./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/typecast/address_literal.sol_3_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:24:26,904 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:24:26,956 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3d4289-f834-4cb6-828f-6572dd7310b0/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:24:26,960 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:24:26,961 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:24:26,978 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:24:26,979 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:24:26,979 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:24:26,979 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:24:26,979 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:24:26,980 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:24:26,980 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:24:26,980 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:24:26,980 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:24:26,980 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:24:26,980 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:24:26,980 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:24:26,980 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:24:26,980 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:24:26,981 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:24:26,981 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:24:26,981 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:24:26,981 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:24:26,981 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:24:26,981 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:24:26,982 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:24:26,982 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:24:27,191 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:24:27,197 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:24:27,198 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:24:27,199 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:24:27,199 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:24:27,200 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3d4289-f834-4cb6-828f-6572dd7310b0/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/typecast/address_literal.sol_3_no_adts_000.smt2
[2025-05-07 17:24:27,201 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:24:27,203 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:24:27,476 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3d4289-f834-4cb6-828f-6572dd7310b0/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/typecast/address_literal.sol_3_no_adts_000.smt2
[2025-05-07 17:24:27,478 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:24:27,479 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:24:27,480 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:24:27,480 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:24:27,480 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:24:27,482 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:24:27" (1/1) ...
[2025-05-07 17:24:27,527 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:27 Unit
[2025-05-07 17:24:27,527 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:24:27,528 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:24:27,528 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:24:27,528 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:24:27,540 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:27" (1/1) ...
[2025-05-07 17:24:27,540 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:27" (1/1) ...
[2025-05-07 17:24:27,570 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:27" (1/1) ...
[2025-05-07 17:24:27,570 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:27" (1/1) ...
[2025-05-07 17:24:27,578 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:27" (1/1) ...
[2025-05-07 17:24:27,579 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:27" (1/1) ...
[2025-05-07 17:24:27,581 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:27" (1/1) ...
[2025-05-07 17:24:27,583 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:27" (1/1) ...
[2025-05-07 17:24:27,584 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:27" (1/1) ...
[2025-05-07 17:24:27,595 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:24:27,595 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:24:27,595 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:24:27,595 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:24:27,596 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:27" (1/1) ...
[2025-05-07 17:24:27,598 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:24:27,607 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:24:27,615 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 17:24:27,617 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 17:24:27,625 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:24:27,625 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:24:27,625 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:24:27,625 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_10_0 given in one single declaration
[2025-05-07 17:24:27,625 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_10_0
[2025-05-07 17:24:27,625 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_10_0
[2025-05-07 17:24:27,625 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__28_92_0 given in one single declaration
[2025-05-07 17:24:27,625 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__28_92_0
[2025-05-07 17:24:27,625 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__28_92_0
[2025-05-07 17:24:27,625 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_function_f__28_92_0 given in one single declaration
[2025-05-07 17:24:27,625 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_function_f__28_92_0
[2025-05-07 17:24:27,626 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_function_f__28_92_0
[2025-05-07 17:24:27,626 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__28_92_0 given in one single declaration
[2025-05-07 17:24:27,626 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__28_92_0
[2025-05-07 17:24:27,626 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__28_92_0
[2025-05-07 17:24:27,626 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_return_function_f__28_92_0 given in one single declaration
[2025-05-07 17:24:27,626 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_return_function_f__28_92_0
[2025-05-07 17:24:27,626 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_return_function_f__28_92_0
[2025-05-07 17:24:27,626 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_f_27_92_0 given in one single declaration
[2025-05-07 17:24:27,626 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_f_27_92_0
[2025-05-07 17:24:27,626 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_f_27_92_0
[2025-05-07 17:24:27,626 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_function_f__28_92_0 given in one single declaration
[2025-05-07 17:24:27,626 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_function_f__28_92_0
[2025-05-07 17:24:27,626 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_function_f__28_92_0
[2025-05-07 17:24:27,626 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_function_f__28_92_0 given in one single declaration
[2025-05-07 17:24:27,626 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_function_f__28_92_0
[2025-05-07 17:24:27,626 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_function_f__28_92_0
[2025-05-07 17:24:27,626 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_f__28_92_0 given in one single declaration
[2025-05-07 17:24:27,626 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_f__28_92_0
[2025-05-07 17:24:27,626 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_f__28_92_0
[2025-05-07 17:24:27,627 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_92_0 given in one single declaration
[2025-05-07 17:24:27,627 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_92_0
[2025-05-07 17:24:27,627 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_92_0
[2025-05-07 17:24:27,627 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_92_0 given in one single declaration
[2025-05-07 17:24:27,627 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_92_0
[2025-05-07 17:24:27,627 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_92_0
[2025-05-07 17:24:27,627 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_24_C_92_0 given in one single declaration
[2025-05-07 17:24:27,627 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_24_C_92_0
[2025-05-07 17:24:27,627 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_24_C_92_0
[2025-05-07 17:24:27,627 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_21_C_92_0 given in one single declaration
[2025-05-07 17:24:27,627 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_21_C_92_0
[2025-05-07 17:24:27,627 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_21_C_92_0
[2025-05-07 17:24:27,627 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_23_C_92_0 given in one single declaration
[2025-05-07 17:24:27,627 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_23_C_92_0
[2025-05-07 17:24:27,627 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_23_C_92_0
[2025-05-07 17:24:27,627 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_22_C_92_0 given in one single declaration
[2025-05-07 17:24:27,627 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_22_C_92_0
[2025-05-07 17:24:27,627 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_22_C_92_0
[2025-05-07 17:24:27,627 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_6_function_g__91_92_0 given in one single declaration
[2025-05-07 17:24:27,627 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_6_function_g__91_92_0
[2025-05-07 17:24:27,628 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_6_function_g__91_92_0
[2025-05-07 17:24:27,628 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_20_function_g__91_92_0 given in one single declaration
[2025-05-07 17:24:27,628 INFO  L130     BoogieDeclarations]: Found specification of procedure block_20_function_g__91_92_0
[2025-05-07 17:24:27,628 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_20_function_g__91_92_0
[2025-05-07 17:24:27,628 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_5_function_g__91_92_0 given in one single declaration
[2025-05-07 17:24:27,628 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_5_function_g__91_92_0
[2025-05-07 17:24:27,628 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_5_function_g__91_92_0
[2025-05-07 17:24:27,628 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_19_function_g__91_92_0 given in one single declaration
[2025-05-07 17:24:27,628 INFO  L130     BoogieDeclarations]: Found specification of procedure block_19_function_g__91_92_0
[2025-05-07 17:24:27,628 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_19_function_g__91_92_0
[2025-05-07 17:24:27,628 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_g_90_92_0 given in one single declaration
[2025-05-07 17:24:27,628 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_g_90_92_0
[2025-05-07 17:24:27,628 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_g_90_92_0
[2025-05-07 17:24:27,628 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_function_g__91_92_0 given in one single declaration
[2025-05-07 17:24:27,628 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_function_g__91_92_0
[2025-05-07 17:24:27,628 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_function_g__91_92_0
[2025-05-07 17:24:27,628 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_16_function_g__91_92_0 given in one single declaration
[2025-05-07 17:24:27,628 INFO  L130     BoogieDeclarations]: Found specification of procedure block_16_function_g__91_92_0
[2025-05-07 17:24:27,628 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_16_function_g__91_92_0
[2025-05-07 17:24:27,628 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_15_return_function_g__91_92_0 given in one single declaration
[2025-05-07 17:24:27,629 INFO  L130     BoogieDeclarations]: Found specification of procedure block_15_return_function_g__91_92_0
[2025-05-07 17:24:27,629 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_15_return_function_g__91_92_0
[2025-05-07 17:24:27,629 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_17_function_g__91_92_0 given in one single declaration
[2025-05-07 17:24:27,629 INFO  L130     BoogieDeclarations]: Found specification of procedure block_17_function_g__91_92_0
[2025-05-07 17:24:27,629 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_17_function_g__91_92_0
[2025-05-07 17:24:27,629 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_18_function_g__91_92_0 given in one single declaration
[2025-05-07 17:24:27,629 INFO  L130     BoogieDeclarations]: Found specification of procedure block_18_function_g__91_92_0
[2025-05-07 17:24:27,629 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_18_function_g__91_92_0
[2025-05-07 17:24:27,629 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:24:27,629 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:24:27,629 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:24:27,775 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:24:27,777 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:24:28,042 INFO  L?                        ?]: Removed 264 outVars from TransFormulas that were not future-live.
[2025-05-07 17:24:28,042 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:24:28,054 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:24:28,055 INFO  L312             CfgBuilder]: Removed 15 assume(true) statements.
[2025-05-07 17:24:28,055 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:24:28 BoogieIcfgContainer
[2025-05-07 17:24:28,055 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:24:28,057 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:24:28,057 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:24:28,061 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:24:28,061 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:24:27" (1/3) ...
[2025-05-07 17:24:28,062 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@706638af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:24:28, skipping insertion in model container
[2025-05-07 17:24:28,062 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:24:27" (2/3) ...
[2025-05-07 17:24:28,062 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@706638af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:24:28, skipping insertion in model container
[2025-05-07 17:24:28,062 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:24:28" (3/3) ...
[2025-05-07 17:24:28,063 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:24:28,078 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:24:28,080 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 27 procedures, 104 locations, 160 edges, 27 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:24:28,114 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:24:28,122 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;@15e56d39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:24:28,122 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:24:28,125 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 104 states, 45 states have (on average 1.0888888888888888) internal successors, (49), 49 states have internal predecessors, (49), 31 states have call successors, (37), 26 states have call predecessors, (37), 26 states have return successors, (37), 28 states have call predecessors, (37), 31 states have call successors, (37)
[2025-05-07 17:24:28,132 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:24:28,133 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:24:28,133 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 17:24:28,133 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:24:28,137 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:24:28,137 INFO  L85        PathProgramCache]: Analyzing trace with hash 1629038330, now seen corresponding path program 1 times
[2025-05-07 17:24:28,142 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:24:28,143 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703417000]
[2025-05-07 17:24:28,143 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:28,143 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:24:28,188 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:24:28,241 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:24:28,241 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:28,241 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:28,715 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 17:24:28,716 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:24:28,716 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703417000]
[2025-05-07 17:24:28,717 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703417000] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:24:28,717 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:24:28,719 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2025-05-07 17:24:28,721 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639723563]
[2025-05-07 17:24:28,722 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:24:28,725 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2025-05-07 17:24:28,726 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:24:28,754 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2025-05-07 17:24:28,755 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240
[2025-05-07 17:24:28,757 INFO  L87              Difference]: Start difference. First operand  has 104 states, 45 states have (on average 1.0888888888888888) internal successors, (49), 49 states have internal predecessors, (49), 31 states have call successors, (37), 26 states have call predecessors, (37), 26 states have return successors, (37), 28 states have call predecessors, (37), 31 states have call successors, (37) Second operand  has 16 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 14 states have internal predecessors, (23), 7 states have call successors, (14), 1 states have call predecessors, (14), 12 states have return successors, (14), 11 states have call predecessors, (14), 7 states have call successors, (14)
[2025-05-07 17:24:29,095 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:24:29,095 INFO  L93              Difference]: Finished difference Result 103 states and 121 transitions.
[2025-05-07 17:24:29,096 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2025-05-07 17:24:29,097 INFO  L79                 Accepts]: Start accepts. Automaton has  has 16 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 14 states have internal predecessors, (23), 7 states have call successors, (14), 1 states have call predecessors, (14), 12 states have return successors, (14), 11 states have call predecessors, (14), 7 states have call successors, (14) Word has length 51
[2025-05-07 17:24:29,098 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:24:29,106 INFO  L225             Difference]: With dead ends: 103
[2025-05-07 17:24:29,106 INFO  L226             Difference]: Without dead ends: 100
[2025-05-07 17:24:29,108 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2025-05-07 17:24:29,110 INFO  L437           NwaCegarLoop]: 92 mSDtfsCounter, 5 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1338 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2025-05-07 17:24:29,111 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1338 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2025-05-07 17:24:29,121 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 100 states.
[2025-05-07 17:24:29,142 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 98.
[2025-05-07 17:24:29,142 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 98 states, 41 states have (on average 1.0731707317073171) internal successors, (44), 44 states have internal predecessors, (44), 30 states have call successors, (33), 23 states have call predecessors, (33), 26 states have return successors, (39), 30 states have call predecessors, (39), 30 states have call successors, (39)
[2025-05-07 17:24:29,145 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 116 transitions.
[2025-05-07 17:24:29,146 INFO  L79                 Accepts]: Start accepts. Automaton has 98 states and 116 transitions. Word has length 51
[2025-05-07 17:24:29,147 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:24:29,147 INFO  L485      AbstractCegarLoop]: Abstraction has 98 states and 116 transitions.
[2025-05-07 17:24:29,147 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 14 states have internal predecessors, (23), 7 states have call successors, (14), 1 states have call predecessors, (14), 12 states have return successors, (14), 11 states have call predecessors, (14), 7 states have call successors, (14)
[2025-05-07 17:24:29,147 INFO  L278                IsEmpty]: Start isEmpty. Operand 98 states and 116 transitions.
[2025-05-07 17:24:29,149 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:24:29,149 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:24:29,149 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 17:24:29,150 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:24:29,150 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:24:29,150 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:24:29,150 INFO  L85        PathProgramCache]: Analyzing trace with hash -676406788, now seen corresponding path program 1 times
[2025-05-07 17:24:29,150 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:24:29,150 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764344870]
[2025-05-07 17:24:29,150 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:29,150 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:24:29,182 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:24:29,187 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:24:29,188 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:29,188 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:29,264 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 17:24:29,264 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:24:29,264 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764344870]
[2025-05-07 17:24:29,264 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764344870] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:24:29,264 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:24:29,264 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:24:29,264 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012841203]
[2025-05-07 17:24:29,264 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:24:29,265 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:24:29,266 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:24:29,266 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:24:29,266 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:24:29,267 INFO  L87              Difference]: Start difference. First operand 98 states and 116 transitions. Second operand  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:24:29,277 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:24:29,277 INFO  L93              Difference]: Finished difference Result 100 states and 117 transitions.
[2025-05-07 17:24:29,277 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:24:29,278 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 51
[2025-05-07 17:24:29,278 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:24:29,279 INFO  L225             Difference]: With dead ends: 100
[2025-05-07 17:24:29,279 INFO  L226             Difference]: Without dead ends: 96
[2025-05-07 17:24:29,280 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 17:24:29,280 INFO  L437           NwaCegarLoop]: 103 mSDtfsCounter, 1 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:24:29,281 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 302 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:24:29,281 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 96 states.
[2025-05-07 17:24:29,290 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96.
[2025-05-07 17:24:29,290 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 96 states, 41 states have (on average 1.048780487804878) internal successors, (43), 43 states have internal predecessors, (43), 28 states have call successors, (31), 23 states have call predecessors, (31), 26 states have return successors, (37), 29 states have call predecessors, (37), 28 states have call successors, (37)
[2025-05-07 17:24:29,292 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions.
[2025-05-07 17:24:29,292 INFO  L79                 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 51
[2025-05-07 17:24:29,292 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:24:29,292 INFO  L485      AbstractCegarLoop]: Abstraction has 96 states and 111 transitions.
[2025-05-07 17:24:29,292 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:24:29,293 INFO  L278                IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions.
[2025-05-07 17:24:29,294 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:24:29,294 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:24:29,294 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 17:24:29,294 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:24:29,295 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:24:29,295 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:24:29,295 INFO  L85        PathProgramCache]: Analyzing trace with hash 828946944, now seen corresponding path program 1 times
[2025-05-07 17:24:29,295 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:24:29,295 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154054209]
[2025-05-07 17:24:29,295 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:29,295 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:24:29,318 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:24:29,328 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:24:29,328 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:29,328 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:29,615 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 17:24:29,615 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:24:29,615 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154054209]
[2025-05-07 17:24:29,615 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154054209] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:24:29,615 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:24:29,615 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2025-05-07 17:24:29,615 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130561542]
[2025-05-07 17:24:29,615 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:24:29,616 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2025-05-07 17:24:29,616 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:24:29,616 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2025-05-07 17:24:29,617 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240
[2025-05-07 17:24:29,617 INFO  L87              Difference]: Start difference. First operand 96 states and 111 transitions. Second operand  has 16 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 14 states have internal predecessors, (23), 7 states have call successors, (14), 1 states have call predecessors, (14), 12 states have return successors, (14), 11 states have call predecessors, (14), 7 states have call successors, (14)
[2025-05-07 17:24:29,842 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:24:29,842 INFO  L93              Difference]: Finished difference Result 103 states and 120 transitions.
[2025-05-07 17:24:29,843 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2025-05-07 17:24:29,843 INFO  L79                 Accepts]: Start accepts. Automaton has  has 16 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 14 states have internal predecessors, (23), 7 states have call successors, (14), 1 states have call predecessors, (14), 12 states have return successors, (14), 11 states have call predecessors, (14), 7 states have call successors, (14) Word has length 51
[2025-05-07 17:24:29,843 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:24:29,844 INFO  L225             Difference]: With dead ends: 103
[2025-05-07 17:24:29,844 INFO  L226             Difference]: Without dead ends: 103
[2025-05-07 17:24:29,845 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2025-05-07 17:24:29,846 INFO  L437           NwaCegarLoop]: 86 mSDtfsCounter, 5 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2025-05-07 17:24:29,846 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1250 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2025-05-07 17:24:29,847 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 103 states.
[2025-05-07 17:24:29,855 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 96.
[2025-05-07 17:24:29,855 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 96 states, 41 states have (on average 1.048780487804878) internal successors, (43), 43 states have internal predecessors, (43), 28 states have call successors, (31), 23 states have call predecessors, (31), 26 states have return successors, (37), 29 states have call predecessors, (37), 28 states have call successors, (37)
[2025-05-07 17:24:29,856 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions.
[2025-05-07 17:24:29,857 INFO  L79                 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 51
[2025-05-07 17:24:29,857 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:24:29,857 INFO  L485      AbstractCegarLoop]: Abstraction has 96 states and 111 transitions.
[2025-05-07 17:24:29,857 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 14 states have internal predecessors, (23), 7 states have call successors, (14), 1 states have call predecessors, (14), 12 states have return successors, (14), 11 states have call predecessors, (14), 7 states have call successors, (14)
[2025-05-07 17:24:29,857 INFO  L278                IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions.
[2025-05-07 17:24:29,859 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:24:29,859 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:24:29,859 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 17:24:29,859 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:24:29,859 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:24:29,859 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:24:29,859 INFO  L85        PathProgramCache]: Analyzing trace with hash -2074479568, now seen corresponding path program 1 times
[2025-05-07 17:24:29,860 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:24:29,860 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472520894]
[2025-05-07 17:24:29,860 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:29,860 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:24:29,883 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:24:29,895 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:24:29,895 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:29,895 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:29,984 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 17:24:29,985 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:24:29,985 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472520894]
[2025-05-07 17:24:29,985 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472520894] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:24:29,985 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:24:29,985 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:24:29,985 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582955547]
[2025-05-07 17:24:29,985 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:24:29,985 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:24:29,985 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:24:29,986 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:24:29,986 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:24:29,986 INFO  L87              Difference]: Start difference. First operand 96 states and 111 transitions. Second operand  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 7 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:24:30,051 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:24:30,051 INFO  L93              Difference]: Finished difference Result 96 states and 109 transitions.
[2025-05-07 17:24:30,051 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:24:30,051 INFO  L79                 Accepts]: Start accepts. Automaton has  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 7 states have call predecessors, (14), 5 states have call successors, (14) Word has length 51
[2025-05-07 17:24:30,052 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:24:30,053 INFO  L225             Difference]: With dead ends: 96
[2025-05-07 17:24:30,053 INFO  L226             Difference]: Without dead ends: 95
[2025-05-07 17:24:30,053 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 17:24:30,054 INFO  L437           NwaCegarLoop]: 95 mSDtfsCounter, 2 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 645 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 17:24:30,054 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 645 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:24:30,055 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 95 states.
[2025-05-07 17:24:30,060 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95.
[2025-05-07 17:24:30,060 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 95 states, 41 states have (on average 1.048780487804878) internal successors, (43), 43 states have internal predecessors, (43), 27 states have call successors, (30), 23 states have call predecessors, (30), 26 states have return successors, (34), 28 states have call predecessors, (34), 27 states have call successors, (34)
[2025-05-07 17:24:30,061 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 107 transitions.
[2025-05-07 17:24:30,061 INFO  L79                 Accepts]: Start accepts. Automaton has 95 states and 107 transitions. Word has length 51
[2025-05-07 17:24:30,061 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:24:30,061 INFO  L485      AbstractCegarLoop]: Abstraction has 95 states and 107 transitions.
[2025-05-07 17:24:30,061 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 8 states have internal predecessors, (23), 5 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (14), 7 states have call predecessors, (14), 5 states have call successors, (14)
[2025-05-07 17:24:30,062 INFO  L278                IsEmpty]: Start isEmpty. Operand 95 states and 107 transitions.
[2025-05-07 17:24:30,063 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 77
[2025-05-07 17:24:30,063 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:24:30,063 INFO  L218           NwaCegarLoop]: trace histogram [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]
[2025-05-07 17:24:30,063 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-05-07 17:24:30,063 INFO  L403      AbstractCegarLoop]: === Iteration 5 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:24:30,064 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:24:30,064 INFO  L85        PathProgramCache]: Analyzing trace with hash 156856933, now seen corresponding path program 1 times
[2025-05-07 17:24:30,064 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:24:30,064 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098696903]
[2025-05-07 17:24:30,064 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:30,064 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:24:30,107 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes.
[2025-05-07 17:24:30,118 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements.
[2025-05-07 17:24:30,118 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:30,118 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:30,636 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2025-05-07 17:24:30,636 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:24:30,636 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098696903]
[2025-05-07 17:24:30,636 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098696903] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:24:30,636 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:24:30,637 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22
[2025-05-07 17:24:30,637 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598865526]
[2025-05-07 17:24:30,637 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:24:30,637 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2025-05-07 17:24:30,637 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:24:30,638 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2025-05-07 17:24:30,638 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462
[2025-05-07 17:24:30,638 INFO  L87              Difference]: Start difference. First operand 95 states and 107 transitions. Second operand  has 22 states, 16 states have (on average 2.0625) internal successors, (33), 19 states have internal predecessors, (33), 11 states have call successors, (21), 1 states have call predecessors, (21), 16 states have return successors, (21), 16 states have call predecessors, (21), 11 states have call successors, (21)
[2025-05-07 17:24:31,010 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:24:31,010 INFO  L93              Difference]: Finished difference Result 114 states and 138 transitions.
[2025-05-07 17:24:31,011 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2025-05-07 17:24:31,011 INFO  L79                 Accepts]: Start accepts. Automaton has  has 22 states, 16 states have (on average 2.0625) internal successors, (33), 19 states have internal predecessors, (33), 11 states have call successors, (21), 1 states have call predecessors, (21), 16 states have return successors, (21), 16 states have call predecessors, (21), 11 states have call successors, (21) Word has length 76
[2025-05-07 17:24:31,012 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:24:31,013 INFO  L225             Difference]: With dead ends: 114
[2025-05-07 17:24:31,013 INFO  L226             Difference]: Without dead ends: 114
[2025-05-07 17:24:31,014 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=641, Unknown=0, NotChecked=0, Total=702
[2025-05-07 17:24:31,015 INFO  L437           NwaCegarLoop]: 93 mSDtfsCounter, 6 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1881 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2025-05-07 17:24:31,015 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 1881 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2025-05-07 17:24:31,016 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 114 states.
[2025-05-07 17:24:31,022 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 110.
[2025-05-07 17:24:31,022 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 110 states, 46 states have (on average 1.0434782608695652) internal successors, (48), 48 states have internal predecessors, (48), 32 states have call successors, (35), 23 states have call predecessors, (35), 31 states have return successors, (49), 38 states have call predecessors, (49), 32 states have call successors, (49)
[2025-05-07 17:24:31,023 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 132 transitions.
[2025-05-07 17:24:31,023 INFO  L79                 Accepts]: Start accepts. Automaton has 110 states and 132 transitions. Word has length 76
[2025-05-07 17:24:31,023 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:24:31,023 INFO  L485      AbstractCegarLoop]: Abstraction has 110 states and 132 transitions.
[2025-05-07 17:24:31,023 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 22 states, 16 states have (on average 2.0625) internal successors, (33), 19 states have internal predecessors, (33), 11 states have call successors, (21), 1 states have call predecessors, (21), 16 states have return successors, (21), 16 states have call predecessors, (21), 11 states have call successors, (21)
[2025-05-07 17:24:31,024 INFO  L278                IsEmpty]: Start isEmpty. Operand 110 states and 132 transitions.
[2025-05-07 17:24:31,024 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 77
[2025-05-07 17:24:31,024 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:24:31,024 INFO  L218           NwaCegarLoop]: trace histogram [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]
[2025-05-07 17:24:31,024 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-05-07 17:24:31,025 INFO  L403      AbstractCegarLoop]: === Iteration 6 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:24:31,025 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:24:31,025 INFO  L85        PathProgramCache]: Analyzing trace with hash -643234453, now seen corresponding path program 1 times
[2025-05-07 17:24:31,025 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:24:31,025 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409342307]
[2025-05-07 17:24:31,025 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:31,025 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:24:31,053 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes.
[2025-05-07 17:24:31,063 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements.
[2025-05-07 17:24:31,064 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:31,064 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:31,491 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2025-05-07 17:24:31,491 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:24:31,491 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409342307]
[2025-05-07 17:24:31,491 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409342307] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:24:31,491 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:24:31,491 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22
[2025-05-07 17:24:31,491 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300968764]
[2025-05-07 17:24:31,491 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:24:31,492 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2025-05-07 17:24:31,492 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:24:31,492 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2025-05-07 17:24:31,492 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462
[2025-05-07 17:24:31,493 INFO  L87              Difference]: Start difference. First operand 110 states and 132 transitions. Second operand  has 22 states, 16 states have (on average 2.0625) internal successors, (33), 19 states have internal predecessors, (33), 11 states have call successors, (21), 1 states have call predecessors, (21), 16 states have return successors, (21), 16 states have call predecessors, (21), 11 states have call successors, (21)
[2025-05-07 17:24:31,902 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:24:31,902 INFO  L93              Difference]: Finished difference Result 112 states and 134 transitions.
[2025-05-07 17:24:31,903 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2025-05-07 17:24:31,903 INFO  L79                 Accepts]: Start accepts. Automaton has  has 22 states, 16 states have (on average 2.0625) internal successors, (33), 19 states have internal predecessors, (33), 11 states have call successors, (21), 1 states have call predecessors, (21), 16 states have return successors, (21), 16 states have call predecessors, (21), 11 states have call successors, (21) Word has length 76
[2025-05-07 17:24:31,904 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:24:31,905 INFO  L225             Difference]: With dead ends: 112
[2025-05-07 17:24:31,905 INFO  L226             Difference]: Without dead ends: 111
[2025-05-07 17:24:31,905 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=641, Unknown=0, NotChecked=0, Total=702
[2025-05-07 17:24:31,906 INFO  L437           NwaCegarLoop]: 88 mSDtfsCounter, 5 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2025-05-07 17:24:31,906 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1780 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2025-05-07 17:24:31,907 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 111 states.
[2025-05-07 17:24:31,914 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 102.
[2025-05-07 17:24:31,915 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 102 states, 43 states have (on average 1.0465116279069768) internal successors, (45), 45 states have internal predecessors, (45), 30 states have call successors, (33), 23 states have call predecessors, (33), 28 states have return successors, (40), 33 states have call predecessors, (40), 30 states have call successors, (40)
[2025-05-07 17:24:31,916 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 118 transitions.
[2025-05-07 17:24:31,916 INFO  L79                 Accepts]: Start accepts. Automaton has 102 states and 118 transitions. Word has length 76
[2025-05-07 17:24:31,916 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:24:31,916 INFO  L485      AbstractCegarLoop]: Abstraction has 102 states and 118 transitions.
[2025-05-07 17:24:31,917 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 22 states, 16 states have (on average 2.0625) internal successors, (33), 19 states have internal predecessors, (33), 11 states have call successors, (21), 1 states have call predecessors, (21), 16 states have return successors, (21), 16 states have call predecessors, (21), 11 states have call successors, (21)
[2025-05-07 17:24:31,917 INFO  L278                IsEmpty]: Start isEmpty. Operand 102 states and 118 transitions.
[2025-05-07 17:24:31,918 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 77
[2025-05-07 17:24:31,918 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:24:31,918 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]
[2025-05-07 17:24:31,918 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-05-07 17:24:31,918 INFO  L403      AbstractCegarLoop]: === Iteration 7 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:24:31,919 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:24:31,919 INFO  L85        PathProgramCache]: Analyzing trace with hash -1987022679, now seen corresponding path program 1 times
[2025-05-07 17:24:31,919 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:24:31,919 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245880029]
[2025-05-07 17:24:31,919 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:31,919 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:24:31,948 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes.
[2025-05-07 17:24:31,960 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements.
[2025-05-07 17:24:31,960 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:31,960 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:32,359 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2025-05-07 17:24:32,359 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:24:32,359 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245880029]
[2025-05-07 17:24:32,359 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245880029] provided 0 perfect and 1 imperfect interpolant sequences
[2025-05-07 17:24:32,359 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560597689]
[2025-05-07 17:24:32,359 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:32,359 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-05-07 17:24:32,361 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:24:32,363 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 17:24:32,364 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2025-05-07 17:24:32,565 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes.
[2025-05-07 17:24:32,680 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements.
[2025-05-07 17:24:32,680 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:32,681 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:32,686 INFO  L256         TraceCheckSpWp]: Trace formula consists of 1053 conjuncts, 80 conjuncts are in the unsatisfiable core
[2025-05-07 17:24:32,697 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-05-07 17:24:32,828 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2025-05-07 17:24:32,828 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-05-07 17:24:34,918 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2025-05-07 17:24:34,918 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [560597689] provided 0 perfect and 2 imperfect interpolant sequences
[2025-05-07 17:24:34,918 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-05-07 17:24:34,918 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 21, 22] total 35
[2025-05-07 17:24:34,918 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995929894]
[2025-05-07 17:24:34,918 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-05-07 17:24:34,918 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 35 states
[2025-05-07 17:24:34,918 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:24:34,919 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants.
[2025-05-07 17:24:34,919 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1100, Unknown=0, NotChecked=0, Total=1190
[2025-05-07 17:24:34,919 INFO  L87              Difference]: Start difference. First operand 102 states and 118 transitions. Second operand  has 35 states, 24 states have (on average 1.8333333333333333) internal successors, (44), 30 states have internal predecessors, (44), 18 states have call successors, (28), 1 states have call predecessors, (28), 24 states have return successors, (36), 25 states have call predecessors, (36), 18 states have call successors, (36)
[2025-05-07 17:24:35,241 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:24:35,241 INFO  L93              Difference]: Finished difference Result 122 states and 154 transitions.
[2025-05-07 17:24:35,242 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2025-05-07 17:24:35,242 INFO  L79                 Accepts]: Start accepts. Automaton has  has 35 states, 24 states have (on average 1.8333333333333333) internal successors, (44), 30 states have internal predecessors, (44), 18 states have call successors, (28), 1 states have call predecessors, (28), 24 states have return successors, (36), 25 states have call predecessors, (36), 18 states have call successors, (36) Word has length 76
[2025-05-07 17:24:35,242 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:24:35,243 INFO  L225             Difference]: With dead ends: 122
[2025-05-07 17:24:35,243 INFO  L226             Difference]: Without dead ends: 122
[2025-05-07 17:24:35,243 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=118, Invalid=1442, Unknown=0, NotChecked=0, Total=1560
[2025-05-07 17:24:35,244 INFO  L437           NwaCegarLoop]: 94 mSDtfsCounter, 7 mSDsluCounter, 1910 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2025-05-07 17:24:35,244 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2004 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2025-05-07 17:24:35,245 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 122 states.
[2025-05-07 17:24:35,249 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 114.
[2025-05-07 17:24:35,250 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 114 states, 47 states have (on average 1.0425531914893618) internal successors, (49), 49 states have internal predecessors, (49), 34 states have call successors, (37), 23 states have call predecessors, (37), 32 states have return successors, (53), 41 states have call predecessors, (53), 34 states have call successors, (53)
[2025-05-07 17:24:35,250 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 139 transitions.
[2025-05-07 17:24:35,250 INFO  L79                 Accepts]: Start accepts. Automaton has 114 states and 139 transitions. Word has length 76
[2025-05-07 17:24:35,251 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:24:35,251 INFO  L485      AbstractCegarLoop]: Abstraction has 114 states and 139 transitions.
[2025-05-07 17:24:35,251 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 35 states, 24 states have (on average 1.8333333333333333) internal successors, (44), 30 states have internal predecessors, (44), 18 states have call successors, (28), 1 states have call predecessors, (28), 24 states have return successors, (36), 25 states have call predecessors, (36), 18 states have call successors, (36)
[2025-05-07 17:24:35,251 INFO  L278                IsEmpty]: Start isEmpty. Operand 114 states and 139 transitions.
[2025-05-07 17:24:35,252 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 77
[2025-05-07 17:24:35,252 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:24:35,252 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]
[2025-05-07 17:24:35,258 INFO  L552       MonitoredProcess]: [MP /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2025-05-07 17:24:35,453 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7
[2025-05-07 17:24:35,454 INFO  L403      AbstractCegarLoop]: === Iteration 8 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:24:35,455 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:24:35,455 INFO  L85        PathProgramCache]: Analyzing trace with hash -1186931293, now seen corresponding path program 1 times
[2025-05-07 17:24:35,455 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:24:35,456 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914384021]
[2025-05-07 17:24:35,456 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:35,456 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:24:35,518 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes.
[2025-05-07 17:24:35,525 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements.
[2025-05-07 17:24:35,525 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:35,525 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:35,865 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2025-05-07 17:24:35,865 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:24:35,865 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914384021]
[2025-05-07 17:24:35,865 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914384021] provided 0 perfect and 1 imperfect interpolant sequences
[2025-05-07 17:24:35,865 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974521012]
[2025-05-07 17:24:35,865 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:35,865 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-05-07 17:24:35,867 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:24:35,868 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-05-07 17:24:35,869 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2025-05-07 17:24:36,062 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes.
[2025-05-07 17:24:36,132 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements.
[2025-05-07 17:24:36,132 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:36,132 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:36,135 INFO  L256         TraceCheckSpWp]: Trace formula consists of 1042 conjuncts, 5 conjuncts are in the unsatisfiable core
[2025-05-07 17:24:36,138 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-05-07 17:24:36,192 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2025-05-07 17:24:36,192 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-05-07 17:24:36,192 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [974521012] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:24:36,192 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-05-07 17:24:36,192 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [20] total 24
[2025-05-07 17:24:36,192 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052243122]
[2025-05-07 17:24:36,192 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:24:36,192 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:24:36,192 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:24:36,193 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:24:36,193 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552
[2025-05-07 17:24:36,193 INFO  L87              Difference]: Start difference. First operand 114 states and 139 transitions. Second operand  has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20)
[2025-05-07 17:24:36,215 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:24:36,215 INFO  L93              Difference]: Finished difference Result 114 states and 137 transitions.
[2025-05-07 17:24:36,215 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:24:36,215 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) Word has length 76
[2025-05-07 17:24:36,216 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:24:36,216 INFO  L225             Difference]: With dead ends: 114
[2025-05-07 17:24:36,216 INFO  L226             Difference]: Without dead ends: 113
[2025-05-07 17:24:36,216 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552
[2025-05-07 17:24:36,217 INFO  L437           NwaCegarLoop]: 96 mSDtfsCounter, 1 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:24:36,217 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 470 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:24:36,217 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 113 states.
[2025-05-07 17:24:36,221 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113.
[2025-05-07 17:24:36,222 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 113 states, 47 states have (on average 1.0425531914893618) internal successors, (49), 49 states have internal predecessors, (49), 33 states have call successors, (36), 23 states have call predecessors, (36), 32 states have return successors, (50), 40 states have call predecessors, (50), 33 states have call successors, (50)
[2025-05-07 17:24:36,222 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 135 transitions.
[2025-05-07 17:24:36,223 INFO  L79                 Accepts]: Start accepts. Automaton has 113 states and 135 transitions. Word has length 76
[2025-05-07 17:24:36,223 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:24:36,223 INFO  L485      AbstractCegarLoop]: Abstraction has 113 states and 135 transitions.
[2025-05-07 17:24:36,223 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20)
[2025-05-07 17:24:36,223 INFO  L278                IsEmpty]: Start isEmpty. Operand 113 states and 135 transitions.
[2025-05-07 17:24:36,224 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 77
[2025-05-07 17:24:36,224 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:24:36,224 INFO  L218           NwaCegarLoop]: trace histogram [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]
[2025-05-07 17:24:36,228 INFO  L552       MonitoredProcess]: [MP /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2025-05-07 17:24:36,424 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-05-07 17:24:36,425 INFO  L403      AbstractCegarLoop]: === Iteration 9 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:24:36,425 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:24:36,425 INFO  L85        PathProgramCache]: Analyzing trace with hash 383566207, now seen corresponding path program 1 times
[2025-05-07 17:24:36,426 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:24:36,426 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287670517]
[2025-05-07 17:24:36,426 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:36,426 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:24:36,512 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes.
[2025-05-07 17:24:36,523 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements.
[2025-05-07 17:24:36,523 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:36,523 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:36,911 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2025-05-07 17:24:36,911 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:24:36,911 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287670517]
[2025-05-07 17:24:36,911 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287670517] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:24:36,911 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:24:36,911 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22
[2025-05-07 17:24:36,912 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863255215]
[2025-05-07 17:24:36,912 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:24:36,912 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2025-05-07 17:24:36,912 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:24:36,913 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2025-05-07 17:24:36,913 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462
[2025-05-07 17:24:36,913 INFO  L87              Difference]: Start difference. First operand 113 states and 135 transitions. Second operand  has 22 states, 16 states have (on average 2.0625) internal successors, (33), 19 states have internal predecessors, (33), 11 states have call successors, (21), 1 states have call predecessors, (21), 16 states have return successors, (21), 16 states have call predecessors, (21), 11 states have call successors, (21)
[2025-05-07 17:24:37,241 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:24:37,241 INFO  L93              Difference]: Finished difference Result 125 states and 159 transitions.
[2025-05-07 17:24:37,241 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2025-05-07 17:24:37,242 INFO  L79                 Accepts]: Start accepts. Automaton has  has 22 states, 16 states have (on average 2.0625) internal successors, (33), 19 states have internal predecessors, (33), 11 states have call successors, (21), 1 states have call predecessors, (21), 16 states have return successors, (21), 16 states have call predecessors, (21), 11 states have call successors, (21) Word has length 76
[2025-05-07 17:24:37,242 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:24:37,242 INFO  L225             Difference]: With dead ends: 125
[2025-05-07 17:24:37,242 INFO  L226             Difference]: Without dead ends: 124
[2025-05-07 17:24:37,243 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=641, Unknown=0, NotChecked=0, Total=702
[2025-05-07 17:24:37,243 INFO  L437           NwaCegarLoop]: 81 mSDtfsCounter, 7 mSDsluCounter, 1563 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1644 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2025-05-07 17:24:37,243 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1644 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2025-05-07 17:24:37,244 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 124 states.
[2025-05-07 17:24:37,250 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 118.
[2025-05-07 17:24:37,250 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 118 states, 48 states have (on average 1.0416666666666667) internal successors, (50), 50 states have internal predecessors, (50), 36 states have call successors, (39), 23 states have call predecessors, (39), 33 states have return successors, (58), 44 states have call predecessors, (58), 36 states have call successors, (58)
[2025-05-07 17:24:37,251 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 147 transitions.
[2025-05-07 17:24:37,251 INFO  L79                 Accepts]: Start accepts. Automaton has 118 states and 147 transitions. Word has length 76
[2025-05-07 17:24:37,251 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:24:37,251 INFO  L485      AbstractCegarLoop]: Abstraction has 118 states and 147 transitions.
[2025-05-07 17:24:37,252 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 22 states, 16 states have (on average 2.0625) internal successors, (33), 19 states have internal predecessors, (33), 11 states have call successors, (21), 1 states have call predecessors, (21), 16 states have return successors, (21), 16 states have call predecessors, (21), 11 states have call successors, (21)
[2025-05-07 17:24:37,252 INFO  L278                IsEmpty]: Start isEmpty. Operand 118 states and 147 transitions.
[2025-05-07 17:24:37,253 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 102
[2025-05-07 17:24:37,253 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:24:37,253 INFO  L218           NwaCegarLoop]: trace histogram [3, 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]
[2025-05-07 17:24:37,253 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2025-05-07 17:24:37,253 INFO  L403      AbstractCegarLoop]: === Iteration 10 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:24:37,254 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:24:37,254 INFO  L85        PathProgramCache]: Analyzing trace with hash -1416323106, now seen corresponding path program 1 times
[2025-05-07 17:24:37,254 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:24:37,254 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713769901]
[2025-05-07 17:24:37,254 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:37,254 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:24:37,286 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes.
[2025-05-07 17:24:37,301 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements.
[2025-05-07 17:24:37,301 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:37,301 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:37,819 INFO  L134       CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked.
[2025-05-07 17:24:37,819 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:24:37,819 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713769901]
[2025-05-07 17:24:37,819 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713769901] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:24:37,819 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:24:37,819 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23
[2025-05-07 17:24:37,819 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984350892]
[2025-05-07 17:24:37,819 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:24:37,820 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2025-05-07 17:24:37,820 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:24:37,820 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2025-05-07 17:24:37,821 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506
[2025-05-07 17:24:37,821 INFO  L87              Difference]: Start difference. First operand 118 states and 147 transitions. Second operand  has 23 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 20 states have internal predecessors, (35), 11 states have call successors, (23), 1 states have call predecessors, (23), 17 states have return successors, (23), 17 states have call predecessors, (23), 11 states have call successors, (23)
[2025-05-07 17:24:38,099 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:24:38,099 INFO  L93              Difference]: Finished difference Result 127 states and 165 transitions.
[2025-05-07 17:24:38,100 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. 
[2025-05-07 17:24:38,100 INFO  L79                 Accepts]: Start accepts. Automaton has  has 23 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 20 states have internal predecessors, (35), 11 states have call successors, (23), 1 states have call predecessors, (23), 17 states have return successors, (23), 17 states have call predecessors, (23), 11 states have call successors, (23) Word has length 101
[2025-05-07 17:24:38,100 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:24:38,101 INFO  L225             Difference]: With dead ends: 127
[2025-05-07 17:24:38,101 INFO  L226             Difference]: Without dead ends: 126
[2025-05-07 17:24:38,101 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=693, Unknown=0, NotChecked=0, Total=756
[2025-05-07 17:24:38,101 INFO  L437           NwaCegarLoop]: 86 mSDtfsCounter, 6 mSDsluCounter, 1740 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1826 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2025-05-07 17:24:38,102 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1826 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2025-05-07 17:24:38,102 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 126 states.
[2025-05-07 17:24:38,105 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 117.
[2025-05-07 17:24:38,106 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 117 states, 48 states have (on average 1.0416666666666667) internal successors, (50), 50 states have internal predecessors, (50), 35 states have call successors, (38), 23 states have call predecessors, (38), 33 states have return successors, (56), 43 states have call predecessors, (56), 35 states have call successors, (56)
[2025-05-07 17:24:38,106 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 144 transitions.
[2025-05-07 17:24:38,106 INFO  L79                 Accepts]: Start accepts. Automaton has 117 states and 144 transitions. Word has length 101
[2025-05-07 17:24:38,106 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:24:38,106 INFO  L485      AbstractCegarLoop]: Abstraction has 117 states and 144 transitions.
[2025-05-07 17:24:38,107 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 23 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 20 states have internal predecessors, (35), 11 states have call successors, (23), 1 states have call predecessors, (23), 17 states have return successors, (23), 17 states have call predecessors, (23), 11 states have call successors, (23)
[2025-05-07 17:24:38,107 INFO  L278                IsEmpty]: Start isEmpty. Operand 117 states and 144 transitions.
[2025-05-07 17:24:38,108 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 102
[2025-05-07 17:24:38,108 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:24:38,108 INFO  L218           NwaCegarLoop]: trace histogram [3, 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]
[2025-05-07 17:24:38,108 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2025-05-07 17:24:38,108 INFO  L403      AbstractCegarLoop]: === Iteration 11 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:24:38,109 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:24:38,109 INFO  L85        PathProgramCache]: Analyzing trace with hash -412183932, now seen corresponding path program 1 times
[2025-05-07 17:24:38,109 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:24:38,109 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125969807]
[2025-05-07 17:24:38,109 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:38,109 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:24:38,140 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes.
[2025-05-07 17:24:38,147 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements.
[2025-05-07 17:24:38,147 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:38,147 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:38,544 INFO  L134       CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2025-05-07 17:24:38,544 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:24:38,544 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125969807]
[2025-05-07 17:24:38,544 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125969807] provided 0 perfect and 1 imperfect interpolant sequences
[2025-05-07 17:24:38,544 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826745006]
[2025-05-07 17:24:38,544 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:38,544 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-05-07 17:24:38,546 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:24:38,547 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-05-07 17:24:38,548 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2025-05-07 17:24:38,861 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes.
[2025-05-07 17:24:39,024 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements.
[2025-05-07 17:24:39,024 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:39,024 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:39,028 INFO  L256         TraceCheckSpWp]: Trace formula consists of 1520 conjuncts, 5 conjuncts are in the unsatisfiable core
[2025-05-07 17:24:39,031 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-05-07 17:24:39,096 INFO  L134       CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2025-05-07 17:24:39,096 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-05-07 17:24:39,096 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [826745006] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:24:39,096 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-05-07 17:24:39,096 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [21] total 25
[2025-05-07 17:24:39,096 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344406032]
[2025-05-07 17:24:39,096 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:24:39,097 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:24:39,097 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:24:39,097 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:24:39,098 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600
[2025-05-07 17:24:39,098 INFO  L87              Difference]: Start difference. First operand 117 states and 144 transitions. Second operand  has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 5 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25)
[2025-05-07 17:24:39,115 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:24:39,115 INFO  L93              Difference]: Finished difference Result 113 states and 133 transitions.
[2025-05-07 17:24:39,115 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:24:39,115 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 5 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) Word has length 101
[2025-05-07 17:24:39,115 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:24:39,116 INFO  L225             Difference]: With dead ends: 113
[2025-05-07 17:24:39,116 INFO  L226             Difference]: Without dead ends: 104
[2025-05-07 17:24:39,116 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600
[2025-05-07 17:24:39,116 INFO  L437           NwaCegarLoop]: 104 mSDtfsCounter, 1 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:24:39,117 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 501 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:24:39,117 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 104 states.
[2025-05-07 17:24:39,119 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104.
[2025-05-07 17:24:39,119 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 104 states, 43 states have (on average 1.0465116279069768) internal successors, (45), 45 states have internal predecessors, (45), 31 states have call successors, (33), 22 states have call predecessors, (33), 29 states have return successors, (44), 36 states have call predecessors, (44), 31 states have call successors, (44)
[2025-05-07 17:24:39,120 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 122 transitions.
[2025-05-07 17:24:39,120 INFO  L79                 Accepts]: Start accepts. Automaton has 104 states and 122 transitions. Word has length 101
[2025-05-07 17:24:39,120 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:24:39,120 INFO  L485      AbstractCegarLoop]: Abstraction has 104 states and 122 transitions.
[2025-05-07 17:24:39,120 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 5 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25)
[2025-05-07 17:24:39,120 INFO  L278                IsEmpty]: Start isEmpty. Operand 104 states and 122 transitions.
[2025-05-07 17:24:39,121 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 102
[2025-05-07 17:24:39,121 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:24:39,121 INFO  L218           NwaCegarLoop]: trace histogram [3, 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]
[2025-05-07 17:24:39,126 INFO  L552       MonitoredProcess]: [MP /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2025-05-07 17:24:39,321 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-05-07 17:24:39,322 INFO  L403      AbstractCegarLoop]: === Iteration 12 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:24:39,322 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:24:39,323 INFO  L85        PathProgramCache]: Analyzing trace with hash 359881506, now seen corresponding path program 1 times
[2025-05-07 17:24:39,323 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:24:39,323 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369257330]
[2025-05-07 17:24:39,323 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:39,324 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:24:39,396 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes.
[2025-05-07 17:24:39,404 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements.
[2025-05-07 17:24:39,404 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:39,404 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:39,894 INFO  L134       CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2025-05-07 17:24:39,894 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:24:39,894 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369257330]
[2025-05-07 17:24:39,894 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369257330] provided 0 perfect and 1 imperfect interpolant sequences
[2025-05-07 17:24:39,894 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509406474]
[2025-05-07 17:24:39,894 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:39,894 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-05-07 17:24:39,896 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:24:39,897 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-05-07 17:24:39,898 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2025-05-07 17:24:40,117 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes.
[2025-05-07 17:24:40,215 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements.
[2025-05-07 17:24:40,215 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:40,215 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:40,220 INFO  L256         TraceCheckSpWp]: Trace formula consists of 1529 conjuncts, 94 conjuncts are in the unsatisfiable core
[2025-05-07 17:24:40,223 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-05-07 17:24:40,279 INFO  L134       CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2025-05-07 17:24:40,279 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-05-07 17:24:41,859 INFO  L134       CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2025-05-07 17:24:41,860 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509406474] provided 0 perfect and 2 imperfect interpolant sequences
[2025-05-07 17:24:41,860 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-05-07 17:24:41,860 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 27] total 43
[2025-05-07 17:24:41,860 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765283512]
[2025-05-07 17:24:41,860 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-05-07 17:24:41,861 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 43 states
[2025-05-07 17:24:41,861 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:24:41,861 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants.
[2025-05-07 17:24:41,861 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1696, Unknown=0, NotChecked=0, Total=1806
[2025-05-07 17:24:41,861 INFO  L87              Difference]: Start difference. First operand 104 states and 122 transitions. Second operand  has 43 states, 31 states have (on average 1.8709677419354838) internal successors, (58), 38 states have internal predecessors, (58), 23 states have call successors, (38), 1 states have call predecessors, (38), 31 states have return successors, (48), 32 states have call predecessors, (48), 23 states have call successors, (48)
[2025-05-07 17:24:42,339 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:24:42,339 INFO  L93              Difference]: Finished difference Result 111 states and 136 transitions.
[2025-05-07 17:24:42,339 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. 
[2025-05-07 17:24:42,340 INFO  L79                 Accepts]: Start accepts. Automaton has  has 43 states, 31 states have (on average 1.8709677419354838) internal successors, (58), 38 states have internal predecessors, (58), 23 states have call successors, (38), 1 states have call predecessors, (38), 31 states have return successors, (48), 32 states have call predecessors, (48), 23 states have call successors, (48) Word has length 101
[2025-05-07 17:24:42,340 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:24:42,341 INFO  L225             Difference]: With dead ends: 111
[2025-05-07 17:24:42,341 INFO  L226             Difference]: Without dead ends: 110
[2025-05-07 17:24:42,341 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=144, Invalid=2208, Unknown=0, NotChecked=0, Total=2352
[2025-05-07 17:24:42,342 INFO  L437           NwaCegarLoop]: 84 mSDtfsCounter, 8 mSDsluCounter, 2341 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2025-05-07 17:24:42,342 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2425 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2025-05-07 17:24:42,342 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 110 states.
[2025-05-07 17:24:42,344 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 102.
[2025-05-07 17:24:42,344 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 102 states, 42 states have (on average 1.0476190476190477) internal successors, (44), 44 states have internal predecessors, (44), 31 states have call successors, (33), 22 states have call predecessors, (33), 28 states have return successors, (42), 35 states have call predecessors, (42), 31 states have call successors, (42)
[2025-05-07 17:24:42,345 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 119 transitions.
[2025-05-07 17:24:42,345 INFO  L79                 Accepts]: Start accepts. Automaton has 102 states and 119 transitions. Word has length 101
[2025-05-07 17:24:42,346 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:24:42,346 INFO  L485      AbstractCegarLoop]: Abstraction has 102 states and 119 transitions.
[2025-05-07 17:24:42,346 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 43 states, 31 states have (on average 1.8709677419354838) internal successors, (58), 38 states have internal predecessors, (58), 23 states have call successors, (38), 1 states have call predecessors, (38), 31 states have return successors, (48), 32 states have call predecessors, (48), 23 states have call successors, (48)
[2025-05-07 17:24:42,346 INFO  L278                IsEmpty]: Start isEmpty. Operand 102 states and 119 transitions.
[2025-05-07 17:24:42,346 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 102
[2025-05-07 17:24:42,346 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:24:42,347 INFO  L218           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 17:24:42,351 INFO  L552       MonitoredProcess]: [MP /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2025-05-07 17:24:42,547 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2025-05-07 17:24:42,548 INFO  L403      AbstractCegarLoop]: === Iteration 13 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:24:42,548 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:24:42,548 INFO  L85        PathProgramCache]: Analyzing trace with hash -2075692006, now seen corresponding path program 1 times
[2025-05-07 17:24:42,549 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:24:42,549 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736699624]
[2025-05-07 17:24:42,549 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:42,549 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:24:42,614 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes.
[2025-05-07 17:24:42,620 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements.
[2025-05-07 17:24:42,620 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:42,620 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:42,975 INFO  L134       CoverageAnalysis]: Checked inductivity of 59 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked.
[2025-05-07 17:24:42,975 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:24:42,975 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736699624]
[2025-05-07 17:24:42,975 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736699624] provided 0 perfect and 1 imperfect interpolant sequences
[2025-05-07 17:24:42,975 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938420090]
[2025-05-07 17:24:42,975 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:24:42,975 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-05-07 17:24:42,978 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:24:42,979 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-05-07 17:24:42,980 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2025-05-07 17:24:43,300 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes.
[2025-05-07 17:24:43,433 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements.
[2025-05-07 17:24:43,433 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:24:43,433 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:24:43,437 INFO  L256         TraceCheckSpWp]: Trace formula consists of 1427 conjuncts, 5 conjuncts are in the unsatisfiable core
[2025-05-07 17:24:43,439 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-05-07 17:24:43,494 INFO  L134       CoverageAnalysis]: Checked inductivity of 59 backedges. 42 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2025-05-07 17:24:43,494 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-05-07 17:24:43,932 INFO  L134       CoverageAnalysis]: Checked inductivity of 59 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked.
[2025-05-07 17:24:43,932 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [938420090] provided 0 perfect and 2 imperfect interpolant sequences
[2025-05-07 17:24:43,933 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-05-07 17:24:43,933 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 6, 6] total 23
[2025-05-07 17:24:43,933 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377656989]
[2025-05-07 17:24:43,933 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-05-07 17:24:43,933 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2025-05-07 17:24:43,934 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:24:43,934 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2025-05-07 17:24:43,934 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506
[2025-05-07 17:24:43,935 INFO  L87              Difference]: Start difference. First operand 102 states and 119 transitions. Second operand  has 23 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 21 states have internal predecessors, (59), 12 states have call successors, (36), 2 states have call predecessors, (36), 18 states have return successors, (47), 19 states have call predecessors, (47), 12 states have call successors, (47)
[2025-05-07 17:24:44,159 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:24:44,160 INFO  L93              Difference]: Finished difference Result 103 states and 121 transitions.
[2025-05-07 17:24:44,160 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. 
[2025-05-07 17:24:44,160 INFO  L79                 Accepts]: Start accepts. Automaton has  has 23 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 21 states have internal predecessors, (59), 12 states have call successors, (36), 2 states have call predecessors, (36), 18 states have return successors, (47), 19 states have call predecessors, (47), 12 states have call successors, (47) Word has length 101
[2025-05-07 17:24:44,160 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:24:44,160 INFO  L225             Difference]: With dead ends: 103
[2025-05-07 17:24:44,160 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:24:44,161 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 201 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=850, Unknown=0, NotChecked=0, Total=930
[2025-05-07 17:24:44,161 INFO  L437           NwaCegarLoop]: 78 mSDtfsCounter, 8 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1648 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2025-05-07 17:24:44,161 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1648 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2025-05-07 17:24:44,161 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:24:44,161 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:24:44,161 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 17:24:44,162 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:24:44,162 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 101
[2025-05-07 17:24:44,162 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:24:44,162 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:24:44,162 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 23 states, 18 states have (on average 3.2777777777777777) internal successors, (59), 21 states have internal predecessors, (59), 12 states have call successors, (36), 2 states have call predecessors, (36), 18 states have return successors, (47), 19 states have call predecessors, (47), 12 states have call successors, (47)
[2025-05-07 17:24:44,162 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:24:44,162 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:24:44,163 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:24:44,170 INFO  L552       MonitoredProcess]: [MP /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2025-05-07 17:24:44,364 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,6 /usr/bin/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-05-07 17:24:44,373 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:24:44,378 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:24:44,386 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:24:44 BoogieIcfgContainer
[2025-05-07 17:24:44,386 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:24:44,388 INFO  L158              Benchmark]: Toolchain (without parser) took 16907.36ms. Allocated memory was 234.9MB in the beginning and 352.3MB in the end (delta: 117.4MB). Free memory was 141.3MB in the beginning and 159.8MB in the end (delta: -18.4MB). Peak memory consumption was 113.2MB. Max. memory is 33.6GB.
[2025-05-07 17:24:44,388 INFO  L158              Benchmark]: SmtParser took 0.18ms. Allocated memory is still 234.9MB. Free memory is still 172.5MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:24:44,389 INFO  L158              Benchmark]: ChcToBoogie took 48.01ms. Allocated memory is still 234.9MB. Free memory was 141.2MB in the beginning and 137.4MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:24:44,389 INFO  L158              Benchmark]: Boogie Preprocessor took 66.57ms. Allocated memory is still 234.9MB. Free memory was 137.3MB in the beginning and 133.7MB in the end (delta: 3.6MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:24:44,390 INFO  L158              Benchmark]: RCFGBuilder took 460.03ms. Allocated memory is still 234.9MB. Free memory was 133.7MB in the beginning and 159.1MB in the end (delta: -25.4MB). Peak memory consumption was 26.5MB. Max. memory is 33.6GB.
[2025-05-07 17:24:44,390 INFO  L158              Benchmark]: TraceAbstraction took 16328.62ms. Allocated memory was 234.9MB in the beginning and 352.3MB in the end (delta: 117.4MB). Free memory was 158.6MB in the beginning and 159.8MB in the end (delta: -1.2MB). Peak memory consumption was 103.4MB. Max. memory is 33.6GB.
[2025-05-07 17:24:44,393 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.18ms. Allocated memory is still 234.9MB. Free memory is still 172.5MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 48.01ms. Allocated memory is still 234.9MB. Free memory was 141.2MB in the beginning and 137.4MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 66.57ms. Allocated memory is still 234.9MB. Free memory was 137.3MB in the beginning and 133.7MB in the end (delta: 3.6MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * RCFGBuilder took 460.03ms. Allocated memory is still 234.9MB. Free memory was 133.7MB in the beginning and 159.1MB in the end (delta: -25.4MB). Peak memory consumption was 26.5MB. Max. memory is 33.6GB.
 * TraceAbstraction took 16328.62ms. Allocated memory was 234.9MB in the beginning and 352.3MB in the end (delta: 117.4MB). Free memory was 158.6MB in the beginning and 159.8MB in the end (delta: -1.2MB). Peak memory consumption was 103.4MB. 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 27 procedures, 104 locations, 160 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.3s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 143 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62 mSDsluCounter, 17714 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16534 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4355 IncrementalHoareTripleChecker+Invalid, 4390 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 1180 mSDtfsCounter, 4355 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1041 GetRequests, 734 SyntacticMatches, 4 SemanticMatches, 303 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=9, InterpolantAutomatonStates: 218, 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, 13 MinimizatonAttempts, 53 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 9.3s InterpolantComputationTime, 1443 NumberOfCodeBlocks, 1443 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1700 ConstructedInterpolants, 0 QuantifiedInterpolants, 3481 SizeOfPredicates, 25 NumberOfNonLiveVariables, 6571 ConjunctsInSsa, 189 ConjunctsInUnsatCore, 21 InterpolantComputations, 10 PerfectInterpolantSequences, 351/433 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 17:24:44,413 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
