./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_ok.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_ok.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 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:23:57,532 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:23:57,569 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:23:57,573 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:23:57,573 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:23:57,596 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:23:57,596 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:23:57,597 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:23:57,597 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:23:57,597 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:23:57,599 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:23:57,600 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:23:57,601 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:23:57,601 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:23:57,602 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:23:57,602 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:23:57,603 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:23:57,606 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:23:57,607 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:23:57,607 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:23:57,607 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:23:57,608 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:23:57,608 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:23:57,608 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:23:57,608 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:23:57,609 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:23:57,609 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:23:57,609 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:23:57,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:23:57,609 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:23:57,610 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:23:57,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:23:57,610 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:23:57,610 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:23:57,611 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:23:57,611 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:23:57,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:23:57,613 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:23:57,614 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:23:57,614 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:23:57,614 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:23:57,614 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 [2024-11-20 13:23:57,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:23:57,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:23:57,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:23:57,870 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:23:57,870 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:23:57,871 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_ok.i [2024-11-20 13:23:59,230 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:23:59,435 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:23:59,436 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_ok.i [2024-11-20 13:23:59,448 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29777245b/55b066915a414072a4994141b8245704/FLAG63f5fc215 [2024-11-20 13:23:59,791 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29777245b/55b066915a414072a4994141b8245704 [2024-11-20 13:23:59,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:23:59,794 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:23:59,797 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:23:59,798 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:23:59,802 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:23:59,803 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:23:59" (1/1) ... [2024-11-20 13:23:59,803 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37a9117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:23:59, skipping insertion in model container [2024-11-20 13:23:59,804 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:23:59" (1/1) ... [2024-11-20 13:23:59,843 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:24:00,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:24:00,308 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:24:00,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:24:00,428 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:24:00,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:00 WrapperNode [2024-11-20 13:24:00,428 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:24:00,429 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:24:00,429 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:24:00,429 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:24:00,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:00" (1/1) ... [2024-11-20 13:24:00,458 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:00" (1/1) ... [2024-11-20 13:24:00,498 INFO L138 Inliner]: procedures = 274, calls = 94, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 415 [2024-11-20 13:24:00,499 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:24:00,499 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:24:00,503 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:24:00,503 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:24:00,510 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:00" (1/1) ... [2024-11-20 13:24:00,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:00" (1/1) ... [2024-11-20 13:24:00,521 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:00" (1/1) ... [2024-11-20 13:24:00,521 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:00" (1/1) ... [2024-11-20 13:24:00,546 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:00" (1/1) ... [2024-11-20 13:24:00,557 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:00" (1/1) ... [2024-11-20 13:24:00,563 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:00" (1/1) ... [2024-11-20 13:24:00,565 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:00" (1/1) ... [2024-11-20 13:24:00,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:24:00,572 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:24:00,573 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:24:00,577 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:24:00,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:00" (1/1) ... [2024-11-20 13:24:00,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:24:00,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:24:00,606 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 13:24:00,608 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 13:24:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-11-20 13:24:00,661 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-11-20 13:24:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-11-20 13:24:00,661 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-11-20 13:24:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 13:24:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 13:24:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-20 13:24:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 13:24:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:24:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:24:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:24:00,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:24:00,664 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 13:24:00,798 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:24:00,800 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:24:01,310 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:24:01,310 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:24:01,335 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:24:01,336 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 13:24:01,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:24:01 BoogieIcfgContainer [2024-11-20 13:24:01,336 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:24:01,338 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:24:01,338 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:24:01,340 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:24:01,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:23:59" (1/3) ... [2024-11-20 13:24:01,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1681bbdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:24:01, skipping insertion in model container [2024-11-20 13:24:01,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:24:00" (2/3) ... [2024-11-20 13:24:01,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1681bbdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:24:01, skipping insertion in model container [2024-11-20 13:24:01,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:24:01" (3/3) ... [2024-11-20 13:24:01,342 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok.i [2024-11-20 13:24:01,354 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:24:01,355 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2024-11-20 13:24:01,355 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:24:01,483 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-20 13:24:01,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 466 places, 474 transitions, 962 flow [2024-11-20 13:24:01,723 INFO L124 PetriNetUnfolderBase]: 15/472 cut-off events. [2024-11-20 13:24:01,723 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 13:24:01,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 481 conditions, 472 events. 15/472 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 714 event pairs, 0 based on Foata normal form. 0/424 useless extension candidates. Maximal degree in co-relation 311. Up to 3 conditions per place. [2024-11-20 13:24:01,734 INFO L82 GeneralOperation]: Start removeDead. Operand has 466 places, 474 transitions, 962 flow [2024-11-20 13:24:01,745 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 459 places, 467 transitions, 943 flow [2024-11-20 13:24:01,757 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:24:01,791 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;@7511aa83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:24:01,791 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2024-11-20 13:24:01,808 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:24:01,808 INFO L124 PetriNetUnfolderBase]: 0/69 cut-off events. [2024-11-20 13:24:01,808 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:24:01,808 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:01,809 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] [2024-11-20 13:24:01,809 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:01,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:01,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1669057084, now seen corresponding path program 1 times [2024-11-20 13:24:01,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:01,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236079297] [2024-11-20 13:24:01,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:01,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:01,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:02,106 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 13:24:02,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:02,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236079297] [2024-11-20 13:24:02,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236079297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:02,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:02,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:24:02,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409625701] [2024-11-20 13:24:02,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:02,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:24:02,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:02,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:24:02,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:24:02,228 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 474 [2024-11-20 13:24:02,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 467 transitions, 943 flow. Second operand has 3 states, 3 states have (on average 448.3333333333333) internal successors, (1345), 3 states have internal predecessors, (1345), 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 13:24:02,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:02,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 474 [2024-11-20 13:24:02,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:02,537 INFO L124 PetriNetUnfolderBase]: 40/986 cut-off events. [2024-11-20 13:24:02,537 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-20 13:24:02,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1059 conditions, 986 events. 40/986 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4379 event pairs, 19 based on Foata normal form. 13/891 useless extension candidates. Maximal degree in co-relation 881. Up to 52 conditions per place. [2024-11-20 13:24:02,559 INFO L140 encePairwiseOnDemand]: 466/474 looper letters, 13 selfloop transitions, 2 changer transitions 0/452 dead transitions. [2024-11-20 13:24:02,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 452 transitions, 943 flow [2024-11-20 13:24:02,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:24:02,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:24:02,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1362 transitions. [2024-11-20 13:24:02,575 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9578059071729957 [2024-11-20 13:24:02,577 INFO L175 Difference]: Start difference. First operand has 459 places, 467 transitions, 943 flow. Second operand 3 states and 1362 transitions. [2024-11-20 13:24:02,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 452 transitions, 943 flow [2024-11-20 13:24:02,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 452 transitions, 938 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 13:24:02,587 INFO L231 Difference]: Finished difference. Result has 449 places, 452 transitions, 912 flow [2024-11-20 13:24:02,590 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=908, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=912, PETRI_PLACES=449, PETRI_TRANSITIONS=452} [2024-11-20 13:24:02,592 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -10 predicate places. [2024-11-20 13:24:02,592 INFO L471 AbstractCegarLoop]: Abstraction has has 449 places, 452 transitions, 912 flow [2024-11-20 13:24:02,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 448.3333333333333) internal successors, (1345), 3 states have internal predecessors, (1345), 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 13:24:02,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:02,594 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] [2024-11-20 13:24:02,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:24:02,594 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:02,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:02,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2112843891, now seen corresponding path program 1 times [2024-11-20 13:24:02,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:02,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112457660] [2024-11-20 13:24:02,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:02,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:02,658 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 13:24:02,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:02,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112457660] [2024-11-20 13:24:02,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112457660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:02,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:02,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:24:02,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144801393] [2024-11-20 13:24:02,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:02,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:24:02,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:02,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:24:02,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:24:02,706 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 474 [2024-11-20 13:24:02,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 452 transitions, 912 flow. Second operand has 3 states, 3 states have (on average 448.3333333333333) internal successors, (1345), 3 states have internal predecessors, (1345), 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 13:24:02,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:02,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 474 [2024-11-20 13:24:02,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:03,023 INFO L124 PetriNetUnfolderBase]: 43/1114 cut-off events. [2024-11-20 13:24:03,024 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-20 13:24:03,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1181 conditions, 1114 events. 43/1114 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5439 event pairs, 19 based on Foata normal form. 0/996 useless extension candidates. Maximal degree in co-relation 1104. Up to 52 conditions per place. [2024-11-20 13:24:03,047 INFO L140 encePairwiseOnDemand]: 471/474 looper letters, 13 selfloop transitions, 2 changer transitions 0/451 dead transitions. [2024-11-20 13:24:03,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 451 transitions, 940 flow [2024-11-20 13:24:03,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:24:03,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:24:03,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1357 transitions. [2024-11-20 13:24:03,050 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9542897327707455 [2024-11-20 13:24:03,050 INFO L175 Difference]: Start difference. First operand has 449 places, 452 transitions, 912 flow. Second operand 3 states and 1357 transitions. [2024-11-20 13:24:03,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 451 transitions, 940 flow [2024-11-20 13:24:03,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 451 transitions, 936 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:24:03,064 INFO L231 Difference]: Finished difference. Result has 448 places, 451 transitions, 910 flow [2024-11-20 13:24:03,069 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=906, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=451, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=910, PETRI_PLACES=448, PETRI_TRANSITIONS=451} [2024-11-20 13:24:03,070 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -11 predicate places. [2024-11-20 13:24:03,072 INFO L471 AbstractCegarLoop]: Abstraction has has 448 places, 451 transitions, 910 flow [2024-11-20 13:24:03,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 448.3333333333333) internal successors, (1345), 3 states have internal predecessors, (1345), 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 13:24:03,073 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:03,073 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:03,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 13:24:03,077 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:03,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:03,078 INFO L85 PathProgramCache]: Analyzing trace with hash -83855274, now seen corresponding path program 1 times [2024-11-20 13:24:03,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:03,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591031914] [2024-11-20 13:24:03,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:03,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:03,699 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 13:24:03,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:03,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591031914] [2024-11-20 13:24:03,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591031914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:03,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:03,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:03,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520373782] [2024-11-20 13:24:03,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:03,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:03,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:03,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:03,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:04,220 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 474 [2024-11-20 13:24:04,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 451 transitions, 910 flow. Second operand has 6 states, 6 states have (on average 359.3333333333333) internal successors, (2156), 6 states have internal predecessors, (2156), 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 13:24:04,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:04,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 474 [2024-11-20 13:24:04,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:06,217 INFO L124 PetriNetUnfolderBase]: 2177/9184 cut-off events. [2024-11-20 13:24:06,217 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-11-20 13:24:06,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13285 conditions, 9184 events. 2177/9184 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 79864 event pairs, 1832 based on Foata normal form. 0/8228 useless extension candidates. Maximal degree in co-relation 13204. Up to 4013 conditions per place. [2024-11-20 13:24:06,267 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 100 selfloop transitions, 5 changer transitions 0/450 dead transitions. [2024-11-20 13:24:06,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 450 transitions, 1118 flow [2024-11-20 13:24:06,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:06,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:06,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2254 transitions. [2024-11-20 13:24:06,273 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7925457102672293 [2024-11-20 13:24:06,273 INFO L175 Difference]: Start difference. First operand has 448 places, 451 transitions, 910 flow. Second operand 6 states and 2254 transitions. [2024-11-20 13:24:06,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 450 transitions, 1118 flow [2024-11-20 13:24:06,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 450 transitions, 1114 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:24:06,280 INFO L231 Difference]: Finished difference. Result has 450 places, 450 transitions, 914 flow [2024-11-20 13:24:06,281 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=445, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=914, PETRI_PLACES=450, PETRI_TRANSITIONS=450} [2024-11-20 13:24:06,281 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -9 predicate places. [2024-11-20 13:24:06,282 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 450 transitions, 914 flow [2024-11-20 13:24:06,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 359.3333333333333) internal successors, (2156), 6 states have internal predecessors, (2156), 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 13:24:06,283 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:06,283 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 13:24:06,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 13:24:06,283 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:06,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:06,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1353436018, now seen corresponding path program 1 times [2024-11-20 13:24:06,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:06,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125005433] [2024-11-20 13:24:06,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:06,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:06,771 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 13:24:06,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:06,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125005433] [2024-11-20 13:24:06,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125005433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:06,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:06,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:06,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536583406] [2024-11-20 13:24:06,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:06,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:06,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:06,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:06,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:07,176 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 474 [2024-11-20 13:24:07,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 450 transitions, 914 flow. Second operand has 6 states, 6 states have (on average 359.3333333333333) internal successors, (2156), 6 states have internal predecessors, (2156), 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 13:24:07,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:07,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 474 [2024-11-20 13:24:07,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:09,567 INFO L124 PetriNetUnfolderBase]: 2177/9183 cut-off events. [2024-11-20 13:24:09,571 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-11-20 13:24:09,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13287 conditions, 9183 events. 2177/9183 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 79786 event pairs, 1832 based on Foata normal form. 0/8228 useless extension candidates. Maximal degree in co-relation 13190. Up to 4013 conditions per place. [2024-11-20 13:24:09,682 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 100 selfloop transitions, 5 changer transitions 0/449 dead transitions. [2024-11-20 13:24:09,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 449 transitions, 1122 flow [2024-11-20 13:24:09,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:09,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:09,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2254 transitions. [2024-11-20 13:24:09,695 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7925457102672293 [2024-11-20 13:24:09,696 INFO L175 Difference]: Start difference. First operand has 450 places, 450 transitions, 914 flow. Second operand 6 states and 2254 transitions. [2024-11-20 13:24:09,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 449 transitions, 1122 flow [2024-11-20 13:24:09,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 449 transitions, 1112 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:24:09,711 INFO L231 Difference]: Finished difference. Result has 449 places, 449 transitions, 912 flow [2024-11-20 13:24:09,712 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=912, PETRI_PLACES=449, PETRI_TRANSITIONS=449} [2024-11-20 13:24:09,719 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -10 predicate places. [2024-11-20 13:24:09,719 INFO L471 AbstractCegarLoop]: Abstraction has has 449 places, 449 transitions, 912 flow [2024-11-20 13:24:09,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 359.3333333333333) internal successors, (2156), 6 states have internal predecessors, (2156), 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 13:24:09,720 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:09,720 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 13:24:09,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 13:24:09,721 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:09,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:09,721 INFO L85 PathProgramCache]: Analyzing trace with hash -724785312, now seen corresponding path program 1 times [2024-11-20 13:24:09,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:09,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138766504] [2024-11-20 13:24:09,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:09,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:10,350 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 13:24:10,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:10,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138766504] [2024-11-20 13:24:10,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138766504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:10,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:10,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:10,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035341265] [2024-11-20 13:24:10,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:10,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:10,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:10,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:10,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:11,016 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 474 [2024-11-20 13:24:11,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 449 transitions, 912 flow. Second operand has 6 states, 6 states have (on average 359.3333333333333) internal successors, (2156), 6 states have internal predecessors, (2156), 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 13:24:11,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:11,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 474 [2024-11-20 13:24:11,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:12,871 INFO L124 PetriNetUnfolderBase]: 2177/9182 cut-off events. [2024-11-20 13:24:12,871 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-11-20 13:24:12,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13286 conditions, 9182 events. 2177/9182 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 79836 event pairs, 1832 based on Foata normal form. 0/8228 useless extension candidates. Maximal degree in co-relation 13181. Up to 4013 conditions per place. [2024-11-20 13:24:12,951 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 100 selfloop transitions, 5 changer transitions 0/448 dead transitions. [2024-11-20 13:24:12,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 448 transitions, 1120 flow [2024-11-20 13:24:12,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:12,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:12,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2254 transitions. [2024-11-20 13:24:12,955 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7925457102672293 [2024-11-20 13:24:12,955 INFO L175 Difference]: Start difference. First operand has 449 places, 449 transitions, 912 flow. Second operand 6 states and 2254 transitions. [2024-11-20 13:24:12,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 448 transitions, 1120 flow [2024-11-20 13:24:12,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 448 transitions, 1110 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:24:12,969 INFO L231 Difference]: Finished difference. Result has 448 places, 448 transitions, 910 flow [2024-11-20 13:24:12,972 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=900, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=910, PETRI_PLACES=448, PETRI_TRANSITIONS=448} [2024-11-20 13:24:12,975 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -11 predicate places. [2024-11-20 13:24:12,979 INFO L471 AbstractCegarLoop]: Abstraction has has 448 places, 448 transitions, 910 flow [2024-11-20 13:24:12,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 359.3333333333333) internal successors, (2156), 6 states have internal predecessors, (2156), 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 13:24:12,981 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:12,981 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] [2024-11-20 13:24:12,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 13:24:12,981 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:12,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:12,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1058618610, now seen corresponding path program 1 times [2024-11-20 13:24:12,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:12,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984852812] [2024-11-20 13:24:12,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:12,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:13,626 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 13:24:13,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:13,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984852812] [2024-11-20 13:24:13,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984852812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:13,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:13,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:13,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007886863] [2024-11-20 13:24:13,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:13,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:13,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:13,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:13,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:14,568 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 404 out of 474 [2024-11-20 13:24:14,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 448 transitions, 910 flow. Second operand has 6 states, 6 states have (on average 407.1666666666667) internal successors, (2443), 6 states have internal predecessors, (2443), 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 13:24:14,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:14,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 404 of 474 [2024-11-20 13:24:14,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:15,598 INFO L124 PetriNetUnfolderBase]: 502/4907 cut-off events. [2024-11-20 13:24:15,598 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-20 13:24:15,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5777 conditions, 4907 events. 502/4907 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 39175 event pairs, 344 based on Foata normal form. 0/4325 useless extension candidates. Maximal degree in co-relation 5654. Up to 811 conditions per place. [2024-11-20 13:24:15,629 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 54 selfloop transitions, 5 changer transitions 0/447 dead transitions. [2024-11-20 13:24:15,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 447 transitions, 1026 flow [2024-11-20 13:24:15,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:15,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:15,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2484 transitions. [2024-11-20 13:24:15,640 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8734177215189873 [2024-11-20 13:24:15,640 INFO L175 Difference]: Start difference. First operand has 448 places, 448 transitions, 910 flow. Second operand 6 states and 2484 transitions. [2024-11-20 13:24:15,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 447 transitions, 1026 flow [2024-11-20 13:24:15,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 447 transitions, 1016 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:24:15,658 INFO L231 Difference]: Finished difference. Result has 447 places, 447 transitions, 908 flow [2024-11-20 13:24:15,659 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=908, PETRI_PLACES=447, PETRI_TRANSITIONS=447} [2024-11-20 13:24:15,661 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -12 predicate places. [2024-11-20 13:24:15,661 INFO L471 AbstractCegarLoop]: Abstraction has has 447 places, 447 transitions, 908 flow [2024-11-20 13:24:15,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 407.1666666666667) internal successors, (2443), 6 states have internal predecessors, (2443), 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 13:24:15,667 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:15,667 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] [2024-11-20 13:24:15,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 13:24:15,667 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:15,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:15,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1311928055, now seen corresponding path program 1 times [2024-11-20 13:24:15,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:15,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082334412] [2024-11-20 13:24:15,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:15,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:16,389 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 13:24:16,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:16,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082334412] [2024-11-20 13:24:16,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082334412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:16,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:16,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:16,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105381577] [2024-11-20 13:24:16,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:16,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:16,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:16,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:16,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:17,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 404 out of 474 [2024-11-20 13:24:17,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 447 transitions, 908 flow. Second operand has 6 states, 6 states have (on average 407.1666666666667) internal successors, (2443), 6 states have internal predecessors, (2443), 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 13:24:17,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:17,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 404 of 474 [2024-11-20 13:24:17,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:17,884 INFO L124 PetriNetUnfolderBase]: 502/4906 cut-off events. [2024-11-20 13:24:17,884 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-20 13:24:17,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5776 conditions, 4906 events. 502/4906 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 39123 event pairs, 344 based on Foata normal form. 0/4325 useless extension candidates. Maximal degree in co-relation 5615. Up to 811 conditions per place. [2024-11-20 13:24:17,908 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 54 selfloop transitions, 5 changer transitions 0/446 dead transitions. [2024-11-20 13:24:17,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 446 transitions, 1024 flow [2024-11-20 13:24:17,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:17,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:17,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2484 transitions. [2024-11-20 13:24:17,923 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8734177215189873 [2024-11-20 13:24:17,927 INFO L175 Difference]: Start difference. First operand has 447 places, 447 transitions, 908 flow. Second operand 6 states and 2484 transitions. [2024-11-20 13:24:17,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 446 transitions, 1024 flow [2024-11-20 13:24:17,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 446 transitions, 1014 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:24:17,932 INFO L231 Difference]: Finished difference. Result has 446 places, 446 transitions, 906 flow [2024-11-20 13:24:17,937 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=906, PETRI_PLACES=446, PETRI_TRANSITIONS=446} [2024-11-20 13:24:17,937 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -13 predicate places. [2024-11-20 13:24:17,938 INFO L471 AbstractCegarLoop]: Abstraction has has 446 places, 446 transitions, 906 flow [2024-11-20 13:24:17,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 407.1666666666667) internal successors, (2443), 6 states have internal predecessors, (2443), 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 13:24:17,943 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:17,943 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] [2024-11-20 13:24:17,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 13:24:17,944 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:17,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:17,944 INFO L85 PathProgramCache]: Analyzing trace with hash -92809043, now seen corresponding path program 1 times [2024-11-20 13:24:17,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:17,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734611913] [2024-11-20 13:24:17,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:17,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:18,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:18,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:18,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:18,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734611913] [2024-11-20 13:24:18,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734611913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:18,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:18,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:24:18,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952024364] [2024-11-20 13:24:18,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:18,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:24:18,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:18,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:24:18,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:24:18,324 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 474 [2024-11-20 13:24:18,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 446 transitions, 906 flow. Second operand has 3 states, 3 states have (on average 452.6666666666667) internal successors, (1358), 3 states have internal predecessors, (1358), 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 13:24:18,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:18,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 474 [2024-11-20 13:24:18,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:18,569 INFO L124 PetriNetUnfolderBase]: 53/1041 cut-off events. [2024-11-20 13:24:18,573 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-20 13:24:18,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1151 conditions, 1041 events. 53/1041 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4944 event pairs, 12 based on Foata normal form. 0/937 useless extension candidates. Maximal degree in co-relation 1009. Up to 56 conditions per place. [2024-11-20 13:24:18,588 INFO L140 encePairwiseOnDemand]: 469/474 looper letters, 17 selfloop transitions, 4 changer transitions 0/454 dead transitions. [2024-11-20 13:24:18,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 454 transitions, 967 flow [2024-11-20 13:24:18,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:24:18,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:24:18,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1375 transitions. [2024-11-20 13:24:18,594 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9669479606188467 [2024-11-20 13:24:18,598 INFO L175 Difference]: Start difference. First operand has 446 places, 446 transitions, 906 flow. Second operand 3 states and 1375 transitions. [2024-11-20 13:24:18,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 454 transitions, 967 flow [2024-11-20 13:24:18,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 454 transitions, 957 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:24:18,610 INFO L231 Difference]: Finished difference. Result has 445 places, 449 transitions, 926 flow [2024-11-20 13:24:18,611 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=926, PETRI_PLACES=445, PETRI_TRANSITIONS=449} [2024-11-20 13:24:18,615 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -14 predicate places. [2024-11-20 13:24:18,616 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 449 transitions, 926 flow [2024-11-20 13:24:18,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 452.6666666666667) internal successors, (1358), 3 states have internal predecessors, (1358), 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 13:24:18,617 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:18,617 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:24:18,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 13:24:18,618 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:18,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:18,618 INFO L85 PathProgramCache]: Analyzing trace with hash -255892683, now seen corresponding path program 1 times [2024-11-20 13:24:18,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:18,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545522157] [2024-11-20 13:24:18,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:18,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:18,718 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 13:24:18,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:18,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545522157] [2024-11-20 13:24:18,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545522157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:18,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:18,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:24:18,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620958393] [2024-11-20 13:24:18,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:18,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:24:18,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:18,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:24:18,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:24:18,746 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 474 [2024-11-20 13:24:18,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 449 transitions, 926 flow. Second operand has 3 states, 3 states have (on average 453.0) internal successors, (1359), 3 states have internal predecessors, (1359), 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 13:24:18,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:18,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 474 [2024-11-20 13:24:18,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:19,196 INFO L124 PetriNetUnfolderBase]: 96/2101 cut-off events. [2024-11-20 13:24:19,196 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-20 13:24:19,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2279 conditions, 2101 events. 96/2101 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 13702 event pairs, 24 based on Foata normal form. 0/1880 useless extension candidates. Maximal degree in co-relation 1965. Up to 85 conditions per place. [2024-11-20 13:24:19,221 INFO L140 encePairwiseOnDemand]: 469/474 looper letters, 16 selfloop transitions, 4 changer transitions 0/456 dead transitions. [2024-11-20 13:24:19,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 456 transitions, 981 flow [2024-11-20 13:24:19,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:24:19,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:24:19,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1374 transitions. [2024-11-20 13:24:19,227 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9662447257383966 [2024-11-20 13:24:19,227 INFO L175 Difference]: Start difference. First operand has 445 places, 449 transitions, 926 flow. Second operand 3 states and 1374 transitions. [2024-11-20 13:24:19,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 456 transitions, 981 flow [2024-11-20 13:24:19,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 456 transitions, 973 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:24:19,241 INFO L231 Difference]: Finished difference. Result has 447 places, 452 transitions, 948 flow [2024-11-20 13:24:19,241 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=918, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=445, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=948, PETRI_PLACES=447, PETRI_TRANSITIONS=452} [2024-11-20 13:24:19,242 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -12 predicate places. [2024-11-20 13:24:19,242 INFO L471 AbstractCegarLoop]: Abstraction has has 447 places, 452 transitions, 948 flow [2024-11-20 13:24:19,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 453.0) internal successors, (1359), 3 states have internal predecessors, (1359), 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 13:24:19,243 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:19,243 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] [2024-11-20 13:24:19,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 13:24:19,243 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:19,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:19,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1959281702, now seen corresponding path program 1 times [2024-11-20 13:24:19,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:19,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535387186] [2024-11-20 13:24:19,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:19,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:19,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:19,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:19,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535387186] [2024-11-20 13:24:19,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535387186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:19,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:19,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:24:19,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952269025] [2024-11-20 13:24:19,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:19,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:24:19,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:19,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:24:19,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:24:19,364 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 474 [2024-11-20 13:24:19,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 452 transitions, 948 flow. Second operand has 3 states, 3 states have (on average 454.6666666666667) internal successors, (1364), 3 states have internal predecessors, (1364), 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 13:24:19,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:19,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 474 [2024-11-20 13:24:19,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:19,701 INFO L124 PetriNetUnfolderBase]: 81/2177 cut-off events. [2024-11-20 13:24:19,701 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-20 13:24:19,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2366 conditions, 2177 events. 81/2177 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 12325 event pairs, 33 based on Foata normal form. 7/1970 useless extension candidates. Maximal degree in co-relation 1934. Up to 103 conditions per place. [2024-11-20 13:24:19,710 INFO L140 encePairwiseOnDemand]: 471/474 looper letters, 13 selfloop transitions, 2 changer transitions 0/456 dead transitions. [2024-11-20 13:24:19,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 456 transitions, 988 flow [2024-11-20 13:24:19,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:24:19,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:24:19,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1375 transitions. [2024-11-20 13:24:19,713 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9669479606188467 [2024-11-20 13:24:19,713 INFO L175 Difference]: Start difference. First operand has 447 places, 452 transitions, 948 flow. Second operand 3 states and 1375 transitions. [2024-11-20 13:24:19,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 456 transitions, 988 flow [2024-11-20 13:24:19,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 456 transitions, 980 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:24:19,721 INFO L231 Difference]: Finished difference. Result has 448 places, 453 transitions, 952 flow [2024-11-20 13:24:19,722 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=940, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=952, PETRI_PLACES=448, PETRI_TRANSITIONS=453} [2024-11-20 13:24:19,722 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -11 predicate places. [2024-11-20 13:24:19,723 INFO L471 AbstractCegarLoop]: Abstraction has has 448 places, 453 transitions, 952 flow [2024-11-20 13:24:19,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 454.6666666666667) internal successors, (1364), 3 states have internal predecessors, (1364), 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 13:24:19,724 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:19,724 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] [2024-11-20 13:24:19,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 13:24:19,724 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:19,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:19,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1153430527, now seen corresponding path program 1 times [2024-11-20 13:24:19,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:19,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868176130] [2024-11-20 13:24:19,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:19,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:19,804 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 13:24:19,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:19,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868176130] [2024-11-20 13:24:19,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868176130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:19,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:19,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:24:19,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201234839] [2024-11-20 13:24:19,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:19,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:24:19,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:19,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:24:19,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:24:19,823 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 474 [2024-11-20 13:24:19,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 453 transitions, 952 flow. Second operand has 3 states, 3 states have (on average 455.0) internal successors, (1365), 3 states have internal predecessors, (1365), 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 13:24:19,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:19,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 474 [2024-11-20 13:24:19,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:20,807 INFO L124 PetriNetUnfolderBase]: 136/3825 cut-off events. [2024-11-20 13:24:20,811 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-11-20 13:24:20,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4046 conditions, 3825 events. 136/3825 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 26289 event pairs, 40 based on Foata normal form. 9/3434 useless extension candidates. Maximal degree in co-relation 3630. Up to 113 conditions per place. [2024-11-20 13:24:20,891 INFO L140 encePairwiseOnDemand]: 471/474 looper letters, 13 selfloop transitions, 2 changer transitions 0/457 dead transitions. [2024-11-20 13:24:20,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 457 transitions, 991 flow [2024-11-20 13:24:20,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:24:20,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:24:20,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1375 transitions. [2024-11-20 13:24:20,894 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9669479606188467 [2024-11-20 13:24:20,894 INFO L175 Difference]: Start difference. First operand has 448 places, 453 transitions, 952 flow. Second operand 3 states and 1375 transitions. [2024-11-20 13:24:20,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 457 transitions, 991 flow [2024-11-20 13:24:20,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 457 transitions, 989 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:24:20,910 INFO L231 Difference]: Finished difference. Result has 450 places, 454 transitions, 962 flow [2024-11-20 13:24:20,915 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=950, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=962, PETRI_PLACES=450, PETRI_TRANSITIONS=454} [2024-11-20 13:24:20,916 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -9 predicate places. [2024-11-20 13:24:20,916 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 454 transitions, 962 flow [2024-11-20 13:24:20,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.0) internal successors, (1365), 3 states have internal predecessors, (1365), 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 13:24:20,920 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:20,920 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] [2024-11-20 13:24:20,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 13:24:20,921 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:20,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:20,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1679739742, now seen corresponding path program 1 times [2024-11-20 13:24:20,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:20,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993929467] [2024-11-20 13:24:20,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:20,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:21,716 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 13:24:21,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:21,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993929467] [2024-11-20 13:24:21,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993929467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:21,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:21,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:21,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666756189] [2024-11-20 13:24:21,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:21,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:21,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:21,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:21,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:22,580 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 394 out of 474 [2024-11-20 13:24:22,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 454 transitions, 962 flow. Second operand has 6 states, 6 states have (on average 397.5) internal successors, (2385), 6 states have internal predecessors, (2385), 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 13:24:22,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:22,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 394 of 474 [2024-11-20 13:24:22,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:27,008 INFO L124 PetriNetUnfolderBase]: 3989/24248 cut-off events. [2024-11-20 13:24:27,008 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2024-11-20 13:24:27,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32094 conditions, 24248 events. 3989/24248 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 282507 event pairs, 1490 based on Foata normal form. 0/21673 useless extension candidates. Maximal degree in co-relation 31312. Up to 5594 conditions per place. [2024-11-20 13:24:27,296 INFO L140 encePairwiseOnDemand]: 441/474 looper letters, 83 selfloop transitions, 66 changer transitions 0/533 dead transitions. [2024-11-20 13:24:27,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 533 transitions, 1426 flow [2024-11-20 13:24:27,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:27,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:27,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2516 transitions. [2024-11-20 13:24:27,309 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8846694796061885 [2024-11-20 13:24:27,309 INFO L175 Difference]: Start difference. First operand has 450 places, 454 transitions, 962 flow. Second operand 6 states and 2516 transitions. [2024-11-20 13:24:27,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 533 transitions, 1426 flow [2024-11-20 13:24:27,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 533 transitions, 1424 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:24:27,325 INFO L231 Difference]: Finished difference. Result has 459 places, 518 transitions, 1414 flow [2024-11-20 13:24:27,331 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=960, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1414, PETRI_PLACES=459, PETRI_TRANSITIONS=518} [2024-11-20 13:24:27,333 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, 0 predicate places. [2024-11-20 13:24:27,333 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 518 transitions, 1414 flow [2024-11-20 13:24:27,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 397.5) internal successors, (2385), 6 states have internal predecessors, (2385), 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 13:24:27,336 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:27,336 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] [2024-11-20 13:24:27,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 13:24:27,337 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:27,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:27,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1139085049, now seen corresponding path program 1 times [2024-11-20 13:24:27,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:27,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756762947] [2024-11-20 13:24:27,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:27,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:27,689 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 13:24:27,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:27,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756762947] [2024-11-20 13:24:27,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756762947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:27,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:27,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:24:27,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370183455] [2024-11-20 13:24:27,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:27,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:24:27,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:27,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:24:27,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:24:27,705 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 474 [2024-11-20 13:24:27,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 518 transitions, 1414 flow. Second operand has 3 states, 3 states have (on average 454.0) internal successors, (1362), 3 states have internal predecessors, (1362), 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 13:24:27,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:27,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 474 [2024-11-20 13:24:27,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:28,115 INFO L124 PetriNetUnfolderBase]: 86/2843 cut-off events. [2024-11-20 13:24:28,115 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2024-11-20 13:24:28,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3390 conditions, 2843 events. 86/2843 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 17295 event pairs, 17 based on Foata normal form. 4/2583 useless extension candidates. Maximal degree in co-relation 2911. Up to 169 conditions per place. [2024-11-20 13:24:28,127 INFO L140 encePairwiseOnDemand]: 470/474 looper letters, 14 selfloop transitions, 3 changer transitions 0/452 dead transitions. [2024-11-20 13:24:28,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 452 transitions, 1067 flow [2024-11-20 13:24:28,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:24:28,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:24:28,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1374 transitions. [2024-11-20 13:24:28,131 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9662447257383966 [2024-11-20 13:24:28,131 INFO L175 Difference]: Start difference. First operand has 459 places, 518 transitions, 1414 flow. Second operand 3 states and 1374 transitions. [2024-11-20 13:24:28,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 452 transitions, 1067 flow [2024-11-20 13:24:28,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 452 transitions, 977 flow, removed 21 selfloop flow, removed 12 redundant places. [2024-11-20 13:24:28,139 INFO L231 Difference]: Finished difference. Result has 446 places, 447 transitions, 941 flow [2024-11-20 13:24:28,139 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=941, PETRI_PLACES=446, PETRI_TRANSITIONS=447} [2024-11-20 13:24:28,140 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -13 predicate places. [2024-11-20 13:24:28,140 INFO L471 AbstractCegarLoop]: Abstraction has has 446 places, 447 transitions, 941 flow [2024-11-20 13:24:28,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 454.0) internal successors, (1362), 3 states have internal predecessors, (1362), 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 13:24:28,141 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:28,141 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] [2024-11-20 13:24:28,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 13:24:28,141 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:28,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:28,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1409365038, now seen corresponding path program 1 times [2024-11-20 13:24:28,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:28,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947623602] [2024-11-20 13:24:28,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:28,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:28,578 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 13:24:28,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:28,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947623602] [2024-11-20 13:24:28,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947623602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:28,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:28,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:28,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681623817] [2024-11-20 13:24:28,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:28,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:28,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:28,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:28,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:29,055 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 348 out of 474 [2024-11-20 13:24:29,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 447 transitions, 941 flow. Second operand has 6 states, 6 states have (on average 353.8333333333333) internal successors, (2123), 6 states have internal predecessors, (2123), 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 13:24:29,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:29,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 348 of 474 [2024-11-20 13:24:29,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:29,768 INFO L124 PetriNetUnfolderBase]: 693/3437 cut-off events. [2024-11-20 13:24:29,768 INFO L125 PetriNetUnfolderBase]: For 193/193 co-relation queries the response was YES. [2024-11-20 13:24:29,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5268 conditions, 3437 events. 693/3437 cut-off events. For 193/193 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 23942 event pairs, 604 based on Foata normal form. 0/3174 useless extension candidates. Maximal degree in co-relation 4400. Up to 1497 conditions per place. [2024-11-20 13:24:29,791 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 122 selfloop transitions, 5 changer transitions 0/458 dead transitions. [2024-11-20 13:24:29,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 458 transitions, 1225 flow [2024-11-20 13:24:29,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:29,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:29,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2216 transitions. [2024-11-20 13:24:29,803 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7791842475386779 [2024-11-20 13:24:29,804 INFO L175 Difference]: Start difference. First operand has 446 places, 447 transitions, 941 flow. Second operand 6 states and 2216 transitions. [2024-11-20 13:24:29,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 458 transitions, 1225 flow [2024-11-20 13:24:29,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 458 transitions, 1219 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:24:29,818 INFO L231 Difference]: Finished difference. Result has 448 places, 446 transitions, 943 flow [2024-11-20 13:24:29,819 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=943, PETRI_PLACES=448, PETRI_TRANSITIONS=446} [2024-11-20 13:24:29,820 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -11 predicate places. [2024-11-20 13:24:29,820 INFO L471 AbstractCegarLoop]: Abstraction has has 448 places, 446 transitions, 943 flow [2024-11-20 13:24:29,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 353.8333333333333) internal successors, (2123), 6 states have internal predecessors, (2123), 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 13:24:29,821 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:29,821 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] [2024-11-20 13:24:29,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 13:24:29,825 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:29,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:29,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1784898089, now seen corresponding path program 1 times [2024-11-20 13:24:29,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:29,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371301541] [2024-11-20 13:24:29,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:29,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:30,835 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 13:24:30,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:30,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371301541] [2024-11-20 13:24:30,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371301541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:30,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:30,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:30,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315986195] [2024-11-20 13:24:30,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:30,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:30,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:30,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:30,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:31,878 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 474 [2024-11-20 13:24:31,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 446 transitions, 943 flow. Second operand has 6 states, 6 states have (on average 415.1666666666667) internal successors, (2491), 6 states have internal predecessors, (2491), 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 13:24:31,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:31,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 474 [2024-11-20 13:24:31,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:32,275 INFO L124 PetriNetUnfolderBase]: 297/2792 cut-off events. [2024-11-20 13:24:32,276 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2024-11-20 13:24:32,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3596 conditions, 2792 events. 297/2792 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 16385 event pairs, 214 based on Foata normal form. 0/2562 useless extension candidates. Maximal degree in co-relation 2960. Up to 533 conditions per place. [2024-11-20 13:24:32,288 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 59 selfloop transitions, 5 changer transitions 0/457 dead transitions. [2024-11-20 13:24:32,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 457 transitions, 1101 flow [2024-11-20 13:24:32,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:32,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:32,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2531 transitions. [2024-11-20 13:24:32,302 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.889943741209564 [2024-11-20 13:24:32,303 INFO L175 Difference]: Start difference. First operand has 448 places, 446 transitions, 943 flow. Second operand 6 states and 2531 transitions. [2024-11-20 13:24:32,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 457 transitions, 1101 flow [2024-11-20 13:24:32,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 457 transitions, 1091 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:24:32,314 INFO L231 Difference]: Finished difference. Result has 447 places, 445 transitions, 941 flow [2024-11-20 13:24:32,319 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=931, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=941, PETRI_PLACES=447, PETRI_TRANSITIONS=445} [2024-11-20 13:24:32,319 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -12 predicate places. [2024-11-20 13:24:32,320 INFO L471 AbstractCegarLoop]: Abstraction has has 447 places, 445 transitions, 941 flow [2024-11-20 13:24:32,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 415.1666666666667) internal successors, (2491), 6 states have internal predecessors, (2491), 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 13:24:32,321 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:32,321 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] [2024-11-20 13:24:32,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 13:24:32,322 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:32,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:32,326 INFO L85 PathProgramCache]: Analyzing trace with hash 763359068, now seen corresponding path program 1 times [2024-11-20 13:24:32,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:32,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296682183] [2024-11-20 13:24:32,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:32,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:32,988 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 13:24:32,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:32,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296682183] [2024-11-20 13:24:32,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296682183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:32,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:32,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:32,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204021276] [2024-11-20 13:24:32,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:32,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:32,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:32,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:32,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:33,576 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 474 [2024-11-20 13:24:33,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 445 transitions, 941 flow. Second operand has 6 states, 6 states have (on average 375.5) internal successors, (2253), 6 states have internal predecessors, (2253), 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 13:24:33,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:33,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 474 [2024-11-20 13:24:33,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:34,176 INFO L124 PetriNetUnfolderBase]: 567/3295 cut-off events. [2024-11-20 13:24:34,176 INFO L125 PetriNetUnfolderBase]: For 194/194 co-relation queries the response was YES. [2024-11-20 13:24:34,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4777 conditions, 3295 events. 567/3295 cut-off events. For 194/194 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 22454 event pairs, 478 based on Foata normal form. 0/3048 useless extension candidates. Maximal degree in co-relation 4115. Up to 1203 conditions per place. [2024-11-20 13:24:34,189 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 101 selfloop transitions, 5 changer transitions 0/456 dead transitions. [2024-11-20 13:24:34,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 456 transitions, 1183 flow [2024-11-20 13:24:34,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:34,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:34,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2321 transitions. [2024-11-20 13:24:34,194 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8161040787623066 [2024-11-20 13:24:34,194 INFO L175 Difference]: Start difference. First operand has 447 places, 445 transitions, 941 flow. Second operand 6 states and 2321 transitions. [2024-11-20 13:24:34,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 456 transitions, 1183 flow [2024-11-20 13:24:34,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 456 transitions, 1173 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:24:34,201 INFO L231 Difference]: Finished difference. Result has 446 places, 444 transitions, 939 flow [2024-11-20 13:24:34,201 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=929, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=939, PETRI_PLACES=446, PETRI_TRANSITIONS=444} [2024-11-20 13:24:34,202 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -13 predicate places. [2024-11-20 13:24:34,202 INFO L471 AbstractCegarLoop]: Abstraction has has 446 places, 444 transitions, 939 flow [2024-11-20 13:24:34,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 375.5) internal successors, (2253), 6 states have internal predecessors, (2253), 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 13:24:34,205 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:34,205 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] [2024-11-20 13:24:34,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 13:24:34,205 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:34,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:34,207 INFO L85 PathProgramCache]: Analyzing trace with hash -790941493, now seen corresponding path program 1 times [2024-11-20 13:24:34,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:34,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771591291] [2024-11-20 13:24:34,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:34,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:34,675 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 13:24:34,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:34,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771591291] [2024-11-20 13:24:34,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771591291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:34,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:34,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:34,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790027434] [2024-11-20 13:24:34,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:34,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:34,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:34,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:34,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:35,133 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 354 out of 474 [2024-11-20 13:24:35,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 444 transitions, 939 flow. Second operand has 6 states, 6 states have (on average 361.3333333333333) internal successors, (2168), 6 states have internal predecessors, (2168), 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 13:24:35,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:35,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 354 of 474 [2024-11-20 13:24:35,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:35,622 INFO L124 PetriNetUnfolderBase]: 657/3377 cut-off events. [2024-11-20 13:24:35,622 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2024-11-20 13:24:35,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5129 conditions, 3377 events. 657/3377 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 23408 event pairs, 568 based on Foata normal form. 0/3146 useless extension candidates. Maximal degree in co-relation 4319. Up to 1413 conditions per place. [2024-11-20 13:24:35,642 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 116 selfloop transitions, 5 changer transitions 0/455 dead transitions. [2024-11-20 13:24:35,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 455 transitions, 1211 flow [2024-11-20 13:24:35,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:35,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:35,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2246 transitions. [2024-11-20 13:24:35,649 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.789732770745429 [2024-11-20 13:24:35,650 INFO L175 Difference]: Start difference. First operand has 446 places, 444 transitions, 939 flow. Second operand 6 states and 2246 transitions. [2024-11-20 13:24:35,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 455 transitions, 1211 flow [2024-11-20 13:24:35,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 455 transitions, 1201 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:24:35,664 INFO L231 Difference]: Finished difference. Result has 445 places, 443 transitions, 937 flow [2024-11-20 13:24:35,664 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=927, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=937, PETRI_PLACES=445, PETRI_TRANSITIONS=443} [2024-11-20 13:24:35,665 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -14 predicate places. [2024-11-20 13:24:35,665 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 443 transitions, 937 flow [2024-11-20 13:24:35,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 361.3333333333333) internal successors, (2168), 6 states have internal predecessors, (2168), 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 13:24:35,675 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:35,675 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] [2024-11-20 13:24:35,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 13:24:35,675 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:35,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:35,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1121013541, now seen corresponding path program 1 times [2024-11-20 13:24:35,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:35,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069942638] [2024-11-20 13:24:35,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:35,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:36,418 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 13:24:36,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:36,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069942638] [2024-11-20 13:24:36,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069942638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:36,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:36,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:36,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525776002] [2024-11-20 13:24:36,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:36,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:36,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:36,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:36,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:36,984 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 354 out of 474 [2024-11-20 13:24:36,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 443 transitions, 937 flow. Second operand has 6 states, 6 states have (on average 362.1666666666667) internal successors, (2173), 6 states have internal predecessors, (2173), 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 13:24:36,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:36,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 354 of 474 [2024-11-20 13:24:36,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:37,442 INFO L124 PetriNetUnfolderBase]: 651/3363 cut-off events. [2024-11-20 13:24:37,442 INFO L125 PetriNetUnfolderBase]: For 194/194 co-relation queries the response was YES. [2024-11-20 13:24:37,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5105 conditions, 3363 events. 651/3363 cut-off events. For 194/194 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 23393 event pairs, 562 based on Foata normal form. 0/3132 useless extension candidates. Maximal degree in co-relation 4305. Up to 1407 conditions per place. [2024-11-20 13:24:37,464 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 116 selfloop transitions, 5 changer transitions 0/454 dead transitions. [2024-11-20 13:24:37,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 454 transitions, 1209 flow [2024-11-20 13:24:37,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:37,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:37,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2246 transitions. [2024-11-20 13:24:37,471 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.789732770745429 [2024-11-20 13:24:37,472 INFO L175 Difference]: Start difference. First operand has 445 places, 443 transitions, 937 flow. Second operand 6 states and 2246 transitions. [2024-11-20 13:24:37,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 454 transitions, 1209 flow [2024-11-20 13:24:37,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 454 transitions, 1199 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:24:37,486 INFO L231 Difference]: Finished difference. Result has 444 places, 442 transitions, 935 flow [2024-11-20 13:24:37,487 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=925, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=935, PETRI_PLACES=444, PETRI_TRANSITIONS=442} [2024-11-20 13:24:37,488 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -15 predicate places. [2024-11-20 13:24:37,489 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 442 transitions, 935 flow [2024-11-20 13:24:37,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 362.1666666666667) internal successors, (2173), 6 states have internal predecessors, (2173), 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 13:24:37,492 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:37,492 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] [2024-11-20 13:24:37,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 13:24:37,492 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:37,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:37,493 INFO L85 PathProgramCache]: Analyzing trace with hash -23629767, now seen corresponding path program 1 times [2024-11-20 13:24:37,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:37,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417813628] [2024-11-20 13:24:37,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:37,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:37,912 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 13:24:37,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:37,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417813628] [2024-11-20 13:24:37,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417813628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:37,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:37,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:24:37,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119004325] [2024-11-20 13:24:37,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:37,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:37,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:37,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:37,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:38,313 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 474 [2024-11-20 13:24:38,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 442 transitions, 935 flow. Second operand has 6 states, 6 states have (on average 358.1666666666667) internal successors, (2149), 6 states have internal predecessors, (2149), 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 13:24:38,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:38,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 474 [2024-11-20 13:24:38,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:38,653 INFO L124 PetriNetUnfolderBase]: 672/3379 cut-off events. [2024-11-20 13:24:38,653 INFO L125 PetriNetUnfolderBase]: For 206/206 co-relation queries the response was YES. [2024-11-20 13:24:38,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5181 conditions, 3379 events. 672/3379 cut-off events. For 206/206 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 23384 event pairs, 583 based on Foata normal form. 0/3154 useless extension candidates. Maximal degree in co-relation 4974. Up to 1453 conditions per place. [2024-11-20 13:24:38,664 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 122 selfloop transitions, 5 changer transitions 0/453 dead transitions. [2024-11-20 13:24:38,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 453 transitions, 1219 flow [2024-11-20 13:24:38,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:38,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:38,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2221 transitions. [2024-11-20 13:24:38,669 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7809423347398031 [2024-11-20 13:24:38,669 INFO L175 Difference]: Start difference. First operand has 444 places, 442 transitions, 935 flow. Second operand 6 states and 2221 transitions. [2024-11-20 13:24:38,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 453 transitions, 1219 flow [2024-11-20 13:24:38,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 453 transitions, 1209 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:24:38,680 INFO L231 Difference]: Finished difference. Result has 443 places, 441 transitions, 933 flow [2024-11-20 13:24:38,684 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=923, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=933, PETRI_PLACES=443, PETRI_TRANSITIONS=441} [2024-11-20 13:24:38,685 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -16 predicate places. [2024-11-20 13:24:38,685 INFO L471 AbstractCegarLoop]: Abstraction has has 443 places, 441 transitions, 933 flow [2024-11-20 13:24:38,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 358.1666666666667) internal successors, (2149), 6 states have internal predecessors, (2149), 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 13:24:38,685 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:38,685 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, 1, 1, 1, 1, 1] [2024-11-20 13:24:38,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 13:24:38,686 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:38,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:38,686 INFO L85 PathProgramCache]: Analyzing trace with hash 898136602, now seen corresponding path program 1 times [2024-11-20 13:24:38,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:38,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360679721] [2024-11-20 13:24:38,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:38,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:38,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:38,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:38,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360679721] [2024-11-20 13:24:38,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360679721] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:24:38,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653038090] [2024-11-20 13:24:38,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:38,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:24:38,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:24:38,824 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:24:38,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 13:24:39,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:39,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 13:24:39,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:24:39,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 13:24:39,047 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:24:39,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653038090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:39,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:24:39,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-20 13:24:39,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138255126] [2024-11-20 13:24:39,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:39,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:24:39,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:39,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:24:39,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:39,074 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 474 [2024-11-20 13:24:39,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 441 transitions, 933 flow. Second operand has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 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 13:24:39,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:39,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 474 [2024-11-20 13:24:39,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:39,208 INFO L124 PetriNetUnfolderBase]: 64/1688 cut-off events. [2024-11-20 13:24:39,209 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-20 13:24:39,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1892 conditions, 1688 events. 64/1688 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 7469 event pairs, 29 based on Foata normal form. 0/1598 useless extension candidates. Maximal degree in co-relation 1461. Up to 79 conditions per place. [2024-11-20 13:24:39,214 INFO L140 encePairwiseOnDemand]: 471/474 looper letters, 15 selfloop transitions, 2 changer transitions 0/443 dead transitions. [2024-11-20 13:24:39,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 443 transitions, 973 flow [2024-11-20 13:24:39,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:24:39,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:24:39,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1365 transitions. [2024-11-20 13:24:39,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.959915611814346 [2024-11-20 13:24:39,216 INFO L175 Difference]: Start difference. First operand has 443 places, 441 transitions, 933 flow. Second operand 3 states and 1365 transitions. [2024-11-20 13:24:39,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 443 transitions, 973 flow [2024-11-20 13:24:39,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 443 transitions, 963 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:24:39,221 INFO L231 Difference]: Finished difference. Result has 439 places, 440 transitions, 925 flow [2024-11-20 13:24:39,222 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=921, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=925, PETRI_PLACES=439, PETRI_TRANSITIONS=440} [2024-11-20 13:24:39,222 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -20 predicate places. [2024-11-20 13:24:39,222 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 440 transitions, 925 flow [2024-11-20 13:24:39,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 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 13:24:39,223 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:39,223 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:39,230 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 13:24:39,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:24:39,424 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:39,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:39,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1730636951, now seen corresponding path program 1 times [2024-11-20 13:24:39,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:39,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928026076] [2024-11-20 13:24:39,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:39,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:39,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:39,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:39,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928026076] [2024-11-20 13:24:39,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928026076] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:24:39,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056454412] [2024-11-20 13:24:39,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:39,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:24:39,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:24:39,547 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:24:39,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 13:24:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:39,786 INFO L255 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 13:24:39,789 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:24:39,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 13:24:39,803 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:24:39,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056454412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:39,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:24:39,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-20 13:24:39,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322463512] [2024-11-20 13:24:39,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:39,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:24:39,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:39,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:24:39,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:39,818 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 474 [2024-11-20 13:24:39,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 440 transitions, 925 flow. Second operand has 3 states, 3 states have (on average 451.0) internal successors, (1353), 3 states have internal predecessors, (1353), 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 13:24:39,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:39,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 474 [2024-11-20 13:24:39,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:40,108 INFO L124 PetriNetUnfolderBase]: 136/3370 cut-off events. [2024-11-20 13:24:40,108 INFO L125 PetriNetUnfolderBase]: For 41/48 co-relation queries the response was YES. [2024-11-20 13:24:40,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3669 conditions, 3370 events. 136/3370 cut-off events. For 41/48 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 22240 event pairs, 38 based on Foata normal form. 1/3116 useless extension candidates. Maximal degree in co-relation 3252. Up to 129 conditions per place. [2024-11-20 13:24:40,119 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 17 selfloop transitions, 7 changer transitions 1/448 dead transitions. [2024-11-20 13:24:40,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 448 transitions, 999 flow [2024-11-20 13:24:40,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:24:40,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:24:40,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1370 transitions. [2024-11-20 13:24:40,121 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9634317862165963 [2024-11-20 13:24:40,121 INFO L175 Difference]: Start difference. First operand has 439 places, 440 transitions, 925 flow. Second operand 3 states and 1370 transitions. [2024-11-20 13:24:40,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 448 transitions, 999 flow [2024-11-20 13:24:40,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 448 transitions, 995 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:24:40,126 INFO L231 Difference]: Finished difference. Result has 441 places, 445 transitions, 977 flow [2024-11-20 13:24:40,126 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=921, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=977, PETRI_PLACES=441, PETRI_TRANSITIONS=445} [2024-11-20 13:24:40,127 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -18 predicate places. [2024-11-20 13:24:40,127 INFO L471 AbstractCegarLoop]: Abstraction has has 441 places, 445 transitions, 977 flow [2024-11-20 13:24:40,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 451.0) internal successors, (1353), 3 states have internal predecessors, (1353), 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 13:24:40,127 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:40,128 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:24:40,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-20 13:24:40,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-20 13:24:40,330 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:40,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:40,331 INFO L85 PathProgramCache]: Analyzing trace with hash -2041604436, now seen corresponding path program 1 times [2024-11-20 13:24:40,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:40,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469463140] [2024-11-20 13:24:40,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:40,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:40,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:40,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:40,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469463140] [2024-11-20 13:24:40,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469463140] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:24:40,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588468510] [2024-11-20 13:24:40,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:40,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:24:40,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:24:40,468 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:24:40,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 13:24:40,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:40,678 INFO L255 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 13:24:40,685 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:24:40,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-20 13:24:40,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 13:24:40,753 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:24:40,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588468510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:40,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:24:40,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-20 13:24:40,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359425046] [2024-11-20 13:24:40,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:40,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:24:40,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:40,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:24:40,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:40,771 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 474 [2024-11-20 13:24:40,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 445 transitions, 977 flow. Second operand has 3 states, 3 states have (on average 457.0) internal successors, (1371), 3 states have internal predecessors, (1371), 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 13:24:40,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:40,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 474 [2024-11-20 13:24:40,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:40,896 INFO L124 PetriNetUnfolderBase]: 33/1428 cut-off events. [2024-11-20 13:24:40,896 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-20 13:24:40,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1543 conditions, 1428 events. 33/1428 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 5286 event pairs, 6 based on Foata normal form. 2/1356 useless extension candidates. Maximal degree in co-relation 1141. Up to 26 conditions per place. [2024-11-20 13:24:40,899 INFO L140 encePairwiseOnDemand]: 470/474 looper letters, 7 selfloop transitions, 3 changer transitions 5/438 dead transitions. [2024-11-20 13:24:40,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 438 transitions, 954 flow [2024-11-20 13:24:40,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:24:40,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:24:40,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1378 transitions. [2024-11-20 13:24:40,901 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9690576652601969 [2024-11-20 13:24:40,901 INFO L175 Difference]: Start difference. First operand has 441 places, 445 transitions, 977 flow. Second operand 3 states and 1378 transitions. [2024-11-20 13:24:40,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 438 transitions, 954 flow [2024-11-20 13:24:40,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 438 transitions, 934 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-20 13:24:40,906 INFO L231 Difference]: Finished difference. Result has 437 places, 431 transitions, 899 flow [2024-11-20 13:24:40,906 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=905, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=899, PETRI_PLACES=437, PETRI_TRANSITIONS=431} [2024-11-20 13:24:40,907 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -22 predicate places. [2024-11-20 13:24:40,907 INFO L471 AbstractCegarLoop]: Abstraction has has 437 places, 431 transitions, 899 flow [2024-11-20 13:24:40,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 457.0) internal successors, (1371), 3 states have internal predecessors, (1371), 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 13:24:40,907 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:40,908 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:24:40,915 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 13:24:41,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:24:41,113 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:41,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:41,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1909164341, now seen corresponding path program 1 times [2024-11-20 13:24:41,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:41,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365970921] [2024-11-20 13:24:41,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:41,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:41,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:41,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:41,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365970921] [2024-11-20 13:24:41,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365970921] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:24:41,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850224837] [2024-11-20 13:24:41,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:41,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:24:41,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:24:41,385 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:24:41,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 13:24:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:41,704 INFO L255 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 13:24:41,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:24:41,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:41,860 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:24:42,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:42,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850224837] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:24:42,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:24:42,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-20 13:24:42,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109668230] [2024-11-20 13:24:42,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:24:42,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 13:24:42,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:42,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 13:24:42,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-20 13:24:42,090 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 474 [2024-11-20 13:24:42,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 431 transitions, 899 flow. Second operand has 10 states, 10 states have (on average 452.2) internal successors, (4522), 10 states have internal predecessors, (4522), 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 13:24:42,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:42,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 474 [2024-11-20 13:24:42,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:42,395 INFO L124 PetriNetUnfolderBase]: 44/1399 cut-off events. [2024-11-20 13:24:42,396 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-20 13:24:42,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1557 conditions, 1399 events. 44/1399 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3402 event pairs, 10 based on Foata normal form. 4/1326 useless extension candidates. Maximal degree in co-relation 986. Up to 35 conditions per place. [2024-11-20 13:24:42,408 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 20 selfloop transitions, 9 changer transitions 0/446 dead transitions. [2024-11-20 13:24:42,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 446 transitions, 1003 flow [2024-11-20 13:24:42,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:24:42,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:24:42,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4081 transitions. [2024-11-20 13:24:42,414 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9566338490389124 [2024-11-20 13:24:42,414 INFO L175 Difference]: Start difference. First operand has 437 places, 431 transitions, 899 flow. Second operand 9 states and 4081 transitions. [2024-11-20 13:24:42,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 446 transitions, 1003 flow [2024-11-20 13:24:42,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 446 transitions, 994 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-20 13:24:42,424 INFO L231 Difference]: Finished difference. Result has 441 places, 437 transitions, 940 flow [2024-11-20 13:24:42,424 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=940, PETRI_PLACES=441, PETRI_TRANSITIONS=437} [2024-11-20 13:24:42,425 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -18 predicate places. [2024-11-20 13:24:42,425 INFO L471 AbstractCegarLoop]: Abstraction has has 441 places, 437 transitions, 940 flow [2024-11-20 13:24:42,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 452.2) internal successors, (4522), 10 states have internal predecessors, (4522), 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 13:24:42,429 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:42,430 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:24:42,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 13:24:42,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:24:42,632 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:42,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:42,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1220071571, now seen corresponding path program 2 times [2024-11-20 13:24:42,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:42,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879676885] [2024-11-20 13:24:42,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:42,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:43,139 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:43,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:43,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879676885] [2024-11-20 13:24:43,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879676885] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:24:43,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862969109] [2024-11-20 13:24:43,143 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 13:24:43,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:24:43,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:24:43,225 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:24:43,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 13:24:43,610 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 13:24:43,611 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:24:43,616 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-20 13:24:43,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:24:43,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-20 13:24:43,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-11-20 13:24:43,703 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:24:43,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2024-11-20 13:24:43,743 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:24:43,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2024-11-20 13:24:43,780 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-11-20 13:24:43,780 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:24:43,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862969109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:43,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:24:43,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-20 13:24:43,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808273862] [2024-11-20 13:24:43,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:43,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:43,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:43,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:43,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-20 13:24:44,555 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 404 out of 474 [2024-11-20 13:24:44,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 437 transitions, 940 flow. Second operand has 6 states, 6 states have (on average 410.6666666666667) internal successors, (2464), 6 states have internal predecessors, (2464), 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 13:24:44,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:44,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 404 of 474 [2024-11-20 13:24:44,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:44,794 INFO L124 PetriNetUnfolderBase]: 130/1477 cut-off events. [2024-11-20 13:24:44,795 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2024-11-20 13:24:44,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2013 conditions, 1477 events. 130/1477 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 4528 event pairs, 95 based on Foata normal form. 0/1405 useless extension candidates. Maximal degree in co-relation 1266. Up to 303 conditions per place. [2024-11-20 13:24:44,801 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 57 selfloop transitions, 5 changer transitions 0/440 dead transitions. [2024-11-20 13:24:44,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 440 transitions, 1074 flow [2024-11-20 13:24:44,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:44,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:44,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2487 transitions. [2024-11-20 13:24:44,805 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8744725738396625 [2024-11-20 13:24:44,805 INFO L175 Difference]: Start difference. First operand has 441 places, 437 transitions, 940 flow. Second operand 6 states and 2487 transitions. [2024-11-20 13:24:44,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 440 transitions, 1074 flow [2024-11-20 13:24:44,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 440 transitions, 1068 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-20 13:24:44,818 INFO L231 Difference]: Finished difference. Result has 444 places, 436 transitions, 942 flow [2024-11-20 13:24:44,818 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=932, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=942, PETRI_PLACES=444, PETRI_TRANSITIONS=436} [2024-11-20 13:24:44,819 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -15 predicate places. [2024-11-20 13:24:44,819 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 436 transitions, 942 flow [2024-11-20 13:24:44,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 410.6666666666667) internal successors, (2464), 6 states have internal predecessors, (2464), 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 13:24:44,819 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:44,820 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:24:44,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 13:24:45,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-20 13:24:45,024 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t2Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:45,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:45,025 INFO L85 PathProgramCache]: Analyzing trace with hash -679567721, now seen corresponding path program 1 times [2024-11-20 13:24:45,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:45,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800516979] [2024-11-20 13:24:45,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:45,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:45,323 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:45,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:45,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800516979] [2024-11-20 13:24:45,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800516979] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:24:45,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539085767] [2024-11-20 13:24:45,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:45,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:24:45,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:24:45,327 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:24:45,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 13:24:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:45,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 1218 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 13:24:45,636 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:24:45,868 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:45,868 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:24:46,117 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:46,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539085767] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:24:46,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:24:46,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-20 13:24:46,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71722409] [2024-11-20 13:24:46,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:24:46,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-20 13:24:46,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:46,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-20 13:24:46,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-20 13:24:46,194 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 474 [2024-11-20 13:24:46,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 436 transitions, 942 flow. Second operand has 18 states, 18 states have (on average 452.1111111111111) internal successors, (8138), 18 states have internal predecessors, (8138), 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 13:24:46,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:46,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 474 [2024-11-20 13:24:46,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:46,764 INFO L124 PetriNetUnfolderBase]: 70/2163 cut-off events. [2024-11-20 13:24:46,764 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-11-20 13:24:46,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2489 conditions, 2163 events. 70/2163 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 4869 event pairs, 10 based on Foata normal form. 8/2090 useless extension candidates. Maximal degree in co-relation 1897. Up to 35 conditions per place. [2024-11-20 13:24:46,770 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 36 selfloop transitions, 21 changer transitions 0/473 dead transitions. [2024-11-20 13:24:46,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 473 transitions, 1220 flow [2024-11-20 13:24:46,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-20 13:24:46,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-20 13:24:46,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 9511 transitions. [2024-11-20 13:24:46,775 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9554952782800884 [2024-11-20 13:24:46,775 INFO L175 Difference]: Start difference. First operand has 444 places, 436 transitions, 942 flow. Second operand 21 states and 9511 transitions. [2024-11-20 13:24:46,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 473 transitions, 1220 flow [2024-11-20 13:24:46,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 473 transitions, 1210 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:24:46,781 INFO L231 Difference]: Finished difference. Result has 464 places, 449 transitions, 1062 flow [2024-11-20 13:24:46,781 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=932, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1062, PETRI_PLACES=464, PETRI_TRANSITIONS=449} [2024-11-20 13:24:46,781 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, 5 predicate places. [2024-11-20 13:24:46,782 INFO L471 AbstractCegarLoop]: Abstraction has has 464 places, 449 transitions, 1062 flow [2024-11-20 13:24:46,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 452.1111111111111) internal successors, (8138), 18 states have internal predecessors, (8138), 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 13:24:46,784 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:46,784 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:24:46,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-20 13:24:46,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:24:46,986 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting t2Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:46,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:46,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1767781527, now seen corresponding path program 2 times [2024-11-20 13:24:46,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:46,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566647569] [2024-11-20 13:24:46,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:46,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:48,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1582 backedges. 0 proven. 1582 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:48,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:48,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566647569] [2024-11-20 13:24:48,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566647569] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:24:48,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409961247] [2024-11-20 13:24:48,175 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 13:24:48,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:24:48,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:24:48,177 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:24:48,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-20 13:24:48,514 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 13:24:48,515 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:24:48,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-20 13:24:48,529 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:24:48,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-20 13:24:48,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-11-20 13:24:48,610 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:24:48,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2024-11-20 13:24:48,640 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:24:48,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2024-11-20 13:24:48,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1582 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1582 trivial. 0 not checked. [2024-11-20 13:24:48,666 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:24:48,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409961247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:48,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:24:48,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-20 13:24:48,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118354936] [2024-11-20 13:24:48,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:48,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:24:48,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:48,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:24:48,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-20 13:24:49,306 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 404 out of 474 [2024-11-20 13:24:49,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 449 transitions, 1062 flow. Second operand has 6 states, 6 states have (on average 410.6666666666667) internal successors, (2464), 6 states have internal predecessors, (2464), 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 13:24:49,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:49,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 404 of 474 [2024-11-20 13:24:49,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:49,710 INFO L124 PetriNetUnfolderBase]: 218/2305 cut-off events. [2024-11-20 13:24:49,710 INFO L125 PetriNetUnfolderBase]: For 123/123 co-relation queries the response was YES. [2024-11-20 13:24:49,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3362 conditions, 2305 events. 218/2305 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 6841 event pairs, 175 based on Foata normal form. 0/2229 useless extension candidates. Maximal degree in co-relation 2614. Up to 543 conditions per place. [2024-11-20 13:24:49,719 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 57 selfloop transitions, 5 changer transitions 0/452 dead transitions. [2024-11-20 13:24:49,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 452 transitions, 1196 flow [2024-11-20 13:24:49,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:24:49,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:24:49,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2487 transitions. [2024-11-20 13:24:49,722 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8744725738396625 [2024-11-20 13:24:49,722 INFO L175 Difference]: Start difference. First operand has 464 places, 449 transitions, 1062 flow. Second operand 6 states and 2487 transitions. [2024-11-20 13:24:49,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 452 transitions, 1196 flow [2024-11-20 13:24:49,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 452 transitions, 1172 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-20 13:24:49,729 INFO L231 Difference]: Finished difference. Result has 462 places, 448 transitions, 1046 flow [2024-11-20 13:24:49,729 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=1036, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1046, PETRI_PLACES=462, PETRI_TRANSITIONS=448} [2024-11-20 13:24:49,730 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, 3 predicate places. [2024-11-20 13:24:49,730 INFO L471 AbstractCegarLoop]: Abstraction has has 462 places, 448 transitions, 1046 flow [2024-11-20 13:24:49,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 410.6666666666667) internal successors, (2464), 6 states have internal predecessors, (2464), 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 13:24:49,735 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:49,735 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:24:49,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-20 13:24:49,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:24:49,940 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:49,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:49,941 INFO L85 PathProgramCache]: Analyzing trace with hash -695389874, now seen corresponding path program 1 times [2024-11-20 13:24:49,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:49,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88282914] [2024-11-20 13:24:49,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:49,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:50,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1583 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1582 trivial. 0 not checked. [2024-11-20 13:24:50,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:50,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88282914] [2024-11-20 13:24:50,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88282914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:50,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:24:50,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 13:24:50,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316888734] [2024-11-20 13:24:50,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:50,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 13:24:50,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:50,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 13:24:50,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 13:24:50,404 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 474 [2024-11-20 13:24:50,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 448 transitions, 1046 flow. Second operand has 4 states, 4 states have (on average 452.5) internal successors, (1810), 4 states have internal predecessors, (1810), 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 13:24:50,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:50,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 474 [2024-11-20 13:24:50,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:50,805 INFO L124 PetriNetUnfolderBase]: 60/2597 cut-off events. [2024-11-20 13:24:50,805 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2024-11-20 13:24:50,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2885 conditions, 2597 events. 60/2597 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 8012 event pairs, 17 based on Foata normal form. 4/2481 useless extension candidates. Maximal degree in co-relation 1943. Up to 59 conditions per place. [2024-11-20 13:24:50,814 INFO L140 encePairwiseOnDemand]: 469/474 looper letters, 14 selfloop transitions, 4 changer transitions 0/453 dead transitions. [2024-11-20 13:24:50,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 453 transitions, 1094 flow [2024-11-20 13:24:50,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 13:24:50,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 13:24:50,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1819 transitions. [2024-11-20 13:24:50,815 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9593881856540084 [2024-11-20 13:24:50,816 INFO L175 Difference]: Start difference. First operand has 462 places, 448 transitions, 1046 flow. Second operand 4 states and 1819 transitions. [2024-11-20 13:24:50,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 453 transitions, 1094 flow [2024-11-20 13:24:50,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 453 transitions, 1084 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:24:50,823 INFO L231 Difference]: Finished difference. Result has 462 places, 451 transitions, 1064 flow [2024-11-20 13:24:50,823 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=1036, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1064, PETRI_PLACES=462, PETRI_TRANSITIONS=451} [2024-11-20 13:24:50,824 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, 3 predicate places. [2024-11-20 13:24:50,824 INFO L471 AbstractCegarLoop]: Abstraction has has 462 places, 451 transitions, 1064 flow [2024-11-20 13:24:50,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 452.5) internal successors, (1810), 4 states have internal predecessors, (1810), 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 13:24:50,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:50,825 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:24:50,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-20 13:24:50,825 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:50,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:50,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1973009200, now seen corresponding path program 1 times [2024-11-20 13:24:50,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:50,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714528263] [2024-11-20 13:24:50,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:50,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:50,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:51,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1583 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1582 trivial. 0 not checked. [2024-11-20 13:24:51,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:51,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714528263] [2024-11-20 13:24:51,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714528263] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:24:51,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538350069] [2024-11-20 13:24:51,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:51,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:24:51,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:24:51,335 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:24:51,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-20 13:24:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:51,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 2218 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 13:24:51,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:24:51,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1583 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1583 trivial. 0 not checked. [2024-11-20 13:24:51,982 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:24:51,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538350069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:24:51,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:24:51,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-20 13:24:51,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280591998] [2024-11-20 13:24:51,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:24:51,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:24:51,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:51,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:24:51,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:24:52,005 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 474 [2024-11-20 13:24:52,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 451 transitions, 1064 flow. Second operand has 3 states, 3 states have (on average 452.6666666666667) internal successors, (1358), 3 states have internal predecessors, (1358), 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 13:24:52,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:52,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 474 [2024-11-20 13:24:52,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:52,798 INFO L124 PetriNetUnfolderBase]: 53/2586 cut-off events. [2024-11-20 13:24:52,802 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2024-11-20 13:24:52,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2873 conditions, 2586 events. 53/2586 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 7876 event pairs, 12 based on Foata normal form. 0/2470 useless extension candidates. Maximal degree in co-relation 2354. Up to 44 conditions per place. [2024-11-20 13:24:52,821 INFO L140 encePairwiseOnDemand]: 471/474 looper letters, 12 selfloop transitions, 2 changer transitions 0/451 dead transitions. [2024-11-20 13:24:52,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 451 transitions, 1093 flow [2024-11-20 13:24:52,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:24:52,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:24:52,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1362 transitions. [2024-11-20 13:24:52,826 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9578059071729957 [2024-11-20 13:24:52,827 INFO L175 Difference]: Start difference. First operand has 462 places, 451 transitions, 1064 flow. Second operand 3 states and 1362 transitions. [2024-11-20 13:24:52,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 451 transitions, 1093 flow [2024-11-20 13:24:52,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 451 transitions, 1091 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:24:52,841 INFO L231 Difference]: Finished difference. Result has 462 places, 450 transitions, 1064 flow [2024-11-20 13:24:52,842 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=1060, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1064, PETRI_PLACES=462, PETRI_TRANSITIONS=450} [2024-11-20 13:24:52,842 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, 3 predicate places. [2024-11-20 13:24:52,843 INFO L471 AbstractCegarLoop]: Abstraction has has 462 places, 450 transitions, 1064 flow [2024-11-20 13:24:52,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 452.6666666666667) internal successors, (1358), 3 states have internal predecessors, (1358), 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 13:24:52,843 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:52,843 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:24:52,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-20 13:24:53,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-20 13:24:53,044 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:53,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:53,045 INFO L85 PathProgramCache]: Analyzing trace with hash 551827246, now seen corresponding path program 1 times [2024-11-20 13:24:53,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:53,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75915647] [2024-11-20 13:24:53,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:53,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:54,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1582 backedges. 0 proven. 1582 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:54,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:24:54,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75915647] [2024-11-20 13:24:54,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75915647] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:24:54,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032238855] [2024-11-20 13:24:54,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:54,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:24:54,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:24:54,046 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:24:54,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-20 13:24:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:24:54,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 2232 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-20 13:24:54,773 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:24:55,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1582 backedges. 0 proven. 1582 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:55,431 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:24:56,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1582 backedges. 0 proven. 1582 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:24:56,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032238855] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:24:56,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:24:56,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-20 13:24:56,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896698791] [2024-11-20 13:24:56,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:24:56,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-20 13:24:56,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:24:56,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-20 13:24:56,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-20 13:24:56,487 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 474 [2024-11-20 13:24:56,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 450 transitions, 1064 flow. Second operand has 34 states, 34 states have (on average 452.05882352941177) internal successors, (15370), 34 states have internal predecessors, (15370), 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 13:24:56,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:24:56,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 474 [2024-11-20 13:24:56,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:24:58,372 INFO L124 PetriNetUnfolderBase]: 122/4145 cut-off events. [2024-11-20 13:24:58,372 INFO L125 PetriNetUnfolderBase]: For 578/578 co-relation queries the response was YES. [2024-11-20 13:24:58,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4896 conditions, 4145 events. 122/4145 cut-off events. For 578/578 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 11116 event pairs, 10 based on Foata normal form. 16/4028 useless extension candidates. Maximal degree in co-relation 4835. Up to 67 conditions per place. [2024-11-20 13:24:58,395 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 68 selfloop transitions, 45 changer transitions 0/530 dead transitions. [2024-11-20 13:24:58,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 530 transitions, 1734 flow [2024-11-20 13:24:58,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-20 13:24:58,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-11-20 13:24:58,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 20371 transitions. [2024-11-20 13:24:58,420 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9550398499765589 [2024-11-20 13:24:58,424 INFO L175 Difference]: Start difference. First operand has 462 places, 450 transitions, 1064 flow. Second operand 45 states and 20371 transitions. [2024-11-20 13:24:58,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 506 places, 530 transitions, 1734 flow [2024-11-20 13:24:58,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 530 transitions, 1730 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:24:58,441 INFO L231 Difference]: Finished difference. Result has 513 places, 475 transitions, 1362 flow [2024-11-20 13:24:58,442 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=1060, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=1362, PETRI_PLACES=513, PETRI_TRANSITIONS=475} [2024-11-20 13:24:58,449 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, 54 predicate places. [2024-11-20 13:24:58,450 INFO L471 AbstractCegarLoop]: Abstraction has has 513 places, 475 transitions, 1362 flow [2024-11-20 13:24:58,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 452.05882352941177) internal successors, (15370), 34 states have internal predecessors, (15370), 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 13:24:58,456 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:24:58,457 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:24:58,482 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-20 13:24:58,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-20 13:24:58,658 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:24:58,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:24:58,658 INFO L85 PathProgramCache]: Analyzing trace with hash -36458770, now seen corresponding path program 2 times [2024-11-20 13:24:58,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:24:58,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862298685] [2024-11-20 13:24:58,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:24:58,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:24:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:02,545 INFO L134 CoverageAnalysis]: Checked inductivity of 7890 backedges. 0 proven. 7890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:02,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:02,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862298685] [2024-11-20 13:25:02,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862298685] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:25:02,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197129891] [2024-11-20 13:25:02,549 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 13:25:02,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:25:02,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:25:02,552 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:25:02,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-20 13:25:03,489 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 13:25:03,489 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:25:03,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-20 13:25:03,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:25:03,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-20 13:25:03,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-11-20 13:25:03,598 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:25:03,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2024-11-20 13:25:03,634 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:25:03,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2024-11-20 13:25:03,675 INFO L134 CoverageAnalysis]: Checked inductivity of 7890 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7890 trivial. 0 not checked. [2024-11-20 13:25:03,675 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:25:03,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197129891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:03,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:25:03,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2024-11-20 13:25:03,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113655484] [2024-11-20 13:25:03,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:03,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:25:03,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:03,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:25:03,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1030, Unknown=0, NotChecked=0, Total=1332 [2024-11-20 13:25:04,396 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 394 out of 474 [2024-11-20 13:25:04,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 475 transitions, 1362 flow. Second operand has 6 states, 6 states have (on average 400.6666666666667) internal successors, (2404), 6 states have internal predecessors, (2404), 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 13:25:04,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:04,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 394 of 474 [2024-11-20 13:25:04,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:05,640 INFO L124 PetriNetUnfolderBase]: 466/4463 cut-off events. [2024-11-20 13:25:05,640 INFO L125 PetriNetUnfolderBase]: For 577/577 co-relation queries the response was YES. [2024-11-20 13:25:05,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6885 conditions, 4463 events. 466/4463 cut-off events. For 577/577 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 15461 event pairs, 353 based on Foata normal form. 0/4371 useless extension candidates. Maximal degree in co-relation 5450. Up to 1085 conditions per place. [2024-11-20 13:25:05,661 INFO L140 encePairwiseOnDemand]: 465/474 looper letters, 64 selfloop transitions, 6 changer transitions 0/476 dead transitions. [2024-11-20 13:25:05,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 515 places, 476 transitions, 1508 flow [2024-11-20 13:25:05,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:25:05,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:25:05,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2437 transitions. [2024-11-20 13:25:05,663 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8568917018284107 [2024-11-20 13:25:05,663 INFO L175 Difference]: Start difference. First operand has 513 places, 475 transitions, 1362 flow. Second operand 6 states and 2437 transitions. [2024-11-20 13:25:05,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 515 places, 476 transitions, 1508 flow [2024-11-20 13:25:05,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 497 places, 476 transitions, 1452 flow, removed 10 selfloop flow, removed 18 redundant places. [2024-11-20 13:25:05,684 INFO L231 Difference]: Finished difference. Result has 497 places, 472 transitions, 1312 flow [2024-11-20 13:25:05,687 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=1300, PETRI_DIFFERENCE_MINUEND_PLACES=492, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1312, PETRI_PLACES=497, PETRI_TRANSITIONS=472} [2024-11-20 13:25:05,687 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, 38 predicate places. [2024-11-20 13:25:05,687 INFO L471 AbstractCegarLoop]: Abstraction has has 497 places, 472 transitions, 1312 flow [2024-11-20 13:25:05,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 400.6666666666667) internal successors, (2404), 6 states have internal predecessors, (2404), 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 13:25:05,688 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:05,688 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:25:05,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-20 13:25:05,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:25:05,890 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting t2Err13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:25:05,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:05,890 INFO L85 PathProgramCache]: Analyzing trace with hash 963577652, now seen corresponding path program 1 times [2024-11-20 13:25:05,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:05,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380580643] [2024-11-20 13:25:05,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:05,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:06,771 INFO L134 CoverageAnalysis]: Checked inductivity of 7891 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7890 trivial. 0 not checked. [2024-11-20 13:25:06,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:06,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380580643] [2024-11-20 13:25:06,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380580643] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:25:06,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426143165] [2024-11-20 13:25:06,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:06,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:25:06,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:25:06,776 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:25:06,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-20 13:25:07,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:07,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 4154 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 13:25:07,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:25:07,819 INFO L134 CoverageAnalysis]: Checked inductivity of 7891 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7891 trivial. 0 not checked. [2024-11-20 13:25:07,825 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:25:07,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426143165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:07,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:25:07,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-20 13:25:07,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289205238] [2024-11-20 13:25:07,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:07,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:25:07,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:07,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:25:07,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:25:07,847 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 474 [2024-11-20 13:25:07,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 497 places, 472 transitions, 1312 flow. Second operand has 3 states, 3 states have (on average 452.6666666666667) internal successors, (1358), 3 states have internal predecessors, (1358), 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 13:25:07,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:07,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 474 [2024-11-20 13:25:07,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:08,785 INFO L124 PetriNetUnfolderBase]: 67/4060 cut-off events. [2024-11-20 13:25:08,785 INFO L125 PetriNetUnfolderBase]: For 530/530 co-relation queries the response was YES. [2024-11-20 13:25:08,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4665 conditions, 4060 events. 67/4060 cut-off events. For 530/530 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 10119 event pairs, 10 based on Foata normal form. 0/3956 useless extension candidates. Maximal degree in co-relation 3825. Up to 60 conditions per place. [2024-11-20 13:25:08,808 INFO L140 encePairwiseOnDemand]: 471/474 looper letters, 9 selfloop transitions, 0 changer transitions 5/472 dead transitions. [2024-11-20 13:25:08,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 472 transitions, 1341 flow [2024-11-20 13:25:08,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:25:08,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:25:08,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1362 transitions. [2024-11-20 13:25:08,814 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9578059071729957 [2024-11-20 13:25:08,814 INFO L175 Difference]: Start difference. First operand has 497 places, 472 transitions, 1312 flow. Second operand 3 states and 1362 transitions. [2024-11-20 13:25:08,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 472 transitions, 1341 flow [2024-11-20 13:25:08,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 472 transitions, 1329 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:25:08,834 INFO L231 Difference]: Finished difference. Result has 493 places, 467 transitions, 1290 flow [2024-11-20 13:25:08,834 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=1298, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1290, PETRI_PLACES=493, PETRI_TRANSITIONS=467} [2024-11-20 13:25:08,834 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, 34 predicate places. [2024-11-20 13:25:08,835 INFO L471 AbstractCegarLoop]: Abstraction has has 493 places, 467 transitions, 1290 flow [2024-11-20 13:25:08,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 452.6666666666667) internal successors, (1358), 3 states have internal predecessors, (1358), 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 13:25:08,835 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:08,835 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:25:08,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-20 13:25:09,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-20 13:25:09,036 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting t2Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:25:09,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:09,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1346423538, now seen corresponding path program 1 times [2024-11-20 13:25:09,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:09,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763156682] [2024-11-20 13:25:09,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:09,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:09,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:12,257 INFO L134 CoverageAnalysis]: Checked inductivity of 7890 backedges. 0 proven. 7890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:12,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:12,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763156682] [2024-11-20 13:25:12,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763156682] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:25:12,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963452609] [2024-11-20 13:25:12,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:12,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:25:12,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:25:12,260 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 13:25:12,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-20 13:25:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:13,357 INFO L255 TraceCheckSpWp]: Trace formula consists of 4186 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-20 13:25:13,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:25:14,735 INFO L134 CoverageAnalysis]: Checked inductivity of 7890 backedges. 0 proven. 7890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:14,735 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:25:16,134 INFO L134 CoverageAnalysis]: Checked inductivity of 7890 backedges. 0 proven. 7890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:25:16,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963452609] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 13:25:16,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 13:25:16,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 43 [2024-11-20 13:25:16,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022006292] [2024-11-20 13:25:16,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 13:25:16,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-20 13:25:16,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:16,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-20 13:25:16,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=483, Invalid=1323, Unknown=0, NotChecked=0, Total=1806 [2024-11-20 13:25:16,337 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 474 [2024-11-20 13:25:16,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 467 transitions, 1290 flow. Second operand has 43 states, 43 states have (on average 452.09302325581393) internal successors, (19440), 43 states have internal predecessors, (19440), 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 13:25:16,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:16,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 474 [2024-11-20 13:25:16,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:19,188 INFO L124 PetriNetUnfolderBase]: 150/5061 cut-off events. [2024-11-20 13:25:19,188 INFO L125 PetriNetUnfolderBase]: For 1840/1840 co-relation queries the response was YES. [2024-11-20 13:25:19,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6163 conditions, 5061 events. 150/5061 cut-off events. For 1840/1840 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 12616 event pairs, 10 based on Foata normal form. 10/4956 useless extension candidates. Maximal degree in co-relation 6137. Up to 87 conditions per place. [2024-11-20 13:25:19,215 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 88 selfloop transitions, 60 changer transitions 0/557 dead transitions. [2024-11-20 13:25:19,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 548 places, 557 transitions, 2134 flow [2024-11-20 13:25:19,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-20 13:25:19,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2024-11-20 13:25:19,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 27153 transitions. [2024-11-20 13:25:19,239 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.954746835443038 [2024-11-20 13:25:19,240 INFO L175 Difference]: Start difference. First operand has 493 places, 467 transitions, 1290 flow. Second operand 60 states and 27153 transitions. [2024-11-20 13:25:19,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 548 places, 557 transitions, 2134 flow [2024-11-20 13:25:19,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 548 places, 557 transitions, 2134 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:25:19,263 INFO L231 Difference]: Finished difference. Result has 554 places, 483 transitions, 1584 flow [2024-11-20 13:25:19,264 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=1290, PETRI_DIFFERENCE_MINUEND_PLACES=489, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=60, PETRI_FLOW=1584, PETRI_PLACES=554, PETRI_TRANSITIONS=483} [2024-11-20 13:25:19,265 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, 95 predicate places. [2024-11-20 13:25:19,265 INFO L471 AbstractCegarLoop]: Abstraction has has 554 places, 483 transitions, 1584 flow [2024-11-20 13:25:19,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 452.09302325581393) internal successors, (19440), 43 states have internal predecessors, (19440), 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 13:25:19,270 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:19,271 INFO L204 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:25:19,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-20 13:25:19,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-20 13:25:19,472 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting t2Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:25:19,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:19,472 INFO L85 PathProgramCache]: Analyzing trace with hash 929895478, now seen corresponding path program 2 times [2024-11-20 13:25:19,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:19,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591902888] [2024-11-20 13:25:19,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:19,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:23,722 INFO L134 CoverageAnalysis]: Checked inductivity of 14270 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14270 trivial. 0 not checked. [2024-11-20 13:25:23,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:23,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591902888] [2024-11-20 13:25:23,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591902888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:23,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:23,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:25:23,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254862382] [2024-11-20 13:25:23,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:23,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:25:23,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:23,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:25:23,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:25:24,520 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 402 out of 474 [2024-11-20 13:25:24,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 554 places, 483 transitions, 1584 flow. Second operand has 6 states, 6 states have (on average 408.8333333333333) internal successors, (2453), 6 states have internal predecessors, (2453), 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 13:25:24,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:24,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 402 of 474 [2024-11-20 13:25:24,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:26,428 INFO L124 PetriNetUnfolderBase]: 554/5455 cut-off events. [2024-11-20 13:25:26,428 INFO L125 PetriNetUnfolderBase]: For 1115/1115 co-relation queries the response was YES. [2024-11-20 13:25:26,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8578 conditions, 5455 events. 554/5455 cut-off events. For 1115/1115 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 17925 event pairs, 473 based on Foata normal form. 0/5349 useless extension candidates. Maximal degree in co-relation 8546. Up to 1437 conditions per place. [2024-11-20 13:25:26,458 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 59 selfloop transitions, 5 changer transitions 0/486 dead transitions. [2024-11-20 13:25:26,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 558 places, 486 transitions, 1722 flow [2024-11-20 13:25:26,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:25:26,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:25:26,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2477 transitions. [2024-11-20 13:25:26,460 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8709563994374121 [2024-11-20 13:25:26,460 INFO L175 Difference]: Start difference. First operand has 554 places, 483 transitions, 1584 flow. Second operand 6 states and 2477 transitions. [2024-11-20 13:25:26,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 558 places, 486 transitions, 1722 flow [2024-11-20 13:25:26,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 486 transitions, 1624 flow, removed 7 selfloop flow, removed 42 redundant places. [2024-11-20 13:25:26,478 INFO L231 Difference]: Finished difference. Result has 516 places, 482 transitions, 1494 flow [2024-11-20 13:25:26,479 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=1484, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=482, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1494, PETRI_PLACES=516, PETRI_TRANSITIONS=482} [2024-11-20 13:25:26,479 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, 57 predicate places. [2024-11-20 13:25:26,480 INFO L471 AbstractCegarLoop]: Abstraction has has 516 places, 482 transitions, 1494 flow [2024-11-20 13:25:26,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 408.8333333333333) internal successors, (2453), 6 states have internal predecessors, (2453), 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 13:25:26,480 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:26,481 INFO L204 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:25:26,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-20 13:25:26,482 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting t2Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:25:26,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:26,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1653292188, now seen corresponding path program 1 times [2024-11-20 13:25:26,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:26,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495169549] [2024-11-20 13:25:26,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:26,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:30,332 INFO L134 CoverageAnalysis]: Checked inductivity of 14270 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14270 trivial. 0 not checked. [2024-11-20 13:25:30,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:30,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495169549] [2024-11-20 13:25:30,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495169549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:30,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:30,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:25:30,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253570183] [2024-11-20 13:25:30,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:30,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:25:30,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:30,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:25:30,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:25:31,062 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 474 [2024-11-20 13:25:31,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 482 transitions, 1494 flow. Second operand has 6 states, 6 states have (on average 417.6666666666667) internal successors, (2506), 6 states have internal predecessors, (2506), 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 13:25:31,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:31,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 474 [2024-11-20 13:25:31,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:32,793 INFO L124 PetriNetUnfolderBase]: 518/5411 cut-off events. [2024-11-20 13:25:32,794 INFO L125 PetriNetUnfolderBase]: For 1087/1087 co-relation queries the response was YES. [2024-11-20 13:25:32,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8369 conditions, 5411 events. 518/5411 cut-off events. For 1087/1087 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 17417 event pairs, 437 based on Foata normal form. 0/5321 useless extension candidates. Maximal degree in co-relation 8336. Up to 1329 conditions per place. [2024-11-20 13:25:32,824 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 50 selfloop transitions, 5 changer transitions 0/485 dead transitions. [2024-11-20 13:25:32,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 485 transitions, 1614 flow [2024-11-20 13:25:32,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:25:32,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:25:32,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2522 transitions. [2024-11-20 13:25:32,826 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8867791842475387 [2024-11-20 13:25:32,830 INFO L175 Difference]: Start difference. First operand has 516 places, 482 transitions, 1494 flow. Second operand 6 states and 2522 transitions. [2024-11-20 13:25:32,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 485 transitions, 1614 flow [2024-11-20 13:25:32,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 485 transitions, 1604 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:25:32,848 INFO L231 Difference]: Finished difference. Result has 515 places, 481 transitions, 1492 flow [2024-11-20 13:25:32,849 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=1482, PETRI_DIFFERENCE_MINUEND_PLACES=510, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=476, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1492, PETRI_PLACES=515, PETRI_TRANSITIONS=481} [2024-11-20 13:25:32,853 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, 56 predicate places. [2024-11-20 13:25:32,853 INFO L471 AbstractCegarLoop]: Abstraction has has 515 places, 481 transitions, 1492 flow [2024-11-20 13:25:32,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 417.6666666666667) internal successors, (2506), 6 states have internal predecessors, (2506), 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 13:25:32,854 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:32,854 INFO L204 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:25:32,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-20 13:25:32,854 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting t2Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:25:32,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:32,855 INFO L85 PathProgramCache]: Analyzing trace with hash 537660881, now seen corresponding path program 1 times [2024-11-20 13:25:32,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:32,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168800709] [2024-11-20 13:25:32,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:32,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:36,634 INFO L134 CoverageAnalysis]: Checked inductivity of 14270 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14270 trivial. 0 not checked. [2024-11-20 13:25:36,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:36,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168800709] [2024-11-20 13:25:36,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168800709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:36,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:36,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:25:36,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235406650] [2024-11-20 13:25:36,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:36,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:25:36,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:36,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:25:36,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:25:37,058 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 474 [2024-11-20 13:25:37,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 481 transitions, 1492 flow. Second operand has 6 states, 6 states have (on average 382.0) internal successors, (2292), 6 states have internal predecessors, (2292), 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 13:25:37,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:37,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 474 [2024-11-20 13:25:37,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:25:39,184 INFO L124 PetriNetUnfolderBase]: 894/5779 cut-off events. [2024-11-20 13:25:39,185 INFO L125 PetriNetUnfolderBase]: For 1151/1151 co-relation queries the response was YES. [2024-11-20 13:25:39,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10513 conditions, 5779 events. 894/5779 cut-off events. For 1151/1151 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 22273 event pairs, 813 based on Foata normal form. 0/5689 useless extension candidates. Maximal degree in co-relation 10480. Up to 2465 conditions per place. [2024-11-20 13:25:39,217 INFO L140 encePairwiseOnDemand]: 468/474 looper letters, 92 selfloop transitions, 5 changer transitions 0/484 dead transitions. [2024-11-20 13:25:39,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 484 transitions, 1696 flow [2024-11-20 13:25:39,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:25:39,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:25:39,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2312 transitions. [2024-11-20 13:25:39,219 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8129395218002813 [2024-11-20 13:25:39,219 INFO L175 Difference]: Start difference. First operand has 515 places, 481 transitions, 1492 flow. Second operand 6 states and 2312 transitions. [2024-11-20 13:25:39,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 484 transitions, 1696 flow [2024-11-20 13:25:39,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 484 transitions, 1686 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:25:39,234 INFO L231 Difference]: Finished difference. Result has 514 places, 480 transitions, 1490 flow [2024-11-20 13:25:39,235 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=1480, PETRI_DIFFERENCE_MINUEND_PLACES=509, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=475, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1490, PETRI_PLACES=514, PETRI_TRANSITIONS=480} [2024-11-20 13:25:39,236 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, 55 predicate places. [2024-11-20 13:25:39,236 INFO L471 AbstractCegarLoop]: Abstraction has has 514 places, 480 transitions, 1490 flow [2024-11-20 13:25:39,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 382.0) internal successors, (2292), 6 states have internal predecessors, (2292), 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 13:25:39,236 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:25:39,237 INFO L204 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:25:39,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-20 13:25:39,237 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting t2Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-11-20 13:25:39,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:25:39,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1339384418, now seen corresponding path program 1 times [2024-11-20 13:25:39,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:25:39,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512821086] [2024-11-20 13:25:39,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:25:39,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:25:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:25:43,404 INFO L134 CoverageAnalysis]: Checked inductivity of 14270 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14270 trivial. 0 not checked. [2024-11-20 13:25:43,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:25:43,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512821086] [2024-11-20 13:25:43,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512821086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:25:43,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:25:43,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:25:43,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991283300] [2024-11-20 13:25:43,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:25:43,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:25:43,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:25:43,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:25:43,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:25:43,823 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 354 out of 474 [2024-11-20 13:25:43,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 480 transitions, 1490 flow. Second operand has 6 states, 6 states have (on average 367.8333333333333) internal successors, (2207), 6 states have internal predecessors, (2207), 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 13:25:43,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:25:43,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 354 of 474 [2024-11-20 13:25:43,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand