/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 11:15:53,953 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 11:15:54,015 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 11:15:54,018 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 11:15:54,018 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 11:15:54,035 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 11:15:54,036 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 11:15:54,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 11:15:54,037 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 11:15:54,037 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 11:15:54,037 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 11:15:54,037 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 11:15:54,037 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 11:15:54,038 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 11:15:54,038 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 11:15:54,038 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 11:15:54,038 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 11:15:54,038 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 11:15:54,039 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 11:15:54,039 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 11:15:54,039 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 11:15:54,039 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 11:15:54,040 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 11:15:54,040 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 11:15:54,040 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 11:15:54,040 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 11:15:54,040 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 11:15:54,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 11:15:54,041 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 11:15:54,041 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 11:15:54,041 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 11:15:54,041 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 11:15:54,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 11:15:54,042 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 11:15:54,042 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 11:15:54,042 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 11:15:54,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 11:15:54,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 11:15:54,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 11:15:54,336 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 11:15:54,337 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 11:15:54,338 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2023-08-27 11:15:55,437 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 11:15:55,641 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 11:15:55,642 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2023-08-27 11:15:55,650 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30f5a2e28/eb69293a0cdf4130a035cafb75fd34e4/FLAG396d41181 [2023-08-27 11:15:55,662 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30f5a2e28/eb69293a0cdf4130a035cafb75fd34e4 [2023-08-27 11:15:55,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 11:15:55,666 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 11:15:55,666 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 11:15:55,667 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 11:15:55,668 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 11:15:55,669 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:15:55" (1/1) ... [2023-08-27 11:15:55,669 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57e00c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:15:55, skipping insertion in model container [2023-08-27 11:15:55,669 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:15:55" (1/1) ... [2023-08-27 11:15:55,697 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 11:15:55,853 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 11:15:55,861 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 11:15:55,873 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-27 11:15:55,874 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-27 11:15:55,900 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 11:15:55,930 INFO L206 MainTranslator]: Completed translation [2023-08-27 11:15:55,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:15:55 WrapperNode [2023-08-27 11:15:55,932 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 11:15:55,934 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 11:15:55,934 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 11:15:55,934 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 11:15:55,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:15:55" (1/1) ... [2023-08-27 11:15:55,963 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:15:55" (1/1) ... [2023-08-27 11:15:55,982 INFO L138 Inliner]: procedures = 162, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2023-08-27 11:15:55,983 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 11:15:55,983 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 11:15:55,983 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 11:15:55,983 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 11:15:55,989 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:15:55" (1/1) ... [2023-08-27 11:15:55,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:15:55" (1/1) ... [2023-08-27 11:15:55,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:15:55" (1/1) ... [2023-08-27 11:15:55,996 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:15:55" (1/1) ... [2023-08-27 11:15:56,006 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:15:55" (1/1) ... [2023-08-27 11:15:56,007 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:15:55" (1/1) ... [2023-08-27 11:15:56,008 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:15:55" (1/1) ... [2023-08-27 11:15:56,008 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:15:55" (1/1) ... [2023-08-27 11:15:56,010 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 11:15:56,011 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 11:15:56,011 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 11:15:56,011 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 11:15:56,011 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:15:55" (1/1) ... [2023-08-27 11:15:56,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 11:15:56,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 11:15:56,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-27 11:15:56,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-27 11:15:56,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 11:15:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 11:15:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 11:15:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 11:15:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 11:15:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-27 11:15:56,132 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-27 11:15:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 11:15:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 11:15:56,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 11:15:56,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 11:15:56,133 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 11:15:56,251 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 11:15:56,252 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 11:15:56,387 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 11:15:56,392 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 11:15:56,392 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 11:15:56,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:15:56 BoogieIcfgContainer [2023-08-27 11:15:56,394 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 11:15:56,395 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 11:15:56,395 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 11:15:56,397 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 11:15:56,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 11:15:55" (1/3) ... [2023-08-27 11:15:56,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78535556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:15:56, skipping insertion in model container [2023-08-27 11:15:56,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:15:55" (2/3) ... [2023-08-27 11:15:56,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78535556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:15:56, skipping insertion in model container [2023-08-27 11:15:56,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:15:56" (3/3) ... [2023-08-27 11:15:56,399 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_31-traces-mine-vs-mutex_true.i [2023-08-27 11:15:56,411 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 11:15:56,411 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-27 11:15:56,411 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 11:15:56,449 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-27 11:15:56,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 87 transitions, 182 flow [2023-08-27 11:15:56,500 INFO L124 PetriNetUnfolderBase]: 2/86 cut-off events. [2023-08-27 11:15:56,500 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-27 11:15:56,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 86 events. 2/86 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 74 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2023-08-27 11:15:56,503 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 87 transitions, 182 flow [2023-08-27 11:15:56,509 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 79 transitions, 161 flow [2023-08-27 11:15:56,511 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 11:15:56,517 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 79 transitions, 161 flow [2023-08-27 11:15:56,519 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 79 transitions, 161 flow [2023-08-27 11:15:56,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 79 transitions, 161 flow [2023-08-27 11:15:56,534 INFO L124 PetriNetUnfolderBase]: 2/79 cut-off events. [2023-08-27 11:15:56,535 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:15:56,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 79 events. 2/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 74 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2023-08-27 11:15:56,536 INFO L119 LiptonReduction]: Number of co-enabled transitions 1248 [2023-08-27 11:15:58,564 INFO L134 LiptonReduction]: Checked pairs total: 3626 [2023-08-27 11:15:58,564 INFO L136 LiptonReduction]: Total number of compositions: 71 [2023-08-27 11:15:58,599 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 11:15:58,603 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7d3195db, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 11:15:58,603 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-08-27 11:15:58,605 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 11:15:58,605 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-08-27 11:15:58,605 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:15:58,605 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:15:58,605 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 11:15:58,606 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 11:15:58,609 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:15:58,609 INFO L85 PathProgramCache]: Analyzing trace with hash 9533796, now seen corresponding path program 1 times [2023-08-27 11:15:58,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:15:58,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337579633] [2023-08-27 11:15:58,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:15:58,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:15:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:15:58,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:15:58,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:15:58,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337579633] [2023-08-27 11:15:58,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337579633] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:15:58,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:15:58,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 11:15:58,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255723876] [2023-08-27 11:15:58,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:15:58,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 11:15:58,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:15:58,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 11:15:58,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 11:15:58,811 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 158 [2023-08-27 11:15:58,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 24 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2023-08-27 11:15:58,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:15:58,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 158 [2023-08-27 11:15:58,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:15:58,862 INFO L124 PetriNetUnfolderBase]: 53/140 cut-off events. [2023-08-27 11:15:58,863 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:15:58,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 140 events. 53/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 520 event pairs, 17 based on Foata normal form. 9/127 useless extension candidates. Maximal degree in co-relation 259. Up to 90 conditions per place. [2023-08-27 11:15:58,865 INFO L140 encePairwiseOnDemand]: 152/158 looper letters, 21 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2023-08-27 11:15:58,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 26 transitions, 101 flow [2023-08-27 11:15:58,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 11:15:58,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 11:15:58,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2023-08-27 11:15:58,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.540084388185654 [2023-08-27 11:15:58,877 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2023-08-27 11:15:58,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2023-08-27 11:15:58,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:15:58,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2023-08-27 11:15:58,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2023-08-27 11:15:58,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 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) [2023-08-27 11:15:58,885 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 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) [2023-08-27 11:15:58,886 INFO L175 Difference]: Start difference. First operand has 27 places, 24 transitions, 51 flow. Second operand 3 states and 256 transitions. [2023-08-27 11:15:58,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 26 transitions, 101 flow [2023-08-27 11:15:58,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 26 transitions, 100 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 11:15:58,889 INFO L231 Difference]: Finished difference. Result has 26 places, 20 transitions, 50 flow [2023-08-27 11:15:58,890 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=26, PETRI_TRANSITIONS=20} [2023-08-27 11:15:58,893 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -1 predicate places. [2023-08-27 11:15:58,893 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 20 transitions, 50 flow [2023-08-27 11:15:58,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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) [2023-08-27 11:15:58,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:15:58,893 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:15:58,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 11:15:58,894 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 11:15:58,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:15:58,894 INFO L85 PathProgramCache]: Analyzing trace with hash 552997076, now seen corresponding path program 1 times [2023-08-27 11:15:58,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:15:58,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488924527] [2023-08-27 11:15:58,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:15:58,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:15:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:15:58,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:15:58,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:15:58,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488924527] [2023-08-27 11:15:58,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488924527] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:15:58,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:15:58,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 11:15:58,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738123787] [2023-08-27 11:15:58,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:15:58,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 11:15:58,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:15:58,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 11:15:58,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 11:15:58,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 158 [2023-08-27 11:15:58,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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) [2023-08-27 11:15:58,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:15:58,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 158 [2023-08-27 11:15:58,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:15:59,022 INFO L124 PetriNetUnfolderBase]: 46/126 cut-off events. [2023-08-27 11:15:59,022 INFO L125 PetriNetUnfolderBase]: For 9/10 co-relation queries the response was YES. [2023-08-27 11:15:59,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 126 events. 46/126 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 453 event pairs, 14 based on Foata normal form. 1/119 useless extension candidates. Maximal degree in co-relation 249. Up to 44 conditions per place. [2023-08-27 11:15:59,023 INFO L140 encePairwiseOnDemand]: 154/158 looper letters, 23 selfloop transitions, 3 changer transitions 3/32 dead transitions. [2023-08-27 11:15:59,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 32 transitions, 134 flow [2023-08-27 11:15:59,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 11:15:59,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 11:15:59,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 334 transitions. [2023-08-27 11:15:59,025 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5284810126582279 [2023-08-27 11:15:59,025 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 334 transitions. [2023-08-27 11:15:59,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 334 transitions. [2023-08-27 11:15:59,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:15:59,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 334 transitions. [2023-08-27 11:15:59,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 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) [2023-08-27 11:15:59,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 158.0) internal successors, (790), 5 states have internal predecessors, (790), 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) [2023-08-27 11:15:59,028 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 158.0) internal successors, (790), 5 states have internal predecessors, (790), 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) [2023-08-27 11:15:59,028 INFO L175 Difference]: Start difference. First operand has 26 places, 20 transitions, 50 flow. Second operand 4 states and 334 transitions. [2023-08-27 11:15:59,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 32 transitions, 134 flow [2023-08-27 11:15:59,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 32 transitions, 130 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 11:15:59,029 INFO L231 Difference]: Finished difference. Result has 26 places, 19 transitions, 50 flow [2023-08-27 11:15:59,029 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=50, PETRI_PLACES=26, PETRI_TRANSITIONS=19} [2023-08-27 11:15:59,029 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -1 predicate places. [2023-08-27 11:15:59,030 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 19 transitions, 50 flow [2023-08-27 11:15:59,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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) [2023-08-27 11:15:59,030 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:15:59,030 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:15:59,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 11:15:59,030 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 11:15:59,031 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:15:59,031 INFO L85 PathProgramCache]: Analyzing trace with hash 552997059, now seen corresponding path program 1 times [2023-08-27 11:15:59,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:15:59,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220248285] [2023-08-27 11:15:59,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:15:59,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:15:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:15:59,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:15:59,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:15:59,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220248285] [2023-08-27 11:15:59,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220248285] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:15:59,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:15:59,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-27 11:15:59,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948992076] [2023-08-27 11:15:59,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:15:59,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 11:15:59,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:15:59,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 11:15:59,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-27 11:15:59,071 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 158 [2023-08-27 11:15:59,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 19 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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) [2023-08-27 11:15:59,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:15:59,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 158 [2023-08-27 11:15:59,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:15:59,114 INFO L124 PetriNetUnfolderBase]: 39/111 cut-off events. [2023-08-27 11:15:59,115 INFO L125 PetriNetUnfolderBase]: For 9/10 co-relation queries the response was YES. [2023-08-27 11:15:59,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 111 events. 39/111 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 363 event pairs, 13 based on Foata normal form. 1/112 useless extension candidates. Maximal degree in co-relation 226. Up to 34 conditions per place. [2023-08-27 11:15:59,115 INFO L140 encePairwiseOnDemand]: 154/158 looper letters, 16 selfloop transitions, 3 changer transitions 9/31 dead transitions. [2023-08-27 11:15:59,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 31 transitions, 132 flow [2023-08-27 11:15:59,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 11:15:59,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 11:15:59,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 333 transitions. [2023-08-27 11:15:59,117 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5268987341772152 [2023-08-27 11:15:59,117 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 333 transitions. [2023-08-27 11:15:59,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 333 transitions. [2023-08-27 11:15:59,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:15:59,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 333 transitions. [2023-08-27 11:15:59,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 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) [2023-08-27 11:15:59,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 158.0) internal successors, (790), 5 states have internal predecessors, (790), 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) [2023-08-27 11:15:59,119 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 158.0) internal successors, (790), 5 states have internal predecessors, (790), 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) [2023-08-27 11:15:59,119 INFO L175 Difference]: Start difference. First operand has 26 places, 19 transitions, 50 flow. Second operand 4 states and 333 transitions. [2023-08-27 11:15:59,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 31 transitions, 132 flow [2023-08-27 11:15:59,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 31 transitions, 126 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 11:15:59,120 INFO L231 Difference]: Finished difference. Result has 25 places, 15 transitions, 42 flow [2023-08-27 11:15:59,120 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=42, PETRI_PLACES=25, PETRI_TRANSITIONS=15} [2023-08-27 11:15:59,121 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -2 predicate places. [2023-08-27 11:15:59,121 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 15 transitions, 42 flow [2023-08-27 11:15:59,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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) [2023-08-27 11:15:59,121 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:15:59,121 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:15:59,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 11:15:59,122 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 11:15:59,122 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:15:59,122 INFO L85 PathProgramCache]: Analyzing trace with hash -277444622, now seen corresponding path program 1 times [2023-08-27 11:15:59,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:15:59,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150301333] [2023-08-27 11:15:59,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:15:59,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:15:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:15:59,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:15:59,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:15:59,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150301333] [2023-08-27 11:15:59,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150301333] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:15:59,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:15:59,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 11:15:59,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991913826] [2023-08-27 11:15:59,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:15:59,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-27 11:15:59,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:15:59,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-27 11:15:59,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-27 11:15:59,287 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 158 [2023-08-27 11:15:59,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 15 transitions, 42 flow. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 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) [2023-08-27 11:15:59,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:15:59,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 158 [2023-08-27 11:15:59,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:15:59,315 INFO L124 PetriNetUnfolderBase]: 16/49 cut-off events. [2023-08-27 11:15:59,315 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:15:59,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 49 events. 16/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 2 based on Foata normal form. 9/58 useless extension candidates. Maximal degree in co-relation 104. Up to 40 conditions per place. [2023-08-27 11:15:59,316 INFO L140 encePairwiseOnDemand]: 154/158 looper letters, 13 selfloop transitions, 4 changer transitions 0/17 dead transitions. [2023-08-27 11:15:59,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 17 transitions, 80 flow [2023-08-27 11:15:59,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-27 11:15:59,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-27 11:15:59,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2023-08-27 11:15:59,317 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3971518987341772 [2023-08-27 11:15:59,317 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 251 transitions. [2023-08-27 11:15:59,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 251 transitions. [2023-08-27 11:15:59,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:15:59,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 251 transitions. [2023-08-27 11:15:59,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 62.75) internal successors, (251), 4 states have internal predecessors, (251), 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) [2023-08-27 11:15:59,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 158.0) internal successors, (790), 5 states have internal predecessors, (790), 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) [2023-08-27 11:15:59,319 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 158.0) internal successors, (790), 5 states have internal predecessors, (790), 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) [2023-08-27 11:15:59,319 INFO L175 Difference]: Start difference. First operand has 25 places, 15 transitions, 42 flow. Second operand 4 states and 251 transitions. [2023-08-27 11:15:59,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 17 transitions, 80 flow [2023-08-27 11:15:59,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 74 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 11:15:59,320 INFO L231 Difference]: Finished difference. Result has 22 places, 15 transitions, 44 flow [2023-08-27 11:15:59,320 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=44, PETRI_PLACES=22, PETRI_TRANSITIONS=15} [2023-08-27 11:15:59,321 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -5 predicate places. [2023-08-27 11:15:59,321 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 15 transitions, 44 flow [2023-08-27 11:15:59,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 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) [2023-08-27 11:15:59,321 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:15:59,321 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 11:15:59,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 11:15:59,322 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-08-27 11:15:59,322 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:15:59,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1417181053, now seen corresponding path program 1 times [2023-08-27 11:15:59,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:15:59,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550600479] [2023-08-27 11:15:59,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:15:59,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:15:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:15:59,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:15:59,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:15:59,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550600479] [2023-08-27 11:15:59,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550600479] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:15:59,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:15:59,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-27 11:15:59,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424989713] [2023-08-27 11:15:59,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:15:59,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-27 11:15:59,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:15:59,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-27 11:15:59,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-27 11:15:59,417 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 158 [2023-08-27 11:15:59,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 44 flow. Second operand has 5 states, 5 states have (on average 73.4) internal successors, (367), 5 states have internal predecessors, (367), 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) [2023-08-27 11:15:59,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:15:59,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 158 [2023-08-27 11:15:59,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:15:59,447 INFO L124 PetriNetUnfolderBase]: 12/44 cut-off events. [2023-08-27 11:15:59,447 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-27 11:15:59,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 44 events. 12/44 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 8 based on Foata normal form. 1/45 useless extension candidates. Maximal degree in co-relation 87. Up to 26 conditions per place. [2023-08-27 11:15:59,448 INFO L140 encePairwiseOnDemand]: 153/158 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-08-27 11:15:59,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 18 transitions, 78 flow [2023-08-27 11:15:59,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-27 11:15:59,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-27 11:15:59,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 371 transitions. [2023-08-27 11:15:59,449 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46962025316455697 [2023-08-27 11:15:59,449 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 371 transitions. [2023-08-27 11:15:59,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 371 transitions. [2023-08-27 11:15:59,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:15:59,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 371 transitions. [2023-08-27 11:15:59,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 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) [2023-08-27 11:15:59,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 158.0) internal successors, (948), 6 states have internal predecessors, (948), 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) [2023-08-27 11:15:59,451 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 158.0) internal successors, (948), 6 states have internal predecessors, (948), 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) [2023-08-27 11:15:59,451 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 44 flow. Second operand 5 states and 371 transitions. [2023-08-27 11:15:59,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 18 transitions, 78 flow [2023-08-27 11:15:59,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 18 transitions, 72 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-27 11:15:59,452 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2023-08-27 11:15:59,452 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2023-08-27 11:15:59,453 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, -5 predicate places. [2023-08-27 11:15:59,453 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2023-08-27 11:15:59,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.4) internal successors, (367), 5 states have internal predecessors, (367), 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) [2023-08-27 11:15:59,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (9 of 10 remaining) [2023-08-27 11:15:59,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2023-08-27 11:15:59,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-08-27 11:15:59,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-08-27 11:15:59,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2023-08-27 11:15:59,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2023-08-27 11:15:59,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-08-27 11:15:59,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-08-27 11:15:59,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-08-27 11:15:59,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-08-27 11:15:59,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 11:15:59,457 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-27 11:15:59,460 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 11:15:59,460 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 11:15:59,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 11:15:59 BasicIcfg [2023-08-27 11:15:59,463 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 11:15:59,463 INFO L158 Benchmark]: Toolchain (without parser) took 3797.15ms. Allocated memory was 375.4MB in the beginning and 450.9MB in the end (delta: 75.5MB). Free memory was 349.5MB in the beginning and 286.2MB in the end (delta: 63.3MB). Peak memory consumption was 141.3MB. Max. memory is 16.0GB. [2023-08-27 11:15:59,463 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 375.4MB. Free memory was 352.6MB in the beginning and 352.5MB in the end (delta: 101.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 11:15:59,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.00ms. Allocated memory is still 375.4MB. Free memory was 349.5MB in the beginning and 330.3MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 11:15:59,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.19ms. Allocated memory is still 375.4MB. Free memory was 330.3MB in the beginning and 328.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 11:15:59,464 INFO L158 Benchmark]: Boogie Preprocessor took 26.81ms. Allocated memory is still 375.4MB. Free memory was 328.7MB in the beginning and 327.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 11:15:59,464 INFO L158 Benchmark]: RCFGBuilder took 383.02ms. Allocated memory is still 375.4MB. Free memory was 327.3MB in the beginning and 312.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-27 11:15:59,465 INFO L158 Benchmark]: TraceAbstraction took 3067.61ms. Allocated memory was 375.4MB in the beginning and 450.9MB in the end (delta: 75.5MB). Free memory was 312.0MB in the beginning and 286.2MB in the end (delta: 25.8MB). Peak memory consumption was 103.5MB. Max. memory is 16.0GB. [2023-08-27 11:15:59,466 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 375.4MB. Free memory was 352.6MB in the beginning and 352.5MB in the end (delta: 101.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 266.00ms. Allocated memory is still 375.4MB. Free memory was 349.5MB in the beginning and 330.3MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 49.19ms. Allocated memory is still 375.4MB. Free memory was 330.3MB in the beginning and 328.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.81ms. Allocated memory is still 375.4MB. Free memory was 328.7MB in the beginning and 327.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 383.02ms. Allocated memory is still 375.4MB. Free memory was 327.3MB in the beginning and 312.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 3067.61ms. Allocated memory was 375.4MB in the beginning and 450.9MB in the end (delta: 75.5MB). Free memory was 312.0MB in the beginning and 286.2MB in the end (delta: 25.8MB). Peak memory consumption was 103.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 231]: Unsoundness Warning unspecified type, defaulting to int C: short [231] - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 81 PlacesBefore, 27 PlacesAfterwards, 79 TransitionsBefore, 24 TransitionsAfterwards, 1248 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 71 TotalNumberOfCompositions, 3626 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1415, independent: 1190, independent conditional: 0, independent unconditional: 1190, dependent: 225, dependent conditional: 0, dependent unconditional: 225, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 691, independent: 647, independent conditional: 0, independent unconditional: 647, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1415, independent: 543, independent conditional: 0, independent unconditional: 543, dependent: 181, dependent conditional: 0, dependent unconditional: 181, unknown: 691, unknown conditional: 0, unknown unconditional: 691] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 20, Positive conditional cache size: 0, Positive unconditional cache size: 20, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 687]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 687]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 690]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 690]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 114 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 176 IncrementalHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 0 mSDtfsCounter, 176 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 177 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-27 11:15:59,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...