/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/00-sanity_09-include.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 03:13:08,670 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 03:13:08,745 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 03:13:08,754 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 03:13:08,754 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 03:13:08,778 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 03:13:08,778 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 03:13:08,779 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 03:13:08,779 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 03:13:08,780 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 03:13:08,780 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 03:13:08,780 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 03:13:08,781 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 03:13:08,781 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 03:13:08,781 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 03:13:08,781 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 03:13:08,782 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 03:13:08,782 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 03:13:08,782 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 03:13:08,783 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 03:13:08,783 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 03:13:08,787 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 03:13:08,787 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 03:13:08,788 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 03:13:08,791 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 03:13:08,792 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 03:13:08,792 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 03:13:08,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:13:08,792 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 03:13:08,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 03:13:08,794 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 03:13:08,794 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 03:13:08,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 03:13:08,794 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 03:13:08,794 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 03:13:08,795 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 03:13:09,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 03:13:09,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 03:13:09,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 03:13:09,142 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 03:13:09,143 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 03:13:09,144 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/00-sanity_09-include.i [2023-08-25 03:13:10,348 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 03:13:10,681 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 03:13:10,682 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/00-sanity_09-include.i [2023-08-25 03:13:10,704 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36a0155a7/9abb485d1b1f4bf190035e1e1d3a11a0/FLAG5a308f937 [2023-08-25 03:13:10,720 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36a0155a7/9abb485d1b1f4bf190035e1e1d3a11a0 [2023-08-25 03:13:10,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 03:13:10,726 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 03:13:10,729 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 03:13:10,730 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 03:13:10,732 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 03:13:10,733 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:13:10" (1/1) ... [2023-08-25 03:13:10,734 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29e881c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:13:10, skipping insertion in model container [2023-08-25 03:13:10,735 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:13:10" (1/1) ... [2023-08-25 03:13:10,784 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 03:13:11,154 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:13:11,169 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 03:13:11,193 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [261] [2023-08-25 03:13:11,195 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [261] [2023-08-25 03:13:11,218 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:13:11,272 INFO L206 MainTranslator]: Completed translation [2023-08-25 03:13:11,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:13:11 WrapperNode [2023-08-25 03:13:11,272 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 03:13:11,273 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 03:13:11,273 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 03:13:11,273 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 03:13:11,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:13:11" (1/1) ... [2023-08-25 03:13:11,294 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:13:11" (1/1) ... [2023-08-25 03:13:11,309 INFO L138 Inliner]: procedures = 264, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2023-08-25 03:13:11,310 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 03:13:11,310 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 03:13:11,310 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 03:13:11,310 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 03:13:11,316 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:13:11" (1/1) ... [2023-08-25 03:13:11,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:13:11" (1/1) ... [2023-08-25 03:13:11,319 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:13:11" (1/1) ... [2023-08-25 03:13:11,319 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:13:11" (1/1) ... [2023-08-25 03:13:11,323 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:13:11" (1/1) ... [2023-08-25 03:13:11,324 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:13:11" (1/1) ... [2023-08-25 03:13:11,325 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:13:11" (1/1) ... [2023-08-25 03:13:11,326 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:13:11" (1/1) ... [2023-08-25 03:13:11,328 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 03:13:11,329 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 03:13:11,329 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 03:13:11,329 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 03:13:11,330 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:13:11" (1/1) ... [2023-08-25 03:13:11,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:13:11,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:13:11,357 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 03:13:11,367 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 03:13:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 03:13:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 03:13:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 03:13:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 03:13:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 03:13:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 03:13:11,386 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 03:13:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 03:13:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 03:13:11,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 03:13:11,388 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 03:13:11,508 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 03:13:11,510 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 03:13:11,664 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 03:13:11,672 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 03:13:11,673 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 03:13:11,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:13:11 BoogieIcfgContainer [2023-08-25 03:13:11,675 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 03:13:11,676 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 03:13:11,677 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 03:13:11,679 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 03:13:11,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:13:10" (1/3) ... [2023-08-25 03:13:11,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0785f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:13:11, skipping insertion in model container [2023-08-25 03:13:11,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:13:11" (2/3) ... [2023-08-25 03:13:11,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0785f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:13:11, skipping insertion in model container [2023-08-25 03:13:11,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:13:11" (3/3) ... [2023-08-25 03:13:11,681 INFO L112 eAbstractionObserver]: Analyzing ICFG 00-sanity_09-include.i [2023-08-25 03:13:11,701 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 03:13:11,701 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-25 03:13:11,701 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 03:13:11,772 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 03:13:11,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 54 transitions, 113 flow [2023-08-25 03:13:11,852 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2023-08-25 03:13:11,852 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:13:11,855 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. [2023-08-25 03:13:11,855 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 54 transitions, 113 flow [2023-08-25 03:13:11,858 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 53 transitions, 109 flow [2023-08-25 03:13:11,861 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 03:13:11,868 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 53 transitions, 109 flow [2023-08-25 03:13:11,871 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 53 transitions, 109 flow [2023-08-25 03:13:11,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 53 transitions, 109 flow [2023-08-25 03:13:11,888 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2023-08-25 03:13:11,888 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:13:11,888 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. [2023-08-25 03:13:11,890 INFO L119 LiptonReduction]: Number of co-enabled transitions 612 [2023-08-25 03:13:13,169 INFO L134 LiptonReduction]: Checked pairs total: 1779 [2023-08-25 03:13:13,169 INFO L136 LiptonReduction]: Total number of compositions: 35 [2023-08-25 03:13:13,180 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 03:13:13,186 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;@670fb73a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 03:13:13,186 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-25 03:13:13,188 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 03:13:13,188 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2023-08-25 03:13:13,188 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:13:13,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:13:13,189 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-25 03:13:13,189 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:13:13,193 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:13:13,194 INFO L85 PathProgramCache]: Analyzing trace with hash 5845720, now seen corresponding path program 1 times [2023-08-25 03:13:13,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:13:13,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956724764] [2023-08-25 03:13:13,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:13:13,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:13:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:13:13,364 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 03:13:13,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:13:13,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956724764] [2023-08-25 03:13:13,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956724764] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:13:13,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:13:13,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:13:13,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160174650] [2023-08-25 03:13:13,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:13:13,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:13:13,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:13:13,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:13:13,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:13:13,392 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 89 [2023-08-25 03:13:13,393 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) [2023-08-25 03:13:13,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:13:13,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 89 [2023-08-25 03:13:13,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:13:13,472 INFO L124 PetriNetUnfolderBase]: 44/124 cut-off events. [2023-08-25 03:13:13,472 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:13:13,474 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. [2023-08-25 03:13:13,477 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 20 selfloop transitions, 6 changer transitions 0/29 dead transitions. [2023-08-25 03:13:13,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 29 transitions, 113 flow [2023-08-25 03:13:13,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:13:13,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:13:13,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2023-08-25 03:13:13,490 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5655430711610487 [2023-08-25 03:13:13,491 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 151 transitions. [2023-08-25 03:13:13,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 151 transitions. [2023-08-25 03:13:13,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:13:13,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 151 transitions. [2023-08-25 03:13:13,500 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) [2023-08-25 03:13:13,505 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) [2023-08-25 03:13:13,505 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) [2023-08-25 03:13:13,506 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 39 flow. Second operand 3 states and 151 transitions. [2023-08-25 03:13:13,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 29 transitions, 113 flow [2023-08-25 03:13:13,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 29 transitions, 112 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:13:13,509 INFO L231 Difference]: Finished difference. Result has 25 places, 24 transitions, 90 flow [2023-08-25 03:13:13,511 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} [2023-08-25 03:13:13,514 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 3 predicate places. [2023-08-25 03:13:13,514 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 24 transitions, 90 flow [2023-08-25 03:13:13,514 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) [2023-08-25 03:13:13,515 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:13:13,515 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:13:13,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 03:13:13,515 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)] === [2023-08-25 03:13:13,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:13:13,522 INFO L85 PathProgramCache]: Analyzing trace with hash -306997248, now seen corresponding path program 1 times [2023-08-25 03:13:13,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:13:13,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369071220] [2023-08-25 03:13:13,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:13:13,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:13:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:13:13,591 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 03:13:13,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:13:13,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369071220] [2023-08-25 03:13:13,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369071220] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:13:13,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:13:13,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:13:13,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317968124] [2023-08-25 03:13:13,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:13:13,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:13:13,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:13:13,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:13:13,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:13:13,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 89 [2023-08-25 03:13:13,595 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) [2023-08-25 03:13:13,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:13:13,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 89 [2023-08-25 03:13:13,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:13:13,640 INFO L124 PetriNetUnfolderBase]: 43/122 cut-off events. [2023-08-25 03:13:13,640 INFO L125 PetriNetUnfolderBase]: For 62/64 co-relation queries the response was YES. [2023-08-25 03:13:13,641 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. [2023-08-25 03:13:13,642 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 23 selfloop transitions, 6 changer transitions 1/33 dead transitions. [2023-08-25 03:13:13,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 33 transitions, 184 flow [2023-08-25 03:13:13,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:13:13,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:13:13,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 138 transitions. [2023-08-25 03:13:13,645 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5168539325842697 [2023-08-25 03:13:13,645 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 138 transitions. [2023-08-25 03:13:13,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 138 transitions. [2023-08-25 03:13:13,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:13:13,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 138 transitions. [2023-08-25 03:13:13,646 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) [2023-08-25 03:13:13,647 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) [2023-08-25 03:13:13,647 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) [2023-08-25 03:13:13,647 INFO L175 Difference]: Start difference. First operand has 25 places, 24 transitions, 90 flow. Second operand 3 states and 138 transitions. [2023-08-25 03:13:13,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 33 transitions, 184 flow [2023-08-25 03:13:13,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 33 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 03:13:13,649 INFO L231 Difference]: Finished difference. Result has 26 places, 28 transitions, 120 flow [2023-08-25 03:13:13,650 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} [2023-08-25 03:13:13,650 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 4 predicate places. [2023-08-25 03:13:13,650 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 28 transitions, 120 flow [2023-08-25 03:13:13,651 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) [2023-08-25 03:13:13,651 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:13:13,651 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:13:13,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 03:13:13,651 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)] === [2023-08-25 03:13:13,652 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:13:13,652 INFO L85 PathProgramCache]: Analyzing trace with hash -124255855, now seen corresponding path program 1 times [2023-08-25 03:13:13,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:13:13,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867149396] [2023-08-25 03:13:13,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:13:13,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:13:13,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:13:13,726 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 03:13:13,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:13:13,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867149396] [2023-08-25 03:13:13,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867149396] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:13:13,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:13:13,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:13:13,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424663110] [2023-08-25 03:13:13,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:13:13,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:13:13,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:13:13,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:13:13,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:13:13,730 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 89 [2023-08-25 03:13:13,730 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) [2023-08-25 03:13:13,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:13:13,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 89 [2023-08-25 03:13:13,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:13:13,791 INFO L124 PetriNetUnfolderBase]: 38/112 cut-off events. [2023-08-25 03:13:13,792 INFO L125 PetriNetUnfolderBase]: For 79/85 co-relation queries the response was YES. [2023-08-25 03:13:13,792 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. [2023-08-25 03:13:13,793 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 20 selfloop transitions, 7 changer transitions 6/36 dead transitions. [2023-08-25 03:13:13,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 36 transitions, 222 flow [2023-08-25 03:13:13,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:13:13,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:13:13,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2023-08-25 03:13:13,796 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5243445692883895 [2023-08-25 03:13:13,796 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 140 transitions. [2023-08-25 03:13:13,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 140 transitions. [2023-08-25 03:13:13,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:13:13,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 140 transitions. [2023-08-25 03:13:13,797 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) [2023-08-25 03:13:13,798 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) [2023-08-25 03:13:13,799 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) [2023-08-25 03:13:13,799 INFO L175 Difference]: Start difference. First operand has 26 places, 28 transitions, 120 flow. Second operand 3 states and 140 transitions. [2023-08-25 03:13:13,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 36 transitions, 222 flow [2023-08-25 03:13:13,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 36 transitions, 214 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:13:13,801 INFO L231 Difference]: Finished difference. Result has 28 places, 28 transitions, 141 flow [2023-08-25 03:13:13,802 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} [2023-08-25 03:13:13,802 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 6 predicate places. [2023-08-25 03:13:13,803 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 28 transitions, 141 flow [2023-08-25 03:13:13,803 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) [2023-08-25 03:13:13,803 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:13:13,803 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:13:13,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 03:13:13,804 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)] === [2023-08-25 03:13:13,804 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:13:13,804 INFO L85 PathProgramCache]: Analyzing trace with hash -870166532, now seen corresponding path program 1 times [2023-08-25 03:13:13,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:13:13,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601293471] [2023-08-25 03:13:13,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:13:13,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:13:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 03:13:13,847 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 03:13:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 03:13:13,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 03:13:13,889 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 03:13:13,890 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-25 03:13:13,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-25 03:13:13,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2023-08-25 03:13:13,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-08-25 03:13:13,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-25 03:13:13,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-25 03:13:13,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-25 03:13:13,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 03:13:13,897 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-25 03:13:13,911 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 03:13:13,911 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 03:13:13,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:13:13 BasicIcfg [2023-08-25 03:13:13,941 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 03:13:13,942 INFO L158 Benchmark]: Toolchain (without parser) took 3215.73ms. Allocated memory was 346.0MB in the beginning and 438.3MB in the end (delta: 92.3MB). Free memory was 321.0MB in the beginning and 396.7MB in the end (delta: -75.7MB). Peak memory consumption was 17.6MB. Max. memory is 16.0GB. [2023-08-25 03:13:13,942 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 346.0MB. Free memory is still 322.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:13:13,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 542.96ms. Allocated memory is still 346.0MB. Free memory was 321.0MB in the beginning and 294.1MB in the end (delta: 26.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-25 03:13:13,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.64ms. Allocated memory is still 346.0MB. Free memory was 294.1MB in the beginning and 292.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:13:13,944 INFO L158 Benchmark]: Boogie Preprocessor took 18.00ms. Allocated memory is still 346.0MB. Free memory was 292.1MB in the beginning and 290.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:13:13,946 INFO L158 Benchmark]: RCFGBuilder took 345.84ms. Allocated memory is still 346.0MB. Free memory was 290.8MB in the beginning and 278.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 03:13:13,948 INFO L158 Benchmark]: TraceAbstraction took 2264.40ms. Allocated memory was 346.0MB in the beginning and 438.3MB in the end (delta: 92.3MB). Free memory was 277.9MB in the beginning and 396.7MB in the end (delta: -118.7MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:13:13,955 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 346.0MB. Free memory is still 322.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 542.96ms. Allocated memory is still 346.0MB. Free memory was 321.0MB in the beginning and 294.1MB in the end (delta: 26.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 36.64ms. Allocated memory is still 346.0MB. Free memory was 294.1MB in the beginning and 292.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 18.00ms. Allocated memory is still 346.0MB. Free memory was 292.1MB in the beginning and 290.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 345.84ms. Allocated memory is still 346.0MB. Free memory was 290.8MB in the beginning and 278.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2264.40ms. Allocated memory was 346.0MB in the beginning and 438.3MB in the end (delta: 92.3MB). Free memory was 277.9MB in the beginning and 396.7MB in the end (delta: -118.7MB). There was no memory consumed. 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: 1.3s, 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: 2.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, 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, 0.2s 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! [2023-08-25 03:13:13,994 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...