./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic.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-race-challenges/thread-join-array-dynamic.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 e281184c6e6629633efbcea3a2283a3a54dcfd040e15fa389b71c86937ccbf2b --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 12:44:22,868 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 12:44:22,918 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-12 12:44:22,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 12:44:22,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 12:44:22,951 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 12:44:22,954 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 12:44:22,955 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 12:44:22,955 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 12:44:22,955 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 12:44:22,956 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 12:44:22,956 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 12:44:22,956 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 12:44:22,957 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 12:44:22,957 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 12:44:22,957 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 12:44:22,957 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 12:44:22,958 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 12:44:22,958 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 12:44:22,960 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 12:44:22,962 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 12:44:22,963 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 12:44:22,963 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-12 12:44:22,963 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 12:44:22,963 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 12:44:22,964 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 12:44:22,964 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 12:44:22,964 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 12:44:22,964 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 12:44:22,966 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 12:44:22,966 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 12:44:22,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:44:22,967 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 12:44:22,967 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 12:44:22,967 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 12:44:22,968 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 12:44:22,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 12:44:22,968 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 12:44:22,969 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 12:44:22,969 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 12:44:22,969 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 12:44:22,970 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e281184c6e6629633efbcea3a2283a3a54dcfd040e15fa389b71c86937ccbf2b [2024-11-12 12:44:23,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 12:44:23,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 12:44:23,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 12:44:23,212 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 12:44:23,212 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 12:44:23,213 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic.i [2024-11-12 12:44:24,658 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 12:44:24,904 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 12:44:24,904 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic.i [2024-11-12 12:44:24,921 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc2217bc0/a591942eea5a437cbaa961cd347b6154/FLAG00ef513bf [2024-11-12 12:44:24,941 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc2217bc0/a591942eea5a437cbaa961cd347b6154 [2024-11-12 12:44:24,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 12:44:24,944 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 12:44:24,945 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 12:44:24,945 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 12:44:24,949 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 12:44:24,950 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:44:24" (1/1) ... [2024-11-12 12:44:24,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bce0b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:24, skipping insertion in model container [2024-11-12 12:44:24,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:44:24" (1/1) ... [2024-11-12 12:44:24,990 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 12:44:25,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:44:25,336 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 12:44:25,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:44:25,422 INFO L204 MainTranslator]: Completed translation [2024-11-12 12:44:25,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:25 WrapperNode [2024-11-12 12:44:25,423 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 12:44:25,424 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 12:44:25,424 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 12:44:25,424 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 12:44:25,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:25" (1/1) ... [2024-11-12 12:44:25,446 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:25" (1/1) ... [2024-11-12 12:44:25,462 INFO L138 Inliner]: procedures = 265, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2024-11-12 12:44:25,463 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 12:44:25,463 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 12:44:25,463 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 12:44:25,463 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 12:44:25,472 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:25" (1/1) ... [2024-11-12 12:44:25,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:25" (1/1) ... [2024-11-12 12:44:25,475 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:25" (1/1) ... [2024-11-12 12:44:25,476 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:25" (1/1) ... [2024-11-12 12:44:25,481 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:25" (1/1) ... [2024-11-12 12:44:25,483 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:25" (1/1) ... [2024-11-12 12:44:25,484 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:25" (1/1) ... [2024-11-12 12:44:25,484 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:25" (1/1) ... [2024-11-12 12:44:25,486 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 12:44:25,487 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 12:44:25,487 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 12:44:25,487 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 12:44:25,488 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:25" (1/1) ... [2024-11-12 12:44:25,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:44:25,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:44:25,526 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 12:44:25,534 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 12:44:25,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 12:44:25,568 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-12 12:44:25,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-12 12:44:25,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-12 12:44:25,568 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-12 12:44:25,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 12:44:25,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 12:44:25,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 12:44:25,569 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-12 12:44:25,569 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-12 12:44:25,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 12:44:25,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 12:44:25,570 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 12:44:25,680 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 12:44:25,682 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 12:44:25,822 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 12:44:25,822 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 12:44:25,839 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 12:44:25,839 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-12 12:44:25,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:44:25 BoogieIcfgContainer [2024-11-12 12:44:25,840 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 12:44:25,845 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 12:44:25,845 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 12:44:25,851 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 12:44:25,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:44:24" (1/3) ... [2024-11-12 12:44:25,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2b883b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:44:25, skipping insertion in model container [2024-11-12 12:44:25,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:25" (2/3) ... [2024-11-12 12:44:25,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2b883b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:44:25, skipping insertion in model container [2024-11-12 12:44:25,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:44:25" (3/3) ... [2024-11-12 12:44:25,855 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-array-dynamic.i [2024-11-12 12:44:25,871 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 12:44:25,871 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-12 12:44:25,871 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 12:44:25,932 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-12 12:44:25,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 91 transitions, 189 flow [2024-11-12 12:44:26,034 INFO L124 PetriNetUnfolderBase]: 6/125 cut-off events. [2024-11-12 12:44:26,035 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:44:26,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 125 events. 6/125 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 209 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 62. Up to 4 conditions per place. [2024-11-12 12:44:26,039 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 91 transitions, 189 flow [2024-11-12 12:44:26,059 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 91 transitions, 189 flow [2024-11-12 12:44:26,065 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:44:26,070 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;@3a48f8ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:44:26,070 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-12 12:44:26,078 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:44:26,078 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-11-12 12:44:26,079 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:44:26,079 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:26,079 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] [2024-11-12 12:44:26,080 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-12 12:44:26,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:26,084 INFO L85 PathProgramCache]: Analyzing trace with hash 637167217, now seen corresponding path program 1 times [2024-11-12 12:44:26,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:26,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047729015] [2024-11-12 12:44:26,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:26,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:26,335 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 12:44:26,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:26,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047729015] [2024-11-12 12:44:26,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047729015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:26,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:26,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:44:26,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983320246] [2024-11-12 12:44:26,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:26,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:44:26,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:26,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:44:26,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:44:26,396 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 91 [2024-11-12 12:44:26,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 91 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 12:44:26,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:26,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 91 [2024-11-12 12:44:26,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:26,459 INFO L124 PetriNetUnfolderBase]: 8/163 cut-off events. [2024-11-12 12:44:26,460 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-12 12:44:26,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 163 events. 8/163 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 414 event pairs, 1 based on Foata normal form. 8/154 useless extension candidates. Maximal degree in co-relation 122. Up to 16 conditions per place. [2024-11-12 12:44:26,462 INFO L140 encePairwiseOnDemand]: 84/91 looper letters, 8 selfloop transitions, 3 changer transitions 2/92 dead transitions. [2024-11-12 12:44:26,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 92 transitions, 215 flow [2024-11-12 12:44:26,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:44:26,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:44:26,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2024-11-12 12:44:26,473 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9377289377289377 [2024-11-12 12:44:26,474 INFO L175 Difference]: Start difference. First operand has 90 places, 91 transitions, 189 flow. Second operand 3 states and 256 transitions. [2024-11-12 12:44:26,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 92 transitions, 215 flow [2024-11-12 12:44:26,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 92 transitions, 215 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:44:26,480 INFO L231 Difference]: Finished difference. Result has 94 places, 89 transitions, 203 flow [2024-11-12 12:44:26,484 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=203, PETRI_PLACES=94, PETRI_TRANSITIONS=89} [2024-11-12 12:44:26,487 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2024-11-12 12:44:26,489 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 89 transitions, 203 flow [2024-11-12 12:44:26,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 12:44:26,490 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:26,490 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] [2024-11-12 12:44:26,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 12:44:26,491 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-12 12:44:26,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:26,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1740217746, now seen corresponding path program 1 times [2024-11-12 12:44:26,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:26,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819684547] [2024-11-12 12:44:26,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:26,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:27,200 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 12:44:27,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:27,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819684547] [2024-11-12 12:44:27,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819684547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:27,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:27,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:44:27,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118852410] [2024-11-12 12:44:27,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:27,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:44:27,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:27,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:44:27,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:44:27,331 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 91 [2024-11-12 12:44:27,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 89 transitions, 203 flow. Second operand has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 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 12:44:27,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:27,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 91 [2024-11-12 12:44:27,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:27,424 INFO L124 PetriNetUnfolderBase]: 31/245 cut-off events. [2024-11-12 12:44:27,424 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-12 12:44:27,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 245 events. 31/245 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1068 event pairs, 11 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 277. Up to 62 conditions per place. [2024-11-12 12:44:27,427 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 24 selfloop transitions, 5 changer transitions 0/96 dead transitions. [2024-11-12 12:44:27,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 96 transitions, 275 flow [2024-11-12 12:44:27,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:44:27,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:44:27,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 426 transitions. [2024-11-12 12:44:27,432 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7802197802197802 [2024-11-12 12:44:27,434 INFO L175 Difference]: Start difference. First operand has 94 places, 89 transitions, 203 flow. Second operand 6 states and 426 transitions. [2024-11-12 12:44:27,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 96 transitions, 275 flow [2024-11-12 12:44:27,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 96 transitions, 269 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:44:27,436 INFO L231 Difference]: Finished difference. Result has 95 places, 88 transitions, 205 flow [2024-11-12 12:44:27,437 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=205, PETRI_PLACES=95, PETRI_TRANSITIONS=88} [2024-11-12 12:44:27,438 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 5 predicate places. [2024-11-12 12:44:27,439 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 88 transitions, 205 flow [2024-11-12 12:44:27,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 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 12:44:27,440 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:27,440 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] [2024-11-12 12:44:27,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 12:44:27,440 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-12 12:44:27,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:27,441 INFO L85 PathProgramCache]: Analyzing trace with hash -2045412567, now seen corresponding path program 1 times [2024-11-12 12:44:27,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:27,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158281921] [2024-11-12 12:44:27,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:27,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:27,525 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 12:44:27,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:27,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158281921] [2024-11-12 12:44:27,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158281921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:27,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:27,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:44:27,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105558253] [2024-11-12 12:44:27,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:27,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:44:27,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:27,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:44:27,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:44:27,593 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 91 [2024-11-12 12:44:27,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 88 transitions, 205 flow. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 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 12:44:27,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:27,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 91 [2024-11-12 12:44:27,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:27,642 INFO L124 PetriNetUnfolderBase]: 17/232 cut-off events. [2024-11-12 12:44:27,642 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-12 12:44:27,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 232 events. 17/232 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 805 event pairs, 1 based on Foata normal form. 1/219 useless extension candidates. Maximal degree in co-relation 227. Up to 49 conditions per place. [2024-11-12 12:44:27,644 INFO L140 encePairwiseOnDemand]: 83/91 looper letters, 15 selfloop transitions, 2 changer transitions 5/95 dead transitions. [2024-11-12 12:44:27,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 95 transitions, 263 flow [2024-11-12 12:44:27,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:44:27,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:44:27,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 461 transitions. [2024-11-12 12:44:27,647 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8443223443223443 [2024-11-12 12:44:27,647 INFO L175 Difference]: Start difference. First operand has 95 places, 88 transitions, 205 flow. Second operand 6 states and 461 transitions. [2024-11-12 12:44:27,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 95 transitions, 263 flow [2024-11-12 12:44:27,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 95 transitions, 253 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:44:27,649 INFO L231 Difference]: Finished difference. Result has 99 places, 88 transitions, 213 flow [2024-11-12 12:44:27,650 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=213, PETRI_PLACES=99, PETRI_TRANSITIONS=88} [2024-11-12 12:44:27,651 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 9 predicate places. [2024-11-12 12:44:27,651 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 88 transitions, 213 flow [2024-11-12 12:44:27,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 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 12:44:27,652 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:27,652 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, 1, 1, 1, 1, 1, 1] [2024-11-12 12:44:27,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 12:44:27,653 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-12 12:44:27,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:27,653 INFO L85 PathProgramCache]: Analyzing trace with hash 79107010, now seen corresponding path program 1 times [2024-11-12 12:44:27,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:27,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433477878] [2024-11-12 12:44:27,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:27,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:27,691 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 12:44:27,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:27,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433477878] [2024-11-12 12:44:27,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433477878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:27,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:27,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:44:27,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613797179] [2024-11-12 12:44:27,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:27,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:44:27,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:27,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:44:27,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:44:27,703 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 91 [2024-11-12 12:44:27,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 88 transitions, 213 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 12:44:27,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:27,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 91 [2024-11-12 12:44:27,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:27,723 INFO L124 PetriNetUnfolderBase]: 5/169 cut-off events. [2024-11-12 12:44:27,723 INFO L125 PetriNetUnfolderBase]: For 19/32 co-relation queries the response was YES. [2024-11-12 12:44:27,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 169 events. 5/169 cut-off events. For 19/32 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 475 event pairs, 3 based on Foata normal form. 1/160 useless extension candidates. Maximal degree in co-relation 189. Up to 25 conditions per place. [2024-11-12 12:44:27,726 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 8 selfloop transitions, 4 changer transitions 3/91 dead transitions. [2024-11-12 12:44:27,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 91 transitions, 249 flow [2024-11-12 12:44:27,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:44:27,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:44:27,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2024-11-12 12:44:27,727 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9084249084249084 [2024-11-12 12:44:27,727 INFO L175 Difference]: Start difference. First operand has 99 places, 88 transitions, 213 flow. Second operand 3 states and 248 transitions. [2024-11-12 12:44:27,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 91 transitions, 249 flow [2024-11-12 12:44:27,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 91 transitions, 235 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-12 12:44:27,732 INFO L231 Difference]: Finished difference. Result has 95 places, 88 transitions, 221 flow [2024-11-12 12:44:27,732 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=221, PETRI_PLACES=95, PETRI_TRANSITIONS=88} [2024-11-12 12:44:27,733 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 5 predicate places. [2024-11-12 12:44:27,733 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 88 transitions, 221 flow [2024-11-12 12:44:27,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 12:44:27,733 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:27,733 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:44:27,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 12:44:27,733 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-12 12:44:27,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:27,734 INFO L85 PathProgramCache]: Analyzing trace with hash 42510031, now seen corresponding path program 1 times [2024-11-12 12:44:27,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:27,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321368778] [2024-11-12 12:44:27,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:27,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:27,980 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 12:44:27,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:27,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321368778] [2024-11-12 12:44:27,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321368778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:27,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:27,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:44:27,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045287631] [2024-11-12 12:44:27,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:27,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:44:27,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:27,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:44:27,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:44:28,066 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 91 [2024-11-12 12:44:28,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 88 transitions, 221 flow. Second operand has 6 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 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 12:44:28,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:28,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 91 [2024-11-12 12:44:28,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:28,109 INFO L124 PetriNetUnfolderBase]: 25/282 cut-off events. [2024-11-12 12:44:28,109 INFO L125 PetriNetUnfolderBase]: For 48/51 co-relation queries the response was YES. [2024-11-12 12:44:28,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 282 events. 25/282 cut-off events. For 48/51 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1231 event pairs, 15 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 370. Up to 55 conditions per place. [2024-11-12 12:44:28,110 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 12 selfloop transitions, 0 changer transitions 20/95 dead transitions. [2024-11-12 12:44:28,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 95 transitions, 289 flow [2024-11-12 12:44:28,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:44:28,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:44:28,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 436 transitions. [2024-11-12 12:44:28,111 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7985347985347986 [2024-11-12 12:44:28,111 INFO L175 Difference]: Start difference. First operand has 95 places, 88 transitions, 221 flow. Second operand 6 states and 436 transitions. [2024-11-12 12:44:28,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 95 transitions, 289 flow [2024-11-12 12:44:28,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 95 transitions, 281 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:44:28,114 INFO L231 Difference]: Finished difference. Result has 97 places, 75 transitions, 184 flow [2024-11-12 12:44:28,114 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=184, PETRI_PLACES=97, PETRI_TRANSITIONS=75} [2024-11-12 12:44:28,115 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 7 predicate places. [2024-11-12 12:44:28,115 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 75 transitions, 184 flow [2024-11-12 12:44:28,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 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 12:44:28,115 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:28,115 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2024-11-12 12:44:28,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 12:44:28,116 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-12 12:44:28,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:28,116 INFO L85 PathProgramCache]: Analyzing trace with hash -2106051217, now seen corresponding path program 1 times [2024-11-12 12:44:28,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:28,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880543022] [2024-11-12 12:44:28,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:28,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:44:28,131 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:44:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:44:28,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:44:28,155 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:44:28,156 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-11-12 12:44:28,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-11-12 12:44:28,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-11-12 12:44:28,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-11-12 12:44:28,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2024-11-12 12:44:28,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-11-12 12:44:28,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 12:44:28,158 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-12 12:44:28,160 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:44:28,160 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-12 12:44:28,171 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-12 12:44:28,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 109 transitions, 234 flow [2024-11-12 12:44:28,186 INFO L124 PetriNetUnfolderBase]: 11/212 cut-off events. [2024-11-12 12:44:28,186 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-12 12:44:28,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 212 events. 11/212 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 446 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 127. Up to 8 conditions per place. [2024-11-12 12:44:28,186 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 109 transitions, 234 flow [2024-11-12 12:44:28,187 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 109 transitions, 234 flow [2024-11-12 12:44:28,188 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:44:28,189 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;@3a48f8ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:44:28,189 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-12 12:44:28,191 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:44:28,191 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-11-12 12:44:28,191 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:44:28,191 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:28,192 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] [2024-11-12 12:44:28,192 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-12 12:44:28,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:28,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1540354543, now seen corresponding path program 1 times [2024-11-12 12:44:28,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:28,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017018024] [2024-11-12 12:44:28,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:28,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:28,208 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 12:44:28,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:28,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017018024] [2024-11-12 12:44:28,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017018024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:28,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:28,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:44:28,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704006723] [2024-11-12 12:44:28,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:28,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:44:28,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:28,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:44:28,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:44:28,219 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 109 [2024-11-12 12:44:28,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 109 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 12:44:28,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:28,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 109 [2024-11-12 12:44:28,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:28,294 INFO L124 PetriNetUnfolderBase]: 119/731 cut-off events. [2024-11-12 12:44:28,295 INFO L125 PetriNetUnfolderBase]: For 44/68 co-relation queries the response was YES. [2024-11-12 12:44:28,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1003 conditions, 731 events. 119/731 cut-off events. For 44/68 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4271 event pairs, 50 based on Foata normal form. 36/682 useless extension candidates. Maximal degree in co-relation 749. Up to 139 conditions per place. [2024-11-12 12:44:28,298 INFO L140 encePairwiseOnDemand]: 101/109 looper letters, 16 selfloop transitions, 4 changer transitions 1/113 dead transitions. [2024-11-12 12:44:28,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 113 transitions, 282 flow [2024-11-12 12:44:28,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:44:28,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:44:28,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2024-11-12 12:44:28,299 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.926605504587156 [2024-11-12 12:44:28,299 INFO L175 Difference]: Start difference. First operand has 109 places, 109 transitions, 234 flow. Second operand 3 states and 303 transitions. [2024-11-12 12:44:28,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 113 transitions, 282 flow [2024-11-12 12:44:28,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 113 transitions, 282 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:44:28,301 INFO L231 Difference]: Finished difference. Result has 113 places, 108 transitions, 256 flow [2024-11-12 12:44:28,301 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=113, PETRI_TRANSITIONS=108} [2024-11-12 12:44:28,302 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 4 predicate places. [2024-11-12 12:44:28,302 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 108 transitions, 256 flow [2024-11-12 12:44:28,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 12:44:28,302 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:28,303 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] [2024-11-12 12:44:28,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 12:44:28,303 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-12 12:44:28,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:28,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1300220009, now seen corresponding path program 1 times [2024-11-12 12:44:28,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:28,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935143548] [2024-11-12 12:44:28,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:28,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:28,345 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 12:44:28,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:28,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935143548] [2024-11-12 12:44:28,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935143548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:28,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:28,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:44:28,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842312542] [2024-11-12 12:44:28,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:28,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:44:28,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:28,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:44:28,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:44:28,404 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 109 [2024-11-12 12:44:28,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 108 transitions, 256 flow. Second operand has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 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 12:44:28,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:28,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 109 [2024-11-12 12:44:28,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:28,504 INFO L124 PetriNetUnfolderBase]: 189/1195 cut-off events. [2024-11-12 12:44:28,505 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-11-12 12:44:28,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1695 conditions, 1195 events. 189/1195 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 8575 event pairs, 131 based on Foata normal form. 1/1096 useless extension candidates. Maximal degree in co-relation 1094. Up to 314 conditions per place. [2024-11-12 12:44:28,511 INFO L140 encePairwiseOnDemand]: 101/109 looper letters, 20 selfloop transitions, 2 changer transitions 5/116 dead transitions. [2024-11-12 12:44:28,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 116 transitions, 326 flow [2024-11-12 12:44:28,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:44:28,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:44:28,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 550 transitions. [2024-11-12 12:44:28,512 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8409785932721713 [2024-11-12 12:44:28,513 INFO L175 Difference]: Start difference. First operand has 113 places, 108 transitions, 256 flow. Second operand 6 states and 550 transitions. [2024-11-12 12:44:28,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 116 transitions, 326 flow [2024-11-12 12:44:28,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 116 transitions, 318 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:44:28,515 INFO L231 Difference]: Finished difference. Result has 119 places, 109 transitions, 270 flow [2024-11-12 12:44:28,515 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=270, PETRI_PLACES=119, PETRI_TRANSITIONS=109} [2024-11-12 12:44:28,516 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 10 predicate places. [2024-11-12 12:44:28,516 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 109 transitions, 270 flow [2024-11-12 12:44:28,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 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 12:44:28,516 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:28,517 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] [2024-11-12 12:44:28,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 12:44:28,517 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-12 12:44:28,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:28,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1605414830, now seen corresponding path program 1 times [2024-11-12 12:44:28,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:28,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720817156] [2024-11-12 12:44:28,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:28,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:28,692 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 12:44:28,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:28,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720817156] [2024-11-12 12:44:28,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720817156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:28,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:28,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:44:28,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229986506] [2024-11-12 12:44:28,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:28,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:44:28,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:28,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:44:28,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:44:28,764 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 109 [2024-11-12 12:44:28,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 109 transitions, 270 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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 12:44:28,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:28,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 109 [2024-11-12 12:44:28,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:28,894 INFO L124 PetriNetUnfolderBase]: 298/1282 cut-off events. [2024-11-12 12:44:28,895 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2024-11-12 12:44:28,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2084 conditions, 1282 events. 298/1282 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 9634 event pairs, 130 based on Foata normal form. 0/1183 useless extension candidates. Maximal degree in co-relation 959. Up to 371 conditions per place. [2024-11-12 12:44:28,902 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 37 selfloop transitions, 5 changer transitions 0/124 dead transitions. [2024-11-12 12:44:28,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 124 transitions, 384 flow [2024-11-12 12:44:28,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:44:28,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:44:28,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 522 transitions. [2024-11-12 12:44:28,903 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7981651376146789 [2024-11-12 12:44:28,904 INFO L175 Difference]: Start difference. First operand has 119 places, 109 transitions, 270 flow. Second operand 6 states and 522 transitions. [2024-11-12 12:44:28,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 124 transitions, 384 flow [2024-11-12 12:44:28,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 124 transitions, 372 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-12 12:44:28,907 INFO L231 Difference]: Finished difference. Result has 116 places, 108 transitions, 266 flow [2024-11-12 12:44:28,907 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=266, PETRI_PLACES=116, PETRI_TRANSITIONS=108} [2024-11-12 12:44:28,908 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 7 predicate places. [2024-11-12 12:44:28,909 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 108 transitions, 266 flow [2024-11-12 12:44:28,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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 12:44:28,909 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:28,910 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, 1, 1, 1, 1, 1, 1] [2024-11-12 12:44:28,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 12:44:28,910 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-12 12:44:28,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:28,910 INFO L85 PathProgramCache]: Analyzing trace with hash -55830766, now seen corresponding path program 1 times [2024-11-12 12:44:28,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:28,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373943676] [2024-11-12 12:44:28,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:28,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:28,940 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 12:44:28,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:28,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373943676] [2024-11-12 12:44:28,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373943676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:28,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:28,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:44:28,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006102779] [2024-11-12 12:44:28,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:28,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:44:28,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:28,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:44:28,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:44:28,956 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 109 [2024-11-12 12:44:28,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 108 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 12:44:28,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:28,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 109 [2024-11-12 12:44:28,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:29,053 INFO L124 PetriNetUnfolderBase]: 170/1036 cut-off events. [2024-11-12 12:44:29,053 INFO L125 PetriNetUnfolderBase]: For 196/323 co-relation queries the response was YES. [2024-11-12 12:44:29,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1612 conditions, 1036 events. 170/1036 cut-off events. For 196/323 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 7374 event pairs, 74 based on Foata normal form. 4/903 useless extension candidates. Maximal degree in co-relation 670. Up to 268 conditions per place. [2024-11-12 12:44:29,059 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 19 selfloop transitions, 7 changer transitions 0/117 dead transitions. [2024-11-12 12:44:29,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 117 transitions, 350 flow [2024-11-12 12:44:29,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:44:29,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:44:29,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2024-11-12 12:44:29,060 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.908256880733945 [2024-11-12 12:44:29,060 INFO L175 Difference]: Start difference. First operand has 116 places, 108 transitions, 266 flow. Second operand 3 states and 297 transitions. [2024-11-12 12:44:29,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 117 transitions, 350 flow [2024-11-12 12:44:29,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 117 transitions, 340 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:44:29,062 INFO L231 Difference]: Finished difference. Result has 115 places, 113 transitions, 312 flow [2024-11-12 12:44:29,063 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=115, PETRI_TRANSITIONS=113} [2024-11-12 12:44:29,063 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 6 predicate places. [2024-11-12 12:44:29,064 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 113 transitions, 312 flow [2024-11-12 12:44:29,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 12:44:29,064 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:29,064 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:44:29,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 12:44:29,064 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-12 12:44:29,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:29,065 INFO L85 PathProgramCache]: Analyzing trace with hash 2098394380, now seen corresponding path program 1 times [2024-11-12 12:44:29,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:29,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729798140] [2024-11-12 12:44:29,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:29,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:29,223 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 12:44:29,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:29,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729798140] [2024-11-12 12:44:29,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729798140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:29,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:29,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:44:29,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852172684] [2024-11-12 12:44:29,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:29,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:44:29,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:29,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:44:29,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:44:29,318 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 109 [2024-11-12 12:44:29,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 113 transitions, 312 flow. Second operand has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:44:29,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:29,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 109 [2024-11-12 12:44:29,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:29,490 INFO L124 PetriNetUnfolderBase]: 358/1837 cut-off events. [2024-11-12 12:44:29,490 INFO L125 PetriNetUnfolderBase]: For 312/360 co-relation queries the response was YES. [2024-11-12 12:44:29,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3016 conditions, 1837 events. 358/1837 cut-off events. For 312/360 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 15485 event pairs, 179 based on Foata normal form. 4/1681 useless extension candidates. Maximal degree in co-relation 2430. Up to 362 conditions per place. [2024-11-12 12:44:29,499 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 34 selfloop transitions, 5 changer transitions 0/128 dead transitions. [2024-11-12 12:44:29,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 128 transitions, 420 flow [2024-11-12 12:44:29,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:44:29,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:44:29,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 532 transitions. [2024-11-12 12:44:29,501 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8134556574923547 [2024-11-12 12:44:29,501 INFO L175 Difference]: Start difference. First operand has 115 places, 113 transitions, 312 flow. Second operand 6 states and 532 transitions. [2024-11-12 12:44:29,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 128 transitions, 420 flow [2024-11-12 12:44:29,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 128 transitions, 406 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:44:29,504 INFO L231 Difference]: Finished difference. Result has 117 places, 112 transitions, 306 flow [2024-11-12 12:44:29,504 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=306, PETRI_PLACES=117, PETRI_TRANSITIONS=112} [2024-11-12 12:44:29,504 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 8 predicate places. [2024-11-12 12:44:29,504 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 112 transitions, 306 flow [2024-11-12 12:44:29,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:44:29,505 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:29,505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:44:29,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 12:44:29,505 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-12 12:44:29,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:29,506 INFO L85 PathProgramCache]: Analyzing trace with hash -605015293, now seen corresponding path program 1 times [2024-11-12 12:44:29,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:29,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506581687] [2024-11-12 12:44:29,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:29,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:29,567 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 12:44:29,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:29,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506581687] [2024-11-12 12:44:29,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506581687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:29,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:29,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 12:44:29,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253908343] [2024-11-12 12:44:29,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:29,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:44:29,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:29,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:44:29,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:44:29,638 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 109 [2024-11-12 12:44:29,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 112 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 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 12:44:29,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:29,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 109 [2024-11-12 12:44:29,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:29,725 INFO L124 PetriNetUnfolderBase]: 141/1023 cut-off events. [2024-11-12 12:44:29,725 INFO L125 PetriNetUnfolderBase]: For 138/165 co-relation queries the response was YES. [2024-11-12 12:44:29,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1605 conditions, 1023 events. 141/1023 cut-off events. For 138/165 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 7094 event pairs, 43 based on Foata normal form. 15/973 useless extension candidates. Maximal degree in co-relation 974. Up to 189 conditions per place. [2024-11-12 12:44:29,743 INFO L140 encePairwiseOnDemand]: 102/109 looper letters, 23 selfloop transitions, 6 changer transitions 6/125 dead transitions. [2024-11-12 12:44:29,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 125 transitions, 406 flow [2024-11-12 12:44:29,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:44:29,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:44:29,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 552 transitions. [2024-11-12 12:44:29,745 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8440366972477065 [2024-11-12 12:44:29,745 INFO L175 Difference]: Start difference. First operand has 117 places, 112 transitions, 306 flow. Second operand 6 states and 552 transitions. [2024-11-12 12:44:29,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 125 transitions, 406 flow [2024-11-12 12:44:29,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 125 transitions, 394 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:44:29,747 INFO L231 Difference]: Finished difference. Result has 119 places, 112 transitions, 312 flow [2024-11-12 12:44:29,747 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=312, PETRI_PLACES=119, PETRI_TRANSITIONS=112} [2024-11-12 12:44:29,748 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 10 predicate places. [2024-11-12 12:44:29,748 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 112 transitions, 312 flow [2024-11-12 12:44:29,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 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 12:44:29,748 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:29,749 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:44:29,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 12:44:29,749 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-12 12:44:29,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:29,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1309900068, now seen corresponding path program 1 times [2024-11-12 12:44:29,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:29,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840342352] [2024-11-12 12:44:29,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:29,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:29,774 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 12:44:29,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:29,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840342352] [2024-11-12 12:44:29,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840342352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:29,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:29,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:44:29,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377595916] [2024-11-12 12:44:29,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:29,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:44:29,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:29,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:44:29,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:44:29,787 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 109 [2024-11-12 12:44:29,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 112 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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 12:44:29,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:29,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 109 [2024-11-12 12:44:29,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:29,842 INFO L124 PetriNetUnfolderBase]: 56/628 cut-off events. [2024-11-12 12:44:29,842 INFO L125 PetriNetUnfolderBase]: For 215/280 co-relation queries the response was YES. [2024-11-12 12:44:29,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1011 conditions, 628 events. 56/628 cut-off events. For 215/280 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3770 event pairs, 30 based on Foata normal form. 3/608 useless extension candidates. Maximal degree in co-relation 892. Up to 119 conditions per place. [2024-11-12 12:44:29,845 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 19 selfloop transitions, 7 changer transitions 1/119 dead transitions. [2024-11-12 12:44:29,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 119 transitions, 389 flow [2024-11-12 12:44:29,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:44:29,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:44:29,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2024-11-12 12:44:29,846 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9051987767584098 [2024-11-12 12:44:29,846 INFO L175 Difference]: Start difference. First operand has 119 places, 112 transitions, 312 flow. Second operand 3 states and 296 transitions. [2024-11-12 12:44:29,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 119 transitions, 389 flow [2024-11-12 12:44:29,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 119 transitions, 381 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-12 12:44:29,848 INFO L231 Difference]: Finished difference. Result has 120 places, 115 transitions, 354 flow [2024-11-12 12:44:29,848 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=120, PETRI_TRANSITIONS=115} [2024-11-12 12:44:29,849 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 11 predicate places. [2024-11-12 12:44:29,849 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 115 transitions, 354 flow [2024-11-12 12:44:29,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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 12:44:29,849 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:29,850 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2024-11-12 12:44:29,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-12 12:44:29,850 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-12 12:44:29,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:29,850 INFO L85 PathProgramCache]: Analyzing trace with hash -354026671, now seen corresponding path program 1 times [2024-11-12 12:44:29,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:29,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718116076] [2024-11-12 12:44:29,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:29,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:44:29,865 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:44:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:44:29,878 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:44:29,878 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:44:29,878 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-12 12:44:29,878 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-12 12:44:29,878 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-11-12 12:44:29,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-12 12:44:29,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-12 12:44:29,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-12 12:44:29,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-12 12:44:29,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-12 12:44:29,879 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:44:29,880 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:44:29,880 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-12 12:44:29,895 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-12 12:44:29,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 127 transitions, 281 flow [2024-11-12 12:44:29,915 INFO L124 PetriNetUnfolderBase]: 21/350 cut-off events. [2024-11-12 12:44:29,915 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-12 12:44:29,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 350 events. 21/350 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 958 event pairs, 1 based on Foata normal form. 0/302 useless extension candidates. Maximal degree in co-relation 220. Up to 16 conditions per place. [2024-11-12 12:44:29,916 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 127 transitions, 281 flow [2024-11-12 12:44:29,917 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 127 transitions, 281 flow [2024-11-12 12:44:29,918 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:44:29,918 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;@3a48f8ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:44:29,919 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-12 12:44:29,920 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:44:29,921 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-11-12 12:44:29,921 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:44:29,921 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:29,921 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] [2024-11-12 12:44:29,921 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:44:29,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:29,922 INFO L85 PathProgramCache]: Analyzing trace with hash -964600847, now seen corresponding path program 1 times [2024-11-12 12:44:29,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:29,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210918878] [2024-11-12 12:44:29,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:29,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:29,935 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 12:44:29,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:29,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210918878] [2024-11-12 12:44:29,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210918878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:29,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:29,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:44:29,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592974317] [2024-11-12 12:44:29,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:29,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:44:29,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:29,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:44:29,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:44:29,949 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 127 [2024-11-12 12:44:29,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 127 transitions, 281 flow. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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 12:44:29,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:29,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 127 [2024-11-12 12:44:29,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:30,234 INFO L124 PetriNetUnfolderBase]: 1071/4022 cut-off events. [2024-11-12 12:44:30,235 INFO L125 PetriNetUnfolderBase]: For 375/480 co-relation queries the response was YES. [2024-11-12 12:44:30,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5937 conditions, 4022 events. 1071/4022 cut-off events. For 375/480 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 36243 event pairs, 542 based on Foata normal form. 180/3761 useless extension candidates. Maximal degree in co-relation 4652. Up to 1110 conditions per place. [2024-11-12 12:44:30,255 INFO L140 encePairwiseOnDemand]: 118/127 looper letters, 23 selfloop transitions, 5 changer transitions 1/134 dead transitions. [2024-11-12 12:44:30,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 134 transitions, 351 flow [2024-11-12 12:44:30,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:44:30,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:44:30,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2024-11-12 12:44:30,257 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9186351706036745 [2024-11-12 12:44:30,257 INFO L175 Difference]: Start difference. First operand has 128 places, 127 transitions, 281 flow. Second operand 3 states and 350 transitions. [2024-11-12 12:44:30,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 134 transitions, 351 flow [2024-11-12 12:44:30,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 134 transitions, 351 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:44:30,259 INFO L231 Difference]: Finished difference. Result has 132 places, 127 transitions, 311 flow [2024-11-12 12:44:30,259 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=132, PETRI_TRANSITIONS=127} [2024-11-12 12:44:30,260 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 4 predicate places. [2024-11-12 12:44:30,260 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 127 transitions, 311 flow [2024-11-12 12:44:30,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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 12:44:30,260 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:30,260 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] [2024-11-12 12:44:30,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-12 12:44:30,261 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:44:30,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:30,261 INFO L85 PathProgramCache]: Analyzing trace with hash 853939566, now seen corresponding path program 1 times [2024-11-12 12:44:30,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:30,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645381603] [2024-11-12 12:44:30,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:30,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:30,408 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 12:44:30,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:30,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645381603] [2024-11-12 12:44:30,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645381603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:30,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:30,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:44:30,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693017044] [2024-11-12 12:44:30,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:30,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:44:30,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:30,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:44:30,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:44:30,484 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 127 [2024-11-12 12:44:30,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 127 transitions, 311 flow. Second operand has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 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 12:44:30,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:30,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 127 [2024-11-12 12:44:30,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:31,079 INFO L124 PetriNetUnfolderBase]: 1992/6696 cut-off events. [2024-11-12 12:44:31,079 INFO L125 PetriNetUnfolderBase]: For 492/492 co-relation queries the response was YES. [2024-11-12 12:44:31,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10664 conditions, 6696 events. 1992/6696 cut-off events. For 492/492 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 66948 event pairs, 898 based on Foata normal form. 0/6018 useless extension candidates. Maximal degree in co-relation 6902. Up to 2168 conditions per place. [2024-11-12 12:44:31,109 INFO L140 encePairwiseOnDemand]: 121/127 looper letters, 48 selfloop transitions, 5 changer transitions 0/150 dead transitions. [2024-11-12 12:44:31,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 150 transitions, 463 flow [2024-11-12 12:44:31,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:44:31,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:44:31,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 618 transitions. [2024-11-12 12:44:31,111 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8110236220472441 [2024-11-12 12:44:31,111 INFO L175 Difference]: Start difference. First operand has 132 places, 127 transitions, 311 flow. Second operand 6 states and 618 transitions. [2024-11-12 12:44:31,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 150 transitions, 463 flow [2024-11-12 12:44:31,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 150 transitions, 453 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:44:31,116 INFO L231 Difference]: Finished difference. Result has 133 places, 126 transitions, 309 flow [2024-11-12 12:44:31,116 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=309, PETRI_PLACES=133, PETRI_TRANSITIONS=126} [2024-11-12 12:44:31,117 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 5 predicate places. [2024-11-12 12:44:31,117 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 126 transitions, 309 flow [2024-11-12 12:44:31,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 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 12:44:31,117 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:31,117 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] [2024-11-12 12:44:31,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-12 12:44:31,117 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:44:31,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:31,118 INFO L85 PathProgramCache]: Analyzing trace with hash 548744745, now seen corresponding path program 1 times [2024-11-12 12:44:31,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:31,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022726553] [2024-11-12 12:44:31,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:31,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:31,154 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 12:44:31,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:31,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022726553] [2024-11-12 12:44:31,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022726553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:31,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:31,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:44:31,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161173231] [2024-11-12 12:44:31,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:31,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:44:31,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:31,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:44:31,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:44:31,206 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 127 [2024-11-12 12:44:31,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 126 transitions, 309 flow. Second operand has 5 states, 5 states have (on average 102.4) internal successors, (512), 5 states have internal predecessors, (512), 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 12:44:31,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:31,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 127 [2024-11-12 12:44:31,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:31,696 INFO L124 PetriNetUnfolderBase]: 1326/6241 cut-off events. [2024-11-12 12:44:31,700 INFO L125 PetriNetUnfolderBase]: For 229/229 co-relation queries the response was YES. [2024-11-12 12:44:31,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8873 conditions, 6241 events. 1326/6241 cut-off events. For 229/229 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 63418 event pairs, 760 based on Foata normal form. 1/5483 useless extension candidates. Maximal degree in co-relation 3021. Up to 1720 conditions per place. [2024-11-12 12:44:31,722 INFO L140 encePairwiseOnDemand]: 119/127 looper letters, 24 selfloop transitions, 2 changer transitions 5/134 dead transitions. [2024-11-12 12:44:31,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 134 transitions, 387 flow [2024-11-12 12:44:31,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:44:31,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:44:31,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 638 transitions. [2024-11-12 12:44:31,724 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8372703412073491 [2024-11-12 12:44:31,724 INFO L175 Difference]: Start difference. First operand has 133 places, 126 transitions, 309 flow. Second operand 6 states and 638 transitions. [2024-11-12 12:44:31,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 134 transitions, 387 flow [2024-11-12 12:44:31,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 134 transitions, 377 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:44:31,726 INFO L231 Difference]: Finished difference. Result has 137 places, 127 transitions, 321 flow [2024-11-12 12:44:31,726 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=321, PETRI_PLACES=137, PETRI_TRANSITIONS=127} [2024-11-12 12:44:31,727 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 9 predicate places. [2024-11-12 12:44:31,727 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 127 transitions, 321 flow [2024-11-12 12:44:31,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 102.4) internal successors, (512), 5 states have internal predecessors, (512), 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 12:44:31,727 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:31,727 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, 1, 1, 1, 1, 1, 1] [2024-11-12 12:44:31,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-12 12:44:31,727 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:44:31,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:31,728 INFO L85 PathProgramCache]: Analyzing trace with hash -76812734, now seen corresponding path program 1 times [2024-11-12 12:44:31,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:31,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746165476] [2024-11-12 12:44:31,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:31,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:31,746 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 12:44:31,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:31,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746165476] [2024-11-12 12:44:31,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746165476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:31,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:31,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:44:31,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605192535] [2024-11-12 12:44:31,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:31,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:44:31,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:31,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:44:31,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:44:31,761 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 127 [2024-11-12 12:44:31,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 127 transitions, 321 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 12:44:31,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:31,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 127 [2024-11-12 12:44:31,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:32,361 INFO L124 PetriNetUnfolderBase]: 1740/6603 cut-off events. [2024-11-12 12:44:32,362 INFO L125 PetriNetUnfolderBase]: For 1609/2214 co-relation queries the response was YES. [2024-11-12 12:44:32,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11194 conditions, 6603 events. 1740/6603 cut-off events. For 1609/2214 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 68778 event pairs, 967 based on Foata normal form. 10/5862 useless extension candidates. Maximal degree in co-relation 11135. Up to 2240 conditions per place. [2024-11-12 12:44:32,402 INFO L140 encePairwiseOnDemand]: 120/127 looper letters, 29 selfloop transitions, 9 changer transitions 0/142 dead transitions. [2024-11-12 12:44:32,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 142 transitions, 455 flow [2024-11-12 12:44:32,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:44:32,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:44:32,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2024-11-12 12:44:32,403 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9081364829396326 [2024-11-12 12:44:32,403 INFO L175 Difference]: Start difference. First operand has 137 places, 127 transitions, 321 flow. Second operand 3 states and 346 transitions. [2024-11-12 12:44:32,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 142 transitions, 455 flow [2024-11-12 12:44:32,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 142 transitions, 443 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-12 12:44:32,414 INFO L231 Difference]: Finished difference. Result has 134 places, 134 transitions, 385 flow [2024-11-12 12:44:32,414 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=385, PETRI_PLACES=134, PETRI_TRANSITIONS=134} [2024-11-12 12:44:32,414 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 6 predicate places. [2024-11-12 12:44:32,414 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 134 transitions, 385 flow [2024-11-12 12:44:32,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 12:44:32,415 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:32,415 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:44:32,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-12 12:44:32,415 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:44:32,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:32,415 INFO L85 PathProgramCache]: Analyzing trace with hash -736876325, now seen corresponding path program 1 times [2024-11-12 12:44:32,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:32,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866721554] [2024-11-12 12:44:32,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:32,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:32,581 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 12:44:32,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:32,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866721554] [2024-11-12 12:44:32,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866721554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:32,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:32,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:44:32,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403963160] [2024-11-12 12:44:32,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:32,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:44:32,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:32,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:44:32,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:44:32,645 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 127 [2024-11-12 12:44:32,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 134 transitions, 385 flow. Second operand has 6 states, 6 states have (on average 98.16666666666667) internal successors, (589), 6 states have internal predecessors, (589), 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 12:44:32,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:32,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 127 [2024-11-12 12:44:32,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:33,469 INFO L124 PetriNetUnfolderBase]: 2874/10393 cut-off events. [2024-11-12 12:44:33,469 INFO L125 PetriNetUnfolderBase]: For 1726/2295 co-relation queries the response was YES. [2024-11-12 12:44:33,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17543 conditions, 10393 events. 2874/10393 cut-off events. For 1726/2295 co-relation queries the response was YES. Maximal size of possible extension queue 463. Compared 114908 event pairs, 1408 based on Foata normal form. 27/9250 useless extension candidates. Maximal degree in co-relation 13956. Up to 2157 conditions per place. [2024-11-12 12:44:33,519 INFO L140 encePairwiseOnDemand]: 121/127 looper letters, 46 selfloop transitions, 5 changer transitions 0/157 dead transitions. [2024-11-12 12:44:33,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 157 transitions, 533 flow [2024-11-12 12:44:33,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:44:33,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:44:33,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 628 transitions. [2024-11-12 12:44:33,521 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8241469816272966 [2024-11-12 12:44:33,521 INFO L175 Difference]: Start difference. First operand has 134 places, 134 transitions, 385 flow. Second operand 6 states and 628 transitions. [2024-11-12 12:44:33,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 157 transitions, 533 flow [2024-11-12 12:44:33,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 157 transitions, 515 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:44:33,530 INFO L231 Difference]: Finished difference. Result has 136 places, 133 transitions, 375 flow [2024-11-12 12:44:33,530 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=375, PETRI_PLACES=136, PETRI_TRANSITIONS=133} [2024-11-12 12:44:33,531 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 8 predicate places. [2024-11-12 12:44:33,531 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 133 transitions, 375 flow [2024-11-12 12:44:33,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.16666666666667) internal successors, (589), 6 states have internal predecessors, (589), 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 12:44:33,531 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:33,531 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:44:33,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-12 12:44:33,532 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:44:33,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:33,532 INFO L85 PathProgramCache]: Analyzing trace with hash -571759414, now seen corresponding path program 1 times [2024-11-12 12:44:33,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:33,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406057258] [2024-11-12 12:44:33,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:33,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:33,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:33,589 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 12:44:33,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:33,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406057258] [2024-11-12 12:44:33,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406057258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:33,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:33,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 12:44:33,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973981306] [2024-11-12 12:44:33,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:33,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:44:33,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:33,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:44:33,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:44:33,679 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 127 [2024-11-12 12:44:33,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 133 transitions, 375 flow. Second operand has 6 states, 6 states have (on average 102.16666666666667) internal successors, (613), 6 states have internal predecessors, (613), 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 12:44:33,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:33,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 127 [2024-11-12 12:44:33,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:34,097 INFO L124 PetriNetUnfolderBase]: 1307/6235 cut-off events. [2024-11-12 12:44:34,098 INFO L125 PetriNetUnfolderBase]: For 994/1251 co-relation queries the response was YES. [2024-11-12 12:44:34,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10208 conditions, 6235 events. 1307/6235 cut-off events. For 994/1251 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 64504 event pairs, 664 based on Foata normal form. 65/5759 useless extension candidates. Maximal degree in co-relation 5448. Up to 1257 conditions per place. [2024-11-12 12:44:34,156 INFO L140 encePairwiseOnDemand]: 120/127 looper letters, 38 selfloop transitions, 6 changer transitions 0/152 dead transitions. [2024-11-12 12:44:34,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 152 transitions, 512 flow [2024-11-12 12:44:34,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:44:34,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:44:34,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 645 transitions. [2024-11-12 12:44:34,169 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8464566929133859 [2024-11-12 12:44:34,169 INFO L175 Difference]: Start difference. First operand has 136 places, 133 transitions, 375 flow. Second operand 6 states and 645 transitions. [2024-11-12 12:44:34,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 152 transitions, 512 flow [2024-11-12 12:44:34,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 152 transitions, 500 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:44:34,174 INFO L231 Difference]: Finished difference. Result has 138 places, 135 transitions, 391 flow [2024-11-12 12:44:34,174 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=391, PETRI_PLACES=138, PETRI_TRANSITIONS=135} [2024-11-12 12:44:34,175 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 10 predicate places. [2024-11-12 12:44:34,175 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 135 transitions, 391 flow [2024-11-12 12:44:34,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 102.16666666666667) internal successors, (613), 6 states have internal predecessors, (613), 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 12:44:34,175 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:34,175 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:44:34,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-12 12:44:34,176 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:44:34,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:34,177 INFO L85 PathProgramCache]: Analyzing trace with hash 909388675, now seen corresponding path program 1 times [2024-11-12 12:44:34,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:34,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137507036] [2024-11-12 12:44:34,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:34,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:34,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:34,214 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 12:44:34,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:34,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137507036] [2024-11-12 12:44:34,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137507036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:34,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:34,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:44:34,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756724311] [2024-11-12 12:44:34,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:34,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:44:34,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:34,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:44:34,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:44:34,244 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 127 [2024-11-12 12:44:34,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 135 transitions, 391 flow. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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 12:44:34,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:34,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 127 [2024-11-12 12:44:34,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:34,934 INFO L124 PetriNetUnfolderBase]: 1088/4910 cut-off events. [2024-11-12 12:44:34,935 INFO L125 PetriNetUnfolderBase]: For 2468/2707 co-relation queries the response was YES. [2024-11-12 12:44:34,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9012 conditions, 4910 events. 1088/4910 cut-off events. For 2468/2707 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 51455 event pairs, 589 based on Foata normal form. 8/4547 useless extension candidates. Maximal degree in co-relation 8255. Up to 1450 conditions per place. [2024-11-12 12:44:34,960 INFO L140 encePairwiseOnDemand]: 120/127 looper letters, 31 selfloop transitions, 13 changer transitions 0/151 dead transitions. [2024-11-12 12:44:34,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 151 transitions, 552 flow [2024-11-12 12:44:34,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:44:34,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:44:34,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 345 transitions. [2024-11-12 12:44:34,971 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.905511811023622 [2024-11-12 12:44:34,971 INFO L175 Difference]: Start difference. First operand has 138 places, 135 transitions, 391 flow. Second operand 3 states and 345 transitions. [2024-11-12 12:44:34,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 151 transitions, 552 flow [2024-11-12 12:44:34,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 151 transitions, 544 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-12 12:44:34,975 INFO L231 Difference]: Finished difference. Result has 139 places, 144 transitions, 501 flow [2024-11-12 12:44:34,975 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=501, PETRI_PLACES=139, PETRI_TRANSITIONS=144} [2024-11-12 12:44:34,976 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 11 predicate places. [2024-11-12 12:44:34,976 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 144 transitions, 501 flow [2024-11-12 12:44:34,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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 12:44:34,991 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:34,992 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:44:34,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-12 12:44:34,992 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:44:34,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:34,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1498185577, now seen corresponding path program 1 times [2024-11-12 12:44:34,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:34,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316283525] [2024-11-12 12:44:34,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:34,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:35,099 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 12:44:35,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:35,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316283525] [2024-11-12 12:44:35,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316283525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:35,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:35,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:44:35,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455808687] [2024-11-12 12:44:35,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:35,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:44:35,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:35,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:44:35,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:44:35,109 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 127 [2024-11-12 12:44:35,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 144 transitions, 501 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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 12:44:35,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:35,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 127 [2024-11-12 12:44:35,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:35,269 INFO L124 PetriNetUnfolderBase]: 117/1565 cut-off events. [2024-11-12 12:44:35,269 INFO L125 PetriNetUnfolderBase]: For 697/739 co-relation queries the response was YES. [2024-11-12 12:44:35,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2580 conditions, 1565 events. 117/1565 cut-off events. For 697/739 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 12808 event pairs, 43 based on Foata normal form. 21/1532 useless extension candidates. Maximal degree in co-relation 2091. Up to 144 conditions per place. [2024-11-12 12:44:35,277 INFO L140 encePairwiseOnDemand]: 121/127 looper letters, 12 selfloop transitions, 6 changer transitions 0/139 dead transitions. [2024-11-12 12:44:35,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 139 transitions, 474 flow [2024-11-12 12:44:35,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:44:35,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:44:35,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2024-11-12 12:44:35,279 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9291338582677166 [2024-11-12 12:44:35,279 INFO L175 Difference]: Start difference. First operand has 139 places, 144 transitions, 501 flow. Second operand 3 states and 354 transitions. [2024-11-12 12:44:35,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 139 transitions, 474 flow [2024-11-12 12:44:35,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 139 transitions, 460 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-12 12:44:35,283 INFO L231 Difference]: Finished difference. Result has 139 places, 134 transitions, 405 flow [2024-11-12 12:44:35,283 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=405, PETRI_PLACES=139, PETRI_TRANSITIONS=134} [2024-11-12 12:44:35,283 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 11 predicate places. [2024-11-12 12:44:35,283 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 134 transitions, 405 flow [2024-11-12 12:44:35,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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 12:44:35,284 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:35,284 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:44:35,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-12 12:44:35,284 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:44:35,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:35,285 INFO L85 PathProgramCache]: Analyzing trace with hash -347694239, now seen corresponding path program 1 times [2024-11-12 12:44:35,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:35,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061619834] [2024-11-12 12:44:35,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:35,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:35,323 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 12:44:35,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:35,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061619834] [2024-11-12 12:44:35,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061619834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:35,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:35,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:44:35,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969188908] [2024-11-12 12:44:35,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:35,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:44:35,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:35,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:44:35,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:44:35,340 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 127 [2024-11-12 12:44:35,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 134 transitions, 405 flow. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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 12:44:35,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:35,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 127 [2024-11-12 12:44:35,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:35,559 INFO L124 PetriNetUnfolderBase]: 203/1858 cut-off events. [2024-11-12 12:44:35,560 INFO L125 PetriNetUnfolderBase]: For 1335/1400 co-relation queries the response was YES. [2024-11-12 12:44:35,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3433 conditions, 1858 events. 203/1858 cut-off events. For 1335/1400 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 16293 event pairs, 134 based on Foata normal form. 3/1769 useless extension candidates. Maximal degree in co-relation 2878. Up to 435 conditions per place. [2024-11-12 12:44:35,568 INFO L140 encePairwiseOnDemand]: 122/127 looper letters, 25 selfloop transitions, 5 changer transitions 0/139 dead transitions. [2024-11-12 12:44:35,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 139 transitions, 487 flow [2024-11-12 12:44:35,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:44:35,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:44:35,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2024-11-12 12:44:35,570 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8871391076115486 [2024-11-12 12:44:35,573 INFO L175 Difference]: Start difference. First operand has 139 places, 134 transitions, 405 flow. Second operand 3 states and 338 transitions. [2024-11-12 12:44:35,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 139 transitions, 487 flow [2024-11-12 12:44:35,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 139 transitions, 481 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:44:35,583 INFO L231 Difference]: Finished difference. Result has 142 places, 137 transitions, 439 flow [2024-11-12 12:44:35,584 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=439, PETRI_PLACES=142, PETRI_TRANSITIONS=137} [2024-11-12 12:44:35,584 INFO L279 CegarLoopForPetriNet]: 128 programPoint places, 14 predicate places. [2024-11-12 12:44:35,584 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 137 transitions, 439 flow [2024-11-12 12:44:35,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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 12:44:35,585 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:35,585 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 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 12:44:35,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-12 12:44:35,586 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:44:35,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:35,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1089870802, now seen corresponding path program 1 times [2024-11-12 12:44:35,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:35,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651028148] [2024-11-12 12:44:35,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:35,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:44:35,611 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:44:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:44:35,640 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:44:35,641 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:44:35,641 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-12 12:44:35,641 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2024-11-12 12:44:35,641 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2024-11-12 12:44:35,642 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2024-11-12 12:44:35,642 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2024-11-12 12:44:35,642 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2024-11-12 12:44:35,642 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2024-11-12 12:44:35,642 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2024-11-12 12:44:35,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-12 12:44:35,642 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:44:35,643 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:44:35,643 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-12 12:44:35,666 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-12 12:44:35,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 145 transitions, 330 flow [2024-11-12 12:44:35,728 INFO L124 PetriNetUnfolderBase]: 43/592 cut-off events. [2024-11-12 12:44:35,728 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-12 12:44:35,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 592 events. 43/592 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2112 event pairs, 6 based on Foata normal form. 0/508 useless extension candidates. Maximal degree in co-relation 370. Up to 32 conditions per place. [2024-11-12 12:44:35,731 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 145 transitions, 330 flow [2024-11-12 12:44:35,734 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 145 transitions, 330 flow [2024-11-12 12:44:35,735 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:44:35,735 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;@3a48f8ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:44:35,736 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-12 12:44:35,739 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:44:35,739 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-11-12 12:44:35,739 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:44:35,739 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:35,739 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] [2024-11-12 12:44:35,740 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-12 12:44:35,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:35,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1930538991, now seen corresponding path program 1 times [2024-11-12 12:44:35,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:35,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133489605] [2024-11-12 12:44:35,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:35,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:35,759 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 12:44:35,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:35,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133489605] [2024-11-12 12:44:35,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133489605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:35,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:35,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:44:35,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273436838] [2024-11-12 12:44:35,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:35,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:44:35,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:35,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:44:35,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:44:35,775 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 145 [2024-11-12 12:44:35,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 145 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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 12:44:35,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:35,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 145 [2024-11-12 12:44:35,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:37,863 INFO L124 PetriNetUnfolderBase]: 7859/23535 cut-off events. [2024-11-12 12:44:37,864 INFO L125 PetriNetUnfolderBase]: For 2444/2795 co-relation queries the response was YES. [2024-11-12 12:44:37,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35885 conditions, 23535 events. 7859/23535 cut-off events. For 2444/2795 co-relation queries the response was YES. Maximal size of possible extension queue 779. Compared 271409 event pairs, 4292 based on Foata normal form. 871/22186 useless extension candidates. Maximal degree in co-relation 28583. Up to 7653 conditions per place. [2024-11-12 12:44:38,097 INFO L140 encePairwiseOnDemand]: 135/145 looper letters, 30 selfloop transitions, 6 changer transitions 1/155 dead transitions. [2024-11-12 12:44:38,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 155 transitions, 422 flow [2024-11-12 12:44:38,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:44:38,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:44:38,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2024-11-12 12:44:38,099 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9126436781609195 [2024-11-12 12:44:38,100 INFO L175 Difference]: Start difference. First operand has 147 places, 145 transitions, 330 flow. Second operand 3 states and 397 transitions. [2024-11-12 12:44:38,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 155 transitions, 422 flow [2024-11-12 12:44:38,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 155 transitions, 422 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:44:38,103 INFO L231 Difference]: Finished difference. Result has 151 places, 146 transitions, 368 flow [2024-11-12 12:44:38,103 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=151, PETRI_TRANSITIONS=146} [2024-11-12 12:44:38,103 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 4 predicate places. [2024-11-12 12:44:38,103 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 146 transitions, 368 flow [2024-11-12 12:44:38,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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 12:44:38,104 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:38,104 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] [2024-11-12 12:44:38,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-12 12:44:38,104 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-12 12:44:38,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:38,105 INFO L85 PathProgramCache]: Analyzing trace with hash 300323758, now seen corresponding path program 1 times [2024-11-12 12:44:38,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:38,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978395927] [2024-11-12 12:44:38,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:38,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:38,228 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 12:44:38,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:38,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978395927] [2024-11-12 12:44:38,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978395927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:38,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:38,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:44:38,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78047642] [2024-11-12 12:44:38,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:38,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:44:38,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:38,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:44:38,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:44:38,305 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 145 [2024-11-12 12:44:38,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 146 transitions, 368 flow. Second operand has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 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 12:44:38,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:38,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 145 [2024-11-12 12:44:38,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:42,136 INFO L124 PetriNetUnfolderBase]: 13638/36400 cut-off events. [2024-11-12 12:44:42,137 INFO L125 PetriNetUnfolderBase]: For 3211/3211 co-relation queries the response was YES. [2024-11-12 12:44:42,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60528 conditions, 36400 events. 13638/36400 cut-off events. For 3211/3211 co-relation queries the response was YES. Maximal size of possible extension queue 1438. Compared 435337 event pairs, 2826 based on Foata normal form. 0/31775 useless extension candidates. Maximal degree in co-relation 35745. Up to 13302 conditions per place. [2024-11-12 12:44:42,577 INFO L140 encePairwiseOnDemand]: 139/145 looper letters, 60 selfloop transitions, 5 changer transitions 0/177 dead transitions. [2024-11-12 12:44:42,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 177 transitions, 560 flow [2024-11-12 12:44:42,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:44:42,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:44:42,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 714 transitions. [2024-11-12 12:44:42,579 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8206896551724138 [2024-11-12 12:44:42,579 INFO L175 Difference]: Start difference. First operand has 151 places, 146 transitions, 368 flow. Second operand 6 states and 714 transitions. [2024-11-12 12:44:42,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 177 transitions, 560 flow [2024-11-12 12:44:42,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 177 transitions, 548 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:44:42,779 INFO L231 Difference]: Finished difference. Result has 152 places, 145 transitions, 364 flow [2024-11-12 12:44:42,780 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=364, PETRI_PLACES=152, PETRI_TRANSITIONS=145} [2024-11-12 12:44:42,780 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 5 predicate places. [2024-11-12 12:44:42,780 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 145 transitions, 364 flow [2024-11-12 12:44:42,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 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 12:44:42,781 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:42,781 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] [2024-11-12 12:44:42,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-12 12:44:42,781 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-12 12:44:42,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:42,782 INFO L85 PathProgramCache]: Analyzing trace with hash -4871063, now seen corresponding path program 1 times [2024-11-12 12:44:42,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:42,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412826337] [2024-11-12 12:44:42,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:42,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:42,831 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 12:44:42,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:42,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412826337] [2024-11-12 12:44:42,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412826337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:42,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:42,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:44:42,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688414092] [2024-11-12 12:44:42,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:42,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:44:42,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:42,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:44:42,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:44:42,909 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 145 [2024-11-12 12:44:42,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 145 transitions, 364 flow. Second operand has 5 states, 5 states have (on average 116.4) internal successors, (582), 5 states have internal predecessors, (582), 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 12:44:42,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:42,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 145 [2024-11-12 12:44:42,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:46,635 INFO L124 PetriNetUnfolderBase]: 9343/33719 cut-off events. [2024-11-12 12:44:46,635 INFO L125 PetriNetUnfolderBase]: For 1637/1637 co-relation queries the response was YES. [2024-11-12 12:44:46,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49426 conditions, 33719 events. 9343/33719 cut-off events. For 1637/1637 co-relation queries the response was YES. Maximal size of possible extension queue 907. Compared 429793 event pairs, 7523 based on Foata normal form. 1/29645 useless extension candidates. Maximal degree in co-relation 31640. Up to 10778 conditions per place. [2024-11-12 12:44:46,824 INFO L140 encePairwiseOnDemand]: 137/145 looper letters, 28 selfloop transitions, 2 changer transitions 5/153 dead transitions. [2024-11-12 12:44:46,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 153 transitions, 450 flow [2024-11-12 12:44:46,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:44:46,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:44:46,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 726 transitions. [2024-11-12 12:44:46,826 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8344827586206897 [2024-11-12 12:44:46,826 INFO L175 Difference]: Start difference. First operand has 152 places, 145 transitions, 364 flow. Second operand 6 states and 726 transitions. [2024-11-12 12:44:46,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 153 transitions, 450 flow [2024-11-12 12:44:46,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 153 transitions, 440 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:44:46,830 INFO L231 Difference]: Finished difference. Result has 156 places, 146 transitions, 376 flow [2024-11-12 12:44:46,831 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=376, PETRI_PLACES=156, PETRI_TRANSITIONS=146} [2024-11-12 12:44:46,831 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 9 predicate places. [2024-11-12 12:44:46,831 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 146 transitions, 376 flow [2024-11-12 12:44:46,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.4) internal successors, (582), 5 states have internal predecessors, (582), 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 12:44:46,831 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:46,832 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, 1, 1, 1, 1, 1, 1] [2024-11-12 12:44:46,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-12 12:44:46,832 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-12 12:44:46,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:46,832 INFO L85 PathProgramCache]: Analyzing trace with hash 540197122, now seen corresponding path program 1 times [2024-11-12 12:44:46,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:46,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016325506] [2024-11-12 12:44:46,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:46,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:46,854 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 12:44:46,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:46,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016325506] [2024-11-12 12:44:46,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016325506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:46,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:46,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:44:46,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789828292] [2024-11-12 12:44:46,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:46,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:44:46,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:46,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:44:46,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:44:46,873 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 145 [2024-11-12 12:44:46,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 146 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:44:46,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:46,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 145 [2024-11-12 12:44:46,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:51,208 INFO L124 PetriNetUnfolderBase]: 13629/41376 cut-off events. [2024-11-12 12:44:51,209 INFO L125 PetriNetUnfolderBase]: For 10673/13732 co-relation queries the response was YES. [2024-11-12 12:44:51,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72233 conditions, 41376 events. 13629/41376 cut-off events. For 10673/13732 co-relation queries the response was YES. Maximal size of possible extension queue 1513. Compared 530347 event pairs, 7860 based on Foata normal form. 36/36839 useless extension candidates. Maximal degree in co-relation 72173. Up to 15880 conditions per place. [2024-11-12 12:44:51,505 INFO L140 encePairwiseOnDemand]: 137/145 looper letters, 39 selfloop transitions, 11 changer transitions 0/167 dead transitions. [2024-11-12 12:44:51,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 167 transitions, 562 flow [2024-11-12 12:44:51,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:44:51,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:44:51,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2024-11-12 12:44:51,510 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9080459770114943 [2024-11-12 12:44:51,510 INFO L175 Difference]: Start difference. First operand has 156 places, 146 transitions, 376 flow. Second operand 3 states and 395 transitions. [2024-11-12 12:44:51,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 167 transitions, 562 flow [2024-11-12 12:44:51,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 167 transitions, 550 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-12 12:44:51,690 INFO L231 Difference]: Finished difference. Result has 153 places, 155 transitions, 460 flow [2024-11-12 12:44:51,691 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=460, PETRI_PLACES=153, PETRI_TRANSITIONS=155} [2024-11-12 12:44:51,692 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 6 predicate places. [2024-11-12 12:44:51,695 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 155 transitions, 460 flow [2024-11-12 12:44:51,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:44:51,695 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:51,695 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:44:51,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-12 12:44:51,696 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-12 12:44:51,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:51,696 INFO L85 PathProgramCache]: Analyzing trace with hash 126632508, now seen corresponding path program 1 times [2024-11-12 12:44:51,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:51,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981935756] [2024-11-12 12:44:51,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:51,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:51,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:52,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 12:44:52,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:52,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981935756] [2024-11-12 12:44:52,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981935756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:52,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:52,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:44:52,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637391840] [2024-11-12 12:44:52,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:52,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:44:52,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:52,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:44:52,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:44:52,317 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 145 [2024-11-12 12:44:52,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 155 transitions, 460 flow. Second operand has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 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 12:44:52,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:52,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 145 [2024-11-12 12:44:52,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:44:57,144 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([600] L1023-4-->L1023-5: Formula: (= |v_#race~data~0_4| |v_threadThread3of4ForFork0_#t~nondet5_3|) InVars {threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} OutVars{#race~data~0=|v_#race~data~0_4|, threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} AuxVars[] AssignedVars[#race~data~0][152], [120#L1038-1true, 132#L1024true, 172#true, Black: 163#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 174#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 146#true, 177#true, 147#true, Black: 152#(= |#race~data~0| 0), 46#L1022-3true, 58#L1023-5true, 144#true, 142#true]) [2024-11-12 12:44:57,144 INFO L294 olderBase$Statistics]: this new event has 150 ancestors and is cut-off event [2024-11-12 12:44:57,144 INFO L297 olderBase$Statistics]: existing Event has 106 ancestors and is cut-off event [2024-11-12 12:44:57,145 INFO L297 olderBase$Statistics]: existing Event has 150 ancestors and is cut-off event [2024-11-12 12:44:57,145 INFO L297 olderBase$Statistics]: existing Event has 106 ancestors and is cut-off event [2024-11-12 12:44:57,461 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([648] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][184], [120#L1038-1true, 24#L1023-5true, 172#true, 148#true, 100#L1023-6true, Black: 163#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 174#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 146#true, 177#true, 143#true, Black: 152#(= |#race~data~0| 0), 58#L1023-5true, 142#true]) [2024-11-12 12:44:57,462 INFO L294 olderBase$Statistics]: this new event has 154 ancestors and is cut-off event [2024-11-12 12:44:57,462 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is cut-off event [2024-11-12 12:44:57,462 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is cut-off event [2024-11-12 12:44:57,462 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is cut-off event [2024-11-12 12:44:57,514 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([600] L1023-4-->L1023-5: Formula: (= |v_#race~data~0_4| |v_threadThread3of4ForFork0_#t~nondet5_3|) InVars {threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} OutVars{#race~data~0=|v_#race~data~0_4|, threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} AuxVars[] AssignedVars[#race~data~0][152], [120#L1038-1true, 114#L1023-5true, 172#true, Black: 163#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 174#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 146#true, 177#true, 147#true, 21#threadErr0ASSERT_VIOLATIONDATA_RACEtrue, Black: 152#(= |#race~data~0| 0), 58#L1023-5true, 144#true, 142#true]) [2024-11-12 12:44:57,514 INFO L294 olderBase$Statistics]: this new event has 154 ancestors and is cut-off event [2024-11-12 12:44:57,514 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2024-11-12 12:44:57,514 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2024-11-12 12:44:57,514 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is cut-off event [2024-11-12 12:44:57,884 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([648] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][179], [120#L1038-1true, 24#L1023-5true, 132#L1024true, 172#true, 148#true, Black: 163#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 174#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 146#true, 177#true, 143#true, Black: 152#(= |#race~data~0| 0), 58#L1023-5true, 142#true]) [2024-11-12 12:44:57,884 INFO L294 olderBase$Statistics]: this new event has 156 ancestors and is not cut-off event [2024-11-12 12:44:57,885 INFO L297 olderBase$Statistics]: existing Event has 156 ancestors and is not cut-off event [2024-11-12 12:44:57,885 INFO L297 olderBase$Statistics]: existing Event has 156 ancestors and is not cut-off event [2024-11-12 12:44:57,885 INFO L297 olderBase$Statistics]: existing Event has 156 ancestors and is not cut-off event [2024-11-12 12:44:58,529 INFO L124 PetriNetUnfolderBase]: 19999/58031 cut-off events. [2024-11-12 12:44:58,529 INFO L125 PetriNetUnfolderBase]: For 9636/13605 co-relation queries the response was YES. [2024-11-12 12:44:58,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100957 conditions, 58031 events. 19999/58031 cut-off events. For 9636/13605 co-relation queries the response was YES. Maximal size of possible extension queue 1947. Compared 761259 event pairs, 9797 based on Foata normal form. 80/50818 useless extension candidates. Maximal degree in co-relation 79535. Up to 12713 conditions per place. [2024-11-12 12:44:58,973 INFO L140 encePairwiseOnDemand]: 139/145 looper letters, 58 selfloop transitions, 5 changer transitions 0/186 dead transitions. [2024-11-12 12:44:58,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 186 transitions, 648 flow [2024-11-12 12:44:58,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:44:58,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:44:58,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 724 transitions. [2024-11-12 12:44:58,975 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.832183908045977 [2024-11-12 12:44:58,975 INFO L175 Difference]: Start difference. First operand has 153 places, 155 transitions, 460 flow. Second operand 6 states and 724 transitions. [2024-11-12 12:44:58,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 186 transitions, 648 flow [2024-11-12 12:44:59,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 186 transitions, 626 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:44:59,060 INFO L231 Difference]: Finished difference. Result has 155 places, 154 transitions, 446 flow [2024-11-12 12:44:59,060 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=446, PETRI_PLACES=155, PETRI_TRANSITIONS=154} [2024-11-12 12:44:59,060 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 8 predicate places. [2024-11-12 12:44:59,060 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 154 transitions, 446 flow [2024-11-12 12:44:59,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.16666666666667) internal successors, (673), 6 states have internal predecessors, (673), 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 12:44:59,061 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:44:59,061 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:44:59,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-12 12:44:59,061 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-12 12:44:59,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:44:59,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1581356987, now seen corresponding path program 1 times [2024-11-12 12:44:59,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:44:59,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400744506] [2024-11-12 12:44:59,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:44:59,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:44:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:44:59,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 12:44:59,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:44:59,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400744506] [2024-11-12 12:44:59,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400744506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:44:59,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:44:59,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 12:44:59,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565459358] [2024-11-12 12:44:59,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:44:59,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:44:59,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:59,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:44:59,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:44:59,180 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 145 [2024-11-12 12:44:59,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 154 transitions, 446 flow. Second operand has 6 states, 6 states have (on average 116.16666666666667) internal successors, (697), 6 states have internal predecessors, (697), 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 12:44:59,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:44:59,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 145 [2024-11-12 12:44:59,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:45:02,080 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([648] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][175], [120#L1038-1true, 24#L1023-5true, 100#L1023-6true, 148#true, Black: 163#(= |ULTIMATE.start_main_~i~0#1| 0), 187#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), Black: 174#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 146#true, 177#true, 143#true, Black: 152#(= |#race~data~0| 0), 58#L1023-5true, 142#true]) [2024-11-12 12:45:02,081 INFO L294 olderBase$Statistics]: this new event has 154 ancestors and is cut-off event [2024-11-12 12:45:02,081 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is cut-off event [2024-11-12 12:45:02,081 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is cut-off event [2024-11-12 12:45:02,081 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is cut-off event [2024-11-12 12:45:02,807 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([648] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][174], [120#L1038-1true, 24#L1023-5true, 132#L1024true, 148#true, Black: 163#(= |ULTIMATE.start_main_~i~0#1| 0), 187#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 146#true, Black: 174#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 177#true, 143#true, Black: 152#(= |#race~data~0| 0), 58#L1023-5true, 142#true]) [2024-11-12 12:45:02,807 INFO L294 olderBase$Statistics]: this new event has 156 ancestors and is not cut-off event [2024-11-12 12:45:02,807 INFO L297 olderBase$Statistics]: existing Event has 156 ancestors and is not cut-off event [2024-11-12 12:45:02,807 INFO L297 olderBase$Statistics]: existing Event has 156 ancestors and is not cut-off event [2024-11-12 12:45:02,807 INFO L297 olderBase$Statistics]: existing Event has 156 ancestors and is not cut-off event [2024-11-12 12:45:03,158 INFO L124 PetriNetUnfolderBase]: 10063/36474 cut-off events. [2024-11-12 12:45:03,159 INFO L125 PetriNetUnfolderBase]: For 6131/8102 co-relation queries the response was YES. [2024-11-12 12:45:03,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61443 conditions, 36474 events. 10063/36474 cut-off events. For 6131/8102 co-relation queries the response was YES. Maximal size of possible extension queue 1008. Compared 476634 event pairs, 4496 based on Foata normal form. 284/32609 useless extension candidates. Maximal degree in co-relation 31539. Up to 7614 conditions per place. [2024-11-12 12:45:03,456 INFO L140 encePairwiseOnDemand]: 138/145 looper letters, 47 selfloop transitions, 6 changer transitions 0/178 dead transitions. [2024-11-12 12:45:03,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 178 transitions, 614 flow [2024-11-12 12:45:03,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:45:03,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:45:03,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 738 transitions. [2024-11-12 12:45:03,459 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8482758620689655 [2024-11-12 12:45:03,459 INFO L175 Difference]: Start difference. First operand has 155 places, 154 transitions, 446 flow. Second operand 6 states and 738 transitions. [2024-11-12 12:45:03,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 178 transitions, 614 flow [2024-11-12 12:45:03,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 178 transitions, 602 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:45:03,478 INFO L231 Difference]: Finished difference. Result has 157 places, 156 transitions, 462 flow [2024-11-12 12:45:03,479 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=462, PETRI_PLACES=157, PETRI_TRANSITIONS=156} [2024-11-12 12:45:03,479 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 10 predicate places. [2024-11-12 12:45:03,479 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 156 transitions, 462 flow [2024-11-12 12:45:03,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.16666666666667) internal successors, (697), 6 states have internal predecessors, (697), 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 12:45:03,480 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:45:03,480 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:45:03,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-12 12:45:03,480 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-12 12:45:03,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:45:03,481 INFO L85 PathProgramCache]: Analyzing trace with hash -900737980, now seen corresponding path program 1 times [2024-11-12 12:45:03,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:45:03,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871733557] [2024-11-12 12:45:03,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:45:03,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:45:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:45:03,501 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 12:45:03,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:45:03,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871733557] [2024-11-12 12:45:03,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871733557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:45:03,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:45:03,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:45:03,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136977117] [2024-11-12 12:45:03,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:45:03,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:45:03,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:45:03,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:45:03,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:45:03,518 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 145 [2024-11-12 12:45:03,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 156 transitions, 462 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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 12:45:03,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:45:03,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 145 [2024-11-12 12:45:03,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:45:08,673 INFO L124 PetriNetUnfolderBase]: 11741/40880 cut-off events. [2024-11-12 12:45:08,673 INFO L125 PetriNetUnfolderBase]: For 22623/25700 co-relation queries the response was YES. [2024-11-12 12:45:08,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76769 conditions, 40880 events. 11741/40880 cut-off events. For 22623/25700 co-relation queries the response was YES. Maximal size of possible extension queue 1526. Compared 557774 event pairs, 6051 based on Foata normal form. 47/36748 useless extension candidates. Maximal degree in co-relation 29536. Up to 13416 conditions per place. [2024-11-12 12:45:08,993 INFO L140 encePairwiseOnDemand]: 137/145 looper letters, 43 selfloop transitions, 18 changer transitions 0/181 dead transitions. [2024-11-12 12:45:08,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 181 transitions, 707 flow [2024-11-12 12:45:08,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:45:08,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:45:08,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2024-11-12 12:45:08,995 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9057471264367816 [2024-11-12 12:45:08,995 INFO L175 Difference]: Start difference. First operand has 157 places, 156 transitions, 462 flow. Second operand 3 states and 394 transitions. [2024-11-12 12:45:08,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 181 transitions, 707 flow [2024-11-12 12:45:09,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 181 transitions, 699 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-12 12:45:09,006 INFO L231 Difference]: Finished difference. Result has 158 places, 170 transitions, 632 flow [2024-11-12 12:45:09,006 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=632, PETRI_PLACES=158, PETRI_TRANSITIONS=170} [2024-11-12 12:45:09,006 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 11 predicate places. [2024-11-12 12:45:09,007 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 170 transitions, 632 flow [2024-11-12 12:45:09,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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 12:45:09,007 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:45:09,007 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:45:09,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-12 12:45:09,007 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-12 12:45:09,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:45:09,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1920329912, now seen corresponding path program 1 times [2024-11-12 12:45:09,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:45:09,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183904189] [2024-11-12 12:45:09,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:45:09,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:45:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:45:09,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 12:45:09,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:45:09,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183904189] [2024-11-12 12:45:09,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183904189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:45:09,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:45:09,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:45:09,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615564305] [2024-11-12 12:45:09,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:45:09,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:45:09,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:45:09,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:45:09,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:45:09,055 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 145 [2024-11-12 12:45:09,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 170 transitions, 632 flow. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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 12:45:09,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:45:09,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 145 [2024-11-12 12:45:09,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:45:09,992 INFO L124 PetriNetUnfolderBase]: 688/6745 cut-off events. [2024-11-12 12:45:09,992 INFO L125 PetriNetUnfolderBase]: For 3177/3615 co-relation queries the response was YES. [2024-11-12 12:45:10,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11139 conditions, 6745 events. 688/6745 cut-off events. For 3177/3615 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 77454 event pairs, 149 based on Foata normal form. 177/6537 useless extension candidates. Maximal degree in co-relation 4490. Up to 662 conditions per place. [2024-11-12 12:45:10,031 INFO L140 encePairwiseOnDemand]: 137/145 looper letters, 16 selfloop transitions, 8 changer transitions 0/160 dead transitions. [2024-11-12 12:45:10,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 160 transitions, 565 flow [2024-11-12 12:45:10,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:45:10,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:45:10,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 403 transitions. [2024-11-12 12:45:10,033 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9264367816091954 [2024-11-12 12:45:10,033 INFO L175 Difference]: Start difference. First operand has 158 places, 170 transitions, 632 flow. Second operand 3 states and 403 transitions. [2024-11-12 12:45:10,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 160 transitions, 565 flow [2024-11-12 12:45:10,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 160 transitions, 551 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-12 12:45:10,041 INFO L231 Difference]: Finished difference. Result has 158 places, 153 transitions, 472 flow [2024-11-12 12:45:10,042 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=472, PETRI_PLACES=158, PETRI_TRANSITIONS=153} [2024-11-12 12:45:10,043 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 11 predicate places. [2024-11-12 12:45:10,043 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 153 transitions, 472 flow [2024-11-12 12:45:10,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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 12:45:10,043 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:45:10,043 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:45:10,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-12 12:45:10,044 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-12 12:45:10,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:45:10,044 INFO L85 PathProgramCache]: Analyzing trace with hash -2046835631, now seen corresponding path program 1 times [2024-11-12 12:45:10,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:45:10,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796750745] [2024-11-12 12:45:10,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:45:10,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:45:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:45:10,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-12 12:45:10,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:45:10,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796750745] [2024-11-12 12:45:10,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796750745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:45:10,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:45:10,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:45:10,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281659242] [2024-11-12 12:45:10,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:45:10,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:45:10,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:45:10,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:45:10,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:45:10,118 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 145 [2024-11-12 12:45:10,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 153 transitions, 472 flow. Second operand has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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 12:45:10,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:45:10,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 145 [2024-11-12 12:45:10,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:45:11,292 INFO L124 PetriNetUnfolderBase]: 1120/7987 cut-off events. [2024-11-12 12:45:11,292 INFO L125 PetriNetUnfolderBase]: For 6522/6641 co-relation queries the response was YES. [2024-11-12 12:45:11,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15239 conditions, 7987 events. 1120/7987 cut-off events. For 6522/6641 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 95972 event pairs, 661 based on Foata normal form. 4/7477 useless extension candidates. Maximal degree in co-relation 11999. Up to 2068 conditions per place. [2024-11-12 12:45:11,328 INFO L140 encePairwiseOnDemand]: 140/145 looper letters, 33 selfloop transitions, 5 changer transitions 0/160 dead transitions. [2024-11-12 12:45:11,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 160 transitions, 586 flow [2024-11-12 12:45:11,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:45:11,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:45:11,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2024-11-12 12:45:11,330 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8827586206896552 [2024-11-12 12:45:11,330 INFO L175 Difference]: Start difference. First operand has 158 places, 153 transitions, 472 flow. Second operand 3 states and 384 transitions. [2024-11-12 12:45:11,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 160 transitions, 586 flow [2024-11-12 12:45:11,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 160 transitions, 578 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:45:11,335 INFO L231 Difference]: Finished difference. Result has 161 places, 156 transitions, 504 flow [2024-11-12 12:45:11,336 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=504, PETRI_PLACES=161, PETRI_TRANSITIONS=156} [2024-11-12 12:45:11,336 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 14 predicate places. [2024-11-12 12:45:11,336 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 156 transitions, 504 flow [2024-11-12 12:45:11,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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 12:45:11,337 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:45:11,337 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:45:11,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-12 12:45:11,337 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-12 12:45:11,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:45:11,338 INFO L85 PathProgramCache]: Analyzing trace with hash 535690515, now seen corresponding path program 1 times [2024-11-12 12:45:11,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:45:11,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212550715] [2024-11-12 12:45:11,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:45:11,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:45:11,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:45:11,410 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-12 12:45:11,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:45:11,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212550715] [2024-11-12 12:45:11,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212550715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:45:11,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:45:11,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:45:11,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771198495] [2024-11-12 12:45:11,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:45:11,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:45:11,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:45:11,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:45:11,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:45:11,434 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 145 [2024-11-12 12:45:11,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 156 transitions, 504 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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 12:45:11,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:45:11,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 145 [2024-11-12 12:45:11,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:45:12,368 INFO L124 PetriNetUnfolderBase]: 1121/8023 cut-off events. [2024-11-12 12:45:12,369 INFO L125 PetriNetUnfolderBase]: For 8714/8866 co-relation queries the response was YES. [2024-11-12 12:45:12,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15946 conditions, 8023 events. 1121/8023 cut-off events. For 8714/8866 co-relation queries the response was YES. Maximal size of possible extension queue 355. Compared 96772 event pairs, 707 based on Foata normal form. 4/7570 useless extension candidates. Maximal degree in co-relation 12796. Up to 2095 conditions per place. [2024-11-12 12:45:12,413 INFO L140 encePairwiseOnDemand]: 140/145 looper letters, 33 selfloop transitions, 5 changer transitions 0/162 dead transitions. [2024-11-12 12:45:12,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 162 transitions, 609 flow [2024-11-12 12:45:12,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:45:12,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:45:12,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2024-11-12 12:45:12,415 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8804597701149425 [2024-11-12 12:45:12,415 INFO L175 Difference]: Start difference. First operand has 161 places, 156 transitions, 504 flow. Second operand 3 states and 383 transitions. [2024-11-12 12:45:12,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 162 transitions, 609 flow [2024-11-12 12:45:12,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 162 transitions, 595 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-12 12:45:12,423 INFO L231 Difference]: Finished difference. Result has 163 places, 159 transitions, 532 flow [2024-11-12 12:45:12,424 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=532, PETRI_PLACES=163, PETRI_TRANSITIONS=159} [2024-11-12 12:45:12,424 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 16 predicate places. [2024-11-12 12:45:12,424 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 159 transitions, 532 flow [2024-11-12 12:45:12,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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 12:45:12,425 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:45:12,425 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:45:12,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-12 12:45:12,425 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-12 12:45:12,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:45:12,426 INFO L85 PathProgramCache]: Analyzing trace with hash -382993810, now seen corresponding path program 1 times [2024-11-12 12:45:12,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:45:12,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524914047] [2024-11-12 12:45:12,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:45:12,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:45:12,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:45:12,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-12 12:45:12,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:45:12,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524914047] [2024-11-12 12:45:12,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524914047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:45:12,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:45:12,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 12:45:12,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555236112] [2024-11-12 12:45:12,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:45:12,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 12:45:12,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:45:12,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 12:45:12,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-12 12:45:12,819 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 145 [2024-11-12 12:45:12,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 159 transitions, 532 flow. Second operand has 9 states, 9 states have (on average 111.88888888888889) internal successors, (1007), 9 states have internal predecessors, (1007), 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 12:45:12,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:45:12,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 145 [2024-11-12 12:45:12,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:45:13,856 INFO L124 PetriNetUnfolderBase]: 2202/9523 cut-off events. [2024-11-12 12:45:13,856 INFO L125 PetriNetUnfolderBase]: For 4861/5006 co-relation queries the response was YES. [2024-11-12 12:45:13,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18105 conditions, 9523 events. 2202/9523 cut-off events. For 4861/5006 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 99177 event pairs, 429 based on Foata normal form. 110/9413 useless extension candidates. Maximal degree in co-relation 8701. Up to 1508 conditions per place. [2024-11-12 12:45:13,912 INFO L140 encePairwiseOnDemand]: 131/145 looper letters, 82 selfloop transitions, 15 changer transitions 21/241 dead transitions. [2024-11-12 12:45:13,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 241 transitions, 1017 flow [2024-11-12 12:45:13,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-12 12:45:13,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-12 12:45:13,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1536 transitions. [2024-11-12 12:45:13,915 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8148541114058355 [2024-11-12 12:45:13,915 INFO L175 Difference]: Start difference. First operand has 163 places, 159 transitions, 532 flow. Second operand 13 states and 1536 transitions. [2024-11-12 12:45:13,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 241 transitions, 1017 flow [2024-11-12 12:45:13,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 241 transitions, 1001 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-12 12:45:13,925 INFO L231 Difference]: Finished difference. Result has 182 places, 166 transitions, 608 flow [2024-11-12 12:45:13,926 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=608, PETRI_PLACES=182, PETRI_TRANSITIONS=166} [2024-11-12 12:45:13,926 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 35 predicate places. [2024-11-12 12:45:13,926 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 166 transitions, 608 flow [2024-11-12 12:45:13,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 111.88888888888889) internal successors, (1007), 9 states have internal predecessors, (1007), 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 12:45:13,927 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:45:13,927 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 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 12:45:13,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-12 12:45:13,927 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-12 12:45:13,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:45:13,928 INFO L85 PathProgramCache]: Analyzing trace with hash -508767168, now seen corresponding path program 1 times [2024-11-12 12:45:13,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:45:13,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263628327] [2024-11-12 12:45:13,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:45:13,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:45:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:45:13,946 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:45:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:45:13,964 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:45:13,964 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:45:13,964 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-12 12:45:13,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-12 12:45:13,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-12 12:45:13,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-12 12:45:13,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-12 12:45:13,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-12 12:45:13,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-12 12:45:13,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-12 12:45:13,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-12 12:45:13,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-12 12:45:13,965 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:45:13,966 WARN L244 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:45:13,966 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-12 12:45:13,982 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-11-12 12:45:13,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 166 places, 163 transitions, 381 flow [2024-11-12 12:45:14,058 INFO L124 PetriNetUnfolderBase]: 93/1046 cut-off events. [2024-11-12 12:45:14,059 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2024-11-12 12:45:14,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1152 conditions, 1046 events. 93/1046 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4924 event pairs, 23 based on Foata normal form. 0/894 useless extension candidates. Maximal degree in co-relation 637. Up to 80 conditions per place. [2024-11-12 12:45:14,063 INFO L82 GeneralOperation]: Start removeDead. Operand has 166 places, 163 transitions, 381 flow [2024-11-12 12:45:14,065 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 166 places, 163 transitions, 381 flow [2024-11-12 12:45:14,066 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:45:14,067 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;@3a48f8ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:45:14,067 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-12 12:45:14,068 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:45:14,068 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-11-12 12:45:14,069 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:45:14,069 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:45:14,069 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] [2024-11-12 12:45:14,069 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-12 12:45:14,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:45:14,069 INFO L85 PathProgramCache]: Analyzing trace with hash -143201679, now seen corresponding path program 1 times [2024-11-12 12:45:14,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:45:14,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134124032] [2024-11-12 12:45:14,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:45:14,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:45:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:45:14,082 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 12:45:14,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:45:14,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134124032] [2024-11-12 12:45:14,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134124032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:45:14,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:45:14,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:45:14,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173680624] [2024-11-12 12:45:14,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:45:14,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:45:14,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:45:14,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:45:14,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:45:14,099 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 163 [2024-11-12 12:45:14,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 163 transitions, 381 flow. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 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 12:45:14,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:45:14,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 163 [2024-11-12 12:45:14,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand