/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_27-base_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 03:15:54,730 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 03:15:54,803 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 [2023-08-25 03:15:54,808 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 03:15:54,809 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 03:15:54,847 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 03:15:54,848 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 03:15:54,848 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 03:15:54,849 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 03:15:54,852 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 03:15:54,852 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 03:15:54,853 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 03:15:54,853 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 03:15:54,854 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 03:15:54,854 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 03:15:54,854 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 03:15:54,855 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 03:15:54,855 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 03:15:54,855 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 03:15:54,855 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 03:15:54,856 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 03:15:54,857 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 03:15:54,857 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 03:15:54,857 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 03:15:54,858 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 03:15:54,858 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 03:15:54,858 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 03:15:54,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:15:54,858 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 03:15:54,859 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 03:15:54,860 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 03:15:54,860 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 03:15:54,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 03:15:54,860 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 03:15:54,860 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 03:15:54,861 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 03:15:55,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 03:15:55,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 03:15:55,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 03:15:55,223 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 03:15:55,223 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 03:15:55,224 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_27-base_rc.i [2023-08-25 03:15:56,414 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 03:15:56,694 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 03:15:56,695 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_27-base_rc.i [2023-08-25 03:15:56,712 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f2d73d55/d82e9b443e0e413aacb89940dc5f378c/FLAGf3ce5bf3e [2023-08-25 03:15:56,727 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f2d73d55/d82e9b443e0e413aacb89940dc5f378c [2023-08-25 03:15:56,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 03:15:56,735 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 03:15:56,738 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 03:15:56,738 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 03:15:56,741 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 03:15:56,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:15:56" (1/1) ... [2023-08-25 03:15:56,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@651ffa15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:56, skipping insertion in model container [2023-08-25 03:15:56,743 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:15:56" (1/1) ... [2023-08-25 03:15:56,796 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 03:15:57,205 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:15:57,224 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 03:15:57,246 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:15:57,247 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:15:57,271 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [736] [2023-08-25 03:15:57,279 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:15:57,337 WARN L669 CHandler]: The function g is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 03:15:57,343 INFO L206 MainTranslator]: Completed translation [2023-08-25 03:15:57,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:57 WrapperNode [2023-08-25 03:15:57,344 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 03:15:57,345 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 03:15:57,346 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 03:15:57,346 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 03:15:57,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:57" (1/1) ... [2023-08-25 03:15:57,372 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:57" (1/1) ... [2023-08-25 03:15:57,397 INFO L138 Inliner]: procedures = 265, calls = 26, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 84 [2023-08-25 03:15:57,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 03:15:57,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 03:15:57,398 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 03:15:57,398 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 03:15:57,404 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:57" (1/1) ... [2023-08-25 03:15:57,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:57" (1/1) ... [2023-08-25 03:15:57,408 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:57" (1/1) ... [2023-08-25 03:15:57,408 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:57" (1/1) ... [2023-08-25 03:15:57,413 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:57" (1/1) ... [2023-08-25 03:15:57,414 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:57" (1/1) ... [2023-08-25 03:15:57,415 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:57" (1/1) ... [2023-08-25 03:15:57,416 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:57" (1/1) ... [2023-08-25 03:15:57,419 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 03:15:57,419 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 03:15:57,420 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 03:15:57,420 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 03:15:57,420 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:57" (1/1) ... [2023-08-25 03:15:57,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:15:57,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:15:57,448 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) [2023-08-25 03:15:57,475 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 [2023-08-25 03:15:57,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 03:15:57,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 03:15:57,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 03:15:57,503 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 03:15:57,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 03:15:57,503 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 03:15:57,503 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 03:15:57,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 03:15:57,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 03:15:57,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 03:15:57,505 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 03:15:57,623 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 03:15:57,624 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 03:15:57,811 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 03:15:57,817 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 03:15:57,817 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 03:15:57,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:15:57 BoogieIcfgContainer [2023-08-25 03:15:57,819 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 03:15:57,822 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 03:15:57,822 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 03:15:57,825 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 03:15:57,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:15:56" (1/3) ... [2023-08-25 03:15:57,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3782a4de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:15:57, skipping insertion in model container [2023-08-25 03:15:57,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:57" (2/3) ... [2023-08-25 03:15:57,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3782a4de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:15:57, skipping insertion in model container [2023-08-25 03:15:57,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:15:57" (3/3) ... [2023-08-25 03:15:57,827 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_27-base_rc.i [2023-08-25 03:15:57,862 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 03:15:57,863 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-25 03:15:57,863 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 03:15:57,939 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 03:15:57,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 93 transitions, 191 flow [2023-08-25 03:15:58,046 INFO L124 PetriNetUnfolderBase]: 1/92 cut-off events. [2023-08-25 03:15:58,046 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:15:58,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 92 events. 1/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 124 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2023-08-25 03:15:58,052 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 93 transitions, 191 flow [2023-08-25 03:15:58,058 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 92 transitions, 187 flow [2023-08-25 03:15:58,062 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 03:15:58,073 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 92 transitions, 187 flow [2023-08-25 03:15:58,077 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 92 transitions, 187 flow [2023-08-25 03:15:58,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 92 transitions, 187 flow [2023-08-25 03:15:58,109 INFO L124 PetriNetUnfolderBase]: 1/92 cut-off events. [2023-08-25 03:15:58,109 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:15:58,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 92 events. 1/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 124 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2023-08-25 03:15:58,112 INFO L119 LiptonReduction]: Number of co-enabled transitions 1978 [2023-08-25 03:16:00,168 INFO L134 LiptonReduction]: Checked pairs total: 6735 [2023-08-25 03:16:00,168 INFO L136 LiptonReduction]: Total number of compositions: 61 [2023-08-25 03:16:00,179 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 03:16:00,185 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;@79df4253, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 03:16:00,185 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-08-25 03:16:00,188 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 03:16:00,188 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-25 03:16:00,188 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:16:00,188 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:16:00,189 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 03:16:00,189 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2023-08-25 03:16:00,193 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:16:00,193 INFO L85 PathProgramCache]: Analyzing trace with hash 311170851, now seen corresponding path program 1 times [2023-08-25 03:16:00,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:16:00,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322637586] [2023-08-25 03:16:00,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:16:00,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:16:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:16:00,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:16:00,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:16:00,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322637586] [2023-08-25 03:16:00,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322637586] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:16:00,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:16:00,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:16:00,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942312871] [2023-08-25 03:16:00,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:16:00,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:16:00,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:16:00,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:16:00,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:16:00,482 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 154 [2023-08-25 03:16:00,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 33 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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) [2023-08-25 03:16:00,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:16:00,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 154 [2023-08-25 03:16:00,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:16:00,590 INFO L124 PetriNetUnfolderBase]: 177/462 cut-off events. [2023-08-25 03:16:00,591 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:16:00,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 846 conditions, 462 events. 177/462 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2603 event pairs, 14 based on Foata normal form. 0/399 useless extension candidates. Maximal degree in co-relation 837. Up to 192 conditions per place. [2023-08-25 03:16:00,596 INFO L140 encePairwiseOnDemand]: 150/154 looper letters, 40 selfloop transitions, 3 changer transitions 0/52 dead transitions. [2023-08-25 03:16:00,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 52 transitions, 193 flow [2023-08-25 03:16:00,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:16:00,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:16:00,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2023-08-25 03:16:00,606 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6536796536796536 [2023-08-25 03:16:00,606 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 302 transitions. [2023-08-25 03:16:00,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 302 transitions. [2023-08-25 03:16:00,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:16:00,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 302 transitions. [2023-08-25 03:16:00,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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) [2023-08-25 03:16:00,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 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) [2023-08-25 03:16:00,618 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 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) [2023-08-25 03:16:00,619 INFO L175 Difference]: Start difference. First operand has 36 places, 33 transitions, 69 flow. Second operand 3 states and 302 transitions. [2023-08-25 03:16:00,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 52 transitions, 193 flow [2023-08-25 03:16:00,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 52 transitions, 192 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:16:00,623 INFO L231 Difference]: Finished difference. Result has 39 places, 35 transitions, 90 flow [2023-08-25 03:16:00,625 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=39, PETRI_TRANSITIONS=35} [2023-08-25 03:16:00,627 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 3 predicate places. [2023-08-25 03:16:00,628 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 35 transitions, 90 flow [2023-08-25 03:16:00,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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) [2023-08-25 03:16:00,628 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:16:00,628 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 03:16:00,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 03:16:00,629 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2023-08-25 03:16:00,629 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:16:00,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1056598194, now seen corresponding path program 1 times [2023-08-25 03:16:00,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:16:00,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651844457] [2023-08-25 03:16:00,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:16:00,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:16:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:16:00,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:16:00,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:16:00,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651844457] [2023-08-25 03:16:00,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651844457] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:16:00,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:16:00,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:16:00,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670118092] [2023-08-25 03:16:00,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:16:00,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:16:00,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:16:00,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:16:00,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:16:00,679 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 154 [2023-08-25 03:16:00,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 35 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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) [2023-08-25 03:16:00,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:16:00,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 154 [2023-08-25 03:16:00,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:16:00,787 INFO L124 PetriNetUnfolderBase]: 184/494 cut-off events. [2023-08-25 03:16:00,787 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2023-08-25 03:16:00,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 961 conditions, 494 events. 184/494 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2831 event pairs, 106 based on Foata normal form. 0/446 useless extension candidates. Maximal degree in co-relation 951. Up to 299 conditions per place. [2023-08-25 03:16:00,791 INFO L140 encePairwiseOnDemand]: 149/154 looper letters, 38 selfloop transitions, 5 changer transitions 0/52 dead transitions. [2023-08-25 03:16:00,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 52 transitions, 222 flow [2023-08-25 03:16:00,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:16:00,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:16:00,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2023-08-25 03:16:00,794 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6277056277056277 [2023-08-25 03:16:00,794 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 290 transitions. [2023-08-25 03:16:00,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 290 transitions. [2023-08-25 03:16:00,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:16:00,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 290 transitions. [2023-08-25 03:16:00,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2023-08-25 03:16:00,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 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) [2023-08-25 03:16:00,798 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 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) [2023-08-25 03:16:00,798 INFO L175 Difference]: Start difference. First operand has 39 places, 35 transitions, 90 flow. Second operand 3 states and 290 transitions. [2023-08-25 03:16:00,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 52 transitions, 222 flow [2023-08-25 03:16:00,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 52 transitions, 212 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 03:16:00,800 INFO L231 Difference]: Finished difference. Result has 41 places, 38 transitions, 120 flow [2023-08-25 03:16:00,801 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=41, PETRI_TRANSITIONS=38} [2023-08-25 03:16:00,801 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 5 predicate places. [2023-08-25 03:16:00,801 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 38 transitions, 120 flow [2023-08-25 03:16:00,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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) [2023-08-25 03:16:00,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:16:00,802 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:16:00,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 03:16:00,802 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2023-08-25 03:16:00,803 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:16:00,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1779271069, now seen corresponding path program 1 times [2023-08-25 03:16:00,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:16:00,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854583373] [2023-08-25 03:16:00,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:16:00,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:16:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:16:00,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:16:00,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:16:00,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854583373] [2023-08-25 03:16:00,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854583373] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:16:00,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:16:00,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 03:16:00,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381755976] [2023-08-25 03:16:00,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:16:00,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:16:00,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:16:00,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:16:00,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:16:00,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 154 [2023-08-25 03:16:00,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 38 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2023-08-25 03:16:00,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:16:00,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 154 [2023-08-25 03:16:00,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:16:00,948 INFO L124 PetriNetUnfolderBase]: 92/294 cut-off events. [2023-08-25 03:16:00,948 INFO L125 PetriNetUnfolderBase]: For 87/88 co-relation queries the response was YES. [2023-08-25 03:16:00,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 294 events. 92/294 cut-off events. For 87/88 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1570 event pairs, 59 based on Foata normal form. 4/274 useless extension candidates. Maximal degree in co-relation 585. Up to 164 conditions per place. [2023-08-25 03:16:00,952 INFO L140 encePairwiseOnDemand]: 148/154 looper letters, 31 selfloop transitions, 6 changer transitions 0/48 dead transitions. [2023-08-25 03:16:00,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 48 transitions, 210 flow [2023-08-25 03:16:00,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:16:00,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:16:00,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 272 transitions. [2023-08-25 03:16:00,954 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5887445887445888 [2023-08-25 03:16:00,955 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 272 transitions. [2023-08-25 03:16:00,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 272 transitions. [2023-08-25 03:16:00,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:16:00,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 272 transitions. [2023-08-25 03:16:00,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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) [2023-08-25 03:16:00,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 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) [2023-08-25 03:16:00,958 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 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) [2023-08-25 03:16:00,958 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 120 flow. Second operand 3 states and 272 transitions. [2023-08-25 03:16:00,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 48 transitions, 210 flow [2023-08-25 03:16:00,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 48 transitions, 182 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-25 03:16:00,961 INFO L231 Difference]: Finished difference. Result has 38 places, 36 transitions, 106 flow [2023-08-25 03:16:00,961 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=38, PETRI_TRANSITIONS=36} [2023-08-25 03:16:00,962 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 2 predicate places. [2023-08-25 03:16:00,962 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 36 transitions, 106 flow [2023-08-25 03:16:00,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2023-08-25 03:16:00,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:16:00,962 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:16:00,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 03:16:00,963 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2023-08-25 03:16:00,963 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:16:00,963 INFO L85 PathProgramCache]: Analyzing trace with hash 855799650, now seen corresponding path program 1 times [2023-08-25 03:16:00,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:16:00,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138808620] [2023-08-25 03:16:00,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:16:00,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:16:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:16:00,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:16:00,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:16:00,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138808620] [2023-08-25 03:16:00,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138808620] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:16:00,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:16:00,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:16:00,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344854252] [2023-08-25 03:16:00,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:16:00,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:16:00,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:16:00,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:16:00,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:16:00,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 154 [2023-08-25 03:16:00,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 36 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2023-08-25 03:16:00,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:16:00,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 154 [2023-08-25 03:16:00,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:16:01,068 INFO L124 PetriNetUnfolderBase]: 174/413 cut-off events. [2023-08-25 03:16:01,069 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2023-08-25 03:16:01,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 967 conditions, 413 events. 174/413 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2069 event pairs, 59 based on Foata normal form. 0/345 useless extension candidates. Maximal degree in co-relation 956. Up to 212 conditions per place. [2023-08-25 03:16:01,071 INFO L140 encePairwiseOnDemand]: 145/154 looper letters, 37 selfloop transitions, 6 changer transitions 5/52 dead transitions. [2023-08-25 03:16:01,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 52 transitions, 254 flow [2023-08-25 03:16:01,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:16:01,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:16:01,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 277 transitions. [2023-08-25 03:16:01,073 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5995670995670995 [2023-08-25 03:16:01,073 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 277 transitions. [2023-08-25 03:16:01,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 277 transitions. [2023-08-25 03:16:01,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:16:01,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 277 transitions. [2023-08-25 03:16:01,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2023-08-25 03:16:01,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 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) [2023-08-25 03:16:01,076 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 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) [2023-08-25 03:16:01,076 INFO L175 Difference]: Start difference. First operand has 38 places, 36 transitions, 106 flow. Second operand 3 states and 277 transitions. [2023-08-25 03:16:01,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 52 transitions, 254 flow [2023-08-25 03:16:01,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 52 transitions, 244 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:16:01,078 INFO L231 Difference]: Finished difference. Result has 39 places, 36 transitions, 130 flow [2023-08-25 03:16:01,078 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=39, PETRI_TRANSITIONS=36} [2023-08-25 03:16:01,079 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 3 predicate places. [2023-08-25 03:16:01,079 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 36 transitions, 130 flow [2023-08-25 03:16:01,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2023-08-25 03:16:01,079 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:16:01,079 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:16:01,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 03:16:01,080 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2023-08-25 03:16:01,080 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:16:01,080 INFO L85 PathProgramCache]: Analyzing trace with hash 2084779217, now seen corresponding path program 1 times [2023-08-25 03:16:01,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:16:01,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870042717] [2023-08-25 03:16:01,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:16:01,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:16:01,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:16:01,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:16:01,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:16:01,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870042717] [2023-08-25 03:16:01,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870042717] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:16:01,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:16:01,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:16:01,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235086484] [2023-08-25 03:16:01,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:16:01,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:16:01,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:16:01,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:16:01,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:16:01,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 154 [2023-08-25 03:16:01,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2023-08-25 03:16:01,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:16:01,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 154 [2023-08-25 03:16:01,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:16:01,199 INFO L124 PetriNetUnfolderBase]: 161/387 cut-off events. [2023-08-25 03:16:01,201 INFO L125 PetriNetUnfolderBase]: For 192/192 co-relation queries the response was YES. [2023-08-25 03:16:01,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1077 conditions, 387 events. 161/387 cut-off events. For 192/192 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1881 event pairs, 104 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 1065. Up to 352 conditions per place. [2023-08-25 03:16:01,205 INFO L140 encePairwiseOnDemand]: 150/154 looper letters, 35 selfloop transitions, 3 changer transitions 3/45 dead transitions. [2023-08-25 03:16:01,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 248 flow [2023-08-25 03:16:01,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:16:01,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:16:01,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2023-08-25 03:16:01,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5562770562770563 [2023-08-25 03:16:01,211 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 257 transitions. [2023-08-25 03:16:01,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 257 transitions. [2023-08-25 03:16:01,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:16:01,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 257 transitions. [2023-08-25 03:16:01,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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) [2023-08-25 03:16:01,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 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) [2023-08-25 03:16:01,214 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 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) [2023-08-25 03:16:01,214 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 130 flow. Second operand 3 states and 257 transitions. [2023-08-25 03:16:01,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 248 flow [2023-08-25 03:16:01,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 45 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 03:16:01,218 INFO L231 Difference]: Finished difference. Result has 40 places, 37 transitions, 135 flow [2023-08-25 03:16:01,218 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=135, PETRI_PLACES=40, PETRI_TRANSITIONS=37} [2023-08-25 03:16:01,221 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 4 predicate places. [2023-08-25 03:16:01,221 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 37 transitions, 135 flow [2023-08-25 03:16:01,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2023-08-25 03:16:01,221 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:16:01,221 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:16:01,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 03:16:01,222 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2023-08-25 03:16:01,222 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:16:01,223 INFO L85 PathProgramCache]: Analyzing trace with hash 200973353, now seen corresponding path program 1 times [2023-08-25 03:16:01,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:16:01,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732788727] [2023-08-25 03:16:01,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:16:01,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:16:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:16:01,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:16:01,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:16:01,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732788727] [2023-08-25 03:16:01,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732788727] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:16:01,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:16:01,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:16:01,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933534385] [2023-08-25 03:16:01,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:16:01,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:16:01,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:16:01,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:16:01,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:16:01,302 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 154 [2023-08-25 03:16:01,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 37 transitions, 135 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) [2023-08-25 03:16:01,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:16:01,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 154 [2023-08-25 03:16:01,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:16:01,363 INFO L124 PetriNetUnfolderBase]: 144/359 cut-off events. [2023-08-25 03:16:01,363 INFO L125 PetriNetUnfolderBase]: For 167/167 co-relation queries the response was YES. [2023-08-25 03:16:01,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1020 conditions, 359 events. 144/359 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1732 event pairs, 87 based on Foata normal form. 0/344 useless extension candidates. Maximal degree in co-relation 1007. Up to 324 conditions per place. [2023-08-25 03:16:01,365 INFO L140 encePairwiseOnDemand]: 150/154 looper letters, 33 selfloop transitions, 3 changer transitions 6/46 dead transitions. [2023-08-25 03:16:01,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 46 transitions, 253 flow [2023-08-25 03:16:01,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:16:01,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:16:01,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2023-08-25 03:16:01,366 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5562770562770563 [2023-08-25 03:16:01,366 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 257 transitions. [2023-08-25 03:16:01,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 257 transitions. [2023-08-25 03:16:01,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:16:01,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 257 transitions. [2023-08-25 03:16:01,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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) [2023-08-25 03:16:01,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 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) [2023-08-25 03:16:01,369 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 154.0) internal successors, (616), 4 states have internal predecessors, (616), 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) [2023-08-25 03:16:01,369 INFO L175 Difference]: Start difference. First operand has 40 places, 37 transitions, 135 flow. Second operand 3 states and 257 transitions. [2023-08-25 03:16:01,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 46 transitions, 253 flow [2023-08-25 03:16:01,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 46 transitions, 250 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:16:01,371 INFO L231 Difference]: Finished difference. Result has 42 places, 35 transitions, 139 flow [2023-08-25 03:16:01,371 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=139, PETRI_PLACES=42, PETRI_TRANSITIONS=35} [2023-08-25 03:16:01,372 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 6 predicate places. [2023-08-25 03:16:01,372 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 35 transitions, 139 flow [2023-08-25 03:16:01,372 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) [2023-08-25 03:16:01,372 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:16:01,372 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:16:01,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 03:16:01,373 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2023-08-25 03:16:01,373 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:16:01,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1769735899, now seen corresponding path program 1 times [2023-08-25 03:16:01,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:16:01,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583648458] [2023-08-25 03:16:01,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:16:01,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:16:01,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 03:16:01,395 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 03:16:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 03:16:01,430 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 03:16:01,430 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 03:16:01,432 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2023-08-25 03:16:01,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2023-08-25 03:16:01,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 13 remaining) [2023-08-25 03:16:01,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2023-08-25 03:16:01,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2023-08-25 03:16:01,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2023-08-25 03:16:01,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2023-08-25 03:16:01,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2023-08-25 03:16:01,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2023-08-25 03:16:01,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2023-08-25 03:16:01,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2023-08-25 03:16:01,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2023-08-25 03:16:01,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2023-08-25 03:16:01,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 03:16:01,435 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:16:01,444 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 03:16:01,444 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 03:16:01,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:16:01 BasicIcfg [2023-08-25 03:16:01,482 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 03:16:01,483 INFO L158 Benchmark]: Toolchain (without parser) took 4747.04ms. Allocated memory was 392.2MB in the beginning and 543.2MB in the end (delta: 151.0MB). Free memory was 367.1MB in the beginning and 487.5MB in the end (delta: -120.4MB). Peak memory consumption was 31.2MB. Max. memory is 16.0GB. [2023-08-25 03:16:01,483 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 392.2MB. Free memory is still 368.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:16:01,483 INFO L158 Benchmark]: CACSL2BoogieTranslator took 606.66ms. Allocated memory is still 392.2MB. Free memory was 367.1MB in the beginning and 339.2MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-25 03:16:01,483 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.93ms. Allocated memory is still 392.2MB. Free memory was 338.9MB in the beginning and 336.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:16:01,484 INFO L158 Benchmark]: Boogie Preprocessor took 20.98ms. Allocated memory is still 392.2MB. Free memory was 336.8MB in the beginning and 335.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:16:01,484 INFO L158 Benchmark]: RCFGBuilder took 399.73ms. Allocated memory is still 392.2MB. Free memory was 335.3MB in the beginning and 321.0MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-25 03:16:01,485 INFO L158 Benchmark]: TraceAbstraction took 3660.21ms. Allocated memory was 392.2MB in the beginning and 543.2MB in the end (delta: 151.0MB). Free memory was 320.3MB in the beginning and 487.5MB in the end (delta: -167.2MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:16:01,486 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 392.2MB. Free memory is still 368.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 606.66ms. Allocated memory is still 392.2MB. Free memory was 367.1MB in the beginning and 339.2MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 51.93ms. Allocated memory is still 392.2MB. Free memory was 338.9MB in the beginning and 336.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 20.98ms. Allocated memory is still 392.2MB. Free memory was 336.8MB in the beginning and 335.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 399.73ms. Allocated memory is still 392.2MB. Free memory was 335.3MB in the beginning and 321.0MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 3660.21ms. Allocated memory was 392.2MB in the beginning and 543.2MB in the end (delta: 151.0MB). Free memory was 320.3MB in the beginning and 487.5MB in the end (delta: -167.2MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 736]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [736] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 95 PlacesBefore, 36 PlacesAfterwards, 92 TransitionsBefore, 33 TransitionsAfterwards, 1978 CoEnabledTransitionPairs, 6 FixpointIterations, 24 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 61 TotalNumberOfCompositions, 6735 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3454, independent: 3097, independent conditional: 0, independent unconditional: 3097, dependent: 357, dependent conditional: 0, dependent unconditional: 357, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1073, independent: 1016, independent conditional: 0, independent unconditional: 1016, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3454, independent: 2081, independent conditional: 0, independent unconditional: 2081, dependent: 300, dependent conditional: 0, dependent unconditional: 300, unknown: 1073, unknown conditional: 0, unknown unconditional: 1073] , Statistics on independence cache: Total cache size (in pairs): 178, Positive cache size: 151, Positive conditional cache size: 0, Positive unconditional cache size: 151, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 944]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int global; [L918] 0 pthread_mutex_t gm = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L927] 0 void (*f)() = good; [L928] 0 pthread_mutex_t fm = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L938] 0 pthread_t id; [L939] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [={-1:0}, fm={2:0}, global=0, gm={1:0}, id={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L941] 0 f = bad [L930] 1 void (*g)(); [L932] 1 g = f VAL [={-1:2}, ={-1:2}, arg={0:0}, arg={0:0}, fm={2:0}, global=0, gm={1:0}] [L934] CALL 1 g() [L920] 1 global++ VAL [={-1:2}, fm={2:0}, global++=0, global=1, gm={1:0}] [L944] 0 printf("global: %d\n", global) VAL [={-1:2}, fm={2:0}, global=1, gm={1:0}, id={3:0}] Now there is a data race on ~global~0 between C: global++ [920] and C: printf("global: %d\n", global) [944] - UnprovableResult [Line: 941]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 920]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 924]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 920]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 924]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 137 locations, 13 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: 3.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 321 IncrementalHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 19 mSDtfsCounter, 321 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=139occurred in iteration=6, InterpolantAutomatonStates: 18, 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 67 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-25 03:16:01,536 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...