./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 07:01:10,229 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:01:10,300 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 07:01:10,307 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:01:10,308 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:01:10,334 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:01:10,335 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:01:10,335 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:01:10,336 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:01:10,337 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:01:10,338 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 07:01:10,339 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 07:01:10,339 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 07:01:10,340 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:01:10,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:01:10,342 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:01:10,342 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:01:10,343 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:01:10,343 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:01:10,343 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:01:10,343 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:01:10,344 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:01:10,344 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 07:01:10,344 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:01:10,348 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:01:10,348 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:01:10,349 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:01:10,349 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:01:10,349 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:01:10,350 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:01:10,350 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:01:10,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 07:01:10,350 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:01:10,351 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:01:10,351 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:01:10,351 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 07:01:10,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:01:10,352 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:01:10,352 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 07:01:10,352 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 07:01:10,352 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:01:10,353 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 [2024-11-09 07:01:10,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:01:10,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:01:10,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:01:10,644 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:01:10,644 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:01:10,645 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2024-11-09 07:01:12,134 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:01:12,339 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:01:12,339 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2024-11-09 07:01:12,347 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f044f447/75988808200d42a8ae95cc2d8b86249e/FLAGed128787a [2024-11-09 07:01:12,717 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f044f447/75988808200d42a8ae95cc2d8b86249e [2024-11-09 07:01:12,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:01:12,721 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:01:12,723 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:01:12,724 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:01:12,729 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:01:12,730 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:01:12" (1/1) ... [2024-11-09 07:01:12,731 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a0a6c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:12, skipping insertion in model container [2024-11-09 07:01:12,731 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:01:12" (1/1) ... [2024-11-09 07:01:12,766 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:01:12,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:01:12,979 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:01:12,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:01:13,014 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:01:13,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:13 WrapperNode [2024-11-09 07:01:13,015 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:01:13,016 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:01:13,016 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:01:13,016 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:01:13,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:13" (1/1) ... [2024-11-09 07:01:13,029 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:13" (1/1) ... [2024-11-09 07:01:13,053 INFO L138 Inliner]: procedures = 19, calls = 15, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 172 [2024-11-09 07:01:13,054 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:01:13,055 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:01:13,055 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:01:13,055 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:01:13,065 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:13" (1/1) ... [2024-11-09 07:01:13,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:13" (1/1) ... [2024-11-09 07:01:13,068 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:13" (1/1) ... [2024-11-09 07:01:13,068 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:13" (1/1) ... [2024-11-09 07:01:13,074 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:13" (1/1) ... [2024-11-09 07:01:13,076 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:13" (1/1) ... [2024-11-09 07:01:13,078 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:13" (1/1) ... [2024-11-09 07:01:13,079 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:13" (1/1) ... [2024-11-09 07:01:13,082 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:01:13,083 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:01:13,083 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:01:13,083 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:01:13,084 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:13" (1/1) ... [2024-11-09 07:01:13,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 07:01:13,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:01:13,133 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 07:01:13,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 07:01:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:01:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 07:01:13,176 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 07:01:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 07:01:13,176 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 07:01:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-09 07:01:13,176 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-09 07:01:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:01:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:01:13,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:01:13,178 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 07:01:13,264 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:01:13,266 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:01:13,577 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 07:01:13,577 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:01:13,607 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:01:13,607 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:01:13,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:01:13 BoogieIcfgContainer [2024-11-09 07:01:13,608 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:01:13,610 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:01:13,610 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:01:13,613 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:01:13,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:01:12" (1/3) ... [2024-11-09 07:01:13,614 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a8cf7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:01:13, skipping insertion in model container [2024-11-09 07:01:13,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:01:13" (2/3) ... [2024-11-09 07:01:13,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a8cf7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:01:13, skipping insertion in model container [2024-11-09 07:01:13,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:01:13" (3/3) ... [2024-11-09 07:01:13,616 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2024-11-09 07:01:13,634 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:01:13,634 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-11-09 07:01:13,634 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 07:01:13,742 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-09 07:01:13,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 189 transitions, 399 flow [2024-11-09 07:01:13,874 INFO L124 PetriNetUnfolderBase]: 7/186 cut-off events. [2024-11-09 07:01:13,874 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 07:01:13,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 186 events. 7/186 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 210 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 141. Up to 2 conditions per place. [2024-11-09 07:01:13,888 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 189 transitions, 399 flow [2024-11-09 07:01:13,894 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 173 places, 169 transitions, 353 flow [2024-11-09 07:01:13,903 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:01:13,911 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;@4bb0d1c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:01:13,911 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-09 07:01:13,922 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:01:13,922 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-11-09 07:01:13,922 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:01:13,925 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:01:13,926 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] [2024-11-09 07:01:13,926 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-09 07:01:13,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:13,932 INFO L85 PathProgramCache]: Analyzing trace with hash -2121399970, now seen corresponding path program 1 times [2024-11-09 07:01:13,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:01:13,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038158990] [2024-11-09 07:01:13,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:13,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:14,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:01:14,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:01:14,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038158990] [2024-11-09 07:01:14,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038158990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:14,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:14,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:01:14,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969268398] [2024-11-09 07:01:14,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:14,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:01:14,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:01:14,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:01:14,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:01:14,203 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 189 [2024-11-09 07:01:14,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 169 transitions, 353 flow. Second operand has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 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) [2024-11-09 07:01:14,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:01:14,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 189 [2024-11-09 07:01:14,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:01:14,445 INFO L124 PetriNetUnfolderBase]: 112/854 cut-off events. [2024-11-09 07:01:14,445 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-11-09 07:01:14,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1087 conditions, 854 events. 112/854 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5171 event pairs, 92 based on Foata normal form. 43/769 useless extension candidates. Maximal degree in co-relation 937. Up to 173 conditions per place. [2024-11-09 07:01:14,463 INFO L140 encePairwiseOnDemand]: 182/189 looper letters, 16 selfloop transitions, 2 changer transitions 1/164 dead transitions. [2024-11-09 07:01:14,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 164 transitions, 379 flow [2024-11-09 07:01:14,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:01:14,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:01:14,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 509 transitions. [2024-11-09 07:01:14,481 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8977072310405644 [2024-11-09 07:01:14,484 INFO L175 Difference]: Start difference. First operand has 173 places, 169 transitions, 353 flow. Second operand 3 states and 509 transitions. [2024-11-09 07:01:14,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 164 transitions, 379 flow [2024-11-09 07:01:14,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 164 transitions, 370 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 07:01:14,495 INFO L231 Difference]: Finished difference. Result has 169 places, 163 transitions, 336 flow [2024-11-09 07:01:14,497 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=169, PETRI_TRANSITIONS=163} [2024-11-09 07:01:14,501 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, -4 predicate places. [2024-11-09 07:01:14,503 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 163 transitions, 336 flow [2024-11-09 07:01:14,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 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) [2024-11-09 07:01:14,504 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:01:14,504 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] [2024-11-09 07:01:14,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:01:14,505 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-09 07:01:14,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:14,507 INFO L85 PathProgramCache]: Analyzing trace with hash 2010632472, now seen corresponding path program 1 times [2024-11-09 07:01:14,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:01:14,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430769913] [2024-11-09 07:01:14,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:14,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:14,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:01:14,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:01:14,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430769913] [2024-11-09 07:01:14,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430769913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:14,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:14,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:01:14,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472083126] [2024-11-09 07:01:14,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:14,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:01:14,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:01:14,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:01:14,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:01:14,626 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 189 [2024-11-09 07:01:14,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 163 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 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) [2024-11-09 07:01:14,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:01:14,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 189 [2024-11-09 07:01:14,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:01:14,767 INFO L124 PetriNetUnfolderBase]: 114/758 cut-off events. [2024-11-09 07:01:14,767 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-09 07:01:14,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 983 conditions, 758 events. 114/758 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4364 event pairs, 100 based on Foata normal form. 0/647 useless extension candidates. Maximal degree in co-relation 951. Up to 185 conditions per place. [2024-11-09 07:01:14,777 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 16 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2024-11-09 07:01:14,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 162 transitions, 370 flow [2024-11-09 07:01:14,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:01:14,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:01:14,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 505 transitions. [2024-11-09 07:01:14,781 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.890652557319224 [2024-11-09 07:01:14,781 INFO L175 Difference]: Start difference. First operand has 169 places, 163 transitions, 336 flow. Second operand 3 states and 505 transitions. [2024-11-09 07:01:14,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 162 transitions, 370 flow [2024-11-09 07:01:14,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 162 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:01:14,789 INFO L231 Difference]: Finished difference. Result has 167 places, 162 transitions, 334 flow [2024-11-09 07:01:14,789 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=167, PETRI_TRANSITIONS=162} [2024-11-09 07:01:14,790 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, -6 predicate places. [2024-11-09 07:01:14,790 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 162 transitions, 334 flow [2024-11-09 07:01:14,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 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) [2024-11-09 07:01:14,791 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:01:14,791 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, 1, 1, 1, 1] [2024-11-09 07:01:14,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:01:14,792 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-09 07:01:14,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:14,794 INFO L85 PathProgramCache]: Analyzing trace with hash 111881899, now seen corresponding path program 1 times [2024-11-09 07:01:14,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:01:14,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356041184] [2024-11-09 07:01:14,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:14,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:14,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:01:14,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:01:14,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356041184] [2024-11-09 07:01:14,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356041184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:14,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:14,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:01:14,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100714993] [2024-11-09 07:01:14,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:14,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:01:14,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:01:14,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:01:14,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:01:14,874 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 189 [2024-11-09 07:01:14,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 162 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 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) [2024-11-09 07:01:14,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:01:14,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 189 [2024-11-09 07:01:14,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:01:15,023 INFO L124 PetriNetUnfolderBase]: 114/953 cut-off events. [2024-11-09 07:01:15,024 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-09 07:01:15,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1154 conditions, 953 events. 114/953 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 5910 event pairs, 92 based on Foata normal form. 0/816 useless extension candidates. Maximal degree in co-relation 1114. Up to 173 conditions per place. [2024-11-09 07:01:15,035 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 16 selfloop transitions, 2 changer transitions 0/161 dead transitions. [2024-11-09 07:01:15,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 161 transitions, 368 flow [2024-11-09 07:01:15,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:01:15,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:01:15,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 505 transitions. [2024-11-09 07:01:15,038 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.890652557319224 [2024-11-09 07:01:15,038 INFO L175 Difference]: Start difference. First operand has 167 places, 162 transitions, 334 flow. Second operand 3 states and 505 transitions. [2024-11-09 07:01:15,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 161 transitions, 368 flow [2024-11-09 07:01:15,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 161 transitions, 364 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:01:15,044 INFO L231 Difference]: Finished difference. Result has 166 places, 161 transitions, 332 flow [2024-11-09 07:01:15,044 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=166, PETRI_TRANSITIONS=161} [2024-11-09 07:01:15,045 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, -7 predicate places. [2024-11-09 07:01:15,046 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 161 transitions, 332 flow [2024-11-09 07:01:15,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 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) [2024-11-09 07:01:15,048 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:01:15,048 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, 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, 1, 1] [2024-11-09 07:01:15,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:01:15,049 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-09 07:01:15,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:15,049 INFO L85 PathProgramCache]: Analyzing trace with hash 981527663, now seen corresponding path program 1 times [2024-11-09 07:01:15,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:01:15,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328074777] [2024-11-09 07:01:15,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:15,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:15,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:01:15,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:01:15,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328074777] [2024-11-09 07:01:15,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328074777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:15,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:15,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:01:15,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693578240] [2024-11-09 07:01:15,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:15,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:01:15,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:01:15,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:01:15,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:01:15,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 189 [2024-11-09 07:01:15,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 161 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 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) [2024-11-09 07:01:15,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:01:15,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 189 [2024-11-09 07:01:15,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:01:15,335 INFO L124 PetriNetUnfolderBase]: 174/1118 cut-off events. [2024-11-09 07:01:15,335 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-09 07:01:15,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1443 conditions, 1118 events. 174/1118 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 7779 event pairs, 96 based on Foata normal form. 0/961 useless extension candidates. Maximal degree in co-relation 1395. Up to 202 conditions per place. [2024-11-09 07:01:15,344 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 21 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2024-11-09 07:01:15,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 166 transitions, 391 flow [2024-11-09 07:01:15,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:01:15,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:01:15,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 516 transitions. [2024-11-09 07:01:15,347 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.91005291005291 [2024-11-09 07:01:15,347 INFO L175 Difference]: Start difference. First operand has 166 places, 161 transitions, 332 flow. Second operand 3 states and 516 transitions. [2024-11-09 07:01:15,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 166 transitions, 391 flow [2024-11-09 07:01:15,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 166 transitions, 387 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:01:15,353 INFO L231 Difference]: Finished difference. Result has 165 places, 160 transitions, 330 flow [2024-11-09 07:01:15,355 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=165, PETRI_TRANSITIONS=160} [2024-11-09 07:01:15,356 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, -8 predicate places. [2024-11-09 07:01:15,356 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 160 transitions, 330 flow [2024-11-09 07:01:15,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 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) [2024-11-09 07:01:15,358 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:01:15,358 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, 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, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:15,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:01:15,359 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-09 07:01:15,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:15,360 INFO L85 PathProgramCache]: Analyzing trace with hash -14978574, now seen corresponding path program 1 times [2024-11-09 07:01:15,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:01:15,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52151953] [2024-11-09 07:01:15,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:15,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:15,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:01:15,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:01:15,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52151953] [2024-11-09 07:01:15,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52151953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:15,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:15,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:01:15,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649170361] [2024-11-09 07:01:15,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:15,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:01:15,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:01:15,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:01:15,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:01:15,484 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 189 [2024-11-09 07:01:15,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 160 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 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) [2024-11-09 07:01:15,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:01:15,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 189 [2024-11-09 07:01:15,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:01:15,598 INFO L124 PetriNetUnfolderBase]: 121/726 cut-off events. [2024-11-09 07:01:15,599 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-09 07:01:15,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 993 conditions, 726 events. 121/726 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4306 event pairs, 42 based on Foata normal form. 0/644 useless extension candidates. Maximal degree in co-relation 656. Up to 119 conditions per place. [2024-11-09 07:01:15,606 INFO L140 encePairwiseOnDemand]: 187/189 looper letters, 20 selfloop transitions, 1 changer transitions 0/165 dead transitions. [2024-11-09 07:01:15,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 165 transitions, 385 flow [2024-11-09 07:01:15,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:01:15,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:01:15,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 520 transitions. [2024-11-09 07:01:15,609 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9171075837742504 [2024-11-09 07:01:15,609 INFO L175 Difference]: Start difference. First operand has 165 places, 160 transitions, 330 flow. Second operand 3 states and 520 transitions. [2024-11-09 07:01:15,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 165 transitions, 385 flow [2024-11-09 07:01:15,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 165 transitions, 381 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:01:15,613 INFO L231 Difference]: Finished difference. Result has 164 places, 159 transitions, 326 flow [2024-11-09 07:01:15,613 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=164, PETRI_TRANSITIONS=159} [2024-11-09 07:01:15,615 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, -9 predicate places. [2024-11-09 07:01:15,616 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 159 transitions, 326 flow [2024-11-09 07:01:15,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 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) [2024-11-09 07:01:15,617 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:01:15,617 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:15,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:01:15,617 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-09 07:01:15,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:15,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1757999451, now seen corresponding path program 1 times [2024-11-09 07:01:15,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:01:15,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949269004] [2024-11-09 07:01:15,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:15,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:15,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:01:15,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:01:15,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949269004] [2024-11-09 07:01:15,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949269004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:15,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:15,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:01:15,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111685972] [2024-11-09 07:01:15,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:15,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:01:15,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:01:15,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:01:15,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:01:15,712 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 189 [2024-11-09 07:01:15,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 159 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 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) [2024-11-09 07:01:15,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:01:15,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 189 [2024-11-09 07:01:15,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:01:15,839 INFO L124 PetriNetUnfolderBase]: 182/790 cut-off events. [2024-11-09 07:01:15,840 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-09 07:01:15,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1145 conditions, 790 events. 182/790 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4630 event pairs, 122 based on Foata normal form. 0/695 useless extension candidates. Maximal degree in co-relation 745. Up to 220 conditions per place. [2024-11-09 07:01:15,845 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 21 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2024-11-09 07:01:15,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 164 transitions, 385 flow [2024-11-09 07:01:15,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:01:15,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:01:15,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 516 transitions. [2024-11-09 07:01:15,847 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.91005291005291 [2024-11-09 07:01:15,848 INFO L175 Difference]: Start difference. First operand has 164 places, 159 transitions, 326 flow. Second operand 3 states and 516 transitions. [2024-11-09 07:01:15,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 164 transitions, 385 flow [2024-11-09 07:01:15,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 164 transitions, 384 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:01:15,852 INFO L231 Difference]: Finished difference. Result has 164 places, 158 transitions, 327 flow [2024-11-09 07:01:15,852 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=327, PETRI_PLACES=164, PETRI_TRANSITIONS=158} [2024-11-09 07:01:15,853 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, -9 predicate places. [2024-11-09 07:01:15,854 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 158 transitions, 327 flow [2024-11-09 07:01:15,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 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) [2024-11-09 07:01:15,854 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:01:15,855 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:15,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 07:01:15,855 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-09 07:01:15,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:15,856 INFO L85 PathProgramCache]: Analyzing trace with hash 248207198, now seen corresponding path program 1 times [2024-11-09 07:01:15,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:01:15,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010977706] [2024-11-09 07:01:15,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:15,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:15,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:01:15,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:01:15,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010977706] [2024-11-09 07:01:15,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010977706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:15,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:15,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:01:15,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913670660] [2024-11-09 07:01:15,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:15,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:01:15,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:01:15,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:01:15,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:01:15,957 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 189 [2024-11-09 07:01:15,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 158 transitions, 327 flow. Second operand has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 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) [2024-11-09 07:01:15,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:01:15,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 189 [2024-11-09 07:01:15,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:01:16,048 INFO L124 PetriNetUnfolderBase]: 138/723 cut-off events. [2024-11-09 07:01:16,049 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-09 07:01:16,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1020 conditions, 723 events. 138/723 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4039 event pairs, 54 based on Foata normal form. 0/653 useless extension candidates. Maximal degree in co-relation 665. Up to 116 conditions per place. [2024-11-09 07:01:16,054 INFO L140 encePairwiseOnDemand]: 187/189 looper letters, 20 selfloop transitions, 1 changer transitions 0/163 dead transitions. [2024-11-09 07:01:16,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 163 transitions, 382 flow [2024-11-09 07:01:16,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:01:16,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:01:16,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 520 transitions. [2024-11-09 07:01:16,057 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9171075837742504 [2024-11-09 07:01:16,057 INFO L175 Difference]: Start difference. First operand has 164 places, 158 transitions, 327 flow. Second operand 3 states and 520 transitions. [2024-11-09 07:01:16,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 163 transitions, 382 flow [2024-11-09 07:01:16,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 163 transitions, 378 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:01:16,061 INFO L231 Difference]: Finished difference. Result has 163 places, 157 transitions, 323 flow [2024-11-09 07:01:16,061 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=323, PETRI_PLACES=163, PETRI_TRANSITIONS=157} [2024-11-09 07:01:16,063 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, -10 predicate places. [2024-11-09 07:01:16,064 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 157 transitions, 323 flow [2024-11-09 07:01:16,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 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) [2024-11-09 07:01:16,064 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:01:16,065 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:16,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 07:01:16,065 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-09 07:01:16,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:16,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1132937307, now seen corresponding path program 1 times [2024-11-09 07:01:16,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:01:16,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525704561] [2024-11-09 07:01:16,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:16,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:16,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:01:16,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:01:16,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525704561] [2024-11-09 07:01:16,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525704561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:16,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:16,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:01:16,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094282120] [2024-11-09 07:01:16,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:16,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:01:16,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:01:16,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:01:16,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:01:16,164 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 189 [2024-11-09 07:01:16,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 157 transitions, 323 flow. Second operand has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 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) [2024-11-09 07:01:16,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:01:16,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 189 [2024-11-09 07:01:16,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:01:16,289 INFO L124 PetriNetUnfolderBase]: 172/966 cut-off events. [2024-11-09 07:01:16,290 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-09 07:01:16,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1274 conditions, 966 events. 172/966 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 5866 event pairs, 110 based on Foata normal form. 0/856 useless extension candidates. Maximal degree in co-relation 1011. Up to 202 conditions per place. [2024-11-09 07:01:16,296 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 21 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2024-11-09 07:01:16,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 162 transitions, 381 flow [2024-11-09 07:01:16,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:01:16,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:01:16,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 516 transitions. [2024-11-09 07:01:16,298 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.91005291005291 [2024-11-09 07:01:16,298 INFO L175 Difference]: Start difference. First operand has 163 places, 157 transitions, 323 flow. Second operand 3 states and 516 transitions. [2024-11-09 07:01:16,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 162 transitions, 381 flow [2024-11-09 07:01:16,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 162 transitions, 380 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:01:16,302 INFO L231 Difference]: Finished difference. Result has 163 places, 156 transitions, 324 flow [2024-11-09 07:01:16,302 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=163, PETRI_TRANSITIONS=156} [2024-11-09 07:01:16,303 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, -10 predicate places. [2024-11-09 07:01:16,303 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 156 transitions, 324 flow [2024-11-09 07:01:16,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 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) [2024-11-09 07:01:16,304 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:01:16,304 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:16,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 07:01:16,304 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-09 07:01:16,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:16,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1277766370, now seen corresponding path program 1 times [2024-11-09 07:01:16,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:01:16,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559770111] [2024-11-09 07:01:16,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:16,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:01:16,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:16,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:01:16,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:01:16,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559770111] [2024-11-09 07:01:16,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559770111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:16,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:01:16,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:01:16,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403368441] [2024-11-09 07:01:16,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:16,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:01:16,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:01:16,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:01:16,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:01:16,363 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 189 [2024-11-09 07:01:16,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 156 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 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) [2024-11-09 07:01:16,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:01:16,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 189 [2024-11-09 07:01:16,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:01:16,462 INFO L124 PetriNetUnfolderBase]: 136/869 cut-off events. [2024-11-09 07:01:16,462 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-11-09 07:01:16,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1129 conditions, 869 events. 136/869 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5024 event pairs, 56 based on Foata normal form. 0/782 useless extension candidates. Maximal degree in co-relation 866. Up to 109 conditions per place. [2024-11-09 07:01:16,468 INFO L140 encePairwiseOnDemand]: 187/189 looper letters, 0 selfloop transitions, 0 changer transitions 161/161 dead transitions. [2024-11-09 07:01:16,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 161 transitions, 378 flow [2024-11-09 07:01:16,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:01:16,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:01:16,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 520 transitions. [2024-11-09 07:01:16,469 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9171075837742504 [2024-11-09 07:01:16,470 INFO L175 Difference]: Start difference. First operand has 163 places, 156 transitions, 324 flow. Second operand 3 states and 520 transitions. [2024-11-09 07:01:16,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 161 transitions, 378 flow [2024-11-09 07:01:16,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 161 transitions, 374 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:01:16,472 INFO L231 Difference]: Finished difference. Result has 162 places, 0 transitions, 0 flow [2024-11-09 07:01:16,472 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=162, PETRI_TRANSITIONS=0} [2024-11-09 07:01:16,475 INFO L277 CegarLoopForPetriNet]: 173 programPoint places, -11 predicate places. [2024-11-09 07:01:16,475 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 0 transitions, 0 flow [2024-11-09 07:01:16,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 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) [2024-11-09 07:01:16,478 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 18 remaining) [2024-11-09 07:01:16,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-09 07:01:16,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-09 07:01:16,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-09 07:01:16,479 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-09 07:01:16,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-09 07:01:16,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-09 07:01:16,480 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-09 07:01:16,483 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-09 07:01:16,483 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2024-11-09 07:01:16,483 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2024-11-09 07:01:16,483 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 18 remaining) [2024-11-09 07:01:16,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-09 07:01:16,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-09 07:01:16,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-09 07:01:16,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-09 07:01:16,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-09 07:01:16,484 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-09 07:01:16,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 07:01:16,485 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:16,492 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 07:01:16,492 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:01:16,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:01:16 BasicIcfg [2024-11-09 07:01:16,499 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:01:16,499 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:01:16,499 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:01:16,500 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:01:16,500 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:01:13" (3/4) ... [2024-11-09 07:01:16,502 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 07:01:16,505 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-09 07:01:16,505 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-09 07:01:16,505 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-09 07:01:16,509 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-09 07:01:16,510 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 07:01:16,510 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 07:01:16,511 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 07:01:16,611 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 07:01:16,612 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 07:01:16,613 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:01:16,614 INFO L158 Benchmark]: Toolchain (without parser) took 3893.27ms. Allocated memory was 155.2MB in the beginning and 190.8MB in the end (delta: 35.7MB). Free memory was 87.0MB in the beginning and 90.0MB in the end (delta: -3.0MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2024-11-09 07:01:16,614 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:01:16,615 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.76ms. Allocated memory is still 155.2MB. Free memory was 86.8MB in the beginning and 73.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 07:01:16,615 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.56ms. Allocated memory is still 155.2MB. Free memory was 73.6MB in the beginning and 71.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:01:16,615 INFO L158 Benchmark]: Boogie Preprocessor took 26.94ms. Allocated memory is still 155.2MB. Free memory was 71.6MB in the beginning and 70.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:01:16,615 INFO L158 Benchmark]: RCFGBuilder took 525.31ms. Allocated memory is still 155.2MB. Free memory was 70.0MB in the beginning and 120.3MB in the end (delta: -50.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 07:01:16,616 INFO L158 Benchmark]: TraceAbstraction took 2888.95ms. Allocated memory was 155.2MB in the beginning and 190.8MB in the end (delta: 35.7MB). Free memory was 119.5MB in the beginning and 95.2MB in the end (delta: 24.3MB). Peak memory consumption was 62.5MB. Max. memory is 16.1GB. [2024-11-09 07:01:16,616 INFO L158 Benchmark]: Witness Printer took 114.29ms. Allocated memory is still 190.8MB. Free memory was 95.2MB in the beginning and 90.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 07:01:16,617 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.76ms. Allocated memory is still 155.2MB. Free memory was 86.8MB in the beginning and 73.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.56ms. Allocated memory is still 155.2MB. Free memory was 73.6MB in the beginning and 71.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.94ms. Allocated memory is still 155.2MB. Free memory was 71.6MB in the beginning and 70.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 525.31ms. Allocated memory is still 155.2MB. Free memory was 70.0MB in the beginning and 120.3MB in the end (delta: -50.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2888.95ms. Allocated memory was 155.2MB in the beginning and 190.8MB in the end (delta: 35.7MB). Free memory was 119.5MB in the beginning and 95.2MB in the end (delta: 24.3MB). Peak memory consumption was 62.5MB. Max. memory is 16.1GB. * Witness Printer took 114.29ms. Allocated memory is still 190.8MB. Free memory was 95.2MB in the beginning and 90.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: 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 7 procedures, 264 locations, 18 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: 2.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 201 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 82 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 371 IncrementalHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 44 mSDtfsCounter, 371 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=353occurred in iteration=0, InterpolantAutomatonStates: 27, 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, 0.5s InterpolantComputationTime, 588 NumberOfCodeBlocks, 588 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 579 ConstructedInterpolants, 0 QuantifiedInterpolants, 597 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 07:01:16,651 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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