./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/31_simple_loop5_vs.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8be7027f 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/pthread-ext/31_simple_loop5_vs.i -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 d5289904c0d34e84fc731c9bca51c5d8bc54117a73409b0419290d8896b60d2d --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 12:11:36,001 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 12:11:36,084 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-12 12:11:36,090 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 12:11:36,092 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 12:11:36,119 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 12:11:36,121 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 12:11:36,121 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 12:11:36,122 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 12:11:36,124 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 12:11:36,124 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 12:11:36,125 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 12:11:36,125 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 12:11:36,128 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 12:11:36,128 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 12:11:36,129 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 12:11:36,129 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 12:11:36,129 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 12:11:36,130 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 12:11:36,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 12:11:36,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 12:11:36,131 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 12:11:36,131 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-12 12:11:36,132 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 12:11:36,133 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 12:11:36,133 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 12:11:36,133 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 12:11:36,134 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 12:11:36,134 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 12:11:36,134 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 12:11:36,135 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 12:11:36,135 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:11:36,135 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 12:11:36,136 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 12:11:36,136 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 12:11:36,137 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 12:11:36,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 12:11:36,138 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 12:11:36,138 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 12:11:36,138 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 12:11:36,138 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 12:11:36,139 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5289904c0d34e84fc731c9bca51c5d8bc54117a73409b0419290d8896b60d2d [2024-11-12 12:11:36,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 12:11:36,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 12:11:36,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 12:11:36,437 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 12:11:36,437 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 12:11:36,438 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/31_simple_loop5_vs.i [2024-11-12 12:11:37,925 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 12:11:38,201 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 12:11:38,202 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/31_simple_loop5_vs.i [2024-11-12 12:11:38,221 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4c681e4/32303d22bbc94c44b946c070ff83a5de/FLAG1dd6fdf62 [2024-11-12 12:11:38,238 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4c681e4/32303d22bbc94c44b946c070ff83a5de [2024-11-12 12:11:38,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 12:11:38,242 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 12:11:38,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 12:11:38,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 12:11:38,248 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 12:11:38,248 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:11:38" (1/1) ... [2024-11-12 12:11:38,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e0e59df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:38, skipping insertion in model container [2024-11-12 12:11:38,249 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:11:38" (1/1) ... [2024-11-12 12:11:38,291 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 12:11:38,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:11:38,651 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 12:11:38,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:11:38,730 INFO L204 MainTranslator]: Completed translation [2024-11-12 12:11:38,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:38 WrapperNode [2024-11-12 12:11:38,731 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 12:11:38,732 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 12:11:38,733 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 12:11:38,733 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 12:11:38,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:38" (1/1) ... [2024-11-12 12:11:38,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:38" (1/1) ... [2024-11-12 12:11:38,770 INFO L138 Inliner]: procedures = 162, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2024-11-12 12:11:38,770 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 12:11:38,771 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 12:11:38,771 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 12:11:38,771 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 12:11:38,779 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:38" (1/1) ... [2024-11-12 12:11:38,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:38" (1/1) ... [2024-11-12 12:11:38,785 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:38" (1/1) ... [2024-11-12 12:11:38,785 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:38" (1/1) ... [2024-11-12 12:11:38,790 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:38" (1/1) ... [2024-11-12 12:11:38,793 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:38" (1/1) ... [2024-11-12 12:11:38,795 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:38" (1/1) ... [2024-11-12 12:11:38,796 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:38" (1/1) ... [2024-11-12 12:11:38,798 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 12:11:38,799 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 12:11:38,799 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 12:11:38,799 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 12:11:38,800 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:38" (1/1) ... [2024-11-12 12:11:38,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:11:38,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:11:38,854 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) [2024-11-12 12:11:38,857 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 [2024-11-12 12:11:38,905 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-11-12 12:11:38,905 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-11-12 12:11:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-12 12:11:38,906 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-12 12:11:38,906 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-12 12:11:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 12:11:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 12:11:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-12 12:11:38,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 12:11:38,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 12:11:38,909 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 12:11:39,064 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 12:11:39,066 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 12:11:39,267 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 12:11:39,271 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 12:11:39,306 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 12:11:39,306 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-12 12:11:39,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:11:39 BoogieIcfgContainer [2024-11-12 12:11:39,307 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 12:11:39,309 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 12:11:39,309 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 12:11:39,312 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 12:11:39,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:11:38" (1/3) ... [2024-11-12 12:11:39,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d8bc90b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:11:39, skipping insertion in model container [2024-11-12 12:11:39,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:38" (2/3) ... [2024-11-12 12:11:39,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d8bc90b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:11:39, skipping insertion in model container [2024-11-12 12:11:39,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:11:39" (3/3) ... [2024-11-12 12:11:39,316 INFO L112 eAbstractionObserver]: Analyzing ICFG 31_simple_loop5_vs.i [2024-11-12 12:11:39,335 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 12:11:39,336 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-12 12:11:39,337 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 12:11:39,416 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 12:11:39,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 108 transitions, 224 flow [2024-11-12 12:11:39,498 INFO L124 PetriNetUnfolderBase]: 7/116 cut-off events. [2024-11-12 12:11:39,498 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:11:39,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 116 events. 7/116 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 176 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 94. Up to 4 conditions per place. [2024-11-12 12:11:39,504 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 108 transitions, 224 flow [2024-11-12 12:11:39,509 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 107 transitions, 221 flow [2024-11-12 12:11:39,518 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:11:39,525 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;@1992de9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:11:39,525 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-12 12:11:39,538 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:11:39,538 INFO L124 PetriNetUnfolderBase]: 2/44 cut-off events. [2024-11-12 12:11:39,539 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:11:39,539 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:11:39,540 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:11:39,540 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-12 12:11:39,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:11:39,546 INFO L85 PathProgramCache]: Analyzing trace with hash 672884579, now seen corresponding path program 1 times [2024-11-12 12:11:39,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:11:39,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752526976] [2024-11-12 12:11:39,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:11:39,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:11:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:11:39,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:11:39,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:11:39,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752526976] [2024-11-12 12:11:39,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752526976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:11:39,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:11:39,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:11:39,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55530498] [2024-11-12 12:11:39,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:11:39,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:11:39,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:11:39,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:11:39,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:11:39,890 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 108 [2024-11-12 12:11:39,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 107 transitions, 221 flow. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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) [2024-11-12 12:11:39,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:11:39,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 108 [2024-11-12 12:11:39,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:11:40,050 INFO L124 PetriNetUnfolderBase]: 52/358 cut-off events. [2024-11-12 12:11:40,050 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-12 12:11:40,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 481 conditions, 358 events. 52/358 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1427 event pairs, 13 based on Foata normal form. 86/390 useless extension candidates. Maximal degree in co-relation 450. Up to 70 conditions per place. [2024-11-12 12:11:40,060 INFO L140 encePairwiseOnDemand]: 95/108 looper letters, 16 selfloop transitions, 4 changer transitions 0/98 dead transitions. [2024-11-12 12:11:40,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 98 transitions, 246 flow [2024-11-12 12:11:40,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:11:40,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:11:40,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2024-11-12 12:11:40,076 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2024-11-12 12:11:40,078 INFO L175 Difference]: Start difference. First operand has 107 places, 107 transitions, 221 flow. Second operand 3 states and 297 transitions. [2024-11-12 12:11:40,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 98 transitions, 246 flow [2024-11-12 12:11:40,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 98 transitions, 245 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:11:40,091 INFO L231 Difference]: Finished difference. Result has 97 places, 93 transitions, 216 flow [2024-11-12 12:11:40,093 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=97, PETRI_TRANSITIONS=93} [2024-11-12 12:11:40,099 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, -10 predicate places. [2024-11-12 12:11:40,099 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 93 transitions, 216 flow [2024-11-12 12:11:40,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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) [2024-11-12 12:11:40,100 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:11:40,100 INFO L206 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] [2024-11-12 12:11:40,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 12:11:40,102 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-12 12:11:40,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:11:40,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1897970203, now seen corresponding path program 1 times [2024-11-12 12:11:40,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:11:40,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692342997] [2024-11-12 12:11:40,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:11:40,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:11:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:11:40,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:11:40,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:11:40,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692342997] [2024-11-12 12:11:40,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692342997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:11:40,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:11:40,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:11:40,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717318826] [2024-11-12 12:11:40,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:11:40,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:11:40,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:11:40,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:11:40,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:11:40,230 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 108 [2024-11-12 12:11:40,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 93 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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) [2024-11-12 12:11:40,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:11:40,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 108 [2024-11-12 12:11:40,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:11:40,381 INFO L124 PetriNetUnfolderBase]: 87/610 cut-off events. [2024-11-12 12:11:40,381 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-12 12:11:40,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 878 conditions, 610 events. 87/610 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3282 event pairs, 17 based on Foata normal form. 0/521 useless extension candidates. Maximal degree in co-relation 846. Up to 101 conditions per place. [2024-11-12 12:11:40,390 INFO L140 encePairwiseOnDemand]: 102/108 looper letters, 16 selfloop transitions, 4 changer transitions 0/100 dead transitions. [2024-11-12 12:11:40,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 100 transitions, 273 flow [2024-11-12 12:11:40,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:11:40,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:11:40,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2024-11-12 12:11:40,395 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8734567901234568 [2024-11-12 12:11:40,396 INFO L175 Difference]: Start difference. First operand has 97 places, 93 transitions, 216 flow. Second operand 3 states and 283 transitions. [2024-11-12 12:11:40,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 100 transitions, 273 flow [2024-11-12 12:11:40,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 100 transitions, 265 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:11:40,400 INFO L231 Difference]: Finished difference. Result has 98 places, 95 transitions, 236 flow [2024-11-12 12:11:40,400 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=236, PETRI_PLACES=98, PETRI_TRANSITIONS=95} [2024-11-12 12:11:40,401 INFO L279 CegarLoopForPetriNet]: 107 programPoint places, -9 predicate places. [2024-11-12 12:11:40,401 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 95 transitions, 236 flow [2024-11-12 12:11:40,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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) [2024-11-12 12:11:40,402 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:11:40,402 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:11:40,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 12:11:40,403 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-12 12:11:40,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:11:40,406 INFO L85 PathProgramCache]: Analyzing trace with hash 696979939, now seen corresponding path program 1 times [2024-11-12 12:11:40,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:11:40,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484704194] [2024-11-12 12:11:40,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:11:40,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:11:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:11:40,432 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:11:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:11:40,491 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:11:40,492 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:11:40,493 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2024-11-12 12:11:40,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2024-11-12 12:11:40,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2024-11-12 12:11:40,497 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2024-11-12 12:11:40,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2024-11-12 12:11:40,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2024-11-12 12:11:40,500 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2024-11-12 12:11:40,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2024-11-12 12:11:40,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2024-11-12 12:11:40,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2024-11-12 12:11:40,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2024-11-12 12:11:40,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 22 remaining) [2024-11-12 12:11:40,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2024-11-12 12:11:40,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2024-11-12 12:11:40,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2024-11-12 12:11:40,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2024-11-12 12:11:40,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2024-11-12 12:11:40,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2024-11-12 12:11:40,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2024-11-12 12:11:40,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2024-11-12 12:11:40,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2024-11-12 12:11:40,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2024-11-12 12:11:40,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 12:11:40,507 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-12 12:11:40,510 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:11:40,511 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-12 12:11:40,557 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 12:11:40,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 177 places, 178 transitions, 376 flow [2024-11-12 12:11:40,596 INFO L124 PetriNetUnfolderBase]: 9/172 cut-off events. [2024-11-12 12:11:40,597 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-12 12:11:40,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 172 events. 9/172 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 348 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 179. Up to 6 conditions per place. [2024-11-12 12:11:40,599 INFO L82 GeneralOperation]: Start removeDead. Operand has 177 places, 178 transitions, 376 flow [2024-11-12 12:11:40,602 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 152 transitions, 317 flow [2024-11-12 12:11:40,604 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:11:40,605 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;@1992de9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:11:40,605 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-11-12 12:11:40,611 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:11:40,612 INFO L124 PetriNetUnfolderBase]: 2/42 cut-off events. [2024-11-12 12:11:40,612 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:11:40,613 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:11:40,613 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:11:40,613 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-12 12:11:40,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:11:40,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1707766232, now seen corresponding path program 1 times [2024-11-12 12:11:40,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:11:40,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912919903] [2024-11-12 12:11:40,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:11:40,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:11:40,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:11:40,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:11:40,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:11:40,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912919903] [2024-11-12 12:11:40,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912919903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:11:40,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:11:40,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:11:40,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429979762] [2024-11-12 12:11:40,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:11:40,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:11:40,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:11:40,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:11:40,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:11:40,722 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 178 [2024-11-12 12:11:40,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 152 transitions, 317 flow. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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) [2024-11-12 12:11:40,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:11:40,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 178 [2024-11-12 12:11:40,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:11:41,233 INFO L124 PetriNetUnfolderBase]: 881/3568 cut-off events. [2024-11-12 12:11:41,234 INFO L125 PetriNetUnfolderBase]: For 155/155 co-relation queries the response was YES. [2024-11-12 12:11:41,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5092 conditions, 3568 events. 881/3568 cut-off events. For 155/155 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 30852 event pairs, 288 based on Foata normal form. 795/3720 useless extension candidates. Maximal degree in co-relation 5060. Up to 813 conditions per place. [2024-11-12 12:11:41,273 INFO L140 encePairwiseOnDemand]: 159/178 looper letters, 28 selfloop transitions, 8 changer transitions 0/149 dead transitions. [2024-11-12 12:11:41,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 149 transitions, 391 flow [2024-11-12 12:11:41,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:11:41,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:11:41,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 469 transitions. [2024-11-12 12:11:41,277 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8782771535580525 [2024-11-12 12:11:41,277 INFO L175 Difference]: Start difference. First operand has 153 places, 152 transitions, 317 flow. Second operand 3 states and 469 transitions. [2024-11-12 12:11:41,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 149 transitions, 391 flow [2024-11-12 12:11:41,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 149 transitions, 390 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:11:41,283 INFO L231 Difference]: Finished difference. Result has 141 places, 141 transitions, 348 flow [2024-11-12 12:11:41,283 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=141, PETRI_TRANSITIONS=141} [2024-11-12 12:11:41,284 INFO L279 CegarLoopForPetriNet]: 153 programPoint places, -12 predicate places. [2024-11-12 12:11:41,285 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 141 transitions, 348 flow [2024-11-12 12:11:41,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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) [2024-11-12 12:11:41,286 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:11:41,287 INFO L206 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] [2024-11-12 12:11:41,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 12:11:41,287 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-12 12:11:41,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:11:41,288 INFO L85 PathProgramCache]: Analyzing trace with hash -485823702, now seen corresponding path program 1 times [2024-11-12 12:11:41,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:11:41,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291687238] [2024-11-12 12:11:41,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:11:41,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:11:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:11:41,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:11:41,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:11:41,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291687238] [2024-11-12 12:11:41,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291687238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:11:41,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:11:41,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:11:41,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745069591] [2024-11-12 12:11:41,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:11:41,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:11:41,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:11:41,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:11:41,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:11:41,401 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 178 [2024-11-12 12:11:41,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 141 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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) [2024-11-12 12:11:41,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:11:41,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 178 [2024-11-12 12:11:41,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:11:42,866 INFO L124 PetriNetUnfolderBase]: 2733/11119 cut-off events. [2024-11-12 12:11:42,867 INFO L125 PetriNetUnfolderBase]: For 718/721 co-relation queries the response was YES. [2024-11-12 12:11:42,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16972 conditions, 11119 events. 2733/11119 cut-off events. For 718/721 co-relation queries the response was YES. Maximal size of possible extension queue 375. Compared 126961 event pairs, 711 based on Foata normal form. 0/9269 useless extension candidates. Maximal degree in co-relation 16939. Up to 2139 conditions per place. [2024-11-12 12:11:43,044 INFO L140 encePairwiseOnDemand]: 167/178 looper letters, 28 selfloop transitions, 8 changer transitions 0/157 dead transitions. [2024-11-12 12:11:43,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 157 transitions, 460 flow [2024-11-12 12:11:43,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:11:43,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:11:43,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2024-11-12 12:11:43,048 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.848314606741573 [2024-11-12 12:11:43,048 INFO L175 Difference]: Start difference. First operand has 141 places, 141 transitions, 348 flow. Second operand 3 states and 453 transitions. [2024-11-12 12:11:43,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 157 transitions, 460 flow [2024-11-12 12:11:43,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 157 transitions, 444 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:11:43,062 INFO L231 Difference]: Finished difference. Result has 143 places, 149 transitions, 402 flow [2024-11-12 12:11:43,064 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=143, PETRI_TRANSITIONS=149} [2024-11-12 12:11:43,065 INFO L279 CegarLoopForPetriNet]: 153 programPoint places, -10 predicate places. [2024-11-12 12:11:43,066 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 149 transitions, 402 flow [2024-11-12 12:11:43,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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) [2024-11-12 12:11:43,066 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:11:43,067 INFO L206 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] [2024-11-12 12:11:43,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 12:11:43,067 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-12 12:11:43,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:11:43,069 INFO L85 PathProgramCache]: Analyzing trace with hash -624411761, now seen corresponding path program 1 times [2024-11-12 12:11:43,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:11:43,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222605728] [2024-11-12 12:11:43,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:11:43,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:11:43,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:11:43,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:11:43,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:11:43,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222605728] [2024-11-12 12:11:43,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222605728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:11:43,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:11:43,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:11:43,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704353056] [2024-11-12 12:11:43,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:11:43,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:11:43,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:11:43,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:11:43,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:11:43,163 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 178 [2024-11-12 12:11:43,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 149 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 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) [2024-11-12 12:11:43,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:11:43,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 178 [2024-11-12 12:11:43,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:11:44,769 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([489] L694-->L694-1: Formula: (= |v_#race~a~0_1| 0) InVars {} OutVars{#race~a~0=|v_#race~a~0_1|} AuxVars[] AssignedVars[#race~a~0][50], [130#L695-5true, 172#true, 44#L708-2true, Black: 180#true, 190#true, 187#(= |#race~b~0| 0), 176#true, Black: 185#true, 118#L694-1true, 174#true, 94#L717-4true]) [2024-11-12 12:11:44,770 INFO L294 olderBase$Statistics]: this new event has 99 ancestors and is cut-off event [2024-11-12 12:11:44,770 INFO L297 olderBase$Statistics]: existing Event has 99 ancestors and is cut-off event [2024-11-12 12:11:44,770 INFO L297 olderBase$Statistics]: existing Event has 67 ancestors and is cut-off event [2024-11-12 12:11:44,770 INFO L297 olderBase$Statistics]: existing Event has 99 ancestors and is cut-off event [2024-11-12 12:11:45,145 INFO L124 PetriNetUnfolderBase]: 3513/14476 cut-off events. [2024-11-12 12:11:45,146 INFO L125 PetriNetUnfolderBase]: For 912/917 co-relation queries the response was YES. [2024-11-12 12:11:45,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22818 conditions, 14476 events. 3513/14476 cut-off events. For 912/917 co-relation queries the response was YES. Maximal size of possible extension queue 510. Compared 173848 event pairs, 1504 based on Foata normal form. 0/12195 useless extension candidates. Maximal degree in co-relation 22784. Up to 3347 conditions per place. [2024-11-12 12:11:45,268 INFO L140 encePairwiseOnDemand]: 172/178 looper letters, 21 selfloop transitions, 5 changer transitions 0/158 dead transitions. [2024-11-12 12:11:45,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 158 transitions, 477 flow [2024-11-12 12:11:45,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:11:45,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:11:45,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 459 transitions. [2024-11-12 12:11:45,270 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8595505617977528 [2024-11-12 12:11:45,270 INFO L175 Difference]: Start difference. First operand has 143 places, 149 transitions, 402 flow. Second operand 3 states and 459 transitions. [2024-11-12 12:11:45,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 158 transitions, 477 flow [2024-11-12 12:11:45,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 158 transitions, 461 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:11:45,279 INFO L231 Difference]: Finished difference. Result has 145 places, 153 transitions, 424 flow [2024-11-12 12:11:45,280 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=424, PETRI_PLACES=145, PETRI_TRANSITIONS=153} [2024-11-12 12:11:45,283 INFO L279 CegarLoopForPetriNet]: 153 programPoint places, -8 predicate places. [2024-11-12 12:11:45,284 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 153 transitions, 424 flow [2024-11-12 12:11:45,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 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) [2024-11-12 12:11:45,284 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:11:45,285 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:11:45,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 12:11:45,285 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-12 12:11:45,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:11:45,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1281657640, now seen corresponding path program 1 times [2024-11-12 12:11:45,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:11:45,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403808791] [2024-11-12 12:11:45,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:11:45,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:11:45,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:11:45,303 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:11:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:11:45,319 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:11:45,319 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:11:45,319 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 32 remaining) [2024-11-12 12:11:45,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (30 of 32 remaining) [2024-11-12 12:11:45,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (29 of 32 remaining) [2024-11-12 12:11:45,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (28 of 32 remaining) [2024-11-12 12:11:45,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (27 of 32 remaining) [2024-11-12 12:11:45,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (26 of 32 remaining) [2024-11-12 12:11:45,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (25 of 32 remaining) [2024-11-12 12:11:45,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (24 of 32 remaining) [2024-11-12 12:11:45,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (23 of 32 remaining) [2024-11-12 12:11:45,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (22 of 32 remaining) [2024-11-12 12:11:45,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (21 of 32 remaining) [2024-11-12 12:11:45,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 32 remaining) [2024-11-12 12:11:45,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (19 of 32 remaining) [2024-11-12 12:11:45,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (18 of 32 remaining) [2024-11-12 12:11:45,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (17 of 32 remaining) [2024-11-12 12:11:45,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (16 of 32 remaining) [2024-11-12 12:11:45,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (15 of 32 remaining) [2024-11-12 12:11:45,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (14 of 32 remaining) [2024-11-12 12:11:45,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (13 of 32 remaining) [2024-11-12 12:11:45,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (12 of 32 remaining) [2024-11-12 12:11:45,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (11 of 32 remaining) [2024-11-12 12:11:45,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (10 of 32 remaining) [2024-11-12 12:11:45,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (9 of 32 remaining) [2024-11-12 12:11:45,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (8 of 32 remaining) [2024-11-12 12:11:45,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (7 of 32 remaining) [2024-11-12 12:11:45,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (6 of 32 remaining) [2024-11-12 12:11:45,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (5 of 32 remaining) [2024-11-12 12:11:45,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (4 of 32 remaining) [2024-11-12 12:11:45,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 32 remaining) [2024-11-12 12:11:45,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 32 remaining) [2024-11-12 12:11:45,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 32 remaining) [2024-11-12 12:11:45,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 32 remaining) [2024-11-12 12:11:45,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 12:11:45,325 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-12 12:11:45,325 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:11:45,325 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-12 12:11:45,373 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 12:11:45,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 246 places, 248 transitions, 532 flow [2024-11-12 12:11:45,400 INFO L124 PetriNetUnfolderBase]: 11/228 cut-off events. [2024-11-12 12:11:45,400 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-12 12:11:45,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 228 events. 11/228 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 575 event pairs, 0 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 239. Up to 8 conditions per place. [2024-11-12 12:11:45,402 INFO L82 GeneralOperation]: Start removeDead. Operand has 246 places, 248 transitions, 532 flow [2024-11-12 12:11:45,405 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 199 places, 197 transitions, 415 flow [2024-11-12 12:11:45,407 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:11:45,408 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;@1992de9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:11:45,408 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-11-12 12:11:45,413 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:11:45,413 INFO L124 PetriNetUnfolderBase]: 2/44 cut-off events. [2024-11-12 12:11:45,414 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:11:45,414 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:11:45,414 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:11:45,414 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-12 12:11:45,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:11:45,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1735086381, now seen corresponding path program 1 times [2024-11-12 12:11:45,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:11:45,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72595474] [2024-11-12 12:11:45,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:11:45,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:11:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:11:45,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:11:45,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:11:45,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72595474] [2024-11-12 12:11:45,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72595474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:11:45,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:11:45,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:11:45,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775129582] [2024-11-12 12:11:45,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:11:45,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:11:45,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:11:45,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:11:45,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:11:45,494 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 248 [2024-11-12 12:11:45,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 197 transitions, 415 flow. Second operand has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 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) [2024-11-12 12:11:45,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:11:45,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 248 [2024-11-12 12:11:45,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:11:48,803 INFO L124 PetriNetUnfolderBase]: 10763/31503 cut-off events. [2024-11-12 12:11:48,804 INFO L125 PetriNetUnfolderBase]: For 2767/2767 co-relation queries the response was YES. [2024-11-12 12:11:48,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48086 conditions, 31503 events. 10763/31503 cut-off events. For 2767/2767 co-relation queries the response was YES. Maximal size of possible extension queue 1081. Compared 373569 event pairs, 3318 based on Foata normal form. 6558/32271 useless extension candidates. Maximal degree in co-relation 48053. Up to 8400 conditions per place. [2024-11-12 12:11:49,278 INFO L140 encePairwiseOnDemand]: 224/248 looper letters, 38 selfloop transitions, 11 changer transitions 0/197 dead transitions. [2024-11-12 12:11:49,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 197 transitions, 528 flow [2024-11-12 12:11:49,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:11:49,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:11:49,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 638 transitions. [2024-11-12 12:11:49,281 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8575268817204301 [2024-11-12 12:11:49,281 INFO L175 Difference]: Start difference. First operand has 199 places, 197 transitions, 415 flow. Second operand 3 states and 638 transitions. [2024-11-12 12:11:49,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 197 transitions, 528 flow [2024-11-12 12:11:49,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 197 transitions, 523 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-12 12:11:49,288 INFO L231 Difference]: Finished difference. Result has 184 places, 186 transitions, 464 flow [2024-11-12 12:11:49,289 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=464, PETRI_PLACES=184, PETRI_TRANSITIONS=186} [2024-11-12 12:11:49,290 INFO L279 CegarLoopForPetriNet]: 199 programPoint places, -15 predicate places. [2024-11-12 12:11:49,290 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 186 transitions, 464 flow [2024-11-12 12:11:49,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 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) [2024-11-12 12:11:49,291 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:11:49,291 INFO L206 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] [2024-11-12 12:11:49,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 12:11:49,291 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-12 12:11:49,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:11:49,293 INFO L85 PathProgramCache]: Analyzing trace with hash 970729583, now seen corresponding path program 1 times [2024-11-12 12:11:49,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:11:49,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886440154] [2024-11-12 12:11:49,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:11:49,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:11:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:11:49,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:11:49,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:11:49,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886440154] [2024-11-12 12:11:49,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886440154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:11:49,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:11:49,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:11:49,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104747078] [2024-11-12 12:11:49,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:11:49,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:11:49,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:11:49,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:11:49,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:11:49,373 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 248 [2024-11-12 12:11:49,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 186 transitions, 464 flow. Second operand has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 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) [2024-11-12 12:11:49,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:11:49,375 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 248 [2024-11-12 12:11:49,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:12:03,484 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([707] L695-4-->L695-5: Formula: (= |v_#race~a~0_4| |v_thr2Thread1of3ForFork0_#t~nondet3_3|) InVars {thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|} OutVars{thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|, #race~a~0=|v_#race~a~0_4|} AuxVars[] AssignedVars[#race~a~0][83], [26#L694-2true, 241#true, 73#L694-2true, 243#true, 180#L717-4true, 249#true, 103#L695-5true, 239#true, Black: 251#(= |#race~a~0| 0), 144#L707-3true, 237#true, 256#(= |#race~b~0| 0)]) [2024-11-12 12:12:03,485 INFO L294 olderBase$Statistics]: this new event has 109 ancestors and is cut-off event [2024-11-12 12:12:03,485 INFO L297 olderBase$Statistics]: existing Event has 109 ancestors and is cut-off event [2024-11-12 12:12:03,485 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is cut-off event [2024-11-12 12:12:03,485 INFO L297 olderBase$Statistics]: existing Event has 87 ancestors and is cut-off event [2024-11-12 12:12:04,138 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([707] L695-4-->L695-5: Formula: (= |v_#race~a~0_4| |v_thr2Thread1of3ForFork0_#t~nondet3_3|) InVars {thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|} OutVars{thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|, #race~a~0=|v_#race~a~0_4|} AuxVars[] AssignedVars[#race~a~0][83], [139#L707-4true, 26#L694-2true, 241#true, 73#L694-2true, 243#true, 180#L717-4true, 249#true, 103#L695-5true, 239#true, Black: 251#(= |#race~a~0| 0), 237#true, 256#(= |#race~b~0| 0)]) [2024-11-12 12:12:04,138 INFO L294 olderBase$Statistics]: this new event has 110 ancestors and is cut-off event [2024-11-12 12:12:04,139 INFO L297 olderBase$Statistics]: existing Event has 88 ancestors and is cut-off event [2024-11-12 12:12:04,139 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2024-11-12 12:12:04,139 INFO L297 olderBase$Statistics]: existing Event has 78 ancestors and is cut-off event [2024-11-12 12:12:04,830 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([790] L695-->L695-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][147], [26#L694-2true, 241#true, 251#(= |#race~a~0| 0), 243#true, 180#L717-4true, 50#L695-1true, 187#L695-1true, 239#true, Black: 249#true, 237#true, 142#L706-3true, 256#(= |#race~b~0| 0)]) [2024-11-12 12:12:04,830 INFO L294 olderBase$Statistics]: this new event has 117 ancestors and is cut-off event [2024-11-12 12:12:04,830 INFO L297 olderBase$Statistics]: existing Event has 75 ancestors and is cut-off event [2024-11-12 12:12:04,830 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-11-12 12:12:04,830 INFO L297 olderBase$Statistics]: existing Event has 95 ancestors and is cut-off event [2024-11-12 12:12:04,908 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([707] L695-4-->L695-5: Formula: (= |v_#race~a~0_4| |v_thr2Thread1of3ForFork0_#t~nondet3_3|) InVars {thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|} OutVars{thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|, #race~a~0=|v_#race~a~0_4|} AuxVars[] AssignedVars[#race~a~0][83], [26#L694-2true, 241#true, 29#L708-2true, 73#L694-2true, 243#true, 180#L717-4true, 103#L695-5true, 249#true, 239#true, Black: 251#(= |#race~a~0| 0), 237#true, 256#(= |#race~b~0| 0)]) [2024-11-12 12:12:04,908 INFO L294 olderBase$Statistics]: this new event has 112 ancestors and is cut-off event [2024-11-12 12:12:04,908 INFO L297 olderBase$Statistics]: existing Event has 80 ancestors and is cut-off event [2024-11-12 12:12:04,908 INFO L297 olderBase$Statistics]: existing Event has 112 ancestors and is cut-off event [2024-11-12 12:12:04,909 INFO L297 olderBase$Statistics]: existing Event has 90 ancestors and is cut-off event [2024-11-12 12:12:05,460 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([707] L695-4-->L695-5: Formula: (= |v_#race~a~0_4| |v_thr2Thread1of3ForFork0_#t~nondet3_3|) InVars {thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|} OutVars{thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|, #race~a~0=|v_#race~a~0_4|} AuxVars[] AssignedVars[#race~a~0][83], [241#true, 73#L694-2true, 122#L694-1true, 243#true, 180#L717-4true, 103#L695-5true, 249#true, 239#true, Black: 251#(= |#race~a~0| 0), 237#true, 142#L706-3true, 256#(= |#race~b~0| 0)]) [2024-11-12 12:12:05,460 INFO L294 olderBase$Statistics]: this new event has 114 ancestors and is cut-off event [2024-11-12 12:12:05,460 INFO L297 olderBase$Statistics]: existing Event has 72 ancestors and is cut-off event [2024-11-12 12:12:05,460 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2024-11-12 12:12:05,461 INFO L297 olderBase$Statistics]: existing Event has 92 ancestors and is cut-off event [2024-11-12 12:12:05,463 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([790] L695-->L695-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][147], [26#L694-2true, 241#true, 251#(= |#race~a~0| 0), 243#true, 180#L717-4true, 50#L695-1true, 239#true, Black: 249#true, 237#true, 125#L695-2true, 142#L706-3true, 256#(= |#race~b~0| 0)]) [2024-11-12 12:12:05,463 INFO L294 olderBase$Statistics]: this new event has 118 ancestors and is cut-off event [2024-11-12 12:12:05,463 INFO L297 olderBase$Statistics]: existing Event has 96 ancestors and is cut-off event [2024-11-12 12:12:05,464 INFO L297 olderBase$Statistics]: existing Event has 76 ancestors and is cut-off event [2024-11-12 12:12:05,464 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-11-12 12:12:05,738 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([707] L695-4-->L695-5: Formula: (= |v_#race~a~0_4| |v_thr2Thread1of3ForFork0_#t~nondet3_3|) InVars {thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|} OutVars{thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|, #race~a~0=|v_#race~a~0_4|} AuxVars[] AssignedVars[#race~a~0][83], [26#L694-2true, 241#true, 73#L694-2true, 243#true, 180#L717-4true, 249#true, 103#L695-5true, 239#true, Black: 251#(= |#race~a~0| 0), 237#true, 142#L706-3true, 256#(= |#race~b~0| 0)]) [2024-11-12 12:12:05,739 INFO L294 olderBase$Statistics]: this new event has 115 ancestors and is cut-off event [2024-11-12 12:12:05,739 INFO L297 olderBase$Statistics]: existing Event has 93 ancestors and is cut-off event [2024-11-12 12:12:05,739 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-11-12 12:12:05,739 INFO L297 olderBase$Statistics]: existing Event has 83 ancestors and is cut-off event [2024-11-12 12:12:06,081 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([707] L695-4-->L695-5: Formula: (= |v_#race~a~0_4| |v_thr2Thread1of3ForFork0_#t~nondet3_3|) InVars {thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|} OutVars{thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|, #race~a~0=|v_#race~a~0_4|} AuxVars[] AssignedVars[#race~a~0][83], [26#L694-2true, 241#true, 73#L694-2true, 243#true, 180#L717-4true, 103#L695-5true, 249#true, 239#true, Black: 251#(= |#race~a~0| 0), 237#true, 142#L706-3true, 256#(= |#race~b~0| 0)]) [2024-11-12 12:12:06,082 INFO L294 olderBase$Statistics]: this new event has 115 ancestors and is cut-off event [2024-11-12 12:12:06,082 INFO L297 olderBase$Statistics]: existing Event has 93 ancestors and is cut-off event [2024-11-12 12:12:06,082 INFO L297 olderBase$Statistics]: existing Event has 115 ancestors and is cut-off event [2024-11-12 12:12:06,082 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-11-12 12:12:06,082 INFO L297 olderBase$Statistics]: existing Event has 83 ancestors and is cut-off event [2024-11-12 12:12:06,083 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([707] L695-4-->L695-5: Formula: (= |v_#race~a~0_4| |v_thr2Thread1of3ForFork0_#t~nondet3_3|) InVars {thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|} OutVars{thr2Thread1of3ForFork0_#t~nondet3=|v_thr2Thread1of3ForFork0_#t~nondet3_3|, #race~a~0=|v_#race~a~0_4|} AuxVars[] AssignedVars[#race~a~0][83], [26#L694-2true, 241#true, 243#true, 180#L717-4true, 103#L695-5true, 249#true, 108#L694-1true, 239#true, Black: 251#(= |#race~a~0| 0), 237#true, 142#L706-3true, 256#(= |#race~b~0| 0)]) [2024-11-12 12:12:06,083 INFO L294 olderBase$Statistics]: this new event has 114 ancestors and is cut-off event [2024-11-12 12:12:06,083 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2024-11-12 12:12:06,083 INFO L297 olderBase$Statistics]: existing Event has 92 ancestors and is cut-off event [2024-11-12 12:12:06,083 INFO L297 olderBase$Statistics]: existing Event has 72 ancestors and is cut-off event [2024-11-12 12:12:07,162 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([790] L695-->L695-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][147], [130#L695-2true, 241#true, 251#(= |#race~a~0| 0), 243#true, 180#L717-4true, 50#L695-1true, 103#L695-5true, 239#true, Black: 249#true, 237#true, 142#L706-3true, 256#(= |#race~b~0| 0)]) [2024-11-12 12:12:07,163 INFO L294 olderBase$Statistics]: this new event has 118 ancestors and is cut-off event [2024-11-12 12:12:07,163 INFO L297 olderBase$Statistics]: existing Event has 96 ancestors and is cut-off event [2024-11-12 12:12:07,163 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-11-12 12:12:07,163 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-11-12 12:12:09,498 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([854] L707-2-->L707-3: Formula: (= |v_#race~b~0_7| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_7|} AuxVars[] AssignedVars[#race~b~0][37], [90#thr2Err0ASSERT_VIOLATIONDATA_RACEtrue, 241#true, 251#(= |#race~a~0| 0), 243#true, 180#L717-4true, 53#L693-2true, 239#true, Black: 249#true, 52#L695-5true, 144#L707-3true, 237#true, 256#(= |#race~b~0| 0)]) [2024-11-12 12:12:09,498 INFO L294 olderBase$Statistics]: this new event has 138 ancestors and is cut-off event [2024-11-12 12:12:09,498 INFO L297 olderBase$Statistics]: existing Event has 116 ancestors and is cut-off event [2024-11-12 12:12:09,498 INFO L297 olderBase$Statistics]: existing Event has 106 ancestors and is cut-off event [2024-11-12 12:12:09,498 INFO L297 olderBase$Statistics]: existing Event has 106 ancestors and is cut-off event [2024-11-12 12:12:09,530 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([737] L694-->L694-1: Formula: (= |v_#race~a~0_1| 0) InVars {} OutVars{#race~a~0=|v_#race~a~0_1|} AuxVars[] AssignedVars[#race~a~0][76], [90#thr2Err0ASSERT_VIOLATIONDATA_RACEtrue, 241#true, 251#(= |#race~a~0| 0), 122#L694-1true, 243#true, 180#L717-4true, 128#L707-2true, 254#true, 239#true, Black: 249#true, 52#L695-5true, 237#true]) [2024-11-12 12:12:09,530 INFO L294 olderBase$Statistics]: this new event has 139 ancestors and is cut-off event [2024-11-12 12:12:09,530 INFO L297 olderBase$Statistics]: existing Event has 107 ancestors and is cut-off event [2024-11-12 12:12:09,530 INFO L297 olderBase$Statistics]: existing Event has 107 ancestors and is cut-off event [2024-11-12 12:12:09,530 INFO L297 olderBase$Statistics]: existing Event has 117 ancestors and is cut-off event [2024-11-12 12:12:09,530 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([737] L694-->L694-1: Formula: (= |v_#race~a~0_1| 0) InVars {} OutVars{#race~a~0=|v_#race~a~0_1|} AuxVars[] AssignedVars[#race~a~0][76], [90#thr2Err0ASSERT_VIOLATIONDATA_RACEtrue, 241#true, 251#(= |#race~a~0| 0), 122#L694-1true, 243#true, 180#L717-4true, 254#true, 239#true, Black: 249#true, 52#L695-5true, 237#true, 232#L707-1true]) [2024-11-12 12:12:09,530 INFO L294 olderBase$Statistics]: this new event has 138 ancestors and is cut-off event [2024-11-12 12:12:09,530 INFO L297 olderBase$Statistics]: existing Event has 106 ancestors and is cut-off event [2024-11-12 12:12:09,530 INFO L297 olderBase$Statistics]: existing Event has 106 ancestors and is cut-off event [2024-11-12 12:12:09,531 INFO L297 olderBase$Statistics]: existing Event has 116 ancestors and is cut-off event [2024-11-12 12:12:09,757 INFO L124 PetriNetUnfolderBase]: 52970/162108 cut-off events. [2024-11-12 12:12:09,757 INFO L125 PetriNetUnfolderBase]: For 11564/11735 co-relation queries the response was YES. [2024-11-12 12:12:10,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258821 conditions, 162108 events. 52970/162108 cut-off events. For 11564/11735 co-relation queries the response was YES. Maximal size of possible extension queue 4788. Compared 2495395 event pairs, 15099 based on Foata normal form. 0/134655 useless extension candidates. Maximal degree in co-relation 258787. Up to 35464 conditions per place. [2024-11-12 12:12:12,428 INFO L140 encePairwiseOnDemand]: 233/248 looper letters, 38 selfloop transitions, 11 changer transitions 0/208 dead transitions. [2024-11-12 12:12:12,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 208 transitions, 619 flow [2024-11-12 12:12:12,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:12:12,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:12:12,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 620 transitions. [2024-11-12 12:12:12,432 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2024-11-12 12:12:12,432 INFO L175 Difference]: Start difference. First operand has 184 places, 186 transitions, 464 flow. Second operand 3 states and 620 transitions. [2024-11-12 12:12:12,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 208 transitions, 619 flow [2024-11-12 12:12:12,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 208 transitions, 597 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:12:12,544 INFO L231 Difference]: Finished difference. Result has 186 places, 197 transitions, 538 flow [2024-11-12 12:12:12,545 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=538, PETRI_PLACES=186, PETRI_TRANSITIONS=197} [2024-11-12 12:12:12,545 INFO L279 CegarLoopForPetriNet]: 199 programPoint places, -13 predicate places. [2024-11-12 12:12:12,545 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 197 transitions, 538 flow [2024-11-12 12:12:12,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 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) [2024-11-12 12:12:12,546 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:12:12,546 INFO L206 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] [2024-11-12 12:12:12,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 12:12:12,546 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-12 12:12:12,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:12:12,547 INFO L85 PathProgramCache]: Analyzing trace with hash -746709020, now seen corresponding path program 1 times [2024-11-12 12:12:12,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:12:12,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50099717] [2024-11-12 12:12:12,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:12:12,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:12:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:12:12,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:12:12,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:12:12,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50099717] [2024-11-12 12:12:12,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50099717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:12:12,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:12:12,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:12:12,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478512376] [2024-11-12 12:12:12,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:12:12,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:12:12,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:12:12,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:12:12,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:12:12,621 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 248 [2024-11-12 12:12:12,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 197 transitions, 538 flow. Second operand has 3 states, 3 states have (on average 202.0) internal successors, (606), 3 states have internal predecessors, (606), 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) [2024-11-12 12:12:12,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:12:12,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 248 [2024-11-12 12:12:12,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand