./chc-comp-wrapper.sh ../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/library_after_contract.sol_0_no_adts_000.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-05-07 17:28:20,241 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-05-07 17:28:20,296 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c60bbd25-7dbf-4df7-a02e-21dfe67bc65a/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-05-07 17:28:20,300 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-05-07 17:28:20,300 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-05-07 17:28:20,317 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-05-07 17:28:20,318 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-05-07 17:28:20,318 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-05-07 17:28:20,318 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-05-07 17:28:20,318 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-05-07 17:28:20,319 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-05-07 17:28:20,319 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-05-07 17:28:20,319 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-05-07 17:28:20,319 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-05-07 17:28:20,319 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-05-07 17:28:20,319 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-05-07 17:28:20,319 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-05-07 17:28:20,319 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-05-07 17:28:20,319 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:28:20,320 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-05-07 17:28:20,320 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-05-07 17:28:20,320 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-05-07 17:28:20,320 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-05-07 17:28:20,320 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-05-07 17:28:20,320 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-05-07 17:28:20,321 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-05-07 17:28:20,321 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-05-07 17:28:20,515 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-05-07 17:28:20,521 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-05-07 17:28:20,522 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-05-07 17:28:20,523 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-05-07 17:28:20,523 INFO  L274        PluginConnector]: SmtParser initialized
[2025-05-07 17:28:20,524 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c60bbd25-7dbf-4df7-a02e-21dfe67bc65a/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/library_after_contract.sol_0_no_adts_000.smt2
[2025-05-07 17:28:20,525 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-05-07 17:28:20,527 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-05-07 17:28:20,720 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c60bbd25-7dbf-4df7-a02e-21dfe67bc65a/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp25-benchmarks/solidity/no_adts/unit_tests/functions/library_after_contract.sol_0_no_adts_000.smt2
[2025-05-07 17:28:20,723 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-05-07 17:28:20,724 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-05-07 17:28:20,725 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-05-07 17:28:20,725 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-05-07 17:28:20,725 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-05-07 17:28:20,727 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:28:20" (1/1) ...
[2025-05-07 17:28:20,760 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20 Unit
[2025-05-07 17:28:20,761 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-05-07 17:28:20,762 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-05-07 17:28:20,762 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-05-07 17:28:20,762 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-05-07 17:28:20,777 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20" (1/1) ...
[2025-05-07 17:28:20,777 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20" (1/1) ...
[2025-05-07 17:28:20,797 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20" (1/1) ...
[2025-05-07 17:28:20,797 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20" (1/1) ...
[2025-05-07 17:28:20,801 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20" (1/1) ...
[2025-05-07 17:28:20,801 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20" (1/1) ...
[2025-05-07 17:28:20,803 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20" (1/1) ...
[2025-05-07 17:28:20,804 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20" (1/1) ...
[2025-05-07 17:28:20,805 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20" (1/1) ...
[2025-05-07 17:28:20,814 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-05-07 17:28:20,814 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-05-07 17:28:20,814 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-05-07 17:28:20,814 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-05-07 17:28:20,815 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20" (1/1) ...
[2025-05-07 17:28:20,817 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-05-07 17:28:20,824 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-05-07 17:28:20,833 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 17:28:20,835 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 17:28:20,843 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-05-07 17:28:20,843 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-05-07 17:28:20,843 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-05-07 17:28:20,843 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_3_0 given in one single declaration
[2025-05-07 17:28:20,843 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_3_0
[2025-05-07 17:28:20,843 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_3_0
[2025-05-07 17:28:20,844 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_20_0 given in one single declaration
[2025-05-07 17:28:20,844 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_20_0
[2025-05-07 17:28:20,844 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_20_0
[2025-05-07 17:28:20,844 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_20_0 given in one single declaration
[2025-05-07 17:28:20,844 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_20_0
[2025-05-07 17:28:20,844 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_20_0
[2025-05-07 17:28:20,844 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_20_C_20_0 given in one single declaration
[2025-05-07 17:28:20,844 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_20_C_20_0
[2025-05-07 17:28:20,844 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_20_C_20_0
[2025-05-07 17:28:20,844 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_22_C_20_0 given in one single declaration
[2025-05-07 17:28:20,844 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_22_C_20_0
[2025-05-07 17:28:20,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_22_C_20_0
[2025-05-07 17:28:20,845 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_21_C_20_0 given in one single declaration
[2025-05-07 17:28:20,845 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_21_C_20_0
[2025-05-07 17:28:20,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_21_C_20_0
[2025-05-07 17:28:20,845 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_23_C_20_0 given in one single declaration
[2025-05-07 17:28:20,845 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_23_C_20_0
[2025-05-07 17:28:20,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_23_C_20_0
[2025-05-07 17:28:20,845 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_g__19_20_0 given in one single declaration
[2025-05-07 17:28:20,845 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_g__19_20_0
[2025-05-07 17:28:20,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_g__19_20_0
[2025-05-07 17:28:20,845 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_g__19_20_0 given in one single declaration
[2025-05-07 17:28:20,845 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_g__19_20_0
[2025-05-07 17:28:20,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_g__19_20_0
[2025-05-07 17:28:20,845 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_g_18_20_0 given in one single declaration
[2025-05-07 17:28:20,846 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_g_18_20_0
[2025-05-07 17:28:20,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_g_18_20_0
[2025-05-07 17:28:20,846 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_function_g__19_20_0 given in one single declaration
[2025-05-07 17:28:20,846 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_function_g__19_20_0
[2025-05-07 17:28:20,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_function_g__19_20_0
[2025-05-07 17:28:20,846 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_13_function_f__30_20_0 given in one single declaration
[2025-05-07 17:28:20,846 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_13_function_f__30_20_0
[2025-05-07 17:28:20,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_13_function_f__30_20_0
[2025-05-07 17:28:20,846 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_5_function_f__30_20_0 given in one single declaration
[2025-05-07 17:28:20,846 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_5_function_f__30_20_0
[2025-05-07 17:28:20,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_5_function_f__30_20_0
[2025-05-07 17:28:20,846 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_18_return_function_f__30_20_0 given in one single declaration
[2025-05-07 17:28:20,846 INFO  L130     BoogieDeclarations]: Found specification of procedure block_18_return_function_f__30_20_0
[2025-05-07 17:28:20,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_18_return_function_f__30_20_0
[2025-05-07 17:28:20,847 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_17_f_29_20_0 given in one single declaration
[2025-05-07 17:28:20,847 INFO  L130     BoogieDeclarations]: Found specification of procedure block_17_f_29_20_0
[2025-05-07 17:28:20,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_17_f_29_20_0
[2025-05-07 17:28:20,847 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_16_function_f__30_20_0 given in one single declaration
[2025-05-07 17:28:20,847 INFO  L130     BoogieDeclarations]: Found specification of procedure block_16_function_f__30_20_0
[2025-05-07 17:28:20,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_16_function_f__30_20_0
[2025-05-07 17:28:20,847 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_return_function_g__19_20_0 given in one single declaration
[2025-05-07 17:28:20,847 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_return_function_g__19_20_0
[2025-05-07 17:28:20,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_return_function_g__19_20_0
[2025-05-07 17:28:20,847 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_function_g__19_20_0 given in one single declaration
[2025-05-07 17:28:20,847 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_function_g__19_20_0
[2025-05-07 17:28:20,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_function_g__19_20_0
[2025-05-07 17:28:20,847 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_15_function_g__19_20_0 given in one single declaration
[2025-05-07 17:28:20,847 INFO  L130     BoogieDeclarations]: Found specification of procedure block_15_function_g__19_20_0
[2025-05-07 17:28:20,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_15_function_g__19_20_0
[2025-05-07 17:28:20,847 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-05-07 17:28:20,847 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-05-07 17:28:20,848 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-05-07 17:28:20,955 INFO  L234             CfgBuilder]: Building ICFG
[2025-05-07 17:28:20,957 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-05-07 17:28:21,109 INFO  L?                        ?]: Removed 144 outVars from TransFormulas that were not future-live.
[2025-05-07 17:28:21,109 INFO  L283             CfgBuilder]: Performing block encoding
[2025-05-07 17:28:21,118 INFO  L304             CfgBuilder]: Using library mode
[2025-05-07 17:28:21,118 INFO  L312             CfgBuilder]: Removed 10 assume(true) statements.
[2025-05-07 17:28:21,119 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:28:21 BoogieIcfgContainer
[2025-05-07 17:28:21,119 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-05-07 17:28:21,120 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-05-07 17:28:21,121 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-05-07 17:28:21,123 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-05-07 17:28:21,123 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 07.05 05:28:20" (1/3) ...
[2025-05-07 17:28:21,124 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e3b2858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 07.05 05:28:21, skipping insertion in model container
[2025-05-07 17:28:21,124 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 07.05 05:28:20" (2/3) ...
[2025-05-07 17:28:21,124 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e3b2858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.05 05:28:21, skipping insertion in model container
[2025-05-07 17:28:21,124 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.05 05:28:21" (3/3) ...
[2025-05-07 17:28:21,125 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-05-07 17:28:21,144 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-05-07 17:28:21,146 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 21 procedures, 82 locations, 121 edges, 21 initial locations, 0 loop locations, and 1 error locations.
[2025-05-07 17:28:21,174 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-05-07 17:28:21,182 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;@5c58a131, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-05-07 17:28:21,182 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-05-07 17:28:21,185 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 82 states, 34 states have (on average 1.088235294117647) internal successors, (37), 37 states have internal predecessors, (37), 27 states have call successors, (28), 20 states have call predecessors, (28), 20 states have return successors, (28), 24 states have call predecessors, (28), 27 states have call successors, (28)
[2025-05-07 17:28:21,191 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2025-05-07 17:28:21,191 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:21,192 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:21,192 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:21,195 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:21,196 INFO  L85        PathProgramCache]: Analyzing trace with hash -983242079, now seen corresponding path program 1 times
[2025-05-07 17:28:21,201 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:21,201 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263284839]
[2025-05-07 17:28:21,201 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:21,201 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:21,248 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes.
[2025-05-07 17:28:21,326 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements.
[2025-05-07 17:28:21,326 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:21,326 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:21,888 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 17:28:21,888 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:21,888 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263284839]
[2025-05-07 17:28:21,889 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263284839] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:21,889 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:21,891 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2025-05-07 17:28:21,892 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303868721]
[2025-05-07 17:28:21,893 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:21,895 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-05-07 17:28:21,896 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:21,913 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-05-07 17:28:21,914 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:28:21,915 INFO  L87              Difference]: Start difference. First operand  has 82 states, 34 states have (on average 1.088235294117647) internal successors, (37), 37 states have internal predecessors, (37), 27 states have call successors, (28), 20 states have call predecessors, (28), 20 states have return successors, (28), 24 states have call predecessors, (28), 27 states have call successors, (28) Second operand  has 8 states, 6 states have (on average 5.0) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (19), 7 states have call predecessors, (19), 5 states have call successors, (19)
[2025-05-07 17:28:22,011 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:22,012 INFO  L93              Difference]: Finished difference Result 78 states and 88 transitions.
[2025-05-07 17:28:22,013 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-05-07 17:28:22,014 INFO  L79                 Accepts]: Start accepts. Automaton has  has 8 states, 6 states have (on average 5.0) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (19), 7 states have call predecessors, (19), 5 states have call successors, (19) Word has length 68
[2025-05-07 17:28:22,014 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:22,019 INFO  L225             Difference]: With dead ends: 78
[2025-05-07 17:28:22,019 INFO  L226             Difference]: Without dead ends: 75
[2025-05-07 17:28:22,021 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2025-05-07 17:28:22,023 INFO  L437           NwaCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:22,024 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 562 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-05-07 17:28:22,034 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 75 states.
[2025-05-07 17:28:22,049 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75.
[2025-05-07 17:28:22,050 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 75 states, 31 states have (on average 1.064516129032258) internal successors, (33), 33 states have internal predecessors, (33), 25 states have call successors, (25), 19 states have call predecessors, (25), 19 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25)
[2025-05-07 17:28:22,052 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 83 transitions.
[2025-05-07 17:28:22,053 INFO  L79                 Accepts]: Start accepts. Automaton has 75 states and 83 transitions. Word has length 68
[2025-05-07 17:28:22,054 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:22,054 INFO  L485      AbstractCegarLoop]: Abstraction has 75 states and 83 transitions.
[2025-05-07 17:28:22,054 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 6 states have (on average 5.0) internal successors, (30), 8 states have internal predecessors, (30), 5 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (19), 7 states have call predecessors, (19), 5 states have call successors, (19)
[2025-05-07 17:28:22,054 INFO  L278                IsEmpty]: Start isEmpty. Operand 75 states and 83 transitions.
[2025-05-07 17:28:22,056 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2025-05-07 17:28:22,056 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:22,056 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:22,056 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-05-07 17:28:22,056 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:22,056 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:22,057 INFO  L85        PathProgramCache]: Analyzing trace with hash 1852702017, now seen corresponding path program 1 times
[2025-05-07 17:28:22,057 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:22,057 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440447198]
[2025-05-07 17:28:22,057 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:22,057 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:22,096 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes.
[2025-05-07 17:28:22,114 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements.
[2025-05-07 17:28:22,114 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:22,114 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:22,224 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 17:28:22,224 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:22,224 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440447198]
[2025-05-07 17:28:22,224 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440447198] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:22,224 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:22,224 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-05-07 17:28:22,224 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538497238]
[2025-05-07 17:28:22,224 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:22,226 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-05-07 17:28:22,226 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:22,227 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-05-07 17:28:22,227 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-05-07 17:28:22,227 INFO  L87              Difference]: Start difference. First operand 75 states and 83 transitions. Second operand  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19)
[2025-05-07 17:28:22,272 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:22,272 INFO  L93              Difference]: Finished difference Result 79 states and 87 transitions.
[2025-05-07 17:28:22,272 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-05-07 17:28:22,273 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) Word has length 68
[2025-05-07 17:28:22,273 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:22,274 INFO  L225             Difference]: With dead ends: 79
[2025-05-07 17:28:22,274 INFO  L226             Difference]: Without dead ends: 79
[2025-05-07 17:28:22,274 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 17:28:22,274 INFO  L437           NwaCegarLoop]: 81 mSDtfsCounter, 1 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 393 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 17:28:22,274 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 393 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:22,275 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 79 states.
[2025-05-07 17:28:22,280 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79.
[2025-05-07 17:28:22,280 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 79 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 35 states have internal predecessors, (35), 25 states have call successors, (25), 19 states have call predecessors, (25), 21 states have return successors, (27), 24 states have call predecessors, (27), 25 states have call successors, (27)
[2025-05-07 17:28:22,281 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions.
[2025-05-07 17:28:22,281 INFO  L79                 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 68
[2025-05-07 17:28:22,281 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:22,281 INFO  L485      AbstractCegarLoop]: Abstraction has 79 states and 87 transitions.
[2025-05-07 17:28:22,282 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (19), 1 states have call predecessors, (19), 5 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19)
[2025-05-07 17:28:22,282 INFO  L278                IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions.
[2025-05-07 17:28:22,283 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2025-05-07 17:28:22,283 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:22,283 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:22,283 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-05-07 17:28:22,283 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:22,283 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:22,283 INFO  L85        PathProgramCache]: Analyzing trace with hash -800097883, now seen corresponding path program 1 times
[2025-05-07 17:28:22,283 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:22,283 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339988543]
[2025-05-07 17:28:22,283 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:22,283 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:22,310 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes.
[2025-05-07 17:28:22,318 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements.
[2025-05-07 17:28:22,318 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:22,318 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:22,382 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 17:28:22,382 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:22,382 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339988543]
[2025-05-07 17:28:22,382 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339988543] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:22,382 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:22,382 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-05-07 17:28:22,382 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903262425]
[2025-05-07 17:28:22,382 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:22,383 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-05-07 17:28:22,383 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:22,383 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-05-07 17:28:22,383 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-05-07 17:28:22,384 INFO  L87              Difference]: Start difference. First operand 79 states and 87 transitions. Second operand  has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18)
[2025-05-07 17:28:22,392 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:22,393 INFO  L93              Difference]: Finished difference Result 83 states and 91 transitions.
[2025-05-07 17:28:22,393 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-05-07 17:28:22,393 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 65
[2025-05-07 17:28:22,393 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:22,394 INFO  L225             Difference]: With dead ends: 83
[2025-05-07 17:28:22,394 INFO  L226             Difference]: Without dead ends: 79
[2025-05-07 17:28:22,394 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 17:28:22,395 INFO  L437           NwaCegarLoop]: 84 mSDtfsCounter, 1 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:22,395 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 244 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:22,396 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 79 states.
[2025-05-07 17:28:22,399 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77.
[2025-05-07 17:28:22,400 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 77 states, 33 states have (on average 1.0303030303030303) internal successors, (34), 34 states have internal predecessors, (34), 23 states have call successors, (23), 19 states have call predecessors, (23), 21 states have return successors, (25), 23 states have call predecessors, (25), 23 states have call successors, (25)
[2025-05-07 17:28:22,400 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions.
[2025-05-07 17:28:22,401 INFO  L79                 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 65
[2025-05-07 17:28:22,401 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:22,401 INFO  L485      AbstractCegarLoop]: Abstraction has 77 states and 82 transitions.
[2025-05-07 17:28:22,401 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18)
[2025-05-07 17:28:22,401 INFO  L278                IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions.
[2025-05-07 17:28:22,402 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2025-05-07 17:28:22,402 INFO  L210           NwaCegarLoop]: Found error trace
[2025-05-07 17:28:22,402 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-05-07 17:28:22,402 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-05-07 17:28:22,402 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-05-07 17:28:22,403 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-05-07 17:28:22,403 INFO  L85        PathProgramCache]: Analyzing trace with hash 288109609, now seen corresponding path program 1 times
[2025-05-07 17:28:22,403 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-05-07 17:28:22,403 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361954846]
[2025-05-07 17:28:22,403 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-05-07 17:28:22,403 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-05-07 17:28:22,434 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes.
[2025-05-07 17:28:22,445 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements.
[2025-05-07 17:28:22,445 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-05-07 17:28:22,445 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-05-07 17:28:22,537 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 17:28:22,538 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-05-07 17:28:22,538 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361954846]
[2025-05-07 17:28:22,538 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361954846] provided 1 perfect and 0 imperfect interpolant sequences
[2025-05-07 17:28:22,538 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-05-07 17:28:22,538 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2025-05-07 17:28:22,538 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130961748]
[2025-05-07 17:28:22,538 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-05-07 17:28:22,539 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-05-07 17:28:22,539 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-05-07 17:28:22,539 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-05-07 17:28:22,539 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2025-05-07 17:28:22,540 INFO  L87              Difference]: Start difference. First operand 77 states and 82 transitions. Second operand  has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 4 states have call successors, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 6 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:28:22,586 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-05-07 17:28:22,586 INFO  L93              Difference]: Finished difference Result 42 states and 42 transitions.
[2025-05-07 17:28:22,587 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2025-05-07 17:28:22,587 INFO  L79                 Accepts]: Start accepts. Automaton has  has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 4 states have call successors, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 6 states have call predecessors, (18), 4 states have call successors, (18) Word has length 65
[2025-05-07 17:28:22,587 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-05-07 17:28:22,587 INFO  L225             Difference]: With dead ends: 42
[2025-05-07 17:28:22,587 INFO  L226             Difference]: Without dead ends: 0
[2025-05-07 17:28:22,587 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 17:28:22,588 INFO  L437           NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-05-07 17:28:22,588 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-05-07 17:28:22,588 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-05-07 17:28:22,588 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-05-07 17:28:22,589 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 17:28:22,589 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-05-07 17:28:22,589 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65
[2025-05-07 17:28:22,589 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-05-07 17:28:22,589 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-05-07 17:28:22,589 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 4 states have call successors, (18), 1 states have call predecessors, (18), 6 states have return successors, (18), 6 states have call predecessors, (18), 4 states have call successors, (18)
[2025-05-07 17:28:22,589 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-05-07 17:28:22,589 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-05-07 17:28:22,591 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-05-07 17:28:22,592 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-05-07 17:28:22,594 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2025-05-07 17:28:22,596 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-05-07 17:28:22,598 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.05 05:28:22 BoogieIcfgContainer
[2025-05-07 17:28:22,598 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-05-07 17:28:22,599 INFO  L158              Benchmark]: Toolchain (without parser) took 1875.06ms. Allocated memory is still 234.9MB. Free memory was 154.8MB in the beginning and 161.6MB in the end (delta: -6.8MB). Peak memory consumption was 11.0MB. Max. memory is 33.6GB.
[2025-05-07 17:28:22,599 INFO  L158              Benchmark]: SmtParser took 0.19ms. Allocated memory is still 234.9MB. Free memory is still 174.2MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:22,599 INFO  L158              Benchmark]: ChcToBoogie took 36.20ms. Allocated memory is still 234.9MB. Free memory was 154.8MB in the beginning and 152.5MB in the end (delta: 2.3MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:28:22,600 INFO  L158              Benchmark]: Boogie Preprocessor took 52.37ms. Allocated memory is still 234.9MB. Free memory was 152.5MB in the beginning and 149.5MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:22,600 INFO  L158              Benchmark]: RCFGBuilder took 304.38ms. Allocated memory is still 234.9MB. Free memory was 149.4MB in the beginning and 122.3MB in the end (delta: 27.1MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-05-07 17:28:22,600 INFO  L158              Benchmark]: TraceAbstraction took 1478.10ms. Allocated memory is still 234.9MB. Free memory was 121.7MB in the beginning and 161.6MB in the end (delta: -39.9MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-05-07 17:28:22,601 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 174.2MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 36.20ms. Allocated memory is still 234.9MB. Free memory was 154.8MB in the beginning and 152.5MB in the end (delta: 2.3MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * Boogie Preprocessor took 52.37ms. Allocated memory is still 234.9MB. Free memory was 152.5MB in the beginning and 149.5MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 304.38ms. Allocated memory is still 234.9MB. Free memory was 149.4MB in the beginning and 122.3MB in the end (delta: 27.1MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1478.10ms. Allocated memory is still 234.9MB. Free memory was 121.7MB in the beginning and 161.6MB in the end (delta: -39.9MB). There was no memory consumed. 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 21 procedures, 82 locations, 121 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 1414 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1128 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 87 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 286 mSDtfsCounter, 87 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=0, InterpolantAutomatonStates: 25, 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 266 NumberOfCodeBlocks, 266 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 262 ConstructedInterpolants, 0 QuantifiedInterpolants, 356 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 17:28:22,611 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
