/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_14-funarg_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:15:45,689 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:15:45,751 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 17:15:45,755 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:15:45,755 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:15:45,779 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:15:45,780 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:15:45,783 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:15:45,783 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:15:45,786 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:15:45,786 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:15:45,786 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:15:45,786 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:15:45,787 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:15:45,788 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:15:45,788 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:15:45,788 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:15:45,788 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:15:45,788 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:15:45,788 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:15:45,788 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:15:45,789 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:15:45,789 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:15:45,790 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:15:45,790 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:15:45,790 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:15:45,790 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:15:45,790 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:15:45,790 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:15:45,790 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:15:45,791 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:15:45,791 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:15:45,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:15:45,791 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:15:45,792 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:15:45,792 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:15:46,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:15:46,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:15:46,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:15:46,031 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:15:46,031 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:15:46,032 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_14-funarg_rc.i [2023-08-25 17:15:46,925 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:15:47,165 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:15:47,166 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_14-funarg_rc.i [2023-08-25 17:15:47,181 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/572508352/b7a7c2afa09d48289d965b903543e0af/FLAG3c381957b [2023-08-25 17:15:47,197 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/572508352/b7a7c2afa09d48289d965b903543e0af [2023-08-25 17:15:47,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:15:47,201 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:15:47,202 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:15:47,202 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:15:47,204 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:15:47,205 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:15:47" (1/1) ... [2023-08-25 17:15:47,206 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a5414e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:47, skipping insertion in model container [2023-08-25 17:15:47,206 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:15:47" (1/1) ... [2023-08-25 17:15:47,248 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:15:47,540 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:15:47,551 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:15:47,574 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 17:15:47,576 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 17:15:47,580 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [736] [2023-08-25 17:15:47,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:15:47,650 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:15:47,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:47 WrapperNode [2023-08-25 17:15:47,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:15:47,651 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:15:47,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:15:47,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:15:47,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:47" (1/1) ... [2023-08-25 17:15:47,680 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:47" (1/1) ... [2023-08-25 17:15:47,703 INFO L138 Inliner]: procedures = 263, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2023-08-25 17:15:47,703 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:15:47,704 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:15:47,704 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:15:47,705 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:15:47,710 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:47" (1/1) ... [2023-08-25 17:15:47,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:47" (1/1) ... [2023-08-25 17:15:47,718 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:47" (1/1) ... [2023-08-25 17:15:47,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:47" (1/1) ... [2023-08-25 17:15:47,728 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:47" (1/1) ... [2023-08-25 17:15:47,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:47" (1/1) ... [2023-08-25 17:15:47,729 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:47" (1/1) ... [2023-08-25 17:15:47,730 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:47" (1/1) ... [2023-08-25 17:15:47,731 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:15:47,732 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:15:47,732 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:15:47,732 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:15:47,733 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:47" (1/1) ... [2023-08-25 17:15:47,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:15:47,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:15:47,755 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 17:15:47,771 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 17:15:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:15:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:15:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 17:15:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:15:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:15:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:15:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 17:15:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 17:15:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 17:15:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:15:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:15:47,796 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 17:15:47,876 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:15:47,878 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:15:47,997 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:15:48,002 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:15:48,002 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 17:15:48,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:15:48 BoogieIcfgContainer [2023-08-25 17:15:48,003 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:15:48,004 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:15:48,005 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:15:48,007 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:15:48,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:15:47" (1/3) ... [2023-08-25 17:15:48,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6d05e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:15:48, skipping insertion in model container [2023-08-25 17:15:48,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:15:47" (2/3) ... [2023-08-25 17:15:48,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6d05e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:15:48, skipping insertion in model container [2023-08-25 17:15:48,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:15:48" (3/3) ... [2023-08-25 17:15:48,008 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_14-funarg_rc.i [2023-08-25 17:15:48,022 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:15:48,022 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-25 17:15:48,022 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:15:48,083 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 17:15:48,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 85 transitions, 178 flow [2023-08-25 17:15:48,155 INFO L124 PetriNetUnfolderBase]: 0/84 cut-off events. [2023-08-25 17:15:48,155 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 17:15:48,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 84 events. 0/84 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-25 17:15:48,158 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 85 transitions, 178 flow [2023-08-25 17:15:48,163 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 77 transitions, 157 flow [2023-08-25 17:15:48,166 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:15:48,174 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 77 transitions, 157 flow [2023-08-25 17:15:48,177 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 77 transitions, 157 flow [2023-08-25 17:15:48,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 77 transitions, 157 flow [2023-08-25 17:15:48,200 INFO L124 PetriNetUnfolderBase]: 0/77 cut-off events. [2023-08-25 17:15:48,200 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:15:48,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 0/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 17:15:48,201 INFO L119 LiptonReduction]: Number of co-enabled transitions 900 [2023-08-25 17:15:50,217 INFO L134 LiptonReduction]: Checked pairs total: 3378 [2023-08-25 17:15:50,218 INFO L136 LiptonReduction]: Total number of compositions: 55 [2023-08-25 17:15:50,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:15:50,229 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;@7c3da52f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:15:50,230 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-25 17:15:50,231 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:15:50,232 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-25 17:15:50,232 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:15:50,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:15:50,232 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 17:15:50,232 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-25 17:15:50,235 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:15:50,235 INFO L85 PathProgramCache]: Analyzing trace with hash 258843121, now seen corresponding path program 1 times [2023-08-25 17:15:50,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:15:50,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951724225] [2023-08-25 17:15:50,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:15:50,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:15:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:15:50,387 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 17:15:50,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:15:50,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951724225] [2023-08-25 17:15:50,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951724225] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:15:50,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:15:50,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:15:50,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769234935] [2023-08-25 17:15:50,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:15:50,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:15:50,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:15:50,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:15:50,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:15:50,416 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 140 [2023-08-25 17:15:50,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 23 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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 17:15:50,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:15:50,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 140 [2023-08-25 17:15:50,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:15:50,486 INFO L124 PetriNetUnfolderBase]: 76/197 cut-off events. [2023-08-25 17:15:50,486 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:15:50,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 197 events. 76/197 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 770 event pairs, 23 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 374. Up to 117 conditions per place. [2023-08-25 17:15:50,488 INFO L140 encePairwiseOnDemand]: 130/140 looper letters, 23 selfloop transitions, 6 changer transitions 2/33 dead transitions. [2023-08-25 17:15:50,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 33 transitions, 131 flow [2023-08-25 17:15:50,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:15:50,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:15:50,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 249 transitions. [2023-08-25 17:15:50,496 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5928571428571429 [2023-08-25 17:15:50,497 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 249 transitions. [2023-08-25 17:15:50,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 249 transitions. [2023-08-25 17:15:50,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:15:50,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 249 transitions. [2023-08-25 17:15:50,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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 17:15:50,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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 17:15:50,503 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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 17:15:50,504 INFO L175 Difference]: Start difference. First operand has 27 places, 23 transitions, 49 flow. Second operand 3 states and 249 transitions. [2023-08-25 17:15:50,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 33 transitions, 131 flow [2023-08-25 17:15:50,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 33 transitions, 130 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:15:50,507 INFO L231 Difference]: Finished difference. Result has 28 places, 26 transitions, 92 flow [2023-08-25 17:15:50,508 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=28, PETRI_TRANSITIONS=26} [2023-08-25 17:15:50,510 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2023-08-25 17:15:50,510 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 26 transitions, 92 flow [2023-08-25 17:15:50,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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 17:15:50,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:15:50,510 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:15:50,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:15:50,511 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-25 17:15:50,511 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:15:50,511 INFO L85 PathProgramCache]: Analyzing trace with hash 963342738, now seen corresponding path program 1 times [2023-08-25 17:15:50,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:15:50,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797410356] [2023-08-25 17:15:50,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:15:50,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:15:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:15:50,554 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 17:15:50,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:15:50,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797410356] [2023-08-25 17:15:50,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797410356] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:15:50,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:15:50,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:15:50,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519307880] [2023-08-25 17:15:50,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:15:50,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:15:50,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:15:50,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:15:50,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:15:50,557 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 140 [2023-08-25 17:15:50,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 26 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 17:15:50,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:15:50,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 140 [2023-08-25 17:15:50,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:15:50,594 INFO L124 PetriNetUnfolderBase]: 75/196 cut-off events. [2023-08-25 17:15:50,595 INFO L125 PetriNetUnfolderBase]: For 70/73 co-relation queries the response was YES. [2023-08-25 17:15:50,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 476 conditions, 196 events. 75/196 cut-off events. For 70/73 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 759 event pairs, 34 based on Foata normal form. 2/190 useless extension candidates. Maximal degree in co-relation 466. Up to 133 conditions per place. [2023-08-25 17:15:50,596 INFO L140 encePairwiseOnDemand]: 134/140 looper letters, 23 selfloop transitions, 5 changer transitions 10/40 dead transitions. [2023-08-25 17:15:50,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 40 transitions, 222 flow [2023-08-25 17:15:50,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:15:50,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:15:50,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 238 transitions. [2023-08-25 17:15:50,598 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2023-08-25 17:15:50,598 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 238 transitions. [2023-08-25 17:15:50,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 238 transitions. [2023-08-25 17:15:50,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:15:50,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 238 transitions. [2023-08-25 17:15:50,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:15:50,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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 17:15:50,600 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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 17:15:50,600 INFO L175 Difference]: Start difference. First operand has 28 places, 26 transitions, 92 flow. Second operand 3 states and 238 transitions. [2023-08-25 17:15:50,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 40 transitions, 222 flow [2023-08-25 17:15:50,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 40 transitions, 202 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 17:15:50,602 INFO L231 Difference]: Finished difference. Result has 30 places, 27 transitions, 112 flow [2023-08-25 17:15:50,602 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=30, PETRI_TRANSITIONS=27} [2023-08-25 17:15:50,602 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 3 predicate places. [2023-08-25 17:15:50,602 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 27 transitions, 112 flow [2023-08-25 17:15:50,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 17:15:50,603 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:15:50,603 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:15:50,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:15:50,603 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-25 17:15:50,603 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:15:50,603 INFO L85 PathProgramCache]: Analyzing trace with hash 431284918, now seen corresponding path program 1 times [2023-08-25 17:15:50,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:15:50,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833394375] [2023-08-25 17:15:50,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:15:50,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:15:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 17:15:50,620 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 17:15:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 17:15:50,643 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 17:15:50,643 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 17:15:50,644 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-08-25 17:15:50,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-08-25 17:15:50,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-08-25 17:15:50,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2023-08-25 17:15:50,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2023-08-25 17:15:50,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-08-25 17:15:50,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-08-25 17:15:50,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-08-25 17:15:50,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 17:15:50,648 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-25 17:15:50,652 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 17:15:50,652 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 17:15:50,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:15:50 BasicIcfg [2023-08-25 17:15:50,672 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 17:15:50,673 INFO L158 Benchmark]: Toolchain (without parser) took 3472.14ms. Allocated memory was 371.2MB in the beginning and 463.5MB in the end (delta: 92.3MB). Free memory was 345.3MB in the beginning and 337.7MB in the end (delta: 7.7MB). Peak memory consumption was 102.1MB. Max. memory is 16.0GB. [2023-08-25 17:15:50,673 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 371.2MB. Free memory was 349.0MB in the beginning and 348.8MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:15:50,673 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.74ms. Allocated memory is still 371.2MB. Free memory was 345.3MB in the beginning and 317.6MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-25 17:15:50,674 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.10ms. Allocated memory is still 371.2MB. Free memory was 317.6MB in the beginning and 315.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:15:50,674 INFO L158 Benchmark]: Boogie Preprocessor took 27.18ms. Allocated memory is still 371.2MB. Free memory was 315.5MB in the beginning and 314.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:15:50,675 INFO L158 Benchmark]: RCFGBuilder took 271.22ms. Allocated memory is still 371.2MB. Free memory was 314.2MB in the beginning and 299.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-25 17:15:50,676 INFO L158 Benchmark]: TraceAbstraction took 2667.94ms. Allocated memory was 371.2MB in the beginning and 463.5MB in the end (delta: 92.3MB). Free memory was 298.7MB in the beginning and 337.7MB in the end (delta: -39.0MB). Peak memory consumption was 55.9MB. Max. memory is 16.0GB. [2023-08-25 17:15:50,678 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 371.2MB. Free memory was 349.0MB in the beginning and 348.8MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 448.74ms. Allocated memory is still 371.2MB. Free memory was 345.3MB in the beginning and 317.6MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 52.10ms. Allocated memory is still 371.2MB. Free memory was 317.6MB in the beginning and 315.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 27.18ms. Allocated memory is still 371.2MB. Free memory was 315.5MB in the beginning and 314.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 271.22ms. Allocated memory is still 371.2MB. Free memory was 314.2MB in the beginning and 299.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 2667.94ms. Allocated memory was 371.2MB in the beginning and 463.5MB in the end (delta: 92.3MB). Free memory was 298.7MB in the beginning and 337.7MB in the end (delta: -39.0MB). Peak memory consumption was 55.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 736]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [736] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 81 PlacesBefore, 27 PlacesAfterwards, 77 TransitionsBefore, 23 TransitionsAfterwards, 900 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 55 TotalNumberOfCompositions, 3378 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1329, independent: 1090, independent conditional: 0, independent unconditional: 1090, dependent: 239, dependent conditional: 0, dependent unconditional: 239, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 490, independent: 453, independent conditional: 0, independent unconditional: 453, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1329, independent: 637, independent conditional: 0, independent unconditional: 637, dependent: 202, dependent conditional: 0, dependent unconditional: 202, unknown: 490, unknown conditional: 0, unknown unconditional: 490] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 934]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L920] 0 pthread_mutex_t mutex3 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L931] 0 pthread_t id; [L932] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=0, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L923] EXPR 1 myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=0] [L923] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=1, myglobal=myglobal+1=25] [L934] 0 printf("myglobal equals %d\n",myglobal) VAL [arg={0:0}, arg={0:0}, id={5:0}, mutex1={1:0}, mutex2={2:0}, mutex3={3:0}, myglobal=1, myglobal=myglobal+1=25] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [923] and C: printf("myglobal equals %d\n",myglobal) [934] - UnprovableResult [Line: 937]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: 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: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: 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, 103 locations, 8 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: 2.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 10 mSDtfsCounter, 73 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 17:15:50,702 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...