./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/inheritance/constructor_state_variable_init_chain.sol_0_no_adts_000.smt2 .


--------------------------------------------------------------------------------


This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:28:43,003 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:28:43,041 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b0ff72-3d3f-4a78-a103-baed208b7b80/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:28:43,044 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:28:43,044 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:28:43,057 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:28:43,057 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:28:43,057 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:28:43,057 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:28:43,057 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:28:43,058 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:28:43,058 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:28:43,058 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:28:43,058 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:28:43,058 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:28:43,058 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:28:43,058 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:28:43,058 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:28:43,058 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:28:43,058 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:28:43,058 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:28:43,058 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:28:43,058 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:28:43,059 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:28:43,059 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:28:43,059 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:28:43,059 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:28:43,239 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:28:43,245 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:28:43,246 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:28:43,247 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:28:43,247 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:28:43,248 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b0ff72-3d3f-4a78-a103-baed208b7b80/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/inheritance/constructor_state_variable_init_chain.sol_0_no_adts_000.smt2
[2025-05-07 17:28:43,249 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:28:43,251 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:28:43,461 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b0ff72-3d3f-4a78-a103-baed208b7b80/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/inheritance/constructor_state_variable_init_chain.sol_0_no_adts_000.smt2
[2025-05-07 17:28:43,463 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:28:43,464 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:28:43,464 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:28:43,464 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:28:43,465 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:28:43,466 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:28:43" (1/1) ...
[2025-05-07 17:28:43,493 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:43 Unit
[2025-05-07 17:28:43,493 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:28:43,494 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:28:43,494 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:28:43,494 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:28:43,505 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:43" (1/1) ...
[2025-05-07 17:28:43,506 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:43" (1/1) ...
[2025-05-07 17:28:43,527 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:43" (1/1) ...
[2025-05-07 17:28:43,527 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:43" (1/1) ...
[2025-05-07 17:28:43,532 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:43" (1/1) ...
[2025-05-07 17:28:43,533 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:43" (1/1) ...
[2025-05-07 17:28:43,534 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:43" (1/1) ...
[2025-05-07 17:28:43,536 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:43" (1/1) ...
[2025-05-07 17:28:43,537 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:43" (1/1) ...
[2025-05-07 17:28:43,548 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:28:43,548 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:28:43,548 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:28:43,548 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:28:43,549 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:43" (1/1) ...
[2025-05-07 17:28:43,551 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:28:43,559 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:28:43,568 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 17:28:43,570 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 17:28:43,578 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:28:43,578 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:28:43,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:28:43,578 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_3_0 given in one single declaration
[2025-05-07 17:28:43,578 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_3_0
[2025-05-07 17:28:43,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_3_0
[2025-05-07 17:28:43,578 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_14_D_45_0 given in one single declaration
[2025-05-07 17:28:43,578 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_14_D_45_0
[2025-05-07 17:28:43,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_14_D_45_0
[2025-05-07 17:28:43,578 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_59_C_26_0 given in one single declaration
[2025-05-07 17:28:43,578 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_59_C_26_0
[2025-05-07 17:28:43,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_59_C_26_0
[2025-05-07 17:28:43,578 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_61_C_26_0 given in one single declaration
[2025-05-07 17:28:43,579 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_61_C_26_0
[2025-05-07 17:28:43,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_61_C_26_0
[2025-05-07 17:28:43,579 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_60_C_26_0 given in one single declaration
[2025-05-07 17:28:43,579 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_60_C_26_0
[2025-05-07 17:28:43,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_60_C_26_0
[2025-05-07 17:28:43,579 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_16_constructor_25_45_0 given in one single declaration
[2025-05-07 17:28:43,579 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_16_constructor_25_45_0
[2025-05-07 17:28:43,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_16_constructor_25_45_0
[2025-05-07 17:28:43,579 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_58_return_constructor_25_45_0 given in one single declaration
[2025-05-07 17:28:43,579 INFO  L130     BoogieDeclarations]: Found specification of procedure block_58_return_constructor_25_45_0
[2025-05-07 17:28:43,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_58_return_constructor_25_45_0
[2025-05-07 17:28:43,579 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_57__24_45_0 given in one single declaration
[2025-05-07 17:28:43,579 INFO  L130     BoogieDeclarations]: Found specification of procedure block_57__24_45_0
[2025-05-07 17:28:43,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_57__24_45_0
[2025-05-07 17:28:43,579 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_56_constructor_25_45_0 given in one single declaration
[2025-05-07 17:28:43,579 INFO  L130     BoogieDeclarations]: Found specification of procedure block_56_constructor_25_45_0
[2025-05-07 17:28:43,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_56_constructor_25_45_0
[2025-05-07 17:28:43,579 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_68_A_4_0 given in one single declaration
[2025-05-07 17:28:43,579 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_68_A_4_0
[2025-05-07 17:28:43,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_68_A_4_0
[2025-05-07 17:28:43,580 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_70_A_4_0 given in one single declaration
[2025-05-07 17:28:43,580 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_70_A_4_0
[2025-05-07 17:28:43,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_70_A_4_0
[2025-05-07 17:28:43,580 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_69_A_4_0 given in one single declaration
[2025-05-07 17:28:43,580 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_69_A_4_0
[2025-05-07 17:28:43,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_69_A_4_0
[2025-05-07 17:28:43,580 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_71_D_45_0 given in one single declaration
[2025-05-07 17:28:43,580 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_71_D_45_0
[2025-05-07 17:28:43,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_71_D_45_0
[2025-05-07 17:28:43,580 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_65_B_15_0 given in one single declaration
[2025-05-07 17:28:43,580 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_65_B_15_0
[2025-05-07 17:28:43,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_65_B_15_0
[2025-05-07 17:28:43,580 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_15_constructor_14_45_0 given in one single declaration
[2025-05-07 17:28:43,580 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_15_constructor_14_45_0
[2025-05-07 17:28:43,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_15_constructor_14_45_0
[2025-05-07 17:28:43,580 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_64_return_constructor_14_45_0 given in one single declaration
[2025-05-07 17:28:43,580 INFO  L130     BoogieDeclarations]: Found specification of procedure block_64_return_constructor_14_45_0
[2025-05-07 17:28:43,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_64_return_constructor_14_45_0
[2025-05-07 17:28:43,580 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_63__13_45_0 given in one single declaration
[2025-05-07 17:28:43,581 INFO  L130     BoogieDeclarations]: Found specification of procedure block_63__13_45_0
[2025-05-07 17:28:43,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_63__13_45_0
[2025-05-07 17:28:43,581 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_62_constructor_14_45_0 given in one single declaration
[2025-05-07 17:28:43,581 INFO  L130     BoogieDeclarations]: Found specification of procedure block_62_constructor_14_45_0
[2025-05-07 17:28:43,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_62_constructor_14_45_0
[2025-05-07 17:28:43,581 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_67_B_15_0 given in one single declaration
[2025-05-07 17:28:43,581 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_67_B_15_0
[2025-05-07 17:28:43,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_67_B_15_0
[2025-05-07 17:28:43,581 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_66_B_15_0 given in one single declaration
[2025-05-07 17:28:43,581 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_66_B_15_0
[2025-05-07 17:28:43,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_66_B_15_0
[2025-05-07 17:28:43,581 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_53_D_45_0 given in one single declaration
[2025-05-07 17:28:43,581 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_53_D_45_0
[2025-05-07 17:28:43,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_53_D_45_0
[2025-05-07 17:28:43,581 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_55_D_45_0 given in one single declaration
[2025-05-07 17:28:43,581 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_55_D_45_0
[2025-05-07 17:28:43,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_55_D_45_0
[2025-05-07 17:28:43,581 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_54_D_45_0 given in one single declaration
[2025-05-07 17:28:43,581 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_54_D_45_0
[2025-05-07 17:28:43,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_54_D_45_0
[2025-05-07 17:28:43,582 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_17_constructor_44_45_0 given in one single declaration
[2025-05-07 17:28:43,582 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_17_constructor_44_45_0
[2025-05-07 17:28:43,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_17_constructor_44_45_0
[2025-05-07 17:28:43,582 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_52_constructor_44_45_0 given in one single declaration
[2025-05-07 17:28:43,582 INFO  L130     BoogieDeclarations]: Found specification of procedure block_52_constructor_44_45_0
[2025-05-07 17:28:43,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_52_constructor_44_45_0
[2025-05-07 17:28:43,582 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_49__43_45_0 given in one single declaration
[2025-05-07 17:28:43,582 INFO  L130     BoogieDeclarations]: Found specification of procedure block_49__43_45_0
[2025-05-07 17:28:43,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_49__43_45_0
[2025-05-07 17:28:43,582 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_48_constructor_44_45_0 given in one single declaration
[2025-05-07 17:28:43,582 INFO  L130     BoogieDeclarations]: Found specification of procedure block_48_constructor_44_45_0
[2025-05-07 17:28:43,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_48_constructor_44_45_0
[2025-05-07 17:28:43,582 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_50_return_constructor_44_45_0 given in one single declaration
[2025-05-07 17:28:43,582 INFO  L130     BoogieDeclarations]: Found specification of procedure block_50_return_constructor_44_45_0
[2025-05-07 17:28:43,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_50_return_constructor_44_45_0
[2025-05-07 17:28:43,582 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_51_constructor_44_45_0 given in one single declaration
[2025-05-07 17:28:43,582 INFO  L130     BoogieDeclarations]: Found specification of procedure block_51_constructor_44_45_0
[2025-05-07 17:28:43,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_51_constructor_44_45_0
[2025-05-07 17:28:43,582 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:28:43,582 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:28:43,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:28:43,732 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:28:43,733 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:28:43,984 INFO  L?                        ?]: Removed 269 outVars from TransFormulas that were not future-live.
[2025-05-07 17:28:43,984 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:28:43,996 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:28:43,996 INFO  L312             CfgBuilder]: Removed 13 assume(true) statements.
[2025-05-07 17:28:43,997 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:28:43 BoogieIcfgContainer
[2025-05-07 17:28:43,997 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:28:43,998 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:28:43,998 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:28:44,001 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:28:44,001 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:28:43" (1/3) ...
[2025-05-07 17:28:44,001 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b7d94b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:28:44, skipping insertion in model container
[2025-05-07 17:28:44,001 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:43" (2/3) ...
[2025-05-07 17:28:44,001 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b7d94b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:28:44, skipping insertion in model container
[2025-05-07 17:28:44,001 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:28:43" (3/3) ...
[2025-05-07 17:28:44,002 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:28:44,013 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:28:44,014 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 31 procedures, 133 locations, 215 edges, 31 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:28:44,043 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:28:44,050 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;@5dad1ceb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:28:44,050 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:28:44,053 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 133 states, 51 states have (on average 1.1568627450980393) internal successors, (59), 59 states have internal predecessors, (59), 50 states have call successors, (52), 30 states have call predecessors, (52), 30 states have return successors, (52), 43 states have call predecessors, (52), 50 states have call successors, (52)
[2025-05-07 17:28:44,060 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2025-05-07 17:28:44,060 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:44,061 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]
[2025-05-07 17:28:44,061 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:44,064 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:44,064 INFO  L85        PathProgramCache]: Analyzing trace with hash -1034119924, now seen corresponding path program 1 times
[2025-05-07 17:28:44,069 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:44,070 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826031653]
[2025-05-07 17:28:44,070 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:44,070 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:44,096 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes.
[2025-05-07 17:28:44,128 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements.
[2025-05-07 17:28:44,129 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:44,129 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:44,272 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 17:28:44,273 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:44,273 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826031653]
[2025-05-07 17:28:44,273 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826031653] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:44,273 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:44,276 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:28:44,277 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850785573]
[2025-05-07 17:28:44,278 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:44,282 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:28:44,282 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:44,303 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:28:44,316 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:28:44,318 INFO  L87              Difference]: Start difference. First operand  has 133 states, 51 states have (on average 1.1568627450980393) internal successors, (59), 59 states have internal predecessors, (59), 50 states have call successors, (52), 30 states have call predecessors, (52), 30 states have return successors, (52), 43 states have call predecessors, (52), 50 states have call successors, (52) Second operand  has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 3 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7)
[2025-05-07 17:28:44,448 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:44,449 INFO  L93              Difference]: Finished difference Result 132 states and 160 transitions.
[2025-05-07 17:28:44,450 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:28:44,451 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 3 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 27
[2025-05-07 17:28:44,452 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:44,460 INFO  L225             Difference]: With dead ends: 132
[2025-05-07 17:28:44,460 INFO  L226             Difference]: Without dead ends: 131
[2025-05-07 17:28:44,462 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:28:44,465 INFO  L437           NwaCegarLoop]: 151 mSDtfsCounter, 1 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:44,466 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 729 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:28:44,480 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 131 states.
[2025-05-07 17:28:44,506 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129.
[2025-05-07 17:28:44,507 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 129 states, 50 states have (on average 1.12) internal successors, (56), 56 states have internal predecessors, (56), 48 states have call successors, (50), 30 states have call predecessors, (50), 30 states have return successors, (50), 42 states have call predecessors, (50), 48 states have call successors, (50)
[2025-05-07 17:28:44,513 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 156 transitions.
[2025-05-07 17:28:44,514 INFO  L79                 Accepts]: Start accepts. Automaton has 129 states and 156 transitions. Word has length 27
[2025-05-07 17:28:44,514 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:44,515 INFO  L485      AbstractCegarLoop]: Abstraction has 129 states and 156 transitions.
[2025-05-07 17:28:44,515 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 3 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7)
[2025-05-07 17:28:44,515 INFO  L278                IsEmpty]: Start isEmpty. Operand 129 states and 156 transitions.
[2025-05-07 17:28:44,517 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2025-05-07 17:28:44,518 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:44,518 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:44,518 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:28:44,518 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:44,519 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:44,519 INFO  L85        PathProgramCache]: Analyzing trace with hash 93714478, now seen corresponding path program 1 times
[2025-05-07 17:28:44,519 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:44,519 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770390245]
[2025-05-07 17:28:44,519 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:44,519 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:44,555 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes.
[2025-05-07 17:28:44,593 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements.
[2025-05-07 17:28:44,594 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:44,594 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:44,736 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 17:28:44,736 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:44,737 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770390245]
[2025-05-07 17:28:44,737 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770390245] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:44,737 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:44,737 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:28:44,737 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811438482]
[2025-05-07 17:28:44,737 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:44,738 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:28:44,738 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:44,739 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:28:44,739 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:28:44,739 INFO  L87              Difference]: Start difference. First operand 129 states and 156 transitions. Second operand  has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 4 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:28:44,789 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:44,789 INFO  L93              Difference]: Finished difference Result 129 states and 155 transitions.
[2025-05-07 17:28:44,789 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:28:44,790 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 4 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) Word has length 52
[2025-05-07 17:28:44,790 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:44,791 INFO  L225             Difference]: With dead ends: 129
[2025-05-07 17:28:44,792 INFO  L226             Difference]: Without dead ends: 127
[2025-05-07 17:28:44,792 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:28:44,793 INFO  L437           NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:44,793 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 744 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:44,794 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 127 states.
[2025-05-07 17:28:44,801 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127.
[2025-05-07 17:28:44,801 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 127 states, 50 states have (on average 1.1) internal successors, (55), 55 states have internal predecessors, (55), 46 states have call successors, (48), 30 states have call predecessors, (48), 30 states have return successors, (48), 41 states have call predecessors, (48), 46 states have call successors, (48)
[2025-05-07 17:28:44,802 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 151 transitions.
[2025-05-07 17:28:44,802 INFO  L79                 Accepts]: Start accepts. Automaton has 127 states and 151 transitions. Word has length 52
[2025-05-07 17:28:44,803 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:44,803 INFO  L485      AbstractCegarLoop]: Abstraction has 127 states and 151 transitions.
[2025-05-07 17:28:44,803 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 4 states have call successors, (14), 1 states have call predecessors, (14), 5 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:28:44,803 INFO  L278                IsEmpty]: Start isEmpty. Operand 127 states and 151 transitions.
[2025-05-07 17:28:44,806 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2025-05-07 17:28:44,806 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:44,806 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:44,806 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:28:44,806 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:44,806 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:44,806 INFO  L85        PathProgramCache]: Analyzing trace with hash 401694258, now seen corresponding path program 1 times
[2025-05-07 17:28:44,806 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:44,806 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354230680]
[2025-05-07 17:28:44,806 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:44,807 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:44,831 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes.
[2025-05-07 17:28:44,839 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements.
[2025-05-07 17:28:44,840 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:44,840 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:44,910 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 17:28:44,911 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:44,911 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354230680]
[2025-05-07 17:28:44,911 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354230680] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:44,911 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:44,911 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:28:44,911 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160464486]
[2025-05-07 17:28:44,911 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:44,911 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:28:44,911 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:44,912 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:28:44,912 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:44,912 INFO  L87              Difference]: Start difference. First operand 127 states and 151 transitions. Second operand  has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:28:44,951 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:44,951 INFO  L93              Difference]: Finished difference Result 128 states and 150 transitions.
[2025-05-07 17:28:44,952 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:28:44,952 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 52
[2025-05-07 17:28:44,952 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:44,953 INFO  L225             Difference]: With dead ends: 128
[2025-05-07 17:28:44,953 INFO  L226             Difference]: Without dead ends: 126
[2025-05-07 17:28:44,954 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 17:28:44,954 INFO  L437           NwaCegarLoop]: 144 mSDtfsCounter, 1 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:44,955 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 411 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:44,955 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 126 states.
[2025-05-07 17:28:44,963 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 124.
[2025-05-07 17:28:44,963 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 124 states, 50 states have (on average 1.08) internal successors, (54), 54 states have internal predecessors, (54), 43 states have call successors, (45), 30 states have call predecessors, (45), 30 states have return successors, (45), 39 states have call predecessors, (45), 43 states have call successors, (45)
[2025-05-07 17:28:44,964 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions.
[2025-05-07 17:28:44,965 INFO  L79                 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 52
[2025-05-07 17:28:44,965 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:44,965 INFO  L485      AbstractCegarLoop]: Abstraction has 124 states and 144 transitions.
[2025-05-07 17:28:44,965 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:28:44,965 INFO  L278                IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions.
[2025-05-07 17:28:44,967 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2025-05-07 17:28:44,968 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:44,968 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:44,968 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:28:44,968 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:44,968 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:44,968 INFO  L85        PathProgramCache]: Analyzing trace with hash -906266132, now seen corresponding path program 1 times
[2025-05-07 17:28:44,969 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:44,969 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840123107]
[2025-05-07 17:28:44,969 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:44,969 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:45,002 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes.
[2025-05-07 17:28:45,025 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements.
[2025-05-07 17:28:45,025 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:45,025 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:45,193 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 17:28:45,194 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:45,194 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840123107]
[2025-05-07 17:28:45,194 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840123107] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:45,194 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:45,194 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2025-05-07 17:28:45,194 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824665802]
[2025-05-07 17:28:45,194 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:45,195 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-05-07 17:28:45,195 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:45,195 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-05-07 17:28:45,195 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:28:45,195 INFO  L87              Difference]: Start difference. First operand 124 states and 144 transitions. Second operand  has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 5 states have call successors, (28), 1 states have call predecessors, (28), 6 states have return successors, (28), 6 states have call predecessors, (28), 5 states have call successors, (28)
[2025-05-07 17:28:45,251 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:45,251 INFO  L93              Difference]: Finished difference Result 140 states and 171 transitions.
[2025-05-07 17:28:45,252 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2025-05-07 17:28:45,252 INFO  L79                 Accepts]: Start accepts. Automaton has  has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 5 states have call successors, (28), 1 states have call predecessors, (28), 6 states have return successors, (28), 6 states have call predecessors, (28), 5 states have call successors, (28) Word has length 102
[2025-05-07 17:28:45,253 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:45,254 INFO  L225             Difference]: With dead ends: 140
[2025-05-07 17:28:45,254 INFO  L226             Difference]: Without dead ends: 120
[2025-05-07 17:28:45,254 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:28:45,255 INFO  L437           NwaCegarLoop]: 157 mSDtfsCounter, 1 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:45,255 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 918 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:45,256 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 120 states.
[2025-05-07 17:28:45,263 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120.
[2025-05-07 17:28:45,263 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 120 states, 48 states have (on average 1.0833333333333333) internal successors, (52), 52 states have internal predecessors, (52), 42 states have call successors, (43), 29 states have call predecessors, (43), 29 states have return successors, (43), 38 states have call predecessors, (43), 42 states have call successors, (43)
[2025-05-07 17:28:45,264 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 138 transitions.
[2025-05-07 17:28:45,265 INFO  L79                 Accepts]: Start accepts. Automaton has 120 states and 138 transitions. Word has length 102
[2025-05-07 17:28:45,265 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:45,265 INFO  L485      AbstractCegarLoop]: Abstraction has 120 states and 138 transitions.
[2025-05-07 17:28:45,266 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 5 states have call successors, (28), 1 states have call predecessors, (28), 6 states have return successors, (28), 6 states have call predecessors, (28), 5 states have call successors, (28)
[2025-05-07 17:28:45,266 INFO  L278                IsEmpty]: Start isEmpty. Operand 120 states and 138 transitions.
[2025-05-07 17:28:45,267 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2025-05-07 17:28:45,267 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:45,267 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:45,267 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-05-07 17:28:45,267 INFO  L403      AbstractCegarLoop]: === Iteration 5 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:45,267 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:45,268 INFO  L85        PathProgramCache]: Analyzing trace with hash -179349587, now seen corresponding path program 1 times
[2025-05-07 17:28:45,268 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:45,268 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206678727]
[2025-05-07 17:28:45,268 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:45,268 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:45,312 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes.
[2025-05-07 17:28:45,316 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements.
[2025-05-07 17:28:45,316 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:45,317 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:45,390 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 17:28:45,390 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:45,390 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206678727]
[2025-05-07 17:28:45,390 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206678727] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:45,390 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:45,390 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:28:45,390 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089779557]
[2025-05-07 17:28:45,391 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:45,391 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:28:45,391 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:45,391 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:28:45,391 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:45,391 INFO  L87              Difference]: Start difference. First operand 120 states and 138 transitions. Second operand  has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (28), 1 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28)
[2025-05-07 17:28:45,399 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:45,399 INFO  L93              Difference]: Finished difference Result 122 states and 139 transitions.
[2025-05-07 17:28:45,399 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:28:45,400 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (28), 1 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 102
[2025-05-07 17:28:45,400 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:45,400 INFO  L225             Difference]: With dead ends: 122
[2025-05-07 17:28:45,401 INFO  L226             Difference]: Without dead ends: 115
[2025-05-07 17:28:45,401 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 17:28:45,401 INFO  L437           NwaCegarLoop]: 139 mSDtfsCounter, 1 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:45,401 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 404 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:45,402 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 115 states.
[2025-05-07 17:28:45,405 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115.
[2025-05-07 17:28:45,405 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 115 states, 48 states have (on average 1.0625) internal successors, (51), 51 states have internal predecessors, (51), 37 states have call successors, (38), 29 states have call predecessors, (38), 29 states have return successors, (38), 34 states have call predecessors, (38), 37 states have call successors, (38)
[2025-05-07 17:28:45,406 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 127 transitions.
[2025-05-07 17:28:45,406 INFO  L79                 Accepts]: Start accepts. Automaton has 115 states and 127 transitions. Word has length 102
[2025-05-07 17:28:45,406 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:45,406 INFO  L485      AbstractCegarLoop]: Abstraction has 115 states and 127 transitions.
[2025-05-07 17:28:45,406 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (28), 1 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28)
[2025-05-07 17:28:45,406 INFO  L278                IsEmpty]: Start isEmpty. Operand 115 states and 127 transitions.
[2025-05-07 17:28:45,407 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2025-05-07 17:28:45,407 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:45,407 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:45,407 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-05-07 17:28:45,407 INFO  L403      AbstractCegarLoop]: === Iteration 6 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:45,408 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:45,408 INFO  L85        PathProgramCache]: Analyzing trace with hash -1751545806, now seen corresponding path program 1 times
[2025-05-07 17:28:45,408 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:45,408 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678437839]
[2025-05-07 17:28:45,408 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:45,408 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:45,443 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes.
[2025-05-07 17:28:45,445 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements.
[2025-05-07 17:28:45,445 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:45,446 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:45,521 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 17:28:45,521 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:45,521 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678437839]
[2025-05-07 17:28:45,521 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678437839] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:45,521 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:45,522 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:28:45,522 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31040565]
[2025-05-07 17:28:45,522 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:45,522 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:28:45,522 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:45,523 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:28:45,523 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:45,523 INFO  L87              Difference]: Start difference. First operand 115 states and 127 transitions. Second operand  has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (28), 1 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28)
[2025-05-07 17:28:45,540 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:45,540 INFO  L93              Difference]: Finished difference Result 117 states and 128 transitions.
[2025-05-07 17:28:45,540 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:28:45,540 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (28), 1 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 102
[2025-05-07 17:28:45,541 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:45,541 INFO  L225             Difference]: With dead ends: 117
[2025-05-07 17:28:45,541 INFO  L226             Difference]: Without dead ends: 113
[2025-05-07 17:28:45,541 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 17:28:45,542 INFO  L437           NwaCegarLoop]: 127 mSDtfsCounter, 1 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:45,542 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 362 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:45,543 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 113 states.
[2025-05-07 17:28:45,545 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113.
[2025-05-07 17:28:45,546 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 113 states, 48 states have (on average 1.0416666666666667) internal successors, (50), 50 states have internal predecessors, (50), 35 states have call successors, (36), 29 states have call predecessors, (36), 29 states have return successors, (36), 33 states have call predecessors, (36), 35 states have call successors, (36)
[2025-05-07 17:28:45,546 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 122 transitions.
[2025-05-07 17:28:45,546 INFO  L79                 Accepts]: Start accepts. Automaton has 113 states and 122 transitions. Word has length 102
[2025-05-07 17:28:45,546 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:45,547 INFO  L485      AbstractCegarLoop]: Abstraction has 113 states and 122 transitions.
[2025-05-07 17:28:45,547 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (28), 1 states have call predecessors, (28), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28)
[2025-05-07 17:28:45,547 INFO  L278                IsEmpty]: Start isEmpty. Operand 113 states and 122 transitions.
[2025-05-07 17:28:45,547 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2025-05-07 17:28:45,547 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:45,547 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:45,548 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-05-07 17:28:45,548 INFO  L403      AbstractCegarLoop]: === Iteration 7 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:45,548 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:45,548 INFO  L85        PathProgramCache]: Analyzing trace with hash 578406040, now seen corresponding path program 1 times
[2025-05-07 17:28:45,548 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:45,548 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127213749]
[2025-05-07 17:28:45,548 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:45,548 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:45,582 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes.
[2025-05-07 17:28:45,595 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements.
[2025-05-07 17:28:45,595 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:45,595 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:45,662 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 17:28:45,662 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:45,662 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127213749]
[2025-05-07 17:28:45,662 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127213749] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:45,662 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:45,662 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:28:45,662 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629633527]
[2025-05-07 17:28:45,662 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:45,663 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:28:45,663 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:45,663 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:28:45,663 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:45,664 INFO  L87              Difference]: Start difference. First operand 113 states and 122 transitions. Second operand  has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (28), 1 states have call predecessors, (28), 3 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28)
[2025-05-07 17:28:45,680 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:45,680 INFO  L93              Difference]: Finished difference Result 115 states and 124 transitions.
[2025-05-07 17:28:45,680 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:28:45,680 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (28), 1 states have call predecessors, (28), 3 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28) Word has length 102
[2025-05-07 17:28:45,680 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:45,681 INFO  L225             Difference]: With dead ends: 115
[2025-05-07 17:28:45,681 INFO  L226             Difference]: Without dead ends: 115
[2025-05-07 17:28:45,681 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 17:28:45,682 INFO  L437           NwaCegarLoop]: 123 mSDtfsCounter, 1 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:45,682 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 350 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:45,682 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 115 states.
[2025-05-07 17:28:45,685 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115.
[2025-05-07 17:28:45,685 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 115 states, 49 states have (on average 1.0408163265306123) internal successors, (51), 51 states have internal predecessors, (51), 35 states have call successors, (36), 29 states have call predecessors, (36), 30 states have return successors, (37), 34 states have call predecessors, (37), 35 states have call successors, (37)
[2025-05-07 17:28:45,686 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 124 transitions.
[2025-05-07 17:28:45,686 INFO  L79                 Accepts]: Start accepts. Automaton has 115 states and 124 transitions. Word has length 102
[2025-05-07 17:28:45,686 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:45,686 INFO  L485      AbstractCegarLoop]: Abstraction has 115 states and 124 transitions.
[2025-05-07 17:28:45,686 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (28), 1 states have call predecessors, (28), 3 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28)
[2025-05-07 17:28:45,686 INFO  L278                IsEmpty]: Start isEmpty. Operand 115 states and 124 transitions.
[2025-05-07 17:28:45,687 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2025-05-07 17:28:45,687 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:45,687 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:45,687 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2025-05-07 17:28:45,687 INFO  L403      AbstractCegarLoop]: === Iteration 8 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:45,688 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:45,688 INFO  L85        PathProgramCache]: Analyzing trace with hash 1763032110, now seen corresponding path program 1 times
[2025-05-07 17:28:45,688 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:45,688 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773428287]
[2025-05-07 17:28:45,688 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:45,688 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:45,723 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes.
[2025-05-07 17:28:45,741 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements.
[2025-05-07 17:28:45,741 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:45,741 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:45,874 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 17:28:45,874 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:45,874 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773428287]
[2025-05-07 17:28:45,874 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773428287] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:45,874 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:45,874 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2025-05-07 17:28:45,874 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459591386]
[2025-05-07 17:28:45,874 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:45,875 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-05-07 17:28:45,875 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:45,875 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-05-07 17:28:45,875 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:28:45,876 INFO  L87              Difference]: Start difference. First operand 115 states and 124 transitions. Second operand  has 7 states, 5 states have (on average 9.2) internal successors, (46), 7 states have internal predecessors, (46), 5 states have call successors, (28), 1 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28)
[2025-05-07 17:28:45,935 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:45,935 INFO  L93              Difference]: Finished difference Result 117 states and 125 transitions.
[2025-05-07 17:28:45,935 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2025-05-07 17:28:45,936 INFO  L79                 Accepts]: Start accepts. Automaton has  has 7 states, 5 states have (on average 9.2) internal successors, (46), 7 states have internal predecessors, (46), 5 states have call successors, (28), 1 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) Word has length 102
[2025-05-07 17:28:45,936 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:45,936 INFO  L225             Difference]: With dead ends: 117
[2025-05-07 17:28:45,936 INFO  L226             Difference]: Without dead ends: 111
[2025-05-07 17:28:45,937 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:28:45,937 INFO  L437           NwaCegarLoop]: 118 mSDtfsCounter, 2 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:45,938 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 691 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:45,938 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 111 states.
[2025-05-07 17:28:45,942 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111.
[2025-05-07 17:28:45,942 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 111 states, 47 states have (on average 1.0425531914893618) internal successors, (49), 49 states have internal predecessors, (49), 34 states have call successors, (34), 28 states have call predecessors, (34), 29 states have return successors, (35), 33 states have call predecessors, (35), 34 states have call successors, (35)
[2025-05-07 17:28:45,943 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 118 transitions.
[2025-05-07 17:28:45,944 INFO  L79                 Accepts]: Start accepts. Automaton has 111 states and 118 transitions. Word has length 102
[2025-05-07 17:28:45,944 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:45,944 INFO  L485      AbstractCegarLoop]: Abstraction has 111 states and 118 transitions.
[2025-05-07 17:28:45,944 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 5 states have (on average 9.2) internal successors, (46), 7 states have internal predecessors, (46), 5 states have call successors, (28), 1 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28)
[2025-05-07 17:28:45,944 INFO  L278                IsEmpty]: Start isEmpty. Operand 111 states and 118 transitions.
[2025-05-07 17:28:45,945 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2025-05-07 17:28:45,945 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:45,945 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:45,946 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2025-05-07 17:28:45,946 INFO  L403      AbstractCegarLoop]: === Iteration 9 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:45,946 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:45,946 INFO  L85        PathProgramCache]: Analyzing trace with hash 316951060, now seen corresponding path program 1 times
[2025-05-07 17:28:45,946 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:45,946 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553064436]
[2025-05-07 17:28:45,946 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:45,946 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:45,982 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes.
[2025-05-07 17:28:45,998 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements.
[2025-05-07 17:28:45,999 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:45,999 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:46,332 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 17:28:46,332 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:46,332 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553064436]
[2025-05-07 17:28:46,332 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553064436] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:46,332 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:46,332 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14
[2025-05-07 17:28:46,332 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343702799]
[2025-05-07 17:28:46,332 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:46,333 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2025-05-07 17:28:46,333 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:46,334 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2025-05-07 17:28:46,334 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182
[2025-05-07 17:28:46,334 INFO  L87              Difference]: Start difference. First operand 111 states and 118 transitions. Second operand  has 14 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 7 states have call successors, (28), 1 states have call predecessors, (28), 11 states have return successors, (28), 12 states have call predecessors, (28), 7 states have call successors, (28)
[2025-05-07 17:28:46,466 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:46,466 INFO  L93              Difference]: Finished difference Result 111 states and 117 transitions.
[2025-05-07 17:28:46,466 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2025-05-07 17:28:46,466 INFO  L79                 Accepts]: Start accepts. Automaton has  has 14 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 7 states have call successors, (28), 1 states have call predecessors, (28), 11 states have return successors, (28), 12 states have call predecessors, (28), 7 states have call successors, (28) Word has length 102
[2025-05-07 17:28:46,467 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:46,467 INFO  L225             Difference]: With dead ends: 111
[2025-05-07 17:28:46,467 INFO  L226             Difference]: Without dead ends: 82
[2025-05-07 17:28:46,468 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240
[2025-05-07 17:28:46,468 INFO  L437           NwaCegarLoop]: 105 mSDtfsCounter, 2 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:46,468 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1331 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:28:46,469 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 82 states.
[2025-05-07 17:28:46,471 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80.
[2025-05-07 17:28:46,471 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 80 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 36 states have internal predecessors, (36), 23 states have call successors, (23), 21 states have call predecessors, (23), 21 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23)
[2025-05-07 17:28:46,472 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 82 transitions.
[2025-05-07 17:28:46,472 INFO  L79                 Accepts]: Start accepts. Automaton has 80 states and 82 transitions. Word has length 102
[2025-05-07 17:28:46,472 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:46,472 INFO  L485      AbstractCegarLoop]: Abstraction has 80 states and 82 transitions.
[2025-05-07 17:28:46,472 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 7 states have call successors, (28), 1 states have call predecessors, (28), 11 states have return successors, (28), 12 states have call predecessors, (28), 7 states have call successors, (28)
[2025-05-07 17:28:46,472 INFO  L278                IsEmpty]: Start isEmpty. Operand 80 states and 82 transitions.
[2025-05-07 17:28:46,473 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2025-05-07 17:28:46,473 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:46,473 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:46,473 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2025-05-07 17:28:46,473 INFO  L403      AbstractCegarLoop]: === Iteration 10 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:46,473 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:46,473 INFO  L85        PathProgramCache]: Analyzing trace with hash -1992872260, now seen corresponding path program 1 times
[2025-05-07 17:28:46,474 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:46,474 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659662284]
[2025-05-07 17:28:46,474 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:46,474 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:46,494 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes.
[2025-05-07 17:28:46,504 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements.
[2025-05-07 17:28:46,504 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:46,504 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:46,551 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 17:28:46,552 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:46,552 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659662284]
[2025-05-07 17:28:46,552 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659662284] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:46,552 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:46,552 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:28:46,552 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837740705]
[2025-05-07 17:28:46,552 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:46,552 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:28:46,553 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:46,553 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:28:46,553 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:46,553 INFO  L87              Difference]: Start difference. First operand 80 states and 82 transitions. Second operand  has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 4 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21)
[2025-05-07 17:28:46,566 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:46,567 INFO  L93              Difference]: Finished difference Result 82 states and 83 transitions.
[2025-05-07 17:28:46,567 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:28:46,567 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 4 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 77
[2025-05-07 17:28:46,568 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:46,568 INFO  L225             Difference]: With dead ends: 82
[2025-05-07 17:28:46,568 INFO  L226             Difference]: Without dead ends: 78
[2025-05-07 17:28:46,568 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 17:28:46,569 INFO  L437           NwaCegarLoop]: 81 mSDtfsCounter, 1 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:46,569 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 231 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:46,570 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 78 states.
[2025-05-07 17:28:46,571 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78.
[2025-05-07 17:28:46,572 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 78 states, 35 states have (on average 1.0) internal successors, (35), 35 states have internal predecessors, (35), 21 states have call successors, (21), 21 states have call predecessors, (21), 21 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21)
[2025-05-07 17:28:46,572 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 77 transitions.
[2025-05-07 17:28:46,573 INFO  L79                 Accepts]: Start accepts. Automaton has 78 states and 77 transitions. Word has length 77
[2025-05-07 17:28:46,573 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:46,573 INFO  L485      AbstractCegarLoop]: Abstraction has 78 states and 77 transitions.
[2025-05-07 17:28:46,573 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 4 states have call successors, (21), 1 states have call predecessors, (21), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21)
[2025-05-07 17:28:46,573 INFO  L278                IsEmpty]: Start isEmpty. Operand 78 states and 77 transitions.
[2025-05-07 17:28:46,574 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2025-05-07 17:28:46,574 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:46,574 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:46,574 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2025-05-07 17:28:46,574 INFO  L403      AbstractCegarLoop]: === Iteration 11 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:46,574 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:46,574 INFO  L85        PathProgramCache]: Analyzing trace with hash -1594701504, now seen corresponding path program 1 times
[2025-05-07 17:28:46,574 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:46,574 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574269483]
[2025-05-07 17:28:46,575 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:46,575 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:46,597 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes.
[2025-05-07 17:28:46,608 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements.
[2025-05-07 17:28:46,608 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:46,608 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:46,678 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 17:28:46,678 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:46,678 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574269483]
[2025-05-07 17:28:46,678 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574269483] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:46,678 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:46,678 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:28:46,678 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679746889]
[2025-05-07 17:28:46,678 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:46,679 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:28:46,679 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:46,679 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:28:46,679 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:28:46,679 INFO  L87              Difference]: Start difference. First operand 78 states and 77 transitions. Second operand  has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (21), 1 states have call predecessors, (21), 5 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21)
[2025-05-07 17:28:46,700 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:46,700 INFO  L93              Difference]: Finished difference Result 57 states and 56 transitions.
[2025-05-07 17:28:46,700 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:28:46,700 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (21), 1 states have call predecessors, (21), 5 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 77
[2025-05-07 17:28:46,701 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:46,701 INFO  L225             Difference]: With dead ends: 57
[2025-05-07 17:28:46,701 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:28:46,701 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:28:46,701 INFO  L437           NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:46,702 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 260 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:46,702 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:28:46,702 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:28:46,702 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 17:28:46,702 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:28:46,702 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 77
[2025-05-07 17:28:46,702 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:46,702 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:28:46,703 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (21), 1 states have call predecessors, (21), 5 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21)
[2025-05-07 17:28:46,703 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:28:46,703 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:28:46,705 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:28:46,705 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2025-05-07 17:28:46,708 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:46,710 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:28:46,712 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:28:46 BoogieIcfgContainer
[2025-05-07 17:28:46,712 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:28:46,713 INFO  L158              Benchmark]: Toolchain (without parser) took 3248.94ms. Allocated memory was 234.9MB in the beginning and 285.2MB in the end (delta: 50.3MB). Free memory was 147.1MB in the beginning and 190.5MB in the end (delta: -43.4MB). Peak memory consumption was 13.6MB. Max. memory is 33.6GB.
[2025-05-07 17:28:46,713 INFO  L158              Benchmark]: SmtParser took 0.19ms. Allocated memory is still 234.9MB. Free memory is still 172.8MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:46,713 INFO  L158              Benchmark]: ChcToBoogie took 29.18ms. Allocated memory is still 234.9MB. Free memory was 147.0MB in the beginning and 144.2MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:46,713 INFO  L158              Benchmark]: Boogie Preprocessor took 53.78ms. Allocated memory is still 234.9MB. Free memory was 144.2MB in the beginning and 140.7MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:46,714 INFO  L158              Benchmark]: RCFGBuilder took 448.56ms. Allocated memory is still 234.9MB. Free memory was 140.7MB in the beginning and 169.4MB in the end (delta: -28.6MB). Peak memory consumption was 43.3MB. Max. memory is 33.6GB.
[2025-05-07 17:28:46,714 INFO  L158              Benchmark]: TraceAbstraction took 2714.20ms. Allocated memory was 234.9MB in the beginning and 285.2MB in the end (delta: 50.3MB). Free memory was 168.5MB in the beginning and 190.5MB in the end (delta: -21.9MB). Peak memory consumption was 37.4MB. Max. memory is 33.6GB.
[2025-05-07 17:28:46,715 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.19ms. Allocated memory is still 234.9MB. Free memory is still 172.8MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 29.18ms. Allocated memory is still 234.9MB. Free memory was 147.0MB in the beginning and 144.2MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 53.78ms. Allocated memory is still 234.9MB. Free memory was 144.2MB in the beginning and 140.7MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 448.56ms. Allocated memory is still 234.9MB. Free memory was 140.7MB in the beginning and 169.4MB in the end (delta: -28.6MB). Peak memory consumption was 43.3MB. Max. memory is 33.6GB.
 * TraceAbstraction took 2714.20ms. Allocated memory was 234.9MB in the beginning and 285.2MB in the end (delta: 50.3MB). Free memory was 168.5MB in the beginning and 190.5MB in the end (delta: -21.9MB). Peak memory consumption was 37.4MB. 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 31 procedures, 133 locations, 215 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 6431 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5080 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 304 IncrementalHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 1351 mSDtfsCounter, 304 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=0, InterpolantAutomatonStates: 66, 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, 11 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 897 NumberOfCodeBlocks, 897 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 886 ConstructedInterpolants, 0 QuantifiedInterpolants, 1118 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 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 17:28:46,727 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
