./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/inheritance/base_contract_assertion_fail_8.sol_1_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:27:57,836 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:27:57,891 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1439ed22-1efd-40cb-b1a4-08f8294e5e62/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:27:57,895 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:27:57,895 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:27:57,914 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:27:57,915 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:27:57,915 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:27:57,915 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:27:57,915 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:27:57,916 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:27:57,916 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:27:57,916 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:27:57,916 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:27:57,916 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:27:57,916 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:27:57,916 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:27:57,916 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:27:57,917 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:57,917 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:27:57,917 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:27:57,917 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:27:57,917 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:27:57,917 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:27:57,917 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:27:57,918 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:27:57,918 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:27:58,131 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:27:58,137 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:27:58,138 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:27:58,139 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:27:58,139 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:27:58,140 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1439ed22-1efd-40cb-b1a4-08f8294e5e62/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/inheritance/base_contract_assertion_fail_8.sol_1_no_adts_000.smt2
[2025-05-07 17:27:58,141 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:27:58,144 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:27:58,412 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1439ed22-1efd-40cb-b1a4-08f8294e5e62/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/inheritance/base_contract_assertion_fail_8.sol_1_no_adts_000.smt2
[2025-05-07 17:27:58,415 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:27:58,416 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:27:58,417 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:27:58,417 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:27:58,417 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:27:58,419 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:58" (1/1) ...
[2025-05-07 17:27:58,454 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:58 Unit
[2025-05-07 17:27:58,454 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:27:58,455 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:27:58,455 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:27:58,455 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:27:58,470 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:58" (1/1) ...
[2025-05-07 17:27:58,470 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:58" (1/1) ...
[2025-05-07 17:27:58,490 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:58" (1/1) ...
[2025-05-07 17:27:58,491 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:58" (1/1) ...
[2025-05-07 17:27:58,494 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:58" (1/1) ...
[2025-05-07 17:27:58,495 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:58" (1/1) ...
[2025-05-07 17:27:58,497 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:58" (1/1) ...
[2025-05-07 17:27:58,498 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:58" (1/1) ...
[2025-05-07 17:27:58,499 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:58" (1/1) ...
[2025-05-07 17:27:58,509 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:27:58,509 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:27:58,509 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:27:58,509 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:27:58,510 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:58" (1/1) ...
[2025-05-07 17:27:58,512 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:27:58,521 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:27:58,529 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2025-05-07 17:27:58,531 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-05-07 17:27:58,538 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:27:58,538 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:27:58,538 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:27:58,538 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_5_0 given in one single declaration
[2025-05-07 17:27:58,539 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_5_0
[2025-05-07 17:27:58,539 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_5_0
[2025-05-07 17:27:58,539 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_11_function_g__30_31_0 given in one single declaration
[2025-05-07 17:27:58,539 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_11_function_g__30_31_0
[2025-05-07 17:27:58,539 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_11_function_g__30_31_0
[2025-05-07 17:27:58,539 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_10_function_g__30_31_0 given in one single declaration
[2025-05-07 17:27:58,539 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_10_function_g__30_31_0
[2025-05-07 17:27:58,539 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_10_function_g__30_31_0
[2025-05-07 17:27:58,539 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_27_return_function_g__30_31_0 given in one single declaration
[2025-05-07 17:27:58,539 INFO  L130     BoogieDeclarations]: Found specification of procedure block_27_return_function_g__30_31_0
[2025-05-07 17:27:58,539 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_27_return_function_g__30_31_0
[2025-05-07 17:27:58,539 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_28_function_f__12_31_0 given in one single declaration
[2025-05-07 17:27:58,539 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_28_function_f__12_31_0
[2025-05-07 17:27:58,539 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_28_function_f__12_31_0
[2025-05-07 17:27:58,539 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_8_function_f__12_31_0 given in one single declaration
[2025-05-07 17:27:58,539 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_8_function_f__12_31_0
[2025-05-07 17:27:58,539 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_8_function_f__12_31_0
[2025-05-07 17:27:58,540 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_23_function_f__12_31_0 given in one single declaration
[2025-05-07 17:27:58,540 INFO  L130     BoogieDeclarations]: Found specification of procedure block_23_function_f__12_31_0
[2025-05-07 17:27:58,540 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_23_function_f__12_31_0
[2025-05-07 17:27:58,540 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_21_f_11_31_0 given in one single declaration
[2025-05-07 17:27:58,540 INFO  L130     BoogieDeclarations]: Found specification of procedure block_21_f_11_31_0
[2025-05-07 17:27:58,540 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_21_f_11_31_0
[2025-05-07 17:27:58,540 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_20_function_f__12_31_0 given in one single declaration
[2025-05-07 17:27:58,540 INFO  L130     BoogieDeclarations]: Found specification of procedure block_20_function_f__12_31_0
[2025-05-07 17:27:58,540 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_20_function_f__12_31_0
[2025-05-07 17:27:58,540 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_22_return_function_f__12_31_0 given in one single declaration
[2025-05-07 17:27:58,540 INFO  L130     BoogieDeclarations]: Found specification of procedure block_22_return_function_f__12_31_0
[2025-05-07 17:27:58,540 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_22_return_function_f__12_31_0
[2025-05-07 17:27:58,540 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_26_g_29_31_0 given in one single declaration
[2025-05-07 17:27:58,540 INFO  L130     BoogieDeclarations]: Found specification of procedure block_26_g_29_31_0
[2025-05-07 17:27:58,540 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_26_g_29_31_0
[2025-05-07 17:27:58,540 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_25_function_g__30_31_0 given in one single declaration
[2025-05-07 17:27:58,540 INFO  L130     BoogieDeclarations]: Found specification of procedure block_25_function_g__30_31_0
[2025-05-07 17:27:58,540 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_25_function_g__30_31_0
[2025-05-07 17:27:58,540 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_29_function_g__30_31_0 given in one single declaration
[2025-05-07 17:27:58,540 INFO  L130     BoogieDeclarations]: Found specification of procedure block_29_function_g__30_31_0
[2025-05-07 17:27:58,541 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_29_function_g__30_31_0
[2025-05-07 17:27:58,541 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_9_function_f__12_31_0 given in one single declaration
[2025-05-07 17:27:58,541 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_9_function_f__12_31_0
[2025-05-07 17:27:58,541 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_9_function_f__12_31_0
[2025-05-07 17:27:58,541 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_24_function_f__12_31_0 given in one single declaration
[2025-05-07 17:27:58,541 INFO  L130     BoogieDeclarations]: Found specification of procedure block_24_function_f__12_31_0
[2025-05-07 17:27:58,541 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_24_function_f__12_31_0
[2025-05-07 17:27:58,541 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_5_C_31_0 given in one single declaration
[2025-05-07 17:27:58,541 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_5_C_31_0
[2025-05-07 17:27:58,541 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_5_C_31_0
[2025-05-07 17:27:58,541 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_7_C_31_0 given in one single declaration
[2025-05-07 17:27:58,541 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_7_C_31_0
[2025-05-07 17:27:58,541 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_7_C_31_0
[2025-05-07 17:27:58,541 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_30_C_31_0 given in one single declaration
[2025-05-07 17:27:58,541 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_30_C_31_0
[2025-05-07 17:27:58,541 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_30_C_31_0
[2025-05-07 17:27:58,541 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_32_C_31_0 given in one single declaration
[2025-05-07 17:27:58,541 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_32_C_31_0
[2025-05-07 17:27:58,541 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_32_C_31_0
[2025-05-07 17:27:58,541 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_31_C_31_0 given in one single declaration
[2025-05-07 17:27:58,541 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_31_C_31_0
[2025-05-07 17:27:58,541 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_31_C_31_0
[2025-05-07 17:27:58,542 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_33_A_13_0 given in one single declaration
[2025-05-07 17:27:58,542 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_33_A_13_0
[2025-05-07 17:27:58,542 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_33_A_13_0
[2025-05-07 17:27:58,542 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_35_A_13_0 given in one single declaration
[2025-05-07 17:27:58,542 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_35_A_13_0
[2025-05-07 17:27:58,542 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_35_A_13_0
[2025-05-07 17:27:58,542 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_34_A_13_0 given in one single declaration
[2025-05-07 17:27:58,542 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_34_A_13_0
[2025-05-07 17:27:58,542 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_34_A_13_0
[2025-05-07 17:27:58,542 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_36_C_31_0 given in one single declaration
[2025-05-07 17:27:58,542 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_36_C_31_0
[2025-05-07 17:27:58,542 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_36_C_31_0
[2025-05-07 17:27:58,542 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:27:58,542 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:27:58,542 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:27:58,678 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:27:58,680 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:27:58,913 INFO  L?                        ?]: Removed 211 outVars from TransFormulas that were not future-live.
[2025-05-07 17:27:58,914 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:27:58,925 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:27:58,925 INFO  L312             CfgBuilder]: Removed 13 assume(true) statements.
[2025-05-07 17:27:58,926 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:58 BoogieIcfgContainer
[2025-05-07 17:27:58,926 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:27:58,928 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:27:58,928 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:27:58,931 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:27:58,932 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:27:58" (1/3) ...
[2025-05-07 17:27:58,932 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58ba0a94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:27:58, skipping insertion in model container
[2025-05-07 17:27:58,932 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:27:58" (2/3) ...
[2025-05-07 17:27:58,932 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58ba0a94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:27:58, skipping insertion in model container
[2025-05-07 17:27:58,932 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:27:58" (3/3) ...
[2025-05-07 17:27:58,934 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:27:58,947 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:27:58,950 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 26 procedures, 105 locations, 164 edges, 26 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:27:58,979 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:27:58,987 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;@1f6385d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:27:58,987 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:27:58,990 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 105 states, 41 states have (on average 1.146341463414634) internal successors, (47), 47 states have internal predecessors, (47), 38 states have call successors, (39), 25 states have call predecessors, (39), 25 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39)
[2025-05-07 17:27:58,997 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-05-07 17:27:58,997 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:58,997 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:27:58,998 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:59,001 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:59,001 INFO  L85        PathProgramCache]: Analyzing trace with hash -1504287617, now seen corresponding path program 1 times
[2025-05-07 17:27:59,006 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:59,006 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986432448]
[2025-05-07 17:27:59,007 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:59,007 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:59,041 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-05-07 17:27:59,058 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-05-07 17:27:59,059 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:59,059 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:59,256 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:59,256 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:59,256 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986432448]
[2025-05-07 17:27:59,257 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986432448] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:59,257 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:59,259 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:27:59,260 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749121471]
[2025-05-07 17:27:59,260 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:59,263 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:27:59,263 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:59,281 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:27:59,282 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:59,296 INFO  L87              Difference]: Start difference. First operand  has 105 states, 41 states have (on average 1.146341463414634) internal successors, (47), 47 states have internal predecessors, (47), 38 states have call successors, (39), 25 states have call predecessors, (39), 25 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) Second operand  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:27:59,337 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:59,338 INFO  L93              Difference]: Finished difference Result 107 states and 129 transitions.
[2025-05-07 17:27:59,339 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:27:59,344 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 51
[2025-05-07 17:27:59,345 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:59,353 INFO  L225             Difference]: With dead ends: 107
[2025-05-07 17:27:59,353 INFO  L226             Difference]: Without dead ends: 100
[2025-05-07 17:27:59,354 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:27:59,356 INFO  L437           NwaCegarLoop]: 123 mSDtfsCounter, 1 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:59,357 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 358 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:59,368 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 100 states.
[2025-05-07 17:27:59,386 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 98.
[2025-05-07 17:27:59,387 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 98 states, 40 states have (on average 1.075) internal successors, (43), 43 states have internal predecessors, (43), 33 states have call successors, (34), 25 states have call predecessors, (34), 25 states have return successors, (34), 29 states have call predecessors, (34), 33 states have call successors, (34)
[2025-05-07 17:27:59,390 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 111 transitions.
[2025-05-07 17:27:59,391 INFO  L79                 Accepts]: Start accepts. Automaton has 98 states and 111 transitions. Word has length 51
[2025-05-07 17:27:59,391 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:59,391 INFO  L485      AbstractCegarLoop]: Abstraction has 98 states and 111 transitions.
[2025-05-07 17:27:59,392 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 4 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14)
[2025-05-07 17:27:59,392 INFO  L278                IsEmpty]: Start isEmpty. Operand 98 states and 111 transitions.
[2025-05-07 17:27:59,393 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2025-05-07 17:27:59,393 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:59,394 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]
[2025-05-07 17:27:59,394 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:27:59,394 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:59,394 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:59,395 INFO  L85        PathProgramCache]: Analyzing trace with hash 1563030459, now seen corresponding path program 1 times
[2025-05-07 17:27:59,395 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:59,395 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118254355]
[2025-05-07 17:27:59,395 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:59,395 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:59,426 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes.
[2025-05-07 17:27:59,456 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements.
[2025-05-07 17:27:59,456 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:59,456 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:59,575 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:59,575 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:59,575 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118254355]
[2025-05-07 17:27:59,575 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118254355] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:59,575 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:59,575 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:27:59,575 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989403170]
[2025-05-07 17:27:59,575 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:59,576 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:27:59,576 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:59,576 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:27:59,576 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:59,577 INFO  L87              Difference]: Start difference. First operand 98 states and 111 transitions. Second operand  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (17), 1 states have call predecessors, (17), 5 states have return successors, (17), 6 states have call predecessors, (17), 3 states have call successors, (17)
[2025-05-07 17:27:59,624 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:59,624 INFO  L93              Difference]: Finished difference Result 102 states and 116 transitions.
[2025-05-07 17:27:59,625 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:27:59,625 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (17), 1 states have call predecessors, (17), 5 states have return successors, (17), 6 states have call predecessors, (17), 3 states have call successors, (17) Word has length 61
[2025-05-07 17:27:59,625 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:59,626 INFO  L225             Difference]: With dead ends: 102
[2025-05-07 17:27:59,626 INFO  L226             Difference]: Without dead ends: 102
[2025-05-07 17:27:59,627 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:27:59,627 INFO  L437           NwaCegarLoop]: 108 mSDtfsCounter, 1 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:59,627 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 526 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:27:59,628 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 102 states.
[2025-05-07 17:27:59,633 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102.
[2025-05-07 17:27:59,634 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 102 states, 42 states have (on average 1.0714285714285714) internal successors, (45), 45 states have internal predecessors, (45), 33 states have call successors, (34), 25 states have call predecessors, (34), 27 states have return successors, (37), 31 states have call predecessors, (37), 33 states have call successors, (37)
[2025-05-07 17:27:59,635 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 116 transitions.
[2025-05-07 17:27:59,635 INFO  L79                 Accepts]: Start accepts. Automaton has 102 states and 116 transitions. Word has length 61
[2025-05-07 17:27:59,636 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:59,636 INFO  L485      AbstractCegarLoop]: Abstraction has 102 states and 116 transitions.
[2025-05-07 17:27:59,636 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 3 states have call successors, (17), 1 states have call predecessors, (17), 5 states have return successors, (17), 6 states have call predecessors, (17), 3 states have call successors, (17)
[2025-05-07 17:27:59,636 INFO  L278                IsEmpty]: Start isEmpty. Operand 102 states and 116 transitions.
[2025-05-07 17:27:59,637 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2025-05-07 17:27:59,637 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:59,637 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]
[2025-05-07 17:27:59,637 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:27:59,638 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:59,638 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:59,638 INFO  L85        PathProgramCache]: Analyzing trace with hash -662767619, now seen corresponding path program 1 times
[2025-05-07 17:27:59,638 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:59,638 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813749826]
[2025-05-07 17:27:59,638 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:59,638 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:59,665 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes.
[2025-05-07 17:27:59,678 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements.
[2025-05-07 17:27:59,678 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:59,678 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:27:59,795 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-05-07 17:27:59,795 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:27:59,795 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813749826]
[2025-05-07 17:27:59,795 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813749826] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:27:59,795 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:27:59,795 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:27:59,796 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028185027]
[2025-05-07 17:27:59,796 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:27:59,796 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:27:59,796 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:27:59,796 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:27:59,796 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:27:59,797 INFO  L87              Difference]: Start difference. First operand 102 states and 116 transitions. Second operand  has 8 states, 6 states have (on average 4.5) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (17), 1 states have call predecessors, (17), 6 states have return successors, (17), 7 states have call predecessors, (17), 4 states have call successors, (17)
[2025-05-07 17:27:59,871 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:27:59,871 INFO  L93              Difference]: Finished difference Result 102 states and 115 transitions.
[2025-05-07 17:27:59,871 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:27:59,871 INFO  L79                 Accepts]: Start accepts. Automaton has  has 8 states, 6 states have (on average 4.5) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (17), 1 states have call predecessors, (17), 6 states have return successors, (17), 7 states have call predecessors, (17), 4 states have call successors, (17) Word has length 61
[2025-05-07 17:27:59,871 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:27:59,872 INFO  L225             Difference]: With dead ends: 102
[2025-05-07 17:27:59,872 INFO  L226             Difference]: Without dead ends: 100
[2025-05-07 17:27:59,872 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2025-05-07 17:27:59,873 INFO  L437           NwaCegarLoop]: 109 mSDtfsCounter, 2 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:27:59,873 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 740 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:27:59,874 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 100 states.
[2025-05-07 17:27:59,877 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96.
[2025-05-07 17:27:59,877 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 96 states, 40 states have (on average 1.05) internal successors, (42), 42 states have internal predecessors, (42), 31 states have call successors, (32), 25 states have call predecessors, (32), 25 states have return successors, (32), 28 states have call predecessors, (32), 31 states have call successors, (32)
[2025-05-07 17:27:59,878 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 106 transitions.
[2025-05-07 17:27:59,878 INFO  L79                 Accepts]: Start accepts. Automaton has 96 states and 106 transitions. Word has length 61
[2025-05-07 17:27:59,878 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:27:59,878 INFO  L485      AbstractCegarLoop]: Abstraction has 96 states and 106 transitions.
[2025-05-07 17:27:59,878 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 6 states have (on average 4.5) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (17), 1 states have call predecessors, (17), 6 states have return successors, (17), 7 states have call predecessors, (17), 4 states have call successors, (17)
[2025-05-07 17:27:59,878 INFO  L278                IsEmpty]: Start isEmpty. Operand 96 states and 106 transitions.
[2025-05-07 17:27:59,880 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 76
[2025-05-07 17:27:59,880 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:27:59,880 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]
[2025-05-07 17:27:59,880 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:27:59,880 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:27:59,880 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:27:59,880 INFO  L85        PathProgramCache]: Analyzing trace with hash 1703531182, now seen corresponding path program 1 times
[2025-05-07 17:27:59,880 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:27:59,880 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468453801]
[2025-05-07 17:27:59,880 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:27:59,880 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:27:59,910 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes.
[2025-05-07 17:27:59,935 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements.
[2025-05-07 17:27:59,935 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:27:59,935 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:00,063 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 17:28:00,063 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:00,064 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468453801]
[2025-05-07 17:28:00,064 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468453801] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:00,064 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:00,064 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:28:00,064 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51869513]
[2025-05-07 17:28:00,064 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:00,064 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:28:00,065 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:00,065 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:28:00,065 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:28:00,065 INFO  L87              Difference]: Start difference. First operand 96 states and 106 transitions. Second operand  has 8 states, 6 states have (on average 5.5) internal successors, (33), 8 states have internal predecessors, (33), 4 states have call successors, (21), 1 states have call predecessors, (21), 6 states have return successors, (21), 7 states have call predecessors, (21), 4 states have call successors, (21)
[2025-05-07 17:28:00,148 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:00,148 INFO  L93              Difference]: Finished difference Result 102 states and 113 transitions.
[2025-05-07 17:28:00,149 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:28:00,149 INFO  L79                 Accepts]: Start accepts. Automaton has  has 8 states, 6 states have (on average 5.5) internal successors, (33), 8 states have internal predecessors, (33), 4 states have call successors, (21), 1 states have call predecessors, (21), 6 states have return successors, (21), 7 states have call predecessors, (21), 4 states have call successors, (21) Word has length 75
[2025-05-07 17:28:00,149 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:00,151 INFO  L225             Difference]: With dead ends: 102
[2025-05-07 17:28:00,151 INFO  L226             Difference]: Without dead ends: 102
[2025-05-07 17:28:00,151 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2025-05-07 17:28:00,151 INFO  L437           NwaCegarLoop]: 103 mSDtfsCounter, 2 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:00,151 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 700 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:28:00,152 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 102 states.
[2025-05-07 17:28:00,156 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100.
[2025-05-07 17:28:00,156 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 100 states, 42 states have (on average 1.0476190476190477) internal successors, (44), 44 states have internal predecessors, (44), 31 states have call successors, (32), 25 states have call predecessors, (32), 27 states have return successors, (35), 30 states have call predecessors, (35), 31 states have call successors, (35)
[2025-05-07 17:28:00,157 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 111 transitions.
[2025-05-07 17:28:00,157 INFO  L79                 Accepts]: Start accepts. Automaton has 100 states and 111 transitions. Word has length 75
[2025-05-07 17:28:00,157 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:00,157 INFO  L485      AbstractCegarLoop]: Abstraction has 100 states and 111 transitions.
[2025-05-07 17:28:00,157 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 6 states have (on average 5.5) internal successors, (33), 8 states have internal predecessors, (33), 4 states have call successors, (21), 1 states have call predecessors, (21), 6 states have return successors, (21), 7 states have call predecessors, (21), 4 states have call successors, (21)
[2025-05-07 17:28:00,157 INFO  L278                IsEmpty]: Start isEmpty. Operand 100 states and 111 transitions.
[2025-05-07 17:28:00,158 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 76
[2025-05-07 17:28:00,158 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:00,158 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]
[2025-05-07 17:28:00,159 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-05-07 17:28:00,159 INFO  L403      AbstractCegarLoop]: === Iteration 5 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:00,159 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:00,159 INFO  L85        PathProgramCache]: Analyzing trace with hash 1622458220, now seen corresponding path program 1 times
[2025-05-07 17:28:00,159 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:00,159 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306515365]
[2025-05-07 17:28:00,159 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:00,159 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:00,188 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes.
[2025-05-07 17:28:00,200 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements.
[2025-05-07 17:28:00,201 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:00,201 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:00,313 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 17:28:00,313 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:00,313 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306515365]
[2025-05-07 17:28:00,313 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306515365] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:00,313 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:00,313 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:28:00,313 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343208902]
[2025-05-07 17:28:00,313 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:00,314 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:28:00,314 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:00,314 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:28:00,315 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:28:00,315 INFO  L87              Difference]: Start difference. First operand 100 states and 111 transitions. Second operand  has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (21), 1 states have call predecessors, (21), 7 states have return successors, (21), 8 states have call predecessors, (21), 3 states have call successors, (21)
[2025-05-07 17:28:00,383 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:00,383 INFO  L93              Difference]: Finished difference Result 104 states and 115 transitions.
[2025-05-07 17:28:00,383 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:28:00,384 INFO  L79                 Accepts]: Start accepts. Automaton has  has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (21), 1 states have call predecessors, (21), 7 states have return successors, (21), 8 states have call predecessors, (21), 3 states have call successors, (21) Word has length 75
[2025-05-07 17:28:00,384 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:00,385 INFO  L225             Difference]: With dead ends: 104
[2025-05-07 17:28:00,385 INFO  L226             Difference]: Without dead ends: 104
[2025-05-07 17:28:00,385 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:28:00,386 INFO  L437           NwaCegarLoop]: 101 mSDtfsCounter, 1 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:00,386 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 693 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:28:00,387 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 104 states.
[2025-05-07 17:28:00,391 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104.
[2025-05-07 17:28:00,391 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 104 states, 44 states have (on average 1.0454545454545454) internal successors, (46), 46 states have internal predecessors, (46), 31 states have call successors, (32), 25 states have call predecessors, (32), 29 states have return successors, (37), 32 states have call predecessors, (37), 31 states have call successors, (37)
[2025-05-07 17:28:00,391 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 115 transitions.
[2025-05-07 17:28:00,392 INFO  L79                 Accepts]: Start accepts. Automaton has 104 states and 115 transitions. Word has length 75
[2025-05-07 17:28:00,392 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:00,392 INFO  L485      AbstractCegarLoop]: Abstraction has 104 states and 115 transitions.
[2025-05-07 17:28:00,392 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (21), 1 states have call predecessors, (21), 7 states have return successors, (21), 8 states have call predecessors, (21), 3 states have call successors, (21)
[2025-05-07 17:28:00,392 INFO  L278                IsEmpty]: Start isEmpty. Operand 104 states and 115 transitions.
[2025-05-07 17:28:00,393 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2025-05-07 17:28:00,393 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:00,393 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]
[2025-05-07 17:28:00,393 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-05-07 17:28:00,393 INFO  L403      AbstractCegarLoop]: === Iteration 6 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:00,393 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:00,393 INFO  L85        PathProgramCache]: Analyzing trace with hash 412234211, now seen corresponding path program 1 times
[2025-05-07 17:28:00,393 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:00,393 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038113007]
[2025-05-07 17:28:00,393 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:00,393 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:00,421 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes.
[2025-05-07 17:28:00,441 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements.
[2025-05-07 17:28:00,442 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:00,442 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:00,528 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 17:28:00,528 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:00,528 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038113007]
[2025-05-07 17:28:00,528 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038113007] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:00,529 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:00,529 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:28:00,529 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125132371]
[2025-05-07 17:28:00,529 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:00,529 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:28:00,529 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:00,530 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:28:00,530 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:28:00,530 INFO  L87              Difference]: Start difference. First operand 104 states and 115 transitions. Second operand  has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (22), 1 states have call predecessors, (22), 5 states have return successors, (22), 6 states have call predecessors, (22), 3 states have call successors, (22)
[2025-05-07 17:28:00,562 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:00,562 INFO  L93              Difference]: Finished difference Result 98 states and 109 transitions.
[2025-05-07 17:28:00,562 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:28:00,563 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (22), 1 states have call predecessors, (22), 5 states have return successors, (22), 6 states have call predecessors, (22), 3 states have call successors, (22) Word has length 78
[2025-05-07 17:28:00,563 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:00,563 INFO  L225             Difference]: With dead ends: 98
[2025-05-07 17:28:00,563 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:28:00,563 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 17:28:00,564 INFO  L437           NwaCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:00,564 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 487 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:00,564 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:28:00,564 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:28:00,564 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 17:28:00,564 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:28:00,564 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78
[2025-05-07 17:28:00,564 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:00,564 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:28:00,565 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (22), 1 states have call predecessors, (22), 5 states have return successors, (22), 6 states have call predecessors, (22), 3 states have call successors, (22)
[2025-05-07 17:28:00,565 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:28:00,565 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:28:00,567 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:28:00,567 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-05-07 17:28:00,569 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:00,571 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:28:00,574 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:28:00 BoogieIcfgContainer
[2025-05-07 17:28:00,574 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:28:00,574 INFO  L158              Benchmark]: Toolchain (without parser) took 2158.22ms. Allocated memory is still 234.9MB. Free memory was 150.6MB in the beginning and 152.3MB in the end (delta: -1.6MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:00,574 INFO  L158              Benchmark]: SmtParser took 0.24ms. Allocated memory is still 234.9MB. Free memory is still 173.9MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:00,574 INFO  L158              Benchmark]: ChcToBoogie took 37.95ms. Allocated memory is still 234.9MB. Free memory was 150.6MB in the beginning and 147.9MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:00,575 INFO  L158              Benchmark]: Boogie Preprocessor took 53.54ms. Allocated memory is still 234.9MB. Free memory was 147.9MB in the beginning and 144.7MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:00,575 INFO  L158              Benchmark]: RCFGBuilder took 416.57ms. Allocated memory was 234.9MB in the beginning and 318.8MB in the end (delta: 83.9MB). Free memory was 144.7MB in the beginning and 264.5MB in the end (delta: -119.8MB). Peak memory consumption was 43.1MB. Max. memory is 33.6GB.
[2025-05-07 17:28:00,575 INFO  L158              Benchmark]: TraceAbstraction took 1645.72ms. Allocated memory was 318.8MB in the beginning and 234.9MB in the end (delta: -83.9MB). Free memory was 263.9MB in the beginning and 152.3MB in the end (delta: 111.7MB). Peak memory consumption was 35.6MB. Max. memory is 33.6GB.
[2025-05-07 17:28:00,576 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.24ms. Allocated memory is still 234.9MB. Free memory is still 173.9MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 37.95ms. Allocated memory is still 234.9MB. Free memory was 150.6MB in the beginning and 147.9MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 53.54ms. Allocated memory is still 234.9MB. Free memory was 147.9MB in the beginning and 144.7MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 416.57ms. Allocated memory was 234.9MB in the beginning and 318.8MB in the end (delta: 83.9MB). Free memory was 144.7MB in the beginning and 264.5MB in the end (delta: -119.8MB). Peak memory consumption was 43.1MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1645.72ms. Allocated memory was 318.8MB in the beginning and 234.9MB in the end (delta: -83.9MB). Free memory was 263.9MB in the beginning and 152.3MB in the end (delta: 111.7MB). Peak memory consumption was 35.6MB. Max. memory is 33.6GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Unknown line] : the set of constraint Horn clauses is satisfiable
    For all program executions holds that the set of constraint Horn clauses is satisfiable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 26 procedures, 105 locations, 164 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 3504 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2860 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 199 IncrementalHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 644 mSDtfsCounter, 199 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=0, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 401 NumberOfCodeBlocks, 401 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 395 ConstructedInterpolants, 0 QuantifiedInterpolants, 517 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 17:28:00,587 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
