./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.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 b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:48:31,522 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:48:31,597 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:48:31,605 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:48:31,606 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:48:31,636 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:48:31,637 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:48:31,639 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:48:31,640 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:48:31,641 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:48:31,642 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:48:31,642 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:48:31,643 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:48:31,645 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:48:31,645 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:48:31,645 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:48:31,645 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:48:31,646 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:48:31,646 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:48:31,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:48:31,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:48:31,649 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:48:31,649 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:48:31,649 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:48:31,650 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:48:31,650 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:48:31,650 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:48:31,650 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:48:31,651 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:48:31,651 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:48:31,651 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:48:31,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:48:31,652 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:48:31,652 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:48:31,652 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:48:31,652 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:48:31,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:48:31,653 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:48:31,653 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:48:31,653 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:48:31,654 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:48:31,654 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2024-11-19 05:48:31,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:48:31,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:48:31,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:48:31,965 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:48:31,965 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:48:31,966 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2024-11-19 05:48:33,493 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:48:33,781 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:48:33,782 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2024-11-19 05:48:33,810 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fd09772d/f0d007d65ae948499e532d88b40d636b/FLAGaafaed549 [2024-11-19 05:48:34,058 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fd09772d/f0d007d65ae948499e532d88b40d636b [2024-11-19 05:48:34,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:48:34,063 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:48:34,065 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:48:34,066 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:48:34,071 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:48:34,072 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:48:34" (1/1) ... [2024-11-19 05:48:34,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26d05bef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:34, skipping insertion in model container [2024-11-19 05:48:34,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:48:34" (1/1) ... [2024-11-19 05:48:34,127 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:48:34,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:48:34,608 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:48:34,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:48:34,774 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:48:34,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:34 WrapperNode [2024-11-19 05:48:34,774 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:48:34,775 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:48:34,776 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:48:34,776 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:48:34,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:34" (1/1) ... [2024-11-19 05:48:34,802 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:34" (1/1) ... [2024-11-19 05:48:34,827 INFO L138 Inliner]: procedures = 263, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2024-11-19 05:48:34,828 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:48:34,829 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:48:34,829 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:48:34,829 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:48:34,839 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:34" (1/1) ... [2024-11-19 05:48:34,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:34" (1/1) ... [2024-11-19 05:48:34,848 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:34" (1/1) ... [2024-11-19 05:48:34,848 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:34" (1/1) ... [2024-11-19 05:48:34,856 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:34" (1/1) ... [2024-11-19 05:48:34,858 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:34" (1/1) ... [2024-11-19 05:48:34,860 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:34" (1/1) ... [2024-11-19 05:48:34,861 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:34" (1/1) ... [2024-11-19 05:48:34,863 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:48:34,864 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:48:34,864 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:48:34,864 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:48:34,865 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:34" (1/1) ... [2024-11-19 05:48:34,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:48:34,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:48:34,908 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) [2024-11-19 05:48:34,910 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 [2024-11-19 05:48:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 05:48:34,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 05:48:34,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 05:48:34,952 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 05:48:34,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:48:34,952 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 05:48:34,952 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 05:48:34,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:48:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:48:34,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:48:34,954 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:48:35,098 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:48:35,100 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:48:35,340 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:48:35,340 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:48:35,367 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:48:35,368 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 05:48:35,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:48:35 BoogieIcfgContainer [2024-11-19 05:48:35,368 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:48:35,370 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:48:35,370 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:48:35,373 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:48:35,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:48:34" (1/3) ... [2024-11-19 05:48:35,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbb60e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:48:35, skipping insertion in model container [2024-11-19 05:48:35,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:34" (2/3) ... [2024-11-19 05:48:35,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbb60e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:48:35, skipping insertion in model container [2024-11-19 05:48:35,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:48:35" (3/3) ... [2024-11-19 05:48:35,376 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2024-11-19 05:48:35,396 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:48:35,397 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-19 05:48:35,398 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:48:35,483 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-19 05:48:35,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 94 transitions, 195 flow [2024-11-19 05:48:35,572 INFO L124 PetriNetUnfolderBase]: 0/93 cut-off events. [2024-11-19 05:48:35,573 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:48:35,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 93 events. 0/93 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-19 05:48:35,578 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 94 transitions, 195 flow [2024-11-19 05:48:35,582 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 88 transitions, 179 flow [2024-11-19 05:48:35,591 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:48:35,598 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;@4968a0bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:48:35,598 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-19 05:48:35,614 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:48:35,614 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2024-11-19 05:48:35,614 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:48:35,615 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:35,616 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] [2024-11-19 05:48:35,616 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:48:35,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:35,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1709663426, now seen corresponding path program 1 times [2024-11-19 05:48:35,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:35,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634450540] [2024-11-19 05:48:35,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:48:35,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:48:36,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:36,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:36,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634450540] [2024-11-19 05:48:36,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634450540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:36,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:36,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:48:36,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007855619] [2024-11-19 05:48:36,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:36,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:48:36,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:36,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:48:36,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:48:36,745 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 94 [2024-11-19 05:48:36,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 179 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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) [2024-11-19 05:48:36,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:36,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 94 [2024-11-19 05:48:36,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:37,008 INFO L124 PetriNetUnfolderBase]: 114/471 cut-off events. [2024-11-19 05:48:37,009 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:48:37,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 732 conditions, 471 events. 114/471 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2451 event pairs, 61 based on Foata normal form. 0/439 useless extension candidates. Maximal degree in co-relation 697. Up to 207 conditions per place. [2024-11-19 05:48:37,020 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 30 selfloop transitions, 22 changer transitions 0/117 dead transitions. [2024-11-19 05:48:37,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 117 transitions, 341 flow [2024-11-19 05:48:37,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:48:37,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:48:37,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 473 transitions. [2024-11-19 05:48:37,039 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8386524822695035 [2024-11-19 05:48:37,041 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 179 flow. Second operand 6 states and 473 transitions. [2024-11-19 05:48:37,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 117 transitions, 341 flow [2024-11-19 05:48:37,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 117 transitions, 340 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:48:37,051 INFO L231 Difference]: Finished difference. Result has 101 places, 109 transitions, 328 flow [2024-11-19 05:48:37,053 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=328, PETRI_PLACES=101, PETRI_TRANSITIONS=109} [2024-11-19 05:48:37,056 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 9 predicate places. [2024-11-19 05:48:37,059 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 109 transitions, 328 flow [2024-11-19 05:48:37,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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) [2024-11-19 05:48:37,060 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:37,060 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] [2024-11-19 05:48:37,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:48:37,061 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:48:37,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:37,063 INFO L85 PathProgramCache]: Analyzing trace with hash 914001375, now seen corresponding path program 1 times [2024-11-19 05:48:37,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:37,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080202627] [2024-11-19 05:48:37,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:48:37,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:48:37,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:37,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:37,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080202627] [2024-11-19 05:48:37,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080202627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:37,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:37,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:48:37,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626608252] [2024-11-19 05:48:37,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:37,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:48:37,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:37,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:48:37,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:48:37,568 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 94 [2024-11-19 05:48:37,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 109 transitions, 328 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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) [2024-11-19 05:48:37,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:37,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 94 [2024-11-19 05:48:37,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:37,759 INFO L124 PetriNetUnfolderBase]: 152/588 cut-off events. [2024-11-19 05:48:37,759 INFO L125 PetriNetUnfolderBase]: For 136/155 co-relation queries the response was YES. [2024-11-19 05:48:37,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1106 conditions, 588 events. 152/588 cut-off events. For 136/155 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3336 event pairs, 61 based on Foata normal form. 5/564 useless extension candidates. Maximal degree in co-relation 1067. Up to 264 conditions per place. [2024-11-19 05:48:37,765 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 43 selfloop transitions, 26 changer transitions 0/138 dead transitions. [2024-11-19 05:48:37,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 138 transitions, 542 flow [2024-11-19 05:48:37,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:48:37,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:48:37,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 473 transitions. [2024-11-19 05:48:37,773 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8386524822695035 [2024-11-19 05:48:37,773 INFO L175 Difference]: Start difference. First operand has 101 places, 109 transitions, 328 flow. Second operand 6 states and 473 transitions. [2024-11-19 05:48:37,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 138 transitions, 542 flow [2024-11-19 05:48:37,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 138 transitions, 542 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:48:37,797 INFO L231 Difference]: Finished difference. Result has 111 places, 130 transitions, 512 flow [2024-11-19 05:48:37,798 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=512, PETRI_PLACES=111, PETRI_TRANSITIONS=130} [2024-11-19 05:48:37,799 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 19 predicate places. [2024-11-19 05:48:37,799 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 130 transitions, 512 flow [2024-11-19 05:48:37,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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) [2024-11-19 05:48:37,799 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:37,800 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] [2024-11-19 05:48:37,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 05:48:37,800 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:48:37,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:37,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1024991904, now seen corresponding path program 1 times [2024-11-19 05:48:37,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:37,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599408149] [2024-11-19 05:48:37,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:48:37,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:48:38,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:38,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:38,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599408149] [2024-11-19 05:48:38,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599408149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:38,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:38,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:48:38,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886920363] [2024-11-19 05:48:38,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:38,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:48:38,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:38,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:48:38,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:48:38,227 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 94 [2024-11-19 05:48:38,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 130 transitions, 512 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 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) [2024-11-19 05:48:38,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:38,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 94 [2024-11-19 05:48:38,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:38,506 INFO L124 PetriNetUnfolderBase]: 292/943 cut-off events. [2024-11-19 05:48:38,506 INFO L125 PetriNetUnfolderBase]: For 589/609 co-relation queries the response was YES. [2024-11-19 05:48:38,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2305 conditions, 943 events. 292/943 cut-off events. For 589/609 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5761 event pairs, 101 based on Foata normal form. 7/909 useless extension candidates. Maximal degree in co-relation 2261. Up to 528 conditions per place. [2024-11-19 05:48:38,517 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 68 selfloop transitions, 53 changer transitions 4/185 dead transitions. [2024-11-19 05:48:38,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 185 transitions, 1006 flow [2024-11-19 05:48:38,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:48:38,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:48:38,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2024-11-19 05:48:38,520 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8138297872340425 [2024-11-19 05:48:38,521 INFO L175 Difference]: Start difference. First operand has 111 places, 130 transitions, 512 flow. Second operand 6 states and 459 transitions. [2024-11-19 05:48:38,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 185 transitions, 1006 flow [2024-11-19 05:48:38,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 185 transitions, 1006 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:48:38,535 INFO L231 Difference]: Finished difference. Result has 121 places, 177 transitions, 994 flow [2024-11-19 05:48:38,536 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=994, PETRI_PLACES=121, PETRI_TRANSITIONS=177} [2024-11-19 05:48:38,536 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 29 predicate places. [2024-11-19 05:48:38,537 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 177 transitions, 994 flow [2024-11-19 05:48:38,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 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) [2024-11-19 05:48:38,538 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:38,538 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] [2024-11-19 05:48:38,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 05:48:38,538 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:48:38,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:38,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1016274529, now seen corresponding path program 1 times [2024-11-19 05:48:38,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:38,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235959694] [2024-11-19 05:48:38,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:48:38,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:38,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:48:38,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:38,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:38,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235959694] [2024-11-19 05:48:38,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235959694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:38,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:38,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:48:38,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334173862] [2024-11-19 05:48:38,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:38,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:48:38,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:38,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:48:38,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:48:38,910 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 94 [2024-11-19 05:48:38,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 177 transitions, 994 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 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) [2024-11-19 05:48:38,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:38,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 94 [2024-11-19 05:48:38,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:39,216 INFO L124 PetriNetUnfolderBase]: 396/1208 cut-off events. [2024-11-19 05:48:39,217 INFO L125 PetriNetUnfolderBase]: For 1618/1665 co-relation queries the response was YES. [2024-11-19 05:48:39,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3580 conditions, 1208 events. 396/1208 cut-off events. For 1618/1665 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7721 event pairs, 107 based on Foata normal form. 4/1182 useless extension candidates. Maximal degree in co-relation 3531. Up to 673 conditions per place. [2024-11-19 05:48:39,227 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 105 selfloop transitions, 61 changer transitions 10/238 dead transitions. [2024-11-19 05:48:39,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 238 transitions, 1692 flow [2024-11-19 05:48:39,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:48:39,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:48:39,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2024-11-19 05:48:39,230 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8138297872340425 [2024-11-19 05:48:39,230 INFO L175 Difference]: Start difference. First operand has 121 places, 177 transitions, 994 flow. Second operand 6 states and 459 transitions. [2024-11-19 05:48:39,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 238 transitions, 1692 flow [2024-11-19 05:48:39,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 238 transitions, 1628 flow, removed 32 selfloop flow, removed 0 redundant places. [2024-11-19 05:48:39,246 INFO L231 Difference]: Finished difference. Result has 131 places, 224 transitions, 1516 flow [2024-11-19 05:48:39,246 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1516, PETRI_PLACES=131, PETRI_TRANSITIONS=224} [2024-11-19 05:48:39,247 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 39 predicate places. [2024-11-19 05:48:39,247 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 224 transitions, 1516 flow [2024-11-19 05:48:39,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 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) [2024-11-19 05:48:39,248 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:39,248 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] [2024-11-19 05:48:39,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 05:48:39,249 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:48:39,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:39,249 INFO L85 PathProgramCache]: Analyzing trace with hash -121785405, now seen corresponding path program 1 times [2024-11-19 05:48:39,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:39,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272376115] [2024-11-19 05:48:39,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:48:39,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:48:39,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:39,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:39,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272376115] [2024-11-19 05:48:39,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272376115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:39,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:39,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:48:39,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733042834] [2024-11-19 05:48:39,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:39,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:48:39,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:39,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:48:39,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:48:40,467 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-19 05:48:40,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 224 transitions, 1516 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:48:40,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:40,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-19 05:48:40,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:41,463 INFO L124 PetriNetUnfolderBase]: 799/2301 cut-off events. [2024-11-19 05:48:41,464 INFO L125 PetriNetUnfolderBase]: For 4918/5024 co-relation queries the response was YES. [2024-11-19 05:48:41,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7874 conditions, 2301 events. 799/2301 cut-off events. For 4918/5024 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 16801 event pairs, 66 based on Foata normal form. 38/2326 useless extension candidates. Maximal degree in co-relation 7818. Up to 587 conditions per place. [2024-11-19 05:48:41,487 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 288 selfloop transitions, 75 changer transitions 29/474 dead transitions. [2024-11-19 05:48:41,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 474 transitions, 4184 flow [2024-11-19 05:48:41,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 05:48:41,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 05:48:41,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1060 transitions. [2024-11-19 05:48:41,491 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75177304964539 [2024-11-19 05:48:41,491 INFO L175 Difference]: Start difference. First operand has 131 places, 224 transitions, 1516 flow. Second operand 15 states and 1060 transitions. [2024-11-19 05:48:41,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 474 transitions, 4184 flow [2024-11-19 05:48:41,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 474 transitions, 4066 flow, removed 59 selfloop flow, removed 0 redundant places. [2024-11-19 05:48:41,530 INFO L231 Difference]: Finished difference. Result has 157 places, 284 transitions, 2335 flow [2024-11-19 05:48:41,531 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1448, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2335, PETRI_PLACES=157, PETRI_TRANSITIONS=284} [2024-11-19 05:48:41,532 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 65 predicate places. [2024-11-19 05:48:41,533 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 284 transitions, 2335 flow [2024-11-19 05:48:41,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:48:41,534 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:41,534 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] [2024-11-19 05:48:41,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 05:48:41,534 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:48:41,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:41,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1013121371, now seen corresponding path program 2 times [2024-11-19 05:48:41,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:41,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411232284] [2024-11-19 05:48:41,535 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:48:41,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:41,562 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:48:41,564 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:48:42,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:42,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:42,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411232284] [2024-11-19 05:48:42,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411232284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:42,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:42,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:48:42,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375712766] [2024-11-19 05:48:42,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:42,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:48:42,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:42,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:48:42,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:48:42,564 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-19 05:48:42,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 284 transitions, 2335 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:48:42,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:42,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-19 05:48:42,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:43,767 INFO L124 PetriNetUnfolderBase]: 1226/3469 cut-off events. [2024-11-19 05:48:43,768 INFO L125 PetriNetUnfolderBase]: For 11776/12020 co-relation queries the response was YES. [2024-11-19 05:48:43,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13335 conditions, 3469 events. 1226/3469 cut-off events. For 11776/12020 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 28071 event pairs, 103 based on Foata normal form. 83/3531 useless extension candidates. Maximal degree in co-relation 13264. Up to 931 conditions per place. [2024-11-19 05:48:43,796 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 296 selfloop transitions, 117 changer transitions 31/526 dead transitions. [2024-11-19 05:48:43,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 526 transitions, 5373 flow [2024-11-19 05:48:43,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 05:48:43,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-19 05:48:43,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1010 transitions. [2024-11-19 05:48:43,800 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7674772036474165 [2024-11-19 05:48:43,800 INFO L175 Difference]: Start difference. First operand has 157 places, 284 transitions, 2335 flow. Second operand 14 states and 1010 transitions. [2024-11-19 05:48:43,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 526 transitions, 5373 flow [2024-11-19 05:48:43,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 526 transitions, 5311 flow, removed 24 selfloop flow, removed 4 redundant places. [2024-11-19 05:48:43,870 INFO L231 Difference]: Finished difference. Result has 175 places, 356 transitions, 3732 flow [2024-11-19 05:48:43,871 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=2309, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3732, PETRI_PLACES=175, PETRI_TRANSITIONS=356} [2024-11-19 05:48:43,871 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 83 predicate places. [2024-11-19 05:48:43,872 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 356 transitions, 3732 flow [2024-11-19 05:48:43,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:48:43,872 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:43,873 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] [2024-11-19 05:48:43,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 05:48:43,873 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:48:43,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:43,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1422582121, now seen corresponding path program 3 times [2024-11-19 05:48:43,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:43,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492635544] [2024-11-19 05:48:43,874 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 05:48:43,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:43,894 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 05:48:43,894 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:48:44,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:44,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:44,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492635544] [2024-11-19 05:48:44,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492635544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:44,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:44,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:48:44,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830824920] [2024-11-19 05:48:44,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:44,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:48:44,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:44,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:48:44,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:48:45,016 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-19 05:48:45,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 356 transitions, 3732 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:48:45,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:45,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-19 05:48:45,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:46,165 INFO L124 PetriNetUnfolderBase]: 1248/3486 cut-off events. [2024-11-19 05:48:46,165 INFO L125 PetriNetUnfolderBase]: For 17161/17542 co-relation queries the response was YES. [2024-11-19 05:48:46,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14744 conditions, 3486 events. 1248/3486 cut-off events. For 17161/17542 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 28180 event pairs, 78 based on Foata normal form. 128/3582 useless extension candidates. Maximal degree in co-relation 14665. Up to 1525 conditions per place. [2024-11-19 05:48:46,204 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 183 selfloop transitions, 158 changer transitions 29/452 dead transitions. [2024-11-19 05:48:46,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 452 transitions, 5407 flow [2024-11-19 05:48:46,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 05:48:46,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-19 05:48:46,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 852 transitions. [2024-11-19 05:48:46,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7553191489361702 [2024-11-19 05:48:46,208 INFO L175 Difference]: Start difference. First operand has 175 places, 356 transitions, 3732 flow. Second operand 12 states and 852 transitions. [2024-11-19 05:48:46,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 452 transitions, 5407 flow [2024-11-19 05:48:46,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 452 transitions, 5324 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-11-19 05:48:46,319 INFO L231 Difference]: Finished difference. Result has 184 places, 379 transitions, 4663 flow [2024-11-19 05:48:46,321 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=3681, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4663, PETRI_PLACES=184, PETRI_TRANSITIONS=379} [2024-11-19 05:48:46,322 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 92 predicate places. [2024-11-19 05:48:46,323 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 379 transitions, 4663 flow [2024-11-19 05:48:46,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:48:46,324 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:46,324 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] [2024-11-19 05:48:46,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 05:48:46,324 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:48:46,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:46,325 INFO L85 PathProgramCache]: Analyzing trace with hash -746214381, now seen corresponding path program 4 times [2024-11-19 05:48:46,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:46,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24863170] [2024-11-19 05:48:46,326 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 05:48:46,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:46,352 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 05:48:46,353 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:48:46,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:46,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:46,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24863170] [2024-11-19 05:48:46,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24863170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:46,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:46,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:48:46,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206049091] [2024-11-19 05:48:46,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:46,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:48:46,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:46,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:48:46,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:48:47,299 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-19 05:48:47,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 379 transitions, 4663 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:48:47,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:47,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-19 05:48:47,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:48,902 INFO L124 PetriNetUnfolderBase]: 1570/4367 cut-off events. [2024-11-19 05:48:48,902 INFO L125 PetriNetUnfolderBase]: For 27039/27493 co-relation queries the response was YES. [2024-11-19 05:48:48,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19506 conditions, 4367 events. 1570/4367 cut-off events. For 27039/27493 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 37130 event pairs, 137 based on Foata normal form. 155/4489 useless extension candidates. Maximal degree in co-relation 19425. Up to 812 conditions per place. [2024-11-19 05:48:48,952 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 527 selfloop transitions, 150 changer transitions 17/776 dead transitions. [2024-11-19 05:48:48,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 776 transitions, 10055 flow [2024-11-19 05:48:48,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 05:48:48,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-19 05:48:48,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1157 transitions. [2024-11-19 05:48:48,955 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.769281914893617 [2024-11-19 05:48:48,955 INFO L175 Difference]: Start difference. First operand has 184 places, 379 transitions, 4663 flow. Second operand 16 states and 1157 transitions. [2024-11-19 05:48:48,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 776 transitions, 10055 flow [2024-11-19 05:48:49,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 776 transitions, 9889 flow, removed 10 selfloop flow, removed 7 redundant places. [2024-11-19 05:48:49,092 INFO L231 Difference]: Finished difference. Result has 202 places, 440 transitions, 6151 flow [2024-11-19 05:48:49,093 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=4557, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=6151, PETRI_PLACES=202, PETRI_TRANSITIONS=440} [2024-11-19 05:48:49,094 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 110 predicate places. [2024-11-19 05:48:49,094 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 440 transitions, 6151 flow [2024-11-19 05:48:49,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:48:49,095 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:49,095 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] [2024-11-19 05:48:49,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 05:48:49,096 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:48:49,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:49,097 INFO L85 PathProgramCache]: Analyzing trace with hash -190314597, now seen corresponding path program 5 times [2024-11-19 05:48:49,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:49,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769996019] [2024-11-19 05:48:49,097 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 05:48:49,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:49,115 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:48:49,115 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:48:49,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:49,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:49,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769996019] [2024-11-19 05:48:49,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769996019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:49,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:49,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:48:49,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659277305] [2024-11-19 05:48:49,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:49,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:48:49,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:49,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:48:49,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:48:50,138 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-19 05:48:50,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 440 transitions, 6151 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:48:50,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:50,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-19 05:48:50,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:51,882 INFO L124 PetriNetUnfolderBase]: 2099/5778 cut-off events. [2024-11-19 05:48:51,882 INFO L125 PetriNetUnfolderBase]: For 47578/48321 co-relation queries the response was YES. [2024-11-19 05:48:51,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27414 conditions, 5778 events. 2099/5778 cut-off events. For 47578/48321 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 52069 event pairs, 153 based on Foata normal form. 176/5910 useless extension candidates. Maximal degree in co-relation 27323. Up to 2201 conditions per place. [2024-11-19 05:48:51,932 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 426 selfloop transitions, 221 changer transitions 21/750 dead transitions. [2024-11-19 05:48:51,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 750 transitions, 11340 flow [2024-11-19 05:48:51,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 05:48:51,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-19 05:48:51,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1007 transitions. [2024-11-19 05:48:51,936 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7651975683890577 [2024-11-19 05:48:51,936 INFO L175 Difference]: Start difference. First operand has 202 places, 440 transitions, 6151 flow. Second operand 14 states and 1007 transitions. [2024-11-19 05:48:51,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 750 transitions, 11340 flow [2024-11-19 05:48:52,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 750 transitions, 10974 flow, removed 81 selfloop flow, removed 7 redundant places. [2024-11-19 05:48:52,194 INFO L231 Difference]: Finished difference. Result has 217 places, 543 transitions, 8635 flow [2024-11-19 05:48:52,195 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=5923, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8635, PETRI_PLACES=217, PETRI_TRANSITIONS=543} [2024-11-19 05:48:52,195 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 125 predicate places. [2024-11-19 05:48:52,196 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 543 transitions, 8635 flow [2024-11-19 05:48:52,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:48:52,196 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:52,196 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] [2024-11-19 05:48:52,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 05:48:52,197 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:48:52,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:52,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1542519371, now seen corresponding path program 1 times [2024-11-19 05:48:52,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:52,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585085881] [2024-11-19 05:48:52,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:48:52,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:52,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:48:52,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:52,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:52,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585085881] [2024-11-19 05:48:52,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585085881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:52,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:52,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:48:52,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235335023] [2024-11-19 05:48:52,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:52,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:48:52,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:52,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:48:52,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:48:53,034 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-19 05:48:53,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 543 transitions, 8635 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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) [2024-11-19 05:48:53,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:53,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-19 05:48:53,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:54,870 INFO L124 PetriNetUnfolderBase]: 2618/6770 cut-off events. [2024-11-19 05:48:54,871 INFO L125 PetriNetUnfolderBase]: For 62107/62540 co-relation queries the response was YES. [2024-11-19 05:48:54,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34060 conditions, 6770 events. 2618/6770 cut-off events. For 62107/62540 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 60046 event pairs, 434 based on Foata normal form. 71/6787 useless extension candidates. Maximal degree in co-relation 33961. Up to 2208 conditions per place. [2024-11-19 05:48:54,931 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 610 selfloop transitions, 150 changer transitions 68/901 dead transitions. [2024-11-19 05:48:54,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 901 transitions, 13782 flow [2024-11-19 05:48:54,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 05:48:54,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-19 05:48:54,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 995 transitions. [2024-11-19 05:48:54,935 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.756079027355623 [2024-11-19 05:48:54,935 INFO L175 Difference]: Start difference. First operand has 217 places, 543 transitions, 8635 flow. Second operand 14 states and 995 transitions. [2024-11-19 05:48:54,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 901 transitions, 13782 flow [2024-11-19 05:48:55,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 901 transitions, 13437 flow, removed 93 selfloop flow, removed 5 redundant places. [2024-11-19 05:48:55,361 INFO L231 Difference]: Finished difference. Result has 233 places, 614 transitions, 9881 flow [2024-11-19 05:48:55,362 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=8365, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9881, PETRI_PLACES=233, PETRI_TRANSITIONS=614} [2024-11-19 05:48:55,363 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 141 predicate places. [2024-11-19 05:48:55,363 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 614 transitions, 9881 flow [2024-11-19 05:48:55,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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) [2024-11-19 05:48:55,363 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:55,364 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] [2024-11-19 05:48:55,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 05:48:55,364 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:48:55,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:55,364 INFO L85 PathProgramCache]: Analyzing trace with hash -339106291, now seen corresponding path program 6 times [2024-11-19 05:48:55,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:55,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988082160] [2024-11-19 05:48:55,365 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 05:48:55,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:55,388 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 05:48:55,389 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:48:55,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:55,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:55,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988082160] [2024-11-19 05:48:55,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988082160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:55,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:55,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:48:55,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422376594] [2024-11-19 05:48:55,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:55,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:48:55,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:55,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:48:55,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:48:56,382 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-19 05:48:56,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 614 transitions, 9881 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:48:56,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:56,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-19 05:48:56,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:58,184 INFO L124 PetriNetUnfolderBase]: 2379/6638 cut-off events. [2024-11-19 05:48:58,184 INFO L125 PetriNetUnfolderBase]: For 66231/67082 co-relation queries the response was YES. [2024-11-19 05:48:58,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34152 conditions, 6638 events. 2379/6638 cut-off events. For 66231/67082 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 62069 event pairs, 258 based on Foata normal form. 203/6801 useless extension candidates. Maximal degree in co-relation 34046. Up to 1769 conditions per place. [2024-11-19 05:48:58,269 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 579 selfloop transitions, 231 changer transitions 19/917 dead transitions. [2024-11-19 05:48:58,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 917 transitions, 14931 flow [2024-11-19 05:48:58,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 05:48:58,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 05:48:58,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1074 transitions. [2024-11-19 05:48:58,273 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7617021276595745 [2024-11-19 05:48:58,274 INFO L175 Difference]: Start difference. First operand has 233 places, 614 transitions, 9881 flow. Second operand 15 states and 1074 transitions. [2024-11-19 05:48:58,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 917 transitions, 14931 flow [2024-11-19 05:48:58,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 917 transitions, 14807 flow, removed 55 selfloop flow, removed 3 redundant places. [2024-11-19 05:48:58,812 INFO L231 Difference]: Finished difference. Result has 254 places, 675 transitions, 11914 flow [2024-11-19 05:48:58,813 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=9783, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=614, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=11914, PETRI_PLACES=254, PETRI_TRANSITIONS=675} [2024-11-19 05:48:58,814 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 162 predicate places. [2024-11-19 05:48:58,814 INFO L471 AbstractCegarLoop]: Abstraction has has 254 places, 675 transitions, 11914 flow [2024-11-19 05:48:58,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:48:58,814 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:58,814 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] [2024-11-19 05:48:58,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 05:48:58,815 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:48:58,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:58,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1534148209, now seen corresponding path program 7 times [2024-11-19 05:48:58,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:58,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287903473] [2024-11-19 05:48:58,816 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 05:48:58,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:48:59,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:59,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:59,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287903473] [2024-11-19 05:48:59,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287903473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:59,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:59,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:48:59,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980963511] [2024-11-19 05:48:59,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:59,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:48:59,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:59,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:48:59,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:48:59,801 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-19 05:48:59,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 675 transitions, 11914 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:48:59,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:59,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-19 05:48:59,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:01,484 INFO L124 PetriNetUnfolderBase]: 2422/6709 cut-off events. [2024-11-19 05:49:01,484 INFO L125 PetriNetUnfolderBase]: For 84482/85591 co-relation queries the response was YES. [2024-11-19 05:49:01,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36397 conditions, 6709 events. 2422/6709 cut-off events. For 84482/85591 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 62627 event pairs, 263 based on Foata normal form. 239/6909 useless extension candidates. Maximal degree in co-relation 36280. Up to 2017 conditions per place. [2024-11-19 05:49:01,562 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 616 selfloop transitions, 225 changer transitions 18/947 dead transitions. [2024-11-19 05:49:01,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 947 transitions, 16614 flow [2024-11-19 05:49:01,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 05:49:01,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 05:49:01,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1078 transitions. [2024-11-19 05:49:01,565 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7645390070921986 [2024-11-19 05:49:01,565 INFO L175 Difference]: Start difference. First operand has 254 places, 675 transitions, 11914 flow. Second operand 15 states and 1078 transitions. [2024-11-19 05:49:01,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 947 transitions, 16614 flow [2024-11-19 05:49:02,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 947 transitions, 16252 flow, removed 133 selfloop flow, removed 5 redundant places. [2024-11-19 05:49:02,029 INFO L231 Difference]: Finished difference. Result has 271 places, 701 transitions, 12705 flow [2024-11-19 05:49:02,030 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=11583, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=199, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=12705, PETRI_PLACES=271, PETRI_TRANSITIONS=701} [2024-11-19 05:49:02,030 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 179 predicate places. [2024-11-19 05:49:02,030 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 701 transitions, 12705 flow [2024-11-19 05:49:02,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:49:02,031 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:02,031 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] [2024-11-19 05:49:02,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 05:49:02,031 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:02,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:02,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1310405227, now seen corresponding path program 2 times [2024-11-19 05:49:02,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:02,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316993977] [2024-11-19 05:49:02,032 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:02,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:02,044 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:02,045 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:02,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:02,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:02,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316993977] [2024-11-19 05:49:02,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316993977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:02,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:02,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:02,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093016818] [2024-11-19 05:49:02,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:02,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:02,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:02,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:02,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:02,766 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-19 05:49:02,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 701 transitions, 12705 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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) [2024-11-19 05:49:02,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:02,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-19 05:49:02,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:05,016 INFO L124 PetriNetUnfolderBase]: 3090/8007 cut-off events. [2024-11-19 05:49:05,016 INFO L125 PetriNetUnfolderBase]: For 101097/101615 co-relation queries the response was YES. [2024-11-19 05:49:05,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44802 conditions, 8007 events. 3090/8007 cut-off events. For 101097/101615 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 73558 event pairs, 555 based on Foata normal form. 106/8050 useless extension candidates. Maximal degree in co-relation 44679. Up to 2897 conditions per place. [2024-11-19 05:49:05,118 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 687 selfloop transitions, 186 changer transitions 53/1003 dead transitions. [2024-11-19 05:49:05,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 1003 transitions, 17473 flow [2024-11-19 05:49:05,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 05:49:05,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 05:49:05,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1052 transitions. [2024-11-19 05:49:05,120 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7460992907801418 [2024-11-19 05:49:05,120 INFO L175 Difference]: Start difference. First operand has 271 places, 701 transitions, 12705 flow. Second operand 15 states and 1052 transitions. [2024-11-19 05:49:05,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 1003 transitions, 17473 flow [2024-11-19 05:49:05,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 1003 transitions, 16859 flow, removed 97 selfloop flow, removed 11 redundant places. [2024-11-19 05:49:05,921 INFO L231 Difference]: Finished difference. Result has 280 places, 720 transitions, 13017 flow [2024-11-19 05:49:05,922 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=12140, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=701, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=13017, PETRI_PLACES=280, PETRI_TRANSITIONS=720} [2024-11-19 05:49:05,922 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 188 predicate places. [2024-11-19 05:49:05,922 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 720 transitions, 13017 flow [2024-11-19 05:49:05,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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) [2024-11-19 05:49:05,923 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:05,923 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] [2024-11-19 05:49:05,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 05:49:05,923 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:05,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:05,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1108754079, now seen corresponding path program 3 times [2024-11-19 05:49:05,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:05,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625182633] [2024-11-19 05:49:05,924 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 05:49:05,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:05,936 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 05:49:05,936 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:06,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:06,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:06,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625182633] [2024-11-19 05:49:06,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625182633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:06,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:06,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:06,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745127459] [2024-11-19 05:49:06,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:06,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:06,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:06,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:06,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:06,555 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-19 05:49:06,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 720 transitions, 13017 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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) [2024-11-19 05:49:06,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:06,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-19 05:49:06,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:09,202 INFO L124 PetriNetUnfolderBase]: 3148/8156 cut-off events. [2024-11-19 05:49:09,202 INFO L125 PetriNetUnfolderBase]: For 102377/102873 co-relation queries the response was YES. [2024-11-19 05:49:09,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46963 conditions, 8156 events. 3148/8156 cut-off events. For 102377/102873 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 75166 event pairs, 483 based on Foata normal form. 102/8200 useless extension candidates. Maximal degree in co-relation 46837. Up to 2896 conditions per place. [2024-11-19 05:49:09,296 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 928 selfloop transitions, 137 changer transitions 41/1183 dead transitions. [2024-11-19 05:49:09,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 1183 transitions, 20257 flow [2024-11-19 05:49:09,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 05:49:09,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 05:49:09,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1059 transitions. [2024-11-19 05:49:09,298 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7510638297872341 [2024-11-19 05:49:09,299 INFO L175 Difference]: Start difference. First operand has 280 places, 720 transitions, 13017 flow. Second operand 15 states and 1059 transitions. [2024-11-19 05:49:09,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 1183 transitions, 20257 flow [2024-11-19 05:49:10,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 1183 transitions, 19979 flow, removed 23 selfloop flow, removed 10 redundant places. [2024-11-19 05:49:10,056 INFO L231 Difference]: Finished difference. Result has 292 places, 779 transitions, 14269 flow [2024-11-19 05:49:10,057 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=12803, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=720, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=588, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=14269, PETRI_PLACES=292, PETRI_TRANSITIONS=779} [2024-11-19 05:49:10,057 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 200 predicate places. [2024-11-19 05:49:10,058 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 779 transitions, 14269 flow [2024-11-19 05:49:10,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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) [2024-11-19 05:49:10,058 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:10,058 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] [2024-11-19 05:49:10,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 05:49:10,058 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:10,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:10,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1662952885, now seen corresponding path program 4 times [2024-11-19 05:49:10,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:10,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696859524] [2024-11-19 05:49:10,059 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 05:49:10,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:10,074 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 05:49:10,075 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:10,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:10,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:10,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696859524] [2024-11-19 05:49:10,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696859524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:10,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:10,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:10,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616553296] [2024-11-19 05:49:10,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:10,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:10,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:10,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:10,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:10,893 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-19 05:49:10,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 779 transitions, 14269 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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) [2024-11-19 05:49:10,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:10,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-19 05:49:10,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:13,607 INFO L124 PetriNetUnfolderBase]: 3204/8341 cut-off events. [2024-11-19 05:49:13,607 INFO L125 PetriNetUnfolderBase]: For 112222/112720 co-relation queries the response was YES. [2024-11-19 05:49:13,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49536 conditions, 8341 events. 3204/8341 cut-off events. For 112222/112720 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 77396 event pairs, 552 based on Foata normal form. 111/8390 useless extension candidates. Maximal degree in co-relation 49403. Up to 2899 conditions per place. [2024-11-19 05:49:13,696 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 768 selfloop transitions, 230 changer transitions 38/1113 dead transitions. [2024-11-19 05:49:13,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 1113 transitions, 20011 flow [2024-11-19 05:49:13,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 05:49:13,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 05:49:13,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1054 transitions. [2024-11-19 05:49:13,699 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7475177304964539 [2024-11-19 05:49:13,699 INFO L175 Difference]: Start difference. First operand has 292 places, 779 transitions, 14269 flow. Second operand 15 states and 1054 transitions. [2024-11-19 05:49:13,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 1113 transitions, 20011 flow [2024-11-19 05:49:14,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 1113 transitions, 19760 flow, removed 58 selfloop flow, removed 9 redundant places. [2024-11-19 05:49:14,663 INFO L231 Difference]: Finished difference. Result has 304 places, 818 transitions, 15598 flow [2024-11-19 05:49:14,664 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=14079, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=779, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=15598, PETRI_PLACES=304, PETRI_TRANSITIONS=818} [2024-11-19 05:49:14,665 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 212 predicate places. [2024-11-19 05:49:14,665 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 818 transitions, 15598 flow [2024-11-19 05:49:14,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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) [2024-11-19 05:49:14,665 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:14,665 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] [2024-11-19 05:49:14,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 05:49:14,666 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:14,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:14,666 INFO L85 PathProgramCache]: Analyzing trace with hash -295726675, now seen corresponding path program 1 times [2024-11-19 05:49:14,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:14,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184860355] [2024-11-19 05:49:14,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:14,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:14,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:15,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:15,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:15,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184860355] [2024-11-19 05:49:15,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184860355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:15,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:15,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:15,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054542118] [2024-11-19 05:49:15,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:15,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:15,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:15,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:15,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:15,578 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-19 05:49:15,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 818 transitions, 15598 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:49:15,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:15,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-19 05:49:15,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:17,694 INFO L124 PetriNetUnfolderBase]: 2720/7552 cut-off events. [2024-11-19 05:49:17,694 INFO L125 PetriNetUnfolderBase]: For 114613/115536 co-relation queries the response was YES. [2024-11-19 05:49:17,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44743 conditions, 7552 events. 2720/7552 cut-off events. For 114613/115536 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 71959 event pairs, 264 based on Foata normal form. 173/7677 useless extension candidates. Maximal degree in co-relation 44605. Up to 1988 conditions per place. [2024-11-19 05:49:17,789 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 669 selfloop transitions, 186 changer transitions 25/1161 dead transitions. [2024-11-19 05:49:17,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 1161 transitions, 21156 flow [2024-11-19 05:49:17,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 05:49:17,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 05:49:17,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1099 transitions. [2024-11-19 05:49:17,791 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7794326241134751 [2024-11-19 05:49:17,791 INFO L175 Difference]: Start difference. First operand has 304 places, 818 transitions, 15598 flow. Second operand 15 states and 1099 transitions. [2024-11-19 05:49:17,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 1161 transitions, 21156 flow [2024-11-19 05:49:18,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 1161 transitions, 20800 flow, removed 60 selfloop flow, removed 10 redundant places. [2024-11-19 05:49:18,581 INFO L231 Difference]: Finished difference. Result has 317 places, 926 transitions, 17720 flow [2024-11-19 05:49:18,582 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=15264, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=676, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=17720, PETRI_PLACES=317, PETRI_TRANSITIONS=926} [2024-11-19 05:49:18,583 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 225 predicate places. [2024-11-19 05:49:18,583 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 926 transitions, 17720 flow [2024-11-19 05:49:18,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:49:18,583 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:18,583 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] [2024-11-19 05:49:18,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 05:49:18,584 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:18,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:18,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1742526705, now seen corresponding path program 5 times [2024-11-19 05:49:18,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:18,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117637104] [2024-11-19 05:49:18,584 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 05:49:18,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:18,596 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:18,596 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:18,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:18,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:18,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117637104] [2024-11-19 05:49:18,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117637104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:18,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:18,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:18,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380400524] [2024-11-19 05:49:18,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:18,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:18,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:18,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:18,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:19,220 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-19 05:49:19,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 926 transitions, 17720 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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) [2024-11-19 05:49:19,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:19,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-19 05:49:19,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:22,234 INFO L124 PetriNetUnfolderBase]: 3347/8760 cut-off events. [2024-11-19 05:49:22,234 INFO L125 PetriNetUnfolderBase]: For 130105/130659 co-relation queries the response was YES. [2024-11-19 05:49:22,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53891 conditions, 8760 events. 3347/8760 cut-off events. For 130105/130659 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 82351 event pairs, 602 based on Foata normal form. 123/8815 useless extension candidates. Maximal degree in co-relation 53746. Up to 2904 conditions per place. [2024-11-19 05:49:22,366 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 868 selfloop transitions, 260 changer transitions 36/1241 dead transitions. [2024-11-19 05:49:22,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 1241 transitions, 23783 flow [2024-11-19 05:49:22,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 05:49:22,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 05:49:22,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1054 transitions. [2024-11-19 05:49:22,368 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7475177304964539 [2024-11-19 05:49:22,369 INFO L175 Difference]: Start difference. First operand has 317 places, 926 transitions, 17720 flow. Second operand 15 states and 1054 transitions. [2024-11-19 05:49:22,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 1241 transitions, 23783 flow [2024-11-19 05:49:23,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 1241 transitions, 23680 flow, removed 45 selfloop flow, removed 3 redundant places. [2024-11-19 05:49:23,606 INFO L231 Difference]: Finished difference. Result has 335 places, 968 transitions, 19219 flow [2024-11-19 05:49:23,607 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=17619, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=926, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=218, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=670, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=19219, PETRI_PLACES=335, PETRI_TRANSITIONS=968} [2024-11-19 05:49:23,607 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 243 predicate places. [2024-11-19 05:49:23,607 INFO L471 AbstractCegarLoop]: Abstraction has has 335 places, 968 transitions, 19219 flow [2024-11-19 05:49:23,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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) [2024-11-19 05:49:23,608 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:23,608 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] [2024-11-19 05:49:23,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 05:49:23,608 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:23,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:23,608 INFO L85 PathProgramCache]: Analyzing trace with hash 658878385, now seen corresponding path program 2 times [2024-11-19 05:49:23,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:23,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822960221] [2024-11-19 05:49:23,609 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:23,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:23,620 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:23,620 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:23,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:23,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:23,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822960221] [2024-11-19 05:49:23,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822960221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:23,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:23,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:23,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200145300] [2024-11-19 05:49:23,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:23,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:23,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:23,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:23,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:24,415 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-19 05:49:24,416 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 968 transitions, 19219 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:49:24,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:24,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-19 05:49:24,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:27,106 INFO L124 PetriNetUnfolderBase]: 2702/7568 cut-off events. [2024-11-19 05:49:27,107 INFO L125 PetriNetUnfolderBase]: For 133549/134506 co-relation queries the response was YES. [2024-11-19 05:49:27,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47486 conditions, 7568 events. 2702/7568 cut-off events. For 133549/134506 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 72501 event pairs, 246 based on Foata normal form. 180/7704 useless extension candidates. Maximal degree in co-relation 47334. Up to 1992 conditions per place. [2024-11-19 05:49:27,183 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 763 selfloop transitions, 185 changer transitions 24/1259 dead transitions. [2024-11-19 05:49:27,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 1259 transitions, 24163 flow [2024-11-19 05:49:27,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 05:49:27,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 05:49:27,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1099 transitions. [2024-11-19 05:49:27,185 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7794326241134751 [2024-11-19 05:49:27,185 INFO L175 Difference]: Start difference. First operand has 335 places, 968 transitions, 19219 flow. Second operand 15 states and 1099 transitions. [2024-11-19 05:49:27,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 1259 transitions, 24163 flow [2024-11-19 05:49:28,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 1259 transitions, 23869 flow, removed 79 selfloop flow, removed 8 redundant places. [2024-11-19 05:49:28,295 INFO L231 Difference]: Finished difference. Result has 349 places, 1000 transitions, 19975 flow [2024-11-19 05:49:28,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=18934, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=968, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=785, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=19975, PETRI_PLACES=349, PETRI_TRANSITIONS=1000} [2024-11-19 05:49:28,296 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 257 predicate places. [2024-11-19 05:49:28,296 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 1000 transitions, 19975 flow [2024-11-19 05:49:28,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:49:28,297 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:28,297 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] [2024-11-19 05:49:28,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 05:49:28,297 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:28,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:28,297 INFO L85 PathProgramCache]: Analyzing trace with hash 425477271, now seen corresponding path program 1 times [2024-11-19 05:49:28,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:28,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577266105] [2024-11-19 05:49:28,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:28,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:28,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:28,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:28,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577266105] [2024-11-19 05:49:28,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577266105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:28,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:28,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:28,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522194563] [2024-11-19 05:49:28,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:28,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:28,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:28,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:28,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:29,028 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-19 05:49:29,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 1000 transitions, 19975 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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) [2024-11-19 05:49:29,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:29,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-19 05:49:29,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:32,229 INFO L124 PetriNetUnfolderBase]: 3279/8595 cut-off events. [2024-11-19 05:49:32,229 INFO L125 PetriNetUnfolderBase]: For 151812/152426 co-relation queries the response was YES. [2024-11-19 05:49:32,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56210 conditions, 8595 events. 3279/8595 cut-off events. For 151812/152426 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 80524 event pairs, 575 based on Foata normal form. 93/8630 useless extension candidates. Maximal degree in co-relation 56051. Up to 2975 conditions per place. [2024-11-19 05:49:32,328 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 1070 selfloop transitions, 162 changer transitions 69/1383 dead transitions. [2024-11-19 05:49:32,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 1383 transitions, 27350 flow [2024-11-19 05:49:32,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 05:49:32,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-19 05:49:32,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1119 transitions. [2024-11-19 05:49:32,330 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7440159574468085 [2024-11-19 05:49:32,330 INFO L175 Difference]: Start difference. First operand has 349 places, 1000 transitions, 19975 flow. Second operand 16 states and 1119 transitions. [2024-11-19 05:49:32,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 1383 transitions, 27350 flow [2024-11-19 05:49:33,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 1383 transitions, 27013 flow, removed 65 selfloop flow, removed 8 redundant places. [2024-11-19 05:49:33,508 INFO L231 Difference]: Finished difference. Result has 364 places, 1054 transitions, 20880 flow [2024-11-19 05:49:33,510 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=19707, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1000, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=869, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=20880, PETRI_PLACES=364, PETRI_TRANSITIONS=1054} [2024-11-19 05:49:33,510 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 272 predicate places. [2024-11-19 05:49:33,510 INFO L471 AbstractCegarLoop]: Abstraction has has 364 places, 1054 transitions, 20880 flow [2024-11-19 05:49:33,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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) [2024-11-19 05:49:33,511 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:33,511 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] [2024-11-19 05:49:33,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 05:49:33,511 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:33,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:33,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1656638187, now seen corresponding path program 3 times [2024-11-19 05:49:33,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:33,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416491855] [2024-11-19 05:49:33,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 05:49:33,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:33,523 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 05:49:33,524 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:33,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:33,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:33,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416491855] [2024-11-19 05:49:33,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416491855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:33,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:33,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:33,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673014189] [2024-11-19 05:49:33,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:33,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:33,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:33,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:33,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:34,223 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-19 05:49:34,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 1054 transitions, 20880 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:49:34,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:34,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-19 05:49:34,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:37,281 INFO L124 PetriNetUnfolderBase]: 2637/7470 cut-off events. [2024-11-19 05:49:37,281 INFO L125 PetriNetUnfolderBase]: For 145674/146640 co-relation queries the response was YES. [2024-11-19 05:49:37,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49511 conditions, 7470 events. 2637/7470 cut-off events. For 145674/146640 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 71698 event pairs, 267 based on Foata normal form. 220/7654 useless extension candidates. Maximal degree in co-relation 49345. Up to 1984 conditions per place. [2024-11-19 05:49:37,397 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 720 selfloop transitions, 216 changer transitions 28/1262 dead transitions. [2024-11-19 05:49:37,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 1262 transitions, 25568 flow [2024-11-19 05:49:37,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 05:49:37,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-19 05:49:37,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1027 transitions. [2024-11-19 05:49:37,400 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7803951367781155 [2024-11-19 05:49:37,400 INFO L175 Difference]: Start difference. First operand has 364 places, 1054 transitions, 20880 flow. Second operand 14 states and 1027 transitions. [2024-11-19 05:49:37,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 1262 transitions, 25568 flow [2024-11-19 05:49:38,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 1262 transitions, 25382 flow, removed 71 selfloop flow, removed 5 redundant places. [2024-11-19 05:49:38,655 INFO L231 Difference]: Finished difference. Result has 379 places, 1074 transitions, 22108 flow [2024-11-19 05:49:38,656 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=20694, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1054, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=847, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=22108, PETRI_PLACES=379, PETRI_TRANSITIONS=1074} [2024-11-19 05:49:38,656 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 287 predicate places. [2024-11-19 05:49:38,656 INFO L471 AbstractCegarLoop]: Abstraction has has 379 places, 1074 transitions, 22108 flow [2024-11-19 05:49:38,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:49:38,657 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:38,657 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] [2024-11-19 05:49:38,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 05:49:38,657 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:38,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:38,658 INFO L85 PathProgramCache]: Analyzing trace with hash 264199829, now seen corresponding path program 4 times [2024-11-19 05:49:38,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:38,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608066420] [2024-11-19 05:49:38,658 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 05:49:38,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:38,668 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 05:49:38,668 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:38,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:38,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:38,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608066420] [2024-11-19 05:49:38,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608066420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:38,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:38,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:38,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504684794] [2024-11-19 05:49:38,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:38,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:38,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:38,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:38,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:39,364 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-19 05:49:39,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 1074 transitions, 22108 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:49:39,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:39,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-19 05:49:39,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:42,346 INFO L124 PetriNetUnfolderBase]: 2673/7597 cut-off events. [2024-11-19 05:49:42,346 INFO L125 PetriNetUnfolderBase]: For 163783/164814 co-relation queries the response was YES. [2024-11-19 05:49:42,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51620 conditions, 7597 events. 2673/7597 cut-off events. For 163783/164814 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 73350 event pairs, 266 based on Foata normal form. 226/7790 useless extension candidates. Maximal degree in co-relation 51449. Up to 1985 conditions per place. [2024-11-19 05:49:42,424 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 759 selfloop transitions, 243 changer transitions 21/1321 dead transitions. [2024-11-19 05:49:42,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 1321 transitions, 27686 flow [2024-11-19 05:49:42,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 05:49:42,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 05:49:42,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1097 transitions. [2024-11-19 05:49:42,426 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7780141843971631 [2024-11-19 05:49:42,426 INFO L175 Difference]: Start difference. First operand has 379 places, 1074 transitions, 22108 flow. Second operand 15 states and 1097 transitions. [2024-11-19 05:49:42,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 1321 transitions, 27686 flow [2024-11-19 05:49:43,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 1321 transitions, 27508 flow, removed 7 selfloop flow, removed 7 redundant places. [2024-11-19 05:49:43,576 INFO L231 Difference]: Finished difference. Result has 392 places, 1113 transitions, 23817 flow [2024-11-19 05:49:43,577 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=21944, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1074, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=205, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=843, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=23817, PETRI_PLACES=392, PETRI_TRANSITIONS=1113} [2024-11-19 05:49:43,577 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 300 predicate places. [2024-11-19 05:49:43,577 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 1113 transitions, 23817 flow [2024-11-19 05:49:43,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:49:43,578 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:43,578 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] [2024-11-19 05:49:43,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 05:49:43,578 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:43,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:43,578 INFO L85 PathProgramCache]: Analyzing trace with hash 51531535, now seen corresponding path program 5 times [2024-11-19 05:49:43,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:43,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19278165] [2024-11-19 05:49:43,578 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 05:49:43,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:43,590 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:43,590 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:43,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:43,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:43,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19278165] [2024-11-19 05:49:43,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19278165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:43,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:43,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:43,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004128740] [2024-11-19 05:49:43,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:43,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:43,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:43,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:43,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:44,279 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-19 05:49:44,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 1113 transitions, 23817 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:49:44,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:44,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-19 05:49:44,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:47,078 INFO L124 PetriNetUnfolderBase]: 2684/7643 cut-off events. [2024-11-19 05:49:47,078 INFO L125 PetriNetUnfolderBase]: For 181217/182367 co-relation queries the response was YES. [2024-11-19 05:49:47,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53144 conditions, 7643 events. 2684/7643 cut-off events. For 181217/182367 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 73981 event pairs, 263 based on Foata normal form. 295/7901 useless extension candidates. Maximal degree in co-relation 52968. Up to 1986 conditions per place. [2024-11-19 05:49:47,185 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 749 selfloop transitions, 257 changer transitions 26/1330 dead transitions. [2024-11-19 05:49:47,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 1330 transitions, 28958 flow [2024-11-19 05:49:47,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 05:49:47,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 05:49:47,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1094 transitions. [2024-11-19 05:49:47,187 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.775886524822695 [2024-11-19 05:49:47,187 INFO L175 Difference]: Start difference. First operand has 392 places, 1113 transitions, 23817 flow. Second operand 15 states and 1094 transitions. [2024-11-19 05:49:47,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 1330 transitions, 28958 flow [2024-11-19 05:49:48,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 1330 transitions, 28661 flow, removed 36 selfloop flow, removed 9 redundant places. [2024-11-19 05:49:48,633 INFO L231 Difference]: Finished difference. Result has 402 places, 1140 transitions, 25236 flow [2024-11-19 05:49:48,633 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=23533, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=867, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25236, PETRI_PLACES=402, PETRI_TRANSITIONS=1140} [2024-11-19 05:49:48,634 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 310 predicate places. [2024-11-19 05:49:48,634 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 1140 transitions, 25236 flow [2024-11-19 05:49:48,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:49:48,634 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:48,634 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] [2024-11-19 05:49:48,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 05:49:48,635 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:48,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:48,635 INFO L85 PathProgramCache]: Analyzing trace with hash -19214287, now seen corresponding path program 8 times [2024-11-19 05:49:48,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:48,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690226706] [2024-11-19 05:49:48,635 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:48,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:48,645 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:48,645 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:48,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:48,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:48,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690226706] [2024-11-19 05:49:48,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690226706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:48,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:48,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:48,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976855702] [2024-11-19 05:49:48,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:48,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:48,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:48,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:48,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:49,317 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-19 05:49:49,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 1140 transitions, 25236 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:49:49,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:49,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-19 05:49:49,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:52,252 INFO L124 PetriNetUnfolderBase]: 2711/7696 cut-off events. [2024-11-19 05:49:52,252 INFO L125 PetriNetUnfolderBase]: For 197160/198572 co-relation queries the response was YES. [2024-11-19 05:49:52,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55252 conditions, 7696 events. 2711/7696 cut-off events. For 197160/198572 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 74777 event pairs, 279 based on Foata normal form. 318/7982 useless extension candidates. Maximal degree in co-relation 55072. Up to 2023 conditions per place. [2024-11-19 05:49:52,383 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 732 selfloop transitions, 392 changer transitions 22/1346 dead transitions. [2024-11-19 05:49:52,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 1346 transitions, 31395 flow [2024-11-19 05:49:52,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 05:49:52,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 05:49:52,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1075 transitions. [2024-11-19 05:49:52,384 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7624113475177305 [2024-11-19 05:49:52,384 INFO L175 Difference]: Start difference. First operand has 402 places, 1140 transitions, 25236 flow. Second operand 15 states and 1075 transitions. [2024-11-19 05:49:52,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 1346 transitions, 31395 flow [2024-11-19 05:49:54,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 1346 transitions, 31102 flow, removed 29 selfloop flow, removed 9 redundant places. [2024-11-19 05:49:54,044 INFO L231 Difference]: Finished difference. Result has 414 places, 1189 transitions, 27758 flow [2024-11-19 05:49:54,044 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=24961, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=344, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=761, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=27758, PETRI_PLACES=414, PETRI_TRANSITIONS=1189} [2024-11-19 05:49:54,045 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 322 predicate places. [2024-11-19 05:49:54,045 INFO L471 AbstractCegarLoop]: Abstraction has has 414 places, 1189 transitions, 27758 flow [2024-11-19 05:49:54,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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) [2024-11-19 05:49:54,046 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:54,046 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] [2024-11-19 05:49:54,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 05:49:54,046 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:54,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:54,046 INFO L85 PathProgramCache]: Analyzing trace with hash -412887781, now seen corresponding path program 6 times [2024-11-19 05:49:54,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:54,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894523887] [2024-11-19 05:49:54,046 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 05:49:54,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:54,056 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 05:49:54,056 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:54,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:54,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:54,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894523887] [2024-11-19 05:49:54,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894523887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:54,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:54,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:54,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059986232] [2024-11-19 05:49:54,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:54,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:54,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:54,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:54,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156