/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/05-lval_ls_05-glob_idx_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 03:16:52,286 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 03:16:52,365 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 03:16:52,370 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 03:16:52,371 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 03:16:52,402 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 03:16:52,403 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 03:16:52,403 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 03:16:52,404 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 03:16:52,407 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 03:16:52,407 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 03:16:52,408 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 03:16:52,408 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 03:16:52,409 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 03:16:52,409 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 03:16:52,409 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 03:16:52,410 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 03:16:52,410 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 03:16:52,410 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 03:16:52,410 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 03:16:52,410 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 03:16:52,411 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 03:16:52,411 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 03:16:52,412 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 03:16:52,412 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 03:16:52,412 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 03:16:52,412 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 03:16:52,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:16:52,413 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 03:16:52,413 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 03:16:52,414 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 03:16:52,414 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 03:16:52,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 03:16:52,414 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 03:16:52,415 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 03:16:52,415 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 03:16:52,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 03:16:52,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 03:16:52,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 03:16:52,766 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 03:16:52,766 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 03:16:52,767 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_05-glob_idx_rc.i [2023-08-25 03:16:54,003 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 03:16:54,248 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 03:16:54,248 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_05-glob_idx_rc.i [2023-08-25 03:16:54,279 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/797d18c86/9a1e5080e45840e094c0e0ef66361120/FLAG83b699c5c [2023-08-25 03:16:54,294 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/797d18c86/9a1e5080e45840e094c0e0ef66361120 [2023-08-25 03:16:54,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 03:16:54,300 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 03:16:54,302 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 03:16:54,302 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 03:16:54,305 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 03:16:54,306 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,307 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38859a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54, skipping insertion in model container [2023-08-25 03:16:54,307 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,355 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 03:16:54,641 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:16:54,650 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 03:16:54,677 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:16:54,679 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:16:54,709 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:16:54,743 INFO L206 MainTranslator]: Completed translation [2023-08-25 03:16:54,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54 WrapperNode [2023-08-25 03:16:54,744 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 03:16:54,744 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 03:16:54,745 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 03:16:54,745 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 03:16:54,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,780 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,803 INFO L138 Inliner]: procedures = 160, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2023-08-25 03:16:54,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 03:16:54,805 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 03:16:54,808 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 03:16:54,808 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 03:16:54,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,825 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,826 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,844 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,845 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,847 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,848 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,849 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 03:16:54,850 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 03:16:54,850 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 03:16:54,850 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 03:16:54,856 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (1/1) ... [2023-08-25 03:16:54,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:16:54,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:16:54,912 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 03:16:54,921 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 03:16:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 03:16:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 03:16:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 03:16:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 03:16:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 03:16:54,944 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 03:16:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 03:16:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 03:16:54,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 03:16:54,946 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 03:16:55,102 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 03:16:55,104 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 03:16:55,316 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 03:16:55,322 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 03:16:55,322 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 03:16:55,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:16:55 BoogieIcfgContainer [2023-08-25 03:16:55,324 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 03:16:55,326 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 03:16:55,326 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 03:16:55,331 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 03:16:55,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:16:54" (1/3) ... [2023-08-25 03:16:55,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392c7ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:16:55, skipping insertion in model container [2023-08-25 03:16:55,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:54" (2/3) ... [2023-08-25 03:16:55,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392c7ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:16:55, skipping insertion in model container [2023-08-25 03:16:55,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:16:55" (3/3) ... [2023-08-25 03:16:55,338 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_05-glob_idx_rc.i [2023-08-25 03:16:55,353 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 03:16:55,353 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-25 03:16:55,353 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 03:16:55,402 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 03:16:55,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 62 transitions, 129 flow [2023-08-25 03:16:55,479 INFO L124 PetriNetUnfolderBase]: 0/61 cut-off events. [2023-08-25 03:16:55,480 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:16:55,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 61 events. 0/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 03:16:55,483 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 62 transitions, 129 flow [2023-08-25 03:16:55,486 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 61 transitions, 125 flow [2023-08-25 03:16:55,505 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 03:16:55,512 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 61 transitions, 125 flow [2023-08-25 03:16:55,514 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 61 transitions, 125 flow [2023-08-25 03:16:55,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 61 transitions, 125 flow [2023-08-25 03:16:55,555 INFO L124 PetriNetUnfolderBase]: 0/61 cut-off events. [2023-08-25 03:16:55,555 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:16:55,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 61 events. 0/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 03:16:55,557 INFO L119 LiptonReduction]: Number of co-enabled transitions 1144 [2023-08-25 03:16:56,486 INFO L134 LiptonReduction]: Checked pairs total: 4531 [2023-08-25 03:16:56,486 INFO L136 LiptonReduction]: Total number of compositions: 31 [2023-08-25 03:16:56,500 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 03:16:56,506 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;@31393b9c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 03:16:56,506 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-25 03:16:56,510 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 03:16:56,511 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2023-08-25 03:16:56,511 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:16:56,512 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:16:56,513 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:16:56,513 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:16:56,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:16:56,516 INFO L85 PathProgramCache]: Analyzing trace with hash -367688324, now seen corresponding path program 1 times [2023-08-25 03:16:56,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:16:56,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150927824] [2023-08-25 03:16:56,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:16:56,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:16:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:16:57,106 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 03:16:57,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:16:57,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150927824] [2023-08-25 03:16:57,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150927824] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:16:57,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:16:57,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:16:57,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710270267] [2023-08-25 03:16:57,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:16:57,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:16:57,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:16:57,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:16:57,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:16:57,146 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 93 [2023-08-25 03:16:57,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 63 flow. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 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 03:16:57,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:16:57,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 93 [2023-08-25 03:16:57,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:16:57,590 INFO L124 PetriNetUnfolderBase]: 331/714 cut-off events. [2023-08-25 03:16:57,590 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:16:57,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1433 conditions, 714 events. 331/714 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3596 event pairs, 77 based on Foata normal form. 0/612 useless extension candidates. Maximal degree in co-relation 1424. Up to 287 conditions per place. [2023-08-25 03:16:57,604 INFO L140 encePairwiseOnDemand]: 71/93 looper letters, 98 selfloop transitions, 42 changer transitions 0/140 dead transitions. [2023-08-25 03:16:57,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 140 transitions, 563 flow [2023-08-25 03:16:57,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:16:57,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:16:57,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 328 transitions. [2023-08-25 03:16:57,620 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5878136200716846 [2023-08-25 03:16:57,621 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 328 transitions. [2023-08-25 03:16:57,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 328 transitions. [2023-08-25 03:16:57,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:16:57,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 328 transitions. [2023-08-25 03:16:57,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 54.666666666666664) internal successors, (328), 6 states have internal predecessors, (328), 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 03:16:57,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 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 03:16:57,636 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 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 03:16:57,638 INFO L175 Difference]: Start difference. First operand has 34 places, 30 transitions, 63 flow. Second operand 6 states and 328 transitions. [2023-08-25 03:16:57,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 140 transitions, 563 flow [2023-08-25 03:16:57,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 140 transitions, 562 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:16:57,646 INFO L231 Difference]: Finished difference. Result has 43 places, 76 transitions, 378 flow [2023-08-25 03:16:57,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=378, PETRI_PLACES=43, PETRI_TRANSITIONS=76} [2023-08-25 03:16:57,651 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 9 predicate places. [2023-08-25 03:16:57,652 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 76 transitions, 378 flow [2023-08-25 03:16:57,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 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 03:16:57,653 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:16:57,653 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:16:57,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 03:16:57,654 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:16:57,654 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:16:57,654 INFO L85 PathProgramCache]: Analyzing trace with hash -2126461452, now seen corresponding path program 1 times [2023-08-25 03:16:57,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:16:57,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252065786] [2023-08-25 03:16:57,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:16:57,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:16:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:16:57,949 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 03:16:57,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:16:57,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252065786] [2023-08-25 03:16:57,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252065786] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:16:57,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:16:57,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:16:57,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922526391] [2023-08-25 03:16:57,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:16:57,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:16:57,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:16:57,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:16:57,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:16:57,953 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 93 [2023-08-25 03:16:57,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 76 transitions, 378 flow. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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 03:16:57,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:16:57,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 93 [2023-08-25 03:16:57,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:16:58,218 INFO L124 PetriNetUnfolderBase]: 419/901 cut-off events. [2023-08-25 03:16:58,218 INFO L125 PetriNetUnfolderBase]: For 512/512 co-relation queries the response was YES. [2023-08-25 03:16:58,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2834 conditions, 901 events. 419/901 cut-off events. For 512/512 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4748 event pairs, 129 based on Foata normal form. 23/924 useless extension candidates. Maximal degree in co-relation 2821. Up to 656 conditions per place. [2023-08-25 03:16:58,226 INFO L140 encePairwiseOnDemand]: 77/93 looper letters, 110 selfloop transitions, 46 changer transitions 3/159 dead transitions. [2023-08-25 03:16:58,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 159 transitions, 1048 flow [2023-08-25 03:16:58,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:16:58,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:16:58,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 277 transitions. [2023-08-25 03:16:58,229 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.496415770609319 [2023-08-25 03:16:58,229 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 277 transitions. [2023-08-25 03:16:58,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 277 transitions. [2023-08-25 03:16:58,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:16:58,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 277 transitions. [2023-08-25 03:16:58,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 46.166666666666664) internal successors, (277), 6 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 03:16:58,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 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 03:16:58,232 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 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 03:16:58,232 INFO L175 Difference]: Start difference. First operand has 43 places, 76 transitions, 378 flow. Second operand 6 states and 277 transitions. [2023-08-25 03:16:58,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 159 transitions, 1048 flow [2023-08-25 03:16:58,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 159 transitions, 1048 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 03:16:58,239 INFO L231 Difference]: Finished difference. Result has 52 places, 119 transitions, 801 flow [2023-08-25 03:16:58,240 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=801, PETRI_PLACES=52, PETRI_TRANSITIONS=119} [2023-08-25 03:16:58,240 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 18 predicate places. [2023-08-25 03:16:58,240 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 119 transitions, 801 flow [2023-08-25 03:16:58,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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 03:16:58,241 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:16:58,241 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:16:58,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 03:16:58,241 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:16:58,242 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:16:58,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1119890683, now seen corresponding path program 1 times [2023-08-25 03:16:58,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:16:58,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315207809] [2023-08-25 03:16:58,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:16:58,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:16:58,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:16:58,428 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 03:16:58,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:16:58,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315207809] [2023-08-25 03:16:58,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315207809] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:16:58,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:16:58,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:16:58,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685508245] [2023-08-25 03:16:58,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:16:58,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:16:58,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:16:58,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:16:58,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:16:58,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 93 [2023-08-25 03:16:58,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 119 transitions, 801 flow. Second operand has 6 states, 6 states have (on average 30.333333333333332) internal successors, (182), 6 states have internal predecessors, (182), 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 03:16:58,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:16:58,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 93 [2023-08-25 03:16:58,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:16:58,729 INFO L124 PetriNetUnfolderBase]: 476/1032 cut-off events. [2023-08-25 03:16:58,730 INFO L125 PetriNetUnfolderBase]: For 1523/1523 co-relation queries the response was YES. [2023-08-25 03:16:58,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4028 conditions, 1032 events. 476/1032 cut-off events. For 1523/1523 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 5653 event pairs, 137 based on Foata normal form. 23/1055 useless extension candidates. Maximal degree in co-relation 4010. Up to 777 conditions per place. [2023-08-25 03:16:58,737 INFO L140 encePairwiseOnDemand]: 77/93 looper letters, 136 selfloop transitions, 49 changer transitions 16/201 dead transitions. [2023-08-25 03:16:58,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 201 transitions, 1647 flow [2023-08-25 03:16:58,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:16:58,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:16:58,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 271 transitions. [2023-08-25 03:16:58,739 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48566308243727596 [2023-08-25 03:16:58,739 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 271 transitions. [2023-08-25 03:16:58,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 271 transitions. [2023-08-25 03:16:58,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:16:58,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 271 transitions. [2023-08-25 03:16:58,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 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 03:16:58,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 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 03:16:58,742 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 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 03:16:58,742 INFO L175 Difference]: Start difference. First operand has 52 places, 119 transitions, 801 flow. Second operand 6 states and 271 transitions. [2023-08-25 03:16:58,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 201 transitions, 1647 flow [2023-08-25 03:16:58,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 201 transitions, 1613 flow, removed 17 selfloop flow, removed 0 redundant places. [2023-08-25 03:16:58,753 INFO L231 Difference]: Finished difference. Result has 61 places, 148 transitions, 1152 flow [2023-08-25 03:16:58,754 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=767, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1152, PETRI_PLACES=61, PETRI_TRANSITIONS=148} [2023-08-25 03:16:58,754 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 27 predicate places. [2023-08-25 03:16:58,754 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 148 transitions, 1152 flow [2023-08-25 03:16:58,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.333333333333332) internal successors, (182), 6 states have internal predecessors, (182), 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 03:16:58,755 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:16:58,755 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:16:58,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 03:16:58,755 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:16:58,756 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:16:58,756 INFO L85 PathProgramCache]: Analyzing trace with hash 895496813, now seen corresponding path program 1 times [2023-08-25 03:16:58,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:16:58,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503408409] [2023-08-25 03:16:58,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:16:58,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:16:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 03:16:58,772 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 03:16:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 03:16:58,798 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 03:16:58,798 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 03:16:58,799 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-25 03:16:58,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-25 03:16:58,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-25 03:16:58,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-08-25 03:16:58,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-25 03:16:58,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-25 03:16:58,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-25 03:16:58,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 03:16:58,802 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-25 03:16:58,807 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 03:16:58,807 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 03:16:58,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:16:58 BasicIcfg [2023-08-25 03:16:58,829 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 03:16:58,829 INFO L158 Benchmark]: Toolchain (without parser) took 4529.30ms. Allocated memory was 360.7MB in the beginning and 459.3MB in the end (delta: 98.6MB). Free memory was 336.4MB in the beginning and 354.1MB in the end (delta: -17.7MB). Peak memory consumption was 82.9MB. Max. memory is 16.0GB. [2023-08-25 03:16:58,830 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 360.7MB. Free memory is still 337.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:16:58,830 INFO L158 Benchmark]: CACSL2BoogieTranslator took 441.75ms. Allocated memory is still 360.7MB. Free memory was 335.9MB in the beginning and 317.8MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-25 03:16:58,830 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.70ms. Allocated memory is still 360.7MB. Free memory was 317.8MB in the beginning and 315.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:16:58,831 INFO L158 Benchmark]: Boogie Preprocessor took 44.86ms. Allocated memory is still 360.7MB. Free memory was 315.8MB in the beginning and 314.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:16:58,831 INFO L158 Benchmark]: RCFGBuilder took 473.79ms. Allocated memory is still 360.7MB. Free memory was 314.1MB in the beginning and 300.3MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-25 03:16:58,832 INFO L158 Benchmark]: TraceAbstraction took 3503.02ms. Allocated memory was 360.7MB in the beginning and 459.3MB in the end (delta: 98.6MB). Free memory was 299.4MB in the beginning and 354.1MB in the end (delta: -54.7MB). Peak memory consumption was 45.2MB. Max. memory is 16.0GB. [2023-08-25 03:16:58,833 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 360.7MB. Free memory is still 337.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 441.75ms. Allocated memory is still 360.7MB. Free memory was 335.9MB in the beginning and 317.8MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 59.70ms. Allocated memory is still 360.7MB. Free memory was 317.8MB in the beginning and 315.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 44.86ms. Allocated memory is still 360.7MB. Free memory was 315.8MB in the beginning and 314.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 473.79ms. Allocated memory is still 360.7MB. Free memory was 314.1MB in the beginning and 300.3MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 3503.02ms. Allocated memory was 360.7MB in the beginning and 459.3MB in the end (delta: 98.6MB). Free memory was 299.4MB in the beginning and 354.1MB in the end (delta: -54.7MB). Peak memory consumption was 45.2MB. 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] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0s, 65 PlacesBefore, 34 PlacesAfterwards, 61 TransitionsBefore, 30 TransitionsAfterwards, 1144 CoEnabledTransitionPairs, 4 FixpointIterations, 11 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 31 TotalNumberOfCompositions, 4531 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 875, independent: 628, independent conditional: 0, independent unconditional: 628, dependent: 247, dependent conditional: 0, dependent unconditional: 247, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 447, independent: 412, independent conditional: 0, independent unconditional: 412, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 875, independent: 216, independent conditional: 0, independent unconditional: 216, dependent: 212, dependent conditional: 0, dependent unconditional: 212, unknown: 447, unknown conditional: 0, unknown unconditional: 447] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 21, Positive conditional cache size: 0, Positive unconditional cache size: 21, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 687]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int data[10]; [L685] 0 pthread_t id; [L686] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, id={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L681] EXPR 1 data[4] VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0] [L687] EXPR 0 data[4] VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, id={2:0}] [L681] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0] [L687] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, id={2:0}] [L681] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0] [L687] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, id={2:0}] [L681] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]++=0, data[4]=0] [L687] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]++=0, data[4]=0, data[4]=0, id={2:0}] [L687] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]++=0, data[4]++=41, data[4]=0, data[4]=0, id={2:0}] Now there is a data race (on the heap) between C: data[4]++ [681] and C: data[4]++ [687] - UnprovableResult [Line: 687]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 686]: 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: 681]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 681]: 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, 87 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: 3.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 78 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 89 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 649 IncrementalHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 89 mSolverCounterUnsat, 44 mSDtfsCounter, 649 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1152occurred in iteration=3, 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, 0.9s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 300 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! [2023-08-25 03:16:58,867 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...