/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.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/00-sanity_09-include.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 06:54:50,351 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 06:54:50,405 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 [2023-08-26 06:54:50,408 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 06:54:50,409 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 06:54:50,434 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 06:54:50,435 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 06:54:50,435 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 06:54:50,436 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 06:54:50,439 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 06:54:50,439 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 06:54:50,439 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 06:54:50,439 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 06:54:50,440 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 06:54:50,440 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 06:54:50,440 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 06:54:50,440 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 06:54:50,440 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 06:54:50,441 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 06:54:50,441 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 06:54:50,441 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 06:54:50,442 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 06:54:50,442 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 06:54:50,442 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 06:54:50,442 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 06:54:50,442 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 06:54:50,443 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 06:54:50,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:54:50,443 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 06:54:50,443 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 06:54:50,444 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 06:54:50,444 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 06:54:50,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 06:54:50,444 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 06:54:50,444 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 06:54:50,444 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 06:54:50,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 06:54:50,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 06:54:50,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 06:54:50,703 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 06:54:50,703 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 06:54:50,704 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/00-sanity_09-include.i [2023-08-26 06:54:51,676 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 06:54:51,967 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 06:54:51,967 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/00-sanity_09-include.i [2023-08-26 06:54:51,992 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5da6f69e/34e7081c3b4440018c54f3051124143b/FLAG0684aa4d0 [2023-08-26 06:54:52,019 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5da6f69e/34e7081c3b4440018c54f3051124143b [2023-08-26 06:54:52,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 06:54:52,024 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 06:54:52,024 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 06:54:52,024 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 06:54:52,026 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 06:54:52,026 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:54:52" (1/1) ... [2023-08-26 06:54:52,027 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@985e570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:52, skipping insertion in model container [2023-08-26 06:54:52,027 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:54:52" (1/1) ... [2023-08-26 06:54:52,073 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 06:54:52,368 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:54:52,378 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 06:54:52,389 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [261] [2023-08-26 06:54:52,391 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [261] [2023-08-26 06:54:52,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:54:52,444 INFO L206 MainTranslator]: Completed translation [2023-08-26 06:54:52,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:52 WrapperNode [2023-08-26 06:54:52,445 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 06:54:52,446 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 06:54:52,446 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 06:54:52,446 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 06:54:52,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:52" (1/1) ... [2023-08-26 06:54:52,473 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:52" (1/1) ... [2023-08-26 06:54:52,489 INFO L138 Inliner]: procedures = 264, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2023-08-26 06:54:52,489 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 06:54:52,490 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 06:54:52,491 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 06:54:52,491 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 06:54:52,495 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:52" (1/1) ... [2023-08-26 06:54:52,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:52" (1/1) ... [2023-08-26 06:54:52,505 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:52" (1/1) ... [2023-08-26 06:54:52,506 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:52" (1/1) ... [2023-08-26 06:54:52,511 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:52" (1/1) ... [2023-08-26 06:54:52,512 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:52" (1/1) ... [2023-08-26 06:54:52,512 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:52" (1/1) ... [2023-08-26 06:54:52,513 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:52" (1/1) ... [2023-08-26 06:54:52,514 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 06:54:52,515 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 06:54:52,515 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 06:54:52,515 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 06:54:52,515 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:52" (1/1) ... [2023-08-26 06:54:52,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:54:52,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:54:52,534 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) [2023-08-26 06:54:52,557 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 [2023-08-26 06:54:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 06:54:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 06:54:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 06:54:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 06:54:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 06:54:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 06:54:52,565 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 06:54:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 06:54:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 06:54:52,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 06:54:52,566 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 06:54:52,688 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 06:54:52,689 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 06:54:52,822 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 06:54:52,826 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 06:54:52,827 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 06:54:52,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:54:52 BoogieIcfgContainer [2023-08-26 06:54:52,828 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 06:54:52,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 06:54:52,830 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 06:54:52,832 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 06:54:52,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 06:54:52" (1/3) ... [2023-08-26 06:54:52,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d25314b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:54:52, skipping insertion in model container [2023-08-26 06:54:52,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:54:52" (2/3) ... [2023-08-26 06:54:52,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d25314b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:54:52, skipping insertion in model container [2023-08-26 06:54:52,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:54:52" (3/3) ... [2023-08-26 06:54:52,834 INFO L112 eAbstractionObserver]: Analyzing ICFG 00-sanity_09-include.i [2023-08-26 06:54:52,847 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 06:54:52,847 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-26 06:54:52,847 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 06:54:52,910 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 06:54:52,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 54 transitions, 113 flow [2023-08-26 06:54:52,975 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2023-08-26 06:54:52,976 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:54:52,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 53 events. 0/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-26 06:54:52,978 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 54 transitions, 113 flow [2023-08-26 06:54:52,982 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 53 transitions, 109 flow [2023-08-26 06:54:52,985 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 06:54:52,996 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 53 transitions, 109 flow [2023-08-26 06:54:52,999 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 53 transitions, 109 flow [2023-08-26 06:54:53,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 53 transitions, 109 flow [2023-08-26 06:54:53,023 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2023-08-26 06:54:53,023 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:54:53,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 53 events. 0/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-26 06:54:53,024 INFO L119 LiptonReduction]: Number of co-enabled transitions 612 [2023-08-26 06:54:54,056 INFO L134 LiptonReduction]: Checked pairs total: 1779 [2023-08-26 06:54:54,057 INFO L136 LiptonReduction]: Total number of compositions: 35 [2023-08-26 06:54:54,066 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 06:54:54,070 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;@3c370c8d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 06:54:54,070 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-26 06:54:54,072 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 06:54:54,072 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2023-08-26 06:54:54,073 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:54:54,073 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:54:54,073 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-26 06:54:54,074 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 06:54:54,077 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:54:54,077 INFO L85 PathProgramCache]: Analyzing trace with hash 5845720, now seen corresponding path program 1 times [2023-08-26 06:54:54,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:54:54,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579856022] [2023-08-26 06:54:54,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:54:54,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:54:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:54:54,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:54:54,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:54:54,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579856022] [2023-08-26 06:54:54,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579856022] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:54:54,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:54:54,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:54:54,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713787254] [2023-08-26 06:54:54,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:54:54,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:54:54,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:54:54,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:54:54,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:54:54,269 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 89 [2023-08-26 06:54:54,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2023-08-26 06:54:54,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:54:54,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 89 [2023-08-26 06:54:54,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:54:54,326 INFO L124 PetriNetUnfolderBase]: 44/124 cut-off events. [2023-08-26 06:54:54,326 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:54:54,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 124 events. 44/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 499 event pairs, 16 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 228. Up to 61 conditions per place. [2023-08-26 06:54:54,328 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 20 selfloop transitions, 6 changer transitions 0/29 dead transitions. [2023-08-26 06:54:54,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 29 transitions, 113 flow [2023-08-26 06:54:54,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:54:54,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:54:54,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2023-08-26 06:54:54,353 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5655430711610487 [2023-08-26 06:54:54,354 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 151 transitions. [2023-08-26 06:54:54,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 151 transitions. [2023-08-26 06:54:54,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:54:54,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 151 transitions. [2023-08-26 06:54:54,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2023-08-26 06:54:54,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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) [2023-08-26 06:54:54,362 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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) [2023-08-26 06:54:54,363 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 39 flow. Second operand 3 states and 151 transitions. [2023-08-26 06:54:54,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 29 transitions, 113 flow [2023-08-26 06:54:54,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 29 transitions, 112 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:54:54,366 INFO L231 Difference]: Finished difference. Result has 25 places, 24 transitions, 90 flow [2023-08-26 06:54:54,368 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=25, PETRI_TRANSITIONS=24} [2023-08-26 06:54:54,370 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 3 predicate places. [2023-08-26 06:54:54,370 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 24 transitions, 90 flow [2023-08-26 06:54:54,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2023-08-26 06:54:54,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:54:54,371 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:54:54,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 06:54:54,371 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 06:54:54,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:54:54,372 INFO L85 PathProgramCache]: Analyzing trace with hash -306997248, now seen corresponding path program 1 times [2023-08-26 06:54:54,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:54:54,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453237190] [2023-08-26 06:54:54,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:54:54,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:54:54,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:54:54,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:54:54,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:54:54,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453237190] [2023-08-26 06:54:54,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453237190] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:54:54,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:54:54,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:54:54,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557037268] [2023-08-26 06:54:54,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:54:54,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:54:54,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:54:54,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:54:54,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:54:54,409 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 89 [2023-08-26 06:54:54,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 24 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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) [2023-08-26 06:54:54,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:54:54,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 89 [2023-08-26 06:54:54,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:54:54,468 INFO L124 PetriNetUnfolderBase]: 43/122 cut-off events. [2023-08-26 06:54:54,468 INFO L125 PetriNetUnfolderBase]: For 62/64 co-relation queries the response was YES. [2023-08-26 06:54:54,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 122 events. 43/122 cut-off events. For 62/64 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 466 event pairs, 18 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 305. Up to 92 conditions per place. [2023-08-26 06:54:54,471 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 23 selfloop transitions, 6 changer transitions 1/33 dead transitions. [2023-08-26 06:54:54,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 33 transitions, 184 flow [2023-08-26 06:54:54,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:54:54,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:54:54,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 138 transitions. [2023-08-26 06:54:54,478 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5168539325842697 [2023-08-26 06:54:54,478 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 138 transitions. [2023-08-26 06:54:54,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 138 transitions. [2023-08-26 06:54:54,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:54:54,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 138 transitions. [2023-08-26 06:54:54,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2023-08-26 06:54:54,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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) [2023-08-26 06:54:54,481 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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) [2023-08-26 06:54:54,481 INFO L175 Difference]: Start difference. First operand has 25 places, 24 transitions, 90 flow. Second operand 3 states and 138 transitions. [2023-08-26 06:54:54,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 33 transitions, 184 flow [2023-08-26 06:54:54,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 33 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 06:54:54,484 INFO L231 Difference]: Finished difference. Result has 26 places, 28 transitions, 120 flow [2023-08-26 06:54:54,484 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=26, PETRI_TRANSITIONS=28} [2023-08-26 06:54:54,485 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 4 predicate places. [2023-08-26 06:54:54,485 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 28 transitions, 120 flow [2023-08-26 06:54:54,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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) [2023-08-26 06:54:54,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:54:54,485 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:54:54,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 06:54:54,486 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 06:54:54,486 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:54:54,486 INFO L85 PathProgramCache]: Analyzing trace with hash -124255855, now seen corresponding path program 1 times [2023-08-26 06:54:54,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:54:54,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826022561] [2023-08-26 06:54:54,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:54:54,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:54:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:54:54,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:54:54,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:54:54,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826022561] [2023-08-26 06:54:54,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826022561] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:54:54,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:54:54,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:54:54,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081017586] [2023-08-26 06:54:54,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:54:54,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:54:54,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:54:54,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:54:54,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:54:54,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 89 [2023-08-26 06:54:54,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 28 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2023-08-26 06:54:54,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:54:54,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 89 [2023-08-26 06:54:54,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:54:54,597 INFO L124 PetriNetUnfolderBase]: 38/112 cut-off events. [2023-08-26 06:54:54,597 INFO L125 PetriNetUnfolderBase]: For 79/85 co-relation queries the response was YES. [2023-08-26 06:54:54,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 112 events. 38/112 cut-off events. For 79/85 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 421 event pairs, 11 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 312. Up to 86 conditions per place. [2023-08-26 06:54:54,598 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 20 selfloop transitions, 7 changer transitions 6/36 dead transitions. [2023-08-26 06:54:54,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 36 transitions, 222 flow [2023-08-26 06:54:54,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:54:54,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:54:54,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2023-08-26 06:54:54,599 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5243445692883895 [2023-08-26 06:54:54,599 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 140 transitions. [2023-08-26 06:54:54,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 140 transitions. [2023-08-26 06:54:54,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:54:54,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 140 transitions. [2023-08-26 06:54:54,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2023-08-26 06:54:54,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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) [2023-08-26 06:54:54,601 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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) [2023-08-26 06:54:54,601 INFO L175 Difference]: Start difference. First operand has 26 places, 28 transitions, 120 flow. Second operand 3 states and 140 transitions. [2023-08-26 06:54:54,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 36 transitions, 222 flow [2023-08-26 06:54:54,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 36 transitions, 214 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:54:54,603 INFO L231 Difference]: Finished difference. Result has 28 places, 28 transitions, 141 flow [2023-08-26 06:54:54,603 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=141, PETRI_PLACES=28, PETRI_TRANSITIONS=28} [2023-08-26 06:54:54,604 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 6 predicate places. [2023-08-26 06:54:54,604 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 28 transitions, 141 flow [2023-08-26 06:54:54,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2023-08-26 06:54:54,604 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:54:54,605 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:54:54,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 06:54:54,605 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 06:54:54,605 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:54:54,605 INFO L85 PathProgramCache]: Analyzing trace with hash -870166532, now seen corresponding path program 1 times [2023-08-26 06:54:54,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:54:54,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448593197] [2023-08-26 06:54:54,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:54:54,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:54:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 06:54:54,637 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 06:54:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 06:54:54,656 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 06:54:54,659 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 06:54:54,660 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-26 06:54:54,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-26 06:54:54,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2023-08-26 06:54:54,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-08-26 06:54:54,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-26 06:54:54,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-26 06:54:54,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-26 06:54:54,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 06:54:54,664 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-26 06:54:54,670 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 06:54:54,670 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 06:54:54,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 06:54:54 BasicIcfg [2023-08-26 06:54:54,694 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 06:54:54,695 INFO L158 Benchmark]: Toolchain (without parser) took 2671.03ms. Allocated memory was 348.1MB in the beginning and 444.6MB in the end (delta: 96.5MB). Free memory was 321.9MB in the beginning and 375.0MB in the end (delta: -53.1MB). Peak memory consumption was 42.4MB. Max. memory is 16.0GB. [2023-08-26 06:54:54,696 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 348.1MB. Free memory is still 324.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 06:54:54,696 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.93ms. Allocated memory is still 348.1MB. Free memory was 321.9MB in the beginning and 294.8MB in the end (delta: 27.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-26 06:54:54,696 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.54ms. Allocated memory is still 348.1MB. Free memory was 294.8MB in the beginning and 292.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 06:54:54,697 INFO L158 Benchmark]: Boogie Preprocessor took 24.23ms. Allocated memory is still 348.1MB. Free memory was 292.7MB in the beginning and 291.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 06:54:54,698 INFO L158 Benchmark]: RCFGBuilder took 313.68ms. Allocated memory is still 348.1MB. Free memory was 291.6MB in the beginning and 279.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-26 06:54:54,700 INFO L158 Benchmark]: TraceAbstraction took 1864.45ms. Allocated memory was 348.1MB in the beginning and 444.6MB in the end (delta: 96.5MB). Free memory was 279.0MB in the beginning and 375.0MB in the end (delta: -96.0MB). Peak memory consumption was 503.1kB. Max. memory is 16.0GB. [2023-08-26 06:54:54,705 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 348.1MB. Free memory is still 324.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 420.93ms. Allocated memory is still 348.1MB. Free memory was 321.9MB in the beginning and 294.8MB in the end (delta: 27.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.54ms. Allocated memory is still 348.1MB. Free memory was 294.8MB in the beginning and 292.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 24.23ms. Allocated memory is still 348.1MB. Free memory was 292.7MB in the beginning and 291.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 313.68ms. Allocated memory is still 348.1MB. Free memory was 291.6MB in the beginning and 279.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 1864.45ms. Allocated memory was 348.1MB in the beginning and 444.6MB in the end (delta: 96.5MB). Free memory was 279.0MB in the beginning and 375.0MB in the end (delta: -96.0MB). Peak memory consumption was 503.1kB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 261]: Unsoundness Warning unspecified type, defaulting to int C: short [261] - GenericResultAtLocation [Line: 261]: Unsoundness Warning unspecified type, defaulting to int C: short [261] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1s, 57 PlacesBefore, 22 PlacesAfterwards, 53 TransitionsBefore, 18 TransitionsAfterwards, 612 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 35 TotalNumberOfCompositions, 1779 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 758, independent: 608, independent conditional: 0, independent unconditional: 608, dependent: 150, dependent conditional: 0, dependent unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 315, independent: 286, independent conditional: 0, independent unconditional: 286, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 758, independent: 322, independent conditional: 0, independent unconditional: 322, dependent: 121, dependent conditional: 0, dependent unconditional: 121, unknown: 315, unknown conditional: 0, unknown unconditional: 315] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 991]: Data race detected Data race detected The following path leads to a data race: [L987] 0 int glob; [L988] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L996] 0 pthread_t id; [L997] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob=0, id={2:0}, mutex={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L998] 0 glob++ VAL [arg={0:0}, glob=0, id={2:0}, mutex={1:0}] [L991] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=0, mutex={1:0}] [L998] 0 glob++ VAL [arg={0:0}, arg={0:0}, glob++=0, glob++=25, glob=1, id={2:0}, mutex={1:0}] [L991] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, mutex={1:0}] Now there is a data race on ~glob~0 between C: glob++ [998] and C: glob++ [991] - UnprovableResult [Line: 998]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 998]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 997]: 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: 991]: 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, 74 locations, 7 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: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 87 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 18 mSDtfsCounter, 87 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=141occurred in iteration=3, InterpolantAutomatonStates: 9, 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, 0.1s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2023-08-26 06:54:54,739 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...