./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_05-lockfuns.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_05-lockfuns.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 26a76453a0148a9083e5ca91fffcb3e5777f05c6718e7fe778e8f06905a5ca02 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:05:48,495 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:05:48,563 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:05:48,570 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:05:48,571 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:05:48,599 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:05:48,600 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:05:48,600 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:05:48,601 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:05:48,603 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:05:48,605 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:05:48,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:05:48,605 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:05:48,606 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:05:48,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:05:48,606 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:05:48,606 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:05:48,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:05:48,607 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:05:48,607 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:05:48,607 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:05:48,609 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:05:48,609 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:05:48,609 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:05:48,610 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:05:48,610 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:05:48,610 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:05:48,610 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:05:48,611 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:05:48,611 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:05:48,611 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:05:48,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:05:48,612 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:05:48,612 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:05:48,613 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:05:48,613 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:05:48,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:05:48,613 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:05:48,613 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:05:48,614 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:05:48,614 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:05:48,614 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26a76453a0148a9083e5ca91fffcb3e5777f05c6718e7fe778e8f06905a5ca02 [2024-10-11 17:05:48,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:05:48,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:05:48,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:05:48,889 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:05:48,890 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:05:48,891 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_05-lockfuns.i [2024-10-11 17:05:50,295 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:05:50,533 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:05:50,533 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_05-lockfuns.i [2024-10-11 17:05:50,555 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/023cccfd9/d20f2116947b4125b5e06dd76bb66f71/FLAG4924dfaa0 [2024-10-11 17:05:50,877 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/023cccfd9/d20f2116947b4125b5e06dd76bb66f71 [2024-10-11 17:05:50,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:05:50,880 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:05:50,882 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:05:50,882 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:05:50,887 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:05:50,888 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:05:50" (1/1) ... [2024-10-11 17:05:50,889 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ad92feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:05:50, skipping insertion in model container [2024-10-11 17:05:50,889 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:05:50" (1/1) ... [2024-10-11 17:05:50,943 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:05:51,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:05:51,427 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:05:51,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:05:51,527 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:05:51,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:05:51 WrapperNode [2024-10-11 17:05:51,528 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:05:51,529 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:05:51,529 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:05:51,530 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:05:51,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:05:51" (1/1) ... [2024-10-11 17:05:51,560 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:05:51" (1/1) ... [2024-10-11 17:05:51,587 INFO L138 Inliner]: procedures = 264, calls = 15, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 59 [2024-10-11 17:05:51,587 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:05:51,588 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:05:51,589 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:05:51,590 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:05:51,597 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:05:51" (1/1) ... [2024-10-11 17:05:51,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:05:51" (1/1) ... [2024-10-11 17:05:51,604 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:05:51" (1/1) ... [2024-10-11 17:05:51,605 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:05:51" (1/1) ... [2024-10-11 17:05:51,612 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:05:51" (1/1) ... [2024-10-11 17:05:51,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:05:51" (1/1) ... [2024-10-11 17:05:51,615 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:05:51" (1/1) ... [2024-10-11 17:05:51,620 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:05:51" (1/1) ... [2024-10-11 17:05:51,622 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:05:51,624 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:05:51,624 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:05:51,625 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:05:51,626 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:05:51" (1/1) ... [2024-10-11 17:05:51,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:05:51,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:05:51,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:05:51,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:05:51,703 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:05:51,703 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:05:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:05:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 17:05:51,704 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 17:05:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 17:05:51,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:05:51,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:05:51,706 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 17:05:51,837 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:05:51,839 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:05:51,970 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:05:51,970 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:05:51,993 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:05:51,994 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 17:05:51,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:05:51 BoogieIcfgContainer [2024-10-11 17:05:51,995 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:05:51,997 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:05:51,997 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:05:52,000 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:05:52,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:05:50" (1/3) ... [2024-10-11 17:05:52,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8c102b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:05:52, skipping insertion in model container [2024-10-11 17:05:52,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:05:51" (2/3) ... [2024-10-11 17:05:52,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f8c102b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:05:52, skipping insertion in model container [2024-10-11 17:05:52,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:05:51" (3/3) ... [2024-10-11 17:05:52,003 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_05-lockfuns.i [2024-10-11 17:05:52,016 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:05:52,016 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-11 17:05:52,016 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:05:52,061 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-11 17:05:52,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 66 transitions, 139 flow [2024-10-11 17:05:52,118 INFO L124 PetriNetUnfolderBase]: 0/65 cut-off events. [2024-10-11 17:05:52,119 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:05:52,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 65 events. 0/65 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-11 17:05:52,122 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 66 transitions, 139 flow [2024-10-11 17:05:52,125 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 60 transitions, 123 flow [2024-10-11 17:05:52,136 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:05:52,144 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@2ec23c64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:05:52,144 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-11 17:05:52,153 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:05:52,153 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2024-10-11 17:05:52,153 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:05:52,154 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:05:52,156 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:05:52,156 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-11 17:05:52,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:05:52,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1019244022, now seen corresponding path program 1 times [2024-10-11 17:05:52,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:05:52,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657596532] [2024-10-11 17:05:52,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:05:52,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:05:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:05:52,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:05:52,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:05:52,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657596532] [2024-10-11 17:05:52,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657596532] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:05:52,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:05:52,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:05:52,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481123352] [2024-10-11 17:05:52,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:05:52,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:05:52,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:05:52,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:05:52,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:05:52,506 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 66 [2024-10-11 17:05:52,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 60 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2024-10-11 17:05:52,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:05:52,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 66 [2024-10-11 17:05:52,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:05:52,620 INFO L124 PetriNetUnfolderBase]: 31/215 cut-off events. [2024-10-11 17:05:52,621 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:05:52,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 215 events. 31/215 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 921 event pairs, 13 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 276. Up to 44 conditions per place. [2024-10-11 17:05:52,628 INFO L140 encePairwiseOnDemand]: 58/66 looper letters, 17 selfloop transitions, 6 changer transitions 0/70 dead transitions. [2024-10-11 17:05:52,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 70 transitions, 189 flow [2024-10-11 17:05:52,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:05:52,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:05:52,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2024-10-11 17:05:52,642 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9141414141414141 [2024-10-11 17:05:52,644 INFO L175 Difference]: Start difference. First operand has 64 places, 60 transitions, 123 flow. Second operand 3 states and 181 transitions. [2024-10-11 17:05:52,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 70 transitions, 189 flow [2024-10-11 17:05:52,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 70 transitions, 188 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:05:52,654 INFO L231 Difference]: Finished difference. Result has 67 places, 66 transitions, 174 flow [2024-10-11 17:05:52,656 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=67, PETRI_TRANSITIONS=66} [2024-10-11 17:05:52,662 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 3 predicate places. [2024-10-11 17:05:52,663 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 66 transitions, 174 flow [2024-10-11 17:05:52,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2024-10-11 17:05:52,663 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:05:52,664 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:05:52,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:05:52,664 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-11 17:05:52,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:05:52,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1416932937, now seen corresponding path program 1 times [2024-10-11 17:05:52,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:05:52,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690679000] [2024-10-11 17:05:52,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:05:52,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:05:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:05:52,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:05:52,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:05:52,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690679000] [2024-10-11 17:05:52,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690679000] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:05:52,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:05:52,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:05:52,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946778993] [2024-10-11 17:05:52,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:05:52,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:05:52,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:05:52,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:05:52,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:05:52,770 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 66 [2024-10-11 17:05:52,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 66 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2024-10-11 17:05:52,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:05:52,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 66 [2024-10-11 17:05:52,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:05:52,844 INFO L124 PetriNetUnfolderBase]: 46/271 cut-off events. [2024-10-11 17:05:52,846 INFO L125 PetriNetUnfolderBase]: For 89/94 co-relation queries the response was YES. [2024-10-11 17:05:52,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 476 conditions, 271 events. 46/271 cut-off events. For 89/94 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1331 event pairs, 21 based on Foata normal form. 3/257 useless extension candidates. Maximal degree in co-relation 452. Up to 86 conditions per place. [2024-10-11 17:05:52,850 INFO L140 encePairwiseOnDemand]: 60/66 looper letters, 16 selfloop transitions, 7 changer transitions 1/73 dead transitions. [2024-10-11 17:05:52,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 73 transitions, 246 flow [2024-10-11 17:05:52,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:05:52,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:05:52,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2024-10-11 17:05:52,853 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2024-10-11 17:05:52,853 INFO L175 Difference]: Start difference. First operand has 67 places, 66 transitions, 174 flow. Second operand 3 states and 176 transitions. [2024-10-11 17:05:52,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 73 transitions, 246 flow [2024-10-11 17:05:52,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 73 transitions, 230 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:05:52,859 INFO L231 Difference]: Finished difference. Result has 69 places, 71 transitions, 218 flow [2024-10-11 17:05:52,859 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=69, PETRI_TRANSITIONS=71} [2024-10-11 17:05:52,860 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 5 predicate places. [2024-10-11 17:05:52,860 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 71 transitions, 218 flow [2024-10-11 17:05:52,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2024-10-11 17:05:52,861 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:05:52,861 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:05:52,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:05:52,862 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-11 17:05:52,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:05:52,863 INFO L85 PathProgramCache]: Analyzing trace with hash -386380420, now seen corresponding path program 1 times [2024-10-11 17:05:52,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:05:52,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168901424] [2024-10-11 17:05:52,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:05:52,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:05:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:05:52,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:05:52,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:05:52,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168901424] [2024-10-11 17:05:52,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168901424] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:05:52,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:05:52,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:05:52,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291772425] [2024-10-11 17:05:52,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:05:52,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:05:52,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:05:52,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:05:52,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:05:52,981 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 66 [2024-10-11 17:05:52,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 71 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2024-10-11 17:05:52,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:05:52,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 66 [2024-10-11 17:05:52,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:05:53,051 INFO L124 PetriNetUnfolderBase]: 59/328 cut-off events. [2024-10-11 17:05:53,051 INFO L125 PetriNetUnfolderBase]: For 186/192 co-relation queries the response was YES. [2024-10-11 17:05:53,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 646 conditions, 328 events. 59/328 cut-off events. For 186/192 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1710 event pairs, 21 based on Foata normal form. 3/316 useless extension candidates. Maximal degree in co-relation 620. Up to 100 conditions per place. [2024-10-11 17:05:53,056 INFO L140 encePairwiseOnDemand]: 60/66 looper letters, 16 selfloop transitions, 7 changer transitions 7/78 dead transitions. [2024-10-11 17:05:53,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 78 transitions, 302 flow [2024-10-11 17:05:53,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:05:53,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:05:53,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 171 transitions. [2024-10-11 17:05:53,061 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8636363636363636 [2024-10-11 17:05:53,061 INFO L175 Difference]: Start difference. First operand has 69 places, 71 transitions, 218 flow. Second operand 3 states and 171 transitions. [2024-10-11 17:05:53,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 78 transitions, 302 flow [2024-10-11 17:05:53,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 78 transitions, 284 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:05:53,068 INFO L231 Difference]: Finished difference. Result has 71 places, 70 transitions, 236 flow [2024-10-11 17:05:53,068 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=236, PETRI_PLACES=71, PETRI_TRANSITIONS=70} [2024-10-11 17:05:53,069 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 7 predicate places. [2024-10-11 17:05:53,069 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 70 transitions, 236 flow [2024-10-11 17:05:53,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2024-10-11 17:05:53,069 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:05:53,070 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:05:53,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:05:53,070 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-11 17:05:53,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:05:53,071 INFO L85 PathProgramCache]: Analyzing trace with hash -63898001, now seen corresponding path program 1 times [2024-10-11 17:05:53,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:05:53,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341837459] [2024-10-11 17:05:53,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:05:53,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:05:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:05:53,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:05:53,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:05:53,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341837459] [2024-10-11 17:05:53,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341837459] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:05:53,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:05:53,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:05:53,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166750508] [2024-10-11 17:05:53,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:05:53,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:05:53,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:05:53,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:05:53,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:05:53,218 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 66 [2024-10-11 17:05:53,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 70 transitions, 236 flow. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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) [2024-10-11 17:05:53,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:05:53,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 66 [2024-10-11 17:05:53,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:05:53,239 INFO L124 PetriNetUnfolderBase]: 1/88 cut-off events. [2024-10-11 17:05:53,239 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-10-11 17:05:53,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 88 events. 1/88 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 1 based on Foata normal form. 2/90 useless extension candidates. Maximal degree in co-relation 115. Up to 8 conditions per place. [2024-10-11 17:05:53,241 INFO L140 encePairwiseOnDemand]: 62/66 looper letters, 0 selfloop transitions, 0 changer transitions 56/56 dead transitions. [2024-10-11 17:05:53,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 56 transitions, 162 flow [2024-10-11 17:05:53,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:05:53,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:05:53,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2024-10-11 17:05:53,245 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9343434343434344 [2024-10-11 17:05:53,245 INFO L175 Difference]: Start difference. First operand has 71 places, 70 transitions, 236 flow. Second operand 3 states and 185 transitions. [2024-10-11 17:05:53,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 56 transitions, 162 flow [2024-10-11 17:05:53,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 56 transitions, 126 flow, removed 8 selfloop flow, removed 8 redundant places. [2024-10-11 17:05:53,247 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2024-10-11 17:05:53,250 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=61, PETRI_TRANSITIONS=0} [2024-10-11 17:05:53,251 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, -3 predicate places. [2024-10-11 17:05:53,252 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2024-10-11 17:05:53,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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) [2024-10-11 17:05:53,254 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-10-11 17:05:53,256 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-10-11 17:05:53,256 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-10-11 17:05:53,256 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-10-11 17:05:53,256 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-10-11 17:05:53,257 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-10-11 17:05:53,257 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-10-11 17:05:53,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:05:53,259 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-11 17:05:53,266 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 17:05:53,267 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 17:05:53,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 05:05:53 BasicIcfg [2024-10-11 17:05:53,273 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 17:05:53,273 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 17:05:53,274 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 17:05:53,274 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 17:05:53,277 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:05:51" (3/4) ... [2024-10-11 17:05:53,279 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 17:05:53,285 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-11 17:05:53,289 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-11 17:05:53,292 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 17:05:53,292 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 17:05:53,373 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 17:05:53,373 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 17:05:53,373 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 17:05:53,374 INFO L158 Benchmark]: Toolchain (without parser) took 2494.28ms. Allocated memory is still 172.0MB. Free memory was 101.5MB in the beginning and 99.0MB in the end (delta: 2.5MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2024-10-11 17:05:53,376 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 104.9MB. Free memory is still 65.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:05:53,376 INFO L158 Benchmark]: CACSL2BoogieTranslator took 646.50ms. Allocated memory is still 172.0MB. Free memory was 101.3MB in the beginning and 127.3MB in the end (delta: -26.0MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2024-10-11 17:05:53,376 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.42ms. Allocated memory is still 172.0MB. Free memory was 127.3MB in the beginning and 124.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:05:53,377 INFO L158 Benchmark]: Boogie Preprocessor took 35.60ms. Allocated memory is still 172.0MB. Free memory was 124.8MB in the beginning and 123.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:05:53,377 INFO L158 Benchmark]: RCFGBuilder took 370.59ms. Allocated memory is still 172.0MB. Free memory was 123.3MB in the beginning and 109.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-11 17:05:53,378 INFO L158 Benchmark]: TraceAbstraction took 1276.17ms. Allocated memory is still 172.0MB. Free memory was 108.7MB in the beginning and 103.2MB in the end (delta: 5.5MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2024-10-11 17:05:53,378 INFO L158 Benchmark]: Witness Printer took 100.23ms. Allocated memory is still 172.0MB. Free memory was 103.2MB in the beginning and 99.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 17:05:53,380 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 104.9MB. Free memory is still 65.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 646.50ms. Allocated memory is still 172.0MB. Free memory was 101.3MB in the beginning and 127.3MB in the end (delta: -26.0MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.42ms. Allocated memory is still 172.0MB. Free memory was 127.3MB in the beginning and 124.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.60ms. Allocated memory is still 172.0MB. Free memory was 124.8MB in the beginning and 123.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 370.59ms. Allocated memory is still 172.0MB. Free memory was 123.3MB in the beginning and 109.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1276.17ms. Allocated memory is still 172.0MB. Free memory was 108.7MB in the beginning and 103.2MB in the end (delta: 5.5MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Witness Printer took 100.23ms. Allocated memory is still 172.0MB. Free memory was 103.2MB in the beginning and 99.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 935]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 935]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 927]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 927]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 91 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 123 IncrementalHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 6 mSDtfsCounter, 123 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=3, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 139 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 17:05:53,407 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE