./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 023d838f 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.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:28:13,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:28:13,687 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:28:13,693 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:28:13,694 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:28:13,716 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:28:13,718 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:28:13,719 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:28:13,719 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:28:13,721 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:28:13,721 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:28:13,721 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:28:13,722 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:28:13,722 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:28:13,725 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:28:13,725 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:28:13,725 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:28:13,725 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:28:13,725 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:28:13,726 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:28:13,726 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:28:13,726 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:28:13,727 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:28:13,727 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:28:13,727 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:28:13,727 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:28:13,727 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:28:13,727 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:28:13,728 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:28:13,728 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:28:13,728 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:28:13,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:28:13,729 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:28:13,729 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:28:13,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:28:13,730 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:28:13,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:28:13,730 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:28:13,730 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:28:13,730 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:28:13,731 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:28:13,731 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2024-11-10 14:28:13,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:28:13,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:28:13,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:28:13,989 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:28:13,990 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:28:13,991 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2024-11-10 14:28:15,214 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:28:15,427 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:28:15,428 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2024-11-10 14:28:15,444 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c0847b1a/ad30578800134d9487f9b373d5e699c8/FLAG7f6432a73 [2024-11-10 14:28:15,770 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c0847b1a/ad30578800134d9487f9b373d5e699c8 [2024-11-10 14:28:15,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:28:15,773 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:28:15,776 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:28:15,777 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:28:15,781 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:28:15,781 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:28:15" (1/1) ... [2024-11-10 14:28:15,782 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@386f3527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:15, skipping insertion in model container [2024-11-10 14:28:15,782 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:28:15" (1/1) ... [2024-11-10 14:28:15,834 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:28:16,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:28:16,238 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:28:16,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:28:16,349 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:28:16,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:16 WrapperNode [2024-11-10 14:28:16,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:28:16,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:28:16,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:28:16,352 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:28:16,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:16" (1/1) ... [2024-11-10 14:28:16,425 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:16" (1/1) ... [2024-11-10 14:28:16,486 INFO L138 Inliner]: procedures = 263, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2024-11-10 14:28:16,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:28:16,488 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:28:16,488 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:28:16,488 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:28:16,498 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:16" (1/1) ... [2024-11-10 14:28:16,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:16" (1/1) ... [2024-11-10 14:28:16,502 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:16" (1/1) ... [2024-11-10 14:28:16,506 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:16" (1/1) ... [2024-11-10 14:28:16,515 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:16" (1/1) ... [2024-11-10 14:28:16,516 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:16" (1/1) ... [2024-11-10 14:28:16,518 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:16" (1/1) ... [2024-11-10 14:28:16,519 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:16" (1/1) ... [2024-11-10 14:28:16,524 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:28:16,524 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:28:16,524 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:28:16,524 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:28:16,525 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:16" (1/1) ... [2024-11-10 14:28:16,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:28:16,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:28:16,562 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) [2024-11-10 14:28:16,567 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 [2024-11-10 14:28:16,612 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 14:28:16,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:28:16,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:28:16,612 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 14:28:16,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:28:16,612 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 14:28:16,612 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 14:28:16,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:28:16,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:28:16,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:28:16,614 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:28:16,730 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:28:16,733 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:28:16,931 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:28:16,932 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:28:16,958 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:28:16,958 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:28:16,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:28:16 BoogieIcfgContainer [2024-11-10 14:28:16,959 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:28:16,960 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:28:16,960 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:28:16,963 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:28:16,963 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:28:15" (1/3) ... [2024-11-10 14:28:16,964 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42208515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:28:16, skipping insertion in model container [2024-11-10 14:28:16,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:28:16" (2/3) ... [2024-11-10 14:28:16,964 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42208515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:28:16, skipping insertion in model container [2024-11-10 14:28:16,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:28:16" (3/3) ... [2024-11-10 14:28:16,965 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2024-11-10 14:28:16,978 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:28:16,979 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-10 14:28:16,979 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:28:17,031 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 14:28:17,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 94 transitions, 195 flow [2024-11-10 14:28:17,101 INFO L124 PetriNetUnfolderBase]: 0/93 cut-off events. [2024-11-10 14:28:17,101 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:28:17,105 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 69 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. [2024-11-10 14:28:17,106 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 94 transitions, 195 flow [2024-11-10 14:28:17,108 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 88 transitions, 179 flow [2024-11-10 14:28:17,115 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:28:17,120 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;@33e4706b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:28:17,121 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-10 14:28:17,132 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:28:17,132 INFO L124 PetriNetUnfolderBase]: 0/54 cut-off events. [2024-11-10 14:28:17,132 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:28:17,132 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:17,133 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] [2024-11-10 14:28:17,133 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:28:17,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:17,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1398308857, now seen corresponding path program 1 times [2024-11-10 14:28:17,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:17,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659585532] [2024-11-10 14:28:17,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:17,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:17,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:17,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:17,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659585532] [2024-11-10 14:28:17,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659585532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:17,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:17,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:28:17,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229216783] [2024-11-10 14:28:17,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:17,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:28:17,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:17,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:28:17,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:28:18,024 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 94 [2024-11-10 14:28:18,027 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) [2024-11-10 14:28:18,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:18,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 94 [2024-11-10 14:28:18,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:18,231 INFO L124 PetriNetUnfolderBase]: 114/471 cut-off events. [2024-11-10 14:28:18,232 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:28:18,235 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 2436 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. [2024-11-10 14:28:18,239 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 30 selfloop transitions, 22 changer transitions 0/117 dead transitions. [2024-11-10 14:28:18,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 117 transitions, 341 flow [2024-11-10 14:28:18,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:28:18,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:28:18,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 473 transitions. [2024-11-10 14:28:18,254 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8386524822695035 [2024-11-10 14:28:18,257 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 179 flow. Second operand 6 states and 473 transitions. [2024-11-10 14:28:18,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 117 transitions, 341 flow [2024-11-10 14:28:18,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 117 transitions, 340 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:28:18,265 INFO L231 Difference]: Finished difference. Result has 101 places, 109 transitions, 328 flow [2024-11-10 14:28:18,267 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} [2024-11-10 14:28:18,270 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 9 predicate places. [2024-11-10 14:28:18,271 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 109 transitions, 328 flow [2024-11-10 14:28:18,271 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) [2024-11-10 14:28:18,271 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:18,272 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] [2024-11-10 14:28:18,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:28:18,272 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:28:18,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:18,273 INFO L85 PathProgramCache]: Analyzing trace with hash -729830990, now seen corresponding path program 1 times [2024-11-10 14:28:18,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:18,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595810572] [2024-11-10 14:28:18,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:18,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:18,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:18,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:18,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:18,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595810572] [2024-11-10 14:28:18,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595810572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:18,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:18,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:28:18,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763256068] [2024-11-10 14:28:18,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:18,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:28:18,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:18,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:28:18,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:28:18,590 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 94 [2024-11-10 14:28:18,591 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) [2024-11-10 14:28:18,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:18,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 94 [2024-11-10 14:28:18,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:18,751 INFO L124 PetriNetUnfolderBase]: 152/588 cut-off events. [2024-11-10 14:28:18,752 INFO L125 PetriNetUnfolderBase]: For 136/155 co-relation queries the response was YES. [2024-11-10 14:28:18,757 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 3335 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. [2024-11-10 14:28:18,760 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 43 selfloop transitions, 26 changer transitions 0/138 dead transitions. [2024-11-10 14:28:18,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 138 transitions, 542 flow [2024-11-10 14:28:18,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:28:18,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:28:18,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 473 transitions. [2024-11-10 14:28:18,764 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8386524822695035 [2024-11-10 14:28:18,764 INFO L175 Difference]: Start difference. First operand has 101 places, 109 transitions, 328 flow. Second operand 6 states and 473 transitions. [2024-11-10 14:28:18,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 138 transitions, 542 flow [2024-11-10 14:28:18,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 138 transitions, 542 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:28:18,774 INFO L231 Difference]: Finished difference. Result has 111 places, 130 transitions, 512 flow [2024-11-10 14:28:18,775 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} [2024-11-10 14:28:18,775 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 19 predicate places. [2024-11-10 14:28:18,776 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 130 transitions, 512 flow [2024-11-10 14:28:18,776 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) [2024-11-10 14:28:18,776 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:18,777 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] [2024-11-10 14:28:18,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:28:18,777 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:28:18,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:18,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1756119269, now seen corresponding path program 1 times [2024-11-10 14:28:18,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:18,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562011981] [2024-11-10 14:28:18,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:18,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:18,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:18,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:18,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562011981] [2024-11-10 14:28:18,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562011981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:18,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:18,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:28:18,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519286928] [2024-11-10 14:28:18,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:18,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:28:18,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:18,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:28:18,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:28:19,138 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 94 [2024-11-10 14:28:19,138 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) [2024-11-10 14:28:19,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:19,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 94 [2024-11-10 14:28:19,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:19,395 INFO L124 PetriNetUnfolderBase]: 292/943 cut-off events. [2024-11-10 14:28:19,397 INFO L125 PetriNetUnfolderBase]: For 581/601 co-relation queries the response was YES. [2024-11-10 14:28:19,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2305 conditions, 943 events. 292/943 cut-off events. For 581/601 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5728 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. [2024-11-10 14:28:19,404 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 68 selfloop transitions, 53 changer transitions 4/185 dead transitions. [2024-11-10 14:28:19,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 185 transitions, 1006 flow [2024-11-10 14:28:19,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:28:19,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:28:19,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2024-11-10 14:28:19,406 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8138297872340425 [2024-11-10 14:28:19,407 INFO L175 Difference]: Start difference. First operand has 111 places, 130 transitions, 512 flow. Second operand 6 states and 459 transitions. [2024-11-10 14:28:19,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 185 transitions, 1006 flow [2024-11-10 14:28:19,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 185 transitions, 1006 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:28:19,418 INFO L231 Difference]: Finished difference. Result has 121 places, 177 transitions, 994 flow [2024-11-10 14:28:19,419 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} [2024-11-10 14:28:19,420 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 29 predicate places. [2024-11-10 14:28:19,420 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 177 transitions, 994 flow [2024-11-10 14:28:19,421 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) [2024-11-10 14:28:19,421 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:19,421 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] [2024-11-10 14:28:19,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:28:19,421 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:28:19,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:19,422 INFO L85 PathProgramCache]: Analyzing trace with hash 251911250, now seen corresponding path program 1 times [2024-11-10 14:28:19,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:19,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286325390] [2024-11-10 14:28:19,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:19,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:19,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:19,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:19,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286325390] [2024-11-10 14:28:19,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286325390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:19,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:19,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:28:19,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139388619] [2024-11-10 14:28:19,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:19,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:28:19,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:19,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:28:19,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:28:19,718 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 94 [2024-11-10 14:28:19,719 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) [2024-11-10 14:28:19,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:19,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 94 [2024-11-10 14:28:19,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:19,912 INFO L124 PetriNetUnfolderBase]: 396/1208 cut-off events. [2024-11-10 14:28:19,912 INFO L125 PetriNetUnfolderBase]: For 1632/1679 co-relation queries the response was YES. [2024-11-10 14:28:19,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3580 conditions, 1208 events. 396/1208 cut-off events. For 1632/1679 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7718 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. [2024-11-10 14:28:19,919 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 105 selfloop transitions, 61 changer transitions 10/238 dead transitions. [2024-11-10 14:28:19,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 238 transitions, 1692 flow [2024-11-10 14:28:19,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:28:19,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:28:19,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2024-11-10 14:28:19,921 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8138297872340425 [2024-11-10 14:28:19,921 INFO L175 Difference]: Start difference. First operand has 121 places, 177 transitions, 994 flow. Second operand 6 states and 459 transitions. [2024-11-10 14:28:19,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 238 transitions, 1692 flow [2024-11-10 14:28:19,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 238 transitions, 1628 flow, removed 32 selfloop flow, removed 0 redundant places. [2024-11-10 14:28:19,933 INFO L231 Difference]: Finished difference. Result has 131 places, 224 transitions, 1516 flow [2024-11-10 14:28:19,934 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} [2024-11-10 14:28:19,935 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 39 predicate places. [2024-11-10 14:28:19,935 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 224 transitions, 1516 flow [2024-11-10 14:28:19,935 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) [2024-11-10 14:28:19,935 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:19,936 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] [2024-11-10 14:28:19,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 14:28:19,936 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:28:19,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:19,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1736628291, now seen corresponding path program 1 times [2024-11-10 14:28:19,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:19,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503729493] [2024-11-10 14:28:19,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:19,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:20,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:20,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:20,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503729493] [2024-11-10 14:28:20,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503729493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:20,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:20,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:28:20,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028196742] [2024-11-10 14:28:20,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:20,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:28:20,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:20,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:28:20,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:28:20,806 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-10 14:28:20,807 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) [2024-11-10 14:28:20,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:20,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-10 14:28:20,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:21,531 INFO L124 PetriNetUnfolderBase]: 799/2301 cut-off events. [2024-11-10 14:28:21,531 INFO L125 PetriNetUnfolderBase]: For 4984/5090 co-relation queries the response was YES. [2024-11-10 14:28:21,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7874 conditions, 2301 events. 799/2301 cut-off events. For 4984/5090 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 16832 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. [2024-11-10 14:28:21,547 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 288 selfloop transitions, 75 changer transitions 29/474 dead transitions. [2024-11-10 14:28:21,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 474 transitions, 4184 flow [2024-11-10 14:28:21,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:28:21,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:28:21,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1060 transitions. [2024-11-10 14:28:21,550 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75177304964539 [2024-11-10 14:28:21,550 INFO L175 Difference]: Start difference. First operand has 131 places, 224 transitions, 1516 flow. Second operand 15 states and 1060 transitions. [2024-11-10 14:28:21,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 474 transitions, 4184 flow [2024-11-10 14:28:21,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 474 transitions, 4066 flow, removed 59 selfloop flow, removed 0 redundant places. [2024-11-10 14:28:21,580 INFO L231 Difference]: Finished difference. Result has 157 places, 284 transitions, 2335 flow [2024-11-10 14:28:21,581 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} [2024-11-10 14:28:21,583 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 65 predicate places. [2024-11-10 14:28:21,583 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 284 transitions, 2335 flow [2024-11-10 14:28:21,584 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) [2024-11-10 14:28:21,584 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:21,584 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] [2024-11-10 14:28:21,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 14:28:21,585 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:28:21,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:21,585 INFO L85 PathProgramCache]: Analyzing trace with hash -107302919, now seen corresponding path program 2 times [2024-11-10 14:28:21,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:21,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075154189] [2024-11-10 14:28:21,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:21,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:21,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:21,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:21,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075154189] [2024-11-10 14:28:21,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075154189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:21,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:21,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:28:21,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444161562] [2024-11-10 14:28:21,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:21,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:28:21,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:21,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:28:21,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:28:22,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-10 14:28:22,332 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) [2024-11-10 14:28:22,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:22,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-10 14:28:22,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:23,239 INFO L124 PetriNetUnfolderBase]: 1226/3469 cut-off events. [2024-11-10 14:28:23,240 INFO L125 PetriNetUnfolderBase]: For 11839/12083 co-relation queries the response was YES. [2024-11-10 14:28:23,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13335 conditions, 3469 events. 1226/3469 cut-off events. For 11839/12083 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 28057 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. [2024-11-10 14:28:23,268 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 296 selfloop transitions, 117 changer transitions 31/526 dead transitions. [2024-11-10 14:28:23,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 526 transitions, 5373 flow [2024-11-10 14:28:23,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 14:28:23,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 14:28:23,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1010 transitions. [2024-11-10 14:28:23,270 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7674772036474165 [2024-11-10 14:28:23,270 INFO L175 Difference]: Start difference. First operand has 157 places, 284 transitions, 2335 flow. Second operand 14 states and 1010 transitions. [2024-11-10 14:28:23,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 526 transitions, 5373 flow [2024-11-10 14:28:23,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 526 transitions, 5311 flow, removed 24 selfloop flow, removed 4 redundant places. [2024-11-10 14:28:23,328 INFO L231 Difference]: Finished difference. Result has 175 places, 356 transitions, 3732 flow [2024-11-10 14:28:23,330 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} [2024-11-10 14:28:23,331 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 83 predicate places. [2024-11-10 14:28:23,332 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 356 transitions, 3732 flow [2024-11-10 14:28:23,333 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) [2024-11-10 14:28:23,333 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:23,333 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] [2024-11-10 14:28:23,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 14:28:23,334 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:28:23,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:23,334 INFO L85 PathProgramCache]: Analyzing trace with hash -933149207, now seen corresponding path program 3 times [2024-11-10 14:28:23,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:23,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366876644] [2024-11-10 14:28:23,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:23,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:23,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:23,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:23,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366876644] [2024-11-10 14:28:23,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366876644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:23,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:23,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:28:23,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126362829] [2024-11-10 14:28:23,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:23,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:28:23,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:23,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:28:23,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:28:24,184 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-10 14:28:24,185 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) [2024-11-10 14:28:24,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:24,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-10 14:28:24,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:25,012 INFO L124 PetriNetUnfolderBase]: 1248/3490 cut-off events. [2024-11-10 14:28:25,012 INFO L125 PetriNetUnfolderBase]: For 17275/17654 co-relation queries the response was YES. [2024-11-10 14:28:25,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14748 conditions, 3490 events. 1248/3490 cut-off events. For 17275/17654 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 28173 event pairs, 77 based on Foata normal form. 128/3586 useless extension candidates. Maximal degree in co-relation 14669. Up to 1525 conditions per place. [2024-11-10 14:28:25,044 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 183 selfloop transitions, 158 changer transitions 29/452 dead transitions. [2024-11-10 14:28:25,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 452 transitions, 5407 flow [2024-11-10 14:28:25,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 14:28:25,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-10 14:28:25,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 852 transitions. [2024-11-10 14:28:25,047 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7553191489361702 [2024-11-10 14:28:25,047 INFO L175 Difference]: Start difference. First operand has 175 places, 356 transitions, 3732 flow. Second operand 12 states and 852 transitions. [2024-11-10 14:28:25,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 452 transitions, 5407 flow [2024-11-10 14:28:25,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 452 transitions, 5324 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-11-10 14:28:25,111 INFO L231 Difference]: Finished difference. Result has 184 places, 379 transitions, 4663 flow [2024-11-10 14:28:25,112 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} [2024-11-10 14:28:25,113 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 92 predicate places. [2024-11-10 14:28:25,114 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 379 transitions, 4663 flow [2024-11-10 14:28:25,114 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) [2024-11-10 14:28:25,114 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:25,115 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] [2024-11-10 14:28:25,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 14:28:25,115 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:28:25,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:25,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1437261815, now seen corresponding path program 4 times [2024-11-10 14:28:25,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:25,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635444969] [2024-11-10 14:28:25,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:25,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:25,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:25,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:25,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635444969] [2024-11-10 14:28:25,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635444969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:25,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:25,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:28:25,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147911189] [2024-11-10 14:28:25,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:25,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:28:25,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:25,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:28:25,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:28:25,900 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-10 14:28:25,901 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) [2024-11-10 14:28:25,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:25,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-10 14:28:25,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:27,286 INFO L124 PetriNetUnfolderBase]: 1570/4367 cut-off events. [2024-11-10 14:28:27,286 INFO L125 PetriNetUnfolderBase]: For 27106/27560 co-relation queries the response was YES. [2024-11-10 14:28:27,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19506 conditions, 4367 events. 1570/4367 cut-off events. For 27106/27560 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 37156 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. [2024-11-10 14:28:27,330 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 527 selfloop transitions, 150 changer transitions 17/776 dead transitions. [2024-11-10 14:28:27,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 776 transitions, 10055 flow [2024-11-10 14:28:27,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-10 14:28:27,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-10 14:28:27,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1157 transitions. [2024-11-10 14:28:27,333 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.769281914893617 [2024-11-10 14:28:27,333 INFO L175 Difference]: Start difference. First operand has 184 places, 379 transitions, 4663 flow. Second operand 16 states and 1157 transitions. [2024-11-10 14:28:27,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 776 transitions, 10055 flow [2024-11-10 14:28:27,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 776 transitions, 9889 flow, removed 10 selfloop flow, removed 7 redundant places. [2024-11-10 14:28:27,426 INFO L231 Difference]: Finished difference. Result has 202 places, 440 transitions, 6151 flow [2024-11-10 14:28:27,427 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} [2024-11-10 14:28:27,427 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 110 predicate places. [2024-11-10 14:28:27,427 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 440 transitions, 6151 flow [2024-11-10 14:28:27,428 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) [2024-11-10 14:28:27,428 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:27,428 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] [2024-11-10 14:28:27,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 14:28:27,428 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:28:27,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:27,429 INFO L85 PathProgramCache]: Analyzing trace with hash 2012365599, now seen corresponding path program 5 times [2024-11-10 14:28:27,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:27,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193984237] [2024-11-10 14:28:27,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:27,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:27,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:27,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:27,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193984237] [2024-11-10 14:28:27,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193984237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:27,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:27,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:28:27,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747562390] [2024-11-10 14:28:27,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:27,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:28:27,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:27,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:28:27,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:28:28,270 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-10 14:28:28,271 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) [2024-11-10 14:28:28,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:28,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-10 14:28:28,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:29,815 INFO L124 PetriNetUnfolderBase]: 2099/5780 cut-off events. [2024-11-10 14:28:29,816 INFO L125 PetriNetUnfolderBase]: For 47548/48277 co-relation queries the response was YES. [2024-11-10 14:28:29,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27416 conditions, 5780 events. 2099/5780 cut-off events. For 47548/48277 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 52064 event pairs, 153 based on Foata normal form. 172/5908 useless extension candidates. Maximal degree in co-relation 27325. Up to 2201 conditions per place. [2024-11-10 14:28:29,862 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 426 selfloop transitions, 221 changer transitions 21/750 dead transitions. [2024-11-10 14:28:29,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 750 transitions, 11340 flow [2024-11-10 14:28:29,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 14:28:29,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 14:28:29,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1007 transitions. [2024-11-10 14:28:29,866 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7651975683890577 [2024-11-10 14:28:29,866 INFO L175 Difference]: Start difference. First operand has 202 places, 440 transitions, 6151 flow. Second operand 14 states and 1007 transitions. [2024-11-10 14:28:29,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 750 transitions, 11340 flow [2024-11-10 14:28:30,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 750 transitions, 10974 flow, removed 81 selfloop flow, removed 7 redundant places. [2024-11-10 14:28:30,067 INFO L231 Difference]: Finished difference. Result has 217 places, 543 transitions, 8635 flow [2024-11-10 14:28:30,068 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} [2024-11-10 14:28:30,069 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 125 predicate places. [2024-11-10 14:28:30,069 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 543 transitions, 8635 flow [2024-11-10 14:28:30,070 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) [2024-11-10 14:28:30,070 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:30,070 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] [2024-11-10 14:28:30,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 14:28:30,070 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:28:30,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:30,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1717112950, now seen corresponding path program 1 times [2024-11-10 14:28:30,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:30,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020198809] [2024-11-10 14:28:30,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:30,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:30,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:30,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:30,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:30,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020198809] [2024-11-10 14:28:30,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020198809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:30,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:30,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:28:30,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072844623] [2024-11-10 14:28:30,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:30,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:28:30,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:30,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:28:30,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:28:30,721 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-10 14:28:30,723 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) [2024-11-10 14:28:30,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:30,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-10 14:28:30,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:32,273 INFO L124 PetriNetUnfolderBase]: 2617/6769 cut-off events. [2024-11-10 14:28:32,274 INFO L125 PetriNetUnfolderBase]: For 62120/62555 co-relation queries the response was YES. [2024-11-10 14:28:32,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34048 conditions, 6769 events. 2617/6769 cut-off events. For 62120/62555 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 60007 event pairs, 431 based on Foata normal form. 71/6786 useless extension candidates. Maximal degree in co-relation 33949. Up to 2208 conditions per place. [2024-11-10 14:28:32,462 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 610 selfloop transitions, 150 changer transitions 68/901 dead transitions. [2024-11-10 14:28:32,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 901 transitions, 13782 flow [2024-11-10 14:28:32,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 14:28:32,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 14:28:32,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 995 transitions. [2024-11-10 14:28:32,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.756079027355623 [2024-11-10 14:28:32,468 INFO L175 Difference]: Start difference. First operand has 217 places, 543 transitions, 8635 flow. Second operand 14 states and 995 transitions. [2024-11-10 14:28:32,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 901 transitions, 13782 flow [2024-11-10 14:28:32,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 901 transitions, 13437 flow, removed 93 selfloop flow, removed 5 redundant places. [2024-11-10 14:28:32,803 INFO L231 Difference]: Finished difference. Result has 233 places, 614 transitions, 9881 flow [2024-11-10 14:28:32,804 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} [2024-11-10 14:28:32,805 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 141 predicate places. [2024-11-10 14:28:32,806 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 614 transitions, 9881 flow [2024-11-10 14:28:32,806 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) [2024-11-10 14:28:32,806 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:32,806 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] [2024-11-10 14:28:32,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 14:28:32,807 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:28:32,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:32,807 INFO L85 PathProgramCache]: Analyzing trace with hash -729677183, now seen corresponding path program 6 times [2024-11-10 14:28:32,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:32,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787844237] [2024-11-10 14:28:32,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:32,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:33,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:33,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:33,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787844237] [2024-11-10 14:28:33,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787844237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:33,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:33,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:28:33,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611686232] [2024-11-10 14:28:33,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:33,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:28:33,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:33,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:28:33,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:28:33,583 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-10 14:28:33,584 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) [2024-11-10 14:28:33,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:33,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-10 14:28:33,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:35,246 INFO L124 PetriNetUnfolderBase]: 2102/5856 cut-off events. [2024-11-10 14:28:35,247 INFO L125 PetriNetUnfolderBase]: For 64816/65739 co-relation queries the response was YES. [2024-11-10 14:28:35,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30919 conditions, 5856 events. 2102/5856 cut-off events. For 64816/65739 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 53257 event pairs, 225 based on Foata normal form. 264/6084 useless extension candidates. Maximal degree in co-relation 30813. Up to 1541 conditions per place. [2024-11-10 14:28:35,321 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 444 selfloop transitions, 241 changer transitions 32/805 dead transitions. [2024-11-10 14:28:35,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 805 transitions, 13673 flow [2024-11-10 14:28:35,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:28:35,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:28:35,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1075 transitions. [2024-11-10 14:28:35,328 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7624113475177305 [2024-11-10 14:28:35,328 INFO L175 Difference]: Start difference. First operand has 233 places, 614 transitions, 9881 flow. Second operand 15 states and 1075 transitions. [2024-11-10 14:28:35,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 805 transitions, 13673 flow [2024-11-10 14:28:35,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 805 transitions, 13557 flow, removed 51 selfloop flow, removed 3 redundant places. [2024-11-10 14:28:35,736 INFO L231 Difference]: Finished difference. Result has 249 places, 646 transitions, 11420 flow [2024-11-10 14:28:35,736 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=209, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=11420, PETRI_PLACES=249, PETRI_TRANSITIONS=646} [2024-11-10 14:28:35,737 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 157 predicate places. [2024-11-10 14:28:35,737 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 646 transitions, 11420 flow [2024-11-10 14:28:35,738 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) [2024-11-10 14:28:35,738 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:35,738 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] [2024-11-10 14:28:35,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 14:28:35,738 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:28:35,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:35,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1137321387, now seen corresponding path program 7 times [2024-11-10 14:28:35,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:35,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957478199] [2024-11-10 14:28:35,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:35,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:36,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:36,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:36,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957478199] [2024-11-10 14:28:36,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957478199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:36,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:36,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:28:36,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152110454] [2024-11-10 14:28:36,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:36,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:28:36,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:36,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:28:36,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:28:36,418 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-10 14:28:36,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 646 transitions, 11420 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) [2024-11-10 14:28:36,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:36,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-10 14:28:36,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:38,012 INFO L124 PetriNetUnfolderBase]: 2422/6765 cut-off events. [2024-11-10 14:28:38,012 INFO L125 PetriNetUnfolderBase]: For 84821/85792 co-relation queries the response was YES. [2024-11-10 14:28:38,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36397 conditions, 6765 events. 2422/6765 cut-off events. For 84821/85792 co-relation queries the response was YES. Maximal size of possible extension queue 375. Compared 63520 event pairs, 231 based on Foata normal form. 233/6958 useless extension candidates. Maximal degree in co-relation 36285. Up to 1838 conditions per place. [2024-11-10 14:28:38,113 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 594 selfloop transitions, 248 changer transitions 19/949 dead transitions. [2024-11-10 14:28:38,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 949 transitions, 16607 flow [2024-11-10 14:28:38,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:28:38,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:28:38,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1074 transitions. [2024-11-10 14:28:38,116 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7617021276595745 [2024-11-10 14:28:38,116 INFO L175 Difference]: Start difference. First operand has 249 places, 646 transitions, 11420 flow. Second operand 15 states and 1074 transitions. [2024-11-10 14:28:38,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 949 transitions, 16607 flow [2024-11-10 14:28:38,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 949 transitions, 16218 flow, removed 50 selfloop flow, removed 10 redundant places. [2024-11-10 14:28:38,632 INFO L231 Difference]: Finished difference. Result has 264 places, 707 transitions, 13309 flow [2024-11-10 14:28:38,633 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=11104, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=646, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=187, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=13309, PETRI_PLACES=264, PETRI_TRANSITIONS=707} [2024-11-10 14:28:38,633 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 172 predicate places. [2024-11-10 14:28:38,634 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 707 transitions, 13309 flow [2024-11-10 14:28:38,634 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) [2024-11-10 14:28:38,634 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:38,634 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] [2024-11-10 14:28:38,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 14:28:38,634 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:28:38,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:38,635 INFO L85 PathProgramCache]: Analyzing trace with hash -2138079315, now seen corresponding path program 8 times [2024-11-10 14:28:38,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:38,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996249021] [2024-11-10 14:28:38,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:38,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:38,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:38,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:38,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996249021] [2024-11-10 14:28:38,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996249021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:38,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:38,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:28:38,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5087037] [2024-11-10 14:28:38,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:38,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:28:38,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:38,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:28:38,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:28:39,324 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-10 14:28:39,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 707 transitions, 13309 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) [2024-11-10 14:28:39,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:39,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-10 14:28:39,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:41,097 INFO L124 PetriNetUnfolderBase]: 2466/6832 cut-off events. [2024-11-10 14:28:41,097 INFO L125 PetriNetUnfolderBase]: For 100281/101487 co-relation queries the response was YES. [2024-11-10 14:28:41,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38410 conditions, 6832 events. 2466/6832 cut-off events. For 100281/101487 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 64133 event pairs, 235 based on Foata normal form. 275/7070 useless extension candidates. Maximal degree in co-relation 38288. Up to 2017 conditions per place. [2024-11-10 14:28:41,194 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 630 selfloop transitions, 243 changer transitions 18/979 dead transitions. [2024-11-10 14:28:41,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 979 transitions, 18215 flow [2024-11-10 14:28:41,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:28:41,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:28:41,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1078 transitions. [2024-11-10 14:28:41,196 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7645390070921986 [2024-11-10 14:28:41,196 INFO L175 Difference]: Start difference. First operand has 264 places, 707 transitions, 13309 flow. Second operand 15 states and 1078 transitions. [2024-11-10 14:28:41,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 979 transitions, 18215 flow [2024-11-10 14:28:41,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 979 transitions, 17830 flow, removed 136 selfloop flow, removed 5 redundant places. [2024-11-10 14:28:41,781 INFO L231 Difference]: Finished difference. Result has 281 places, 733 transitions, 14188 flow [2024-11-10 14:28:41,782 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=12955, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=707, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=14188, PETRI_PLACES=281, PETRI_TRANSITIONS=733} [2024-11-10 14:28:41,783 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 189 predicate places. [2024-11-10 14:28:41,784 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 733 transitions, 14188 flow [2024-11-10 14:28:41,785 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) [2024-11-10 14:28:41,785 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:41,785 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] [2024-11-10 14:28:41,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 14:28:41,786 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:28:41,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:41,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1355204558, now seen corresponding path program 2 times [2024-11-10 14:28:41,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:41,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219859623] [2024-11-10 14:28:41,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:41,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:42,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:42,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:42,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219859623] [2024-11-10 14:28:42,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219859623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:42,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:42,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:28:42,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097204846] [2024-11-10 14:28:42,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:42,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:28:42,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:42,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:28:42,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:28:42,262 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-10 14:28:42,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 733 transitions, 14188 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) [2024-11-10 14:28:42,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:42,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-10 14:28:42,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:44,527 INFO L124 PetriNetUnfolderBase]: 3148/8142 cut-off events. [2024-11-10 14:28:44,527 INFO L125 PetriNetUnfolderBase]: For 119396/119917 co-relation queries the response was YES. [2024-11-10 14:28:44,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47209 conditions, 8142 events. 3148/8142 cut-off events. For 119396/119917 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 75082 event pairs, 562 based on Foata normal form. 112/8184 useless extension candidates. Maximal degree in co-relation 47081. Up to 2903 conditions per place. [2024-11-10 14:28:44,653 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 697 selfloop transitions, 207 changer transitions 53/1035 dead transitions. [2024-11-10 14:28:44,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 1035 transitions, 19148 flow [2024-11-10 14:28:44,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:28:44,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:28:44,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1052 transitions. [2024-11-10 14:28:44,655 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7460992907801418 [2024-11-10 14:28:44,655 INFO L175 Difference]: Start difference. First operand has 281 places, 733 transitions, 14188 flow. Second operand 15 states and 1052 transitions. [2024-11-10 14:28:44,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 1035 transitions, 19148 flow [2024-11-10 14:28:45,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 1035 transitions, 18477 flow, removed 108 selfloop flow, removed 11 redundant places. [2024-11-10 14:28:45,427 INFO L231 Difference]: Finished difference. Result has 290 places, 752 transitions, 14525 flow [2024-11-10 14:28:45,428 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=13566, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=733, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=188, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=14525, PETRI_PLACES=290, PETRI_TRANSITIONS=752} [2024-11-10 14:28:45,429 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 198 predicate places. [2024-11-10 14:28:45,429 INFO L471 AbstractCegarLoop]: Abstraction has has 290 places, 752 transitions, 14525 flow [2024-11-10 14:28:45,429 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) [2024-11-10 14:28:45,429 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:45,429 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] [2024-11-10 14:28:45,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 14:28:45,430 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:28:45,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:45,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1505074504, now seen corresponding path program 3 times [2024-11-10 14:28:45,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:45,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775710201] [2024-11-10 14:28:45,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:45,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:45,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:45,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:45,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775710201] [2024-11-10 14:28:45,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775710201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:45,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:45,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:28:45,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372987204] [2024-11-10 14:28:45,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:45,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:28:45,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:45,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:28:45,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:28:45,965 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-10 14:28:45,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 752 transitions, 14525 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) [2024-11-10 14:28:45,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:45,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-10 14:28:45,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:48,252 INFO L124 PetriNetUnfolderBase]: 3206/8291 cut-off events. [2024-11-10 14:28:48,252 INFO L125 PetriNetUnfolderBase]: For 119970/120468 co-relation queries the response was YES. [2024-11-10 14:28:48,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49415 conditions, 8291 events. 3206/8291 cut-off events. For 119970/120468 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 76666 event pairs, 490 based on Foata normal form. 108/8336 useless extension candidates. Maximal degree in co-relation 49284. Up to 2903 conditions per place. [2024-11-10 14:28:48,377 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 956 selfloop transitions, 140 changer transitions 44/1218 dead transitions. [2024-11-10 14:28:48,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 1218 transitions, 22165 flow [2024-11-10 14:28:48,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:28:48,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:28:48,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1059 transitions. [2024-11-10 14:28:48,379 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7510638297872341 [2024-11-10 14:28:48,379 INFO L175 Difference]: Start difference. First operand has 290 places, 752 transitions, 14525 flow. Second operand 15 states and 1059 transitions. [2024-11-10 14:28:48,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 1218 transitions, 22165 flow [2024-11-10 14:28:49,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 1218 transitions, 21871 flow, removed 23 selfloop flow, removed 10 redundant places. [2024-11-10 14:28:49,354 INFO L231 Difference]: Finished difference. Result has 302 places, 811 transitions, 15829 flow [2024-11-10 14:28:49,355 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=14295, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=752, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=617, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=15829, PETRI_PLACES=302, PETRI_TRANSITIONS=811} [2024-11-10 14:28:49,355 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 210 predicate places. [2024-11-10 14:28:49,355 INFO L471 AbstractCegarLoop]: Abstraction has has 302 places, 811 transitions, 15829 flow [2024-11-10 14:28:49,355 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) [2024-11-10 14:28:49,355 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:49,355 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] [2024-11-10 14:28:49,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 14:28:49,356 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:28:49,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:49,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1153084856, now seen corresponding path program 4 times [2024-11-10 14:28:49,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:49,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49294509] [2024-11-10 14:28:49,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:49,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:49,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:49,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:49,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49294509] [2024-11-10 14:28:49,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49294509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:49,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:49,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:28:49,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218951185] [2024-11-10 14:28:49,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:49,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:28:49,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:49,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:28:49,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:28:49,948 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-10 14:28:49,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 811 transitions, 15829 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) [2024-11-10 14:28:49,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:49,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-10 14:28:49,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:52,514 INFO L124 PetriNetUnfolderBase]: 3258/8468 cut-off events. [2024-11-10 14:28:52,514 INFO L125 PetriNetUnfolderBase]: For 128838/129342 co-relation queries the response was YES. [2024-11-10 14:28:52,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51940 conditions, 8468 events. 3258/8468 cut-off events. For 128838/129342 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 78827 event pairs, 559 based on Foata normal form. 130/8532 useless extension candidates. Maximal degree in co-relation 51802. Up to 2907 conditions per place. [2024-11-10 14:28:52,624 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 780 selfloop transitions, 249 changer transitions 38/1145 dead transitions. [2024-11-10 14:28:52,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 1145 transitions, 21785 flow [2024-11-10 14:28:52,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:28:52,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:28:52,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1054 transitions. [2024-11-10 14:28:52,626 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7475177304964539 [2024-11-10 14:28:52,626 INFO L175 Difference]: Start difference. First operand has 302 places, 811 transitions, 15829 flow. Second operand 15 states and 1054 transitions. [2024-11-10 14:28:52,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 1145 transitions, 21785 flow [2024-11-10 14:28:53,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 1145 transitions, 21530 flow, removed 58 selfloop flow, removed 9 redundant places. [2024-11-10 14:28:53,634 INFO L231 Difference]: Finished difference. Result has 314 places, 850 transitions, 17255 flow [2024-11-10 14:28:53,635 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=15635, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=811, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=216, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=571, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=17255, PETRI_PLACES=314, PETRI_TRANSITIONS=850} [2024-11-10 14:28:53,635 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 222 predicate places. [2024-11-10 14:28:53,635 INFO L471 AbstractCegarLoop]: Abstraction has has 314 places, 850 transitions, 17255 flow [2024-11-10 14:28:53,636 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) [2024-11-10 14:28:53,636 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:53,636 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] [2024-11-10 14:28:53,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 14:28:53,636 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:28:53,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:53,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1299655422, now seen corresponding path program 1 times [2024-11-10 14:28:53,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:53,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105275127] [2024-11-10 14:28:53,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:53,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:53,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:53,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:53,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105275127] [2024-11-10 14:28:53,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105275127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:53,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:53,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:28:53,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242067255] [2024-11-10 14:28:53,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:53,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:28:53,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:53,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:28:53,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:28:54,377 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-10 14:28:54,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 850 transitions, 17255 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) [2024-11-10 14:28:54,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:54,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-10 14:28:54,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:57,013 INFO L124 PetriNetUnfolderBase]: 2758/7661 cut-off events. [2024-11-10 14:28:57,013 INFO L125 PetriNetUnfolderBase]: For 132307/133207 co-relation queries the response was YES. [2024-11-10 14:28:57,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46892 conditions, 7661 events. 2758/7661 cut-off events. For 132307/133207 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 73303 event pairs, 243 based on Foata normal form. 190/7804 useless extension candidates. Maximal degree in co-relation 46749. Up to 1994 conditions per place. [2024-11-10 14:28:57,161 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 685 selfloop transitions, 197 changer transitions 25/1194 dead transitions. [2024-11-10 14:28:57,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 1194 transitions, 23031 flow [2024-11-10 14:28:57,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:28:57,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:28:57,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1099 transitions. [2024-11-10 14:28:57,163 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7794326241134751 [2024-11-10 14:28:57,163 INFO L175 Difference]: Start difference. First operand has 314 places, 850 transitions, 17255 flow. Second operand 15 states and 1099 transitions. [2024-11-10 14:28:57,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 1194 transitions, 23031 flow [2024-11-10 14:28:58,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 1194 transitions, 22656 flow, removed 64 selfloop flow, removed 10 redundant places. [2024-11-10 14:28:58,207 INFO L231 Difference]: Finished difference. Result has 327 places, 959 transitions, 19498 flow [2024-11-10 14:28:58,207 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=16902, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=850, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=698, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=19498, PETRI_PLACES=327, PETRI_TRANSITIONS=959} [2024-11-10 14:28:58,208 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 235 predicate places. [2024-11-10 14:28:58,208 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 959 transitions, 19498 flow [2024-11-10 14:28:58,208 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) [2024-11-10 14:28:58,208 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:58,208 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] [2024-11-10 14:28:58,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 14:28:58,208 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:28:58,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:58,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1916496398, now seen corresponding path program 5 times [2024-11-10 14:28:58,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:58,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058809628] [2024-11-10 14:28:58,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:58,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:58,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:58,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:58,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058809628] [2024-11-10 14:28:58,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058809628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:58,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:58,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:28:58,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071951891] [2024-11-10 14:28:58,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:58,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:28:58,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:58,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:28:58,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:28:59,018 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-10 14:28:59,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 959 transitions, 19498 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) [2024-11-10 14:28:59,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:59,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-10 14:28:59,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:02,645 INFO L124 PetriNetUnfolderBase]: 3401/8887 cut-off events. [2024-11-10 14:29:02,645 INFO L125 PetriNetUnfolderBase]: For 148775/149362 co-relation queries the response was YES. [2024-11-10 14:29:02,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56424 conditions, 8887 events. 3401/8887 cut-off events. For 148775/149362 co-relation queries the response was YES. Maximal size of possible extension queue 436. Compared 83811 event pairs, 609 based on Foata normal form. 141/8956 useless extension candidates. Maximal degree in co-relation 56274. Up to 2912 conditions per place. [2024-11-10 14:29:02,741 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 882 selfloop transitions, 278 changer transitions 36/1274 dead transitions. [2024-11-10 14:29:02,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 1274 transitions, 25789 flow [2024-11-10 14:29:02,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:29:02,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:29:02,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1054 transitions. [2024-11-10 14:29:02,742 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7475177304964539 [2024-11-10 14:29:02,743 INFO L175 Difference]: Start difference. First operand has 327 places, 959 transitions, 19498 flow. Second operand 15 states and 1054 transitions. [2024-11-10 14:29:02,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 1274 transitions, 25789 flow [2024-11-10 14:29:03,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 1274 transitions, 25685 flow, removed 45 selfloop flow, removed 3 redundant places. [2024-11-10 14:29:03,920 INFO L231 Difference]: Finished difference. Result has 345 places, 1001 transitions, 21089 flow [2024-11-10 14:29:03,921 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=19396, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=959, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=236, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=685, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=21089, PETRI_PLACES=345, PETRI_TRANSITIONS=1001} [2024-11-10 14:29:03,922 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 253 predicate places. [2024-11-10 14:29:03,922 INFO L471 AbstractCegarLoop]: Abstraction has has 345 places, 1001 transitions, 21089 flow [2024-11-10 14:29:03,923 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) [2024-11-10 14:29:03,923 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:03,923 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] [2024-11-10 14:29:03,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 14:29:03,923 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:03,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:03,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1851615412, now seen corresponding path program 2 times [2024-11-10 14:29:03,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:03,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573246674] [2024-11-10 14:29:03,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:03,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:04,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:04,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:04,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573246674] [2024-11-10 14:29:04,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573246674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:04,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:04,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:04,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062120549] [2024-11-10 14:29:04,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:04,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:04,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:04,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:04,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:04,515 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-10 14:29:04,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 1001 transitions, 21089 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) [2024-11-10 14:29:04,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:04,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-10 14:29:04,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:07,367 INFO L124 PetriNetUnfolderBase]: 2740/7677 cut-off events. [2024-11-10 14:29:07,367 INFO L125 PetriNetUnfolderBase]: For 154304/155241 co-relation queries the response was YES. [2024-11-10 14:29:07,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49700 conditions, 7677 events. 2740/7677 cut-off events. For 154304/155241 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 73880 event pairs, 225 based on Foata normal form. 191/7825 useless extension candidates. Maximal degree in co-relation 49543. Up to 1998 conditions per place. [2024-11-10 14:29:07,518 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 783 selfloop transitions, 192 changer transitions 24/1292 dead transitions. [2024-11-10 14:29:07,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 1292 transitions, 26143 flow [2024-11-10 14:29:07,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:29:07,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:29:07,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1099 transitions. [2024-11-10 14:29:07,519 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7794326241134751 [2024-11-10 14:29:07,519 INFO L175 Difference]: Start difference. First operand has 345 places, 1001 transitions, 21089 flow. Second operand 15 states and 1099 transitions. [2024-11-10 14:29:07,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 1292 transitions, 26143 flow [2024-11-10 14:29:08,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 1292 transitions, 25845 flow, removed 79 selfloop flow, removed 8 redundant places. [2024-11-10 14:29:08,842 INFO L231 Difference]: Finished difference. Result has 359 places, 1033 transitions, 21867 flow [2024-11-10 14:29:08,843 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=20800, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1001, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=159, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=811, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=21867, PETRI_PLACES=359, PETRI_TRANSITIONS=1033} [2024-11-10 14:29:08,843 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 267 predicate places. [2024-11-10 14:29:08,843 INFO L471 AbstractCegarLoop]: Abstraction has has 359 places, 1033 transitions, 21867 flow [2024-11-10 14:29:08,844 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) [2024-11-10 14:29:08,844 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:08,844 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] [2024-11-10 14:29:08,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 14:29:08,844 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:08,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:08,844 INFO L85 PathProgramCache]: Analyzing trace with hash -288798221, now seen corresponding path program 1 times [2024-11-10 14:29:08,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:08,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042882059] [2024-11-10 14:29:08,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:08,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:08,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:09,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:09,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:09,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042882059] [2024-11-10 14:29:09,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042882059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:09,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:09,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:09,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107924068] [2024-11-10 14:29:09,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:09,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:09,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:09,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:09,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:09,347 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-10 14:29:09,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 1033 transitions, 21867 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) [2024-11-10 14:29:09,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:09,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-10 14:29:09,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:12,758 INFO L124 PetriNetUnfolderBase]: 3346/8777 cut-off events. [2024-11-10 14:29:12,758 INFO L125 PetriNetUnfolderBase]: For 173931/174583 co-relation queries the response was YES. [2024-11-10 14:29:12,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59051 conditions, 8777 events. 3346/8777 cut-off events. For 173931/174583 co-relation queries the response was YES. Maximal size of possible extension queue 438. Compared 82828 event pairs, 565 based on Foata normal form. 99/8817 useless extension candidates. Maximal degree in co-relation 58887. Up to 2975 conditions per place. [2024-11-10 14:29:12,924 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 1100 selfloop transitions, 165 changer transitions 69/1416 dead transitions. [2024-11-10 14:29:12,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 1416 transitions, 29372 flow [2024-11-10 14:29:12,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-10 14:29:12,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-10 14:29:12,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1119 transitions. [2024-11-10 14:29:12,925 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7440159574468085 [2024-11-10 14:29:12,925 INFO L175 Difference]: Start difference. First operand has 359 places, 1033 transitions, 21867 flow. Second operand 16 states and 1119 transitions. [2024-11-10 14:29:12,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 1416 transitions, 29372 flow [2024-11-10 14:29:14,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 1416 transitions, 29067 flow, removed 65 selfloop flow, removed 7 redundant places. [2024-11-10 14:29:14,420 INFO L231 Difference]: Finished difference. Result has 375 places, 1087 transitions, 22811 flow [2024-11-10 14:29:14,421 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=21630, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1033, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=899, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=22811, PETRI_PLACES=375, PETRI_TRANSITIONS=1087} [2024-11-10 14:29:14,421 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 283 predicate places. [2024-11-10 14:29:14,421 INFO L471 AbstractCegarLoop]: Abstraction has has 375 places, 1087 transitions, 22811 flow [2024-11-10 14:29:14,422 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) [2024-11-10 14:29:14,422 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:14,422 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] [2024-11-10 14:29:14,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 14:29:14,422 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:14,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:14,422 INFO L85 PathProgramCache]: Analyzing trace with hash -2017130238, now seen corresponding path program 3 times [2024-11-10 14:29:14,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:14,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959136191] [2024-11-10 14:29:14,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:14,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:14,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:14,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:14,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959136191] [2024-11-10 14:29:14,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959136191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:14,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:14,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:14,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199945961] [2024-11-10 14:29:14,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:14,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:14,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:14,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:14,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:14,980 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-10 14:29:14,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 1087 transitions, 22811 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) [2024-11-10 14:29:14,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:14,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-10 14:29:14,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:17,444 INFO L124 PetriNetUnfolderBase]: 2676/7584 cut-off events. [2024-11-10 14:29:17,444 INFO L125 PetriNetUnfolderBase]: For 172096/173045 co-relation queries the response was YES. [2024-11-10 14:29:17,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51816 conditions, 7584 events. 2676/7584 cut-off events. For 172096/173045 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 73082 event pairs, 260 based on Foata normal form. 231/7778 useless extension candidates. Maximal degree in co-relation 51645. Up to 1991 conditions per place. [2024-11-10 14:29:17,594 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 736 selfloop transitions, 227 changer transitions 28/1295 dead transitions. [2024-11-10 14:29:17,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 1295 transitions, 27633 flow [2024-11-10 14:29:17,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 14:29:17,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 14:29:17,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1027 transitions. [2024-11-10 14:29:17,596 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7803951367781155 [2024-11-10 14:29:17,596 INFO L175 Difference]: Start difference. First operand has 375 places, 1087 transitions, 22811 flow. Second operand 14 states and 1027 transitions. [2024-11-10 14:29:17,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 1295 transitions, 27633 flow [2024-11-10 14:29:18,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 1295 transitions, 27441 flow, removed 72 selfloop flow, removed 5 redundant places. [2024-11-10 14:29:18,946 INFO L231 Difference]: Finished difference. Result has 390 places, 1107 transitions, 24095 flow [2024-11-10 14:29:18,947 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=22619, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1087, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=207, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=869, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=24095, PETRI_PLACES=390, PETRI_TRANSITIONS=1107} [2024-11-10 14:29:18,948 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 298 predicate places. [2024-11-10 14:29:18,948 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 1107 transitions, 24095 flow [2024-11-10 14:29:18,948 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) [2024-11-10 14:29:18,948 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:18,948 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] [2024-11-10 14:29:18,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 14:29:18,949 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:18,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:18,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1606726334, now seen corresponding path program 4 times [2024-11-10 14:29:18,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:18,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409494407] [2024-11-10 14:29:18,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:18,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:19,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:19,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:19,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409494407] [2024-11-10 14:29:19,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409494407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:19,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:19,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:19,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893266909] [2024-11-10 14:29:19,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:19,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:19,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:19,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:19,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:19,506 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-10 14:29:19,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 1107 transitions, 24095 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) [2024-11-10 14:29:19,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:19,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-10 14:29:19,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:22,200 INFO L124 PetriNetUnfolderBase]: 2712/7711 cut-off events. [2024-11-10 14:29:22,200 INFO L125 PetriNetUnfolderBase]: For 184490/185446 co-relation queries the response was YES. [2024-11-10 14:29:22,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53967 conditions, 7711 events. 2712/7711 cut-off events. For 184490/185446 co-relation queries the response was YES. Maximal size of possible extension queue 431. Compared 74706 event pairs, 259 based on Foata normal form. 237/7914 useless extension candidates. Maximal degree in co-relation 53791. Up to 1992 conditions per place. [2024-11-10 14:29:22,339 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 775 selfloop transitions, 254 changer transitions 21/1354 dead transitions. [2024-11-10 14:29:22,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 1354 transitions, 29828 flow [2024-11-10 14:29:22,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:29:22,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:29:22,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1097 transitions. [2024-11-10 14:29:22,341 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7780141843971631 [2024-11-10 14:29:22,341 INFO L175 Difference]: Start difference. First operand has 390 places, 1107 transitions, 24095 flow. Second operand 15 states and 1097 transitions. [2024-11-10 14:29:22,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 1354 transitions, 29828 flow [2024-11-10 14:29:23,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 1354 transitions, 29574 flow, removed 7 selfloop flow, removed 9 redundant places. [2024-11-10 14:29:23,654 INFO L231 Difference]: Finished difference. Result has 401 places, 1146 transitions, 25797 flow [2024-11-10 14:29:23,655 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=23857, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=216, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=865, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25797, PETRI_PLACES=401, PETRI_TRANSITIONS=1146} [2024-11-10 14:29:23,655 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 309 predicate places. [2024-11-10 14:29:23,655 INFO L471 AbstractCegarLoop]: Abstraction has has 401 places, 1146 transitions, 25797 flow [2024-11-10 14:29:23,656 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) [2024-11-10 14:29:23,656 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:23,656 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] [2024-11-10 14:29:23,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-10 14:29:23,656 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:23,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:23,656 INFO L85 PathProgramCache]: Analyzing trace with hash -2118475468, now seen corresponding path program 5 times [2024-11-10 14:29:23,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:23,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483899961] [2024-11-10 14:29:23,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:23,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:23,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:23,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:23,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:23,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483899961] [2024-11-10 14:29:23,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483899961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:23,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:23,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:23,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930719244] [2024-11-10 14:29:23,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:23,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:23,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:23,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:23,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:24,254 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-10 14:29:24,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 1146 transitions, 25797 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) [2024-11-10 14:29:24,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:24,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-10 14:29:24,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:27,145 INFO L124 PetriNetUnfolderBase]: 2723/7757 cut-off events. [2024-11-10 14:29:27,145 INFO L125 PetriNetUnfolderBase]: For 199124/200181 co-relation queries the response was YES. [2024-11-10 14:29:27,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55380 conditions, 7757 events. 2723/7757 cut-off events. For 199124/200181 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 75419 event pairs, 256 based on Foata normal form. 306/8025 useless extension candidates. Maximal degree in co-relation 55199. Up to 1993 conditions per place. [2024-11-10 14:29:27,259 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 765 selfloop transitions, 268 changer transitions 26/1363 dead transitions. [2024-11-10 14:29:27,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 1363 transitions, 31071 flow [2024-11-10 14:29:27,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:29:27,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:29:27,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1094 transitions. [2024-11-10 14:29:27,261 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.775886524822695 [2024-11-10 14:29:27,261 INFO L175 Difference]: Start difference. First operand has 401 places, 1146 transitions, 25797 flow. Second operand 15 states and 1094 transitions. [2024-11-10 14:29:27,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 1363 transitions, 31071 flow [2024-11-10 14:29:28,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 1363 transitions, 30769 flow, removed 36 selfloop flow, removed 9 redundant places. [2024-11-10 14:29:28,673 INFO L231 Difference]: Finished difference. Result has 411 places, 1173 transitions, 27267 flow [2024-11-10 14:29:28,673 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=25508, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=241, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=889, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=27267, PETRI_PLACES=411, PETRI_TRANSITIONS=1173} [2024-11-10 14:29:28,674 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 319 predicate places. [2024-11-10 14:29:28,674 INFO L471 AbstractCegarLoop]: Abstraction has has 411 places, 1173 transitions, 27267 flow [2024-11-10 14:29:28,674 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) [2024-11-10 14:29:28,674 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:28,674 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] [2024-11-10 14:29:28,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-10 14:29:28,674 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:28,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:28,675 INFO L85 PathProgramCache]: Analyzing trace with hash -799528813, now seen corresponding path program 9 times [2024-11-10 14:29:28,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:28,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356805970] [2024-11-10 14:29:28,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:28,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:28,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:28,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:28,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356805970] [2024-11-10 14:29:28,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356805970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:28,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:28,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:28,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452104914] [2024-11-10 14:29:28,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:28,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:28,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:28,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:28,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:29,240 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-10 14:29:29,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 1173 transitions, 27267 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) [2024-11-10 14:29:29,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:29,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-10 14:29:29,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:32,256 INFO L124 PetriNetUnfolderBase]: 2749/7814 cut-off events. [2024-11-10 14:29:32,256 INFO L125 PetriNetUnfolderBase]: For 222486/223993 co-relation queries the response was YES. [2024-11-10 14:29:32,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57591 conditions, 7814 events. 2749/7814 cut-off events. For 222486/223993 co-relation queries the response was YES. Maximal size of possible extension queue 445. Compared 76213 event pairs, 268 based on Foata normal form. 355/8138 useless extension candidates. Maximal degree in co-relation 57406. Up to 2023 conditions per place. [2024-11-10 14:29:32,368 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 746 selfloop transitions, 411 changer transitions 22/1379 dead transitions. [2024-11-10 14:29:32,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 1379 transitions, 33670 flow [2024-11-10 14:29:32,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:29:32,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:29:32,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1075 transitions. [2024-11-10 14:29:32,369 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7624113475177305 [2024-11-10 14:29:32,369 INFO L175 Difference]: Start difference. First operand has 411 places, 1173 transitions, 27267 flow. Second operand 15 states and 1075 transitions. [2024-11-10 14:29:32,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 1379 transitions, 33670 flow [2024-11-10 14:29:33,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 1379 transitions, 33372 flow, removed 29 selfloop flow, removed 9 redundant places. [2024-11-10 14:29:33,807 INFO L231 Difference]: Finished difference. Result has 423 places, 1222 transitions, 29974 flow [2024-11-10 14:29:33,808 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=26987, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=363, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=775, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=29974, PETRI_PLACES=423, PETRI_TRANSITIONS=1222} [2024-11-10 14:29:33,809 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 331 predicate places. [2024-11-10 14:29:33,809 INFO L471 AbstractCegarLoop]: Abstraction has has 423 places, 1222 transitions, 29974 flow [2024-11-10 14:29:33,809 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) [2024-11-10 14:29:33,809 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:33,809 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:29:33,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-10 14:29:33,809 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:33,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:33,810 INFO L85 PathProgramCache]: Analyzing trace with hash -889031372, now seen corresponding path program 6 times [2024-11-10 14:29:33,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:33,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568639048] [2024-11-10 14:29:33,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:33,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:33,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:33,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:33,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568639048] [2024-11-10 14:29:33,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568639048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:33,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:33,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:33,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875553936] [2024-11-10 14:29:33,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:33,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:33,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:33,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:33,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:34,304 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2024-11-10 14:29:34,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 1222 transitions, 29974 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) [2024-11-10 14:29:34,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:34,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2024-11-10 14:29:34,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:37,534 INFO L124 PetriNetUnfolderBase]: 2759/7894 cut-off events. [2024-11-10 14:29:37,534 INFO L125 PetriNetUnfolderBase]: For 231837/233004 co-relation queries the response was YES. [2024-11-10 14:29:37,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58550 conditions, 7894 events. 2759/7894 cut-off events. For 231837/233004 co-relation queries the response was YES. Maximal size of possible extension queue 447. Compared 77203 event pairs, 249 based on Foata normal form. 287/8148 useless extension candidates. Maximal degree in co-relation 58359. Up to 1993 conditions per place. [2024-11-10 14:29:37,633 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 842 selfloop transitions, 259 changer transitions 32/1455 dead transitions. [2024-11-10 14:29:37,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 1455 transitions, 35268 flow [2024-11-10 14:29:37,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 14:29:37,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 14:29:37,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1076 transitions. [2024-11-10 14:29:37,635 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7631205673758865 [2024-11-10 14:29:37,635 INFO L175 Difference]: Start difference. First operand has 423 places, 1222 transitions, 29974 flow. Second operand 15 states and 1076 transitions. [2024-11-10 14:29:37,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 1455 transitions, 35268 flow [2024-11-10 14:29:39,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 1455 transitions, 34727 flow, removed 106 selfloop flow, removed 9 redundant places. [2024-11-10 14:29:39,191 INFO L231 Difference]: Finished difference. Result has 437 places, 1247 transitions, 30823 flow [2024-11-10 14:29:39,192 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=29459, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=229, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=970, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=30823, PETRI_PLACES=437, PETRI_TRANSITIONS=1247} [2024-11-10 14:29:39,193 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 345 predicate places. [2024-11-10 14:29:39,193 INFO L471 AbstractCegarLoop]: Abstraction has has 437 places, 1247 transitions, 30823 flow [2024-11-10 14:29:39,193 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) [2024-11-10 14:29:39,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:29:39,193 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] [2024-11-10 14:29:39,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-10 14:29:39,193 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 14:29:39,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:29:39,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1859623661, now seen corresponding path program 2 times [2024-11-10 14:29:39,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:29:39,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399161919] [2024-11-10 14:29:39,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:29:39,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:29:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:29:39,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:29:39,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:29:39,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399161919] [2024-11-10 14:29:39,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399161919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:29:39,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:29:39,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-10 14:29:39,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506012361] [2024-11-10 14:29:39,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:29:39,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 14:29:39,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:29:39,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 14:29:39,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:29:39,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2024-11-10 14:29:39,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 1247 transitions, 30823 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) [2024-11-10 14:29:39,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:29:39,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2024-11-10 14:29:39,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:29:43,531 INFO L124 PetriNetUnfolderBase]: 3438/9228 cut-off events. [2024-11-10 14:29:43,532 INFO L125 PetriNetUnfolderBase]: For 267614/268353 co-relation queries the response was YES.