-07 17:27:13,166 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:13,167 INFO  L225             Difference]: With dead ends: 136
[2025-05-07 17:27:13,167 INFO  L226             Difference]: Without dead ends: 127
[2025-05-07 17:27:13,167 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:13,167 INFO  L437           NwaCegarLoop]: 138 mSDtfsCounter, 1 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:13,168 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 673 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:13,168 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 127 states.
[2025-05-07 17:27:13,172 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127.
[2025-05-07 17:27:13,172 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 127 states, 55 states have (on average 1.0363636363636364) internal successors, (57), 57 states have internal predecessors, (57), 37 states have call successors, (41), 28 states have call predecessors, (41), 36 states have return successors, (48), 41 states have call predecessors, (48), 37 states have call successors, (48)
[2025-05-07 17:27:13,173 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions.
[2025-05-07 17:27:13,173 INFO  L79                 Accepts]: Start accepts. Automaton has 127 states and 146 transitions. Word has length 90
[2025-05-07 17:27:13,173 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:13,173 INFO  L485      AbstractCegarLoop]: Abstraction has 127 states and 146 transitions.
[2025-05-07 17:27:13,174 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 5 states have call successors, (23), 1 states have call predecessors, (23), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24)
[2025-05-07 17:27:13,174 INFO  L278                IsEmpty]: Start isEmpty. Operand 127 states and 146 transitions.
[2025-05-07 17:27:13,175 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2025-05-07 17:27:13,175 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:13,175 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:13,175 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2025-05-07 17:27:13,175 INFO  L403      AbstractCegarLoop]: === Iteration 13 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:13,175 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:13,176 INFO  L85        PathProgramCache]: Analyzing trace with hash 2095890283, now seen corresponding path program 1 times
[2025-05-07 17:27:13,176 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:13,176 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905252459]
[2025-05-07 17:27:13,176 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:13,176 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:13,213 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes.
[2025-05-07 17:27:13,226 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements.
[2025-05-07 17:27:13,226 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:13,226 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:13,367 INFO  L134       CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2025-05-07 17:27:13,367 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:13,367 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905252459]
[2025-05-07 17:27:13,367 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905252459] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:13,367 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:13,367 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2025-05-07 17:27:13,367 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872780535]
[2025-05-07 17:27:13,367 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:13,368 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2025-05-07 17:27:13,368 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:13,368 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2025-05-07 17:27:13,368 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2025-05-07 17:27:13,368 INFO  L87              Difference]: Start difference. First operand 127 states and 146 transitions. Second operand  has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (25), 1 states have call predecessors, (25), 8 states have return successors, (28), 8 states have call predecessors, (28), 5 states have call successors, (28)
[2025-05-07 17:27:13,441 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:13,441 INFO  L93              Difference]: Finished difference Result 134 states and 153 transitions.
[2025-05-07 17:27:13,441 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2025-05-07 17:27:13,441 INFO  L79                 Accepts]: Start accepts. Automaton has  has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (25), 1 states have call predecessors, (25), 8 states have return successors, (28), 8 states have call predecessors, (28), 5 states have call successors, (28) Word has length 107
[2025-05-07 17:27:13,441 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:13,442 INFO  L225             Difference]: With dead ends: 134
[2025-05-07 17:27:13,442 INFO  L226             Difference]: Without dead ends: 127
[2025-05-07 17:27:13,442 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2025-05-07 17:27:13,442 INFO  L437           NwaCegarLoop]: 122 mSDtfsCounter, 1 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:13,443 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 960 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:27:13,443 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 127 states.
[2025-05-07 17:27:13,445 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127.
[2025-05-07 17:27:13,446 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 127 states, 55 states have (on average 1.0363636363636364) internal successors, (57), 57 states have internal predecessors, (57), 37 states have call successors, (41), 28 states have call predecessors, (41), 36 states have return successors, (47), 41 states have call predecessors, (47), 37 states have call successors, (47)
[2025-05-07 17:27:13,446 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 145 transitions.
[2025-05-07 17:27:13,446 INFO  L79                 Accepts]: Start accepts. Automaton has 127 states and 145 transitions. Word has length 107
[2025-05-07 17:27:13,446 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:13,446 INFO  L485      AbstractCegarLoop]: Abstraction has 127 states and 145 transitions.
[2025-05-07 17:27:13,447 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (25), 1 states have call predecessors, (25), 8 states have return successors, (28), 8 states have call predecessors, (28), 5 states have call successors, (28)
[2025-05-07 17:27:13,447 INFO  L278                IsEmpty]: Start isEmpty. Operand 127 states and 145 transitions.
[2025-05-07 17:27:13,447 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2025-05-07 17:27:13,447 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:13,448 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:13,448 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2025-05-07 17:27:13,448 INFO  L403      AbstractCegarLoop]: === Iteration 14 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:13,448 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:13,448 INFO  L85        PathProgramCache]: Analyzing trace with hash 1440222325, now seen corresponding path program 1 times
[2025-05-07 17:27:13,448 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:13,448 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242479609]
[2025-05-07 17:27:13,448 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:13,448 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:13,480 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes.
[2025-05-07 17:27:13,489 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements.
[2025-05-07 17:27:13,489 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:13,489 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:13,615 INFO  L134       CoverageAnalysis]: Checked inductivity of 31 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2025-05-07 17:27:13,615 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:13,616 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242479609]
[2025-05-07 17:27:13,616 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242479609] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:13,616 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:13,616 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2025-05-07 17:27:13,616 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112486767]
[2025-05-07 17:27:13,616 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:13,616 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2025-05-07 17:27:13,616 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:13,617 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2025-05-07 17:27:13,617 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2025-05-07 17:27:13,617 INFO  L87              Difference]: Start difference. First operand 127 states and 145 transitions. Second operand  has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (26), 1 states have call predecessors, (26), 8 states have return successors, (28), 8 states have call predecessors, (28), 5 states have call successors, (28)
[2025-05-07 17:27:13,679 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:13,679 INFO  L93              Difference]: Finished difference Result 138 states and 156 transitions.
[2025-05-07 17:27:13,679 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2025-05-07 17:27:13,679 INFO  L79                 Accepts]: Start accepts. Automaton has  has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (26), 1 states have call predecessors, (26), 8 states have return successors, (28), 8 states have call predecessors, (28), 5 states have call successors, (28) Word has length 107
[2025-05-07 17:27:13,679 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:13,680 INFO  L225             Difference]: With dead ends: 138
[2025-05-07 17:27:13,680 INFO  L226             Difference]: Without dead ends: 123
[2025-05-07 17:27:13,680 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2025-05-07 17:27:13,680 INFO  L437           NwaCegarLoop]: 129 mSDtfsCounter, 1 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:13,681 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1012 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:27:13,681 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 123 states.
[2025-05-07 17:27:13,683 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123.
[2025-05-07 17:27:13,683 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 123 states, 53 states have (on average 1.0377358490566038) internal successors, (55), 55 states have internal predecessors, (55), 36 states have call successors, (39), 27 states have call predecessors, (39), 35 states have return successors, (45), 40 states have call predecessors, (45), 36 states have call successors, (45)
[2025-05-07 17:27:13,684 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 139 transitions.
[2025-05-07 17:27:13,684 INFO  L79                 Accepts]: Start accepts. Automaton has 123 states and 139 transitions. Word has length 107
[2025-05-07 17:27:13,684 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:13,684 INFO  L485      AbstractCegarLoop]: Abstraction has 123 states and 139 transitions.
[2025-05-07 17:27:13,684 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (26), 1 states have call predecessors, (26), 8 states have return successors, (28), 8 states have call predecessors, (28), 5 states have call successors, (28)
[2025-05-07 17:27:13,684 INFO  L278                IsEmpty]: Start isEmpty. Operand 123 states and 139 transitions.
[2025-05-07 17:27:13,685 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2025-05-07 17:27:13,685 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:13,685 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:13,685 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2025-05-07 17:27:13,685 INFO  L403      AbstractCegarLoop]: === Iteration 15 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:13,686 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:13,686 INFO  L85        PathProgramCache]: Analyzing trace with hash -1105413911, now seen corresponding path program 1 times
[2025-05-07 17:27:13,686 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:13,686 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424332032]
[2025-05-07 17:27:13,686 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:13,686 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:13,729 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes.
[2025-05-07 17:27:13,738 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements.
[2025-05-07 17:27:13,739 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:13,739 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:14,331 INFO  L134       CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2025-05-07 17:27:14,331 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:14,331 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424332032]
[2025-05-07 17:27:14,331 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424332032] provided 0 perfect and 1 imperfect interpolant sequences
[2025-05-07 17:27:14,331 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980662812]
[2025-05-07 17:27:14,331 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:14,331 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-05-07 17:27:14,334 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:27:14,336 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-05-07 17:27:14,337 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2025-05-07 17:27:14,658 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes.
[2025-05-07 17:27:14,820 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements.
[2025-05-07 17:27:14,820 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:14,821 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:14,826 INFO  L256         TraceCheckSpWp]: Trace formula consists of 1728 conjuncts, 16 conjuncts are in the unsatisfiable core
[2025-05-07 17:27:14,836 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-05-07 17:27:14,933 INFO  L134       CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2025-05-07 17:27:14,933 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-05-07 17:27:16,061 INFO  L134       CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2025-05-07 17:27:16,061 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [980662812] provided 0 perfect and 2 imperfect interpolant sequences
[2025-05-07 17:27:16,061 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-05-07 17:27:16,061 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 15
[2025-05-07 17:27:16,061 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819791216]
[2025-05-07 17:27:16,062 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-05-07 17:27:16,062 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2025-05-07 17:27:16,062 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:16,063 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2025-05-07 17:27:16,063 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210
[2025-05-07 17:27:16,063 INFO  L87              Difference]: Start difference. First operand 123 states and 139 transitions. Second operand  has 15 states, 10 states have (on average 5.1) internal successors, (51), 14 states have internal predecessors, (51), 13 states have call successors, (36), 1 states have call predecessors, (36), 10 states have return successors, (37), 11 states have call predecessors, (37), 13 states have call successors, (37)
[2025-05-07 17:27:16,209 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:16,209 INFO  L93              Difference]: Finished difference Result 125 states and 141 transitions.
[2025-05-07 17:27:16,209 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2025-05-07 17:27:16,210 INFO  L79                 Accepts]: Start accepts. Automaton has  has 15 states, 10 states have (on average 5.1) internal successors, (51), 14 states have internal predecessors, (51), 13 states have call successors, (36), 1 states have call predecessors, (36), 10 states have return successors, (37), 11 states have call predecessors, (37), 13 states have call successors, (37) Word has length 124
[2025-05-07 17:27:16,210 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:16,210 INFO  L225             Difference]: With dead ends: 125
[2025-05-07 17:27:16,210 INFO  L226             Difference]: Without dead ends: 66
[2025-05-07 17:27:16,211 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342
[2025-05-07 17:27:16,211 INFO  L437           NwaCegarLoop]: 118 mSDtfsCounter, 4 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:16,211 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1476 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:27:16,211 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 66 states.
[2025-05-07 17:27:16,212 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66.
[2025-05-07 17:27:16,213 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 66 states, 29 states have (on average 1.0) internal successors, (29), 29 states have internal predecessors, (29), 18 states have call successors, (18), 18 states have call predecessors, (18), 18 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2025-05-07 17:27:16,213 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 65 transitions.
[2025-05-07 17:27:16,213 INFO  L79                 Accepts]: Start accepts. Automaton has 66 states and 65 transitions. Word has length 124
[2025-05-07 17:27:16,213 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:16,213 INFO  L485      AbstractCegarLoop]: Abstraction has 66 states and 65 transitions.
[2025-05-07 17:27:16,213 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 10 states have (on average 5.1) internal successors, (51), 14 states have internal predecessors, (51), 13 states have call successors, (36), 1 states have call predecessors, (36), 10 states have return successors, (37), 11 states have call predecessors, (37), 13 states have call successors, (37)
[2025-05-07 17:27:16,213 INFO  L278                IsEmpty]: Start isEmpty. Operand 66 states and 65 transitions.
[2025-05-07 17:27:16,214 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2025-05-07 17:27:16,214 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:16,214 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:16,222 INFO  L552       MonitoredProcess]: [MP /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2025-05-07 17:27:16,415 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15
[2025-05-07 17:27:16,415 INFO  L403      AbstractCegarLoop]: === Iteration 16 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:16,416 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:16,416 INFO  L85        PathProgramCache]: Analyzing trace with hash -883282644, now seen corresponding path program 1 times
[2025-05-07 17:27:16,416 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:16,417 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34188841]
[2025-05-07 17:27:16,417 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:16,417 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:16,491 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes.
[2025-05-07 17:27:16,503 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements.
[2025-05-07 17:27:16,504 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:16,504 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:16,547 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:16,547 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:16,547 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34188841]
[2025-05-07 17:27:16,547 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34188841] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:16,548 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:16,548 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:27:16,548 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120638832]
[2025-05-07 17:27:16,548 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:16,548 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:27:16,548 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:16,549 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:27:16,549 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:16,549 INFO  L87              Difference]: Start difference. First operand 66 states and 65 transitions. Second operand  has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18)
[2025-05-07 17:27:16,552 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:16,552 INFO  L93              Difference]: Finished difference Result 58 states and 57 transitions.
[2025-05-07 17:27:16,553 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:27:16,553 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 65
[2025-05-07 17:27:16,553 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:16,553 INFO  L225             Difference]: With dead ends: 58
[2025-05-07 17:27:16,553 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:27:16,553 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:16,553 INFO  L437           NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:16,554 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 165 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:16,554 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:27:16,554 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:27:16,554 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-05-07 17:27:16,554 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:27:16,554 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65
[2025-05-07 17:27:16,554 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:16,554 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:27:16,554 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18)
[2025-05-07 17:27:16,554 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:27:16,555 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:27:16,556 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:27:16,557 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2025-05-07 17:27:16,559 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:16,561 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:27:16,562 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:27:16 BoogieIcfgContainer
[2025-05-07 17:27:16,562 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:27:16,563 INFO  L158              Benchmark]: Toolchain (without parser) took 8260.67ms. Allocated memory was 234.9MB in the beginning and 352.3MB in the end (delta: 117.4MB). Free memory was 140.9MB in the beginning and 192.7MB in the end (delta: -51.8MB). Peak memory consumption was 88.1MB. Max. memory is 33.6GB.
[2025-05-07 17:27:16,563 INFO  L158              Benchmark]: SmtParser took 0.27ms. Allocated memory is still 234.9MB. Free memory is still 172.7MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:16,563 INFO  L158              Benchmark]: ChcToBoogie took 50.12ms. Allocated memory is still 234.9MB. Free memory was 140.9MB in the beginning and 136.9MB in the end (delta: 4.0MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:27:16,564 INFO  L158              Benchmark]: Boogie Preprocessor took 67.34ms. Allocated memory is still 234.9MB. Free memory was 136.9MB in the beginning and 133.2MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:27:16,564 INFO  L158              Benchmark]: RCFGBuilder took 450.18ms. Allocated memory is still 234.9MB. Free memory was 133.1MB in the beginning and 155.6MB in the end (delta: -22.5MB). Peak memory consumption was 26.3MB. Max. memory is 33.6GB.
[2025-05-07 17:27:16,564 INFO  L158              Benchmark]: TraceAbstraction took 7689.38ms. Allocated memory was 234.9MB in the beginning and 352.3MB in the end (delta: 117.4MB). Free memory was 154.8MB in the beginning and 192.7MB in the end (delta: -37.9MB). Peak memory consumption was 78.6MB. Max. memory is 33.6GB.
[2025-05-07 17:27:16,565 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.27ms. Allocated memory is still 234.9MB. Free memory is still 172.7MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 50.12ms. Allocated memory is still 234.9MB. Free memory was 140.9MB in the beginning and 136.9MB in the end (delta: 4.0MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * Boogie Preprocessor took 67.34ms. Allocated memory is still 234.9MB. Free memory was 136.9MB in the beginning and 133.2MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 450.18ms. Allocated memory is still 234.9MB. Free memory was 133.1MB in the beginning and 155.6MB in the end (delta: -22.5MB). Peak memory consumption was 26.3MB. Max. memory is 33.6GB.
 * TraceAbstraction took 7689.38ms. Allocated memory was 234.9MB in the beginning and 352.3MB in the end (delta: 117.4MB). Free memory was 154.8MB in the beginning and 192.7MB in the end (delta: -37.9MB). Peak memory consumption was 78.6MB. Max. memory is 33.6GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Unknown line] : the set of constraint Horn clauses is satisfiable
    For all program executions holds that the set of constraint Horn clauses is satisfiable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 31 procedures, 120 locations, 187 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.7s, OverallIterations: 16, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 15242 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13123 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1041 IncrementalHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 2119 mSDtfsCounter, 1041 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 388 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=154occurred in iteration=8, InterpolantAutomatonStates: 131, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 52 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 1430 NumberOfCodeBlocks, 1430 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1536 ConstructedInterpolants, 0 QuantifiedInterpolants, 2117 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1728 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 18 InterpolantComputations, 15 PerfectInterpolantSequences, 207/234 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2025-05-07 17:27:16,576 INFO  L552       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...
sat
