./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue.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 4d771c5dc4ab027f123135a7de4324b9be0c6bae288f44d0eaffc15d1836bd60 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:23:53,988 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:23:54,065 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:23:54,069 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:23:54,069 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:23:54,085 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:23:54,087 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:23:54,087 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:23:54,088 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:23:54,089 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:23:54,089 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:23:54,090 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:23:54,091 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:23:54,091 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:23:54,092 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:23:54,093 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:23:54,093 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:23:54,093 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:23:54,093 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:23:54,093 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:23:54,095 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:23:54,096 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:23:54,097 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:23:54,097 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:23:54,097 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:23:54,097 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:23:54,097 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:23:54,097 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:23:54,098 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:23:54,098 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:23:54,098 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:23:54,098 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:23:54,098 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:23:54,098 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:23:54,098 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:23:54,098 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:23:54,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:23:54,099 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:23:54,099 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:23:54,099 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:23:54,099 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:23:54,101 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d771c5dc4ab027f123135a7de4324b9be0c6bae288f44d0eaffc15d1836bd60 [2024-11-20 13:23:54,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:23:54,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:23:54,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:23:54,337 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:23:54,338 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:23:54,339 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue.i [2024-11-20 13:23:55,785 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:23:56,042 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:23:56,042 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue.i [2024-11-20 13:23:56,055 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cfeeb3ef/6d8179c8d1aa4ce1a12c83bb64fa7f7d/FLAG585e58eb2 [2024-11-20 13:23:56,066 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cfeeb3ef/6d8179c8d1aa4ce1a12c83bb64fa7f7d [2024-11-20 13:23:56,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:23:56,069 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:23:56,071 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:23:56,071 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:23:56,075 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:23:56,075 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:23:56" (1/1) ... [2024-11-20 13:23:56,076 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e8ed2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:23:56, skipping insertion in model container [2024-11-20 13:23:56,076 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:23:56" (1/1) ... [2024-11-20 13:23:56,124 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:23:56,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:23:56,525 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:23:56,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:23:56,649 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:23:56,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:23:56 WrapperNode [2024-11-20 13:23:56,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:23:56,651 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:23:56,651 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:23:56,651 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:23:56,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:23:56" (1/1) ... [2024-11-20 13:23:56,684 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:23:56" (1/1) ... [2024-11-20 13:23:56,730 INFO L138 Inliner]: procedures = 274, calls = 107, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 524 [2024-11-20 13:23:56,731 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:23:56,731 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:23:56,731 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:23:56,731 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:23:56,739 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:23:56" (1/1) ... [2024-11-20 13:23:56,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:23:56" (1/1) ... [2024-11-20 13:23:56,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:23:56" (1/1) ... [2024-11-20 13:23:56,754 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:23:56" (1/1) ... [2024-11-20 13:23:56,778 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:23:56" (1/1) ... [2024-11-20 13:23:56,781 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:23:56" (1/1) ... [2024-11-20 13:23:56,784 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:23:56" (1/1) ... [2024-11-20 13:23:56,786 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:23:56" (1/1) ... [2024-11-20 13:23:56,789 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:23:56,790 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:23:56,790 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:23:56,790 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:23:56,791 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:23:56" (1/1) ... [2024-11-20 13:23:56,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:23:56,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:23:56,819 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) [2024-11-20 13:23:56,825 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 [2024-11-20 13:23:56,863 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-11-20 13:23:56,863 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-11-20 13:23:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-11-20 13:23:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-11-20 13:23:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 13:23:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 13:23:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-20 13:23:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 13:23:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:23:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:23:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:23:56,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:23:56,866 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:23:56,985 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:23:56,987 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:23:57,543 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:23:57,544 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:23:57,568 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:23:57,568 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 13:23:57,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:23:57 BoogieIcfgContainer [2024-11-20 13:23:57,569 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:23:57,570 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:23:57,570 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:23:57,573 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:23:57,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:23:56" (1/3) ... [2024-11-20 13:23:57,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440d44d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:23:57, skipping insertion in model container [2024-11-20 13:23:57,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:23:56" (2/3) ... [2024-11-20 13:23:57,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440d44d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:23:57, skipping insertion in model container [2024-11-20 13:23:57,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:23:57" (3/3) ... [2024-11-20 13:23:57,575 INFO L112 eAbstractionObserver]: Analyzing ICFG queue.i [2024-11-20 13:23:57,587 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:23:57,587 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-11-20 13:23:57,587 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:23:57,702 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-20 13:23:57,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 583 places, 594 transitions, 1202 flow [2024-11-20 13:23:57,966 INFO L124 PetriNetUnfolderBase]: 18/592 cut-off events. [2024-11-20 13:23:57,966 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 13:23:57,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 601 conditions, 592 events. 18/592 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 730 event pairs, 0 based on Foata normal form. 0/532 useless extension candidates. Maximal degree in co-relation 452. Up to 2 conditions per place. [2024-11-20 13:23:57,982 INFO L82 GeneralOperation]: Start removeDead. Operand has 583 places, 594 transitions, 1202 flow [2024-11-20 13:23:57,993 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 570 places, 579 transitions, 1167 flow [2024-11-20 13:23:58,008 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:23:58,015 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;@62014c3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:23:58,015 INFO L334 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2024-11-20 13:23:58,024 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:23:58,024 INFO L124 PetriNetUnfolderBase]: 0/77 cut-off events. [2024-11-20 13:23:58,024 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:23:58,025 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:23:58,025 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:23:58,026 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-11-20 13:23:58,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:23:58,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1355596423, now seen corresponding path program 1 times [2024-11-20 13:23:58,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:23:58,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931581983] [2024-11-20 13:23:58,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:23:58,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:23:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:23:58,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:23:58,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:23:58,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931581983] [2024-11-20 13:23:58,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931581983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:23:58,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:23:58,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:23:58,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440958062] [2024-11-20 13:23:58,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:23:58,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:23:58,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:23:58,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:23:58,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:23:58,390 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 562 out of 594 [2024-11-20 13:23:58,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 570 places, 579 transitions, 1167 flow. Second operand has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 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) [2024-11-20 13:23:58,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:23:58,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 562 of 594 [2024-11-20 13:23:58,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:23:58,735 INFO L124 PetriNetUnfolderBase]: 61/1686 cut-off events. [2024-11-20 13:23:58,735 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-20 13:23:58,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1781 conditions, 1686 events. 61/1686 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 7614 event pairs, 27 based on Foata normal form. 37/1546 useless extension candidates. Maximal degree in co-relation 1595. Up to 70 conditions per place. [2024-11-20 13:23:58,750 INFO L140 encePairwiseOnDemand]: 585/594 looper letters, 15 selfloop transitions, 2 changer transitions 0/568 dead transitions. [2024-11-20 13:23:58,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 568 transitions, 1179 flow [2024-11-20 13:23:58,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:23:58,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:23:58,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1710 transitions. [2024-11-20 13:23:58,769 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9595959595959596 [2024-11-20 13:23:58,771 INFO L175 Difference]: Start difference. First operand has 570 places, 579 transitions, 1167 flow. Second operand 3 states and 1710 transitions. [2024-11-20 13:23:58,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 568 transitions, 1179 flow [2024-11-20 13:23:58,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 568 transitions, 1174 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 13:23:58,786 INFO L231 Difference]: Finished difference. Result has 564 places, 568 transitions, 1144 flow [2024-11-20 13:23:58,790 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=1140, PETRI_DIFFERENCE_MINUEND_PLACES=562, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=568, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1144, PETRI_PLACES=564, PETRI_TRANSITIONS=568} [2024-11-20 13:23:58,792 INFO L277 CegarLoopForPetriNet]: 570 programPoint places, -6 predicate places. [2024-11-20 13:23:58,793 INFO L471 AbstractCegarLoop]: Abstraction has has 564 places, 568 transitions, 1144 flow [2024-11-20 13:23:58,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 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) [2024-11-20 13:23:58,794 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:23:58,794 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:23:58,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:23:58,795 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-11-20 13:23:58,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:23:58,796 INFO L85 PathProgramCache]: Analyzing trace with hash 122017214, now seen corresponding path program 1 times [2024-11-20 13:23:58,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:23:58,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441092956] [2024-11-20 13:23:58,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:23:58,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:23:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:23:58,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:23:58,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:23:58,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441092956] [2024-11-20 13:23:58,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441092956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:23:58,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:23:58,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:23:58,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240929863] [2024-11-20 13:23:58,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:23:58,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:23:58,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:23:58,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:23:58,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:23:58,910 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 562 out of 594 [2024-11-20 13:23:58,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 568 transitions, 1144 flow. Second operand has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 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) [2024-11-20 13:23:58,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:23:58,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 562 of 594 [2024-11-20 13:23:58,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:23:59,273 INFO L124 PetriNetUnfolderBase]: 69/1960 cut-off events. [2024-11-20 13:23:59,273 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-20 13:23:59,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2053 conditions, 1960 events. 69/1960 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 9636 event pairs, 29 based on Foata normal form. 0/1755 useless extension candidates. Maximal degree in co-relation 1968. Up to 74 conditions per place. [2024-11-20 13:23:59,304 INFO L140 encePairwiseOnDemand]: 591/594 looper letters, 15 selfloop transitions, 2 changer transitions 0/567 dead transitions. [2024-11-20 13:23:59,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 565 places, 567 transitions, 1176 flow [2024-11-20 13:23:59,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:23:59,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:23:59,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1704 transitions. [2024-11-20 13:23:59,307 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9562289562289562 [2024-11-20 13:23:59,307 INFO L175 Difference]: Start difference. First operand has 564 places, 568 transitions, 1144 flow. Second operand 3 states and 1704 transitions. [2024-11-20 13:23:59,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 565 places, 567 transitions, 1176 flow [2024-11-20 13:23:59,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 567 transitions, 1172 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:23:59,324 INFO L231 Difference]: Finished difference. Result has 563 places, 567 transitions, 1142 flow [2024-11-20 13:23:59,325 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=1138, PETRI_DIFFERENCE_MINUEND_PLACES=561, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=567, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1142, PETRI_PLACES=563, PETRI_TRANSITIONS=567} [2024-11-20 13:23:59,329 INFO L277 CegarLoopForPetriNet]: 570 programPoint places, -7 predicate places. [2024-11-20 13:23:59,329 INFO L471 AbstractCegarLoop]: Abstraction has has 563 places, 567 transitions, 1142 flow [2024-11-20 13:23:59,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 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) [2024-11-20 13:23:59,330 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:23:59,330 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:23:59,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 13:23:59,330 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-11-20 13:23:59,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:23:59,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1198836137, now seen corresponding path program 1 times [2024-11-20 13:23:59,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:23:59,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360081667] [2024-11-20 13:23:59,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:23:59,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:23:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:23:59,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:23:59,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:23:59,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360081667] [2024-11-20 13:23:59,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360081667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:23:59,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:23:59,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:23:59,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905068002] [2024-11-20 13:23:59,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:23:59,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:23:59,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:23:59,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:23:59,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:00,495 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 594 [2024-11-20 13:24:00,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 567 transitions, 1142 flow. Second operand has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 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) [2024-11-20 13:24:00,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:00,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 594 [2024-11-20 13:24:00,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:02,907 INFO L124 PetriNetUnfolderBase]: 3671/15096 cut-off events. [2024-11-20 13:24:02,908 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-20 13:24:02,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22144 conditions, 15096 events. 3671/15096 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 137006 event pairs, 3314 based on Foata normal form. 0/13635 useless extension candidates. Maximal degree in co-relation 22055. Up to 6868 conditions per place. [2024-11-20 13:24:02,994 INFO L140 encePairwiseOnDemand]: 588/594 looper letters, 138 selfloop transitions, 5 changer transitions 0/566 dead transitions. [2024-11-20 13:24:02,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 566 transitions, 1426 flow [2024-11-20 13:24:02,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:02,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:02,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2766 transitions. [2024-11-20 13:24:02,999 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7760942760942761 [2024-11-20 13:24:02,999 INFO L175 Difference]: Start difference. First operand has 563 places, 567 transitions, 1142 flow. Second operand 6 states and 2766 transitions. [2024-11-20 13:24:02,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 566 transitions, 1426 flow [2024-11-20 13:24:03,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 566 transitions, 1422 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:24:03,006 INFO L231 Difference]: Finished difference. Result has 565 places, 566 transitions, 1146 flow [2024-11-20 13:24:03,009 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=560, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=561, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1146, PETRI_PLACES=565, PETRI_TRANSITIONS=566} [2024-11-20 13:24:03,009 INFO L277 CegarLoopForPetriNet]: 570 programPoint places, -5 predicate places. [2024-11-20 13:24:03,010 INFO L471 AbstractCegarLoop]: Abstraction has has 565 places, 566 transitions, 1146 flow [2024-11-20 13:24:03,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 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) [2024-11-20 13:24:03,012 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:03,012 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:03,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 13:24:03,012 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-11-20 13:24:03,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:03,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1210846249, now seen corresponding path program 1 times [2024-11-20 13:24:03,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:03,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812644141] [2024-11-20 13:24:03,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:03,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:03,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:03,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:03,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:03,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812644141] [2024-11-20 13:24:03,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812644141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:03,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:03,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:03,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053209721] [2024-11-20 13:24:03,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:03,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:03,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:03,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:03,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:04,210 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 594 [2024-11-20 13:24:04,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 565 places, 566 transitions, 1146 flow. Second operand has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 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) [2024-11-20 13:24:04,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:04,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 594 [2024-11-20 13:24:04,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:06,468 INFO L124 PetriNetUnfolderBase]: 3671/15095 cut-off events. [2024-11-20 13:24:06,468 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-20 13:24:06,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22146 conditions, 15095 events. 3671/15095 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 136776 event pairs, 3314 based on Foata normal form. 0/13635 useless extension candidates. Maximal degree in co-relation 22041. Up to 6868 conditions per place. [2024-11-20 13:24:06,549 INFO L140 encePairwiseOnDemand]: 588/594 looper letters, 138 selfloop transitions, 5 changer transitions 0/565 dead transitions. [2024-11-20 13:24:06,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 569 places, 565 transitions, 1430 flow [2024-11-20 13:24:06,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:06,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:06,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2766 transitions. [2024-11-20 13:24:06,555 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7760942760942761 [2024-11-20 13:24:06,555 INFO L175 Difference]: Start difference. First operand has 565 places, 566 transitions, 1146 flow. Second operand 6 states and 2766 transitions. [2024-11-20 13:24:06,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 569 places, 565 transitions, 1430 flow [2024-11-20 13:24:06,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 565 transitions, 1420 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:24:06,564 INFO L231 Difference]: Finished difference. Result has 564 places, 565 transitions, 1144 flow [2024-11-20 13:24:06,565 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=1134, PETRI_DIFFERENCE_MINUEND_PLACES=559, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=565, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=560, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1144, PETRI_PLACES=564, PETRI_TRANSITIONS=565} [2024-11-20 13:24:06,566 INFO L277 CegarLoopForPetriNet]: 570 programPoint places, -6 predicate places. [2024-11-20 13:24:06,567 INFO L471 AbstractCegarLoop]: Abstraction has has 564 places, 565 transitions, 1144 flow [2024-11-20 13:24:06,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 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) [2024-11-20 13:24:06,568 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:06,569 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:06,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 13:24:06,570 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-11-20 13:24:06,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:06,571 INFO L85 PathProgramCache]: Analyzing trace with hash 371736531, now seen corresponding path program 1 times [2024-11-20 13:24:06,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:06,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937690128] [2024-11-20 13:24:06,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:06,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:06,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:06,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:06,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937690128] [2024-11-20 13:24:06,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937690128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:06,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:06,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:06,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580392522] [2024-11-20 13:24:06,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:06,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:06,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:06,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:06,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:07,490 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 594 [2024-11-20 13:24:07,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 565 transitions, 1144 flow. Second operand has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 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) [2024-11-20 13:24:07,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:07,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 594 [2024-11-20 13:24:07,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:09,512 INFO L124 PetriNetUnfolderBase]: 3671/15094 cut-off events. [2024-11-20 13:24:09,512 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-20 13:24:09,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22145 conditions, 15094 events. 3671/15094 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 137077 event pairs, 3314 based on Foata normal form. 0/13635 useless extension candidates. Maximal degree in co-relation 22032. Up to 6868 conditions per place. [2024-11-20 13:24:09,569 INFO L140 encePairwiseOnDemand]: 588/594 looper letters, 138 selfloop transitions, 5 changer transitions 0/564 dead transitions. [2024-11-20 13:24:09,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 564 transitions, 1428 flow [2024-11-20 13:24:09,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:09,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:09,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2766 transitions. [2024-11-20 13:24:09,574 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7760942760942761 [2024-11-20 13:24:09,574 INFO L175 Difference]: Start difference. First operand has 564 places, 565 transitions, 1144 flow. Second operand 6 states and 2766 transitions. [2024-11-20 13:24:09,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 568 places, 564 transitions, 1428 flow [2024-11-20 13:24:09,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 564 transitions, 1418 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:24:09,581 INFO L231 Difference]: Finished difference. Result has 563 places, 564 transitions, 1142 flow [2024-11-20 13:24:09,582 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=1132, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=564, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=559, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1142, PETRI_PLACES=563, PETRI_TRANSITIONS=564} [2024-11-20 13:24:09,583 INFO L277 CegarLoopForPetriNet]: 570 programPoint places, -7 predicate places. [2024-11-20 13:24:09,583 INFO L471 AbstractCegarLoop]: Abstraction has has 563 places, 564 transitions, 1142 flow [2024-11-20 13:24:09,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 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) [2024-11-20 13:24:09,584 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:09,585 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:09,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 13:24:09,585 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-11-20 13:24:09,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:09,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1532074322, now seen corresponding path program 1 times [2024-11-20 13:24:09,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:09,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931948573] [2024-11-20 13:24:09,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:09,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:10,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:10,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:10,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931948573] [2024-11-20 13:24:10,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931948573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:10,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:10,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:10,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901471448] [2024-11-20 13:24:10,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:10,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:10,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:10,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:10,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:10,918 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 499 out of 594 [2024-11-20 13:24:10,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 564 transitions, 1142 flow. Second operand has 6 states, 6 states have (on average 502.1666666666667) internal successors, (3013), 6 states have internal predecessors, (3013), 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) [2024-11-20 13:24:10,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:10,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 499 of 594 [2024-11-20 13:24:10,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:11,536 INFO L124 PetriNetUnfolderBase]: 831/5612 cut-off events. [2024-11-20 13:24:11,537 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-20 13:24:11,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7190 conditions, 5612 events. 831/5612 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 45274 event pairs, 674 based on Foata normal form. 0/5003 useless extension candidates. Maximal degree in co-relation 7059. Up to 1475 conditions per place. [2024-11-20 13:24:11,556 INFO L140 encePairwiseOnDemand]: 588/594 looper letters, 76 selfloop transitions, 5 changer transitions 0/563 dead transitions. [2024-11-20 13:24:11,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 563 transitions, 1302 flow [2024-11-20 13:24:11,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:11,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:11,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3076 transitions. [2024-11-20 13:24:11,560 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8630751964085297 [2024-11-20 13:24:11,560 INFO L175 Difference]: Start difference. First operand has 563 places, 564 transitions, 1142 flow. Second operand 6 states and 3076 transitions. [2024-11-20 13:24:11,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 563 transitions, 1302 flow [2024-11-20 13:24:11,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 562 places, 563 transitions, 1292 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:24:11,566 INFO L231 Difference]: Finished difference. Result has 562 places, 563 transitions, 1140 flow [2024-11-20 13:24:11,567 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=1130, PETRI_DIFFERENCE_MINUEND_PLACES=557, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=563, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1140, PETRI_PLACES=562, PETRI_TRANSITIONS=563} [2024-11-20 13:24:11,567 INFO L277 CegarLoopForPetriNet]: 570 programPoint places, -8 predicate places. [2024-11-20 13:24:11,568 INFO L471 AbstractCegarLoop]: Abstraction has has 562 places, 563 transitions, 1140 flow [2024-11-20 13:24:11,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 502.1666666666667) internal successors, (3013), 6 states have internal predecessors, (3013), 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) [2024-11-20 13:24:11,569 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:11,569 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:11,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 13:24:11,569 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-11-20 13:24:11,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:11,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1211099242, now seen corresponding path program 1 times [2024-11-20 13:24:11,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:11,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88556541] [2024-11-20 13:24:11,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:11,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:11,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:11,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:11,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88556541] [2024-11-20 13:24:11,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88556541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:11,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:11,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:11,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184593247] [2024-11-20 13:24:11,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:11,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:11,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:11,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:11,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:12,702 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 499 out of 594 [2024-11-20 13:24:12,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 562 places, 563 transitions, 1140 flow. Second operand has 6 states, 6 states have (on average 502.1666666666667) internal successors, (3013), 6 states have internal predecessors, (3013), 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) [2024-11-20 13:24:12,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:12,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 499 of 594 [2024-11-20 13:24:12,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:13,502 INFO L124 PetriNetUnfolderBase]: 831/5611 cut-off events. [2024-11-20 13:24:13,503 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-20 13:24:13,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7189 conditions, 5611 events. 831/5611 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 45232 event pairs, 674 based on Foata normal form. 0/5003 useless extension candidates. Maximal degree in co-relation 7020. Up to 1475 conditions per place. [2024-11-20 13:24:13,523 INFO L140 encePairwiseOnDemand]: 588/594 looper letters, 76 selfloop transitions, 5 changer transitions 0/562 dead transitions. [2024-11-20 13:24:13,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 562 transitions, 1300 flow [2024-11-20 13:24:13,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:13,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:13,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3076 transitions. [2024-11-20 13:24:13,529 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8630751964085297 [2024-11-20 13:24:13,529 INFO L175 Difference]: Start difference. First operand has 562 places, 563 transitions, 1140 flow. Second operand 6 states and 3076 transitions. [2024-11-20 13:24:13,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 562 transitions, 1300 flow [2024-11-20 13:24:13,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 562 transitions, 1290 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:24:13,536 INFO L231 Difference]: Finished difference. Result has 561 places, 562 transitions, 1138 flow [2024-11-20 13:24:13,537 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=1128, PETRI_DIFFERENCE_MINUEND_PLACES=556, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=557, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1138, PETRI_PLACES=561, PETRI_TRANSITIONS=562} [2024-11-20 13:24:13,537 INFO L277 CegarLoopForPetriNet]: 570 programPoint places, -9 predicate places. [2024-11-20 13:24:13,538 INFO L471 AbstractCegarLoop]: Abstraction has has 561 places, 562 transitions, 1138 flow [2024-11-20 13:24:13,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 502.1666666666667) internal successors, (3013), 6 states have internal predecessors, (3013), 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) [2024-11-20 13:24:13,539 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:13,540 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:13,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 13:24:13,540 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-11-20 13:24:13,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:13,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1132999633, now seen corresponding path program 1 times [2024-11-20 13:24:13,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:13,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132787447] [2024-11-20 13:24:13,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:13,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:13,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:13,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:13,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132787447] [2024-11-20 13:24:13,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132787447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:13,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:13,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:24:13,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050242272] [2024-11-20 13:24:13,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:13,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:24:13,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:13,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:24:13,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:24:13,670 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 594 [2024-11-20 13:24:13,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 562 transitions, 1138 flow. Second operand has 3 states, 3 states have (on average 568.0) internal successors, (1704), 3 states have internal predecessors, (1704), 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) [2024-11-20 13:24:13,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:13,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 594 [2024-11-20 13:24:13,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:13,956 INFO L124 PetriNetUnfolderBase]: 114/2678 cut-off events. [2024-11-20 13:24:13,956 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-20 13:24:13,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2845 conditions, 2678 events. 114/2678 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 13979 event pairs, 25 based on Foata normal form. 0/2382 useless extension candidates. Maximal degree in co-relation 2695. Up to 88 conditions per place. [2024-11-20 13:24:13,976 INFO L140 encePairwiseOnDemand]: 589/594 looper letters, 22 selfloop transitions, 4 changer transitions 0/573 dead transitions. [2024-11-20 13:24:13,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 573 transitions, 1213 flow [2024-11-20 13:24:13,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:24:13,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:24:13,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1725 transitions. [2024-11-20 13:24:13,979 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.968013468013468 [2024-11-20 13:24:13,979 INFO L175 Difference]: Start difference. First operand has 561 places, 562 transitions, 1138 flow. Second operand 3 states and 1725 transitions. [2024-11-20 13:24:13,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 573 transitions, 1213 flow [2024-11-20 13:24:13,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 558 places, 573 transitions, 1203 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:24:13,993 INFO L231 Difference]: Finished difference. Result has 560 places, 566 transitions, 1162 flow [2024-11-20 13:24:13,997 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=1128, PETRI_DIFFERENCE_MINUEND_PLACES=556, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1162, PETRI_PLACES=560, PETRI_TRANSITIONS=566} [2024-11-20 13:24:13,997 INFO L277 CegarLoopForPetriNet]: 570 programPoint places, -10 predicate places. [2024-11-20 13:24:13,998 INFO L471 AbstractCegarLoop]: Abstraction has has 560 places, 566 transitions, 1162 flow [2024-11-20 13:24:13,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 568.0) internal successors, (1704), 3 states have internal predecessors, (1704), 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) [2024-11-20 13:24:14,000 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:14,000 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:14,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 13:24:14,001 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-11-20 13:24:14,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:14,001 INFO L85 PathProgramCache]: Analyzing trace with hash 874055077, now seen corresponding path program 1 times [2024-11-20 13:24:14,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:14,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112667961] [2024-11-20 13:24:14,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:14,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:14,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:14,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:14,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112667961] [2024-11-20 13:24:14,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112667961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:14,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:14,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:14,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613473957] [2024-11-20 13:24:14,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:14,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:14,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:14,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:14,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:15,570 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 594 [2024-11-20 13:24:15,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 566 transitions, 1162 flow. Second operand has 6 states, 6 states have (on average 473.5) internal successors, (2841), 6 states have internal predecessors, (2841), 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) [2024-11-20 13:24:15,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:15,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 594 [2024-11-20 13:24:15,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:18,269 INFO L124 PetriNetUnfolderBase]: 3091/15503 cut-off events. [2024-11-20 13:24:18,269 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2024-11-20 13:24:18,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21715 conditions, 15503 events. 3091/15503 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 143721 event pairs, 1173 based on Foata normal form. 0/13921 useless extension candidates. Maximal degree in co-relation 20891. Up to 4480 conditions per place. [2024-11-20 13:24:18,418 INFO L140 encePairwiseOnDemand]: 540/594 looper letters, 125 selfloop transitions, 84 changer transitions 0/664 dead transitions. [2024-11-20 13:24:18,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 565 places, 664 transitions, 1784 flow [2024-11-20 13:24:18,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:18,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:18,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3035 transitions. [2024-11-20 13:24:18,430 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8515712682379349 [2024-11-20 13:24:18,430 INFO L175 Difference]: Start difference. First operand has 560 places, 566 transitions, 1162 flow. Second operand 6 states and 3035 transitions. [2024-11-20 13:24:18,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 565 places, 664 transitions, 1784 flow [2024-11-20 13:24:18,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 664 transitions, 1776 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:24:18,452 INFO L231 Difference]: Finished difference. Result has 568 places, 646 transitions, 1750 flow [2024-11-20 13:24:18,455 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=1154, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=518, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1750, PETRI_PLACES=568, PETRI_TRANSITIONS=646} [2024-11-20 13:24:18,457 INFO L277 CegarLoopForPetriNet]: 570 programPoint places, -2 predicate places. [2024-11-20 13:24:18,458 INFO L471 AbstractCegarLoop]: Abstraction has has 568 places, 646 transitions, 1750 flow [2024-11-20 13:24:18,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 473.5) internal successors, (2841), 6 states have internal predecessors, (2841), 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) [2024-11-20 13:24:18,463 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:18,463 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:18,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 13:24:18,464 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-11-20 13:24:18,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:18,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1889372709, now seen corresponding path program 1 times [2024-11-20 13:24:18,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:18,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980992237] [2024-11-20 13:24:18,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:18,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:18,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:18,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:18,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980992237] [2024-11-20 13:24:18,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980992237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:18,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:18,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:24:18,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844752721] [2024-11-20 13:24:18,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:18,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:24:18,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:18,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:24:18,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:24:18,858 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 567 out of 594 [2024-11-20 13:24:18,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 646 transitions, 1750 flow. Second operand has 3 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 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) [2024-11-20 13:24:18,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:18,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 567 of 594 [2024-11-20 13:24:18,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:20,318 INFO L124 PetriNetUnfolderBase]: 991/8750 cut-off events. [2024-11-20 13:24:20,318 INFO L125 PetriNetUnfolderBase]: For 621/633 co-relation queries the response was YES. [2024-11-20 13:24:20,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12490 conditions, 8750 events. 991/8750 cut-off events. For 621/633 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 73819 event pairs, 110 based on Foata normal form. 24/7986 useless extension candidates. Maximal degree in co-relation 11810. Up to 966 conditions per place. [2024-11-20 13:24:20,393 INFO L140 encePairwiseOnDemand]: 590/594 looper letters, 18 selfloop transitions, 3 changer transitions 0/634 dead transitions. [2024-11-20 13:24:20,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 634 transitions, 1719 flow [2024-11-20 13:24:20,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:24:20,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:24:20,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1723 transitions. [2024-11-20 13:24:20,399 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9668911335578002 [2024-11-20 13:24:20,399 INFO L175 Difference]: Start difference. First operand has 568 places, 646 transitions, 1750 flow. Second operand 3 states and 1723 transitions. [2024-11-20 13:24:20,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 634 transitions, 1719 flow [2024-11-20 13:24:20,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 567 places, 634 transitions, 1705 flow, removed 7 selfloop flow, removed 0 redundant places. [2024-11-20 13:24:20,437 INFO L231 Difference]: Finished difference. Result has 568 places, 628 transitions, 1661 flow [2024-11-20 13:24:20,438 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=1646, PETRI_DIFFERENCE_MINUEND_PLACES=565, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=627, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=624, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1661, PETRI_PLACES=568, PETRI_TRANSITIONS=628} [2024-11-20 13:24:20,440 INFO L277 CegarLoopForPetriNet]: 570 programPoint places, -2 predicate places. [2024-11-20 13:24:20,440 INFO L471 AbstractCegarLoop]: Abstraction has has 568 places, 628 transitions, 1661 flow [2024-11-20 13:24:20,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 569.0) internal successors, (1707), 3 states have internal predecessors, (1707), 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) [2024-11-20 13:24:20,445 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:20,445 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:20,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 13:24:20,446 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-11-20 13:24:20,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:20,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1136856423, now seen corresponding path program 1 times [2024-11-20 13:24:20,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:20,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268298271] [2024-11-20 13:24:20,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:20,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:20,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:20,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:20,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:20,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268298271] [2024-11-20 13:24:20,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268298271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:20,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:20,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:20,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355456328] [2024-11-20 13:24:20,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:20,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:20,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:20,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:20,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:21,437 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 594 [2024-11-20 13:24:21,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 628 transitions, 1661 flow. Second operand has 6 states, 6 states have (on average 423.8333333333333) internal successors, (2543), 6 states have internal predecessors, (2543), 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) [2024-11-20 13:24:21,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:21,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 594 [2024-11-20 13:24:21,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:25,951 INFO L124 PetriNetUnfolderBase]: 6038/22406 cut-off events. [2024-11-20 13:24:25,951 INFO L125 PetriNetUnfolderBase]: For 4253/4484 co-relation queries the response was YES. [2024-11-20 13:24:26,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40984 conditions, 22406 events. 6038/22406 cut-off events. For 4253/4484 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 221691 event pairs, 3626 based on Foata normal form. 30/20391 useless extension candidates. Maximal degree in co-relation 39596. Up to 11092 conditions per place. [2024-11-20 13:24:26,126 INFO L140 encePairwiseOnDemand]: 545/594 looper letters, 228 selfloop transitions, 156 changer transitions 0/788 dead transitions. [2024-11-20 13:24:26,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 572 places, 788 transitions, 2853 flow [2024-11-20 13:24:26,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:26,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:26,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2833 transitions. [2024-11-20 13:24:26,132 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7948933782267116 [2024-11-20 13:24:26,132 INFO L175 Difference]: Start difference. First operand has 568 places, 628 transitions, 1661 flow. Second operand 6 states and 2833 transitions. [2024-11-20 13:24:26,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 572 places, 788 transitions, 2853 flow [2024-11-20 13:24:26,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 571 places, 788 transitions, 2850 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:24:26,156 INFO L231 Difference]: Finished difference. Result has 576 places, 776 transitions, 2758 flow [2024-11-20 13:24:26,156 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=1656, PETRI_DIFFERENCE_MINUEND_PLACES=566, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=627, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=579, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2758, PETRI_PLACES=576, PETRI_TRANSITIONS=776} [2024-11-20 13:24:26,157 INFO L277 CegarLoopForPetriNet]: 570 programPoint places, 6 predicate places. [2024-11-20 13:24:26,157 INFO L471 AbstractCegarLoop]: Abstraction has has 576 places, 776 transitions, 2758 flow [2024-11-20 13:24:26,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 423.8333333333333) internal successors, (2543), 6 states have internal predecessors, (2543), 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) [2024-11-20 13:24:26,159 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:26,159 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:26,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 13:24:26,160 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-11-20 13:24:26,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:26,160 INFO L85 PathProgramCache]: Analyzing trace with hash -597056866, now seen corresponding path program 1 times [2024-11-20 13:24:26,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:26,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285822133] [2024-11-20 13:24:26,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:26,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:26,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:26,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:26,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285822133] [2024-11-20 13:24:26,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285822133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:26,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:26,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:26,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053957450] [2024-11-20 13:24:26,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:26,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:26,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:26,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:26,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:27,644 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 504 out of 594 [2024-11-20 13:24:27,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 576 places, 776 transitions, 2758 flow. Second operand has 6 states, 6 states have (on average 508.1666666666667) internal successors, (3049), 6 states have internal predecessors, (3049), 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) [2024-11-20 13:24:27,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:27,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 504 of 594 [2024-11-20 13:24:27,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:30,537 INFO L124 PetriNetUnfolderBase]: 2816/14526 cut-off events. [2024-11-20 13:24:30,537 INFO L125 PetriNetUnfolderBase]: For 4635/5316 co-relation queries the response was YES. [2024-11-20 13:24:30,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27626 conditions, 14526 events. 2816/14526 cut-off events. For 4635/5316 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 139759 event pairs, 749 based on Foata normal form. 51/13285 useless extension candidates. Maximal degree in co-relation 26599. Up to 3595 conditions per place. [2024-11-20 13:24:30,650 INFO L140 encePairwiseOnDemand]: 569/594 looper letters, 182 selfloop transitions, 59 changer transitions 0/840 dead transitions. [2024-11-20 13:24:30,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 580 places, 840 transitions, 3568 flow [2024-11-20 13:24:30,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:30,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:30,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3167 transitions. [2024-11-20 13:24:30,657 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8886083052749719 [2024-11-20 13:24:30,657 INFO L175 Difference]: Start difference. First operand has 576 places, 776 transitions, 2758 flow. Second operand 6 states and 3167 transitions. [2024-11-20 13:24:30,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 580 places, 840 transitions, 3568 flow [2024-11-20 13:24:30,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 580 places, 840 transitions, 3472 flow, removed 48 selfloop flow, removed 0 redundant places. [2024-11-20 13:24:30,687 INFO L231 Difference]: Finished difference. Result has 585 places, 828 transitions, 3230 flow [2024-11-20 13:24:30,688 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=2660, PETRI_DIFFERENCE_MINUEND_PLACES=575, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=775, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=752, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3230, PETRI_PLACES=585, PETRI_TRANSITIONS=828} [2024-11-20 13:24:30,689 INFO L277 CegarLoopForPetriNet]: 570 programPoint places, 15 predicate places. [2024-11-20 13:24:30,690 INFO L471 AbstractCegarLoop]: Abstraction has has 585 places, 828 transitions, 3230 flow [2024-11-20 13:24:30,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 508.1666666666667) internal successors, (3049), 6 states have internal predecessors, (3049), 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) [2024-11-20 13:24:30,691 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:30,691 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:30,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 13:24:30,692 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-11-20 13:24:30,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:30,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1793207773, now seen corresponding path program 1 times [2024-11-20 13:24:30,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:30,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108003204] [2024-11-20 13:24:30,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:30,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:31,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:31,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:31,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108003204] [2024-11-20 13:24:31,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108003204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:31,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:31,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:31,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47400848] [2024-11-20 13:24:31,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:31,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:31,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:31,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:31,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:31,664 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 594 [2024-11-20 13:24:31,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 585 places, 828 transitions, 3230 flow. Second operand has 6 states, 6 states have (on average 466.5) internal successors, (2799), 6 states have internal predecessors, (2799), 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) [2024-11-20 13:24:31,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:31,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 594 [2024-11-20 13:24:31,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:35,124 INFO L124 PetriNetUnfolderBase]: 4710/19221 cut-off events. [2024-11-20 13:24:35,124 INFO L125 PetriNetUnfolderBase]: For 8508/8842 co-relation queries the response was YES. [2024-11-20 13:24:35,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41220 conditions, 19221 events. 4710/19221 cut-off events. For 8508/8842 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 188815 event pairs, 1581 based on Foata normal form. 59/17632 useless extension candidates. Maximal degree in co-relation 40081. Up to 7811 conditions per place. [2024-11-20 13:24:35,291 INFO L140 encePairwiseOnDemand]: 545/594 looper letters, 374 selfloop transitions, 156 changer transitions 0/988 dead transitions. [2024-11-20 13:24:35,291 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 589 places, 988 transitions, 5098 flow [2024-11-20 13:24:35,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:35,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:35,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3043 transitions. [2024-11-20 13:24:35,296 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8538159371492705 [2024-11-20 13:24:35,296 INFO L175 Difference]: Start difference. First operand has 585 places, 828 transitions, 3230 flow. Second operand 6 states and 3043 transitions. [2024-11-20 13:24:35,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 589 places, 988 transitions, 5098 flow [2024-11-20 13:24:35,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 589 places, 988 transitions, 5002 flow, removed 48 selfloop flow, removed 0 redundant places. [2024-11-20 13:24:35,331 INFO L231 Difference]: Finished difference. Result has 594 places, 976 transitions, 4618 flow [2024-11-20 13:24:35,332 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=3132, PETRI_DIFFERENCE_MINUEND_PLACES=584, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=827, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=779, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4618, PETRI_PLACES=594, PETRI_TRANSITIONS=976} [2024-11-20 13:24:35,332 INFO L277 CegarLoopForPetriNet]: 570 programPoint places, 24 predicate places. [2024-11-20 13:24:35,333 INFO L471 AbstractCegarLoop]: Abstraction has has 594 places, 976 transitions, 4618 flow [2024-11-20 13:24:35,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 466.5) internal successors, (2799), 6 states have internal predecessors, (2799), 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) [2024-11-20 13:24:35,334 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:35,334 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:35,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 13:24:35,334 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-11-20 13:24:35,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:35,335 INFO L85 PathProgramCache]: Analyzing trace with hash -973842670, now seen corresponding path program 1 times [2024-11-20 13:24:35,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:35,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727733423] [2024-11-20 13:24:35,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:35,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:35,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:35,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:35,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727733423] [2024-11-20 13:24:35,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727733423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:35,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:35,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:35,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476051255] [2024-11-20 13:24:35,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:35,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:35,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:35,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:35,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:36,260 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 594 [2024-11-20 13:24:36,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 594 places, 976 transitions, 4618 flow. Second operand has 6 states, 6 states have (on average 437.3333333333333) internal successors, (2624), 6 states have internal predecessors, (2624), 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) [2024-11-20 13:24:36,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:36,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 594 [2024-11-20 13:24:36,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:41,940 INFO L124 PetriNetUnfolderBase]: 7085/25823 cut-off events. [2024-11-20 13:24:41,941 INFO L125 PetriNetUnfolderBase]: For 19099/19517 co-relation queries the response was YES. [2024-11-20 13:24:42,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63028 conditions, 25823 events. 7085/25823 cut-off events. For 19099/19517 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 262106 event pairs, 2895 based on Foata normal form. 58/23776 useless extension candidates. Maximal degree in co-relation 61630. Up to 11984 conditions per place. [2024-11-20 13:24:42,165 INFO L140 encePairwiseOnDemand]: 545/594 looper letters, 558 selfloop transitions, 156 changer transitions 0/1136 dead transitions. [2024-11-20 13:24:42,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 598 places, 1136 transitions, 7142 flow [2024-11-20 13:24:42,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:42,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:42,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2893 transitions. [2024-11-20 13:24:42,173 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8117283950617284 [2024-11-20 13:24:42,177 INFO L175 Difference]: Start difference. First operand has 594 places, 976 transitions, 4618 flow. Second operand 6 states and 2893 transitions. [2024-11-20 13:24:42,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 598 places, 1136 transitions, 7142 flow [2024-11-20 13:24:42,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 598 places, 1136 transitions, 6662 flow, removed 240 selfloop flow, removed 0 redundant places. [2024-11-20 13:24:42,242 INFO L231 Difference]: Finished difference. Result has 603 places, 1124 transitions, 5910 flow [2024-11-20 13:24:42,243 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=4136, PETRI_DIFFERENCE_MINUEND_PLACES=593, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=975, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=927, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5910, PETRI_PLACES=603, PETRI_TRANSITIONS=1124} [2024-11-20 13:24:42,244 INFO L277 CegarLoopForPetriNet]: 570 programPoint places, 33 predicate places. [2024-11-20 13:24:42,244 INFO L471 AbstractCegarLoop]: Abstraction has has 603 places, 1124 transitions, 5910 flow [2024-11-20 13:24:42,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 437.3333333333333) internal successors, (2624), 6 states have internal predecessors, (2624), 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) [2024-11-20 13:24:42,245 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:42,245 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:42,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 13:24:42,245 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-11-20 13:24:42,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:42,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1120169001, now seen corresponding path program 1 times [2024-11-20 13:24:42,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:42,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37961145] [2024-11-20 13:24:42,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:42,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:42,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:42,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:42,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37961145] [2024-11-20 13:24:42,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37961145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:42,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:42,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:42,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659918496] [2024-11-20 13:24:42,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:42,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:42,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:42,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:42,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:43,281 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 594 [2024-11-20 13:24:43,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 603 places, 1124 transitions, 5910 flow. Second operand has 6 states, 6 states have (on average 438.1666666666667) internal successors, (2629), 6 states have internal predecessors, (2629), 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) [2024-11-20 13:24:43,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:43,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 594 [2024-11-20 13:24:43,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:49,625 INFO L124 PetriNetUnfolderBase]: 7511/26884 cut-off events. [2024-11-20 13:24:49,626 INFO L125 PetriNetUnfolderBase]: For 28826/29332 co-relation queries the response was YES. [2024-11-20 13:24:49,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72169 conditions, 26884 events. 7511/26884 cut-off events. For 28826/29332 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 273271 event pairs, 2522 based on Foata normal form. 60/24829 useless extension candidates. Maximal degree in co-relation 70749. Up to 12642 conditions per place. [2024-11-20 13:24:49,959 INFO L140 encePairwiseOnDemand]: 545/594 looper letters, 706 selfloop transitions, 156 changer transitions 0/1284 dead transitions. [2024-11-20 13:24:49,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 607 places, 1284 transitions, 9018 flow [2024-11-20 13:24:49,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:49,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:49,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2893 transitions. [2024-11-20 13:24:49,964 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8117283950617284 [2024-11-20 13:24:49,965 INFO L175 Difference]: Start difference. First operand has 603 places, 1124 transitions, 5910 flow. Second operand 6 states and 2893 transitions. [2024-11-20 13:24:49,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 607 places, 1284 transitions, 9018 flow [2024-11-20 13:24:50,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 607 places, 1284 transitions, 8250 flow, removed 384 selfloop flow, removed 0 redundant places. [2024-11-20 13:24:50,028 INFO L231 Difference]: Finished difference. Result has 612 places, 1272 transitions, 7202 flow [2024-11-20 13:24:50,029 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=594, PETRI_DIFFERENCE_MINUEND_FLOW=5140, PETRI_DIFFERENCE_MINUEND_PLACES=602, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1075, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=7202, PETRI_PLACES=612, PETRI_TRANSITIONS=1272} [2024-11-20 13:24:50,031 INFO L277 CegarLoopForPetriNet]: 570 programPoint places, 42 predicate places. [2024-11-20 13:24:50,031 INFO L471 AbstractCegarLoop]: Abstraction has has 612 places, 1272 transitions, 7202 flow [2024-11-20 13:24:50,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 438.1666666666667) internal successors, (2629), 6 states have internal predecessors, (2629), 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) [2024-11-20 13:24:50,032 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:50,032 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:50,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 13:24:50,032 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-11-20 13:24:50,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:50,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1523271054, now seen corresponding path program 1 times [2024-11-20 13:24:50,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:50,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887190485] [2024-11-20 13:24:50,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:50,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:50,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:50,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:50,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887190485] [2024-11-20 13:24:50,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887190485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:50,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:50,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:50,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316832402] [2024-11-20 13:24:50,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:50,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:50,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:50,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:50,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:51,136 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 594 [2024-11-20 13:24:51,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 612 places, 1272 transitions, 7202 flow. Second operand has 6 states, 6 states have (on average 439.8333333333333) internal successors, (2639), 6 states have internal predecessors, (2639), 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) [2024-11-20 13:24:51,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:51,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 594 [2024-11-20 13:24:51,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand