./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-theta/unwind3-nondet.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-theta/unwind3-nondet.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 2d10f4791070edb44c97ab9948c6a47d7a3edd4f9cb75d429f64896be7b2f789 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 07:09:44,572 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:09:44,638 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 07:09:44,644 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:09:44,644 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:09:44,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:09:44,666 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:09:44,666 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:09:44,667 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:09:44,668 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:09:44,669 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 07:09:44,669 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 07:09:44,670 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 07:09:44,670 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:09:44,672 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:09:44,673 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:09:44,673 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:09:44,673 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:09:44,673 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:09:44,674 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:09:44,674 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:09:44,674 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:09:44,678 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 07:09:44,678 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:09:44,679 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:09:44,679 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:09:44,679 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:09:44,679 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:09:44,679 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:09:44,680 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:09:44,680 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:09:44,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 07:09:44,680 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:09:44,681 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:09:44,681 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:09:44,681 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 07:09:44,681 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:09:44,681 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:09:44,682 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 07:09:44,682 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 07:09:44,682 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:09:44,685 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d10f4791070edb44c97ab9948c6a47d7a3edd4f9cb75d429f64896be7b2f789 [2024-11-09 07:09:44,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:09:44,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:09:44,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:09:44,984 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:09:44,984 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:09:44,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-theta/unwind3-nondet.i [2024-11-09 07:09:46,373 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:09:46,658 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:09:46,662 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind3-nondet.i [2024-11-09 07:09:46,677 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f76d78a06/46bf9e8016e74135838e8ecdcdb573a0/FLAG5e7877869 [2024-11-09 07:09:46,979 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f76d78a06/46bf9e8016e74135838e8ecdcdb573a0 [2024-11-09 07:09:46,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:09:46,983 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:09:46,984 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:09:46,984 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:09:46,990 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:09:46,991 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:09:46" (1/1) ... [2024-11-09 07:09:46,992 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb5c6b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:46, skipping insertion in model container [2024-11-09 07:09:46,992 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:09:46" (1/1) ... [2024-11-09 07:09:47,044 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:09:47,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:09:47,432 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:09:47,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:09:47,522 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:09:47,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:47 WrapperNode [2024-11-09 07:09:47,523 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:09:47,525 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:09:47,525 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:09:47,525 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:09:47,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:47" (1/1) ... [2024-11-09 07:09:47,551 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:47" (1/1) ... [2024-11-09 07:09:47,580 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 87 [2024-11-09 07:09:47,581 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:09:47,582 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:09:47,582 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:09:47,582 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:09:47,590 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:47" (1/1) ... [2024-11-09 07:09:47,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:47" (1/1) ... [2024-11-09 07:09:47,595 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:47" (1/1) ... [2024-11-09 07:09:47,599 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:47" (1/1) ... [2024-11-09 07:09:47,604 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:47" (1/1) ... [2024-11-09 07:09:47,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:47" (1/1) ... [2024-11-09 07:09:47,620 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:47" (1/1) ... [2024-11-09 07:09:47,621 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:47" (1/1) ... [2024-11-09 07:09:47,627 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:09:47,628 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:09:47,628 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:09:47,628 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:09:47,630 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:47" (1/1) ... [2024-11-09 07:09:47,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 07:09:47,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:09:47,681 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) [2024-11-09 07:09:47,686 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 [2024-11-09 07:09:47,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:09:47,735 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-09 07:09:47,735 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-09 07:09:47,735 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-09 07:09:47,735 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-09 07:09:47,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:09:47,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:09:47,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:09:47,738 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 07:09:47,931 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:09:47,933 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:09:48,097 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 07:09:48,098 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:09:48,116 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:09:48,117 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 07:09:48,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:09:48 BoogieIcfgContainer [2024-11-09 07:09:48,118 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:09:48,120 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:09:48,120 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:09:48,123 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:09:48,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:09:46" (1/3) ... [2024-11-09 07:09:48,124 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d20029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:09:48, skipping insertion in model container [2024-11-09 07:09:48,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:47" (2/3) ... [2024-11-09 07:09:48,125 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d20029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:09:48, skipping insertion in model container [2024-11-09 07:09:48,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:09:48" (3/3) ... [2024-11-09 07:09:48,126 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind3-nondet.i [2024-11-09 07:09:48,141 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:09:48,141 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-09 07:09:48,141 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 07:09:48,200 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:48,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 109 transitions, 226 flow [2024-11-09 07:09:48,308 INFO L124 PetriNetUnfolderBase]: 12/159 cut-off events. [2024-11-09 07:09:48,308 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:48,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 159 events. 12/159 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 256 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 96. Up to 4 conditions per place. [2024-11-09 07:09:48,316 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 109 transitions, 226 flow [2024-11-09 07:09:48,322 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 92 transitions, 191 flow [2024-11-09 07:09:48,330 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:48,336 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:48,336 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-09 07:09:48,341 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:48,341 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:09:48,341 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:48,341 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:48,342 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:48,342 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:09:48,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:48,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1239212035, now seen corresponding path program 1 times [2024-11-09 07:09:48,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:48,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904604659] [2024-11-09 07:09:48,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:48,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:48,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:48,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:48,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904604659] [2024-11-09 07:09:48,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904604659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:48,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:48,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:48,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021715015] [2024-11-09 07:09:48,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:48,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:48,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:48,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:48,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:48,708 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 109 [2024-11-09 07:09:48,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 92 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:48,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:48,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 109 [2024-11-09 07:09:48,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:48,763 INFO L124 PetriNetUnfolderBase]: 5/127 cut-off events. [2024-11-09 07:09:48,764 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 07:09:48,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 127 events. 5/127 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 188 event pairs, 2 based on Foata normal form. 3/117 useless extension candidates. Maximal degree in co-relation 96. Up to 20 conditions per place. [2024-11-09 07:09:48,766 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 11 selfloop transitions, 2 changer transitions 1/88 dead transitions. [2024-11-09 07:09:48,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 88 transitions, 209 flow [2024-11-09 07:09:48,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:48,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:48,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-11-09 07:09:48,781 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8685015290519877 [2024-11-09 07:09:48,783 INFO L175 Difference]: Start difference. First operand has 93 places, 92 transitions, 191 flow. Second operand 3 states and 284 transitions. [2024-11-09 07:09:48,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 88 transitions, 209 flow [2024-11-09 07:09:48,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 88 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:48,791 INFO L231 Difference]: Finished difference. Result has 93 places, 87 transitions, 184 flow [2024-11-09 07:09:48,793 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=184, PETRI_PLACES=93, PETRI_TRANSITIONS=87} [2024-11-09 07:09:48,797 INFO L277 CegarLoopForPetriNet]: 93 programPoint places, 0 predicate places. [2024-11-09 07:09:48,797 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 87 transitions, 184 flow [2024-11-09 07:09:48,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:48,798 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:48,798 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] [2024-11-09 07:09:48,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:09:48,799 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:09:48,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:48,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1360163590, now seen corresponding path program 1 times [2024-11-09 07:09:48,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:48,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478084344] [2024-11-09 07:09:48,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:48,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:48,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:48,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:48,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478084344] [2024-11-09 07:09:48,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478084344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:48,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:48,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:48,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652227803] [2024-11-09 07:09:48,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:48,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:48,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:48,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:48,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:48,897 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 109 [2024-11-09 07:09:48,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 87 transitions, 184 flow. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:48,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:48,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 109 [2024-11-09 07:09:48,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:48,934 INFO L124 PetriNetUnfolderBase]: 3/113 cut-off events. [2024-11-09 07:09:48,934 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 07:09:48,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 113 events. 3/113 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 138 event pairs, 0 based on Foata normal form. 2/110 useless extension candidates. Maximal degree in co-relation 116. Up to 15 conditions per place. [2024-11-09 07:09:48,935 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 9 selfloop transitions, 1 changer transitions 24/82 dead transitions. [2024-11-09 07:09:48,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 82 transitions, 198 flow [2024-11-09 07:09:48,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:48,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:48,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 272 transitions. [2024-11-09 07:09:48,944 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8318042813455657 [2024-11-09 07:09:48,944 INFO L175 Difference]: Start difference. First operand has 93 places, 87 transitions, 184 flow. Second operand 3 states and 272 transitions. [2024-11-09 07:09:48,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 82 transitions, 198 flow [2024-11-09 07:09:48,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 82 transitions, 194 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:48,948 INFO L231 Difference]: Finished difference. Result has 87 places, 58 transitions, 122 flow [2024-11-09 07:09:48,948 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=87, PETRI_TRANSITIONS=58} [2024-11-09 07:09:48,949 INFO L277 CegarLoopForPetriNet]: 93 programPoint places, -6 predicate places. [2024-11-09 07:09:48,950 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 58 transitions, 122 flow [2024-11-09 07:09:48,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:48,950 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:48,951 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:48,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:09:48,951 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:09:48,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:48,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1669687107, now seen corresponding path program 1 times [2024-11-09 07:09:48,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:48,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788694495] [2024-11-09 07:09:48,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:48,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:49,229 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 07:09:49,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:49,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788694495] [2024-11-09 07:09:49,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788694495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:49,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:49,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:09:49,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859485135] [2024-11-09 07:09:49,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:49,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:09:49,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:49,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:09:49,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:09:49,281 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 109 [2024-11-09 07:09:49,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 58 transitions, 122 flow. Second operand has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:49,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:49,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 109 [2024-11-09 07:09:49,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:49,305 INFO L124 PetriNetUnfolderBase]: 0/78 cut-off events. [2024-11-09 07:09:49,305 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 07:09:49,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 78 events. 0/78 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 39 event pairs, 0 based on Foata normal form. 1/78 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2024-11-09 07:09:49,306 INFO L140 encePairwiseOnDemand]: 104/109 looper letters, 9 selfloop transitions, 2 changer transitions 3/60 dead transitions. [2024-11-09 07:09:49,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 60 transitions, 154 flow [2024-11-09 07:09:49,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:09:49,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:09:49,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 455 transitions. [2024-11-09 07:09:49,309 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8348623853211009 [2024-11-09 07:09:49,309 INFO L175 Difference]: Start difference. First operand has 87 places, 58 transitions, 122 flow. Second operand 5 states and 455 transitions. [2024-11-09 07:09:49,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 60 transitions, 154 flow [2024-11-09 07:09:49,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 60 transitions, 153 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:49,312 INFO L231 Difference]: Finished difference. Result has 67 places, 57 transitions, 127 flow [2024-11-09 07:09:49,312 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=127, PETRI_PLACES=67, PETRI_TRANSITIONS=57} [2024-11-09 07:09:49,313 INFO L277 CegarLoopForPetriNet]: 93 programPoint places, -26 predicate places. [2024-11-09 07:09:49,313 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 57 transitions, 127 flow [2024-11-09 07:09:49,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.2) internal successors, (451), 5 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:49,314 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:49,314 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:49,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:09:49,315 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:09:49,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:49,317 INFO L85 PathProgramCache]: Analyzing trace with hash 16131628, now seen corresponding path program 1 times [2024-11-09 07:09:49,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:49,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219804550] [2024-11-09 07:09:49,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:49,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:49,354 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:49,398 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:49,399 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:49,401 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-09 07:09:49,403 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-09 07:09:49,403 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-09 07:09:49,403 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-09 07:09:49,404 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-09 07:09:49,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-09 07:09:49,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 9 remaining) [2024-11-09 07:09:49,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-09 07:09:49,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-09 07:09:49,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:09:49,408 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:49,412 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:49,412 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-09 07:09:49,453 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:49,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 146 transitions, 312 flow [2024-11-09 07:09:49,496 INFO L124 PetriNetUnfolderBase]: 17/223 cut-off events. [2024-11-09 07:09:49,496 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 07:09:49,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 223 events. 17/223 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 439 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 234. Up to 6 conditions per place. [2024-11-09 07:09:49,497 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 146 transitions, 312 flow [2024-11-09 07:09:49,498 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 99 transitions, 211 flow [2024-11-09 07:09:49,500 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:49,500 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:49,501 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-09 07:09:49,507 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:49,507 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:09:49,507 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:49,507 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:49,508 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:49,508 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 07:09:49,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:49,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1623608829, now seen corresponding path program 1 times [2024-11-09 07:09:49,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:49,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909971638] [2024-11-09 07:09:49,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:49,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:49,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:49,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:49,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:49,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909971638] [2024-11-09 07:09:49,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909971638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:49,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:49,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:49,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527256358] [2024-11-09 07:09:49,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:49,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:49,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:49,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:49,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:49,606 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 146 [2024-11-09 07:09:49,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 99 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:49,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:49,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 146 [2024-11-09 07:09:49,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:49,644 INFO L124 PetriNetUnfolderBase]: 7/176 cut-off events. [2024-11-09 07:09:49,644 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-09 07:09:49,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 176 events. 7/176 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 333 event pairs, 3 based on Foata normal form. 4/163 useless extension candidates. Maximal degree in co-relation 153. Up to 27 conditions per place. [2024-11-09 07:09:49,646 INFO L140 encePairwiseOnDemand]: 140/146 looper letters, 12 selfloop transitions, 2 changer transitions 1/95 dead transitions. [2024-11-09 07:09:49,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 95 transitions, 231 flow [2024-11-09 07:09:49,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:49,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:49,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 375 transitions. [2024-11-09 07:09:49,648 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8561643835616438 [2024-11-09 07:09:49,648 INFO L175 Difference]: Start difference. First operand has 102 places, 99 transitions, 211 flow. Second operand 3 states and 375 transitions. [2024-11-09 07:09:49,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 95 transitions, 231 flow [2024-11-09 07:09:49,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 95 transitions, 230 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:49,652 INFO L231 Difference]: Finished difference. Result has 102 places, 94 transitions, 204 flow [2024-11-09 07:09:49,652 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=102, PETRI_TRANSITIONS=94} [2024-11-09 07:09:49,653 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 0 predicate places. [2024-11-09 07:09:49,653 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 94 transitions, 204 flow [2024-11-09 07:09:49,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:49,654 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:49,654 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] [2024-11-09 07:09:49,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:09:49,654 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 07:09:49,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:49,655 INFO L85 PathProgramCache]: Analyzing trace with hash 670751110, now seen corresponding path program 1 times [2024-11-09 07:09:49,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:49,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092920237] [2024-11-09 07:09:49,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:49,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:49,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:49,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:49,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092920237] [2024-11-09 07:09:49,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092920237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:49,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:49,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:49,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663539622] [2024-11-09 07:09:49,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:49,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:49,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:49,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:49,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:49,713 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 146 [2024-11-09 07:09:49,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 94 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:49,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:49,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 146 [2024-11-09 07:09:49,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:49,745 INFO L124 PetriNetUnfolderBase]: 4/157 cut-off events. [2024-11-09 07:09:49,746 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-09 07:09:49,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 157 events. 4/157 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 246 event pairs, 0 based on Foata normal form. 3/153 useless extension candidates. Maximal degree in co-relation 170. Up to 20 conditions per place. [2024-11-09 07:09:49,747 INFO L140 encePairwiseOnDemand]: 140/146 looper letters, 10 selfloop transitions, 1 changer transitions 24/89 dead transitions. [2024-11-09 07:09:49,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 89 transitions, 220 flow [2024-11-09 07:09:49,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:49,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:49,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 357 transitions. [2024-11-09 07:09:49,753 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.815068493150685 [2024-11-09 07:09:49,753 INFO L175 Difference]: Start difference. First operand has 102 places, 94 transitions, 204 flow. Second operand 3 states and 357 transitions. [2024-11-09 07:09:49,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 89 transitions, 220 flow [2024-11-09 07:09:49,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 89 transitions, 216 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:49,758 INFO L231 Difference]: Finished difference. Result has 96 places, 65 transitions, 142 flow [2024-11-09 07:09:49,758 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=96, PETRI_TRANSITIONS=65} [2024-11-09 07:09:49,759 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, -6 predicate places. [2024-11-09 07:09:49,759 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 65 transitions, 142 flow [2024-11-09 07:09:49,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:49,759 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:49,759 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:49,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 07:09:49,760 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 07:09:49,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:49,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1582488215, now seen corresponding path program 1 times [2024-11-09 07:09:49,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:49,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838175779] [2024-11-09 07:09:49,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:49,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:49,927 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 07:09:49,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:49,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838175779] [2024-11-09 07:09:49,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838175779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:49,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:49,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:09:49,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650711339] [2024-11-09 07:09:49,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:49,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:09:49,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:49,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:09:49,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:09:49,983 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 146 [2024-11-09 07:09:49,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 65 transitions, 142 flow. Second operand has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:49,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:49,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 146 [2024-11-09 07:09:49,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:50,004 INFO L124 PetriNetUnfolderBase]: 0/98 cut-off events. [2024-11-09 07:09:50,005 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-09 07:09:50,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 98 events. 0/98 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 51 event pairs, 0 based on Foata normal form. 1/98 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2024-11-09 07:09:50,005 INFO L140 encePairwiseOnDemand]: 141/146 looper letters, 10 selfloop transitions, 2 changer transitions 3/67 dead transitions. [2024-11-09 07:09:50,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 67 transitions, 176 flow [2024-11-09 07:09:50,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:09:50,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:09:50,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 611 transitions. [2024-11-09 07:09:50,009 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.836986301369863 [2024-11-09 07:09:50,009 INFO L175 Difference]: Start difference. First operand has 96 places, 65 transitions, 142 flow. Second operand 5 states and 611 transitions. [2024-11-09 07:09:50,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 67 transitions, 176 flow [2024-11-09 07:09:50,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 67 transitions, 175 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:50,012 INFO L231 Difference]: Finished difference. Result has 76 places, 64 transitions, 147 flow [2024-11-09 07:09:50,012 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=147, PETRI_PLACES=76, PETRI_TRANSITIONS=64} [2024-11-09 07:09:50,014 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, -26 predicate places. [2024-11-09 07:09:50,015 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 64 transitions, 147 flow [2024-11-09 07:09:50,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:50,016 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:50,016 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:50,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 07:09:50,016 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 07:09:50,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:50,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1496233298, now seen corresponding path program 1 times [2024-11-09 07:09:50,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:50,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636263087] [2024-11-09 07:09:50,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:50,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:50,034 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:50,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:50,057 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:50,058 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:50,058 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-09 07:09:50,058 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2024-11-09 07:09:50,058 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2024-11-09 07:09:50,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2024-11-09 07:09:50,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2024-11-09 07:09:50,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2024-11-09 07:09:50,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 10 remaining) [2024-11-09 07:09:50,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2024-11-09 07:09:50,060 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2024-11-09 07:09:50,060 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2024-11-09 07:09:50,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 07:09:50,060 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:50,061 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:50,061 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-09 07:09:50,096 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:50,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 183 transitions, 402 flow [2024-11-09 07:09:50,126 INFO L124 PetriNetUnfolderBase]: 22/287 cut-off events. [2024-11-09 07:09:50,127 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-09 07:09:50,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 287 events. 22/287 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 644 event pairs, 0 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 304. Up to 8 conditions per place. [2024-11-09 07:09:50,130 INFO L82 GeneralOperation]: Start removeDead. Operand has 182 places, 183 transitions, 402 flow [2024-11-09 07:09:50,131 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 111 places, 106 transitions, 233 flow [2024-11-09 07:09:50,133 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:50,134 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:50,134 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-09 07:09:50,136 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:50,137 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:09:50,137 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:50,137 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:50,137 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:50,137 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-09 07:09:50,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:50,138 INFO L85 PathProgramCache]: Analyzing trace with hash -240367357, now seen corresponding path program 1 times [2024-11-09 07:09:50,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:50,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389345443] [2024-11-09 07:09:50,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:50,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:50,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:50,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:50,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389345443] [2024-11-09 07:09:50,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389345443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:50,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:50,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:50,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505316379] [2024-11-09 07:09:50,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:50,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:50,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:50,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:50,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:50,219 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 183 [2024-11-09 07:09:50,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 106 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:50,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:50,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 183 [2024-11-09 07:09:50,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:50,248 INFO L124 PetriNetUnfolderBase]: 9/225 cut-off events. [2024-11-09 07:09:50,248 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-09 07:09:50,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 225 events. 9/225 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 470 event pairs, 4 based on Foata normal form. 5/209 useless extension candidates. Maximal degree in co-relation 214. Up to 34 conditions per place. [2024-11-09 07:09:50,249 INFO L140 encePairwiseOnDemand]: 177/183 looper letters, 13 selfloop transitions, 2 changer transitions 1/102 dead transitions. [2024-11-09 07:09:50,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 102 transitions, 255 flow [2024-11-09 07:09:50,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:50,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:50,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2024-11-09 07:09:50,251 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.848816029143898 [2024-11-09 07:09:50,251 INFO L175 Difference]: Start difference. First operand has 111 places, 106 transitions, 233 flow. Second operand 3 states and 466 transitions. [2024-11-09 07:09:50,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 102 transitions, 255 flow [2024-11-09 07:09:50,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 102 transitions, 252 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:50,254 INFO L231 Difference]: Finished difference. Result has 111 places, 101 transitions, 224 flow [2024-11-09 07:09:50,254 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=111, PETRI_TRANSITIONS=101} [2024-11-09 07:09:50,254 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 0 predicate places. [2024-11-09 07:09:50,255 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 101 transitions, 224 flow [2024-11-09 07:09:50,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:50,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:50,255 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] [2024-11-09 07:09:50,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 07:09:50,256 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-09 07:09:50,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:50,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1100998214, now seen corresponding path program 1 times [2024-11-09 07:09:50,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:50,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876182848] [2024-11-09 07:09:50,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:50,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:50,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:50,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:50,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876182848] [2024-11-09 07:09:50,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876182848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:50,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:50,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:50,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927764136] [2024-11-09 07:09:50,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:50,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:50,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:50,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:50,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:50,305 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 183 [2024-11-09 07:09:50,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 101 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:50,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:50,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 183 [2024-11-09 07:09:50,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:50,330 INFO L124 PetriNetUnfolderBase]: 5/201 cut-off events. [2024-11-09 07:09:50,330 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-09 07:09:50,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 201 events. 5/201 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 348 event pairs, 0 based on Foata normal form. 4/196 useless extension candidates. Maximal degree in co-relation 224. Up to 25 conditions per place. [2024-11-09 07:09:50,331 INFO L140 encePairwiseOnDemand]: 177/183 looper letters, 11 selfloop transitions, 1 changer transitions 24/96 dead transitions. [2024-11-09 07:09:50,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 96 transitions, 242 flow [2024-11-09 07:09:50,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:50,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:50,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 442 transitions. [2024-11-09 07:09:50,333 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8051001821493625 [2024-11-09 07:09:50,333 INFO L175 Difference]: Start difference. First operand has 111 places, 101 transitions, 224 flow. Second operand 3 states and 442 transitions. [2024-11-09 07:09:50,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 96 transitions, 242 flow [2024-11-09 07:09:50,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 96 transitions, 238 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:50,336 INFO L231 Difference]: Finished difference. Result has 105 places, 72 transitions, 162 flow [2024-11-09 07:09:50,336 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=105, PETRI_TRANSITIONS=72} [2024-11-09 07:09:50,337 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, -6 predicate places. [2024-11-09 07:09:50,338 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 72 transitions, 162 flow [2024-11-09 07:09:50,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:50,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:50,339 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:50,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 07:09:50,339 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-09 07:09:50,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:50,340 INFO L85 PathProgramCache]: Analyzing trace with hash 649750583, now seen corresponding path program 1 times [2024-11-09 07:09:50,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:50,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336657500] [2024-11-09 07:09:50,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:50,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:50,472 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-09 07:09:50,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:50,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336657500] [2024-11-09 07:09:50,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336657500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:50,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:50,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:09:50,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179691705] [2024-11-09 07:09:50,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:50,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:09:50,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:50,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:09:50,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:09:50,522 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 183 [2024-11-09 07:09:50,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 72 transitions, 162 flow. Second operand has 5 states, 5 states have (on average 152.6) internal successors, (763), 5 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:50,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:50,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 183 [2024-11-09 07:09:50,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:50,548 INFO L124 PetriNetUnfolderBase]: 0/118 cut-off events. [2024-11-09 07:09:50,549 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-09 07:09:50,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 118 events. 0/118 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 64 event pairs, 0 based on Foata normal form. 1/118 useless extension candidates. Maximal degree in co-relation 0. Up to 17 conditions per place. [2024-11-09 07:09:50,549 INFO L140 encePairwiseOnDemand]: 178/183 looper letters, 11 selfloop transitions, 2 changer transitions 3/74 dead transitions. [2024-11-09 07:09:50,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 74 transitions, 198 flow [2024-11-09 07:09:50,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:09:50,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:09:50,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 767 transitions. [2024-11-09 07:09:50,552 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8382513661202186 [2024-11-09 07:09:50,552 INFO L175 Difference]: Start difference. First operand has 105 places, 72 transitions, 162 flow. Second operand 5 states and 767 transitions. [2024-11-09 07:09:50,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 74 transitions, 198 flow [2024-11-09 07:09:50,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 74 transitions, 197 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:50,554 INFO L231 Difference]: Finished difference. Result has 85 places, 71 transitions, 167 flow [2024-11-09 07:09:50,554 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=167, PETRI_PLACES=85, PETRI_TRANSITIONS=71} [2024-11-09 07:09:50,554 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, -26 predicate places. [2024-11-09 07:09:50,554 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 71 transitions, 167 flow [2024-11-09 07:09:50,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 152.6) internal successors, (763), 5 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:50,556 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:50,556 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:50,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 07:09:50,557 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-09 07:09:50,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:50,557 INFO L85 PathProgramCache]: Analyzing trace with hash -2084519721, now seen corresponding path program 1 times [2024-11-09 07:09:50,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:50,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349638865] [2024-11-09 07:09:50,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:50,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:50,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:50,579 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:50,603 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:50,604 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:50,604 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-09 07:09:50,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2024-11-09 07:09:50,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2024-11-09 07:09:50,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2024-11-09 07:09:50,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2024-11-09 07:09:50,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2024-11-09 07:09:50,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 11 remaining) [2024-11-09 07:09:50,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2024-11-09 07:09:50,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2024-11-09 07:09:50,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2024-11-09 07:09:50,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2024-11-09 07:09:50,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 07:09:50,607 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:50,608 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:50,608 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-09 07:09:50,652 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:50,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 219 places, 220 transitions, 496 flow [2024-11-09 07:09:50,682 INFO L124 PetriNetUnfolderBase]: 27/351 cut-off events. [2024-11-09 07:09:50,683 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-09 07:09:50,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 384 conditions, 351 events. 27/351 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 858 event pairs, 0 based on Foata normal form. 0/305 useless extension candidates. Maximal degree in co-relation 375. Up to 10 conditions per place. [2024-11-09 07:09:50,683 INFO L82 GeneralOperation]: Start removeDead. Operand has 219 places, 220 transitions, 496 flow [2024-11-09 07:09:50,685 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 113 transitions, 257 flow [2024-11-09 07:09:50,686 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:50,686 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:50,686 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-09 07:09:50,688 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:50,688 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:09:50,688 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:50,688 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:50,688 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:50,688 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 07:09:50,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:50,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1093969155, now seen corresponding path program 1 times [2024-11-09 07:09:50,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:50,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214685624] [2024-11-09 07:09:50,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:50,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:50,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:50,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:50,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:50,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214685624] [2024-11-09 07:09:50,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214685624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:50,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:50,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:50,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124677643] [2024-11-09 07:09:50,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:50,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:50,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:50,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:50,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:50,745 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 220 [2024-11-09 07:09:50,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 113 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:50,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:50,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 220 [2024-11-09 07:09:50,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:50,781 INFO L124 PetriNetUnfolderBase]: 11/274 cut-off events. [2024-11-09 07:09:50,782 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-09 07:09:50,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 274 events. 11/274 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 626 event pairs, 5 based on Foata normal form. 11/260 useless extension candidates. Maximal degree in co-relation 276. Up to 41 conditions per place. [2024-11-09 07:09:50,783 INFO L140 encePairwiseOnDemand]: 214/220 looper letters, 14 selfloop transitions, 2 changer transitions 1/109 dead transitions. [2024-11-09 07:09:50,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 109 transitions, 281 flow [2024-11-09 07:09:50,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:50,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:50,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 557 transitions. [2024-11-09 07:09:50,785 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.843939393939394 [2024-11-09 07:09:50,785 INFO L175 Difference]: Start difference. First operand has 120 places, 113 transitions, 257 flow. Second operand 3 states and 557 transitions. [2024-11-09 07:09:50,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 109 transitions, 281 flow [2024-11-09 07:09:50,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 109 transitions, 274 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:50,788 INFO L231 Difference]: Finished difference. Result has 120 places, 108 transitions, 244 flow [2024-11-09 07:09:50,789 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=120, PETRI_TRANSITIONS=108} [2024-11-09 07:09:50,790 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 0 predicate places. [2024-11-09 07:09:50,790 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 108 transitions, 244 flow [2024-11-09 07:09:50,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:50,791 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:50,791 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] [2024-11-09 07:09:50,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 07:09:50,791 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 07:09:50,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:50,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1644062394, now seen corresponding path program 1 times [2024-11-09 07:09:50,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:50,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432468457] [2024-11-09 07:09:50,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:50,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:50,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:50,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:50,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432468457] [2024-11-09 07:09:50,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432468457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:50,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:50,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:50,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598195334] [2024-11-09 07:09:50,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:50,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:50,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:50,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:50,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:50,848 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 220 [2024-11-09 07:09:50,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 108 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:50,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:50,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 220 [2024-11-09 07:09:50,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:50,883 INFO L124 PetriNetUnfolderBase]: 6/245 cut-off events. [2024-11-09 07:09:50,884 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-09 07:09:50,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 245 events. 6/245 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 470 event pairs, 0 based on Foata normal form. 5/239 useless extension candidates. Maximal degree in co-relation 278. Up to 30 conditions per place. [2024-11-09 07:09:50,885 INFO L140 encePairwiseOnDemand]: 214/220 looper letters, 12 selfloop transitions, 1 changer transitions 24/103 dead transitions. [2024-11-09 07:09:50,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 103 transitions, 264 flow [2024-11-09 07:09:50,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:50,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:50,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 527 transitions. [2024-11-09 07:09:50,887 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7984848484848485 [2024-11-09 07:09:50,887 INFO L175 Difference]: Start difference. First operand has 120 places, 108 transitions, 244 flow. Second operand 3 states and 527 transitions. [2024-11-09 07:09:50,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 103 transitions, 264 flow [2024-11-09 07:09:50,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 103 transitions, 260 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:50,889 INFO L231 Difference]: Finished difference. Result has 114 places, 79 transitions, 182 flow [2024-11-09 07:09:50,889 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=114, PETRI_TRANSITIONS=79} [2024-11-09 07:09:50,891 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, -6 predicate places. [2024-11-09 07:09:50,891 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 79 transitions, 182 flow [2024-11-09 07:09:50,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:50,892 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:50,892 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:50,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 07:09:50,892 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 07:09:50,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:50,894 INFO L85 PathProgramCache]: Analyzing trace with hash 344469891, now seen corresponding path program 1 times [2024-11-09 07:09:50,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:50,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286928604] [2024-11-09 07:09:50,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:50,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:51,037 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-09 07:09:51,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:51,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286928604] [2024-11-09 07:09:51,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286928604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:51,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:51,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:09:51,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269253912] [2024-11-09 07:09:51,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:51,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:09:51,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:51,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:09:51,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:09:51,090 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 220 [2024-11-09 07:09:51,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 79 transitions, 182 flow. Second operand has 5 states, 5 states have (on average 183.8) internal successors, (919), 5 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:51,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:51,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 220 [2024-11-09 07:09:51,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:51,116 INFO L124 PetriNetUnfolderBase]: 0/138 cut-off events. [2024-11-09 07:09:51,117 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-09 07:09:51,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 138 events. 0/138 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 76 event pairs, 0 based on Foata normal form. 1/138 useless extension candidates. Maximal degree in co-relation 0. Up to 20 conditions per place. [2024-11-09 07:09:51,117 INFO L140 encePairwiseOnDemand]: 215/220 looper letters, 12 selfloop transitions, 2 changer transitions 3/81 dead transitions. [2024-11-09 07:09:51,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 81 transitions, 220 flow [2024-11-09 07:09:51,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:09:51,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:09:51,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 923 transitions. [2024-11-09 07:09:51,120 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8390909090909091 [2024-11-09 07:09:51,120 INFO L175 Difference]: Start difference. First operand has 114 places, 79 transitions, 182 flow. Second operand 5 states and 923 transitions. [2024-11-09 07:09:51,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 81 transitions, 220 flow [2024-11-09 07:09:51,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 81 transitions, 219 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:51,123 INFO L231 Difference]: Finished difference. Result has 94 places, 78 transitions, 187 flow [2024-11-09 07:09:51,123 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=187, PETRI_PLACES=94, PETRI_TRANSITIONS=78} [2024-11-09 07:09:51,124 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, -26 predicate places. [2024-11-09 07:09:51,124 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 78 transitions, 187 flow [2024-11-09 07:09:51,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 183.8) internal successors, (919), 5 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:51,125 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:51,125 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:51,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 07:09:51,126 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 07:09:51,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:51,126 INFO L85 PathProgramCache]: Analyzing trace with hash -229009337, now seen corresponding path program 1 times [2024-11-09 07:09:51,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:51,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507312107] [2024-11-09 07:09:51,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:51,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:51,145 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:51,174 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:51,175 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:51,177 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-09 07:09:51,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-09 07:09:51,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-09 07:09:51,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-09 07:09:51,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-09 07:09:51,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-09 07:09:51,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2024-11-09 07:09:51,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-09 07:09:51,178 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-09 07:09:51,178 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-09 07:09:51,178 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-09 07:09:51,178 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-09 07:09:51,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 07:09:51,178 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:51,179 WARN L244 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:51,179 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-09 07:09:51,223 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:51,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 256 places, 257 transitions, 594 flow [2024-11-09 07:09:51,266 INFO L124 PetriNetUnfolderBase]: 32/415 cut-off events. [2024-11-09 07:09:51,267 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-09 07:09:51,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 415 events. 32/415 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1048 event pairs, 0 based on Foata normal form. 0/361 useless extension candidates. Maximal degree in co-relation 447. Up to 12 conditions per place. [2024-11-09 07:09:51,268 INFO L82 GeneralOperation]: Start removeDead. Operand has 256 places, 257 transitions, 594 flow [2024-11-09 07:09:51,270 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 120 transitions, 283 flow [2024-11-09 07:09:51,271 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:51,271 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:51,271 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-09 07:09:51,272 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:51,273 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:09:51,273 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:51,273 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:51,273 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:51,273 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-09 07:09:51,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:51,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1915566589, now seen corresponding path program 1 times [2024-11-09 07:09:51,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:51,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989083068] [2024-11-09 07:09:51,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:51,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:51,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:51,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:51,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989083068] [2024-11-09 07:09:51,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989083068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:51,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:51,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:51,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372976903] [2024-11-09 07:09:51,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:51,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:51,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:51,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:51,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:51,351 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 257 [2024-11-09 07:09:51,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 120 transitions, 283 flow. Second operand has 3 states, 3 states have (on average 210.33333333333334) internal successors, (631), 3 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:51,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:51,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 257 [2024-11-09 07:09:51,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:51,395 INFO L124 PetriNetUnfolderBase]: 13/323 cut-off events. [2024-11-09 07:09:51,396 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-09 07:09:51,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 323 events. 13/323 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 750 event pairs, 6 based on Foata normal form. 7/301 useless extension candidates. Maximal degree in co-relation 339. Up to 48 conditions per place. [2024-11-09 07:09:51,397 INFO L140 encePairwiseOnDemand]: 251/257 looper letters, 15 selfloop transitions, 2 changer transitions 1/116 dead transitions. [2024-11-09 07:09:51,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 116 transitions, 309 flow [2024-11-09 07:09:51,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:51,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:51,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 648 transitions. [2024-11-09 07:09:51,399 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8404669260700389 [2024-11-09 07:09:51,400 INFO L175 Difference]: Start difference. First operand has 129 places, 120 transitions, 283 flow. Second operand 3 states and 648 transitions. [2024-11-09 07:09:51,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 116 transitions, 309 flow [2024-11-09 07:09:51,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 116 transitions, 296 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:51,403 INFO L231 Difference]: Finished difference. Result has 129 places, 115 transitions, 264 flow [2024-11-09 07:09:51,403 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=129, PETRI_TRANSITIONS=115} [2024-11-09 07:09:51,404 INFO L277 CegarLoopForPetriNet]: 129 programPoint places, 0 predicate places. [2024-11-09 07:09:51,405 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 115 transitions, 264 flow [2024-11-09 07:09:51,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 210.33333333333334) internal successors, (631), 3 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:51,405 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:51,405 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] [2024-11-09 07:09:51,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 07:09:51,406 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-09 07:09:51,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:51,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1025503878, now seen corresponding path program 1 times [2024-11-09 07:09:51,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:51,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917981494] [2024-11-09 07:09:51,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:51,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:51,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:51,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:51,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917981494] [2024-11-09 07:09:51,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917981494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:51,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:51,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:51,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985746233] [2024-11-09 07:09:51,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:51,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:51,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:51,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:51,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:51,479 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 257 [2024-11-09 07:09:51,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 115 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:51,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:51,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 257 [2024-11-09 07:09:51,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:51,520 INFO L124 PetriNetUnfolderBase]: 7/289 cut-off events. [2024-11-09 07:09:51,520 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-09 07:09:51,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361 conditions, 289 events. 7/289 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 558 event pairs, 0 based on Foata normal form. 6/282 useless extension candidates. Maximal degree in co-relation 332. Up to 35 conditions per place. [2024-11-09 07:09:51,521 INFO L140 encePairwiseOnDemand]: 251/257 looper letters, 13 selfloop transitions, 1 changer transitions 24/110 dead transitions. [2024-11-09 07:09:51,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 110 transitions, 286 flow [2024-11-09 07:09:51,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:51,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:51,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 612 transitions. [2024-11-09 07:09:51,523 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7937743190661478 [2024-11-09 07:09:51,523 INFO L175 Difference]: Start difference. First operand has 129 places, 115 transitions, 264 flow. Second operand 3 states and 612 transitions. [2024-11-09 07:09:51,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 110 transitions, 286 flow [2024-11-09 07:09:51,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 110 transitions, 282 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:51,526 INFO L231 Difference]: Finished difference. Result has 123 places, 86 transitions, 202 flow [2024-11-09 07:09:51,526 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=123, PETRI_TRANSITIONS=86} [2024-11-09 07:09:51,526 INFO L277 CegarLoopForPetriNet]: 129 programPoint places, -6 predicate places. [2024-11-09 07:09:51,527 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 86 transitions, 202 flow [2024-11-09 07:09:51,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:51,527 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:51,527 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:51,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 07:09:51,528 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-09 07:09:51,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:51,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1179719643, now seen corresponding path program 1 times [2024-11-09 07:09:51,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:51,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066618191] [2024-11-09 07:09:51,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:51,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:51,616 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-09 07:09:51,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:51,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066618191] [2024-11-09 07:09:51,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066618191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:51,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:51,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:09:51,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847326732] [2024-11-09 07:09:51,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:51,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:09:51,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:51,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:09:51,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:09:51,670 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 257 [2024-11-09 07:09:51,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 86 transitions, 202 flow. Second operand has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:51,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:51,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 257 [2024-11-09 07:09:51,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:51,700 INFO L124 PetriNetUnfolderBase]: 0/158 cut-off events. [2024-11-09 07:09:51,701 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-11-09 07:09:51,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 158 events. 0/158 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 88 event pairs, 0 based on Foata normal form. 1/158 useless extension candidates. Maximal degree in co-relation 0. Up to 23 conditions per place. [2024-11-09 07:09:51,701 INFO L140 encePairwiseOnDemand]: 252/257 looper letters, 13 selfloop transitions, 2 changer transitions 3/88 dead transitions. [2024-11-09 07:09:51,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 88 transitions, 242 flow [2024-11-09 07:09:51,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:09:51,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:09:51,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1079 transitions. [2024-11-09 07:09:51,704 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8396887159533074 [2024-11-09 07:09:51,704 INFO L175 Difference]: Start difference. First operand has 123 places, 86 transitions, 202 flow. Second operand 5 states and 1079 transitions. [2024-11-09 07:09:51,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 88 transitions, 242 flow [2024-11-09 07:09:51,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 88 transitions, 241 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:51,706 INFO L231 Difference]: Finished difference. Result has 103 places, 85 transitions, 207 flow [2024-11-09 07:09:51,707 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=207, PETRI_PLACES=103, PETRI_TRANSITIONS=85} [2024-11-09 07:09:51,707 INFO L277 CegarLoopForPetriNet]: 129 programPoint places, -26 predicate places. [2024-11-09 07:09:51,707 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 85 transitions, 207 flow [2024-11-09 07:09:51,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 215.0) internal successors, (1075), 5 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:51,708 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:51,708 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:51,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 07:09:51,709 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-09 07:09:51,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:51,709 INFO L85 PathProgramCache]: Analyzing trace with hash 105758878, now seen corresponding path program 1 times [2024-11-09 07:09:51,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:51,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835192747] [2024-11-09 07:09:51,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:51,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:51,725 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:51,741 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:51,742 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:51,742 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-09 07:09:51,742 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2024-11-09 07:09:51,742 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2024-11-09 07:09:51,742 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2024-11-09 07:09:51,742 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2024-11-09 07:09:51,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2024-11-09 07:09:51,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2024-11-09 07:09:51,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2024-11-09 07:09:51,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2024-11-09 07:09:51,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2024-11-09 07:09:51,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2024-11-09 07:09:51,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2024-11-09 07:09:51,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2024-11-09 07:09:51,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 07:09:51,744 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:51,745 WARN L244 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:51,745 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2024-11-09 07:09:51,794 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:51,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 293 places, 294 transitions, 696 flow [2024-11-09 07:09:51,858 INFO L124 PetriNetUnfolderBase]: 37/479 cut-off events. [2024-11-09 07:09:51,859 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-09 07:09:51,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 479 events. 37/479 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1233 event pairs, 0 based on Foata normal form. 0/417 useless extension candidates. Maximal degree in co-relation 520. Up to 14 conditions per place. [2024-11-09 07:09:51,860 INFO L82 GeneralOperation]: Start removeDead. Operand has 293 places, 294 transitions, 696 flow [2024-11-09 07:09:51,862 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 127 transitions, 311 flow [2024-11-09 07:09:51,863 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:51,863 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:51,864 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-09 07:09:51,866 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:51,866 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:09:51,866 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:51,866 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:51,866 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:51,867 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-09 07:09:51,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:51,867 INFO L85 PathProgramCache]: Analyzing trace with hash -679039997, now seen corresponding path program 1 times [2024-11-09 07:09:51,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:51,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628362738] [2024-11-09 07:09:51,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:51,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:51,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:51,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:51,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628362738] [2024-11-09 07:09:51,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628362738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:51,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:51,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:51,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958238619] [2024-11-09 07:09:51,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:51,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:51,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:51,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:51,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:51,939 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 294 [2024-11-09 07:09:51,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 127 transitions, 311 flow. Second operand has 3 states, 3 states have (on average 240.33333333333334) internal successors, (721), 3 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:51,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:51,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 294 [2024-11-09 07:09:51,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:51,993 INFO L124 PetriNetUnfolderBase]: 15/372 cut-off events. [2024-11-09 07:09:51,993 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2024-11-09 07:09:51,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 372 events. 15/372 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 915 event pairs, 7 based on Foata normal form. 15/354 useless extension candidates. Maximal degree in co-relation 403. Up to 55 conditions per place. [2024-11-09 07:09:51,995 INFO L140 encePairwiseOnDemand]: 288/294 looper letters, 16 selfloop transitions, 2 changer transitions 1/123 dead transitions. [2024-11-09 07:09:51,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 123 transitions, 339 flow [2024-11-09 07:09:51,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:51,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:51,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 739 transitions. [2024-11-09 07:09:51,998 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8378684807256236 [2024-11-09 07:09:51,998 INFO L175 Difference]: Start difference. First operand has 138 places, 127 transitions, 311 flow. Second operand 3 states and 739 transitions. [2024-11-09 07:09:51,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 123 transitions, 339 flow [2024-11-09 07:09:51,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 123 transitions, 318 flow, removed 10 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:52,001 INFO L231 Difference]: Finished difference. Result has 138 places, 122 transitions, 284 flow [2024-11-09 07:09:52,001 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=138, PETRI_TRANSITIONS=122} [2024-11-09 07:09:52,002 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 0 predicate places. [2024-11-09 07:09:52,002 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 122 transitions, 284 flow [2024-11-09 07:09:52,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 240.33333333333334) internal successors, (721), 3 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:52,002 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:52,002 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] [2024-11-09 07:09:52,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 07:09:52,003 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-09 07:09:52,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:52,003 INFO L85 PathProgramCache]: Analyzing trace with hash 519762438, now seen corresponding path program 1 times [2024-11-09 07:09:52,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:52,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947419753] [2024-11-09 07:09:52,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:52,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:52,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:52,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:52,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947419753] [2024-11-09 07:09:52,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947419753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:52,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:52,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:52,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581725867] [2024-11-09 07:09:52,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:52,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:52,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:52,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:52,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:52,055 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 294 [2024-11-09 07:09:52,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 122 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:52,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:52,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 294 [2024-11-09 07:09:52,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:52,100 INFO L124 PetriNetUnfolderBase]: 8/333 cut-off events. [2024-11-09 07:09:52,101 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-09 07:09:52,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 416 conditions, 333 events. 8/333 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 686 event pairs, 0 based on Foata normal form. 7/325 useless extension candidates. Maximal degree in co-relation 386. Up to 40 conditions per place. [2024-11-09 07:09:52,102 INFO L140 encePairwiseOnDemand]: 288/294 looper letters, 14 selfloop transitions, 1 changer transitions 24/117 dead transitions. [2024-11-09 07:09:52,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 117 transitions, 308 flow [2024-11-09 07:09:52,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:52,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:52,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 697 transitions. [2024-11-09 07:09:52,104 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7902494331065759 [2024-11-09 07:09:52,104 INFO L175 Difference]: Start difference. First operand has 138 places, 122 transitions, 284 flow. Second operand 3 states and 697 transitions. [2024-11-09 07:09:52,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 117 transitions, 308 flow [2024-11-09 07:09:52,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 117 transitions, 304 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:52,107 INFO L231 Difference]: Finished difference. Result has 132 places, 93 transitions, 222 flow [2024-11-09 07:09:52,108 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=132, PETRI_TRANSITIONS=93} [2024-11-09 07:09:52,108 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, -6 predicate places. [2024-11-09 07:09:52,108 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 93 transitions, 222 flow [2024-11-09 07:09:52,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:52,109 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:52,109 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:52,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 07:09:52,110 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-09 07:09:52,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:52,111 INFO L85 PathProgramCache]: Analyzing trace with hash -474563425, now seen corresponding path program 1 times [2024-11-09 07:09:52,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:52,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917826237] [2024-11-09 07:09:52,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:52,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:52,205 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-09 07:09:52,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:52,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917826237] [2024-11-09 07:09:52,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917826237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:52,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:52,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:09:52,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917683744] [2024-11-09 07:09:52,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:52,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:09:52,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:52,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:09:52,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:09:52,264 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 294 [2024-11-09 07:09:52,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 93 transitions, 222 flow. Second operand has 5 states, 5 states have (on average 246.2) internal successors, (1231), 5 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:52,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:52,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 294 [2024-11-09 07:09:52,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:52,312 INFO L124 PetriNetUnfolderBase]: 0/178 cut-off events. [2024-11-09 07:09:52,313 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-09 07:09:52,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 178 events. 0/178 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 100 event pairs, 0 based on Foata normal form. 1/178 useless extension candidates. Maximal degree in co-relation 0. Up to 26 conditions per place. [2024-11-09 07:09:52,313 INFO L140 encePairwiseOnDemand]: 289/294 looper letters, 14 selfloop transitions, 2 changer transitions 3/95 dead transitions. [2024-11-09 07:09:52,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 95 transitions, 264 flow [2024-11-09 07:09:52,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:09:52,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:09:52,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1235 transitions. [2024-11-09 07:09:52,316 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8401360544217688 [2024-11-09 07:09:52,316 INFO L175 Difference]: Start difference. First operand has 132 places, 93 transitions, 222 flow. Second operand 5 states and 1235 transitions. [2024-11-09 07:09:52,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 95 transitions, 264 flow [2024-11-09 07:09:52,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 95 transitions, 263 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:52,318 INFO L231 Difference]: Finished difference. Result has 112 places, 92 transitions, 227 flow [2024-11-09 07:09:52,319 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=227, PETRI_PLACES=112, PETRI_TRANSITIONS=92} [2024-11-09 07:09:52,319 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, -26 predicate places. [2024-11-09 07:09:52,319 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 92 transitions, 227 flow [2024-11-09 07:09:52,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 246.2) internal successors, (1231), 5 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:52,320 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:52,320 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:52,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-09 07:09:52,320 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-09 07:09:52,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:52,321 INFO L85 PathProgramCache]: Analyzing trace with hash -752350852, now seen corresponding path program 1 times [2024-11-09 07:09:52,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:52,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267704361] [2024-11-09 07:09:52,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:52,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:52,336 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:52,355 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:52,356 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:52,356 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2024-11-09 07:09:52,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2024-11-09 07:09:52,356 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2024-11-09 07:09:52,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2024-11-09 07:09:52,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2024-11-09 07:09:52,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2024-11-09 07:09:52,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 14 remaining) [2024-11-09 07:09:52,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2024-11-09 07:09:52,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2024-11-09 07:09:52,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2024-11-09 07:09:52,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2024-11-09 07:09:52,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2024-11-09 07:09:52,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2024-11-09 07:09:52,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2024-11-09 07:09:52,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 07:09:52,358 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:52,359 WARN L244 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:52,359 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2024-11-09 07:09:52,404 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:52,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 330 places, 331 transitions, 802 flow [2024-11-09 07:09:52,453 INFO L124 PetriNetUnfolderBase]: 42/543 cut-off events. [2024-11-09 07:09:52,454 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-11-09 07:09:52,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 609 conditions, 543 events. 42/543 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1458 event pairs, 0 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 594. Up to 16 conditions per place. [2024-11-09 07:09:52,455 INFO L82 GeneralOperation]: Start removeDead. Operand has 330 places, 331 transitions, 802 flow [2024-11-09 07:09:52,458 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 134 transitions, 341 flow [2024-11-09 07:09:52,459 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:52,459 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:52,459 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-09 07:09:52,461 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:52,461 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:09:52,461 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:52,462 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:52,462 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:52,462 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-09 07:09:52,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:52,462 INFO L85 PathProgramCache]: Analyzing trace with hash 508581635, now seen corresponding path program 1 times [2024-11-09 07:09:52,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:52,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56327111] [2024-11-09 07:09:52,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:52,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:52,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:52,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:52,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:52,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56327111] [2024-11-09 07:09:52,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56327111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:52,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:52,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:52,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180530656] [2024-11-09 07:09:52,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:52,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:52,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:52,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:52,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:52,537 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 331 [2024-11-09 07:09:52,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 134 transitions, 341 flow. Second operand has 3 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:52,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:52,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 331 [2024-11-09 07:09:52,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:52,598 INFO L124 PetriNetUnfolderBase]: 17/421 cut-off events. [2024-11-09 07:09:52,598 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-11-09 07:09:52,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 545 conditions, 421 events. 17/421 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1069 event pairs, 8 based on Foata normal form. 17/401 useless extension candidates. Maximal degree in co-relation 468. Up to 62 conditions per place. [2024-11-09 07:09:52,601 INFO L140 encePairwiseOnDemand]: 325/331 looper letters, 17 selfloop transitions, 2 changer transitions 1/130 dead transitions. [2024-11-09 07:09:52,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 130 transitions, 371 flow [2024-11-09 07:09:52,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:52,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:52,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 830 transitions. [2024-11-09 07:09:52,604 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8358509566968781 [2024-11-09 07:09:52,604 INFO L175 Difference]: Start difference. First operand has 147 places, 134 transitions, 341 flow. Second operand 3 states and 830 transitions. [2024-11-09 07:09:52,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 130 transitions, 371 flow [2024-11-09 07:09:52,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 130 transitions, 340 flow, removed 15 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:52,608 INFO L231 Difference]: Finished difference. Result has 147 places, 129 transitions, 304 flow [2024-11-09 07:09:52,608 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=304, PETRI_PLACES=147, PETRI_TRANSITIONS=129} [2024-11-09 07:09:52,608 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 0 predicate places. [2024-11-09 07:09:52,608 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 129 transitions, 304 flow [2024-11-09 07:09:52,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:52,609 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:52,609 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] [2024-11-09 07:09:52,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 07:09:52,610 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-09 07:09:52,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:52,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1133680582, now seen corresponding path program 1 times [2024-11-09 07:09:52,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:52,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962698068] [2024-11-09 07:09:52,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:52,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:52,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:52,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:52,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962698068] [2024-11-09 07:09:52,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962698068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:52,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:52,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:52,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525918029] [2024-11-09 07:09:52,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:52,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:52,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:52,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:52,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:52,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 331 [2024-11-09 07:09:52,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 129 transitions, 304 flow. Second operand has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:52,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:52,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 331 [2024-11-09 07:09:52,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:52,743 INFO L124 PetriNetUnfolderBase]: 9/377 cut-off events. [2024-11-09 07:09:52,743 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-09 07:09:52,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 471 conditions, 377 events. 9/377 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 793 event pairs, 0 based on Foata normal form. 8/368 useless extension candidates. Maximal degree in co-relation 440. Up to 45 conditions per place. [2024-11-09 07:09:52,745 INFO L140 encePairwiseOnDemand]: 325/331 looper letters, 15 selfloop transitions, 1 changer transitions 24/124 dead transitions. [2024-11-09 07:09:52,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 124 transitions, 330 flow [2024-11-09 07:09:52,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:52,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:52,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 782 transitions. [2024-11-09 07:09:52,747 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7875125881168177 [2024-11-09 07:09:52,747 INFO L175 Difference]: Start difference. First operand has 147 places, 129 transitions, 304 flow. Second operand 3 states and 782 transitions. [2024-11-09 07:09:52,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 124 transitions, 330 flow [2024-11-09 07:09:52,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 124 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:52,749 INFO L231 Difference]: Finished difference. Result has 141 places, 100 transitions, 242 flow [2024-11-09 07:09:52,750 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=141, PETRI_TRANSITIONS=100} [2024-11-09 07:09:52,750 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, -6 predicate places. [2024-11-09 07:09:52,750 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 100 transitions, 242 flow [2024-11-09 07:09:52,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:52,751 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:52,751 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:52,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-09 07:09:52,751 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-09 07:09:52,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:52,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1607761617, now seen corresponding path program 1 times [2024-11-09 07:09:52,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:52,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974614309] [2024-11-09 07:09:52,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:52,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:52,856 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2024-11-09 07:09:52,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:52,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974614309] [2024-11-09 07:09:52,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974614309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:52,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:52,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:09:52,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555789608] [2024-11-09 07:09:52,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:52,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:09:52,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:52,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:09:52,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:09:52,920 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 331 [2024-11-09 07:09:52,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 100 transitions, 242 flow. Second operand has 5 states, 5 states have (on average 277.4) internal successors, (1387), 5 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:52,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:52,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 331 [2024-11-09 07:09:52,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:52,956 INFO L124 PetriNetUnfolderBase]: 0/198 cut-off events. [2024-11-09 07:09:52,956 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-09 07:09:52,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 198 events. 0/198 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 111 event pairs, 0 based on Foata normal form. 1/198 useless extension candidates. Maximal degree in co-relation 0. Up to 29 conditions per place. [2024-11-09 07:09:52,957 INFO L140 encePairwiseOnDemand]: 326/331 looper letters, 15 selfloop transitions, 2 changer transitions 3/102 dead transitions. [2024-11-09 07:09:52,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 102 transitions, 286 flow [2024-11-09 07:09:52,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:09:52,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:09:52,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1391 transitions. [2024-11-09 07:09:52,960 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8404833836858006 [2024-11-09 07:09:52,960 INFO L175 Difference]: Start difference. First operand has 141 places, 100 transitions, 242 flow. Second operand 5 states and 1391 transitions. [2024-11-09 07:09:52,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 102 transitions, 286 flow [2024-11-09 07:09:52,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 102 transitions, 285 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:52,962 INFO L231 Difference]: Finished difference. Result has 121 places, 99 transitions, 247 flow [2024-11-09 07:09:52,962 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=247, PETRI_PLACES=121, PETRI_TRANSITIONS=99} [2024-11-09 07:09:52,963 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, -26 predicate places. [2024-11-09 07:09:52,963 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 99 transitions, 247 flow [2024-11-09 07:09:52,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 277.4) internal successors, (1387), 5 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:52,964 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:52,964 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:52,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-09 07:09:52,964 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-09 07:09:52,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:52,964 INFO L85 PathProgramCache]: Analyzing trace with hash -393731455, now seen corresponding path program 1 times [2024-11-09 07:09:52,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:52,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036385740] [2024-11-09 07:09:52,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:52,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:52,983 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:53,004 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:53,004 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:53,004 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-09 07:09:53,004 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-09 07:09:53,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-09 07:09:53,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-09 07:09:53,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-09 07:09:53,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-09 07:09:53,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2024-11-09 07:09:53,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-09 07:09:53,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-09 07:09:53,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-09 07:09:53,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-09 07:09:53,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-09 07:09:53,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-09 07:09:53,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-09 07:09:53,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-09 07:09:53,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-09 07:09:53,006 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:53,007 WARN L244 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:53,007 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2024-11-09 07:09:53,057 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:53,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 367 places, 368 transitions, 912 flow [2024-11-09 07:09:53,130 INFO L124 PetriNetUnfolderBase]: 47/607 cut-off events. [2024-11-09 07:09:53,130 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-09 07:09:53,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 686 conditions, 607 events. 47/607 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1582 event pairs, 0 based on Foata normal form. 0/529 useless extension candidates. Maximal degree in co-relation 669. Up to 18 conditions per place. [2024-11-09 07:09:53,132 INFO L82 GeneralOperation]: Start removeDead. Operand has 367 places, 368 transitions, 912 flow [2024-11-09 07:09:53,135 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 141 transitions, 373 flow [2024-11-09 07:09:53,136 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:53,136 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:53,136 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-09 07:09:53,138 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:53,138 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:09:53,138 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:53,138 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:53,138 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:53,138 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 07:09:53,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:53,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1647298307, now seen corresponding path program 1 times [2024-11-09 07:09:53,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:53,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013314801] [2024-11-09 07:09:53,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:53,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:53,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:53,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:53,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:53,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013314801] [2024-11-09 07:09:53,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013314801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:53,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:53,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:53,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355470970] [2024-11-09 07:09:53,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:53,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:53,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:53,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:53,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:53,218 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 368 [2024-11-09 07:09:53,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 141 transitions, 373 flow. Second operand has 3 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:53,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:53,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 368 [2024-11-09 07:09:53,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:53,293 INFO L124 PetriNetUnfolderBase]: 19/470 cut-off events. [2024-11-09 07:09:53,293 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2024-11-09 07:09:53,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 613 conditions, 470 events. 19/470 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1172 event pairs, 9 based on Foata normal form. 10/439 useless extension candidates. Maximal degree in co-relation 534. Up to 69 conditions per place. [2024-11-09 07:09:53,297 INFO L140 encePairwiseOnDemand]: 362/368 looper letters, 18 selfloop transitions, 2 changer transitions 1/137 dead transitions. [2024-11-09 07:09:53,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 137 transitions, 405 flow [2024-11-09 07:09:53,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:53,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:53,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2024-11-09 07:09:53,299 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8342391304347826 [2024-11-09 07:09:53,299 INFO L175 Difference]: Start difference. First operand has 156 places, 141 transitions, 373 flow. Second operand 3 states and 921 transitions. [2024-11-09 07:09:53,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 137 transitions, 405 flow [2024-11-09 07:09:53,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 137 transitions, 362 flow, removed 21 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:53,302 INFO L231 Difference]: Finished difference. Result has 156 places, 136 transitions, 324 flow [2024-11-09 07:09:53,302 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=156, PETRI_TRANSITIONS=136} [2024-11-09 07:09:53,303 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, 0 predicate places. [2024-11-09 07:09:53,303 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 136 transitions, 324 flow [2024-11-09 07:09:53,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:53,303 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:53,303 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] [2024-11-09 07:09:53,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-09 07:09:53,304 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 07:09:53,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:53,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1427708986, now seen corresponding path program 1 times [2024-11-09 07:09:53,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:53,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870645148] [2024-11-09 07:09:53,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:53,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:53,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:53,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:53,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:53,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870645148] [2024-11-09 07:09:53,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870645148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:53,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:53,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:53,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256708232] [2024-11-09 07:09:53,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:53,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:53,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:53,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:53,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:53,363 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 368 [2024-11-09 07:09:53,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 136 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 282.0) internal successors, (846), 3 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:53,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:53,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 368 [2024-11-09 07:09:53,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:53,425 INFO L124 PetriNetUnfolderBase]: 10/421 cut-off events. [2024-11-09 07:09:53,426 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-09 07:09:53,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 526 conditions, 421 events. 10/421 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 869 event pairs, 0 based on Foata normal form. 9/411 useless extension candidates. Maximal degree in co-relation 494. Up to 50 conditions per place. [2024-11-09 07:09:53,428 INFO L140 encePairwiseOnDemand]: 362/368 looper letters, 16 selfloop transitions, 1 changer transitions 24/131 dead transitions. [2024-11-09 07:09:53,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 131 transitions, 352 flow [2024-11-09 07:09:53,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:53,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:53,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 867 transitions. [2024-11-09 07:09:53,431 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7853260869565217 [2024-11-09 07:09:53,431 INFO L175 Difference]: Start difference. First operand has 156 places, 136 transitions, 324 flow. Second operand 3 states and 867 transitions. [2024-11-09 07:09:53,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 131 transitions, 352 flow [2024-11-09 07:09:53,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 131 transitions, 348 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:53,434 INFO L231 Difference]: Finished difference. Result has 150 places, 107 transitions, 262 flow [2024-11-09 07:09:53,434 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=150, PETRI_TRANSITIONS=107} [2024-11-09 07:09:53,434 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, -6 predicate places. [2024-11-09 07:09:53,434 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 107 transitions, 262 flow [2024-11-09 07:09:53,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 282.0) internal successors, (846), 3 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:53,435 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:53,435 INFO L204 CegarLoopForPetriNet]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:53,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-09 07:09:53,436 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 07:09:53,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:53,436 INFO L85 PathProgramCache]: Analyzing trace with hash 506889963, now seen corresponding path program 1 times [2024-11-09 07:09:53,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:53,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759291027] [2024-11-09 07:09:53,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:53,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:53,573 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2024-11-09 07:09:53,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:53,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759291027] [2024-11-09 07:09:53,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759291027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:53,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:53,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:09:53,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768642821] [2024-11-09 07:09:53,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:53,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:09:53,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:53,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:09:53,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:09:53,640 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 368 [2024-11-09 07:09:53,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 107 transitions, 262 flow. Second operand has 5 states, 5 states have (on average 308.6) internal successors, (1543), 5 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:53,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:53,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 368 [2024-11-09 07:09:53,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:53,680 INFO L124 PetriNetUnfolderBase]: 0/218 cut-off events. [2024-11-09 07:09:53,681 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-09 07:09:53,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 218 events. 0/218 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 123 event pairs, 0 based on Foata normal form. 1/218 useless extension candidates. Maximal degree in co-relation 0. Up to 32 conditions per place. [2024-11-09 07:09:53,682 INFO L140 encePairwiseOnDemand]: 363/368 looper letters, 16 selfloop transitions, 2 changer transitions 3/109 dead transitions. [2024-11-09 07:09:53,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 109 transitions, 308 flow [2024-11-09 07:09:53,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:09:53,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:09:53,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1547 transitions. [2024-11-09 07:09:53,685 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8407608695652173 [2024-11-09 07:09:53,685 INFO L175 Difference]: Start difference. First operand has 150 places, 107 transitions, 262 flow. Second operand 5 states and 1547 transitions. [2024-11-09 07:09:53,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 109 transitions, 308 flow [2024-11-09 07:09:53,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 109 transitions, 307 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:53,688 INFO L231 Difference]: Finished difference. Result has 130 places, 106 transitions, 267 flow [2024-11-09 07:09:53,688 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=267, PETRI_PLACES=130, PETRI_TRANSITIONS=106} [2024-11-09 07:09:53,688 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, -26 predicate places. [2024-11-09 07:09:53,689 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 106 transitions, 267 flow [2024-11-09 07:09:53,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 308.6) internal successors, (1543), 5 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:53,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:53,690 INFO L204 CegarLoopForPetriNet]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:53,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-09 07:09:53,690 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 07:09:53,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:53,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1675533133, now seen corresponding path program 1 times [2024-11-09 07:09:53,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:53,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794582730] [2024-11-09 07:09:53,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:53,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:53,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:53,712 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:53,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:53,741 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:53,742 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:53,742 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-11-09 07:09:53,742 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-11-09 07:09:53,742 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-11-09 07:09:53,742 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-11-09 07:09:53,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-11-09 07:09:53,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-11-09 07:09:53,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 16 remaining) [2024-11-09 07:09:53,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-11-09 07:09:53,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-11-09 07:09:53,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-11-09 07:09:53,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-11-09 07:09:53,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-11-09 07:09:53,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-11-09 07:09:53,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-11-09 07:09:53,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-11-09 07:09:53,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-11-09 07:09:53,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-09 07:09:53,745 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:53,745 WARN L244 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:53,746 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2024-11-09 07:09:53,818 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:53,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 404 places, 405 transitions, 1026 flow [2024-11-09 07:09:53,888 INFO L124 PetriNetUnfolderBase]: 52/671 cut-off events. [2024-11-09 07:09:53,889 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2024-11-09 07:09:53,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 764 conditions, 671 events. 52/671 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1796 event pairs, 0 based on Foata normal form. 0/585 useless extension candidates. Maximal degree in co-relation 745. Up to 20 conditions per place. [2024-11-09 07:09:53,892 INFO L82 GeneralOperation]: Start removeDead. Operand has 404 places, 405 transitions, 1026 flow [2024-11-09 07:09:53,894 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 165 places, 148 transitions, 407 flow [2024-11-09 07:09:53,896 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:53,897 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:53,898 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-09 07:09:53,899 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:53,899 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:09:53,899 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:53,899 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:53,900 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:53,900 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-09 07:09:53,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:53,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1557857277, now seen corresponding path program 1 times [2024-11-09 07:09:53,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:53,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762830313] [2024-11-09 07:09:53,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:53,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:53,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:53,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:53,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:53,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762830313] [2024-11-09 07:09:53,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762830313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:53,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:53,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:53,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370219348] [2024-11-09 07:09:53,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:53,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:53,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:53,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:53,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:53,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 405 [2024-11-09 07:09:53,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 148 transitions, 407 flow. Second operand has 3 states, 3 states have (on average 330.3333333333333) internal successors, (991), 3 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:53,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:53,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 405 [2024-11-09 07:09:53,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:54,075 INFO L124 PetriNetUnfolderBase]: 21/519 cut-off events. [2024-11-09 07:09:54,075 INFO L125 PetriNetUnfolderBase]: For 211/211 co-relation queries the response was YES. [2024-11-09 07:09:54,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 682 conditions, 519 events. 21/519 cut-off events. For 211/211 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1335 event pairs, 10 based on Foata normal form. 21/495 useless extension candidates. Maximal degree in co-relation 601. Up to 76 conditions per place. [2024-11-09 07:09:54,079 INFO L140 encePairwiseOnDemand]: 399/405 looper letters, 19 selfloop transitions, 2 changer transitions 1/144 dead transitions. [2024-11-09 07:09:54,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 144 transitions, 441 flow [2024-11-09 07:09:54,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:54,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:54,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1012 transitions. [2024-11-09 07:09:54,081 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8329218106995885 [2024-11-09 07:09:54,082 INFO L175 Difference]: Start difference. First operand has 165 places, 148 transitions, 407 flow. Second operand 3 states and 1012 transitions. [2024-11-09 07:09:54,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 144 transitions, 441 flow [2024-11-09 07:09:54,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 144 transitions, 384 flow, removed 28 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:54,085 INFO L231 Difference]: Finished difference. Result has 165 places, 143 transitions, 344 flow [2024-11-09 07:09:54,085 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=165, PETRI_TRANSITIONS=143} [2024-11-09 07:09:54,086 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 0 predicate places. [2024-11-09 07:09:54,086 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 143 transitions, 344 flow [2024-11-09 07:09:54,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 330.3333333333333) internal successors, (991), 3 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:54,087 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:54,087 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] [2024-11-09 07:09:54,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-09 07:09:54,087 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-09 07:09:54,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:54,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1425528326, now seen corresponding path program 1 times [2024-11-09 07:09:54,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:54,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416246961] [2024-11-09 07:09:54,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:54,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:54,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:54,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:54,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:54,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416246961] [2024-11-09 07:09:54,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416246961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:54,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:54,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:54,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990496681] [2024-11-09 07:09:54,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:54,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:54,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:54,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:54,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:54,157 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 405 [2024-11-09 07:09:54,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 143 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 310.0) internal successors, (930), 3 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:54,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:54,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 405 [2024-11-09 07:09:54,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:54,226 INFO L124 PetriNetUnfolderBase]: 11/465 cut-off events. [2024-11-09 07:09:54,227 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-09 07:09:54,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 581 conditions, 465 events. 11/465 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1010 event pairs, 0 based on Foata normal form. 10/454 useless extension candidates. Maximal degree in co-relation 548. Up to 55 conditions per place. [2024-11-09 07:09:54,229 INFO L140 encePairwiseOnDemand]: 399/405 looper letters, 17 selfloop transitions, 1 changer transitions 24/138 dead transitions. [2024-11-09 07:09:54,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 138 transitions, 374 flow [2024-11-09 07:09:54,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:54,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:54,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 952 transitions. [2024-11-09 07:09:54,232 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7835390946502058 [2024-11-09 07:09:54,232 INFO L175 Difference]: Start difference. First operand has 165 places, 143 transitions, 344 flow. Second operand 3 states and 952 transitions. [2024-11-09 07:09:54,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 138 transitions, 374 flow [2024-11-09 07:09:54,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 138 transitions, 370 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:54,235 INFO L231 Difference]: Finished difference. Result has 159 places, 114 transitions, 282 flow [2024-11-09 07:09:54,235 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=159, PETRI_TRANSITIONS=114} [2024-11-09 07:09:54,236 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, -6 predicate places. [2024-11-09 07:09:54,236 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 114 transitions, 282 flow [2024-11-09 07:09:54,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 310.0) internal successors, (930), 3 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:54,237 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:54,237 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:54,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-09 07:09:54,237 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-09 07:09:54,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:54,238 INFO L85 PathProgramCache]: Analyzing trace with hash -751325389, now seen corresponding path program 1 times [2024-11-09 07:09:54,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:54,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868623975] [2024-11-09 07:09:54,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:54,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:54,340 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2024-11-09 07:09:54,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:54,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868623975] [2024-11-09 07:09:54,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868623975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:54,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:54,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:09:54,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072231140] [2024-11-09 07:09:54,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:54,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:09:54,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:54,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:09:54,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:09:54,405 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 405 [2024-11-09 07:09:54,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 114 transitions, 282 flow. Second operand has 5 states, 5 states have (on average 339.8) internal successors, (1699), 5 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:54,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:54,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 405 [2024-11-09 07:09:54,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:54,496 INFO L124 PetriNetUnfolderBase]: 0/238 cut-off events. [2024-11-09 07:09:54,496 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2024-11-09 07:09:54,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 238 events. 0/238 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 136 event pairs, 0 based on Foata normal form. 1/238 useless extension candidates. Maximal degree in co-relation 0. Up to 35 conditions per place. [2024-11-09 07:09:54,497 INFO L140 encePairwiseOnDemand]: 400/405 looper letters, 17 selfloop transitions, 2 changer transitions 3/116 dead transitions. [2024-11-09 07:09:54,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 116 transitions, 330 flow [2024-11-09 07:09:54,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:09:54,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:09:54,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1703 transitions. [2024-11-09 07:09:54,500 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8409876543209877 [2024-11-09 07:09:54,501 INFO L175 Difference]: Start difference. First operand has 159 places, 114 transitions, 282 flow. Second operand 5 states and 1703 transitions. [2024-11-09 07:09:54,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 116 transitions, 330 flow [2024-11-09 07:09:54,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 116 transitions, 329 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:54,503 INFO L231 Difference]: Finished difference. Result has 139 places, 113 transitions, 287 flow [2024-11-09 07:09:54,503 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=287, PETRI_PLACES=139, PETRI_TRANSITIONS=113} [2024-11-09 07:09:54,504 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, -26 predicate places. [2024-11-09 07:09:54,504 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 113 transitions, 287 flow [2024-11-09 07:09:54,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 339.8) internal successors, (1699), 5 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:54,505 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:54,505 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:54,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-09 07:09:54,505 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-09 07:09:54,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:54,506 INFO L85 PathProgramCache]: Analyzing trace with hash -139926656, now seen corresponding path program 1 times [2024-11-09 07:09:54,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:54,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375941951] [2024-11-09 07:09:54,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:54,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:54,527 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:54,553 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:54,553 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:54,553 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-11-09 07:09:54,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2024-11-09 07:09:54,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2024-11-09 07:09:54,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2024-11-09 07:09:54,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2024-11-09 07:09:54,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2024-11-09 07:09:54,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 17 remaining) [2024-11-09 07:09:54,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2024-11-09 07:09:54,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2024-11-09 07:09:54,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2024-11-09 07:09:54,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2024-11-09 07:09:54,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2024-11-09 07:09:54,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2024-11-09 07:09:54,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2024-11-09 07:09:54,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2024-11-09 07:09:54,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2024-11-09 07:09:54,556 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2024-11-09 07:09:54,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-09 07:09:54,556 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:54,557 WARN L244 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:54,557 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2024-11-09 07:09:54,623 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:54,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 441 places, 442 transitions, 1144 flow [2024-11-09 07:09:54,700 INFO L124 PetriNetUnfolderBase]: 57/735 cut-off events. [2024-11-09 07:09:54,700 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2024-11-09 07:09:54,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 843 conditions, 735 events. 57/735 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1945 event pairs, 0 based on Foata normal form. 0/641 useless extension candidates. Maximal degree in co-relation 822. Up to 22 conditions per place. [2024-11-09 07:09:54,704 INFO L82 GeneralOperation]: Start removeDead. Operand has 441 places, 442 transitions, 1144 flow [2024-11-09 07:09:54,707 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 155 transitions, 443 flow [2024-11-09 07:09:54,708 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:54,708 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:54,708 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-09 07:09:54,709 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:54,709 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:09:54,710 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:54,710 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:54,710 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:54,710 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-09 07:09:54,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:54,710 INFO L85 PathProgramCache]: Analyzing trace with hash -516950525, now seen corresponding path program 1 times [2024-11-09 07:09:54,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:54,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570459261] [2024-11-09 07:09:54,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:54,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:54,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:54,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:54,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:54,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570459261] [2024-11-09 07:09:54,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570459261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:54,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:54,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:54,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858536124] [2024-11-09 07:09:54,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:54,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:54,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:54,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:54,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:54,798 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 359 out of 442 [2024-11-09 07:09:54,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 155 transitions, 443 flow. Second operand has 3 states, 3 states have (on average 360.3333333333333) internal successors, (1081), 3 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:54,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:54,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 442 [2024-11-09 07:09:54,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:54,913 INFO L124 PetriNetUnfolderBase]: 23/568 cut-off events. [2024-11-09 07:09:54,914 INFO L125 PetriNetUnfolderBase]: For 276/276 co-relation queries the response was YES. [2024-11-09 07:09:54,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 568 events. 23/568 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1478 event pairs, 11 based on Foata normal form. 23/542 useless extension candidates. Maximal degree in co-relation 669. Up to 83 conditions per place. [2024-11-09 07:09:54,916 INFO L140 encePairwiseOnDemand]: 436/442 looper letters, 20 selfloop transitions, 2 changer transitions 1/151 dead transitions. [2024-11-09 07:09:54,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 151 transitions, 479 flow [2024-11-09 07:09:54,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:54,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:54,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1103 transitions. [2024-11-09 07:09:54,919 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8318250377073907 [2024-11-09 07:09:54,919 INFO L175 Difference]: Start difference. First operand has 174 places, 155 transitions, 443 flow. Second operand 3 states and 1103 transitions. [2024-11-09 07:09:54,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 151 transitions, 479 flow [2024-11-09 07:09:54,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 151 transitions, 406 flow, removed 36 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:54,923 INFO L231 Difference]: Finished difference. Result has 174 places, 150 transitions, 364 flow [2024-11-09 07:09:54,923 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=364, PETRI_PLACES=174, PETRI_TRANSITIONS=150} [2024-11-09 07:09:54,927 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, 0 predicate places. [2024-11-09 07:09:54,927 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 150 transitions, 364 flow [2024-11-09 07:09:54,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 360.3333333333333) internal successors, (1081), 3 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:54,927 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:54,927 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] [2024-11-09 07:09:54,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-09 07:09:54,928 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-09 07:09:54,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:54,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1103457926, now seen corresponding path program 1 times [2024-11-09 07:09:54,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:54,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311645240] [2024-11-09 07:09:54,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:54,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:54,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:54,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:54,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311645240] [2024-11-09 07:09:54,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311645240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:54,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:54,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:54,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799982008] [2024-11-09 07:09:54,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:54,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:54,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:54,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:54,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:54,994 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 442 [2024-11-09 07:09:54,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 150 transitions, 364 flow. Second operand has 3 states, 3 states have (on average 338.0) internal successors, (1014), 3 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:54,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:54,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 442 [2024-11-09 07:09:54,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:55,071 INFO L124 PetriNetUnfolderBase]: 12/509 cut-off events. [2024-11-09 07:09:55,071 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-09 07:09:55,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 636 conditions, 509 events. 12/509 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1117 event pairs, 0 based on Foata normal form. 11/497 useless extension candidates. Maximal degree in co-relation 602. Up to 60 conditions per place. [2024-11-09 07:09:55,075 INFO L140 encePairwiseOnDemand]: 436/442 looper letters, 18 selfloop transitions, 1 changer transitions 24/145 dead transitions. [2024-11-09 07:09:55,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 145 transitions, 396 flow [2024-11-09 07:09:55,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:55,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:55,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1037 transitions. [2024-11-09 07:09:55,077 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.782051282051282 [2024-11-09 07:09:55,077 INFO L175 Difference]: Start difference. First operand has 174 places, 150 transitions, 364 flow. Second operand 3 states and 1037 transitions. [2024-11-09 07:09:55,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 145 transitions, 396 flow [2024-11-09 07:09:55,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 145 transitions, 392 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:55,080 INFO L231 Difference]: Finished difference. Result has 168 places, 121 transitions, 302 flow [2024-11-09 07:09:55,080 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=302, PETRI_PLACES=168, PETRI_TRANSITIONS=121} [2024-11-09 07:09:55,081 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -6 predicate places. [2024-11-09 07:09:55,081 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 121 transitions, 302 flow [2024-11-09 07:09:55,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.0) internal successors, (1014), 3 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:55,082 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:55,082 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:55,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-09 07:09:55,082 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-09 07:09:55,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:55,083 INFO L85 PathProgramCache]: Analyzing trace with hash 195795815, now seen corresponding path program 1 times [2024-11-09 07:09:55,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:55,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856781542] [2024-11-09 07:09:55,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:55,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:55,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:55,181 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2024-11-09 07:09:55,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:55,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856781542] [2024-11-09 07:09:55,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856781542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:55,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:55,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:09:55,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021310421] [2024-11-09 07:09:55,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:55,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:09:55,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:55,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:09:55,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:09:55,254 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 442 [2024-11-09 07:09:55,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 121 transitions, 302 flow. Second operand has 5 states, 5 states have (on average 371.0) internal successors, (1855), 5 states have internal predecessors, (1855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:55,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:55,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 442 [2024-11-09 07:09:55,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:55,305 INFO L124 PetriNetUnfolderBase]: 0/258 cut-off events. [2024-11-09 07:09:55,305 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2024-11-09 07:09:55,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 258 events. 0/258 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 147 event pairs, 0 based on Foata normal form. 1/258 useless extension candidates. Maximal degree in co-relation 0. Up to 38 conditions per place. [2024-11-09 07:09:55,306 INFO L140 encePairwiseOnDemand]: 437/442 looper letters, 18 selfloop transitions, 2 changer transitions 3/123 dead transitions. [2024-11-09 07:09:55,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 123 transitions, 352 flow [2024-11-09 07:09:55,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:09:55,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:09:55,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1859 transitions. [2024-11-09 07:09:55,309 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8411764705882353 [2024-11-09 07:09:55,309 INFO L175 Difference]: Start difference. First operand has 168 places, 121 transitions, 302 flow. Second operand 5 states and 1859 transitions. [2024-11-09 07:09:55,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 123 transitions, 352 flow [2024-11-09 07:09:55,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 123 transitions, 351 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:55,312 INFO L231 Difference]: Finished difference. Result has 148 places, 120 transitions, 307 flow [2024-11-09 07:09:55,312 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=307, PETRI_PLACES=148, PETRI_TRANSITIONS=120} [2024-11-09 07:09:55,313 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -26 predicate places. [2024-11-09 07:09:55,313 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 120 transitions, 307 flow [2024-11-09 07:09:55,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 371.0) internal successors, (1855), 5 states have internal predecessors, (1855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:55,314 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:55,314 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:55,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-09 07:09:55,314 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-09 07:09:55,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:55,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1210927802, now seen corresponding path program 1 times [2024-11-09 07:09:55,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:55,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452675704] [2024-11-09 07:09:55,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:55,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:55,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:55,364 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:55,398 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:55,399 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:55,399 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-09 07:09:55,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-09 07:09:55,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-09 07:09:55,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-09 07:09:55,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-09 07:09:55,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-09 07:09:55,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 18 remaining) [2024-11-09 07:09:55,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-09 07:09:55,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-09 07:09:55,401 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-09 07:09:55,401 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-09 07:09:55,401 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-09 07:09:55,401 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-09 07:09:55,401 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-09 07:09:55,401 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-09 07:09:55,401 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-09 07:09:55,402 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-09 07:09:55,402 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-09 07:09:55,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-09 07:09:55,402 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:55,403 WARN L244 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:55,403 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2024-11-09 07:09:55,485 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:55,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 478 places, 479 transitions, 1266 flow [2024-11-09 07:09:55,613 INFO L124 PetriNetUnfolderBase]: 62/799 cut-off events. [2024-11-09 07:09:55,614 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2024-11-09 07:09:55,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 923 conditions, 799 events. 62/799 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2150 event pairs, 0 based on Foata normal form. 0/697 useless extension candidates. Maximal degree in co-relation 900. Up to 24 conditions per place. [2024-11-09 07:09:55,618 INFO L82 GeneralOperation]: Start removeDead. Operand has 478 places, 479 transitions, 1266 flow [2024-11-09 07:09:55,621 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 183 places, 162 transitions, 481 flow [2024-11-09 07:09:55,622 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:55,622 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:55,622 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-09 07:09:55,624 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:55,624 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:09:55,624 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:55,624 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:55,625 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:55,625 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-09 07:09:55,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:55,625 INFO L85 PathProgramCache]: Analyzing trace with hash 475051267, now seen corresponding path program 1 times [2024-11-09 07:09:55,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:55,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824332051] [2024-11-09 07:09:55,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:55,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:55,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:55,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:55,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824332051] [2024-11-09 07:09:55,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824332051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:55,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:55,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:55,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843311782] [2024-11-09 07:09:55,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:55,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:55,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:55,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:55,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:55,711 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 479 [2024-11-09 07:09:55,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 162 transitions, 481 flow. Second operand has 3 states, 3 states have (on average 390.3333333333333) internal successors, (1171), 3 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:55,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:55,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 479 [2024-11-09 07:09:55,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:55,814 INFO L124 PetriNetUnfolderBase]: 25/617 cut-off events. [2024-11-09 07:09:55,814 INFO L125 PetriNetUnfolderBase]: For 353/353 co-relation queries the response was YES. [2024-11-09 07:09:55,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 823 conditions, 617 events. 25/617 cut-off events. For 353/353 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1625 event pairs, 12 based on Foata normal form. 25/589 useless extension candidates. Maximal degree in co-relation 738. Up to 90 conditions per place. [2024-11-09 07:09:55,818 INFO L140 encePairwiseOnDemand]: 473/479 looper letters, 21 selfloop transitions, 2 changer transitions 1/158 dead transitions. [2024-11-09 07:09:55,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 158 transitions, 519 flow [2024-11-09 07:09:55,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:55,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:55,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1194 transitions. [2024-11-09 07:09:55,820 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8308977035490606 [2024-11-09 07:09:55,820 INFO L175 Difference]: Start difference. First operand has 183 places, 162 transitions, 481 flow. Second operand 3 states and 1194 transitions. [2024-11-09 07:09:55,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 158 transitions, 519 flow [2024-11-09 07:09:55,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 158 transitions, 428 flow, removed 45 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:55,824 INFO L231 Difference]: Finished difference. Result has 183 places, 157 transitions, 384 flow [2024-11-09 07:09:55,824 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=479, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=384, PETRI_PLACES=183, PETRI_TRANSITIONS=157} [2024-11-09 07:09:55,824 INFO L277 CegarLoopForPetriNet]: 183 programPoint places, 0 predicate places. [2024-11-09 07:09:55,825 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 157 transitions, 384 flow [2024-11-09 07:09:55,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 390.3333333333333) internal successors, (1171), 3 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:55,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:55,825 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] [2024-11-09 07:09:55,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-09 07:09:55,826 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-09 07:09:55,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:55,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1901047110, now seen corresponding path program 1 times [2024-11-09 07:09:55,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:55,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742528861] [2024-11-09 07:09:55,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:55,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:55,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:55,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:55,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742528861] [2024-11-09 07:09:55,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742528861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:55,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:55,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:55,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061028202] [2024-11-09 07:09:55,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:55,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:55,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:55,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:55,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:55,903 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 479 [2024-11-09 07:09:55,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 157 transitions, 384 flow. Second operand has 3 states, 3 states have (on average 366.0) internal successors, (1098), 3 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:55,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:55,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 479 [2024-11-09 07:09:55,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:56,005 INFO L124 PetriNetUnfolderBase]: 13/553 cut-off events. [2024-11-09 07:09:56,005 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2024-11-09 07:09:56,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 691 conditions, 553 events. 13/553 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1225 event pairs, 0 based on Foata normal form. 12/540 useless extension candidates. Maximal degree in co-relation 656. Up to 65 conditions per place. [2024-11-09 07:09:56,007 INFO L140 encePairwiseOnDemand]: 473/479 looper letters, 19 selfloop transitions, 1 changer transitions 24/152 dead transitions. [2024-11-09 07:09:56,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 152 transitions, 418 flow [2024-11-09 07:09:56,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:56,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:56,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1122 transitions. [2024-11-09 07:09:56,010 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7807933194154488 [2024-11-09 07:09:56,010 INFO L175 Difference]: Start difference. First operand has 183 places, 157 transitions, 384 flow. Second operand 3 states and 1122 transitions. [2024-11-09 07:09:56,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 152 transitions, 418 flow [2024-11-09 07:09:56,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 152 transitions, 414 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:56,013 INFO L231 Difference]: Finished difference. Result has 177 places, 128 transitions, 322 flow [2024-11-09 07:09:56,013 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=479, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=177, PETRI_TRANSITIONS=128} [2024-11-09 07:09:56,014 INFO L277 CegarLoopForPetriNet]: 183 programPoint places, -6 predicate places. [2024-11-09 07:09:56,014 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 128 transitions, 322 flow [2024-11-09 07:09:56,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 366.0) internal successors, (1098), 3 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:56,015 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:56,016 INFO L204 CegarLoopForPetriNet]: trace histogram [12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:56,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-09 07:09:56,016 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-09 07:09:56,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:56,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1343247129, now seen corresponding path program 1 times [2024-11-09 07:09:56,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:56,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018665385] [2024-11-09 07:09:56,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:56,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:56,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:56,123 INFO L134 CoverageAnalysis]: Checked inductivity of 858 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 825 trivial. 0 not checked. [2024-11-09 07:09:56,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:56,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018665385] [2024-11-09 07:09:56,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018665385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:56,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:56,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:09:56,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251421680] [2024-11-09 07:09:56,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:56,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:09:56,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:56,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:09:56,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:09:56,194 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 479 [2024-11-09 07:09:56,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 128 transitions, 322 flow. Second operand has 5 states, 5 states have (on average 402.2) internal successors, (2011), 5 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:56,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:56,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 479 [2024-11-09 07:09:56,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:56,247 INFO L124 PetriNetUnfolderBase]: 0/278 cut-off events. [2024-11-09 07:09:56,247 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2024-11-09 07:09:56,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 278 events. 0/278 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 159 event pairs, 0 based on Foata normal form. 1/278 useless extension candidates. Maximal degree in co-relation 0. Up to 41 conditions per place. [2024-11-09 07:09:56,248 INFO L140 encePairwiseOnDemand]: 474/479 looper letters, 19 selfloop transitions, 2 changer transitions 3/130 dead transitions. [2024-11-09 07:09:56,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 130 transitions, 374 flow [2024-11-09 07:09:56,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:09:56,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:09:56,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2015 transitions. [2024-11-09 07:09:56,251 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8413361169102297 [2024-11-09 07:09:56,251 INFO L175 Difference]: Start difference. First operand has 177 places, 128 transitions, 322 flow. Second operand 5 states and 2015 transitions. [2024-11-09 07:09:56,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 130 transitions, 374 flow [2024-11-09 07:09:56,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 130 transitions, 373 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:56,254 INFO L231 Difference]: Finished difference. Result has 157 places, 127 transitions, 327 flow [2024-11-09 07:09:56,254 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=479, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=327, PETRI_PLACES=157, PETRI_TRANSITIONS=127} [2024-11-09 07:09:56,255 INFO L277 CegarLoopForPetriNet]: 183 programPoint places, -26 predicate places. [2024-11-09 07:09:56,255 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 127 transitions, 327 flow [2024-11-09 07:09:56,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 402.2) internal successors, (2011), 5 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:56,256 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:56,256 INFO L204 CegarLoopForPetriNet]: trace histogram [12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:56,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-09 07:09:56,256 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-09 07:09:56,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:56,256 INFO L85 PathProgramCache]: Analyzing trace with hash -38338405, now seen corresponding path program 1 times [2024-11-09 07:09:56,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:56,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419176244] [2024-11-09 07:09:56,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:56,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:56,278 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:56,312 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:56,312 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:56,312 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2024-11-09 07:09:56,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2024-11-09 07:09:56,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2024-11-09 07:09:56,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2024-11-09 07:09:56,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2024-11-09 07:09:56,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2024-11-09 07:09:56,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 19 remaining) [2024-11-09 07:09:56,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2024-11-09 07:09:56,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2024-11-09 07:09:56,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2024-11-09 07:09:56,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2024-11-09 07:09:56,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 19 remaining) [2024-11-09 07:09:56,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2024-11-09 07:09:56,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2024-11-09 07:09:56,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2024-11-09 07:09:56,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2024-11-09 07:09:56,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2024-11-09 07:09:56,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2024-11-09 07:09:56,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2024-11-09 07:09:56,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-09 07:09:56,315 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:56,315 WARN L244 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:56,315 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2024-11-09 07:09:56,382 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:56,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 515 places, 516 transitions, 1392 flow [2024-11-09 07:09:56,477 INFO L124 PetriNetUnfolderBase]: 67/863 cut-off events. [2024-11-09 07:09:56,478 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2024-11-09 07:09:56,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1004 conditions, 863 events. 67/863 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2340 event pairs, 0 based on Foata normal form. 0/753 useless extension candidates. Maximal degree in co-relation 979. Up to 26 conditions per place. [2024-11-09 07:09:56,482 INFO L82 GeneralOperation]: Start removeDead. Operand has 515 places, 516 transitions, 1392 flow [2024-11-09 07:09:56,484 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 192 places, 169 transitions, 521 flow [2024-11-09 07:09:56,485 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:56,485 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:56,485 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-09 07:09:56,486 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:56,486 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:09:56,486 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:56,486 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:56,486 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:56,487 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-09 07:09:56,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:56,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1418148099, now seen corresponding path program 1 times [2024-11-09 07:09:56,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:56,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193402086] [2024-11-09 07:09:56,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:56,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:56,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:56,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:56,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193402086] [2024-11-09 07:09:56,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193402086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:56,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:56,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:56,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112944252] [2024-11-09 07:09:56,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:56,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:56,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:56,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:56,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:56,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 419 out of 516 [2024-11-09 07:09:56,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 169 transitions, 521 flow. Second operand has 3 states, 3 states have (on average 420.3333333333333) internal successors, (1261), 3 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:56,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:56,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 419 of 516 [2024-11-09 07:09:56,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:56,687 INFO L124 PetriNetUnfolderBase]: 27/666 cut-off events. [2024-11-09 07:09:56,687 INFO L125 PetriNetUnfolderBase]: For 443/443 co-relation queries the response was YES. [2024-11-09 07:09:56,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 895 conditions, 666 events. 27/666 cut-off events. For 443/443 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1773 event pairs, 13 based on Foata normal form. 27/636 useless extension candidates. Maximal degree in co-relation 808. Up to 97 conditions per place. [2024-11-09 07:09:56,692 INFO L140 encePairwiseOnDemand]: 510/516 looper letters, 22 selfloop transitions, 2 changer transitions 1/165 dead transitions. [2024-11-09 07:09:56,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 165 transitions, 561 flow [2024-11-09 07:09:56,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:56,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:56,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1285 transitions. [2024-11-09 07:09:56,694 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8301033591731266 [2024-11-09 07:09:56,694 INFO L175 Difference]: Start difference. First operand has 192 places, 169 transitions, 521 flow. Second operand 3 states and 1285 transitions. [2024-11-09 07:09:56,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 165 transitions, 561 flow [2024-11-09 07:09:56,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 165 transitions, 450 flow, removed 55 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:56,698 INFO L231 Difference]: Finished difference. Result has 192 places, 164 transitions, 404 flow [2024-11-09 07:09:56,698 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=516, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=404, PETRI_PLACES=192, PETRI_TRANSITIONS=164} [2024-11-09 07:09:56,699 INFO L277 CegarLoopForPetriNet]: 192 programPoint places, 0 predicate places. [2024-11-09 07:09:56,699 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 164 transitions, 404 flow [2024-11-09 07:09:56,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 420.3333333333333) internal successors, (1261), 3 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:56,699 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:56,700 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] [2024-11-09 07:09:56,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-09 07:09:56,700 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-09 07:09:56,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:56,700 INFO L85 PathProgramCache]: Analyzing trace with hash -476671418, now seen corresponding path program 1 times [2024-11-09 07:09:56,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:56,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395265211] [2024-11-09 07:09:56,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:56,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:56,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:56,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:56,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395265211] [2024-11-09 07:09:56,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395265211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:56,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:56,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:56,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610825949] [2024-11-09 07:09:56,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:56,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:56,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:56,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:56,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:56,771 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 516 [2024-11-09 07:09:56,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 164 transitions, 404 flow. Second operand has 3 states, 3 states have (on average 394.0) internal successors, (1182), 3 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:56,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:56,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 516 [2024-11-09 07:09:56,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:56,859 INFO L124 PetriNetUnfolderBase]: 14/597 cut-off events. [2024-11-09 07:09:56,860 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-11-09 07:09:56,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 746 conditions, 597 events. 14/597 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1334 event pairs, 0 based on Foata normal form. 13/583 useless extension candidates. Maximal degree in co-relation 710. Up to 70 conditions per place. [2024-11-09 07:09:56,863 INFO L140 encePairwiseOnDemand]: 510/516 looper letters, 20 selfloop transitions, 1 changer transitions 24/159 dead transitions. [2024-11-09 07:09:56,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 159 transitions, 440 flow [2024-11-09 07:09:56,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:56,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:56,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1207 transitions. [2024-11-09 07:09:56,865 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7797157622739018 [2024-11-09 07:09:56,865 INFO L175 Difference]: Start difference. First operand has 192 places, 164 transitions, 404 flow. Second operand 3 states and 1207 transitions. [2024-11-09 07:09:56,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 159 transitions, 440 flow [2024-11-09 07:09:56,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 159 transitions, 436 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:56,868 INFO L231 Difference]: Finished difference. Result has 186 places, 135 transitions, 342 flow [2024-11-09 07:09:56,869 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=516, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=186, PETRI_TRANSITIONS=135} [2024-11-09 07:09:56,869 INFO L277 CegarLoopForPetriNet]: 192 programPoint places, -6 predicate places. [2024-11-09 07:09:56,869 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 135 transitions, 342 flow [2024-11-09 07:09:56,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 394.0) internal successors, (1182), 3 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:56,870 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:56,870 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:56,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-09 07:09:56,871 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-09 07:09:56,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:56,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1770390803, now seen corresponding path program 1 times [2024-11-09 07:09:56,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:56,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267857432] [2024-11-09 07:09:56,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:56,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:56,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 984 trivial. 0 not checked. [2024-11-09 07:09:56,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:56,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267857432] [2024-11-09 07:09:56,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267857432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:56,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:56,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:09:56,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272196971] [2024-11-09 07:09:56,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:56,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:09:56,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:56,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:09:56,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:09:57,047 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 516 [2024-11-09 07:09:57,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 135 transitions, 342 flow. Second operand has 5 states, 5 states have (on average 433.4) internal successors, (2167), 5 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:57,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:57,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 516 [2024-11-09 07:09:57,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:57,106 INFO L124 PetriNetUnfolderBase]: 0/298 cut-off events. [2024-11-09 07:09:57,106 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2024-11-09 07:09:57,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 298 events. 0/298 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 172 event pairs, 0 based on Foata normal form. 1/298 useless extension candidates. Maximal degree in co-relation 0. Up to 44 conditions per place. [2024-11-09 07:09:57,107 INFO L140 encePairwiseOnDemand]: 511/516 looper letters, 20 selfloop transitions, 2 changer transitions 3/137 dead transitions. [2024-11-09 07:09:57,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 137 transitions, 396 flow [2024-11-09 07:09:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:09:57,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:09:57,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2171 transitions. [2024-11-09 07:09:57,110 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8414728682170542 [2024-11-09 07:09:57,110 INFO L175 Difference]: Start difference. First operand has 186 places, 135 transitions, 342 flow. Second operand 5 states and 2171 transitions. [2024-11-09 07:09:57,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 137 transitions, 396 flow [2024-11-09 07:09:57,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 137 transitions, 395 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:57,133 INFO L231 Difference]: Finished difference. Result has 166 places, 134 transitions, 347 flow [2024-11-09 07:09:57,133 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=516, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=347, PETRI_PLACES=166, PETRI_TRANSITIONS=134} [2024-11-09 07:09:57,134 INFO L277 CegarLoopForPetriNet]: 192 programPoint places, -26 predicate places. [2024-11-09 07:09:57,134 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 134 transitions, 347 flow [2024-11-09 07:09:57,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 433.4) internal successors, (2167), 5 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:57,135 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:57,135 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:57,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-09 07:09:57,135 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-09 07:09:57,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:57,136 INFO L85 PathProgramCache]: Analyzing trace with hash -330165053, now seen corresponding path program 1 times [2024-11-09 07:09:57,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:57,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722361117] [2024-11-09 07:09:57,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:57,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:57,162 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:57,213 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:57,213 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:57,213 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-09 07:09:57,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-09 07:09:57,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-09 07:09:57,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-09 07:09:57,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-09 07:09:57,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-09 07:09:57,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 20 remaining) [2024-11-09 07:09:57,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-09 07:09:57,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-09 07:09:57,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-09 07:09:57,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-09 07:09:57,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-09 07:09:57,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-09 07:09:57,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-09 07:09:57,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-09 07:09:57,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-09 07:09:57,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-09 07:09:57,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-09 07:09:57,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-09 07:09:57,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-09 07:09:57,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-09 07:09:57,216 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:57,216 WARN L244 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:57,216 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2024-11-09 07:09:57,290 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:57,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 552 places, 553 transitions, 1522 flow [2024-11-09 07:09:57,409 INFO L124 PetriNetUnfolderBase]: 72/927 cut-off events. [2024-11-09 07:09:57,410 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2024-11-09 07:09:57,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1086 conditions, 927 events. 72/927 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2634 event pairs, 0 based on Foata normal form. 0/809 useless extension candidates. Maximal degree in co-relation 1059. Up to 28 conditions per place. [2024-11-09 07:09:57,415 INFO L82 GeneralOperation]: Start removeDead. Operand has 552 places, 553 transitions, 1522 flow [2024-11-09 07:09:57,418 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 201 places, 176 transitions, 563 flow [2024-11-09 07:09:57,418 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:57,419 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:57,420 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-09 07:09:57,421 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:57,421 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:09:57,421 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:57,422 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:57,422 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:57,422 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-09 07:09:57,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:57,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1982627325, now seen corresponding path program 1 times [2024-11-09 07:09:57,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:57,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402221104] [2024-11-09 07:09:57,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:57,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:57,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:57,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:57,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402221104] [2024-11-09 07:09:57,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402221104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:57,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:57,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:57,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104071471] [2024-11-09 07:09:57,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:57,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:57,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:57,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:57,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:57,529 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 553 [2024-11-09 07:09:57,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 176 transitions, 563 flow. Second operand has 3 states, 3 states have (on average 450.3333333333333) internal successors, (1351), 3 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:57,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:57,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 553 [2024-11-09 07:09:57,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:57,647 INFO L124 PetriNetUnfolderBase]: 29/715 cut-off events. [2024-11-09 07:09:57,647 INFO L125 PetriNetUnfolderBase]: For 547/547 co-relation queries the response was YES. [2024-11-09 07:09:57,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 968 conditions, 715 events. 29/715 cut-off events. For 547/547 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1875 event pairs, 14 based on Foata normal form. 15/669 useless extension candidates. Maximal degree in co-relation 879. Up to 104 conditions per place. [2024-11-09 07:09:57,655 INFO L140 encePairwiseOnDemand]: 547/553 looper letters, 23 selfloop transitions, 2 changer transitions 1/172 dead transitions. [2024-11-09 07:09:57,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 172 transitions, 605 flow [2024-11-09 07:09:57,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:57,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:57,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1376 transitions. [2024-11-09 07:09:57,657 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8294153104279687 [2024-11-09 07:09:57,657 INFO L175 Difference]: Start difference. First operand has 201 places, 176 transitions, 563 flow. Second operand 3 states and 1376 transitions. [2024-11-09 07:09:57,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 172 transitions, 605 flow [2024-11-09 07:09:57,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 172 transitions, 472 flow, removed 66 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:57,661 INFO L231 Difference]: Finished difference. Result has 201 places, 171 transitions, 424 flow [2024-11-09 07:09:57,662 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=553, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=424, PETRI_PLACES=201, PETRI_TRANSITIONS=171} [2024-11-09 07:09:57,662 INFO L277 CegarLoopForPetriNet]: 201 programPoint places, 0 predicate places. [2024-11-09 07:09:57,663 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 171 transitions, 424 flow [2024-11-09 07:09:57,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 450.3333333333333) internal successors, (1351), 3 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:57,663 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:57,663 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] [2024-11-09 07:09:57,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-09 07:09:57,664 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-09 07:09:57,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:57,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1734730362, now seen corresponding path program 1 times [2024-11-09 07:09:57,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:57,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136621762] [2024-11-09 07:09:57,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:57,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:57,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:57,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:57,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136621762] [2024-11-09 07:09:57,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136621762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:57,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:57,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:57,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618811162] [2024-11-09 07:09:57,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:57,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:57,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:57,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:57,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:57,739 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 421 out of 553 [2024-11-09 07:09:57,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 171 transitions, 424 flow. Second operand has 3 states, 3 states have (on average 422.0) internal successors, (1266), 3 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:57,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:57,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 421 of 553 [2024-11-09 07:09:57,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:57,900 INFO L124 PetriNetUnfolderBase]: 15/641 cut-off events. [2024-11-09 07:09:57,900 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2024-11-09 07:09:57,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 801 conditions, 641 events. 15/641 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1396 event pairs, 0 based on Foata normal form. 14/626 useless extension candidates. Maximal degree in co-relation 764. Up to 75 conditions per place. [2024-11-09 07:09:57,906 INFO L140 encePairwiseOnDemand]: 547/553 looper letters, 21 selfloop transitions, 1 changer transitions 24/166 dead transitions. [2024-11-09 07:09:57,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 166 transitions, 462 flow [2024-11-09 07:09:57,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:57,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:57,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1292 transitions. [2024-11-09 07:09:57,908 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7787823990355636 [2024-11-09 07:09:57,909 INFO L175 Difference]: Start difference. First operand has 201 places, 171 transitions, 424 flow. Second operand 3 states and 1292 transitions. [2024-11-09 07:09:57,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 166 transitions, 462 flow [2024-11-09 07:09:57,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 166 transitions, 458 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:57,912 INFO L231 Difference]: Finished difference. Result has 195 places, 142 transitions, 362 flow [2024-11-09 07:09:57,912 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=553, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=362, PETRI_PLACES=195, PETRI_TRANSITIONS=142} [2024-11-09 07:09:57,913 INFO L277 CegarLoopForPetriNet]: 201 programPoint places, -6 predicate places. [2024-11-09 07:09:57,913 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 142 transitions, 362 flow [2024-11-09 07:09:57,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 422.0) internal successors, (1266), 3 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:57,914 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:57,914 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:57,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-09 07:09:57,914 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-09 07:09:57,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:57,915 INFO L85 PathProgramCache]: Analyzing trace with hash -925268661, now seen corresponding path program 1 times [2024-11-09 07:09:57,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:57,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351875969] [2024-11-09 07:09:57,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:57,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:58,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1196 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 1157 trivial. 0 not checked. [2024-11-09 07:09:58,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:58,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351875969] [2024-11-09 07:09:58,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351875969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:58,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:58,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:09:58,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573907839] [2024-11-09 07:09:58,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:58,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:09:58,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:58,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:09:58,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:09:58,154 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 553 [2024-11-09 07:09:58,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 142 transitions, 362 flow. Second operand has 5 states, 5 states have (on average 464.6) internal successors, (2323), 5 states have internal predecessors, (2323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:58,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:58,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 553 [2024-11-09 07:09:58,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:58,247 INFO L124 PetriNetUnfolderBase]: 0/318 cut-off events. [2024-11-09 07:09:58,248 INFO L125 PetriNetUnfolderBase]: For 115/115 co-relation queries the response was YES. [2024-11-09 07:09:58,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 318 events. 0/318 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 183 event pairs, 0 based on Foata normal form. 1/318 useless extension candidates. Maximal degree in co-relation 0. Up to 47 conditions per place. [2024-11-09 07:09:58,249 INFO L140 encePairwiseOnDemand]: 548/553 looper letters, 21 selfloop transitions, 2 changer transitions 3/144 dead transitions. [2024-11-09 07:09:58,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 144 transitions, 418 flow [2024-11-09 07:09:58,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:09:58,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:09:58,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2327 transitions. [2024-11-09 07:09:58,251 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8415913200723327 [2024-11-09 07:09:58,251 INFO L175 Difference]: Start difference. First operand has 195 places, 142 transitions, 362 flow. Second operand 5 states and 2327 transitions. [2024-11-09 07:09:58,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 144 transitions, 418 flow [2024-11-09 07:09:58,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 144 transitions, 417 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:58,254 INFO L231 Difference]: Finished difference. Result has 175 places, 141 transitions, 367 flow [2024-11-09 07:09:58,254 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=553, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=367, PETRI_PLACES=175, PETRI_TRANSITIONS=141} [2024-11-09 07:09:58,254 INFO L277 CegarLoopForPetriNet]: 201 programPoint places, -26 predicate places. [2024-11-09 07:09:58,255 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 141 transitions, 367 flow [2024-11-09 07:09:58,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 464.6) internal successors, (2323), 5 states have internal predecessors, (2323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:58,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:58,255 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:58,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-09 07:09:58,256 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-09 07:09:58,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:58,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1324910894, now seen corresponding path program 1 times [2024-11-09 07:09:58,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:58,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022228807] [2024-11-09 07:09:58,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:58,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:58,281 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:58,319 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:58,319 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:58,319 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-09 07:09:58,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2024-11-09 07:09:58,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2024-11-09 07:09:58,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2024-11-09 07:09:58,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2024-11-09 07:09:58,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2024-11-09 07:09:58,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 21 remaining) [2024-11-09 07:09:58,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2024-11-09 07:09:58,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2024-11-09 07:09:58,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining) [2024-11-09 07:09:58,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2024-11-09 07:09:58,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2024-11-09 07:09:58,320 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2024-11-09 07:09:58,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2024-11-09 07:09:58,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2024-11-09 07:09:58,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2024-11-09 07:09:58,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2024-11-09 07:09:58,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2024-11-09 07:09:58,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2024-11-09 07:09:58,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2024-11-09 07:09:58,321 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2024-11-09 07:09:58,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-09 07:09:58,321 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:58,322 WARN L244 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:58,322 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2024-11-09 07:09:58,400 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:58,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 589 places, 590 transitions, 1656 flow [2024-11-09 07:09:58,581 INFO L124 PetriNetUnfolderBase]: 77/991 cut-off events. [2024-11-09 07:09:58,581 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2024-11-09 07:09:58,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1169 conditions, 991 events. 77/991 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2735 event pairs, 0 based on Foata normal form. 0/865 useless extension candidates. Maximal degree in co-relation 1140. Up to 30 conditions per place. [2024-11-09 07:09:58,585 INFO L82 GeneralOperation]: Start removeDead. Operand has 589 places, 590 transitions, 1656 flow [2024-11-09 07:09:58,589 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 183 transitions, 607 flow [2024-11-09 07:09:58,590 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:58,593 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:58,593 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-09 07:09:58,594 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:58,594 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:09:58,594 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:58,594 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:58,594 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:58,594 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-09 07:09:58,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:58,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1137340413, now seen corresponding path program 1 times [2024-11-09 07:09:58,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:58,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705349368] [2024-11-09 07:09:58,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:58,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:58,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:58,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:58,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705349368] [2024-11-09 07:09:58,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705349368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:58,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:58,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:58,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551918397] [2024-11-09 07:09:58,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:58,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:58,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:58,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:58,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:58,697 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 479 out of 590 [2024-11-09 07:09:58,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 183 transitions, 607 flow. Second operand has 3 states, 3 states have (on average 480.3333333333333) internal successors, (1441), 3 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:58,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:58,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 479 of 590 [2024-11-09 07:09:58,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:58,821 INFO L124 PetriNetUnfolderBase]: 31/764 cut-off events. [2024-11-09 07:09:58,821 INFO L125 PetriNetUnfolderBase]: For 666/666 co-relation queries the response was YES. [2024-11-09 07:09:58,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1042 conditions, 764 events. 31/764 cut-off events. For 666/666 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2053 event pairs, 15 based on Foata normal form. 31/730 useless extension candidates. Maximal degree in co-relation 951. Up to 111 conditions per place. [2024-11-09 07:09:58,827 INFO L140 encePairwiseOnDemand]: 584/590 looper letters, 24 selfloop transitions, 2 changer transitions 1/179 dead transitions. [2024-11-09 07:09:58,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 179 transitions, 651 flow [2024-11-09 07:09:58,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:58,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:58,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1467 transitions. [2024-11-09 07:09:58,829 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8288135593220339 [2024-11-09 07:09:58,829 INFO L175 Difference]: Start difference. First operand has 210 places, 183 transitions, 607 flow. Second operand 3 states and 1467 transitions. [2024-11-09 07:09:58,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 179 transitions, 651 flow [2024-11-09 07:09:58,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 179 transitions, 494 flow, removed 78 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:58,833 INFO L231 Difference]: Finished difference. Result has 210 places, 178 transitions, 444 flow [2024-11-09 07:09:58,833 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=590, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=444, PETRI_PLACES=210, PETRI_TRANSITIONS=178} [2024-11-09 07:09:58,833 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, 0 predicate places. [2024-11-09 07:09:58,834 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 178 transitions, 444 flow [2024-11-09 07:09:58,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 480.3333333333333) internal successors, (1441), 3 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:58,834 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:58,834 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] [2024-11-09 07:09:58,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-09 07:09:58,834 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-09 07:09:58,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:58,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1873129722, now seen corresponding path program 1 times [2024-11-09 07:09:58,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:58,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610421450] [2024-11-09 07:09:58,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:58,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:58,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:58,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:58,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610421450] [2024-11-09 07:09:58,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610421450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:58,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:58,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:58,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037916665] [2024-11-09 07:09:58,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:58,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:58,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:58,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:58,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:58,917 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 590 [2024-11-09 07:09:58,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 178 transitions, 444 flow. Second operand has 3 states, 3 states have (on average 450.0) internal successors, (1350), 3 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:58,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:58,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 590 [2024-11-09 07:09:58,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:59,027 INFO L124 PetriNetUnfolderBase]: 16/685 cut-off events. [2024-11-09 07:09:59,027 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2024-11-09 07:09:59,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 856 conditions, 685 events. 16/685 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1549 event pairs, 0 based on Foata normal form. 15/669 useless extension candidates. Maximal degree in co-relation 818. Up to 80 conditions per place. [2024-11-09 07:09:59,032 INFO L140 encePairwiseOnDemand]: 584/590 looper letters, 22 selfloop transitions, 1 changer transitions 24/173 dead transitions. [2024-11-09 07:09:59,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 173 transitions, 484 flow [2024-11-09 07:09:59,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:59,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:59,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1377 transitions. [2024-11-09 07:09:59,034 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7779661016949152 [2024-11-09 07:09:59,034 INFO L175 Difference]: Start difference. First operand has 210 places, 178 transitions, 444 flow. Second operand 3 states and 1377 transitions. [2024-11-09 07:09:59,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 173 transitions, 484 flow [2024-11-09 07:09:59,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 173 transitions, 480 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:59,037 INFO L231 Difference]: Finished difference. Result has 204 places, 149 transitions, 382 flow [2024-11-09 07:09:59,038 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=590, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=382, PETRI_PLACES=204, PETRI_TRANSITIONS=149} [2024-11-09 07:09:59,038 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -6 predicate places. [2024-11-09 07:09:59,038 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 149 transitions, 382 flow [2024-11-09 07:09:59,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 450.0) internal successors, (1350), 3 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:59,039 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:59,039 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:59,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-09 07:09:59,039 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-09 07:09:59,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:59,040 INFO L85 PathProgramCache]: Analyzing trace with hash 193056495, now seen corresponding path program 1 times [2024-11-09 07:09:59,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:59,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011750372] [2024-11-09 07:09:59,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:59,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:59,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1386 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 1344 trivial. 0 not checked. [2024-11-09 07:09:59,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:59,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011750372] [2024-11-09 07:09:59,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011750372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:59,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:59,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:09:59,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360927464] [2024-11-09 07:09:59,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:59,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:09:59,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:59,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:09:59,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:09:59,238 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 491 out of 590 [2024-11-09 07:09:59,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 149 transitions, 382 flow. Second operand has 5 states, 5 states have (on average 495.8) internal successors, (2479), 5 states have internal predecessors, (2479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:59,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:59,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 491 of 590 [2024-11-09 07:09:59,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:59,318 INFO L124 PetriNetUnfolderBase]: 0/338 cut-off events. [2024-11-09 07:09:59,318 INFO L125 PetriNetUnfolderBase]: For 131/131 co-relation queries the response was YES. [2024-11-09 07:09:59,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 451 conditions, 338 events. 0/338 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 195 event pairs, 0 based on Foata normal form. 1/338 useless extension candidates. Maximal degree in co-relation 0. Up to 50 conditions per place. [2024-11-09 07:09:59,319 INFO L140 encePairwiseOnDemand]: 585/590 looper letters, 22 selfloop transitions, 2 changer transitions 3/151 dead transitions. [2024-11-09 07:09:59,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 151 transitions, 440 flow [2024-11-09 07:09:59,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:09:59,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:09:59,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2483 transitions. [2024-11-09 07:09:59,322 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8416949152542373 [2024-11-09 07:09:59,322 INFO L175 Difference]: Start difference. First operand has 204 places, 149 transitions, 382 flow. Second operand 5 states and 2483 transitions. [2024-11-09 07:09:59,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 151 transitions, 440 flow [2024-11-09 07:09:59,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 151 transitions, 439 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:59,325 INFO L231 Difference]: Finished difference. Result has 184 places, 148 transitions, 387 flow [2024-11-09 07:09:59,325 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=590, PETRI_DIFFERENCE_MINUEND_FLOW=381, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=387, PETRI_PLACES=184, PETRI_TRANSITIONS=148} [2024-11-09 07:09:59,325 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -26 predicate places. [2024-11-09 07:09:59,325 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 148 transitions, 387 flow [2024-11-09 07:09:59,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 495.8) internal successors, (2479), 5 states have internal predecessors, (2479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:59,326 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:59,326 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:59,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-09 07:09:59,326 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-09 07:09:59,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:59,327 INFO L85 PathProgramCache]: Analyzing trace with hash 614004328, now seen corresponding path program 1 times [2024-11-09 07:09:59,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:59,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214806503] [2024-11-09 07:09:59,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:59,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:59,392 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:59,442 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:59,442 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:59,443 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2024-11-09 07:09:59,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2024-11-09 07:09:59,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2024-11-09 07:09:59,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2024-11-09 07:09:59,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2024-11-09 07:09:59,443 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2024-11-09 07:09:59,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 22 remaining) [2024-11-09 07:09:59,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2024-11-09 07:09:59,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2024-11-09 07:09:59,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2024-11-09 07:09:59,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2024-11-09 07:09:59,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2024-11-09 07:09:59,444 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2024-11-09 07:09:59,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2024-11-09 07:09:59,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2024-11-09 07:09:59,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2024-11-09 07:09:59,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2024-11-09 07:09:59,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2024-11-09 07:09:59,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2024-11-09 07:09:59,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2024-11-09 07:09:59,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2024-11-09 07:09:59,446 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2024-11-09 07:09:59,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-09 07:09:59,446 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:59,446 WARN L244 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:59,447 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2024-11-09 07:09:59,521 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:59,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 626 places, 627 transitions, 1794 flow [2024-11-09 07:09:59,664 INFO L124 PetriNetUnfolderBase]: 82/1055 cut-off events. [2024-11-09 07:09:59,664 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2024-11-09 07:09:59,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1253 conditions, 1055 events. 82/1055 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3031 event pairs, 0 based on Foata normal form. 0/921 useless extension candidates. Maximal degree in co-relation 1222. Up to 32 conditions per place. [2024-11-09 07:09:59,673 INFO L82 GeneralOperation]: Start removeDead. Operand has 626 places, 627 transitions, 1794 flow [2024-11-09 07:09:59,675 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 219 places, 190 transitions, 653 flow [2024-11-09 07:09:59,676 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:59,676 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:59,676 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-09 07:09:59,677 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:59,677 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:09:59,678 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:59,678 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:59,678 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:59,678 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-09 07:09:59,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:59,678 INFO L85 PathProgramCache]: Analyzing trace with hash -340958461, now seen corresponding path program 1 times [2024-11-09 07:09:59,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:59,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347042650] [2024-11-09 07:09:59,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:59,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:59,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:59,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:59,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347042650] [2024-11-09 07:09:59,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347042650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:59,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:59,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:59,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541229576] [2024-11-09 07:09:59,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:59,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:59,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:59,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:59,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:59,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 509 out of 627 [2024-11-09 07:09:59,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 190 transitions, 653 flow. Second operand has 3 states, 3 states have (on average 510.3333333333333) internal successors, (1531), 3 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:59,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:59,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 509 of 627 [2024-11-09 07:09:59,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:59,931 INFO L124 PetriNetUnfolderBase]: 33/813 cut-off events. [2024-11-09 07:09:59,932 INFO L125 PetriNetUnfolderBase]: For 801/801 co-relation queries the response was YES. [2024-11-09 07:09:59,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1117 conditions, 813 events. 33/813 cut-off events. For 801/801 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2208 event pairs, 16 based on Foata normal form. 33/777 useless extension candidates. Maximal degree in co-relation 1024. Up to 118 conditions per place. [2024-11-09 07:09:59,938 INFO L140 encePairwiseOnDemand]: 621/627 looper letters, 25 selfloop transitions, 2 changer transitions 1/186 dead transitions. [2024-11-09 07:09:59,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 186 transitions, 699 flow [2024-11-09 07:09:59,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:59,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:59,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1558 transitions. [2024-11-09 07:09:59,940 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8282828282828283 [2024-11-09 07:09:59,940 INFO L175 Difference]: Start difference. First operand has 219 places, 190 transitions, 653 flow. Second operand 3 states and 1558 transitions. [2024-11-09 07:09:59,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 186 transitions, 699 flow [2024-11-09 07:09:59,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 186 transitions, 516 flow, removed 91 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:59,945 INFO L231 Difference]: Finished difference. Result has 219 places, 185 transitions, 464 flow [2024-11-09 07:09:59,945 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=627, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=464, PETRI_PLACES=219, PETRI_TRANSITIONS=185} [2024-11-09 07:09:59,946 INFO L277 CegarLoopForPetriNet]: 219 programPoint places, 0 predicate places. [2024-11-09 07:09:59,946 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 185 transitions, 464 flow [2024-11-09 07:09:59,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 510.3333333333333) internal successors, (1531), 3 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:59,946 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:59,947 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] [2024-11-09 07:09:59,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-09 07:09:59,947 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-09 07:09:59,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:59,947 INFO L85 PathProgramCache]: Analyzing trace with hash -891869498, now seen corresponding path program 1 times [2024-11-09 07:09:59,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:59,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720181249] [2024-11-09 07:09:59,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:59,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:59,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:59,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:59,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720181249] [2024-11-09 07:09:59,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720181249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:59,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:59,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:59,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2691086] [2024-11-09 07:09:59,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:59,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:59,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:59,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:59,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:00,018 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 627 [2024-11-09 07:10:00,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 185 transitions, 464 flow. Second operand has 3 states, 3 states have (on average 478.0) internal successors, (1434), 3 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:00,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:00,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 627 [2024-11-09 07:10:00,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:00,166 INFO L124 PetriNetUnfolderBase]: 17/729 cut-off events. [2024-11-09 07:10:00,166 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2024-11-09 07:10:00,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 911 conditions, 729 events. 17/729 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1657 event pairs, 0 based on Foata normal form. 16/712 useless extension candidates. Maximal degree in co-relation 872. Up to 85 conditions per place. [2024-11-09 07:10:00,169 INFO L140 encePairwiseOnDemand]: 621/627 looper letters, 23 selfloop transitions, 1 changer transitions 24/180 dead transitions. [2024-11-09 07:10:00,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 180 transitions, 506 flow [2024-11-09 07:10:00,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:00,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:00,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1462 transitions. [2024-11-09 07:10:00,171 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7772461456671983 [2024-11-09 07:10:00,171 INFO L175 Difference]: Start difference. First operand has 219 places, 185 transitions, 464 flow. Second operand 3 states and 1462 transitions. [2024-11-09 07:10:00,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 180 transitions, 506 flow [2024-11-09 07:10:00,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 180 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:00,174 INFO L231 Difference]: Finished difference. Result has 213 places, 156 transitions, 402 flow [2024-11-09 07:10:00,174 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=627, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=213, PETRI_TRANSITIONS=156} [2024-11-09 07:10:00,175 INFO L277 CegarLoopForPetriNet]: 219 programPoint places, -6 predicate places. [2024-11-09 07:10:00,175 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 156 transitions, 402 flow [2024-11-09 07:10:00,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 478.0) internal successors, (1434), 3 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:00,175 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:00,176 INFO L204 CegarLoopForPetriNet]: trace histogram [16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:00,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-09 07:10:00,176 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-09 07:10:00,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:00,176 INFO L85 PathProgramCache]: Analyzing trace with hash 587678559, now seen corresponding path program 1 times [2024-11-09 07:10:00,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:00,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756163387] [2024-11-09 07:10:00,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:00,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:00,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1590 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 1545 trivial. 0 not checked. [2024-11-09 07:10:00,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:00,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756163387] [2024-11-09 07:10:00,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756163387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:00,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:00,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:00,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260599673] [2024-11-09 07:10:00,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:00,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:00,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:00,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:00,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:00,359 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 522 out of 627 [2024-11-09 07:10:00,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 156 transitions, 402 flow. Second operand has 5 states, 5 states have (on average 527.0) internal successors, (2635), 5 states have internal predecessors, (2635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:00,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:00,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 522 of 627 [2024-11-09 07:10:00,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:00,441 INFO L124 PetriNetUnfolderBase]: 0/358 cut-off events. [2024-11-09 07:10:00,441 INFO L125 PetriNetUnfolderBase]: For 148/148 co-relation queries the response was YES. [2024-11-09 07:10:00,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 358 events. 0/358 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 207 event pairs, 0 based on Foata normal form. 1/358 useless extension candidates. Maximal degree in co-relation 0. Up to 53 conditions per place. [2024-11-09 07:10:00,442 INFO L140 encePairwiseOnDemand]: 622/627 looper letters, 23 selfloop transitions, 2 changer transitions 3/158 dead transitions. [2024-11-09 07:10:00,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 158 transitions, 462 flow [2024-11-09 07:10:00,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:00,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:00,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2639 transitions. [2024-11-09 07:10:00,446 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8417862838915471 [2024-11-09 07:10:00,446 INFO L175 Difference]: Start difference. First operand has 213 places, 156 transitions, 402 flow. Second operand 5 states and 2639 transitions. [2024-11-09 07:10:00,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 158 transitions, 462 flow [2024-11-09 07:10:00,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 158 transitions, 461 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:00,450 INFO L231 Difference]: Finished difference. Result has 193 places, 155 transitions, 407 flow [2024-11-09 07:10:00,450 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=627, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=407, PETRI_PLACES=193, PETRI_TRANSITIONS=155} [2024-11-09 07:10:00,451 INFO L277 CegarLoopForPetriNet]: 219 programPoint places, -26 predicate places. [2024-11-09 07:10:00,451 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 155 transitions, 407 flow [2024-11-09 07:10:00,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 527.0) internal successors, (2635), 5 states have internal predecessors, (2635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:00,452 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:00,452 INFO L204 CegarLoopForPetriNet]: trace histogram [16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:00,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-09 07:10:00,452 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-09 07:10:00,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:00,453 INFO L85 PathProgramCache]: Analyzing trace with hash 62735141, now seen corresponding path program 1 times [2024-11-09 07:10:00,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:00,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648289193] [2024-11-09 07:10:00,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:00,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:00,484 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:00,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:00,536 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:00,536 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-09 07:10:00,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-09 07:10:00,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-09 07:10:00,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-09 07:10:00,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-09 07:10:00,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-09 07:10:00,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 23 remaining) [2024-11-09 07:10:00,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-09 07:10:00,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-09 07:10:00,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-09 07:10:00,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-09 07:10:00,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-09 07:10:00,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-09 07:10:00,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-09 07:10:00,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-09 07:10:00,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-09 07:10:00,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-09 07:10:00,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-09 07:10:00,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-09 07:10:00,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-09 07:10:00,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-09 07:10:00,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-09 07:10:00,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-09 07:10:00,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-11-09 07:10:00,539 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:00,540 WARN L244 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:00,540 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2024-11-09 07:10:00,629 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:00,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 663 places, 664 transitions, 1936 flow [2024-11-09 07:10:00,834 INFO L124 PetriNetUnfolderBase]: 87/1119 cut-off events. [2024-11-09 07:10:00,834 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2024-11-09 07:10:00,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1338 conditions, 1119 events. 87/1119 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3225 event pairs, 0 based on Foata normal form. 0/977 useless extension candidates. Maximal degree in co-relation 1305. Up to 34 conditions per place. [2024-11-09 07:10:00,839 INFO L82 GeneralOperation]: Start removeDead. Operand has 663 places, 664 transitions, 1936 flow [2024-11-09 07:10:00,842 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 197 transitions, 701 flow [2024-11-09 07:10:00,843 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:00,843 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:00,844 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-09 07:10:00,845 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:00,845 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:00,846 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:00,846 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:00,846 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:00,846 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-09 07:10:00,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:00,846 INFO L85 PathProgramCache]: Analyzing trace with hash 406518531, now seen corresponding path program 1 times [2024-11-09 07:10:00,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:00,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932561822] [2024-11-09 07:10:00,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:00,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:00,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:00,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:00,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932561822] [2024-11-09 07:10:00,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932561822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:00,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:00,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:00,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723963228] [2024-11-09 07:10:00,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:00,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:00,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:00,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:00,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:00,966 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 539 out of 664 [2024-11-09 07:10:00,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 197 transitions, 701 flow. Second operand has 3 states, 3 states have (on average 540.3333333333334) internal successors, (1621), 3 states have internal predecessors, (1621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:00,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:00,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 539 of 664 [2024-11-09 07:10:00,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:01,167 INFO L124 PetriNetUnfolderBase]: 35/862 cut-off events. [2024-11-09 07:10:01,167 INFO L125 PetriNetUnfolderBase]: For 953/953 co-relation queries the response was YES. [2024-11-09 07:10:01,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1193 conditions, 862 events. 35/862 cut-off events. For 953/953 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2312 event pairs, 17 based on Foata normal form. 35/824 useless extension candidates. Maximal degree in co-relation 1098. Up to 125 conditions per place. [2024-11-09 07:10:01,173 INFO L140 encePairwiseOnDemand]: 658/664 looper letters, 26 selfloop transitions, 2 changer transitions 1/193 dead transitions. [2024-11-09 07:10:01,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 193 transitions, 749 flow [2024-11-09 07:10:01,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:01,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:01,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1649 transitions. [2024-11-09 07:10:01,176 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8278112449799196 [2024-11-09 07:10:01,176 INFO L175 Difference]: Start difference. First operand has 228 places, 197 transitions, 701 flow. Second operand 3 states and 1649 transitions. [2024-11-09 07:10:01,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 193 transitions, 749 flow [2024-11-09 07:10:01,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 193 transitions, 538 flow, removed 105 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:01,183 INFO L231 Difference]: Finished difference. Result has 228 places, 192 transitions, 484 flow [2024-11-09 07:10:01,184 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=664, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=484, PETRI_PLACES=228, PETRI_TRANSITIONS=192} [2024-11-09 07:10:01,184 INFO L277 CegarLoopForPetriNet]: 228 programPoint places, 0 predicate places. [2024-11-09 07:10:01,184 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 192 transitions, 484 flow [2024-11-09 07:10:01,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 540.3333333333334) internal successors, (1621), 3 states have internal predecessors, (1621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:01,185 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:01,185 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] [2024-11-09 07:10:01,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-11-09 07:10:01,185 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-09 07:10:01,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:01,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1209050310, now seen corresponding path program 1 times [2024-11-09 07:10:01,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:01,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680125307] [2024-11-09 07:10:01,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:01,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:01,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:01,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:01,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680125307] [2024-11-09 07:10:01,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680125307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:01,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:01,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:01,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619975667] [2024-11-09 07:10:01,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:01,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:01,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:01,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:01,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:01,285 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 505 out of 664 [2024-11-09 07:10:01,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 192 transitions, 484 flow. Second operand has 3 states, 3 states have (on average 506.0) internal successors, (1518), 3 states have internal predecessors, (1518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:01,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:01,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 505 of 664 [2024-11-09 07:10:01,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:01,456 INFO L124 PetriNetUnfolderBase]: 18/773 cut-off events. [2024-11-09 07:10:01,457 INFO L125 PetriNetUnfolderBase]: For 167/167 co-relation queries the response was YES. [2024-11-09 07:10:01,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 966 conditions, 773 events. 18/773 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1766 event pairs, 0 based on Foata normal form. 17/755 useless extension candidates. Maximal degree in co-relation 926. Up to 90 conditions per place. [2024-11-09 07:10:01,463 INFO L140 encePairwiseOnDemand]: 658/664 looper letters, 24 selfloop transitions, 1 changer transitions 24/187 dead transitions. [2024-11-09 07:10:01,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 187 transitions, 528 flow [2024-11-09 07:10:01,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:01,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:01,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1547 transitions. [2024-11-09 07:10:01,466 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7766064257028112 [2024-11-09 07:10:01,466 INFO L175 Difference]: Start difference. First operand has 228 places, 192 transitions, 484 flow. Second operand 3 states and 1547 transitions. [2024-11-09 07:10:01,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 187 transitions, 528 flow [2024-11-09 07:10:01,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 187 transitions, 524 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:01,471 INFO L231 Difference]: Finished difference. Result has 222 places, 163 transitions, 422 flow [2024-11-09 07:10:01,471 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=664, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=422, PETRI_PLACES=222, PETRI_TRANSITIONS=163} [2024-11-09 07:10:01,471 INFO L277 CegarLoopForPetriNet]: 228 programPoint places, -6 predicate places. [2024-11-09 07:10:01,471 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 163 transitions, 422 flow [2024-11-09 07:10:01,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 506.0) internal successors, (1518), 3 states have internal predecessors, (1518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:01,472 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:01,472 INFO L204 CegarLoopForPetriNet]: trace histogram [17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:01,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-11-09 07:10:01,473 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-09 07:10:01,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:01,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1675164677, now seen corresponding path program 1 times [2024-11-09 07:10:01,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:01,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831421214] [2024-11-09 07:10:01,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:01,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:01,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1808 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1760 trivial. 0 not checked. [2024-11-09 07:10:01,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:01,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831421214] [2024-11-09 07:10:01,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831421214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:01,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:01,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:01,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797863137] [2024-11-09 07:10:01,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:01,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:01,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:01,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:01,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:01,727 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 553 out of 664 [2024-11-09 07:10:01,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 163 transitions, 422 flow. Second operand has 5 states, 5 states have (on average 558.2) internal successors, (2791), 5 states have internal predecessors, (2791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:01,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:01,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 553 of 664 [2024-11-09 07:10:01,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:01,804 INFO L124 PetriNetUnfolderBase]: 0/378 cut-off events. [2024-11-09 07:10:01,804 INFO L125 PetriNetUnfolderBase]: For 166/166 co-relation queries the response was YES. [2024-11-09 07:10:01,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 505 conditions, 378 events. 0/378 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 220 event pairs, 0 based on Foata normal form. 1/378 useless extension candidates. Maximal degree in co-relation 0. Up to 56 conditions per place. [2024-11-09 07:10:01,805 INFO L140 encePairwiseOnDemand]: 659/664 looper letters, 24 selfloop transitions, 2 changer transitions 3/165 dead transitions. [2024-11-09 07:10:01,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 165 transitions, 484 flow [2024-11-09 07:10:01,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:01,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:01,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2795 transitions. [2024-11-09 07:10:01,809 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8418674698795181 [2024-11-09 07:10:01,809 INFO L175 Difference]: Start difference. First operand has 222 places, 163 transitions, 422 flow. Second operand 5 states and 2795 transitions. [2024-11-09 07:10:01,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 165 transitions, 484 flow [2024-11-09 07:10:01,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 165 transitions, 483 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:01,813 INFO L231 Difference]: Finished difference. Result has 202 places, 162 transitions, 427 flow [2024-11-09 07:10:01,813 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=664, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=427, PETRI_PLACES=202, PETRI_TRANSITIONS=162} [2024-11-09 07:10:01,813 INFO L277 CegarLoopForPetriNet]: 228 programPoint places, -26 predicate places. [2024-11-09 07:10:01,813 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 162 transitions, 427 flow [2024-11-09 07:10:01,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 558.2) internal successors, (2791), 5 states have internal predecessors, (2791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:01,814 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:01,814 INFO L204 CegarLoopForPetriNet]: trace histogram [17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:01,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-11-09 07:10:01,815 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-09 07:10:01,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:01,815 INFO L85 PathProgramCache]: Analyzing trace with hash 752610473, now seen corresponding path program 1 times [2024-11-09 07:10:01,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:01,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355565354] [2024-11-09 07:10:01,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:01,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:01,852 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:01,905 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:01,905 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:01,905 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2024-11-09 07:10:01,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2024-11-09 07:10:01,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2024-11-09 07:10:01,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2024-11-09 07:10:01,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2024-11-09 07:10:01,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2024-11-09 07:10:01,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 24 remaining) [2024-11-09 07:10:01,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2024-11-09 07:10:01,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2024-11-09 07:10:01,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2024-11-09 07:10:01,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2024-11-09 07:10:01,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2024-11-09 07:10:01,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2024-11-09 07:10:01,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2024-11-09 07:10:01,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2024-11-09 07:10:01,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2024-11-09 07:10:01,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2024-11-09 07:10:01,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2024-11-09 07:10:01,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2024-11-09 07:10:01,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2024-11-09 07:10:01,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2024-11-09 07:10:01,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2024-11-09 07:10:01,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2024-11-09 07:10:01,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2024-11-09 07:10:01,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-11-09 07:10:01,908 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:01,909 WARN L244 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:01,909 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2024-11-09 07:10:01,996 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:02,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 700 places, 701 transitions, 2082 flow [2024-11-09 07:10:02,213 INFO L124 PetriNetUnfolderBase]: 92/1183 cut-off events. [2024-11-09 07:10:02,213 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2024-11-09 07:10:02,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1424 conditions, 1183 events. 92/1183 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3263 event pairs, 0 based on Foata normal form. 0/1033 useless extension candidates. Maximal degree in co-relation 1389. Up to 36 conditions per place. [2024-11-09 07:10:02,220 INFO L82 GeneralOperation]: Start removeDead. Operand has 700 places, 701 transitions, 2082 flow [2024-11-09 07:10:02,223 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 237 places, 204 transitions, 751 flow [2024-11-09 07:10:02,224 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:02,224 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:02,224 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-09 07:10:02,225 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:02,225 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:02,226 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:02,226 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:02,226 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:02,226 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-09 07:10:02,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:02,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1105090563, now seen corresponding path program 1 times [2024-11-09 07:10:02,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:02,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789570328] [2024-11-09 07:10:02,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:02,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:02,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:02,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:02,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789570328] [2024-11-09 07:10:02,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789570328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:02,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:02,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:02,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301129203] [2024-11-09 07:10:02,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:02,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:02,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:02,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:02,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:02,328 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 569 out of 701 [2024-11-09 07:10:02,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 204 transitions, 751 flow. Second operand has 3 states, 3 states have (on average 570.3333333333334) internal successors, (1711), 3 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:02,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:02,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 569 of 701 [2024-11-09 07:10:02,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:02,492 INFO L124 PetriNetUnfolderBase]: 37/911 cut-off events. [2024-11-09 07:10:02,492 INFO L125 PetriNetUnfolderBase]: For 1123/1123 co-relation queries the response was YES. [2024-11-09 07:10:02,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1270 conditions, 911 events. 37/911 cut-off events. For 1123/1123 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2440 event pairs, 18 based on Foata normal form. 19/853 useless extension candidates. Maximal degree in co-relation 1173. Up to 132 conditions per place. [2024-11-09 07:10:02,502 INFO L140 encePairwiseOnDemand]: 695/701 looper letters, 27 selfloop transitions, 2 changer transitions 1/200 dead transitions. [2024-11-09 07:10:02,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 200 transitions, 801 flow [2024-11-09 07:10:02,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:02,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:02,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1740 transitions. [2024-11-09 07:10:02,505 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8273894436519258 [2024-11-09 07:10:02,505 INFO L175 Difference]: Start difference. First operand has 237 places, 204 transitions, 751 flow. Second operand 3 states and 1740 transitions. [2024-11-09 07:10:02,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 200 transitions, 801 flow [2024-11-09 07:10:02,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 200 transitions, 560 flow, removed 120 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:02,511 INFO L231 Difference]: Finished difference. Result has 237 places, 199 transitions, 504 flow [2024-11-09 07:10:02,511 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=701, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=504, PETRI_PLACES=237, PETRI_TRANSITIONS=199} [2024-11-09 07:10:02,511 INFO L277 CegarLoopForPetriNet]: 237 programPoint places, 0 predicate places. [2024-11-09 07:10:02,512 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 199 transitions, 504 flow [2024-11-09 07:10:02,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 570.3333333333334) internal successors, (1711), 3 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:02,512 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:02,512 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] [2024-11-09 07:10:02,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-11-09 07:10:02,512 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-09 07:10:02,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:02,513 INFO L85 PathProgramCache]: Analyzing trace with hash 134662406, now seen corresponding path program 1 times [2024-11-09 07:10:02,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:02,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467798368] [2024-11-09 07:10:02,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:02,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:02,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:02,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:02,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467798368] [2024-11-09 07:10:02,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467798368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:02,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:02,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:02,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822538706] [2024-11-09 07:10:02,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:02,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:02,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:02,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:02,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:02,610 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 533 out of 701 [2024-11-09 07:10:02,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 199 transitions, 504 flow. Second operand has 3 states, 3 states have (on average 534.0) internal successors, (1602), 3 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:02,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:02,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 533 of 701 [2024-11-09 07:10:02,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:02,757 INFO L124 PetriNetUnfolderBase]: 19/817 cut-off events. [2024-11-09 07:10:02,757 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2024-11-09 07:10:02,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1021 conditions, 817 events. 19/817 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1818 event pairs, 0 based on Foata normal form. 18/798 useless extension candidates. Maximal degree in co-relation 980. Up to 95 conditions per place. [2024-11-09 07:10:02,764 INFO L140 encePairwiseOnDemand]: 695/701 looper letters, 25 selfloop transitions, 1 changer transitions 24/194 dead transitions. [2024-11-09 07:10:02,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 194 transitions, 550 flow [2024-11-09 07:10:02,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:02,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:02,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1632 transitions. [2024-11-09 07:10:02,766 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.776034236804565 [2024-11-09 07:10:02,766 INFO L175 Difference]: Start difference. First operand has 237 places, 199 transitions, 504 flow. Second operand 3 states and 1632 transitions. [2024-11-09 07:10:02,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 194 transitions, 550 flow [2024-11-09 07:10:02,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 194 transitions, 546 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:02,770 INFO L231 Difference]: Finished difference. Result has 231 places, 170 transitions, 442 flow [2024-11-09 07:10:02,770 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=701, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=442, PETRI_PLACES=231, PETRI_TRANSITIONS=170} [2024-11-09 07:10:02,770 INFO L277 CegarLoopForPetriNet]: 237 programPoint places, -6 predicate places. [2024-11-09 07:10:02,770 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 170 transitions, 442 flow [2024-11-09 07:10:02,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 534.0) internal successors, (1602), 3 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:02,771 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:02,771 INFO L204 CegarLoopForPetriNet]: trace histogram [18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:02,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-11-09 07:10:02,771 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-09 07:10:02,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:02,772 INFO L85 PathProgramCache]: Analyzing trace with hash 110555683, now seen corresponding path program 1 times [2024-11-09 07:10:02,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:02,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943142055] [2024-11-09 07:10:02,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:02,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:02,881 INFO L134 CoverageAnalysis]: Checked inductivity of 2040 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 1989 trivial. 0 not checked. [2024-11-09 07:10:02,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:02,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943142055] [2024-11-09 07:10:02,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943142055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:02,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:02,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:02,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005984621] [2024-11-09 07:10:02,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:02,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:02,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:02,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:02,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:02,976 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 584 out of 701 [2024-11-09 07:10:02,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 170 transitions, 442 flow. Second operand has 5 states, 5 states have (on average 589.4) internal successors, (2947), 5 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:02,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:02,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 584 of 701 [2024-11-09 07:10:02,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:03,082 INFO L124 PetriNetUnfolderBase]: 0/398 cut-off events. [2024-11-09 07:10:03,082 INFO L125 PetriNetUnfolderBase]: For 185/185 co-relation queries the response was YES. [2024-11-09 07:10:03,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 532 conditions, 398 events. 0/398 cut-off events. For 185/185 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 231 event pairs, 0 based on Foata normal form. 1/398 useless extension candidates. Maximal degree in co-relation 0. Up to 59 conditions per place. [2024-11-09 07:10:03,083 INFO L140 encePairwiseOnDemand]: 696/701 looper letters, 25 selfloop transitions, 2 changer transitions 3/172 dead transitions. [2024-11-09 07:10:03,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 172 transitions, 506 flow [2024-11-09 07:10:03,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:03,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:03,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2951 transitions. [2024-11-09 07:10:03,088 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8419400855920114 [2024-11-09 07:10:03,088 INFO L175 Difference]: Start difference. First operand has 231 places, 170 transitions, 442 flow. Second operand 5 states and 2951 transitions. [2024-11-09 07:10:03,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 172 transitions, 506 flow [2024-11-09 07:10:03,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 172 transitions, 505 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:03,093 INFO L231 Difference]: Finished difference. Result has 211 places, 169 transitions, 447 flow [2024-11-09 07:10:03,093 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=701, PETRI_DIFFERENCE_MINUEND_FLOW=441, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=447, PETRI_PLACES=211, PETRI_TRANSITIONS=169} [2024-11-09 07:10:03,093 INFO L277 CegarLoopForPetriNet]: 237 programPoint places, -26 predicate places. [2024-11-09 07:10:03,093 INFO L471 AbstractCegarLoop]: Abstraction has has 211 places, 169 transitions, 447 flow [2024-11-09 07:10:03,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 589.4) internal successors, (2947), 5 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:03,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:03,094 INFO L204 CegarLoopForPetriNet]: trace histogram [18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:03,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-11-09 07:10:03,094 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-09 07:10:03,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:03,095 INFO L85 PathProgramCache]: Analyzing trace with hash -750165356, now seen corresponding path program 1 times [2024-11-09 07:10:03,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:03,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350697969] [2024-11-09 07:10:03,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:03,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:03,124 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:03,243 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:03,244 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:03,244 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2024-11-09 07:10:03,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2024-11-09 07:10:03,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2024-11-09 07:10:03,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2024-11-09 07:10:03,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2024-11-09 07:10:03,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2024-11-09 07:10:03,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 25 remaining) [2024-11-09 07:10:03,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2024-11-09 07:10:03,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2024-11-09 07:10:03,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2024-11-09 07:10:03,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2024-11-09 07:10:03,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2024-11-09 07:10:03,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2024-11-09 07:10:03,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2024-11-09 07:10:03,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2024-11-09 07:10:03,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2024-11-09 07:10:03,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2024-11-09 07:10:03,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2024-11-09 07:10:03,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2024-11-09 07:10:03,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2024-11-09 07:10:03,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2024-11-09 07:10:03,247 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2024-11-09 07:10:03,247 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2024-11-09 07:10:03,247 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2024-11-09 07:10:03,247 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2024-11-09 07:10:03,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-11-09 07:10:03,247 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:03,247 WARN L244 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:03,247 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2024-11-09 07:10:03,331 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:03,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 737 places, 738 transitions, 2232 flow [2024-11-09 07:10:03,488 INFO L124 PetriNetUnfolderBase]: 97/1247 cut-off events. [2024-11-09 07:10:03,488 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2024-11-09 07:10:03,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1511 conditions, 1247 events. 97/1247 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3590 event pairs, 0 based on Foata normal form. 0/1089 useless extension candidates. Maximal degree in co-relation 1474. Up to 38 conditions per place. [2024-11-09 07:10:03,497 INFO L82 GeneralOperation]: Start removeDead. Operand has 737 places, 738 transitions, 2232 flow [2024-11-09 07:10:03,499 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 246 places, 211 transitions, 803 flow [2024-11-09 07:10:03,500 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:03,500 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:03,500 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-09 07:10:03,501 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:03,502 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:03,502 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:03,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:03,502 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:03,502 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-09 07:10:03,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:03,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1754757635, now seen corresponding path program 1 times [2024-11-09 07:10:03,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:03,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056466266] [2024-11-09 07:10:03,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:03,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:03,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:03,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:03,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056466266] [2024-11-09 07:10:03,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056466266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:03,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:03,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:03,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810901408] [2024-11-09 07:10:03,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:03,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:03,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:03,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:03,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:03,627 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 599 out of 738 [2024-11-09 07:10:03,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 211 transitions, 803 flow. Second operand has 3 states, 3 states have (on average 600.3333333333334) internal successors, (1801), 3 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:03,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:03,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 599 of 738 [2024-11-09 07:10:03,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:03,803 INFO L124 PetriNetUnfolderBase]: 39/960 cut-off events. [2024-11-09 07:10:03,803 INFO L125 PetriNetUnfolderBase]: For 1312/1312 co-relation queries the response was YES. [2024-11-09 07:10:03,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1348 conditions, 960 events. 39/960 cut-off events. For 1312/1312 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2575 event pairs, 19 based on Foata normal form. 20/899 useless extension candidates. Maximal degree in co-relation 1249. Up to 139 conditions per place. [2024-11-09 07:10:03,813 INFO L140 encePairwiseOnDemand]: 732/738 looper letters, 28 selfloop transitions, 2 changer transitions 1/207 dead transitions. [2024-11-09 07:10:03,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 207 transitions, 855 flow [2024-11-09 07:10:03,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:03,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:03,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1831 transitions. [2024-11-09 07:10:03,817 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8270099367660343 [2024-11-09 07:10:03,817 INFO L175 Difference]: Start difference. First operand has 246 places, 211 transitions, 803 flow. Second operand 3 states and 1831 transitions. [2024-11-09 07:10:03,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 207 transitions, 855 flow [2024-11-09 07:10:03,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 207 transitions, 582 flow, removed 136 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:03,822 INFO L231 Difference]: Finished difference. Result has 246 places, 206 transitions, 524 flow [2024-11-09 07:10:03,823 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=524, PETRI_PLACES=246, PETRI_TRANSITIONS=206} [2024-11-09 07:10:03,823 INFO L277 CegarLoopForPetriNet]: 246 programPoint places, 0 predicate places. [2024-11-09 07:10:03,823 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 206 transitions, 524 flow [2024-11-09 07:10:03,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 600.3333333333334) internal successors, (1801), 3 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:03,824 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:03,824 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] [2024-11-09 07:10:03,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-11-09 07:10:03,824 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-09 07:10:03,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:03,825 INFO L85 PathProgramCache]: Analyzing trace with hash 179934086, now seen corresponding path program 1 times [2024-11-09 07:10:03,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:03,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979639134] [2024-11-09 07:10:03,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:03,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:03,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:03,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:03,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979639134] [2024-11-09 07:10:03,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979639134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:03,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:03,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:03,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320209985] [2024-11-09 07:10:03,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:03,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:03,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:03,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:03,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:03,910 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 561 out of 738 [2024-11-09 07:10:03,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 206 transitions, 524 flow. Second operand has 3 states, 3 states have (on average 562.0) internal successors, (1686), 3 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:03,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:03,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 561 of 738 [2024-11-09 07:10:03,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:04,026 INFO L124 PetriNetUnfolderBase]: 20/861 cut-off events. [2024-11-09 07:10:04,026 INFO L125 PetriNetUnfolderBase]: For 206/206 co-relation queries the response was YES. [2024-11-09 07:10:04,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1076 conditions, 861 events. 20/861 cut-off events. For 206/206 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1913 event pairs, 0 based on Foata normal form. 19/841 useless extension candidates. Maximal degree in co-relation 1034. Up to 100 conditions per place. [2024-11-09 07:10:04,033 INFO L140 encePairwiseOnDemand]: 732/738 looper letters, 26 selfloop transitions, 1 changer transitions 24/201 dead transitions. [2024-11-09 07:10:04,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 201 transitions, 572 flow [2024-11-09 07:10:04,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:04,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:04,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1717 transitions. [2024-11-09 07:10:04,036 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7755194218608853 [2024-11-09 07:10:04,036 INFO L175 Difference]: Start difference. First operand has 246 places, 206 transitions, 524 flow. Second operand 3 states and 1717 transitions. [2024-11-09 07:10:04,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 201 transitions, 572 flow [2024-11-09 07:10:04,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 201 transitions, 568 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:04,039 INFO L231 Difference]: Finished difference. Result has 240 places, 177 transitions, 462 flow [2024-11-09 07:10:04,040 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=462, PETRI_PLACES=240, PETRI_TRANSITIONS=177} [2024-11-09 07:10:04,040 INFO L277 CegarLoopForPetriNet]: 246 programPoint places, -6 predicate places. [2024-11-09 07:10:04,040 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 177 transitions, 462 flow [2024-11-09 07:10:04,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 562.0) internal successors, (1686), 3 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:04,040 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:04,041 INFO L204 CegarLoopForPetriNet]: trace histogram [19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:04,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-11-09 07:10:04,041 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-09 07:10:04,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:04,041 INFO L85 PathProgramCache]: Analyzing trace with hash 2101980983, now seen corresponding path program 1 times [2024-11-09 07:10:04,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:04,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199267936] [2024-11-09 07:10:04,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:04,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:04,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2286 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 2232 trivial. 0 not checked. [2024-11-09 07:10:04,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:04,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199267936] [2024-11-09 07:10:04,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199267936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:04,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:04,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:04,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097649814] [2024-11-09 07:10:04,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:04,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:04,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:04,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:04,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:04,269 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 615 out of 738 [2024-11-09 07:10:04,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 177 transitions, 462 flow. Second operand has 5 states, 5 states have (on average 620.6) internal successors, (3103), 5 states have internal predecessors, (3103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:04,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:04,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 615 of 738 [2024-11-09 07:10:04,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:04,369 INFO L124 PetriNetUnfolderBase]: 0/418 cut-off events. [2024-11-09 07:10:04,369 INFO L125 PetriNetUnfolderBase]: For 205/205 co-relation queries the response was YES. [2024-11-09 07:10:04,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 559 conditions, 418 events. 0/418 cut-off events. For 205/205 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 243 event pairs, 0 based on Foata normal form. 1/418 useless extension candidates. Maximal degree in co-relation 0. Up to 62 conditions per place. [2024-11-09 07:10:04,370 INFO L140 encePairwiseOnDemand]: 733/738 looper letters, 26 selfloop transitions, 2 changer transitions 3/179 dead transitions. [2024-11-09 07:10:04,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 179 transitions, 528 flow [2024-11-09 07:10:04,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:04,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:04,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3107 transitions. [2024-11-09 07:10:04,373 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8420054200542005 [2024-11-09 07:10:04,373 INFO L175 Difference]: Start difference. First operand has 240 places, 177 transitions, 462 flow. Second operand 5 states and 3107 transitions. [2024-11-09 07:10:04,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 179 transitions, 528 flow [2024-11-09 07:10:04,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 179 transitions, 527 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:04,376 INFO L231 Difference]: Finished difference. Result has 220 places, 176 transitions, 467 flow [2024-11-09 07:10:04,376 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=738, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=467, PETRI_PLACES=220, PETRI_TRANSITIONS=176} [2024-11-09 07:10:04,377 INFO L277 CegarLoopForPetriNet]: 246 programPoint places, -26 predicate places. [2024-11-09 07:10:04,377 INFO L471 AbstractCegarLoop]: Abstraction has has 220 places, 176 transitions, 467 flow [2024-11-09 07:10:04,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 620.6) internal successors, (3103), 5 states have internal predecessors, (3103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:04,377 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:04,378 INFO L204 CegarLoopForPetriNet]: trace histogram [19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:04,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-11-09 07:10:04,378 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-09 07:10:04,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:04,378 INFO L85 PathProgramCache]: Analyzing trace with hash 134411398, now seen corresponding path program 1 times [2024-11-09 07:10:04,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:04,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358109166] [2024-11-09 07:10:04,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:04,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:04,412 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:04,476 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:04,476 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:04,477 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-11-09 07:10:04,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-11-09 07:10:04,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2024-11-09 07:10:04,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-11-09 07:10:04,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-11-09 07:10:04,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-11-09 07:10:04,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 26 remaining) [2024-11-09 07:10:04,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2024-11-09 07:10:04,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-11-09 07:10:04,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-11-09 07:10:04,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2024-11-09 07:10:04,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-11-09 07:10:04,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-11-09 07:10:04,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-11-09 07:10:04,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-11-09 07:10:04,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-11-09 07:10:04,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-11-09 07:10:04,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-11-09 07:10:04,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-11-09 07:10:04,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-11-09 07:10:04,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-11-09 07:10:04,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-11-09 07:10:04,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-11-09 07:10:04,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-11-09 07:10:04,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-11-09 07:10:04,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-11-09 07:10:04,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2024-11-09 07:10:04,481 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:04,481 WARN L244 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:04,481 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2024-11-09 07:10:04,580 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:04,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 774 places, 775 transitions, 2386 flow [2024-11-09 07:10:04,785 INFO L124 PetriNetUnfolderBase]: 102/1311 cut-off events. [2024-11-09 07:10:04,785 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2024-11-09 07:10:04,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1599 conditions, 1311 events. 102/1311 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3781 event pairs, 0 based on Foata normal form. 0/1145 useless extension candidates. Maximal degree in co-relation 1560. Up to 40 conditions per place. [2024-11-09 07:10:04,793 INFO L82 GeneralOperation]: Start removeDead. Operand has 774 places, 775 transitions, 2386 flow [2024-11-09 07:10:04,796 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 255 places, 218 transitions, 857 flow [2024-11-09 07:10:04,797 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:04,798 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:04,798 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-11-09 07:10:04,799 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:04,799 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:04,799 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:04,799 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:04,799 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:04,800 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-09 07:10:04,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:04,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1939447549, now seen corresponding path program 1 times [2024-11-09 07:10:04,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:04,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212533202] [2024-11-09 07:10:04,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:04,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:04,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:04,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:04,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:04,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212533202] [2024-11-09 07:10:04,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212533202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:04,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:04,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:04,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236509370] [2024-11-09 07:10:04,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:04,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:04,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:04,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:04,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:04,923 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 629 out of 775 [2024-11-09 07:10:04,924 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 218 transitions, 857 flow. Second operand has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:04,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:04,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 629 of 775 [2024-11-09 07:10:04,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:05,117 INFO L124 PetriNetUnfolderBase]: 41/1009 cut-off events. [2024-11-09 07:10:05,117 INFO L125 PetriNetUnfolderBase]: For 1521/1521 co-relation queries the response was YES. [2024-11-09 07:10:05,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1427 conditions, 1009 events. 41/1009 cut-off events. For 1521/1521 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2726 event pairs, 20 based on Foata normal form. 21/945 useless extension candidates. Maximal degree in co-relation 1326. Up to 146 conditions per place. [2024-11-09 07:10:05,129 INFO L140 encePairwiseOnDemand]: 769/775 looper letters, 29 selfloop transitions, 2 changer transitions 1/214 dead transitions. [2024-11-09 07:10:05,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 214 transitions, 911 flow [2024-11-09 07:10:05,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:05,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:05,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1922 transitions. [2024-11-09 07:10:05,132 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8266666666666667 [2024-11-09 07:10:05,132 INFO L175 Difference]: Start difference. First operand has 255 places, 218 transitions, 857 flow. Second operand 3 states and 1922 transitions. [2024-11-09 07:10:05,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 214 transitions, 911 flow [2024-11-09 07:10:05,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 214 transitions, 604 flow, removed 153 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:05,139 INFO L231 Difference]: Finished difference. Result has 255 places, 213 transitions, 544 flow [2024-11-09 07:10:05,139 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=775, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=544, PETRI_PLACES=255, PETRI_TRANSITIONS=213} [2024-11-09 07:10:05,140 INFO L277 CegarLoopForPetriNet]: 255 programPoint places, 0 predicate places. [2024-11-09 07:10:05,140 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 213 transitions, 544 flow [2024-11-09 07:10:05,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:05,141 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:05,141 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:05,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2024-11-09 07:10:05,141 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-09 07:10:05,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:05,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1344865350, now seen corresponding path program 1 times [2024-11-09 07:10:05,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:05,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569460596] [2024-11-09 07:10:05,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:05,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:05,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:05,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:05,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569460596] [2024-11-09 07:10:05,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569460596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:05,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:05,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:05,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818155378] [2024-11-09 07:10:05,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:05,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:05,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:05,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:05,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:05,236 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 589 out of 775 [2024-11-09 07:10:05,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 213 transitions, 544 flow. Second operand has 3 states, 3 states have (on average 590.0) internal successors, (1770), 3 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:05,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:05,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 589 of 775 [2024-11-09 07:10:05,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:05,502 INFO L124 PetriNetUnfolderBase]: 21/905 cut-off events. [2024-11-09 07:10:05,502 INFO L125 PetriNetUnfolderBase]: For 227/227 co-relation queries the response was YES. [2024-11-09 07:10:05,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1131 conditions, 905 events. 21/905 cut-off events. For 227/227 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2028 event pairs, 0 based on Foata normal form. 20/884 useless extension candidates. Maximal degree in co-relation 1088. Up to 105 conditions per place. [2024-11-09 07:10:05,511 INFO L140 encePairwiseOnDemand]: 769/775 looper letters, 27 selfloop transitions, 1 changer transitions 24/208 dead transitions. [2024-11-09 07:10:05,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 208 transitions, 594 flow [2024-11-09 07:10:05,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:05,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:05,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1802 transitions. [2024-11-09 07:10:05,515 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7750537634408602 [2024-11-09 07:10:05,515 INFO L175 Difference]: Start difference. First operand has 255 places, 213 transitions, 544 flow. Second operand 3 states and 1802 transitions. [2024-11-09 07:10:05,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 208 transitions, 594 flow [2024-11-09 07:10:05,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 208 transitions, 590 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:05,519 INFO L231 Difference]: Finished difference. Result has 249 places, 184 transitions, 482 flow [2024-11-09 07:10:05,519 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=775, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=482, PETRI_PLACES=249, PETRI_TRANSITIONS=184} [2024-11-09 07:10:05,520 INFO L277 CegarLoopForPetriNet]: 255 programPoint places, -6 predicate places. [2024-11-09 07:10:05,520 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 184 transitions, 482 flow [2024-11-09 07:10:05,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 590.0) internal successors, (1770), 3 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:05,520 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:05,521 INFO L204 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:05,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2024-11-09 07:10:05,521 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-09 07:10:05,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:05,522 INFO L85 PathProgramCache]: Analyzing trace with hash -281895785, now seen corresponding path program 1 times [2024-11-09 07:10:05,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:05,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299804127] [2024-11-09 07:10:05,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:05,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:05,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2546 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 2489 trivial. 0 not checked. [2024-11-09 07:10:05,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:05,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299804127] [2024-11-09 07:10:05,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299804127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:05,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:05,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:05,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076631738] [2024-11-09 07:10:05,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:05,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:05,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:05,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:05,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:05,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 646 out of 775 [2024-11-09 07:10:05,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 184 transitions, 482 flow. Second operand has 5 states, 5 states have (on average 651.8) internal successors, (3259), 5 states have internal predecessors, (3259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:05,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:05,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 646 of 775 [2024-11-09 07:10:05,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:05,938 INFO L124 PetriNetUnfolderBase]: 0/438 cut-off events. [2024-11-09 07:10:05,938 INFO L125 PetriNetUnfolderBase]: For 226/226 co-relation queries the response was YES. [2024-11-09 07:10:05,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 586 conditions, 438 events. 0/438 cut-off events. For 226/226 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 255 event pairs, 0 based on Foata normal form. 1/438 useless extension candidates. Maximal degree in co-relation 0. Up to 65 conditions per place. [2024-11-09 07:10:05,940 INFO L140 encePairwiseOnDemand]: 770/775 looper letters, 27 selfloop transitions, 2 changer transitions 3/186 dead transitions. [2024-11-09 07:10:05,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 186 transitions, 550 flow [2024-11-09 07:10:05,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:05,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:05,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3263 transitions. [2024-11-09 07:10:05,944 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8420645161290322 [2024-11-09 07:10:05,944 INFO L175 Difference]: Start difference. First operand has 249 places, 184 transitions, 482 flow. Second operand 5 states and 3263 transitions. [2024-11-09 07:10:05,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 186 transitions, 550 flow [2024-11-09 07:10:05,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 186 transitions, 549 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:05,948 INFO L231 Difference]: Finished difference. Result has 229 places, 183 transitions, 487 flow [2024-11-09 07:10:05,948 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=775, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=487, PETRI_PLACES=229, PETRI_TRANSITIONS=183} [2024-11-09 07:10:05,949 INFO L277 CegarLoopForPetriNet]: 255 programPoint places, -26 predicate places. [2024-11-09 07:10:05,949 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 183 transitions, 487 flow [2024-11-09 07:10:05,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 651.8) internal successors, (3259), 5 states have internal predecessors, (3259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:05,950 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:05,950 INFO L204 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:05,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2024-11-09 07:10:05,950 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-09 07:10:05,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:05,951 INFO L85 PathProgramCache]: Analyzing trace with hash -135605729, now seen corresponding path program 1 times [2024-11-09 07:10:05,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:05,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826622714] [2024-11-09 07:10:05,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:05,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:05,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:06,000 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:06,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:06,071 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:06,071 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:06,071 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 27 remaining) [2024-11-09 07:10:06,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2024-11-09 07:10:06,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2024-11-09 07:10:06,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2024-11-09 07:10:06,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2024-11-09 07:10:06,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2024-11-09 07:10:06,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 27 remaining) [2024-11-09 07:10:06,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2024-11-09 07:10:06,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2024-11-09 07:10:06,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2024-11-09 07:10:06,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2024-11-09 07:10:06,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2024-11-09 07:10:06,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2024-11-09 07:10:06,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2024-11-09 07:10:06,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2024-11-09 07:10:06,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2024-11-09 07:10:06,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 27 remaining) [2024-11-09 07:10:06,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 27 remaining) [2024-11-09 07:10:06,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2024-11-09 07:10:06,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2024-11-09 07:10:06,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2024-11-09 07:10:06,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2024-11-09 07:10:06,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2024-11-09 07:10:06,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2024-11-09 07:10:06,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2024-11-09 07:10:06,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2024-11-09 07:10:06,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2024-11-09 07:10:06,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2024-11-09 07:10:06,076 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:06,076 WARN L244 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:06,076 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2024-11-09 07:10:06,199 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:06,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 811 places, 812 transitions, 2544 flow [2024-11-09 07:10:06,455 INFO L124 PetriNetUnfolderBase]: 107/1375 cut-off events. [2024-11-09 07:10:06,456 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2024-11-09 07:10:06,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1688 conditions, 1375 events. 107/1375 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3911 event pairs, 0 based on Foata normal form. 0/1201 useless extension candidates. Maximal degree in co-relation 1647. Up to 42 conditions per place. [2024-11-09 07:10:06,466 INFO L82 GeneralOperation]: Start removeDead. Operand has 811 places, 812 transitions, 2544 flow [2024-11-09 07:10:06,470 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 264 places, 225 transitions, 913 flow [2024-11-09 07:10:06,471 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:06,471 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:06,472 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-09 07:10:06,474 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:06,474 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:06,474 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:06,474 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:06,474 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:06,474 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-09 07:10:06,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:06,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1387590397, now seen corresponding path program 1 times [2024-11-09 07:10:06,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:06,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508260707] [2024-11-09 07:10:06,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:06,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:06,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:06,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:06,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508260707] [2024-11-09 07:10:06,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508260707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:06,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:06,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:06,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858716784] [2024-11-09 07:10:06,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:06,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:06,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:06,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:06,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:06,625 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 659 out of 812 [2024-11-09 07:10:06,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 225 transitions, 913 flow. Second operand has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:06,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:06,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 659 of 812 [2024-11-09 07:10:06,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:06,919 INFO L124 PetriNetUnfolderBase]: 43/1058 cut-off events. [2024-11-09 07:10:06,919 INFO L125 PetriNetUnfolderBase]: For 1751/1751 co-relation queries the response was YES. [2024-11-09 07:10:06,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1507 conditions, 1058 events. 43/1058 cut-off events. For 1751/1751 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2819 event pairs, 21 based on Foata normal form. 43/1012 useless extension candidates. Maximal degree in co-relation 1404. Up to 153 conditions per place. [2024-11-09 07:10:06,924 INFO L140 encePairwiseOnDemand]: 806/812 looper letters, 30 selfloop transitions, 2 changer transitions 1/221 dead transitions. [2024-11-09 07:10:06,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 221 transitions, 969 flow [2024-11-09 07:10:06,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:06,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:06,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2013 transitions. [2024-11-09 07:10:06,927 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8263546798029556 [2024-11-09 07:10:06,927 INFO L175 Difference]: Start difference. First operand has 264 places, 225 transitions, 913 flow. Second operand 3 states and 2013 transitions. [2024-11-09 07:10:06,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 221 transitions, 969 flow [2024-11-09 07:10:06,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 221 transitions, 626 flow, removed 171 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:06,934 INFO L231 Difference]: Finished difference. Result has 264 places, 220 transitions, 564 flow [2024-11-09 07:10:06,934 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=812, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=564, PETRI_PLACES=264, PETRI_TRANSITIONS=220} [2024-11-09 07:10:06,934 INFO L277 CegarLoopForPetriNet]: 264 programPoint places, 0 predicate places. [2024-11-09 07:10:06,935 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 220 transitions, 564 flow [2024-11-09 07:10:06,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:06,935 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:06,935 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] [2024-11-09 07:10:06,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2024-11-09 07:10:06,936 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-09 07:10:06,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:06,936 INFO L85 PathProgramCache]: Analyzing trace with hash -665511098, now seen corresponding path program 1 times [2024-11-09 07:10:06,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:06,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925765496] [2024-11-09 07:10:06,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:06,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:06,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:06,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:06,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:06,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925765496] [2024-11-09 07:10:06,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925765496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:06,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:06,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:06,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650191215] [2024-11-09 07:10:06,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:06,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:06,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:06,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:06,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:07,026 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 617 out of 812 [2024-11-09 07:10:07,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 220 transitions, 564 flow. Second operand has 3 states, 3 states have (on average 618.0) internal successors, (1854), 3 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:07,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:07,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 617 of 812 [2024-11-09 07:10:07,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:07,194 INFO L124 PetriNetUnfolderBase]: 22/949 cut-off events. [2024-11-09 07:10:07,194 INFO L125 PetriNetUnfolderBase]: For 249/249 co-relation queries the response was YES. [2024-11-09 07:10:07,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1186 conditions, 949 events. 22/949 cut-off events. For 249/249 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2076 event pairs, 0 based on Foata normal form. 21/927 useless extension candidates. Maximal degree in co-relation 1142. Up to 110 conditions per place. [2024-11-09 07:10:07,200 INFO L140 encePairwiseOnDemand]: 806/812 looper letters, 28 selfloop transitions, 1 changer transitions 24/215 dead transitions. [2024-11-09 07:10:07,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 215 transitions, 616 flow [2024-11-09 07:10:07,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:07,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:07,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1887 transitions. [2024-11-09 07:10:07,202 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7746305418719212 [2024-11-09 07:10:07,202 INFO L175 Difference]: Start difference. First operand has 264 places, 220 transitions, 564 flow. Second operand 3 states and 1887 transitions. [2024-11-09 07:10:07,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 215 transitions, 616 flow [2024-11-09 07:10:07,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 215 transitions, 612 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:07,205 INFO L231 Difference]: Finished difference. Result has 258 places, 191 transitions, 502 flow [2024-11-09 07:10:07,205 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=812, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=502, PETRI_PLACES=258, PETRI_TRANSITIONS=191} [2024-11-09 07:10:07,206 INFO L277 CegarLoopForPetriNet]: 264 programPoint places, -6 predicate places. [2024-11-09 07:10:07,206 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 191 transitions, 502 flow [2024-11-09 07:10:07,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 618.0) internal successors, (1854), 3 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:07,206 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:07,206 INFO L204 CegarLoopForPetriNet]: trace histogram [21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:07,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2024-11-09 07:10:07,206 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-09 07:10:07,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:07,207 INFO L85 PathProgramCache]: Analyzing trace with hash -930489437, now seen corresponding path program 1 times [2024-11-09 07:10:07,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:07,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638722938] [2024-11-09 07:10:07,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:07,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:07,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2820 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 2760 trivial. 0 not checked. [2024-11-09 07:10:07,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:07,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638722938] [2024-11-09 07:10:07,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638722938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:07,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:07,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:07,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677055699] [2024-11-09 07:10:07,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:07,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:07,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:07,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:07,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:07,418 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 677 out of 812 [2024-11-09 07:10:07,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 191 transitions, 502 flow. Second operand has 5 states, 5 states have (on average 683.0) internal successors, (3415), 5 states have internal predecessors, (3415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:07,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:07,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 677 of 812 [2024-11-09 07:10:07,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:07,514 INFO L124 PetriNetUnfolderBase]: 0/458 cut-off events. [2024-11-09 07:10:07,514 INFO L125 PetriNetUnfolderBase]: For 248/248 co-relation queries the response was YES. [2024-11-09 07:10:07,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 613 conditions, 458 events. 0/458 cut-off events. For 248/248 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 268 event pairs, 0 based on Foata normal form. 1/458 useless extension candidates. Maximal degree in co-relation 0. Up to 68 conditions per place. [2024-11-09 07:10:07,515 INFO L140 encePairwiseOnDemand]: 807/812 looper letters, 28 selfloop transitions, 2 changer transitions 3/193 dead transitions. [2024-11-09 07:10:07,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 193 transitions, 572 flow [2024-11-09 07:10:07,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:07,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:07,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3419 transitions. [2024-11-09 07:10:07,517 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8421182266009852 [2024-11-09 07:10:07,517 INFO L175 Difference]: Start difference. First operand has 258 places, 191 transitions, 502 flow. Second operand 5 states and 3419 transitions. [2024-11-09 07:10:07,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 193 transitions, 572 flow [2024-11-09 07:10:07,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 193 transitions, 571 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:07,521 INFO L231 Difference]: Finished difference. Result has 238 places, 190 transitions, 507 flow [2024-11-09 07:10:07,521 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=812, PETRI_DIFFERENCE_MINUEND_FLOW=501, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=507, PETRI_PLACES=238, PETRI_TRANSITIONS=190} [2024-11-09 07:10:07,522 INFO L277 CegarLoopForPetriNet]: 264 programPoint places, -26 predicate places. [2024-11-09 07:10:07,522 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 190 transitions, 507 flow [2024-11-09 07:10:07,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 683.0) internal successors, (3415), 5 states have internal predecessors, (3415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:07,523 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:07,523 INFO L204 CegarLoopForPetriNet]: trace histogram [21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:07,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2024-11-09 07:10:07,523 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-09 07:10:07,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:07,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1065618175, now seen corresponding path program 1 times [2024-11-09 07:10:07,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:07,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640629708] [2024-11-09 07:10:07,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:07,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:07,559 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:07,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:07,622 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:07,622 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:07,623 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 28 remaining) [2024-11-09 07:10:07,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2024-11-09 07:10:07,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 28 remaining) [2024-11-09 07:10:07,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (24 of 28 remaining) [2024-11-09 07:10:07,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (23 of 28 remaining) [2024-11-09 07:10:07,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (22 of 28 remaining) [2024-11-09 07:10:07,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 28 remaining) [2024-11-09 07:10:07,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 28 remaining) [2024-11-09 07:10:07,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2024-11-09 07:10:07,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 28 remaining) [2024-11-09 07:10:07,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2024-11-09 07:10:07,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 28 remaining) [2024-11-09 07:10:07,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2024-11-09 07:10:07,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 28 remaining) [2024-11-09 07:10:07,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 28 remaining) [2024-11-09 07:10:07,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 28 remaining) [2024-11-09 07:10:07,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 28 remaining) [2024-11-09 07:10:07,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 28 remaining) [2024-11-09 07:10:07,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 28 remaining) [2024-11-09 07:10:07,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 28 remaining) [2024-11-09 07:10:07,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 28 remaining) [2024-11-09 07:10:07,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2024-11-09 07:10:07,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2024-11-09 07:10:07,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2024-11-09 07:10:07,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2024-11-09 07:10:07,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 28 remaining) [2024-11-09 07:10:07,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2024-11-09 07:10:07,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2024-11-09 07:10:07,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2024-11-09 07:10:07,627 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:07,628 WARN L244 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:07,628 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2024-11-09 07:10:07,724 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:07,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 848 places, 849 transitions, 2706 flow [2024-11-09 07:10:07,897 INFO L124 PetriNetUnfolderBase]: 112/1439 cut-off events. [2024-11-09 07:10:07,897 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2024-11-09 07:10:07,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1778 conditions, 1439 events. 112/1439 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4196 event pairs, 0 based on Foata normal form. 0/1257 useless extension candidates. Maximal degree in co-relation 1735. Up to 44 conditions per place. [2024-11-09 07:10:07,909 INFO L82 GeneralOperation]: Start removeDead. Operand has 848 places, 849 transitions, 2706 flow [2024-11-09 07:10:07,912 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 273 places, 232 transitions, 971 flow [2024-11-09 07:10:07,913 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:07,913 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:07,913 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-09 07:10:07,915 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:07,915 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:07,915 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:07,915 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:07,915 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:07,915 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-09 07:10:07,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:07,916 INFO L85 PathProgramCache]: Analyzing trace with hash -884638205, now seen corresponding path program 1 times [2024-11-09 07:10:07,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:07,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957640984] [2024-11-09 07:10:07,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:07,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:07,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:07,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:07,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957640984] [2024-11-09 07:10:07,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957640984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:07,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:07,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:07,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746711744] [2024-11-09 07:10:07,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:07,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:07,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:07,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:07,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:08,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 689 out of 849 [2024-11-09 07:10:08,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 232 transitions, 971 flow. Second operand has 3 states, 3 states have (on average 690.3333333333334) internal successors, (2071), 3 states have internal predecessors, (2071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:08,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:08,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 689 of 849 [2024-11-09 07:10:08,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:08,226 INFO L124 PetriNetUnfolderBase]: 45/1107 cut-off events. [2024-11-09 07:10:08,227 INFO L125 PetriNetUnfolderBase]: For 2003/2003 co-relation queries the response was YES. [2024-11-09 07:10:08,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1588 conditions, 1107 events. 45/1107 cut-off events. For 2003/2003 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3054 event pairs, 22 based on Foata normal form. 45/1059 useless extension candidates. Maximal degree in co-relation 1483. Up to 160 conditions per place. [2024-11-09 07:10:08,235 INFO L140 encePairwiseOnDemand]: 843/849 looper letters, 31 selfloop transitions, 2 changer transitions 1/228 dead transitions. [2024-11-09 07:10:08,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 228 transitions, 1029 flow [2024-11-09 07:10:08,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:08,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:08,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2104 transitions. [2024-11-09 07:10:08,237 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8260698861405575 [2024-11-09 07:10:08,238 INFO L175 Difference]: Start difference. First operand has 273 places, 232 transitions, 971 flow. Second operand 3 states and 2104 transitions. [2024-11-09 07:10:08,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 228 transitions, 1029 flow [2024-11-09 07:10:08,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 228 transitions, 648 flow, removed 190 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:08,245 INFO L231 Difference]: Finished difference. Result has 273 places, 227 transitions, 584 flow [2024-11-09 07:10:08,245 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=849, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=584, PETRI_PLACES=273, PETRI_TRANSITIONS=227} [2024-11-09 07:10:08,246 INFO L277 CegarLoopForPetriNet]: 273 programPoint places, 0 predicate places. [2024-11-09 07:10:08,246 INFO L471 AbstractCegarLoop]: Abstraction has has 273 places, 227 transitions, 584 flow [2024-11-09 07:10:08,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 690.3333333333334) internal successors, (2071), 3 states have internal predecessors, (2071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:08,246 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:08,247 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] [2024-11-09 07:10:08,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2024-11-09 07:10:08,247 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-09 07:10:08,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:08,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1556227962, now seen corresponding path program 1 times [2024-11-09 07:10:08,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:08,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197747116] [2024-11-09 07:10:08,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:08,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:08,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:08,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:08,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197747116] [2024-11-09 07:10:08,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197747116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:08,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:08,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:08,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271792083] [2024-11-09 07:10:08,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:08,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:08,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:08,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:08,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:08,353 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 645 out of 849 [2024-11-09 07:10:08,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 227 transitions, 584 flow. Second operand has 3 states, 3 states have (on average 646.0) internal successors, (1938), 3 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:08,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:08,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 645 of 849 [2024-11-09 07:10:08,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:08,581 INFO L124 PetriNetUnfolderBase]: 23/993 cut-off events. [2024-11-09 07:10:08,581 INFO L125 PetriNetUnfolderBase]: For 272/272 co-relation queries the response was YES. [2024-11-09 07:10:08,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1241 conditions, 993 events. 23/993 cut-off events. For 272/272 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2305 event pairs, 0 based on Foata normal form. 22/970 useless extension candidates. Maximal degree in co-relation 1196. Up to 115 conditions per place. [2024-11-09 07:10:08,587 INFO L140 encePairwiseOnDemand]: 843/849 looper letters, 29 selfloop transitions, 1 changer transitions 24/222 dead transitions. [2024-11-09 07:10:08,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 222 transitions, 638 flow [2024-11-09 07:10:08,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:08,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:08,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1972 transitions. [2024-11-09 07:10:08,589 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7742442088731841 [2024-11-09 07:10:08,589 INFO L175 Difference]: Start difference. First operand has 273 places, 227 transitions, 584 flow. Second operand 3 states and 1972 transitions. [2024-11-09 07:10:08,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 222 transitions, 638 flow [2024-11-09 07:10:08,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 222 transitions, 634 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:08,592 INFO L231 Difference]: Finished difference. Result has 267 places, 198 transitions, 522 flow [2024-11-09 07:10:08,592 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=849, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=522, PETRI_PLACES=267, PETRI_TRANSITIONS=198} [2024-11-09 07:10:08,592 INFO L277 CegarLoopForPetriNet]: 273 programPoint places, -6 predicate places. [2024-11-09 07:10:08,592 INFO L471 AbstractCegarLoop]: Abstraction has has 267 places, 198 transitions, 522 flow [2024-11-09 07:10:08,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 646.0) internal successors, (1938), 3 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:08,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:08,593 INFO L204 CegarLoopForPetriNet]: trace histogram [22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:08,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2024-11-09 07:10:08,593 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-09 07:10:08,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:08,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1668264517, now seen corresponding path program 1 times [2024-11-09 07:10:08,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:08,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729951793] [2024-11-09 07:10:08,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:08,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:08,718 INFO L134 CoverageAnalysis]: Checked inductivity of 3108 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 3045 trivial. 0 not checked. [2024-11-09 07:10:08,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:08,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729951793] [2024-11-09 07:10:08,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729951793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:08,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:08,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:08,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022714243] [2024-11-09 07:10:08,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:08,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:08,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:08,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:08,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:08,812 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 708 out of 849 [2024-11-09 07:10:08,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 198 transitions, 522 flow. Second operand has 5 states, 5 states have (on average 714.2) internal successors, (3571), 5 states have internal predecessors, (3571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:08,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:08,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 708 of 849 [2024-11-09 07:10:08,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:08,930 INFO L124 PetriNetUnfolderBase]: 0/478 cut-off events. [2024-11-09 07:10:08,930 INFO L125 PetriNetUnfolderBase]: For 271/271 co-relation queries the response was YES. [2024-11-09 07:10:08,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 478 events. 0/478 cut-off events. For 271/271 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 279 event pairs, 0 based on Foata normal form. 1/478 useless extension candidates. Maximal degree in co-relation 0. Up to 71 conditions per place. [2024-11-09 07:10:08,931 INFO L140 encePairwiseOnDemand]: 844/849 looper letters, 29 selfloop transitions, 2 changer transitions 3/200 dead transitions. [2024-11-09 07:10:08,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 200 transitions, 594 flow [2024-11-09 07:10:08,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:08,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:08,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3575 transitions. [2024-11-09 07:10:08,934 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8421672555948174 [2024-11-09 07:10:08,934 INFO L175 Difference]: Start difference. First operand has 267 places, 198 transitions, 522 flow. Second operand 5 states and 3575 transitions. [2024-11-09 07:10:08,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 200 transitions, 594 flow [2024-11-09 07:10:08,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 200 transitions, 593 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:08,939 INFO L231 Difference]: Finished difference. Result has 247 places, 197 transitions, 527 flow [2024-11-09 07:10:08,939 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=849, PETRI_DIFFERENCE_MINUEND_FLOW=521, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=527, PETRI_PLACES=247, PETRI_TRANSITIONS=197} [2024-11-09 07:10:08,940 INFO L277 CegarLoopForPetriNet]: 273 programPoint places, -26 predicate places. [2024-11-09 07:10:08,940 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 197 transitions, 527 flow [2024-11-09 07:10:08,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 714.2) internal successors, (3571), 5 states have internal predecessors, (3571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:08,940 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:08,941 INFO L204 CegarLoopForPetriNet]: trace histogram [22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:08,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2024-11-09 07:10:08,941 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-09 07:10:08,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:08,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1272017210, now seen corresponding path program 1 times [2024-11-09 07:10:08,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:08,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548428494] [2024-11-09 07:10:08,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:08,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:08,980 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:09,057 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:09,057 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:09,057 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2024-11-09 07:10:09,058 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2024-11-09 07:10:09,058 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2024-11-09 07:10:09,058 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2024-11-09 07:10:09,058 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2024-11-09 07:10:09,058 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2024-11-09 07:10:09,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 29 remaining) [2024-11-09 07:10:09,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2024-11-09 07:10:09,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2024-11-09 07:10:09,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2024-11-09 07:10:09,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2024-11-09 07:10:09,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2024-11-09 07:10:09,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2024-11-09 07:10:09,060 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2024-11-09 07:10:09,060 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2024-11-09 07:10:09,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2024-11-09 07:10:09,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2024-11-09 07:10:09,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 29 remaining) [2024-11-09 07:10:09,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 29 remaining) [2024-11-09 07:10:09,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2024-11-09 07:10:09,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2024-11-09 07:10:09,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2024-11-09 07:10:09,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2024-11-09 07:10:09,062 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2024-11-09 07:10:09,062 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2024-11-09 07:10:09,062 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2024-11-09 07:10:09,062 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2024-11-09 07:10:09,062 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2024-11-09 07:10:09,062 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2024-11-09 07:10:09,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2024-11-09 07:10:09,063 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:09,063 WARN L244 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:09,063 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2024-11-09 07:10:09,166 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:09,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 885 places, 886 transitions, 2872 flow [2024-11-09 07:10:09,432 INFO L124 PetriNetUnfolderBase]: 117/1503 cut-off events. [2024-11-09 07:10:09,432 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2024-11-09 07:10:09,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1869 conditions, 1503 events. 117/1503 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4136 event pairs, 0 based on Foata normal form. 0/1313 useless extension candidates. Maximal degree in co-relation 1824. Up to 46 conditions per place. [2024-11-09 07:10:09,449 INFO L82 GeneralOperation]: Start removeDead. Operand has 885 places, 886 transitions, 2872 flow [2024-11-09 07:10:09,453 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 282 places, 239 transitions, 1031 flow [2024-11-09 07:10:09,454 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:09,455 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:09,455 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-11-09 07:10:09,456 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:09,456 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:09,456 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:09,456 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:09,456 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:09,456 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-09 07:10:09,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:09,457 INFO L85 PathProgramCache]: Analyzing trace with hash -430590973, now seen corresponding path program 1 times [2024-11-09 07:10:09,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:09,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718831676] [2024-11-09 07:10:09,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:09,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:09,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:09,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:09,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718831676] [2024-11-09 07:10:09,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718831676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:09,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:09,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:09,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503566880] [2024-11-09 07:10:09,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:09,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:09,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:09,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:09,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:09,575 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 719 out of 886 [2024-11-09 07:10:09,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 239 transitions, 1031 flow. Second operand has 3 states, 3 states have (on average 720.3333333333334) internal successors, (2161), 3 states have internal predecessors, (2161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:09,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:09,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 719 of 886 [2024-11-09 07:10:09,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:09,760 INFO L124 PetriNetUnfolderBase]: 47/1156 cut-off events. [2024-11-09 07:10:09,760 INFO L125 PetriNetUnfolderBase]: For 2278/2278 co-relation queries the response was YES. [2024-11-09 07:10:09,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1670 conditions, 1156 events. 47/1156 cut-off events. For 2278/2278 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3167 event pairs, 23 based on Foata normal form. 47/1106 useless extension candidates. Maximal degree in co-relation 1563. Up to 167 conditions per place. [2024-11-09 07:10:09,769 INFO L140 encePairwiseOnDemand]: 880/886 looper letters, 32 selfloop transitions, 2 changer transitions 1/235 dead transitions. [2024-11-09 07:10:09,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 235 transitions, 1091 flow [2024-11-09 07:10:09,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:09,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:09,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2195 transitions. [2024-11-09 07:10:09,771 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.825808878856283 [2024-11-09 07:10:09,771 INFO L175 Difference]: Start difference. First operand has 282 places, 239 transitions, 1031 flow. Second operand 3 states and 2195 transitions. [2024-11-09 07:10:09,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 235 transitions, 1091 flow [2024-11-09 07:10:09,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 235 transitions, 670 flow, removed 210 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:09,777 INFO L231 Difference]: Finished difference. Result has 282 places, 234 transitions, 604 flow [2024-11-09 07:10:09,777 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=886, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=604, PETRI_PLACES=282, PETRI_TRANSITIONS=234} [2024-11-09 07:10:09,778 INFO L277 CegarLoopForPetriNet]: 282 programPoint places, 0 predicate places. [2024-11-09 07:10:09,778 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 234 transitions, 604 flow [2024-11-09 07:10:09,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 720.3333333333334) internal successors, (2161), 3 states have internal predecessors, (2161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:09,778 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:09,779 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] [2024-11-09 07:10:09,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2024-11-09 07:10:09,779 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-09 07:10:09,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:09,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1327285242, now seen corresponding path program 1 times [2024-11-09 07:10:09,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:09,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945987959] [2024-11-09 07:10:09,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:09,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:09,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:09,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:09,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945987959] [2024-11-09 07:10:09,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945987959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:09,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:09,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:09,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413889966] [2024-11-09 07:10:09,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:09,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:09,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:09,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:09,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:09,861 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 673 out of 886 [2024-11-09 07:10:09,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 234 transitions, 604 flow. Second operand has 3 states, 3 states have (on average 674.0) internal successors, (2022), 3 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:09,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:09,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 673 of 886 [2024-11-09 07:10:09,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:10,063 INFO L124 PetriNetUnfolderBase]: 24/1037 cut-off events. [2024-11-09 07:10:10,063 INFO L125 PetriNetUnfolderBase]: For 296/296 co-relation queries the response was YES. [2024-11-09 07:10:10,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1296 conditions, 1037 events. 24/1037 cut-off events. For 296/296 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2413 event pairs, 0 based on Foata normal form. 23/1013 useless extension candidates. Maximal degree in co-relation 1250. Up to 120 conditions per place. [2024-11-09 07:10:10,068 INFO L140 encePairwiseOnDemand]: 880/886 looper letters, 30 selfloop transitions, 1 changer transitions 24/229 dead transitions. [2024-11-09 07:10:10,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 229 transitions, 660 flow [2024-11-09 07:10:10,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:10,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:10,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2057 transitions. [2024-11-09 07:10:10,070 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7738901429646351 [2024-11-09 07:10:10,070 INFO L175 Difference]: Start difference. First operand has 282 places, 234 transitions, 604 flow. Second operand 3 states and 2057 transitions. [2024-11-09 07:10:10,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 229 transitions, 660 flow [2024-11-09 07:10:10,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 229 transitions, 656 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:10,073 INFO L231 Difference]: Finished difference. Result has 276 places, 205 transitions, 542 flow [2024-11-09 07:10:10,073 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=886, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=542, PETRI_PLACES=276, PETRI_TRANSITIONS=205} [2024-11-09 07:10:10,073 INFO L277 CegarLoopForPetriNet]: 282 programPoint places, -6 predicate places. [2024-11-09 07:10:10,073 INFO L471 AbstractCegarLoop]: Abstraction has has 276 places, 205 transitions, 542 flow [2024-11-09 07:10:10,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 674.0) internal successors, (2022), 3 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:10,074 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:10,074 INFO L204 CegarLoopForPetriNet]: trace histogram [23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:10,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2024-11-09 07:10:10,074 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-09 07:10:10,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:10,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1876137023, now seen corresponding path program 1 times [2024-11-09 07:10:10,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:10,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201735114] [2024-11-09 07:10:10,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:10,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:10,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:10,197 INFO L134 CoverageAnalysis]: Checked inductivity of 3410 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 3344 trivial. 0 not checked. [2024-11-09 07:10:10,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:10,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201735114] [2024-11-09 07:10:10,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201735114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:10,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:10,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:10,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569293403] [2024-11-09 07:10:10,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:10,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:10,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:10,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:10,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:10,300 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 739 out of 886 [2024-11-09 07:10:10,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 205 transitions, 542 flow. Second operand has 5 states, 5 states have (on average 745.4) internal successors, (3727), 5 states have internal predecessors, (3727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:10,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:10,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 739 of 886 [2024-11-09 07:10:10,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:10,405 INFO L124 PetriNetUnfolderBase]: 0/498 cut-off events. [2024-11-09 07:10:10,405 INFO L125 PetriNetUnfolderBase]: For 295/295 co-relation queries the response was YES. [2024-11-09 07:10:10,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 498 events. 0/498 cut-off events. For 295/295 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 291 event pairs, 0 based on Foata normal form. 1/498 useless extension candidates. Maximal degree in co-relation 0. Up to 74 conditions per place. [2024-11-09 07:10:10,406 INFO L140 encePairwiseOnDemand]: 881/886 looper letters, 30 selfloop transitions, 2 changer transitions 3/207 dead transitions. [2024-11-09 07:10:10,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 207 transitions, 616 flow [2024-11-09 07:10:10,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:10,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:10,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3731 transitions. [2024-11-09 07:10:10,408 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8422121896162528 [2024-11-09 07:10:10,408 INFO L175 Difference]: Start difference. First operand has 276 places, 205 transitions, 542 flow. Second operand 5 states and 3731 transitions. [2024-11-09 07:10:10,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 207 transitions, 616 flow [2024-11-09 07:10:10,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 207 transitions, 615 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:10,412 INFO L231 Difference]: Finished difference. Result has 256 places, 204 transitions, 547 flow [2024-11-09 07:10:10,412 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=886, PETRI_DIFFERENCE_MINUEND_FLOW=541, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=547, PETRI_PLACES=256, PETRI_TRANSITIONS=204} [2024-11-09 07:10:10,413 INFO L277 CegarLoopForPetriNet]: 282 programPoint places, -26 predicate places. [2024-11-09 07:10:10,413 INFO L471 AbstractCegarLoop]: Abstraction has has 256 places, 204 transitions, 547 flow [2024-11-09 07:10:10,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 745.4) internal successors, (3727), 5 states have internal predecessors, (3727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:10,413 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:10,414 INFO L204 CegarLoopForPetriNet]: trace histogram [23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:10,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2024-11-09 07:10:10,414 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-09 07:10:10,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:10,414 INFO L85 PathProgramCache]: Analyzing trace with hash 48442644, now seen corresponding path program 1 times [2024-11-09 07:10:10,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:10,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376168398] [2024-11-09 07:10:10,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:10,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:10,453 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:10,528 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:10,528 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:10,528 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 30 remaining) [2024-11-09 07:10:10,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 30 remaining) [2024-11-09 07:10:10,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 30 remaining) [2024-11-09 07:10:10,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (26 of 30 remaining) [2024-11-09 07:10:10,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (25 of 30 remaining) [2024-11-09 07:10:10,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (24 of 30 remaining) [2024-11-09 07:10:10,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 30 remaining) [2024-11-09 07:10:10,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 30 remaining) [2024-11-09 07:10:10,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 30 remaining) [2024-11-09 07:10:10,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 30 remaining) [2024-11-09 07:10:10,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 30 remaining) [2024-11-09 07:10:10,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 30 remaining) [2024-11-09 07:10:10,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 30 remaining) [2024-11-09 07:10:10,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 30 remaining) [2024-11-09 07:10:10,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 30 remaining) [2024-11-09 07:10:10,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 30 remaining) [2024-11-09 07:10:10,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 30 remaining) [2024-11-09 07:10:10,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 30 remaining) [2024-11-09 07:10:10,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 30 remaining) [2024-11-09 07:10:10,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 30 remaining) [2024-11-09 07:10:10,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 30 remaining) [2024-11-09 07:10:10,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 30 remaining) [2024-11-09 07:10:10,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 30 remaining) [2024-11-09 07:10:10,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 30 remaining) [2024-11-09 07:10:10,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 30 remaining) [2024-11-09 07:10:10,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 30 remaining) [2024-11-09 07:10:10,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 30 remaining) [2024-11-09 07:10:10,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 30 remaining) [2024-11-09 07:10:10,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 30 remaining) [2024-11-09 07:10:10,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 30 remaining) [2024-11-09 07:10:10,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2024-11-09 07:10:10,533 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:10,533 WARN L244 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:10,533 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2024-11-09 07:10:10,634 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:10,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 922 places, 923 transitions, 3042 flow [2024-11-09 07:10:10,896 INFO L124 PetriNetUnfolderBase]: 122/1567 cut-off events. [2024-11-09 07:10:10,896 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2024-11-09 07:10:10,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1961 conditions, 1567 events. 122/1567 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4281 event pairs, 0 based on Foata normal form. 0/1369 useless extension candidates. Maximal degree in co-relation 1914. Up to 48 conditions per place. [2024-11-09 07:10:10,910 INFO L82 GeneralOperation]: Start removeDead. Operand has 922 places, 923 transitions, 3042 flow [2024-11-09 07:10:10,913 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 291 places, 246 transitions, 1093 flow [2024-11-09 07:10:10,913 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:10,914 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:10,914 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-11-09 07:10:10,915 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:10,915 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:10,916 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:10,916 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:10,916 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:10,916 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-09 07:10:10,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:10,916 INFO L85 PathProgramCache]: Analyzing trace with hash -25448701, now seen corresponding path program 1 times [2024-11-09 07:10:10,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:10,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044408542] [2024-11-09 07:10:10,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:10,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:10,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:10,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:10,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:10,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044408542] [2024-11-09 07:10:10,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044408542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:10,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:10,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:10,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631538406] [2024-11-09 07:10:10,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:10,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:10,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:10,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:10,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:11,057 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 749 out of 923 [2024-11-09 07:10:11,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 246 transitions, 1093 flow. Second operand has 3 states, 3 states have (on average 750.3333333333334) internal successors, (2251), 3 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:11,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:11,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 749 of 923 [2024-11-09 07:10:11,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:11,250 INFO L124 PetriNetUnfolderBase]: 49/1205 cut-off events. [2024-11-09 07:10:11,250 INFO L125 PetriNetUnfolderBase]: For 2577/2577 co-relation queries the response was YES. [2024-11-09 07:10:11,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1753 conditions, 1205 events. 49/1205 cut-off events. For 2577/2577 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3270 event pairs, 24 based on Foata normal form. 25/1129 useless extension candidates. Maximal degree in co-relation 1644. Up to 174 conditions per place. [2024-11-09 07:10:11,260 INFO L140 encePairwiseOnDemand]: 917/923 looper letters, 33 selfloop transitions, 2 changer transitions 1/242 dead transitions. [2024-11-09 07:10:11,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 242 transitions, 1155 flow [2024-11-09 07:10:11,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:11,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:11,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2286 transitions. [2024-11-09 07:10:11,262 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8255687973997833 [2024-11-09 07:10:11,262 INFO L175 Difference]: Start difference. First operand has 291 places, 246 transitions, 1093 flow. Second operand 3 states and 2286 transitions. [2024-11-09 07:10:11,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 242 transitions, 1155 flow [2024-11-09 07:10:11,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 242 transitions, 692 flow, removed 231 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:11,270 INFO L231 Difference]: Finished difference. Result has 291 places, 241 transitions, 624 flow [2024-11-09 07:10:11,270 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=923, PETRI_DIFFERENCE_MINUEND_FLOW=622, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=624, PETRI_PLACES=291, PETRI_TRANSITIONS=241} [2024-11-09 07:10:11,270 INFO L277 CegarLoopForPetriNet]: 291 programPoint places, 0 predicate places. [2024-11-09 07:10:11,271 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 241 transitions, 624 flow [2024-11-09 07:10:11,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 750.3333333333334) internal successors, (2251), 3 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:11,271 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:11,271 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] [2024-11-09 07:10:11,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2024-11-09 07:10:11,271 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-09 07:10:11,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:11,272 INFO L85 PathProgramCache]: Analyzing trace with hash 21317062, now seen corresponding path program 1 times [2024-11-09 07:10:11,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:11,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625072501] [2024-11-09 07:10:11,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:11,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:11,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:11,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:11,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:11,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625072501] [2024-11-09 07:10:11,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625072501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:11,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:11,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:11,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710144815] [2024-11-09 07:10:11,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:11,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:11,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:11,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:11,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:11,355 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 701 out of 923 [2024-11-09 07:10:11,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 241 transitions, 624 flow. Second operand has 3 states, 3 states have (on average 702.0) internal successors, (2106), 3 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:11,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:11,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 701 of 923 [2024-11-09 07:10:11,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:11,681 INFO L124 PetriNetUnfolderBase]: 25/1081 cut-off events. [2024-11-09 07:10:11,681 INFO L125 PetriNetUnfolderBase]: For 321/321 co-relation queries the response was YES. [2024-11-09 07:10:11,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1351 conditions, 1081 events. 25/1081 cut-off events. For 321/321 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2427 event pairs, 0 based on Foata normal form. 24/1056 useless extension candidates. Maximal degree in co-relation 1304. Up to 125 conditions per place. [2024-11-09 07:10:11,689 INFO L140 encePairwiseOnDemand]: 917/923 looper letters, 31 selfloop transitions, 1 changer transitions 24/236 dead transitions. [2024-11-09 07:10:11,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 236 transitions, 682 flow [2024-11-09 07:10:11,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:11,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:11,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2142 transitions. [2024-11-09 07:10:11,692 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7735644637053087 [2024-11-09 07:10:11,692 INFO L175 Difference]: Start difference. First operand has 291 places, 241 transitions, 624 flow. Second operand 3 states and 2142 transitions. [2024-11-09 07:10:11,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 236 transitions, 682 flow [2024-11-09 07:10:11,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 236 transitions, 678 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:11,696 INFO L231 Difference]: Finished difference. Result has 285 places, 212 transitions, 562 flow [2024-11-09 07:10:11,696 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=923, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=562, PETRI_PLACES=285, PETRI_TRANSITIONS=212} [2024-11-09 07:10:11,696 INFO L277 CegarLoopForPetriNet]: 291 programPoint places, -6 predicate places. [2024-11-09 07:10:11,696 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 212 transitions, 562 flow [2024-11-09 07:10:11,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 702.0) internal successors, (2106), 3 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:11,697 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:11,697 INFO L204 CegarLoopForPetriNet]: trace histogram [24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:11,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2024-11-09 07:10:11,697 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-09 07:10:11,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:11,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1123160207, now seen corresponding path program 1 times [2024-11-09 07:10:11,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:11,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454020318] [2024-11-09 07:10:11,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:11,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:11,881 INFO L134 CoverageAnalysis]: Checked inductivity of 3726 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 3657 trivial. 0 not checked. [2024-11-09 07:10:11,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:11,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454020318] [2024-11-09 07:10:11,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454020318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:11,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:11,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:11,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841592022] [2024-11-09 07:10:11,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:11,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:11,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:11,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:11,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:11,973 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 770 out of 923 [2024-11-09 07:10:11,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 212 transitions, 562 flow. Second operand has 5 states, 5 states have (on average 776.6) internal successors, (3883), 5 states have internal predecessors, (3883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:11,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:11,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 770 of 923 [2024-11-09 07:10:11,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:12,237 INFO L124 PetriNetUnfolderBase]: 0/518 cut-off events. [2024-11-09 07:10:12,237 INFO L125 PetriNetUnfolderBase]: For 320/320 co-relation queries the response was YES. [2024-11-09 07:10:12,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 518 events. 0/518 cut-off events. For 320/320 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 303 event pairs, 0 based on Foata normal form. 1/518 useless extension candidates. Maximal degree in co-relation 0. Up to 77 conditions per place. [2024-11-09 07:10:12,238 INFO L140 encePairwiseOnDemand]: 918/923 looper letters, 31 selfloop transitions, 2 changer transitions 3/214 dead transitions. [2024-11-09 07:10:12,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 214 transitions, 638 flow [2024-11-09 07:10:12,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:12,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:12,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3887 transitions. [2024-11-09 07:10:12,247 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8422535211267606 [2024-11-09 07:10:12,247 INFO L175 Difference]: Start difference. First operand has 285 places, 212 transitions, 562 flow. Second operand 5 states and 3887 transitions. [2024-11-09 07:10:12,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 214 transitions, 638 flow [2024-11-09 07:10:12,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 214 transitions, 637 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:12,252 INFO L231 Difference]: Finished difference. Result has 265 places, 211 transitions, 567 flow [2024-11-09 07:10:12,252 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=923, PETRI_DIFFERENCE_MINUEND_FLOW=561, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=567, PETRI_PLACES=265, PETRI_TRANSITIONS=211} [2024-11-09 07:10:12,252 INFO L277 CegarLoopForPetriNet]: 291 programPoint places, -26 predicate places. [2024-11-09 07:10:12,252 INFO L471 AbstractCegarLoop]: Abstraction has has 265 places, 211 transitions, 567 flow [2024-11-09 07:10:12,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 776.6) internal successors, (3883), 5 states have internal predecessors, (3883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:12,253 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:12,253 INFO L204 CegarLoopForPetriNet]: trace histogram [24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:12,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2024-11-09 07:10:12,254 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-09 07:10:12,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:12,254 INFO L85 PathProgramCache]: Analyzing trace with hash -2073062007, now seen corresponding path program 1 times [2024-11-09 07:10:12,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:12,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493064676] [2024-11-09 07:10:12,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:12,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:12,318 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:12,417 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:12,417 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:12,417 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-11-09 07:10:12,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2024-11-09 07:10:12,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2024-11-09 07:10:12,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2024-11-09 07:10:12,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2024-11-09 07:10:12,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2024-11-09 07:10:12,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 31 remaining) [2024-11-09 07:10:12,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2024-11-09 07:10:12,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2024-11-09 07:10:12,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2024-11-09 07:10:12,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2024-11-09 07:10:12,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2024-11-09 07:10:12,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2024-11-09 07:10:12,420 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2024-11-09 07:10:12,420 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2024-11-09 07:10:12,420 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2024-11-09 07:10:12,420 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2024-11-09 07:10:12,420 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2024-11-09 07:10:12,420 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2024-11-09 07:10:12,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2024-11-09 07:10:12,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2024-11-09 07:10:12,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2024-11-09 07:10:12,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2024-11-09 07:10:12,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2024-11-09 07:10:12,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2024-11-09 07:10:12,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2024-11-09 07:10:12,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2024-11-09 07:10:12,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2024-11-09 07:10:12,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2024-11-09 07:10:12,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2024-11-09 07:10:12,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2024-11-09 07:10:12,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2024-11-09 07:10:12,422 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:12,423 WARN L244 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:12,423 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2024-11-09 07:10:12,555 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:12,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 959 places, 960 transitions, 3216 flow [2024-11-09 07:10:12,897 INFO L124 PetriNetUnfolderBase]: 127/1631 cut-off events. [2024-11-09 07:10:12,897 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2024-11-09 07:10:12,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2054 conditions, 1631 events. 127/1631 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4534 event pairs, 0 based on Foata normal form. 0/1425 useless extension candidates. Maximal degree in co-relation 2005. Up to 50 conditions per place. [2024-11-09 07:10:12,912 INFO L82 GeneralOperation]: Start removeDead. Operand has 959 places, 960 transitions, 3216 flow [2024-11-09 07:10:12,916 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 300 places, 253 transitions, 1157 flow [2024-11-09 07:10:12,917 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:12,917 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:12,917 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-11-09 07:10:12,919 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:12,919 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:12,919 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:12,919 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:12,919 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:12,919 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-09 07:10:12,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:12,920 INFO L85 PathProgramCache]: Analyzing trace with hash 330788611, now seen corresponding path program 1 times [2024-11-09 07:10:12,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:12,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171205827] [2024-11-09 07:10:12,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:12,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:12,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:12,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:12,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:12,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171205827] [2024-11-09 07:10:12,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171205827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:12,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:12,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:12,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821648826] [2024-11-09 07:10:12,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:12,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:12,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:12,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:12,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:13,043 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 779 out of 960 [2024-11-09 07:10:13,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 253 transitions, 1157 flow. Second operand has 3 states, 3 states have (on average 780.3333333333334) internal successors, (2341), 3 states have internal predecessors, (2341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:13,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:13,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 779 of 960 [2024-11-09 07:10:13,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:13,270 INFO L124 PetriNetUnfolderBase]: 51/1254 cut-off events. [2024-11-09 07:10:13,270 INFO L125 PetriNetUnfolderBase]: For 2901/2901 co-relation queries the response was YES. [2024-11-09 07:10:13,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1837 conditions, 1254 events. 51/1254 cut-off events. For 2901/2901 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3503 event pairs, 25 based on Foata normal form. 51/1200 useless extension candidates. Maximal degree in co-relation 1726. Up to 181 conditions per place. [2024-11-09 07:10:13,282 INFO L140 encePairwiseOnDemand]: 954/960 looper letters, 34 selfloop transitions, 2 changer transitions 1/249 dead transitions. [2024-11-09 07:10:13,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 249 transitions, 1221 flow [2024-11-09 07:10:13,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:13,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:13,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2377 transitions. [2024-11-09 07:10:13,284 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8253472222222222 [2024-11-09 07:10:13,284 INFO L175 Difference]: Start difference. First operand has 300 places, 253 transitions, 1157 flow. Second operand 3 states and 2377 transitions. [2024-11-09 07:10:13,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 249 transitions, 1221 flow [2024-11-09 07:10:13,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 249 transitions, 714 flow, removed 253 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:13,294 INFO L231 Difference]: Finished difference. Result has 300 places, 248 transitions, 644 flow [2024-11-09 07:10:13,294 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=960, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=644, PETRI_PLACES=300, PETRI_TRANSITIONS=248} [2024-11-09 07:10:13,295 INFO L277 CegarLoopForPetriNet]: 300 programPoint places, 0 predicate places. [2024-11-09 07:10:13,295 INFO L471 AbstractCegarLoop]: Abstraction has has 300 places, 248 transitions, 644 flow [2024-11-09 07:10:13,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 780.3333333333334) internal successors, (2341), 3 states have internal predecessors, (2341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:13,295 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:13,295 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] [2024-11-09 07:10:13,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2024-11-09 07:10:13,296 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-09 07:10:13,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:13,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1805388346, now seen corresponding path program 1 times [2024-11-09 07:10:13,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:13,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79758145] [2024-11-09 07:10:13,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:13,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:13,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:13,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:13,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79758145] [2024-11-09 07:10:13,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79758145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:13,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:13,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:13,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325364225] [2024-11-09 07:10:13,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:13,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:13,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:13,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:13,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:13,389 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 729 out of 960 [2024-11-09 07:10:13,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 248 transitions, 644 flow. Second operand has 3 states, 3 states have (on average 730.0) internal successors, (2190), 3 states have internal predecessors, (2190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:13,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:13,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 729 of 960 [2024-11-09 07:10:13,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:13,664 INFO L124 PetriNetUnfolderBase]: 26/1125 cut-off events. [2024-11-09 07:10:13,665 INFO L125 PetriNetUnfolderBase]: For 347/347 co-relation queries the response was YES. [2024-11-09 07:10:13,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1406 conditions, 1125 events. 26/1125 cut-off events. For 347/347 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2630 event pairs, 0 based on Foata normal form. 25/1099 useless extension candidates. Maximal degree in co-relation 1358. Up to 130 conditions per place. [2024-11-09 07:10:13,669 INFO L140 encePairwiseOnDemand]: 954/960 looper letters, 32 selfloop transitions, 1 changer transitions 24/243 dead transitions. [2024-11-09 07:10:13,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 243 transitions, 704 flow [2024-11-09 07:10:13,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:13,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:13,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2227 transitions. [2024-11-09 07:10:13,670 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7732638888888889 [2024-11-09 07:10:13,670 INFO L175 Difference]: Start difference. First operand has 300 places, 248 transitions, 644 flow. Second operand 3 states and 2227 transitions. [2024-11-09 07:10:13,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 243 transitions, 704 flow [2024-11-09 07:10:13,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 243 transitions, 700 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:13,673 INFO L231 Difference]: Finished difference. Result has 294 places, 219 transitions, 582 flow [2024-11-09 07:10:13,673 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=960, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=582, PETRI_PLACES=294, PETRI_TRANSITIONS=219} [2024-11-09 07:10:13,674 INFO L277 CegarLoopForPetriNet]: 300 programPoint places, -6 predicate places. [2024-11-09 07:10:13,674 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 219 transitions, 582 flow [2024-11-09 07:10:13,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 730.0) internal successors, (2190), 3 states have internal predecessors, (2190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:13,674 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:13,674 INFO L204 CegarLoopForPetriNet]: trace histogram [25, 25, 25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:13,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2024-11-09 07:10:13,674 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-09 07:10:13,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:13,675 INFO L85 PathProgramCache]: Analyzing trace with hash 2111759371, now seen corresponding path program 1 times [2024-11-09 07:10:13,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:13,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882363712] [2024-11-09 07:10:13,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:13,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:13,806 INFO L134 CoverageAnalysis]: Checked inductivity of 4056 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 3984 trivial. 0 not checked. [2024-11-09 07:10:13,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:13,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882363712] [2024-11-09 07:10:13,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882363712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:13,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:13,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:13,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117687417] [2024-11-09 07:10:13,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:13,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:13,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:13,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:13,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:13,921 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 801 out of 960 [2024-11-09 07:10:13,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 219 transitions, 582 flow. Second operand has 5 states, 5 states have (on average 807.8) internal successors, (4039), 5 states have internal predecessors, (4039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:13,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:13,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 801 of 960 [2024-11-09 07:10:13,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:14,025 INFO L124 PetriNetUnfolderBase]: 0/538 cut-off events. [2024-11-09 07:10:14,025 INFO L125 PetriNetUnfolderBase]: For 346/346 co-relation queries the response was YES. [2024-11-09 07:10:14,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 721 conditions, 538 events. 0/538 cut-off events. For 346/346 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 316 event pairs, 0 based on Foata normal form. 1/538 useless extension candidates. Maximal degree in co-relation 0. Up to 80 conditions per place. [2024-11-09 07:10:14,026 INFO L140 encePairwiseOnDemand]: 955/960 looper letters, 32 selfloop transitions, 2 changer transitions 3/221 dead transitions. [2024-11-09 07:10:14,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 221 transitions, 660 flow [2024-11-09 07:10:14,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:14,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:14,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4043 transitions. [2024-11-09 07:10:14,029 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8422916666666667 [2024-11-09 07:10:14,029 INFO L175 Difference]: Start difference. First operand has 294 places, 219 transitions, 582 flow. Second operand 5 states and 4043 transitions. [2024-11-09 07:10:14,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 221 transitions, 660 flow [2024-11-09 07:10:14,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 221 transitions, 659 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:14,033 INFO L231 Difference]: Finished difference. Result has 274 places, 218 transitions, 587 flow [2024-11-09 07:10:14,034 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=960, PETRI_DIFFERENCE_MINUEND_FLOW=581, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=587, PETRI_PLACES=274, PETRI_TRANSITIONS=218} [2024-11-09 07:10:14,034 INFO L277 CegarLoopForPetriNet]: 300 programPoint places, -26 predicate places. [2024-11-09 07:10:14,034 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 218 transitions, 587 flow [2024-11-09 07:10:14,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 807.8) internal successors, (4039), 5 states have internal predecessors, (4039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:14,035 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:14,035 INFO L204 CegarLoopForPetriNet]: trace histogram [25, 25, 25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:14,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2024-11-09 07:10:14,035 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-09 07:10:14,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:14,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1489872955, now seen corresponding path program 1 times [2024-11-09 07:10:14,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:14,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478113783] [2024-11-09 07:10:14,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:14,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:14,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:14,079 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:14,162 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:14,162 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:14,162 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 32 remaining) [2024-11-09 07:10:14,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (30 of 32 remaining) [2024-11-09 07:10:14,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (29 of 32 remaining) [2024-11-09 07:10:14,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (28 of 32 remaining) [2024-11-09 07:10:14,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (27 of 32 remaining) [2024-11-09 07:10:14,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (26 of 32 remaining) [2024-11-09 07:10:14,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 32 remaining) [2024-11-09 07:10:14,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 32 remaining) [2024-11-09 07:10:14,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 32 remaining) [2024-11-09 07:10:14,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 32 remaining) [2024-11-09 07:10:14,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 32 remaining) [2024-11-09 07:10:14,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 32 remaining) [2024-11-09 07:10:14,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 32 remaining) [2024-11-09 07:10:14,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 32 remaining) [2024-11-09 07:10:14,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 32 remaining) [2024-11-09 07:10:14,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 32 remaining) [2024-11-09 07:10:14,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 32 remaining) [2024-11-09 07:10:14,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 32 remaining) [2024-11-09 07:10:14,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 32 remaining) [2024-11-09 07:10:14,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 32 remaining) [2024-11-09 07:10:14,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 32 remaining) [2024-11-09 07:10:14,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 32 remaining) [2024-11-09 07:10:14,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 32 remaining) [2024-11-09 07:10:14,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 32 remaining) [2024-11-09 07:10:14,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 32 remaining) [2024-11-09 07:10:14,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 32 remaining) [2024-11-09 07:10:14,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 32 remaining) [2024-11-09 07:10:14,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 32 remaining) [2024-11-09 07:10:14,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 32 remaining) [2024-11-09 07:10:14,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 32 remaining) [2024-11-09 07:10:14,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 32 remaining) [2024-11-09 07:10:14,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 32 remaining) [2024-11-09 07:10:14,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2024-11-09 07:10:14,166 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:14,167 WARN L244 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:14,167 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2024-11-09 07:10:14,281 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:14,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 996 places, 997 transitions, 3394 flow [2024-11-09 07:10:14,567 INFO L124 PetriNetUnfolderBase]: 132/1695 cut-off events. [2024-11-09 07:10:14,567 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2024-11-09 07:10:14,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2148 conditions, 1695 events. 132/1695 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4741 event pairs, 0 based on Foata normal form. 0/1481 useless extension candidates. Maximal degree in co-relation 2097. Up to 52 conditions per place. [2024-11-09 07:10:14,581 INFO L82 GeneralOperation]: Start removeDead. Operand has 996 places, 997 transitions, 3394 flow [2024-11-09 07:10:14,585 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 309 places, 260 transitions, 1223 flow [2024-11-09 07:10:14,585 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:14,585 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:14,585 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-11-09 07:10:14,586 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:14,587 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:14,587 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:14,587 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:14,587 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:14,587 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-11-09 07:10:14,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:14,587 INFO L85 PathProgramCache]: Analyzing trace with hash 638120963, now seen corresponding path program 1 times [2024-11-09 07:10:14,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:14,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241168276] [2024-11-09 07:10:14,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:14,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:14,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:14,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:14,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241168276] [2024-11-09 07:10:14,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241168276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:14,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:14,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:14,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088514805] [2024-11-09 07:10:14,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:14,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:14,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:14,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:14,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:14,740 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 809 out of 997 [2024-11-09 07:10:14,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 260 transitions, 1223 flow. Second operand has 3 states, 3 states have (on average 810.3333333333334) internal successors, (2431), 3 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:14,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:14,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 809 of 997 [2024-11-09 07:10:14,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:14,952 INFO L124 PetriNetUnfolderBase]: 53/1303 cut-off events. [2024-11-09 07:10:14,952 INFO L125 PetriNetUnfolderBase]: For 3251/3251 co-relation queries the response was YES. [2024-11-09 07:10:14,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1922 conditions, 1303 events. 53/1303 cut-off events. For 3251/3251 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3573 event pairs, 26 based on Foata normal form. 27/1221 useless extension candidates. Maximal degree in co-relation 1809. Up to 188 conditions per place. [2024-11-09 07:10:14,964 INFO L140 encePairwiseOnDemand]: 991/997 looper letters, 35 selfloop transitions, 2 changer transitions 1/256 dead transitions. [2024-11-09 07:10:14,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 256 transitions, 1289 flow [2024-11-09 07:10:14,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:14,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:14,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2468 transitions. [2024-11-09 07:10:14,966 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8251420929455032 [2024-11-09 07:10:14,966 INFO L175 Difference]: Start difference. First operand has 309 places, 260 transitions, 1223 flow. Second operand 3 states and 2468 transitions. [2024-11-09 07:10:14,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 256 transitions, 1289 flow [2024-11-09 07:10:14,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 256 transitions, 736 flow, removed 276 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:14,973 INFO L231 Difference]: Finished difference. Result has 309 places, 255 transitions, 664 flow [2024-11-09 07:10:14,973 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=997, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=664, PETRI_PLACES=309, PETRI_TRANSITIONS=255} [2024-11-09 07:10:14,973 INFO L277 CegarLoopForPetriNet]: 309 programPoint places, 0 predicate places. [2024-11-09 07:10:14,973 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 255 transitions, 664 flow [2024-11-09 07:10:14,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 810.3333333333334) internal successors, (2431), 3 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:14,973 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:14,974 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] [2024-11-09 07:10:14,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2024-11-09 07:10:14,974 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-11-09 07:10:14,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:14,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1782533126, now seen corresponding path program 1 times [2024-11-09 07:10:14,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:14,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575422446] [2024-11-09 07:10:14,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:14,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:14,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:14,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:14,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575422446] [2024-11-09 07:10:14,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575422446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:14,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:14,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:14,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178755790] [2024-11-09 07:10:14,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:14,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:14,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:14,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:14,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:15,056 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 757 out of 997 [2024-11-09 07:10:15,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 255 transitions, 664 flow. Second operand has 3 states, 3 states have (on average 758.0) internal successors, (2274), 3 states have internal predecessors, (2274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:15,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:15,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 757 of 997 [2024-11-09 07:10:15,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:15,261 INFO L124 PetriNetUnfolderBase]: 27/1169 cut-off events. [2024-11-09 07:10:15,261 INFO L125 PetriNetUnfolderBase]: For 374/374 co-relation queries the response was YES. [2024-11-09 07:10:15,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1461 conditions, 1169 events. 27/1169 cut-off events. For 374/374 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2659 event pairs, 0 based on Foata normal form. 26/1142 useless extension candidates. Maximal degree in co-relation 1412. Up to 135 conditions per place. [2024-11-09 07:10:15,271 INFO L140 encePairwiseOnDemand]: 991/997 looper letters, 33 selfloop transitions, 1 changer transitions 24/250 dead transitions. [2024-11-09 07:10:15,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 250 transitions, 726 flow [2024-11-09 07:10:15,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:15,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:15,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2312 transitions. [2024-11-09 07:10:15,273 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7729856235372785 [2024-11-09 07:10:15,273 INFO L175 Difference]: Start difference. First operand has 309 places, 255 transitions, 664 flow. Second operand 3 states and 2312 transitions. [2024-11-09 07:10:15,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 250 transitions, 726 flow [2024-11-09 07:10:15,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 250 transitions, 722 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:15,276 INFO L231 Difference]: Finished difference. Result has 303 places, 226 transitions, 602 flow [2024-11-09 07:10:15,276 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=997, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=602, PETRI_PLACES=303, PETRI_TRANSITIONS=226} [2024-11-09 07:10:15,277 INFO L277 CegarLoopForPetriNet]: 309 programPoint places, -6 predicate places. [2024-11-09 07:10:15,277 INFO L471 AbstractCegarLoop]: Abstraction has has 303 places, 226 transitions, 602 flow [2024-11-09 07:10:15,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 758.0) internal successors, (2274), 3 states have internal predecessors, (2274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:15,277 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:15,277 INFO L204 CegarLoopForPetriNet]: trace histogram [26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:15,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2024-11-09 07:10:15,277 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-11-09 07:10:15,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:15,278 INFO L85 PathProgramCache]: Analyzing trace with hash -609882093, now seen corresponding path program 1 times [2024-11-09 07:10:15,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:15,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875131028] [2024-11-09 07:10:15,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:15,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:15,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:15,416 INFO L134 CoverageAnalysis]: Checked inductivity of 4400 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 4325 trivial. 0 not checked. [2024-11-09 07:10:15,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:15,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875131028] [2024-11-09 07:10:15,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875131028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:15,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:15,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:15,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801247142] [2024-11-09 07:10:15,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:15,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:15,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:15,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:15,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:15,504 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 832 out of 997 [2024-11-09 07:10:15,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 226 transitions, 602 flow. Second operand has 5 states, 5 states have (on average 839.0) internal successors, (4195), 5 states have internal predecessors, (4195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:15,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:15,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 832 of 997 [2024-11-09 07:10:15,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:15,763 INFO L124 PetriNetUnfolderBase]: 0/558 cut-off events. [2024-11-09 07:10:15,763 INFO L125 PetriNetUnfolderBase]: For 373/373 co-relation queries the response was YES. [2024-11-09 07:10:15,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 748 conditions, 558 events. 0/558 cut-off events. For 373/373 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 328 event pairs, 0 based on Foata normal form. 1/558 useless extension candidates. Maximal degree in co-relation 0. Up to 83 conditions per place. [2024-11-09 07:10:15,764 INFO L140 encePairwiseOnDemand]: 992/997 looper letters, 33 selfloop transitions, 2 changer transitions 3/228 dead transitions. [2024-11-09 07:10:15,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 228 transitions, 682 flow [2024-11-09 07:10:15,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:15,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:15,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4199 transitions. [2024-11-09 07:10:15,767 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8423269809428285 [2024-11-09 07:10:15,767 INFO L175 Difference]: Start difference. First operand has 303 places, 226 transitions, 602 flow. Second operand 5 states and 4199 transitions. [2024-11-09 07:10:15,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 228 transitions, 682 flow [2024-11-09 07:10:15,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 228 transitions, 681 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:15,771 INFO L231 Difference]: Finished difference. Result has 283 places, 225 transitions, 607 flow [2024-11-09 07:10:15,772 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=997, PETRI_DIFFERENCE_MINUEND_FLOW=601, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=607, PETRI_PLACES=283, PETRI_TRANSITIONS=225} [2024-11-09 07:10:15,772 INFO L277 CegarLoopForPetriNet]: 309 programPoint places, -26 predicate places. [2024-11-09 07:10:15,772 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 225 transitions, 607 flow [2024-11-09 07:10:15,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 839.0) internal successors, (4195), 5 states have internal predecessors, (4195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:15,773 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:15,773 INFO L204 CegarLoopForPetriNet]: trace histogram [26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:15,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2024-11-09 07:10:15,774 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-11-09 07:10:15,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:15,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1314317160, now seen corresponding path program 1 times [2024-11-09 07:10:15,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:15,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995268516] [2024-11-09 07:10:15,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:15,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:15,823 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:15,913 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:15,913 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:15,913 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2024-11-09 07:10:15,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2024-11-09 07:10:15,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2024-11-09 07:10:15,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2024-11-09 07:10:15,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2024-11-09 07:10:15,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2024-11-09 07:10:15,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 33 remaining) [2024-11-09 07:10:15,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2024-11-09 07:10:15,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2024-11-09 07:10:15,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2024-11-09 07:10:15,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2024-11-09 07:10:15,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2024-11-09 07:10:15,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2024-11-09 07:10:15,915 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2024-11-09 07:10:15,915 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2024-11-09 07:10:15,915 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2024-11-09 07:10:15,915 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2024-11-09 07:10:15,915 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2024-11-09 07:10:15,915 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2024-11-09 07:10:15,915 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2024-11-09 07:10:15,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2024-11-09 07:10:15,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2024-11-09 07:10:15,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2024-11-09 07:10:15,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2024-11-09 07:10:15,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2024-11-09 07:10:15,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2024-11-09 07:10:15,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2024-11-09 07:10:15,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2024-11-09 07:10:15,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2024-11-09 07:10:15,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2024-11-09 07:10:15,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2024-11-09 07:10:15,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2024-11-09 07:10:15,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2024-11-09 07:10:15,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2024-11-09 07:10:15,917 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:15,918 WARN L244 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:15,918 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2024-11-09 07:10:16,032 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:16,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1033 places, 1034 transitions, 3576 flow [2024-11-09 07:10:16,297 INFO L124 PetriNetUnfolderBase]: 137/1759 cut-off events. [2024-11-09 07:10:16,297 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2024-11-09 07:10:16,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2243 conditions, 1759 events. 137/1759 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4791 event pairs, 0 based on Foata normal form. 0/1537 useless extension candidates. Maximal degree in co-relation 2190. Up to 54 conditions per place. [2024-11-09 07:10:16,312 INFO L82 GeneralOperation]: Start removeDead. Operand has 1033 places, 1034 transitions, 3576 flow [2024-11-09 07:10:16,315 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 318 places, 267 transitions, 1291 flow [2024-11-09 07:10:16,316 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:16,316 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:16,316 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-11-09 07:10:16,317 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:16,318 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:16,318 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:16,318 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:16,318 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:16,318 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2024-11-09 07:10:16,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:16,318 INFO L85 PathProgramCache]: Analyzing trace with hash 896548355, now seen corresponding path program 1 times [2024-11-09 07:10:16,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:16,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862330789] [2024-11-09 07:10:16,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:16,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:16,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:16,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:16,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862330789] [2024-11-09 07:10:16,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862330789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:16,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:16,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:16,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748931343] [2024-11-09 07:10:16,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:16,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:16,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:16,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:16,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:16,425 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 839 out of 1034 [2024-11-09 07:10:16,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 267 transitions, 1291 flow. Second operand has 3 states, 3 states have (on average 840.3333333333334) internal successors, (2521), 3 states have internal predecessors, (2521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:16,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:16,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 839 of 1034 [2024-11-09 07:10:16,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:16,669 INFO L124 PetriNetUnfolderBase]: 55/1352 cut-off events. [2024-11-09 07:10:16,669 INFO L125 PetriNetUnfolderBase]: For 3628/3628 co-relation queries the response was YES. [2024-11-09 07:10:16,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2008 conditions, 1352 events. 55/1352 cut-off events. For 3628/3628 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3773 event pairs, 27 based on Foata normal form. 55/1294 useless extension candidates. Maximal degree in co-relation 1893. Up to 195 conditions per place. [2024-11-09 07:10:16,683 INFO L140 encePairwiseOnDemand]: 1028/1034 looper letters, 36 selfloop transitions, 2 changer transitions 1/263 dead transitions. [2024-11-09 07:10:16,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 263 transitions, 1359 flow [2024-11-09 07:10:16,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:16,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:16,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2559 transitions. [2024-11-09 07:10:16,685 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8249516441005803 [2024-11-09 07:10:16,685 INFO L175 Difference]: Start difference. First operand has 318 places, 267 transitions, 1291 flow. Second operand 3 states and 2559 transitions. [2024-11-09 07:10:16,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 263 transitions, 1359 flow [2024-11-09 07:10:16,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 263 transitions, 758 flow, removed 300 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:16,692 INFO L231 Difference]: Finished difference. Result has 318 places, 262 transitions, 684 flow [2024-11-09 07:10:16,692 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1034, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=684, PETRI_PLACES=318, PETRI_TRANSITIONS=262} [2024-11-09 07:10:16,692 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, 0 predicate places. [2024-11-09 07:10:16,693 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 262 transitions, 684 flow [2024-11-09 07:10:16,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 840.3333333333334) internal successors, (2521), 3 states have internal predecessors, (2521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:16,693 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:16,693 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] [2024-11-09 07:10:16,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2024-11-09 07:10:16,693 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2024-11-09 07:10:16,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:16,694 INFO L85 PathProgramCache]: Analyzing trace with hash -2099820410, now seen corresponding path program 1 times [2024-11-09 07:10:16,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:16,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143016645] [2024-11-09 07:10:16,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:16,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:16,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:16,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:16,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:16,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143016645] [2024-11-09 07:10:16,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143016645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:16,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:16,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:16,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100220508] [2024-11-09 07:10:16,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:16,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:16,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:16,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:16,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:16,783 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 785 out of 1034 [2024-11-09 07:10:16,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 262 transitions, 684 flow. Second operand has 3 states, 3 states have (on average 786.0) internal successors, (2358), 3 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:16,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:16,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 785 of 1034 [2024-11-09 07:10:16,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:16,993 INFO L124 PetriNetUnfolderBase]: 28/1213 cut-off events. [2024-11-09 07:10:16,993 INFO L125 PetriNetUnfolderBase]: For 402/402 co-relation queries the response was YES. [2024-11-09 07:10:17,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1516 conditions, 1213 events. 28/1213 cut-off events. For 402/402 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2846 event pairs, 0 based on Foata normal form. 27/1185 useless extension candidates. Maximal degree in co-relation 1466. Up to 140 conditions per place. [2024-11-09 07:10:17,004 INFO L140 encePairwiseOnDemand]: 1028/1034 looper letters, 34 selfloop transitions, 1 changer transitions 24/257 dead transitions. [2024-11-09 07:10:17,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 257 transitions, 748 flow [2024-11-09 07:10:17,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:17,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:17,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2397 transitions. [2024-11-09 07:10:17,006 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2024-11-09 07:10:17,006 INFO L175 Difference]: Start difference. First operand has 318 places, 262 transitions, 684 flow. Second operand 3 states and 2397 transitions. [2024-11-09 07:10:17,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 257 transitions, 748 flow [2024-11-09 07:10:17,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 257 transitions, 744 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:17,010 INFO L231 Difference]: Finished difference. Result has 312 places, 233 transitions, 622 flow [2024-11-09 07:10:17,010 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1034, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=622, PETRI_PLACES=312, PETRI_TRANSITIONS=233} [2024-11-09 07:10:17,010 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, -6 predicate places. [2024-11-09 07:10:17,010 INFO L471 AbstractCegarLoop]: Abstraction has has 312 places, 233 transitions, 622 flow [2024-11-09 07:10:17,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 786.0) internal successors, (2358), 3 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:17,011 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:17,011 INFO L204 CegarLoopForPetriNet]: trace histogram [27, 27, 27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:17,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2024-11-09 07:10:17,011 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2024-11-09 07:10:17,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:17,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1991235079, now seen corresponding path program 1 times [2024-11-09 07:10:17,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:17,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867241655] [2024-11-09 07:10:17,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:17,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:17,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:17,167 INFO L134 CoverageAnalysis]: Checked inductivity of 4758 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 4680 trivial. 0 not checked. [2024-11-09 07:10:17,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:17,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867241655] [2024-11-09 07:10:17,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867241655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:17,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:17,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:17,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841096296] [2024-11-09 07:10:17,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:17,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:17,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:17,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:17,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:17,242 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 863 out of 1034 [2024-11-09 07:10:17,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 233 transitions, 622 flow. Second operand has 5 states, 5 states have (on average 870.2) internal successors, (4351), 5 states have internal predecessors, (4351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:17,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:17,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 863 of 1034 [2024-11-09 07:10:17,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:17,351 INFO L124 PetriNetUnfolderBase]: 0/578 cut-off events. [2024-11-09 07:10:17,351 INFO L125 PetriNetUnfolderBase]: For 401/401 co-relation queries the response was YES. [2024-11-09 07:10:17,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 775 conditions, 578 events. 0/578 cut-off events. For 401/401 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 340 event pairs, 0 based on Foata normal form. 1/578 useless extension candidates. Maximal degree in co-relation 0. Up to 86 conditions per place. [2024-11-09 07:10:17,351 INFO L140 encePairwiseOnDemand]: 1029/1034 looper letters, 34 selfloop transitions, 2 changer transitions 3/235 dead transitions. [2024-11-09 07:10:17,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 235 transitions, 704 flow [2024-11-09 07:10:17,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:17,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:17,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4355 transitions. [2024-11-09 07:10:17,353 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8423597678916828 [2024-11-09 07:10:17,353 INFO L175 Difference]: Start difference. First operand has 312 places, 233 transitions, 622 flow. Second operand 5 states and 4355 transitions. [2024-11-09 07:10:17,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 235 transitions, 704 flow [2024-11-09 07:10:17,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 235 transitions, 703 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:17,357 INFO L231 Difference]: Finished difference. Result has 292 places, 232 transitions, 627 flow [2024-11-09 07:10:17,357 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1034, PETRI_DIFFERENCE_MINUEND_FLOW=621, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=627, PETRI_PLACES=292, PETRI_TRANSITIONS=232} [2024-11-09 07:10:17,357 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, -26 predicate places. [2024-11-09 07:10:17,357 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 232 transitions, 627 flow [2024-11-09 07:10:17,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 870.2) internal successors, (4351), 5 states have internal predecessors, (4351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:17,358 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:17,358 INFO L204 CegarLoopForPetriNet]: trace histogram [27, 27, 27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:17,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2024-11-09 07:10:17,359 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2024-11-09 07:10:17,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:17,359 INFO L85 PathProgramCache]: Analyzing trace with hash -2037282798, now seen corresponding path program 1 times [2024-11-09 07:10:17,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:17,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861018466] [2024-11-09 07:10:17,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:17,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:17,399 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:17,500 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:17,501 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:17,501 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 34 remaining) [2024-11-09 07:10:17,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (32 of 34 remaining) [2024-11-09 07:10:17,501 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (31 of 34 remaining) [2024-11-09 07:10:17,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (30 of 34 remaining) [2024-11-09 07:10:17,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (29 of 34 remaining) [2024-11-09 07:10:17,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (28 of 34 remaining) [2024-11-09 07:10:17,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 34 remaining) [2024-11-09 07:10:17,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 34 remaining) [2024-11-09 07:10:17,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 34 remaining) [2024-11-09 07:10:17,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 34 remaining) [2024-11-09 07:10:17,502 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 34 remaining) [2024-11-09 07:10:17,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 34 remaining) [2024-11-09 07:10:17,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 34 remaining) [2024-11-09 07:10:17,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 34 remaining) [2024-11-09 07:10:17,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 34 remaining) [2024-11-09 07:10:17,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 34 remaining) [2024-11-09 07:10:17,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 34 remaining) [2024-11-09 07:10:17,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 34 remaining) [2024-11-09 07:10:17,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 34 remaining) [2024-11-09 07:10:17,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 34 remaining) [2024-11-09 07:10:17,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 34 remaining) [2024-11-09 07:10:17,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 34 remaining) [2024-11-09 07:10:17,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 34 remaining) [2024-11-09 07:10:17,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 34 remaining) [2024-11-09 07:10:17,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 34 remaining) [2024-11-09 07:10:17,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 34 remaining) [2024-11-09 07:10:17,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 34 remaining) [2024-11-09 07:10:17,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 34 remaining) [2024-11-09 07:10:17,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 34 remaining) [2024-11-09 07:10:17,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 34 remaining) [2024-11-09 07:10:17,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 34 remaining) [2024-11-09 07:10:17,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 34 remaining) [2024-11-09 07:10:17,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 34 remaining) [2024-11-09 07:10:17,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 34 remaining) [2024-11-09 07:10:17,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2024-11-09 07:10:17,506 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:17,506 WARN L244 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:17,506 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2024-11-09 07:10:17,698 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:17,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1070 places, 1071 transitions, 3762 flow [2024-11-09 07:10:17,966 INFO L124 PetriNetUnfolderBase]: 142/1823 cut-off events. [2024-11-09 07:10:17,966 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2024-11-09 07:10:17,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2339 conditions, 1823 events. 142/1823 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4981 event pairs, 0 based on Foata normal form. 0/1593 useless extension candidates. Maximal degree in co-relation 2284. Up to 56 conditions per place. [2024-11-09 07:10:17,982 INFO L82 GeneralOperation]: Start removeDead. Operand has 1070 places, 1071 transitions, 3762 flow [2024-11-09 07:10:17,986 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 327 places, 274 transitions, 1361 flow [2024-11-09 07:10:17,986 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:17,986 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:17,986 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-11-09 07:10:17,987 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:17,987 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:17,987 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:17,987 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:17,987 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:17,988 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-09 07:10:17,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:17,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1106070787, now seen corresponding path program 1 times [2024-11-09 07:10:17,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:17,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656670381] [2024-11-09 07:10:17,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:17,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:18,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:18,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:18,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:18,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656670381] [2024-11-09 07:10:18,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656670381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:18,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:18,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:18,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377965912] [2024-11-09 07:10:18,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:18,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:18,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:18,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:18,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:18,095 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 869 out of 1071 [2024-11-09 07:10:18,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 274 transitions, 1361 flow. Second operand has 3 states, 3 states have (on average 870.3333333333334) internal successors, (2611), 3 states have internal predecessors, (2611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:18,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:18,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 869 of 1071 [2024-11-09 07:10:18,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:18,327 INFO L124 PetriNetUnfolderBase]: 57/1401 cut-off events. [2024-11-09 07:10:18,327 INFO L125 PetriNetUnfolderBase]: For 4033/4033 co-relation queries the response was YES. [2024-11-09 07:10:18,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2095 conditions, 1401 events. 57/1401 cut-off events. For 4033/4033 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3923 event pairs, 28 based on Foata normal form. 57/1341 useless extension candidates. Maximal degree in co-relation 1978. Up to 202 conditions per place. [2024-11-09 07:10:18,343 INFO L140 encePairwiseOnDemand]: 1065/1071 looper letters, 37 selfloop transitions, 2 changer transitions 1/270 dead transitions. [2024-11-09 07:10:18,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 270 transitions, 1431 flow [2024-11-09 07:10:18,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:18,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:18,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2650 transitions. [2024-11-09 07:10:18,345 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8247743541861189 [2024-11-09 07:10:18,345 INFO L175 Difference]: Start difference. First operand has 327 places, 274 transitions, 1361 flow. Second operand 3 states and 2650 transitions. [2024-11-09 07:10:18,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 270 transitions, 1431 flow [2024-11-09 07:10:18,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 270 transitions, 780 flow, removed 325 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:18,354 INFO L231 Difference]: Finished difference. Result has 327 places, 269 transitions, 704 flow [2024-11-09 07:10:18,354 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1071, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=704, PETRI_PLACES=327, PETRI_TRANSITIONS=269} [2024-11-09 07:10:18,354 INFO L277 CegarLoopForPetriNet]: 327 programPoint places, 0 predicate places. [2024-11-09 07:10:18,355 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 269 transitions, 704 flow [2024-11-09 07:10:18,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 870.3333333333334) internal successors, (2611), 3 states have internal predecessors, (2611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:18,355 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:18,355 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] [2024-11-09 07:10:18,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2024-11-09 07:10:18,356 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-09 07:10:18,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:18,356 INFO L85 PathProgramCache]: Analyzing trace with hash -567547066, now seen corresponding path program 1 times [2024-11-09 07:10:18,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:18,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413304934] [2024-11-09 07:10:18,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:18,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:18,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:18,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:18,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413304934] [2024-11-09 07:10:18,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413304934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:18,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:18,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:18,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415794150] [2024-11-09 07:10:18,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:18,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:18,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:18,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:18,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:18,449 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 813 out of 1071 [2024-11-09 07:10:18,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 269 transitions, 704 flow. Second operand has 3 states, 3 states have (on average 814.0) internal successors, (2442), 3 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:18,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:18,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 813 of 1071 [2024-11-09 07:10:18,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:18,661 INFO L124 PetriNetUnfolderBase]: 29/1257 cut-off events. [2024-11-09 07:10:18,662 INFO L125 PetriNetUnfolderBase]: For 431/431 co-relation queries the response was YES. [2024-11-09 07:10:18,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1571 conditions, 1257 events. 29/1257 cut-off events. For 431/431 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2926 event pairs, 0 based on Foata normal form. 28/1228 useless extension candidates. Maximal degree in co-relation 1520. Up to 145 conditions per place. [2024-11-09 07:10:18,672 INFO L140 encePairwiseOnDemand]: 1065/1071 looper letters, 35 selfloop transitions, 1 changer transitions 24/264 dead transitions. [2024-11-09 07:10:18,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 264 transitions, 770 flow [2024-11-09 07:10:18,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:18,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:18,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2482 transitions. [2024-11-09 07:10:18,674 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7724867724867724 [2024-11-09 07:10:18,674 INFO L175 Difference]: Start difference. First operand has 327 places, 269 transitions, 704 flow. Second operand 3 states and 2482 transitions. [2024-11-09 07:10:18,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 264 transitions, 770 flow [2024-11-09 07:10:18,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 264 transitions, 766 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:18,677 INFO L231 Difference]: Finished difference. Result has 321 places, 240 transitions, 642 flow [2024-11-09 07:10:18,677 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1071, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=642, PETRI_PLACES=321, PETRI_TRANSITIONS=240} [2024-11-09 07:10:18,678 INFO L277 CegarLoopForPetriNet]: 327 programPoint places, -6 predicate places. [2024-11-09 07:10:18,678 INFO L471 AbstractCegarLoop]: Abstraction has has 321 places, 240 transitions, 642 flow [2024-11-09 07:10:18,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 814.0) internal successors, (2442), 3 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:18,678 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:18,678 INFO L204 CegarLoopForPetriNet]: trace histogram [28, 28, 28, 28, 28, 28, 28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:18,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2024-11-09 07:10:18,679 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-09 07:10:18,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:18,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1786382521, now seen corresponding path program 1 times [2024-11-09 07:10:18,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:18,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891797274] [2024-11-09 07:10:18,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:18,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:18,813 INFO L134 CoverageAnalysis]: Checked inductivity of 5130 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 5049 trivial. 0 not checked. [2024-11-09 07:10:18,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:18,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891797274] [2024-11-09 07:10:18,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891797274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:18,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:18,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:18,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960714230] [2024-11-09 07:10:18,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:18,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:18,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:18,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:18,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:18,943 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 894 out of 1071 [2024-11-09 07:10:18,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 240 transitions, 642 flow. Second operand has 5 states, 5 states have (on average 901.4) internal successors, (4507), 5 states have internal predecessors, (4507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:18,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:18,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 894 of 1071 [2024-11-09 07:10:18,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:19,122 INFO L124 PetriNetUnfolderBase]: 0/598 cut-off events. [2024-11-09 07:10:19,122 INFO L125 PetriNetUnfolderBase]: For 430/430 co-relation queries the response was YES. [2024-11-09 07:10:19,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 802 conditions, 598 events. 0/598 cut-off events. For 430/430 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 352 event pairs, 0 based on Foata normal form. 1/598 useless extension candidates. Maximal degree in co-relation 0. Up to 89 conditions per place. [2024-11-09 07:10:19,123 INFO L140 encePairwiseOnDemand]: 1066/1071 looper letters, 35 selfloop transitions, 2 changer transitions 3/242 dead transitions. [2024-11-09 07:10:19,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 242 transitions, 726 flow [2024-11-09 07:10:19,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:19,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:19,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4511 transitions. [2024-11-09 07:10:19,127 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.842390289449113 [2024-11-09 07:10:19,127 INFO L175 Difference]: Start difference. First operand has 321 places, 240 transitions, 642 flow. Second operand 5 states and 4511 transitions. [2024-11-09 07:10:19,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 242 transitions, 726 flow [2024-11-09 07:10:19,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 242 transitions, 725 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:19,130 INFO L231 Difference]: Finished difference. Result has 301 places, 239 transitions, 647 flow [2024-11-09 07:10:19,130 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1071, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=647, PETRI_PLACES=301, PETRI_TRANSITIONS=239} [2024-11-09 07:10:19,130 INFO L277 CegarLoopForPetriNet]: 327 programPoint places, -26 predicate places. [2024-11-09 07:10:19,130 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 239 transitions, 647 flow [2024-11-09 07:10:19,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 901.4) internal successors, (4507), 5 states have internal predecessors, (4507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:19,131 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:19,131 INFO L204 CegarLoopForPetriNet]: trace histogram [28, 28, 28, 28, 28, 28, 28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:19,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2024-11-09 07:10:19,131 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-09 07:10:19,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:19,131 INFO L85 PathProgramCache]: Analyzing trace with hash -262441629, now seen corresponding path program 1 times [2024-11-09 07:10:19,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:19,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785279115] [2024-11-09 07:10:19,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:19,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:19,174 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:19,286 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:19,286 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:19,286 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 35 remaining) [2024-11-09 07:10:19,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 35 remaining) [2024-11-09 07:10:19,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 35 remaining) [2024-11-09 07:10:19,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 35 remaining) [2024-11-09 07:10:19,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 35 remaining) [2024-11-09 07:10:19,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 35 remaining) [2024-11-09 07:10:19,287 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 35 remaining) [2024-11-09 07:10:19,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 35 remaining) [2024-11-09 07:10:19,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 35 remaining) [2024-11-09 07:10:19,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 35 remaining) [2024-11-09 07:10:19,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 35 remaining) [2024-11-09 07:10:19,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 35 remaining) [2024-11-09 07:10:19,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 35 remaining) [2024-11-09 07:10:19,288 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 35 remaining) [2024-11-09 07:10:19,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 35 remaining) [2024-11-09 07:10:19,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 35 remaining) [2024-11-09 07:10:19,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 35 remaining) [2024-11-09 07:10:19,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 35 remaining) [2024-11-09 07:10:19,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 35 remaining) [2024-11-09 07:10:19,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 35 remaining) [2024-11-09 07:10:19,289 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 35 remaining) [2024-11-09 07:10:19,290 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 35 remaining) [2024-11-09 07:10:19,290 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 35 remaining) [2024-11-09 07:10:19,290 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 35 remaining) [2024-11-09 07:10:19,290 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 35 remaining) [2024-11-09 07:10:19,290 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 35 remaining) [2024-11-09 07:10:19,290 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 35 remaining) [2024-11-09 07:10:19,290 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 35 remaining) [2024-11-09 07:10:19,290 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 35 remaining) [2024-11-09 07:10:19,290 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 35 remaining) [2024-11-09 07:10:19,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 35 remaining) [2024-11-09 07:10:19,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 35 remaining) [2024-11-09 07:10:19,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 35 remaining) [2024-11-09 07:10:19,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 35 remaining) [2024-11-09 07:10:19,291 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 35 remaining) [2024-11-09 07:10:19,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2024-11-09 07:10:19,291 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:19,291 WARN L244 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:19,291 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2024-11-09 07:10:19,410 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:19,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1107 places, 1108 transitions, 3952 flow [2024-11-09 07:10:19,876 INFO L124 PetriNetUnfolderBase]: 147/1887 cut-off events. [2024-11-09 07:10:19,877 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2024-11-09 07:10:19,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2436 conditions, 1887 events. 147/1887 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5372 event pairs, 0 based on Foata normal form. 0/1649 useless extension candidates. Maximal degree in co-relation 2379. Up to 58 conditions per place. [2024-11-09 07:10:19,893 INFO L82 GeneralOperation]: Start removeDead. Operand has 1107 places, 1108 transitions, 3952 flow [2024-11-09 07:10:19,896 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 336 places, 281 transitions, 1433 flow [2024-11-09 07:10:19,897 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:19,897 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:19,897 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-11-09 07:10:19,899 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:19,899 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:19,899 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:19,899 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:19,899 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:19,899 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-09 07:10:19,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:19,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1266688259, now seen corresponding path program 1 times [2024-11-09 07:10:19,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:19,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278089650] [2024-11-09 07:10:19,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:19,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:19,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:19,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:19,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278089650] [2024-11-09 07:10:19,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278089650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:19,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:19,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:19,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876971909] [2024-11-09 07:10:19,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:19,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:19,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:19,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:19,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:20,039 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 899 out of 1108 [2024-11-09 07:10:20,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 281 transitions, 1433 flow. Second operand has 3 states, 3 states have (on average 900.3333333333334) internal successors, (2701), 3 states have internal predecessors, (2701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:20,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:20,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 899 of 1108 [2024-11-09 07:10:20,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:20,402 INFO L124 PetriNetUnfolderBase]: 59/1450 cut-off events. [2024-11-09 07:10:20,402 INFO L125 PetriNetUnfolderBase]: For 4467/4467 co-relation queries the response was YES. [2024-11-09 07:10:20,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2183 conditions, 1450 events. 59/1450 cut-off events. For 4467/4467 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3991 event pairs, 29 based on Foata normal form. 30/1359 useless extension candidates. Maximal degree in co-relation 2064. Up to 209 conditions per place. [2024-11-09 07:10:20,419 INFO L140 encePairwiseOnDemand]: 1102/1108 looper letters, 38 selfloop transitions, 2 changer transitions 1/277 dead transitions. [2024-11-09 07:10:20,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 277 transitions, 1505 flow [2024-11-09 07:10:20,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:20,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:20,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2741 transitions. [2024-11-09 07:10:20,421 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8246089049338147 [2024-11-09 07:10:20,421 INFO L175 Difference]: Start difference. First operand has 336 places, 281 transitions, 1433 flow. Second operand 3 states and 2741 transitions. [2024-11-09 07:10:20,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 277 transitions, 1505 flow [2024-11-09 07:10:20,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 277 transitions, 802 flow, removed 351 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:20,432 INFO L231 Difference]: Finished difference. Result has 336 places, 276 transitions, 724 flow [2024-11-09 07:10:20,432 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1108, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=724, PETRI_PLACES=336, PETRI_TRANSITIONS=276} [2024-11-09 07:10:20,432 INFO L277 CegarLoopForPetriNet]: 336 programPoint places, 0 predicate places. [2024-11-09 07:10:20,432 INFO L471 AbstractCegarLoop]: Abstraction has has 336 places, 276 transitions, 724 flow [2024-11-09 07:10:20,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 900.3333333333334) internal successors, (2701), 3 states have internal predecessors, (2701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:20,433 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:20,433 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] [2024-11-09 07:10:20,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2024-11-09 07:10:20,433 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-09 07:10:20,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:20,434 INFO L85 PathProgramCache]: Analyzing trace with hash 2084385862, now seen corresponding path program 1 times [2024-11-09 07:10:20,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:20,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944274603] [2024-11-09 07:10:20,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:20,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:20,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:20,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:20,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944274603] [2024-11-09 07:10:20,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944274603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:20,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:20,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:20,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917041152] [2024-11-09 07:10:20,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:20,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:20,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:20,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:20,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:20,566 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 841 out of 1108 [2024-11-09 07:10:20,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 276 transitions, 724 flow. Second operand has 3 states, 3 states have (on average 842.0) internal successors, (2526), 3 states have internal predecessors, (2526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:20,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:20,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 841 of 1108 [2024-11-09 07:10:20,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:20,925 INFO L124 PetriNetUnfolderBase]: 30/1301 cut-off events. [2024-11-09 07:10:20,925 INFO L125 PetriNetUnfolderBase]: For 461/461 co-relation queries the response was YES. [2024-11-09 07:10:20,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1626 conditions, 1301 events. 30/1301 cut-off events. For 461/461 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2975 event pairs, 0 based on Foata normal form. 29/1271 useless extension candidates. Maximal degree in co-relation 1574. Up to 150 conditions per place. [2024-11-09 07:10:20,939 INFO L140 encePairwiseOnDemand]: 1102/1108 looper letters, 36 selfloop transitions, 1 changer transitions 24/271 dead transitions. [2024-11-09 07:10:20,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 271 transitions, 792 flow [2024-11-09 07:10:20,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:20,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:20,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2567 transitions. [2024-11-09 07:10:20,941 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7722623345367028 [2024-11-09 07:10:20,942 INFO L175 Difference]: Start difference. First operand has 336 places, 276 transitions, 724 flow. Second operand 3 states and 2567 transitions. [2024-11-09 07:10:20,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 271 transitions, 792 flow [2024-11-09 07:10:20,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 271 transitions, 788 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:20,946 INFO L231 Difference]: Finished difference. Result has 330 places, 247 transitions, 662 flow [2024-11-09 07:10:20,946 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1108, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=662, PETRI_PLACES=330, PETRI_TRANSITIONS=247} [2024-11-09 07:10:20,947 INFO L277 CegarLoopForPetriNet]: 336 programPoint places, -6 predicate places. [2024-11-09 07:10:20,947 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 247 transitions, 662 flow [2024-11-09 07:10:20,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 842.0) internal successors, (2526), 3 states have internal predecessors, (2526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:20,947 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:20,947 INFO L204 CegarLoopForPetriNet]: trace histogram [29, 29, 29, 29, 29, 29, 29, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:20,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2024-11-09 07:10:20,948 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-09 07:10:20,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:20,948 INFO L85 PathProgramCache]: Analyzing trace with hash -669616845, now seen corresponding path program 1 times [2024-11-09 07:10:20,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:20,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279657304] [2024-11-09 07:10:20,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:20,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:21,144 INFO L134 CoverageAnalysis]: Checked inductivity of 5516 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 5432 trivial. 0 not checked. [2024-11-09 07:10:21,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:21,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279657304] [2024-11-09 07:10:21,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279657304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:21,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:21,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:21,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587989742] [2024-11-09 07:10:21,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:21,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:21,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:21,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:21,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:21,257 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 925 out of 1108 [2024-11-09 07:10:21,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 247 transitions, 662 flow. Second operand has 5 states, 5 states have (on average 932.6) internal successors, (4663), 5 states have internal predecessors, (4663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:21,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:21,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 925 of 1108 [2024-11-09 07:10:21,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:21,463 INFO L124 PetriNetUnfolderBase]: 0/618 cut-off events. [2024-11-09 07:10:21,463 INFO L125 PetriNetUnfolderBase]: For 460/460 co-relation queries the response was YES. [2024-11-09 07:10:21,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 829 conditions, 618 events. 0/618 cut-off events. For 460/460 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 363 event pairs, 0 based on Foata normal form. 1/618 useless extension candidates. Maximal degree in co-relation 0. Up to 92 conditions per place. [2024-11-09 07:10:21,464 INFO L140 encePairwiseOnDemand]: 1103/1108 looper letters, 36 selfloop transitions, 2 changer transitions 3/249 dead transitions. [2024-11-09 07:10:21,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 249 transitions, 748 flow [2024-11-09 07:10:21,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:21,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:21,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4667 transitions. [2024-11-09 07:10:21,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8424187725631769 [2024-11-09 07:10:21,468 INFO L175 Difference]: Start difference. First operand has 330 places, 247 transitions, 662 flow. Second operand 5 states and 4667 transitions. [2024-11-09 07:10:21,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 249 transitions, 748 flow [2024-11-09 07:10:21,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 249 transitions, 747 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:21,472 INFO L231 Difference]: Finished difference. Result has 310 places, 246 transitions, 667 flow [2024-11-09 07:10:21,472 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1108, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=667, PETRI_PLACES=310, PETRI_TRANSITIONS=246} [2024-11-09 07:10:21,473 INFO L277 CegarLoopForPetriNet]: 336 programPoint places, -26 predicate places. [2024-11-09 07:10:21,473 INFO L471 AbstractCegarLoop]: Abstraction has has 310 places, 246 transitions, 667 flow [2024-11-09 07:10:21,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 932.6) internal successors, (4663), 5 states have internal predecessors, (4663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:21,474 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:21,474 INFO L204 CegarLoopForPetriNet]: trace histogram [29, 29, 29, 29, 29, 29, 29, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:21,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2024-11-09 07:10:21,474 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-09 07:10:21,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:21,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1068415739, now seen corresponding path program 1 times [2024-11-09 07:10:21,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:21,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957305118] [2024-11-09 07:10:21,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:21,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:21,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:21,537 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:21,627 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:21,627 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:21,627 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2024-11-09 07:10:21,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2024-11-09 07:10:21,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2024-11-09 07:10:21,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2024-11-09 07:10:21,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2024-11-09 07:10:21,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2024-11-09 07:10:21,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 36 remaining) [2024-11-09 07:10:21,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2024-11-09 07:10:21,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2024-11-09 07:10:21,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2024-11-09 07:10:21,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2024-11-09 07:10:21,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2024-11-09 07:10:21,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2024-11-09 07:10:21,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2024-11-09 07:10:21,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2024-11-09 07:10:21,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2024-11-09 07:10:21,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2024-11-09 07:10:21,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2024-11-09 07:10:21,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2024-11-09 07:10:21,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2024-11-09 07:10:21,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2024-11-09 07:10:21,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2024-11-09 07:10:21,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2024-11-09 07:10:21,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2024-11-09 07:10:21,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2024-11-09 07:10:21,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2024-11-09 07:10:21,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2024-11-09 07:10:21,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2024-11-09 07:10:21,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2024-11-09 07:10:21,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2024-11-09 07:10:21,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2024-11-09 07:10:21,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2024-11-09 07:10:21,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2024-11-09 07:10:21,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2024-11-09 07:10:21,631 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2024-11-09 07:10:21,631 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2024-11-09 07:10:21,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2024-11-09 07:10:21,631 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:21,631 WARN L244 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:21,631 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2024-11-09 07:10:21,752 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:21,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1144 places, 1145 transitions, 4146 flow [2024-11-09 07:10:22,066 INFO L124 PetriNetUnfolderBase]: 152/1951 cut-off events. [2024-11-09 07:10:22,066 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2024-11-09 07:10:22,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2534 conditions, 1951 events. 152/1951 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5450 event pairs, 0 based on Foata normal form. 0/1705 useless extension candidates. Maximal degree in co-relation 2475. Up to 60 conditions per place. [2024-11-09 07:10:22,087 INFO L82 GeneralOperation]: Start removeDead. Operand has 1144 places, 1145 transitions, 4146 flow [2024-11-09 07:10:22,091 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 345 places, 288 transitions, 1507 flow [2024-11-09 07:10:22,091 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:22,091 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:22,091 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-11-09 07:10:22,092 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:22,093 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:22,093 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:22,093 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:22,093 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:22,093 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-09 07:10:22,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:22,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1378400771, now seen corresponding path program 1 times [2024-11-09 07:10:22,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:22,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039789855] [2024-11-09 07:10:22,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:22,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:22,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:22,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:22,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039789855] [2024-11-09 07:10:22,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039789855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:22,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:22,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:22,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884638142] [2024-11-09 07:10:22,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:22,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:22,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:22,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:22,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:22,293 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 929 out of 1145 [2024-11-09 07:10:22,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 288 transitions, 1507 flow. Second operand has 3 states, 3 states have (on average 930.3333333333334) internal successors, (2791), 3 states have internal predecessors, (2791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:22,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:22,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 929 of 1145 [2024-11-09 07:10:22,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:22,559 INFO L124 PetriNetUnfolderBase]: 61/1499 cut-off events. [2024-11-09 07:10:22,559 INFO L125 PetriNetUnfolderBase]: For 4931/4931 co-relation queries the response was YES. [2024-11-09 07:10:22,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2272 conditions, 1499 events. 61/1499 cut-off events. For 4931/4931 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4133 event pairs, 30 based on Foata normal form. 31/1405 useless extension candidates. Maximal degree in co-relation 2151. Up to 216 conditions per place. [2024-11-09 07:10:22,576 INFO L140 encePairwiseOnDemand]: 1139/1145 looper letters, 39 selfloop transitions, 2 changer transitions 1/284 dead transitions. [2024-11-09 07:10:22,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 284 transitions, 1581 flow [2024-11-09 07:10:22,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:22,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:22,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2832 transitions. [2024-11-09 07:10:22,577 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8244541484716157 [2024-11-09 07:10:22,577 INFO L175 Difference]: Start difference. First operand has 345 places, 288 transitions, 1507 flow. Second operand 3 states and 2832 transitions. [2024-11-09 07:10:22,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 284 transitions, 1581 flow [2024-11-09 07:10:22,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 284 transitions, 824 flow, removed 378 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:22,586 INFO L231 Difference]: Finished difference. Result has 345 places, 283 transitions, 744 flow [2024-11-09 07:10:22,587 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1145, PETRI_DIFFERENCE_MINUEND_FLOW=742, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=744, PETRI_PLACES=345, PETRI_TRANSITIONS=283} [2024-11-09 07:10:22,587 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, 0 predicate places. [2024-11-09 07:10:22,587 INFO L471 AbstractCegarLoop]: Abstraction has has 345 places, 283 transitions, 744 flow [2024-11-09 07:10:22,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 930.3333333333334) internal successors, (2791), 3 states have internal predecessors, (2791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:22,587 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:22,587 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] [2024-11-09 07:10:22,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2024-11-09 07:10:22,588 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-09 07:10:22,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:22,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1561011078, now seen corresponding path program 1 times [2024-11-09 07:10:22,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:22,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667134241] [2024-11-09 07:10:22,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:22,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:22,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:22,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:22,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667134241] [2024-11-09 07:10:22,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667134241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:22,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:22,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:22,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314773109] [2024-11-09 07:10:22,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:22,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:22,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:22,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:22,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:22,688 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 869 out of 1145 [2024-11-09 07:10:22,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 283 transitions, 744 flow. Second operand has 3 states, 3 states have (on average 870.0) internal successors, (2610), 3 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:22,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:22,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 869 of 1145 [2024-11-09 07:10:22,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:22,921 INFO L124 PetriNetUnfolderBase]: 31/1345 cut-off events. [2024-11-09 07:10:22,921 INFO L125 PetriNetUnfolderBase]: For 492/492 co-relation queries the response was YES. [2024-11-09 07:10:22,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1681 conditions, 1345 events. 31/1345 cut-off events. For 492/492 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3075 event pairs, 0 based on Foata normal form. 30/1314 useless extension candidates. Maximal degree in co-relation 1628. Up to 155 conditions per place. [2024-11-09 07:10:22,933 INFO L140 encePairwiseOnDemand]: 1139/1145 looper letters, 37 selfloop transitions, 1 changer transitions 24/278 dead transitions. [2024-11-09 07:10:22,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 278 transitions, 814 flow [2024-11-09 07:10:22,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:22,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:22,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2652 transitions. [2024-11-09 07:10:22,935 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7720524017467248 [2024-11-09 07:10:22,935 INFO L175 Difference]: Start difference. First operand has 345 places, 283 transitions, 744 flow. Second operand 3 states and 2652 transitions. [2024-11-09 07:10:22,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 278 transitions, 814 flow [2024-11-09 07:10:22,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 278 transitions, 810 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:22,938 INFO L231 Difference]: Finished difference. Result has 339 places, 254 transitions, 682 flow [2024-11-09 07:10:22,938 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1145, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=682, PETRI_PLACES=339, PETRI_TRANSITIONS=254} [2024-11-09 07:10:22,939 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, -6 predicate places. [2024-11-09 07:10:22,939 INFO L471 AbstractCegarLoop]: Abstraction has has 339 places, 254 transitions, 682 flow [2024-11-09 07:10:22,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 870.0) internal successors, (2610), 3 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:22,939 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:22,939 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:22,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2024-11-09 07:10:22,939 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-09 07:10:22,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:22,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1702375723, now seen corresponding path program 1 times [2024-11-09 07:10:22,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:22,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840699449] [2024-11-09 07:10:22,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:22,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:23,077 INFO L134 CoverageAnalysis]: Checked inductivity of 5916 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 5829 trivial. 0 not checked. [2024-11-09 07:10:23,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:23,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840699449] [2024-11-09 07:10:23,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840699449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:23,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:23,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:23,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573829783] [2024-11-09 07:10:23,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:23,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:23,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:23,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:23,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:23,184 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 956 out of 1145 [2024-11-09 07:10:23,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 254 transitions, 682 flow. Second operand has 5 states, 5 states have (on average 963.8) internal successors, (4819), 5 states have internal predecessors, (4819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:23,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:23,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 956 of 1145 [2024-11-09 07:10:23,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:23,310 INFO L124 PetriNetUnfolderBase]: 0/638 cut-off events. [2024-11-09 07:10:23,310 INFO L125 PetriNetUnfolderBase]: For 491/491 co-relation queries the response was YES. [2024-11-09 07:10:23,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 856 conditions, 638 events. 0/638 cut-off events. For 491/491 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 376 event pairs, 0 based on Foata normal form. 1/638 useless extension candidates. Maximal degree in co-relation 0. Up to 95 conditions per place. [2024-11-09 07:10:23,311 INFO L140 encePairwiseOnDemand]: 1140/1145 looper letters, 37 selfloop transitions, 2 changer transitions 3/256 dead transitions. [2024-11-09 07:10:23,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 256 transitions, 770 flow [2024-11-09 07:10:23,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:23,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:23,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4823 transitions. [2024-11-09 07:10:23,313 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8424454148471616 [2024-11-09 07:10:23,313 INFO L175 Difference]: Start difference. First operand has 339 places, 254 transitions, 682 flow. Second operand 5 states and 4823 transitions. [2024-11-09 07:10:23,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 256 transitions, 770 flow [2024-11-09 07:10:23,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 256 transitions, 769 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:23,316 INFO L231 Difference]: Finished difference. Result has 319 places, 253 transitions, 687 flow [2024-11-09 07:10:23,316 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1145, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=687, PETRI_PLACES=319, PETRI_TRANSITIONS=253} [2024-11-09 07:10:23,316 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, -26 predicate places. [2024-11-09 07:10:23,317 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 253 transitions, 687 flow [2024-11-09 07:10:23,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 963.8) internal successors, (4819), 5 states have internal predecessors, (4819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:23,317 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:23,317 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:23,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2024-11-09 07:10:23,318 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-09 07:10:23,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:23,318 INFO L85 PathProgramCache]: Analyzing trace with hash 826427514, now seen corresponding path program 1 times [2024-11-09 07:10:23,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:23,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690109445] [2024-11-09 07:10:23,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:23,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:23,369 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:23,455 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:23,455 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:23,455 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2024-11-09 07:10:23,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2024-11-09 07:10:23,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2024-11-09 07:10:23,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2024-11-09 07:10:23,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2024-11-09 07:10:23,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2024-11-09 07:10:23,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 37 remaining) [2024-11-09 07:10:23,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2024-11-09 07:10:23,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2024-11-09 07:10:23,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2024-11-09 07:10:23,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2024-11-09 07:10:23,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2024-11-09 07:10:23,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2024-11-09 07:10:23,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2024-11-09 07:10:23,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2024-11-09 07:10:23,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2024-11-09 07:10:23,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2024-11-09 07:10:23,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2024-11-09 07:10:23,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2024-11-09 07:10:23,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2024-11-09 07:10:23,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2024-11-09 07:10:23,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2024-11-09 07:10:23,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2024-11-09 07:10:23,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2024-11-09 07:10:23,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2024-11-09 07:10:23,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2024-11-09 07:10:23,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2024-11-09 07:10:23,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2024-11-09 07:10:23,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2024-11-09 07:10:23,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2024-11-09 07:10:23,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2024-11-09 07:10:23,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2024-11-09 07:10:23,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2024-11-09 07:10:23,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2024-11-09 07:10:23,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2024-11-09 07:10:23,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2024-11-09 07:10:23,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2024-11-09 07:10:23,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2024-11-09 07:10:23,459 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:23,460 WARN L244 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:23,460 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2024-11-09 07:10:23,576 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:23,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1181 places, 1182 transitions, 4344 flow [2024-11-09 07:10:23,897 INFO L124 PetriNetUnfolderBase]: 157/2015 cut-off events. [2024-11-09 07:10:23,897 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2024-11-09 07:10:23,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2633 conditions, 2015 events. 157/2015 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5608 event pairs, 0 based on Foata normal form. 0/1761 useless extension candidates. Maximal degree in co-relation 2572. Up to 62 conditions per place. [2024-11-09 07:10:23,919 INFO L82 GeneralOperation]: Start removeDead. Operand has 1181 places, 1182 transitions, 4344 flow [2024-11-09 07:10:23,923 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 354 places, 295 transitions, 1583 flow [2024-11-09 07:10:23,923 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:23,923 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:23,923 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-11-09 07:10:23,924 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:23,924 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:23,925 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:23,925 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:23,925 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:23,925 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-09 07:10:23,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:23,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1441208323, now seen corresponding path program 1 times [2024-11-09 07:10:23,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:23,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623950771] [2024-11-09 07:10:23,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:23,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:23,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:23,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:23,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623950771] [2024-11-09 07:10:23,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623950771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:23,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:23,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:23,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393988899] [2024-11-09 07:10:23,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:23,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:23,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:23,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:23,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:24,037 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 959 out of 1182 [2024-11-09 07:10:24,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 295 transitions, 1583 flow. Second operand has 3 states, 3 states have (on average 960.3333333333334) internal successors, (2881), 3 states have internal predecessors, (2881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:24,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:24,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 959 of 1182 [2024-11-09 07:10:24,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:24,419 INFO L124 PetriNetUnfolderBase]: 63/1548 cut-off events. [2024-11-09 07:10:24,419 INFO L125 PetriNetUnfolderBase]: For 5426/5426 co-relation queries the response was YES. [2024-11-09 07:10:24,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2362 conditions, 1548 events. 63/1548 cut-off events. For 5426/5426 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4365 event pairs, 31 based on Foata normal form. 63/1482 useless extension candidates. Maximal degree in co-relation 2239. Up to 223 conditions per place. [2024-11-09 07:10:24,431 INFO L140 encePairwiseOnDemand]: 1176/1182 looper letters, 40 selfloop transitions, 2 changer transitions 1/291 dead transitions. [2024-11-09 07:10:24,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 291 transitions, 1659 flow [2024-11-09 07:10:24,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:24,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:24,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2923 transitions. [2024-11-09 07:10:24,433 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8243090806542583 [2024-11-09 07:10:24,433 INFO L175 Difference]: Start difference. First operand has 354 places, 295 transitions, 1583 flow. Second operand 3 states and 2923 transitions. [2024-11-09 07:10:24,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 291 transitions, 1659 flow [2024-11-09 07:10:24,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 291 transitions, 846 flow, removed 406 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:24,442 INFO L231 Difference]: Finished difference. Result has 354 places, 290 transitions, 764 flow [2024-11-09 07:10:24,442 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1182, PETRI_DIFFERENCE_MINUEND_FLOW=762, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=764, PETRI_PLACES=354, PETRI_TRANSITIONS=290} [2024-11-09 07:10:24,442 INFO L277 CegarLoopForPetriNet]: 354 programPoint places, 0 predicate places. [2024-11-09 07:10:24,443 INFO L471 AbstractCegarLoop]: Abstraction has has 354 places, 290 transitions, 764 flow [2024-11-09 07:10:24,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 960.3333333333334) internal successors, (2881), 3 states have internal predecessors, (2881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:24,443 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:24,443 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] [2024-11-09 07:10:24,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2024-11-09 07:10:24,443 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-09 07:10:24,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:24,444 INFO L85 PathProgramCache]: Analyzing trace with hash -2137671418, now seen corresponding path program 1 times [2024-11-09 07:10:24,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:24,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338640840] [2024-11-09 07:10:24,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:24,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:24,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:24,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:24,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338640840] [2024-11-09 07:10:24,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338640840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:24,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:24,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:24,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761589090] [2024-11-09 07:10:24,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:24,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:24,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:24,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:24,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:24,548 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 897 out of 1182 [2024-11-09 07:10:24,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 290 transitions, 764 flow. Second operand has 3 states, 3 states have (on average 898.0) internal successors, (2694), 3 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:24,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:24,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 897 of 1182 [2024-11-09 07:10:24,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:24,797 INFO L124 PetriNetUnfolderBase]: 32/1389 cut-off events. [2024-11-09 07:10:24,797 INFO L125 PetriNetUnfolderBase]: For 524/524 co-relation queries the response was YES. [2024-11-09 07:10:24,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1736 conditions, 1389 events. 32/1389 cut-off events. For 524/524 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3277 event pairs, 0 based on Foata normal form. 31/1357 useless extension candidates. Maximal degree in co-relation 1682. Up to 160 conditions per place. [2024-11-09 07:10:24,811 INFO L140 encePairwiseOnDemand]: 1176/1182 looper letters, 38 selfloop transitions, 1 changer transitions 24/285 dead transitions. [2024-11-09 07:10:24,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 285 transitions, 836 flow [2024-11-09 07:10:24,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:24,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:24,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2737 transitions. [2024-11-09 07:10:24,812 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7718556119571348 [2024-11-09 07:10:24,812 INFO L175 Difference]: Start difference. First operand has 354 places, 290 transitions, 764 flow. Second operand 3 states and 2737 transitions. [2024-11-09 07:10:24,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 285 transitions, 836 flow [2024-11-09 07:10:24,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 285 transitions, 832 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:24,816 INFO L231 Difference]: Finished difference. Result has 348 places, 261 transitions, 702 flow [2024-11-09 07:10:24,816 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1182, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=702, PETRI_PLACES=348, PETRI_TRANSITIONS=261} [2024-11-09 07:10:24,816 INFO L277 CegarLoopForPetriNet]: 354 programPoint places, -6 predicate places. [2024-11-09 07:10:24,816 INFO L471 AbstractCegarLoop]: Abstraction has has 348 places, 261 transitions, 702 flow [2024-11-09 07:10:24,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 898.0) internal successors, (2694), 3 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:24,817 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:24,817 INFO L204 CegarLoopForPetriNet]: trace histogram [31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:24,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2024-11-09 07:10:24,817 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-09 07:10:24,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:24,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1171338097, now seen corresponding path program 1 times [2024-11-09 07:10:24,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:24,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503071481] [2024-11-09 07:10:24,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:24,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:24,930 INFO L134 CoverageAnalysis]: Checked inductivity of 6330 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 6240 trivial. 0 not checked. [2024-11-09 07:10:24,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:24,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503071481] [2024-11-09 07:10:24,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503071481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:24,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:24,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:24,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925858660] [2024-11-09 07:10:24,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:24,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:24,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:24,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:24,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:25,038 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 987 out of 1182 [2024-11-09 07:10:25,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 261 transitions, 702 flow. Second operand has 5 states, 5 states have (on average 995.0) internal successors, (4975), 5 states have internal predecessors, (4975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:25,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:25,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 987 of 1182 [2024-11-09 07:10:25,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:25,172 INFO L124 PetriNetUnfolderBase]: 0/658 cut-off events. [2024-11-09 07:10:25,172 INFO L125 PetriNetUnfolderBase]: For 523/523 co-relation queries the response was YES. [2024-11-09 07:10:25,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 883 conditions, 658 events. 0/658 cut-off events. For 523/523 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 387 event pairs, 0 based on Foata normal form. 1/658 useless extension candidates. Maximal degree in co-relation 0. Up to 98 conditions per place. [2024-11-09 07:10:25,173 INFO L140 encePairwiseOnDemand]: 1177/1182 looper letters, 38 selfloop transitions, 2 changer transitions 3/263 dead transitions. [2024-11-09 07:10:25,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 263 transitions, 792 flow [2024-11-09 07:10:25,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:25,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:25,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4979 transitions. [2024-11-09 07:10:25,175 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8424703891708968 [2024-11-09 07:10:25,175 INFO L175 Difference]: Start difference. First operand has 348 places, 261 transitions, 702 flow. Second operand 5 states and 4979 transitions. [2024-11-09 07:10:25,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 263 transitions, 792 flow [2024-11-09 07:10:25,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 263 transitions, 791 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:25,179 INFO L231 Difference]: Finished difference. Result has 328 places, 260 transitions, 707 flow [2024-11-09 07:10:25,179 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1182, PETRI_DIFFERENCE_MINUEND_FLOW=701, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=707, PETRI_PLACES=328, PETRI_TRANSITIONS=260} [2024-11-09 07:10:25,180 INFO L277 CegarLoopForPetriNet]: 354 programPoint places, -26 predicate places. [2024-11-09 07:10:25,180 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 260 transitions, 707 flow [2024-11-09 07:10:25,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 995.0) internal successors, (4975), 5 states have internal predecessors, (4975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:25,181 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:25,181 INFO L204 CegarLoopForPetriNet]: trace histogram [31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:25,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2024-11-09 07:10:25,181 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-09 07:10:25,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:25,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1430646144, now seen corresponding path program 1 times [2024-11-09 07:10:25,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:25,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590883420] [2024-11-09 07:10:25,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:25,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:25,240 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:25,345 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:25,345 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:25,345 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2024-11-09 07:10:25,345 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2024-11-09 07:10:25,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2024-11-09 07:10:25,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2024-11-09 07:10:25,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2024-11-09 07:10:25,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2024-11-09 07:10:25,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 38 remaining) [2024-11-09 07:10:25,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2024-11-09 07:10:25,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2024-11-09 07:10:25,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2024-11-09 07:10:25,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2024-11-09 07:10:25,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2024-11-09 07:10:25,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2024-11-09 07:10:25,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2024-11-09 07:10:25,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2024-11-09 07:10:25,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2024-11-09 07:10:25,346 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2024-11-09 07:10:25,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2024-11-09 07:10:25,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2024-11-09 07:10:25,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2024-11-09 07:10:25,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2024-11-09 07:10:25,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2024-11-09 07:10:25,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2024-11-09 07:10:25,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2024-11-09 07:10:25,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2024-11-09 07:10:25,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2024-11-09 07:10:25,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2024-11-09 07:10:25,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2024-11-09 07:10:25,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2024-11-09 07:10:25,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2024-11-09 07:10:25,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2024-11-09 07:10:25,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2024-11-09 07:10:25,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2024-11-09 07:10:25,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2024-11-09 07:10:25,347 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2024-11-09 07:10:25,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2024-11-09 07:10:25,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2024-11-09 07:10:25,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2024-11-09 07:10:25,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2024-11-09 07:10:25,348 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:25,348 WARN L244 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:25,348 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2024-11-09 07:10:25,473 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:25,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1218 places, 1219 transitions, 4546 flow [2024-11-09 07:10:25,841 INFO L124 PetriNetUnfolderBase]: 162/2079 cut-off events. [2024-11-09 07:10:25,841 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2024-11-09 07:10:25,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2733 conditions, 2079 events. 162/2079 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5956 event pairs, 0 based on Foata normal form. 0/1817 useless extension candidates. Maximal degree in co-relation 2670. Up to 64 conditions per place. [2024-11-09 07:10:25,865 INFO L82 GeneralOperation]: Start removeDead. Operand has 1218 places, 1219 transitions, 4546 flow [2024-11-09 07:10:25,869 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 363 places, 302 transitions, 1661 flow [2024-11-09 07:10:25,869 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:25,869 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:25,869 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-09 07:10:25,870 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:25,870 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:25,870 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:25,870 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:25,870 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:25,871 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-09 07:10:25,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:25,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1455110915, now seen corresponding path program 1 times [2024-11-09 07:10:25,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:25,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482894331] [2024-11-09 07:10:25,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:25,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:25,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:25,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:25,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482894331] [2024-11-09 07:10:25,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482894331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:25,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:25,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:25,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762872757] [2024-11-09 07:10:25,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:25,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:25,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:25,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:25,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:25,992 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 989 out of 1219 [2024-11-09 07:10:25,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 302 transitions, 1661 flow. Second operand has 3 states, 3 states have (on average 990.3333333333334) internal successors, (2971), 3 states have internal predecessors, (2971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:25,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:25,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 989 of 1219 [2024-11-09 07:10:25,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:26,302 INFO L124 PetriNetUnfolderBase]: 65/1597 cut-off events. [2024-11-09 07:10:26,302 INFO L125 PetriNetUnfolderBase]: For 5953/5953 co-relation queries the response was YES. [2024-11-09 07:10:26,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2453 conditions, 1597 events. 65/1597 cut-off events. For 5953/5953 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4392 event pairs, 32 based on Foata normal form. 33/1497 useless extension candidates. Maximal degree in co-relation 2328. Up to 230 conditions per place. [2024-11-09 07:10:26,320 INFO L140 encePairwiseOnDemand]: 1213/1219 looper letters, 41 selfloop transitions, 2 changer transitions 1/298 dead transitions. [2024-11-09 07:10:26,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 298 transitions, 1739 flow [2024-11-09 07:10:26,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:26,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:26,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3014 transitions. [2024-11-09 07:10:26,322 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.824172819250752 [2024-11-09 07:10:26,322 INFO L175 Difference]: Start difference. First operand has 363 places, 302 transitions, 1661 flow. Second operand 3 states and 3014 transitions. [2024-11-09 07:10:26,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 298 transitions, 1739 flow [2024-11-09 07:10:26,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 298 transitions, 868 flow, removed 435 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:26,332 INFO L231 Difference]: Finished difference. Result has 363 places, 297 transitions, 784 flow [2024-11-09 07:10:26,332 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1219, PETRI_DIFFERENCE_MINUEND_FLOW=782, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=784, PETRI_PLACES=363, PETRI_TRANSITIONS=297} [2024-11-09 07:10:26,333 INFO L277 CegarLoopForPetriNet]: 363 programPoint places, 0 predicate places. [2024-11-09 07:10:26,333 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 297 transitions, 784 flow [2024-11-09 07:10:26,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 990.3333333333334) internal successors, (2971), 3 states have internal predecessors, (2971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:26,333 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:26,333 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] [2024-11-09 07:10:26,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2024-11-09 07:10:26,333 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-09 07:10:26,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:26,333 INFO L85 PathProgramCache]: Analyzing trace with hash -421727034, now seen corresponding path program 1 times [2024-11-09 07:10:26,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:26,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850243393] [2024-11-09 07:10:26,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:26,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:26,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:26,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:26,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850243393] [2024-11-09 07:10:26,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850243393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:26,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:26,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:26,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782249311] [2024-11-09 07:10:26,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:26,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:26,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:26,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:26,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:26,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 925 out of 1219 [2024-11-09 07:10:26,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 297 transitions, 784 flow. Second operand has 3 states, 3 states have (on average 926.0) internal successors, (2778), 3 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:26,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:26,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 925 of 1219 [2024-11-09 07:10:26,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:26,822 INFO L124 PetriNetUnfolderBase]: 33/1433 cut-off events. [2024-11-09 07:10:26,822 INFO L125 PetriNetUnfolderBase]: For 557/557 co-relation queries the response was YES. [2024-11-09 07:10:26,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1791 conditions, 1433 events. 33/1433 cut-off events. For 557/557 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3261 event pairs, 0 based on Foata normal form. 32/1400 useless extension candidates. Maximal degree in co-relation 1736. Up to 165 conditions per place. [2024-11-09 07:10:26,829 INFO L140 encePairwiseOnDemand]: 1213/1219 looper letters, 39 selfloop transitions, 1 changer transitions 24/292 dead transitions. [2024-11-09 07:10:26,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 292 transitions, 858 flow [2024-11-09 07:10:26,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:26,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:26,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2822 transitions. [2024-11-09 07:10:26,831 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7716707683893902 [2024-11-09 07:10:26,831 INFO L175 Difference]: Start difference. First operand has 363 places, 297 transitions, 784 flow. Second operand 3 states and 2822 transitions. [2024-11-09 07:10:26,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 292 transitions, 858 flow [2024-11-09 07:10:26,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 292 transitions, 854 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:26,834 INFO L231 Difference]: Finished difference. Result has 357 places, 268 transitions, 722 flow [2024-11-09 07:10:26,835 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1219, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=722, PETRI_PLACES=357, PETRI_TRANSITIONS=268} [2024-11-09 07:10:26,835 INFO L277 CegarLoopForPetriNet]: 363 programPoint places, -6 predicate places. [2024-11-09 07:10:26,835 INFO L471 AbstractCegarLoop]: Abstraction has has 357 places, 268 transitions, 722 flow [2024-11-09 07:10:26,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 926.0) internal successors, (2778), 3 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:26,836 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:26,836 INFO L204 CegarLoopForPetriNet]: trace histogram [32, 32, 32, 32, 32, 32, 32, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:26,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2024-11-09 07:10:26,836 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-09 07:10:26,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:26,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1225873217, now seen corresponding path program 1 times [2024-11-09 07:10:26,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:26,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946267837] [2024-11-09 07:10:26,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:26,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:26,974 INFO L134 CoverageAnalysis]: Checked inductivity of 6758 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 6665 trivial. 0 not checked. [2024-11-09 07:10:26,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:26,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946267837] [2024-11-09 07:10:26,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946267837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:26,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:26,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:26,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048820001] [2024-11-09 07:10:26,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:26,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:26,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:26,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:26,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:27,093 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1018 out of 1219 [2024-11-09 07:10:27,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 268 transitions, 722 flow. Second operand has 5 states, 5 states have (on average 1026.2) internal successors, (5131), 5 states have internal predecessors, (5131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:27,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:27,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1018 of 1219 [2024-11-09 07:10:27,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:27,326 INFO L124 PetriNetUnfolderBase]: 0/678 cut-off events. [2024-11-09 07:10:27,326 INFO L125 PetriNetUnfolderBase]: For 556/556 co-relation queries the response was YES. [2024-11-09 07:10:27,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 910 conditions, 678 events. 0/678 cut-off events. For 556/556 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 399 event pairs, 0 based on Foata normal form. 1/678 useless extension candidates. Maximal degree in co-relation 0. Up to 101 conditions per place. [2024-11-09 07:10:27,328 INFO L140 encePairwiseOnDemand]: 1214/1219 looper letters, 39 selfloop transitions, 2 changer transitions 3/270 dead transitions. [2024-11-09 07:10:27,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 270 transitions, 814 flow [2024-11-09 07:10:27,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:27,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:27,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5135 transitions. [2024-11-09 07:10:27,331 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8424938474159147 [2024-11-09 07:10:27,331 INFO L175 Difference]: Start difference. First operand has 357 places, 268 transitions, 722 flow. Second operand 5 states and 5135 transitions. [2024-11-09 07:10:27,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 270 transitions, 814 flow [2024-11-09 07:10:27,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 270 transitions, 813 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:27,336 INFO L231 Difference]: Finished difference. Result has 337 places, 267 transitions, 727 flow [2024-11-09 07:10:27,336 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1219, PETRI_DIFFERENCE_MINUEND_FLOW=721, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=727, PETRI_PLACES=337, PETRI_TRANSITIONS=267} [2024-11-09 07:10:27,337 INFO L277 CegarLoopForPetriNet]: 363 programPoint places, -26 predicate places. [2024-11-09 07:10:27,337 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 267 transitions, 727 flow [2024-11-09 07:10:27,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1026.2) internal successors, (5131), 5 states have internal predecessors, (5131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:27,338 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:27,338 INFO L204 CegarLoopForPetriNet]: trace histogram [32, 32, 32, 32, 32, 32, 32, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:27,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2024-11-09 07:10:27,338 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-09 07:10:27,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:27,338 INFO L85 PathProgramCache]: Analyzing trace with hash 262035885, now seen corresponding path program 1 times [2024-11-09 07:10:27,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:27,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975412680] [2024-11-09 07:10:27,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:27,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:27,388 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:27,494 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:27,494 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:27,494 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2024-11-09 07:10:27,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2024-11-09 07:10:27,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2024-11-09 07:10:27,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2024-11-09 07:10:27,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2024-11-09 07:10:27,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2024-11-09 07:10:27,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 39 remaining) [2024-11-09 07:10:27,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2024-11-09 07:10:27,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2024-11-09 07:10:27,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2024-11-09 07:10:27,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2024-11-09 07:10:27,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2024-11-09 07:10:27,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2024-11-09 07:10:27,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2024-11-09 07:10:27,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2024-11-09 07:10:27,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2024-11-09 07:10:27,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2024-11-09 07:10:27,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2024-11-09 07:10:27,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2024-11-09 07:10:27,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2024-11-09 07:10:27,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2024-11-09 07:10:27,497 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2024-11-09 07:10:27,497 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2024-11-09 07:10:27,497 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2024-11-09 07:10:27,497 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2024-11-09 07:10:27,497 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2024-11-09 07:10:27,497 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2024-11-09 07:10:27,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2024-11-09 07:10:27,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2024-11-09 07:10:27,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2024-11-09 07:10:27,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2024-11-09 07:10:27,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2024-11-09 07:10:27,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2024-11-09 07:10:27,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2024-11-09 07:10:27,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2024-11-09 07:10:27,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2024-11-09 07:10:27,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2024-11-09 07:10:27,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2024-11-09 07:10:27,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2024-11-09 07:10:27,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2024-11-09 07:10:27,499 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:27,499 WARN L244 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:27,499 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2024-11-09 07:10:27,606 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:27,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1255 places, 1256 transitions, 4752 flow [2024-11-09 07:10:27,987 INFO L124 PetriNetUnfolderBase]: 167/2143 cut-off events. [2024-11-09 07:10:27,988 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2024-11-09 07:10:28,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2834 conditions, 2143 events. 167/2143 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5967 event pairs, 0 based on Foata normal form. 0/1873 useless extension candidates. Maximal degree in co-relation 2769. Up to 66 conditions per place. [2024-11-09 07:10:28,015 INFO L82 GeneralOperation]: Start removeDead. Operand has 1255 places, 1256 transitions, 4752 flow [2024-11-09 07:10:28,019 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 372 places, 309 transitions, 1741 flow [2024-11-09 07:10:28,020 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:28,020 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:28,020 INFO L334 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2024-11-09 07:10:28,022 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:28,022 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:28,022 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:28,022 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:28,022 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:28,022 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-09 07:10:28,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:28,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1420108547, now seen corresponding path program 1 times [2024-11-09 07:10:28,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:28,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964081129] [2024-11-09 07:10:28,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:28,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:28,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:28,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:28,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964081129] [2024-11-09 07:10:28,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964081129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:28,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:28,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:28,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774635185] [2024-11-09 07:10:28,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:28,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:28,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:28,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:28,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:28,146 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1019 out of 1256 [2024-11-09 07:10:28,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 309 transitions, 1741 flow. Second operand has 3 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:28,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:28,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1019 of 1256 [2024-11-09 07:10:28,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:28,470 INFO L124 PetriNetUnfolderBase]: 67/1646 cut-off events. [2024-11-09 07:10:28,470 INFO L125 PetriNetUnfolderBase]: For 6513/6513 co-relation queries the response was YES. [2024-11-09 07:10:28,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2545 conditions, 1646 events. 67/1646 cut-off events. For 6513/6513 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4619 event pairs, 33 based on Foata normal form. 67/1576 useless extension candidates. Maximal degree in co-relation 2418. Up to 237 conditions per place. [2024-11-09 07:10:28,491 INFO L140 encePairwiseOnDemand]: 1250/1256 looper letters, 42 selfloop transitions, 2 changer transitions 1/305 dead transitions. [2024-11-09 07:10:28,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 305 transitions, 1821 flow [2024-11-09 07:10:28,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:28,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:28,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3105 transitions. [2024-11-09 07:10:28,493 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8240445859872612 [2024-11-09 07:10:28,493 INFO L175 Difference]: Start difference. First operand has 372 places, 309 transitions, 1741 flow. Second operand 3 states and 3105 transitions. [2024-11-09 07:10:28,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 305 transitions, 1821 flow [2024-11-09 07:10:28,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 305 transitions, 890 flow, removed 465 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:28,504 INFO L231 Difference]: Finished difference. Result has 372 places, 304 transitions, 804 flow [2024-11-09 07:10:28,504 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1256, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=804, PETRI_PLACES=372, PETRI_TRANSITIONS=304} [2024-11-09 07:10:28,504 INFO L277 CegarLoopForPetriNet]: 372 programPoint places, 0 predicate places. [2024-11-09 07:10:28,504 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 304 transitions, 804 flow [2024-11-09 07:10:28,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:28,505 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:28,505 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] [2024-11-09 07:10:28,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2024-11-09 07:10:28,505 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-09 07:10:28,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:28,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1881090362, now seen corresponding path program 1 times [2024-11-09 07:10:28,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:28,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017438220] [2024-11-09 07:10:28,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:28,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:28,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:28,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:28,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017438220] [2024-11-09 07:10:28,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017438220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:28,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:28,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:28,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781888126] [2024-11-09 07:10:28,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:28,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:28,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:28,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:28,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:28,607 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 953 out of 1256 [2024-11-09 07:10:28,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 304 transitions, 804 flow. Second operand has 3 states, 3 states have (on average 954.0) internal successors, (2862), 3 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:28,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:28,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 953 of 1256 [2024-11-09 07:10:28,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:28,898 INFO L124 PetriNetUnfolderBase]: 34/1477 cut-off events. [2024-11-09 07:10:28,898 INFO L125 PetriNetUnfolderBase]: For 591/591 co-relation queries the response was YES. [2024-11-09 07:10:28,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1846 conditions, 1477 events. 34/1477 cut-off events. For 591/591 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3493 event pairs, 0 based on Foata normal form. 33/1443 useless extension candidates. Maximal degree in co-relation 1790. Up to 170 conditions per place. [2024-11-09 07:10:28,914 INFO L140 encePairwiseOnDemand]: 1250/1256 looper letters, 40 selfloop transitions, 1 changer transitions 24/299 dead transitions. [2024-11-09 07:10:28,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 299 transitions, 880 flow [2024-11-09 07:10:28,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:28,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:28,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2907 transitions. [2024-11-09 07:10:28,916 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7714968152866242 [2024-11-09 07:10:28,916 INFO L175 Difference]: Start difference. First operand has 372 places, 304 transitions, 804 flow. Second operand 3 states and 2907 transitions. [2024-11-09 07:10:28,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 299 transitions, 880 flow [2024-11-09 07:10:28,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 299 transitions, 876 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:28,920 INFO L231 Difference]: Finished difference. Result has 366 places, 275 transitions, 742 flow [2024-11-09 07:10:28,920 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1256, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=742, PETRI_PLACES=366, PETRI_TRANSITIONS=275} [2024-11-09 07:10:28,920 INFO L277 CegarLoopForPetriNet]: 372 programPoint places, -6 predicate places. [2024-11-09 07:10:28,920 INFO L471 AbstractCegarLoop]: Abstraction has has 366 places, 275 transitions, 742 flow [2024-11-09 07:10:28,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 954.0) internal successors, (2862), 3 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:28,921 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:28,921 INFO L204 CegarLoopForPetriNet]: trace histogram [33, 33, 33, 33, 33, 33, 33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:28,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2024-11-09 07:10:28,921 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-09 07:10:28,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:28,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1881086181, now seen corresponding path program 1 times [2024-11-09 07:10:28,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:28,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756870462] [2024-11-09 07:10:28,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:28,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:29,046 INFO L134 CoverageAnalysis]: Checked inductivity of 7200 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 7104 trivial. 0 not checked. [2024-11-09 07:10:29,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:29,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756870462] [2024-11-09 07:10:29,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756870462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:29,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:29,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:29,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442413722] [2024-11-09 07:10:29,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:29,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:29,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:29,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:29,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:29,152 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1256 [2024-11-09 07:10:29,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 275 transitions, 742 flow. Second operand has 5 states, 5 states have (on average 1057.4) internal successors, (5287), 5 states have internal predecessors, (5287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:29,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:29,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1256 [2024-11-09 07:10:29,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:29,497 INFO L124 PetriNetUnfolderBase]: 0/698 cut-off events. [2024-11-09 07:10:29,497 INFO L125 PetriNetUnfolderBase]: For 590/590 co-relation queries the response was YES. [2024-11-09 07:10:29,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 937 conditions, 698 events. 0/698 cut-off events. For 590/590 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 411 event pairs, 0 based on Foata normal form. 1/698 useless extension candidates. Maximal degree in co-relation 0. Up to 104 conditions per place. [2024-11-09 07:10:29,498 INFO L140 encePairwiseOnDemand]: 1251/1256 looper letters, 40 selfloop transitions, 2 changer transitions 3/277 dead transitions. [2024-11-09 07:10:29,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 277 transitions, 836 flow [2024-11-09 07:10:29,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:29,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:29,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5291 transitions. [2024-11-09 07:10:29,504 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.842515923566879 [2024-11-09 07:10:29,504 INFO L175 Difference]: Start difference. First operand has 366 places, 275 transitions, 742 flow. Second operand 5 states and 5291 transitions. [2024-11-09 07:10:29,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 277 transitions, 836 flow [2024-11-09 07:10:29,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 277 transitions, 835 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:29,510 INFO L231 Difference]: Finished difference. Result has 346 places, 274 transitions, 747 flow [2024-11-09 07:10:29,510 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1256, PETRI_DIFFERENCE_MINUEND_FLOW=741, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=747, PETRI_PLACES=346, PETRI_TRANSITIONS=274} [2024-11-09 07:10:29,511 INFO L277 CegarLoopForPetriNet]: 372 programPoint places, -26 predicate places. [2024-11-09 07:10:29,511 INFO L471 AbstractCegarLoop]: Abstraction has has 346 places, 274 transitions, 747 flow [2024-11-09 07:10:29,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1057.4) internal successors, (5287), 5 states have internal predecessors, (5287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:29,512 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:29,512 INFO L204 CegarLoopForPetriNet]: trace histogram [33, 33, 33, 33, 33, 33, 33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:29,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2024-11-09 07:10:29,513 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-09 07:10:29,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:29,513 INFO L85 PathProgramCache]: Analyzing trace with hash 765533345, now seen corresponding path program 1 times [2024-11-09 07:10:29,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:29,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411434051] [2024-11-09 07:10:29,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:29,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:29,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:29,608 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:29,762 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:29,762 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:29,762 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 40 remaining) [2024-11-09 07:10:29,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2024-11-09 07:10:29,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2024-11-09 07:10:29,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2024-11-09 07:10:29,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2024-11-09 07:10:29,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2024-11-09 07:10:29,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 40 remaining) [2024-11-09 07:10:29,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2024-11-09 07:10:29,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2024-11-09 07:10:29,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2024-11-09 07:10:29,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2024-11-09 07:10:29,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2024-11-09 07:10:29,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2024-11-09 07:10:29,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2024-11-09 07:10:29,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2024-11-09 07:10:29,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2024-11-09 07:10:29,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2024-11-09 07:10:29,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2024-11-09 07:10:29,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2024-11-09 07:10:29,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2024-11-09 07:10:29,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2024-11-09 07:10:29,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2024-11-09 07:10:29,764 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2024-11-09 07:10:29,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2024-11-09 07:10:29,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2024-11-09 07:10:29,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2024-11-09 07:10:29,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2024-11-09 07:10:29,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2024-11-09 07:10:29,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2024-11-09 07:10:29,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2024-11-09 07:10:29,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2024-11-09 07:10:29,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2024-11-09 07:10:29,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2024-11-09 07:10:29,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2024-11-09 07:10:29,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2024-11-09 07:10:29,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2024-11-09 07:10:29,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2024-11-09 07:10:29,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2024-11-09 07:10:29,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2024-11-09 07:10:29,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2024-11-09 07:10:29,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2024-11-09 07:10:29,766 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:29,767 WARN L244 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:29,767 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2024-11-09 07:10:29,910 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:29,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1292 places, 1293 transitions, 4962 flow [2024-11-09 07:10:30,490 INFO L124 PetriNetUnfolderBase]: 172/2207 cut-off events. [2024-11-09 07:10:30,490 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2024-11-09 07:10:30,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2936 conditions, 2207 events. 172/2207 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6294 event pairs, 0 based on Foata normal form. 0/1929 useless extension candidates. Maximal degree in co-relation 2869. Up to 68 conditions per place. [2024-11-09 07:10:30,519 INFO L82 GeneralOperation]: Start removeDead. Operand has 1292 places, 1293 transitions, 4962 flow [2024-11-09 07:10:30,524 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 381 places, 316 transitions, 1823 flow [2024-11-09 07:10:30,524 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:30,525 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:30,525 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2024-11-09 07:10:30,526 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:30,526 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:30,526 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:30,526 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:30,527 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:30,527 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-09 07:10:30,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:30,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1336201219, now seen corresponding path program 1 times [2024-11-09 07:10:30,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:30,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834962397] [2024-11-09 07:10:30,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:30,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:30,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:30,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:30,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834962397] [2024-11-09 07:10:30,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834962397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:30,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:30,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:30,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540365644] [2024-11-09 07:10:30,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:30,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:30,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:30,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:30,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:30,689 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1293 [2024-11-09 07:10:30,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 316 transitions, 1823 flow. Second operand has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:30,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:30,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1293 [2024-11-09 07:10:30,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:31,191 INFO L124 PetriNetUnfolderBase]: 69/1695 cut-off events. [2024-11-09 07:10:31,191 INFO L125 PetriNetUnfolderBase]: For 7107/7107 co-relation queries the response was YES. [2024-11-09 07:10:31,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2638 conditions, 1695 events. 69/1695 cut-off events. For 7107/7107 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4776 event pairs, 34 based on Foata normal form. 69/1623 useless extension candidates. Maximal degree in co-relation 2509. Up to 244 conditions per place. [2024-11-09 07:10:31,213 INFO L140 encePairwiseOnDemand]: 1287/1293 looper letters, 43 selfloop transitions, 2 changer transitions 1/312 dead transitions. [2024-11-09 07:10:31,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 312 transitions, 1905 flow [2024-11-09 07:10:31,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:31,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:31,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3196 transitions. [2024-11-09 07:10:31,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8239236916731116 [2024-11-09 07:10:31,216 INFO L175 Difference]: Start difference. First operand has 381 places, 316 transitions, 1823 flow. Second operand 3 states and 3196 transitions. [2024-11-09 07:10:31,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 312 transitions, 1905 flow [2024-11-09 07:10:31,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 312 transitions, 912 flow, removed 496 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:31,230 INFO L231 Difference]: Finished difference. Result has 381 places, 311 transitions, 824 flow [2024-11-09 07:10:31,230 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1293, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=824, PETRI_PLACES=381, PETRI_TRANSITIONS=311} [2024-11-09 07:10:31,231 INFO L277 CegarLoopForPetriNet]: 381 programPoint places, 0 predicate places. [2024-11-09 07:10:31,231 INFO L471 AbstractCegarLoop]: Abstraction has has 381 places, 311 transitions, 824 flow [2024-11-09 07:10:31,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:31,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:31,231 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] [2024-11-09 07:10:31,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2024-11-09 07:10:31,232 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-09 07:10:31,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:31,232 INFO L85 PathProgramCache]: Analyzing trace with hash 2074173190, now seen corresponding path program 1 times [2024-11-09 07:10:31,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:31,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141919096] [2024-11-09 07:10:31,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:31,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:31,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:31,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:31,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141919096] [2024-11-09 07:10:31,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141919096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:31,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:31,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:31,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450957876] [2024-11-09 07:10:31,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:31,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:31,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:31,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:31,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:31,360 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 981 out of 1293 [2024-11-09 07:10:31,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 311 transitions, 824 flow. Second operand has 3 states, 3 states have (on average 982.0) internal successors, (2946), 3 states have internal predecessors, (2946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:31,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:31,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 981 of 1293 [2024-11-09 07:10:31,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:31,796 INFO L124 PetriNetUnfolderBase]: 35/1521 cut-off events. [2024-11-09 07:10:31,796 INFO L125 PetriNetUnfolderBase]: For 626/626 co-relation queries the response was YES. [2024-11-09 07:10:31,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1901 conditions, 1521 events. 35/1521 cut-off events. For 626/626 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3601 event pairs, 0 based on Foata normal form. 34/1486 useless extension candidates. Maximal degree in co-relation 1844. Up to 175 conditions per place. [2024-11-09 07:10:31,814 INFO L140 encePairwiseOnDemand]: 1287/1293 looper letters, 41 selfloop transitions, 1 changer transitions 24/306 dead transitions. [2024-11-09 07:10:31,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 306 transitions, 902 flow [2024-11-09 07:10:31,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:31,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:31,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2992 transitions. [2024-11-09 07:10:31,816 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7713328177365301 [2024-11-09 07:10:31,816 INFO L175 Difference]: Start difference. First operand has 381 places, 311 transitions, 824 flow. Second operand 3 states and 2992 transitions. [2024-11-09 07:10:31,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 306 transitions, 902 flow [2024-11-09 07:10:31,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 306 transitions, 898 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:31,819 INFO L231 Difference]: Finished difference. Result has 375 places, 282 transitions, 762 flow [2024-11-09 07:10:31,819 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1293, PETRI_DIFFERENCE_MINUEND_FLOW=810, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=762, PETRI_PLACES=375, PETRI_TRANSITIONS=282} [2024-11-09 07:10:31,820 INFO L277 CegarLoopForPetriNet]: 381 programPoint places, -6 predicate places. [2024-11-09 07:10:31,820 INFO L471 AbstractCegarLoop]: Abstraction has has 375 places, 282 transitions, 762 flow [2024-11-09 07:10:31,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 982.0) internal successors, (2946), 3 states have internal predecessors, (2946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:31,820 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:31,820 INFO L204 CegarLoopForPetriNet]: trace histogram [34, 34, 34, 34, 34, 34, 34, 33, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:31,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2024-11-09 07:10:31,820 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-09 07:10:31,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:31,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1013410051, now seen corresponding path program 1 times [2024-11-09 07:10:31,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:31,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93680397] [2024-11-09 07:10:31,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:31,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:31,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:31,970 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 7557 trivial. 0 not checked. [2024-11-09 07:10:31,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:31,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93680397] [2024-11-09 07:10:31,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93680397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:31,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:31,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:31,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652588954] [2024-11-09 07:10:31,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:31,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:31,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:31,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:31,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:32,086 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1080 out of 1293 [2024-11-09 07:10:32,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 282 transitions, 762 flow. Second operand has 5 states, 5 states have (on average 1088.6) internal successors, (5443), 5 states have internal predecessors, (5443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:32,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:32,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1080 of 1293 [2024-11-09 07:10:32,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:32,348 INFO L124 PetriNetUnfolderBase]: 0/718 cut-off events. [2024-11-09 07:10:32,349 INFO L125 PetriNetUnfolderBase]: For 625/625 co-relation queries the response was YES. [2024-11-09 07:10:32,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 964 conditions, 718 events. 0/718 cut-off events. For 625/625 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 423 event pairs, 0 based on Foata normal form. 1/718 useless extension candidates. Maximal degree in co-relation 0. Up to 107 conditions per place. [2024-11-09 07:10:32,350 INFO L140 encePairwiseOnDemand]: 1288/1293 looper letters, 41 selfloop transitions, 2 changer transitions 3/284 dead transitions. [2024-11-09 07:10:32,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 284 transitions, 858 flow [2024-11-09 07:10:32,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:32,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:32,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5447 transitions. [2024-11-09 07:10:32,354 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8425367362722351 [2024-11-09 07:10:32,354 INFO L175 Difference]: Start difference. First operand has 375 places, 282 transitions, 762 flow. Second operand 5 states and 5447 transitions. [2024-11-09 07:10:32,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 284 transitions, 858 flow [2024-11-09 07:10:32,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 284 transitions, 857 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:32,359 INFO L231 Difference]: Finished difference. Result has 355 places, 281 transitions, 767 flow [2024-11-09 07:10:32,360 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1293, PETRI_DIFFERENCE_MINUEND_FLOW=761, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=767, PETRI_PLACES=355, PETRI_TRANSITIONS=281} [2024-11-09 07:10:32,360 INFO L277 CegarLoopForPetriNet]: 381 programPoint places, -26 predicate places. [2024-11-09 07:10:32,360 INFO L471 AbstractCegarLoop]: Abstraction has has 355 places, 281 transitions, 767 flow [2024-11-09 07:10:32,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1088.6) internal successors, (5443), 5 states have internal predecessors, (5443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:32,361 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:32,361 INFO L204 CegarLoopForPetriNet]: trace histogram [34, 34, 34, 34, 34, 34, 34, 33, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:32,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2024-11-09 07:10:32,363 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-09 07:10:32,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:32,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1901110780, now seen corresponding path program 1 times [2024-11-09 07:10:32,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:32,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72651118] [2024-11-09 07:10:32,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:32,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:32,428 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:32,601 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:32,602 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:32,602 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining) [2024-11-09 07:10:32,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (39 of 41 remaining) [2024-11-09 07:10:32,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (38 of 41 remaining) [2024-11-09 07:10:32,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (37 of 41 remaining) [2024-11-09 07:10:32,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (36 of 41 remaining) [2024-11-09 07:10:32,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (35 of 41 remaining) [2024-11-09 07:10:32,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 41 remaining) [2024-11-09 07:10:32,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 41 remaining) [2024-11-09 07:10:32,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 41 remaining) [2024-11-09 07:10:32,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 41 remaining) [2024-11-09 07:10:32,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 41 remaining) [2024-11-09 07:10:32,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 41 remaining) [2024-11-09 07:10:32,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 41 remaining) [2024-11-09 07:10:32,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 41 remaining) [2024-11-09 07:10:32,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 41 remaining) [2024-11-09 07:10:32,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 41 remaining) [2024-11-09 07:10:32,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 41 remaining) [2024-11-09 07:10:32,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 41 remaining) [2024-11-09 07:10:32,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 41 remaining) [2024-11-09 07:10:32,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 41 remaining) [2024-11-09 07:10:32,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 41 remaining) [2024-11-09 07:10:32,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 41 remaining) [2024-11-09 07:10:32,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 41 remaining) [2024-11-09 07:10:32,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 41 remaining) [2024-11-09 07:10:32,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 41 remaining) [2024-11-09 07:10:32,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 41 remaining) [2024-11-09 07:10:32,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 41 remaining) [2024-11-09 07:10:32,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 41 remaining) [2024-11-09 07:10:32,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 41 remaining) [2024-11-09 07:10:32,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 41 remaining) [2024-11-09 07:10:32,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 41 remaining) [2024-11-09 07:10:32,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 41 remaining) [2024-11-09 07:10:32,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 41 remaining) [2024-11-09 07:10:32,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 41 remaining) [2024-11-09 07:10:32,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 41 remaining) [2024-11-09 07:10:32,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 41 remaining) [2024-11-09 07:10:32,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 41 remaining) [2024-11-09 07:10:32,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 41 remaining) [2024-11-09 07:10:32,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 41 remaining) [2024-11-09 07:10:32,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 41 remaining) [2024-11-09 07:10:32,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 41 remaining) [2024-11-09 07:10:32,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2024-11-09 07:10:32,608 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:32,608 WARN L244 ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:32,608 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances. [2024-11-09 07:10:32,740 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:32,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1329 places, 1330 transitions, 5176 flow [2024-11-09 07:10:33,146 INFO L124 PetriNetUnfolderBase]: 177/2271 cut-off events. [2024-11-09 07:10:33,147 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2024-11-09 07:10:33,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3039 conditions, 2271 events. 177/2271 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6381 event pairs, 0 based on Foata normal form. 0/1985 useless extension candidates. Maximal degree in co-relation 2970. Up to 70 conditions per place. [2024-11-09 07:10:33,177 INFO L82 GeneralOperation]: Start removeDead. Operand has 1329 places, 1330 transitions, 5176 flow [2024-11-09 07:10:33,182 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 390 places, 323 transitions, 1907 flow [2024-11-09 07:10:33,182 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:33,182 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:33,182 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-11-09 07:10:33,184 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:33,184 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:33,184 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:33,184 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:33,184 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:33,184 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-09 07:10:33,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:33,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1203388931, now seen corresponding path program 1 times [2024-11-09 07:10:33,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:33,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069676768] [2024-11-09 07:10:33,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:33,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:33,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:33,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:33,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069676768] [2024-11-09 07:10:33,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069676768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:33,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:33,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:33,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541950411] [2024-11-09 07:10:33,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:33,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:33,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:33,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:33,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:33,329 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1079 out of 1330 [2024-11-09 07:10:33,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 323 transitions, 1907 flow. Second operand has 3 states, 3 states have (on average 1080.3333333333333) internal successors, (3241), 3 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:33,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:33,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1079 of 1330 [2024-11-09 07:10:33,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:33,851 INFO L124 PetriNetUnfolderBase]: 71/1744 cut-off events. [2024-11-09 07:10:33,851 INFO L125 PetriNetUnfolderBase]: For 7736/7736 co-relation queries the response was YES. [2024-11-09 07:10:33,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2732 conditions, 1744 events. 71/1744 cut-off events. For 7736/7736 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4881 event pairs, 35 based on Foata normal form. 71/1670 useless extension candidates. Maximal degree in co-relation 2601. Up to 251 conditions per place. [2024-11-09 07:10:33,863 INFO L140 encePairwiseOnDemand]: 1324/1330 looper letters, 44 selfloop transitions, 2 changer transitions 1/319 dead transitions. [2024-11-09 07:10:33,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 319 transitions, 1991 flow [2024-11-09 07:10:33,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:33,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:33,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3287 transitions. [2024-11-09 07:10:33,864 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8238095238095238 [2024-11-09 07:10:33,864 INFO L175 Difference]: Start difference. First operand has 390 places, 323 transitions, 1907 flow. Second operand 3 states and 3287 transitions. [2024-11-09 07:10:33,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 319 transitions, 1991 flow [2024-11-09 07:10:33,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 319 transitions, 934 flow, removed 528 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:33,877 INFO L231 Difference]: Finished difference. Result has 390 places, 318 transitions, 844 flow [2024-11-09 07:10:33,877 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1330, PETRI_DIFFERENCE_MINUEND_FLOW=842, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=844, PETRI_PLACES=390, PETRI_TRANSITIONS=318} [2024-11-09 07:10:33,877 INFO L277 CegarLoopForPetriNet]: 390 programPoint places, 0 predicate places. [2024-11-09 07:10:33,877 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 318 transitions, 844 flow [2024-11-09 07:10:33,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1080.3333333333333) internal successors, (3241), 3 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:33,878 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:33,878 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] [2024-11-09 07:10:33,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2024-11-09 07:10:33,878 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-09 07:10:33,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:33,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1440838266, now seen corresponding path program 1 times [2024-11-09 07:10:33,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:33,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459025027] [2024-11-09 07:10:33,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:33,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:33,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:33,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:33,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:33,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459025027] [2024-11-09 07:10:33,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459025027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:33,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:33,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:33,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018510966] [2024-11-09 07:10:33,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:33,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:33,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:33,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:33,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:33,982 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1009 out of 1330 [2024-11-09 07:10:33,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 318 transitions, 844 flow. Second operand has 3 states, 3 states have (on average 1010.0) internal successors, (3030), 3 states have internal predecessors, (3030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:33,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:33,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1009 of 1330 [2024-11-09 07:10:33,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:34,292 INFO L124 PetriNetUnfolderBase]: 36/1565 cut-off events. [2024-11-09 07:10:34,292 INFO L125 PetriNetUnfolderBase]: For 662/662 co-relation queries the response was YES. [2024-11-09 07:10:34,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1956 conditions, 1565 events. 36/1565 cut-off events. For 662/662 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3709 event pairs, 0 based on Foata normal form. 35/1529 useless extension candidates. Maximal degree in co-relation 1898. Up to 180 conditions per place. [2024-11-09 07:10:34,310 INFO L140 encePairwiseOnDemand]: 1324/1330 looper letters, 42 selfloop transitions, 1 changer transitions 24/313 dead transitions. [2024-11-09 07:10:34,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 313 transitions, 924 flow [2024-11-09 07:10:34,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:34,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:34,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3077 transitions. [2024-11-09 07:10:34,312 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7711779448621554 [2024-11-09 07:10:34,312 INFO L175 Difference]: Start difference. First operand has 390 places, 318 transitions, 844 flow. Second operand 3 states and 3077 transitions. [2024-11-09 07:10:34,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 313 transitions, 924 flow [2024-11-09 07:10:34,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 313 transitions, 920 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:34,316 INFO L231 Difference]: Finished difference. Result has 384 places, 289 transitions, 782 flow [2024-11-09 07:10:34,316 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1330, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=782, PETRI_PLACES=384, PETRI_TRANSITIONS=289} [2024-11-09 07:10:34,316 INFO L277 CegarLoopForPetriNet]: 390 programPoint places, -6 predicate places. [2024-11-09 07:10:34,316 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 289 transitions, 782 flow [2024-11-09 07:10:34,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1010.0) internal successors, (3030), 3 states have internal predecessors, (3030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:34,317 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:34,317 INFO L204 CegarLoopForPetriNet]: trace histogram [35, 35, 35, 35, 35, 35, 35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:34,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2024-11-09 07:10:34,317 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-09 07:10:34,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:34,317 INFO L85 PathProgramCache]: Analyzing trace with hash 123785175, now seen corresponding path program 1 times [2024-11-09 07:10:34,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:34,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917167680] [2024-11-09 07:10:34,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:34,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:34,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:34,492 INFO L134 CoverageAnalysis]: Checked inductivity of 8126 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 8024 trivial. 0 not checked. [2024-11-09 07:10:34,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:34,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917167680] [2024-11-09 07:10:34,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917167680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:34,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:34,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:34,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852941469] [2024-11-09 07:10:34,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:34,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:34,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:34,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:34,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:34,613 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1111 out of 1330 [2024-11-09 07:10:34,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 289 transitions, 782 flow. Second operand has 5 states, 5 states have (on average 1119.8) internal successors, (5599), 5 states have internal predecessors, (5599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:34,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:34,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1111 of 1330 [2024-11-09 07:10:34,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:34,791 INFO L124 PetriNetUnfolderBase]: 0/738 cut-off events. [2024-11-09 07:10:34,791 INFO L125 PetriNetUnfolderBase]: For 661/661 co-relation queries the response was YES. [2024-11-09 07:10:34,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 991 conditions, 738 events. 0/738 cut-off events. For 661/661 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 435 event pairs, 0 based on Foata normal form. 1/738 useless extension candidates. Maximal degree in co-relation 0. Up to 110 conditions per place. [2024-11-09 07:10:34,792 INFO L140 encePairwiseOnDemand]: 1325/1330 looper letters, 42 selfloop transitions, 2 changer transitions 3/291 dead transitions. [2024-11-09 07:10:34,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 291 transitions, 880 flow [2024-11-09 07:10:34,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:34,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:34,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5603 transitions. [2024-11-09 07:10:34,796 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8425563909774436 [2024-11-09 07:10:34,796 INFO L175 Difference]: Start difference. First operand has 384 places, 289 transitions, 782 flow. Second operand 5 states and 5603 transitions. [2024-11-09 07:10:34,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 291 transitions, 880 flow [2024-11-09 07:10:34,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 291 transitions, 879 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:34,800 INFO L231 Difference]: Finished difference. Result has 364 places, 288 transitions, 787 flow [2024-11-09 07:10:34,800 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1330, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=787, PETRI_PLACES=364, PETRI_TRANSITIONS=288} [2024-11-09 07:10:34,801 INFO L277 CegarLoopForPetriNet]: 390 programPoint places, -26 predicate places. [2024-11-09 07:10:34,801 INFO L471 AbstractCegarLoop]: Abstraction has has 364 places, 288 transitions, 787 flow [2024-11-09 07:10:34,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1119.8) internal successors, (5599), 5 states have internal predecessors, (5599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:34,801 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:34,802 INFO L204 CegarLoopForPetriNet]: trace histogram [35, 35, 35, 35, 35, 35, 35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:34,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2024-11-09 07:10:34,802 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-09 07:10:34,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:34,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1914193246, now seen corresponding path program 1 times [2024-11-09 07:10:34,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:34,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626379948] [2024-11-09 07:10:34,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:34,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:34,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:34,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:35,046 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:35,046 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:35,046 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 42 remaining) [2024-11-09 07:10:35,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (40 of 42 remaining) [2024-11-09 07:10:35,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (39 of 42 remaining) [2024-11-09 07:10:35,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (38 of 42 remaining) [2024-11-09 07:10:35,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (37 of 42 remaining) [2024-11-09 07:10:35,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (36 of 42 remaining) [2024-11-09 07:10:35,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 42 remaining) [2024-11-09 07:10:35,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 42 remaining) [2024-11-09 07:10:35,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 42 remaining) [2024-11-09 07:10:35,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 42 remaining) [2024-11-09 07:10:35,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 42 remaining) [2024-11-09 07:10:35,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 42 remaining) [2024-11-09 07:10:35,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 42 remaining) [2024-11-09 07:10:35,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 42 remaining) [2024-11-09 07:10:35,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 42 remaining) [2024-11-09 07:10:35,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 42 remaining) [2024-11-09 07:10:35,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 42 remaining) [2024-11-09 07:10:35,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 42 remaining) [2024-11-09 07:10:35,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 42 remaining) [2024-11-09 07:10:35,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 42 remaining) [2024-11-09 07:10:35,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 42 remaining) [2024-11-09 07:10:35,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 42 remaining) [2024-11-09 07:10:35,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 42 remaining) [2024-11-09 07:10:35,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 42 remaining) [2024-11-09 07:10:35,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 42 remaining) [2024-11-09 07:10:35,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 42 remaining) [2024-11-09 07:10:35,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 42 remaining) [2024-11-09 07:10:35,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 42 remaining) [2024-11-09 07:10:35,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 42 remaining) [2024-11-09 07:10:35,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 42 remaining) [2024-11-09 07:10:35,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 42 remaining) [2024-11-09 07:10:35,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 42 remaining) [2024-11-09 07:10:35,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 42 remaining) [2024-11-09 07:10:35,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 42 remaining) [2024-11-09 07:10:35,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 42 remaining) [2024-11-09 07:10:35,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 42 remaining) [2024-11-09 07:10:35,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 42 remaining) [2024-11-09 07:10:35,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 42 remaining) [2024-11-09 07:10:35,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 42 remaining) [2024-11-09 07:10:35,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 42 remaining) [2024-11-09 07:10:35,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 42 remaining) [2024-11-09 07:10:35,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 42 remaining) [2024-11-09 07:10:35,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2024-11-09 07:10:35,051 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:35,052 WARN L244 ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:35,052 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances. [2024-11-09 07:10:35,185 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:35,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1366 places, 1367 transitions, 5394 flow [2024-11-09 07:10:35,621 INFO L124 PetriNetUnfolderBase]: 182/2335 cut-off events. [2024-11-09 07:10:35,621 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2024-11-09 07:10:35,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3143 conditions, 2335 events. 182/2335 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6583 event pairs, 0 based on Foata normal form. 0/2041 useless extension candidates. Maximal degree in co-relation 3072. Up to 72 conditions per place. [2024-11-09 07:10:35,656 INFO L82 GeneralOperation]: Start removeDead. Operand has 1366 places, 1367 transitions, 5394 flow [2024-11-09 07:10:35,660 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 399 places, 330 transitions, 1993 flow [2024-11-09 07:10:35,661 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:35,661 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:35,661 INFO L334 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2024-11-09 07:10:35,662 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:35,662 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:35,662 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:35,662 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:35,663 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:35,663 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-09 07:10:35,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:35,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1021671683, now seen corresponding path program 1 times [2024-11-09 07:10:35,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:35,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7066425] [2024-11-09 07:10:35,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:35,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:35,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:35,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:35,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7066425] [2024-11-09 07:10:35,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7066425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:35,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:35,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:35,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507186924] [2024-11-09 07:10:35,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:35,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:35,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:35,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:35,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:35,821 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1109 out of 1367 [2024-11-09 07:10:35,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 330 transitions, 1993 flow. Second operand has 3 states, 3 states have (on average 1110.3333333333333) internal successors, (3331), 3 states have internal predecessors, (3331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:35,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:35,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1109 of 1367 [2024-11-09 07:10:35,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:36,211 INFO L124 PetriNetUnfolderBase]: 73/1793 cut-off events. [2024-11-09 07:10:36,211 INFO L125 PetriNetUnfolderBase]: For 8401/8401 co-relation queries the response was YES. [2024-11-09 07:10:36,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2827 conditions, 1793 events. 73/1793 cut-off events. For 8401/8401 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5085 event pairs, 36 based on Foata normal form. 73/1717 useless extension candidates. Maximal degree in co-relation 2694. Up to 258 conditions per place. [2024-11-09 07:10:36,234 INFO L140 encePairwiseOnDemand]: 1361/1367 looper letters, 45 selfloop transitions, 2 changer transitions 1/326 dead transitions. [2024-11-09 07:10:36,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 326 transitions, 2079 flow [2024-11-09 07:10:36,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:36,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:36,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3378 transitions. [2024-11-09 07:10:36,236 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8237015362106803 [2024-11-09 07:10:36,237 INFO L175 Difference]: Start difference. First operand has 399 places, 330 transitions, 1993 flow. Second operand 3 states and 3378 transitions. [2024-11-09 07:10:36,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 326 transitions, 2079 flow [2024-11-09 07:10:36,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 326 transitions, 956 flow, removed 561 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:36,251 INFO L231 Difference]: Finished difference. Result has 399 places, 325 transitions, 864 flow [2024-11-09 07:10:36,251 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1367, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=864, PETRI_PLACES=399, PETRI_TRANSITIONS=325} [2024-11-09 07:10:36,252 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, 0 predicate places. [2024-11-09 07:10:36,252 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 325 transitions, 864 flow [2024-11-09 07:10:36,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1110.3333333333333) internal successors, (3331), 3 states have internal predecessors, (3331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:36,252 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:36,252 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] [2024-11-09 07:10:36,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2024-11-09 07:10:36,252 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-09 07:10:36,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:36,252 INFO L85 PathProgramCache]: Analyzing trace with hash 458777158, now seen corresponding path program 1 times [2024-11-09 07:10:36,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:36,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987549121] [2024-11-09 07:10:36,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:36,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:36,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:36,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:36,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987549121] [2024-11-09 07:10:36,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987549121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:36,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:36,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:36,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410932080] [2024-11-09 07:10:36,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:36,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:36,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:36,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:36,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:36,362 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1037 out of 1367 [2024-11-09 07:10:36,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 325 transitions, 864 flow. Second operand has 3 states, 3 states have (on average 1038.0) internal successors, (3114), 3 states have internal predecessors, (3114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:36,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:36,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1037 of 1367 [2024-11-09 07:10:36,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:36,700 INFO L124 PetriNetUnfolderBase]: 37/1609 cut-off events. [2024-11-09 07:10:36,700 INFO L125 PetriNetUnfolderBase]: For 699/699 co-relation queries the response was YES. [2024-11-09 07:10:36,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2011 conditions, 1609 events. 37/1609 cut-off events. For 699/699 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3817 event pairs, 0 based on Foata normal form. 36/1572 useless extension candidates. Maximal degree in co-relation 1952. Up to 185 conditions per place. [2024-11-09 07:10:36,719 INFO L140 encePairwiseOnDemand]: 1361/1367 looper letters, 43 selfloop transitions, 1 changer transitions 24/320 dead transitions. [2024-11-09 07:10:36,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 320 transitions, 946 flow [2024-11-09 07:10:36,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:36,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:36,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3162 transitions. [2024-11-09 07:10:36,721 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7710314557425019 [2024-11-09 07:10:36,721 INFO L175 Difference]: Start difference. First operand has 399 places, 325 transitions, 864 flow. Second operand 3 states and 3162 transitions. [2024-11-09 07:10:36,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 320 transitions, 946 flow [2024-11-09 07:10:36,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 320 transitions, 942 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:36,724 INFO L231 Difference]: Finished difference. Result has 393 places, 296 transitions, 802 flow [2024-11-09 07:10:36,724 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1367, PETRI_DIFFERENCE_MINUEND_FLOW=850, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=802, PETRI_PLACES=393, PETRI_TRANSITIONS=296} [2024-11-09 07:10:36,725 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -6 predicate places. [2024-11-09 07:10:36,725 INFO L471 AbstractCegarLoop]: Abstraction has has 393 places, 296 transitions, 802 flow [2024-11-09 07:10:36,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1038.0) internal successors, (3114), 3 states have internal predecessors, (3114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:36,725 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:36,725 INFO L204 CegarLoopForPetriNet]: trace histogram [36, 36, 36, 36, 36, 36, 36, 35, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:36,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2024-11-09 07:10:36,725 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-09 07:10:36,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:36,726 INFO L85 PathProgramCache]: Analyzing trace with hash -538149641, now seen corresponding path program 1 times [2024-11-09 07:10:36,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:36,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460655355] [2024-11-09 07:10:36,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:36,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:36,885 INFO L134 CoverageAnalysis]: Checked inductivity of 8610 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 8505 trivial. 0 not checked. [2024-11-09 07:10:36,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:36,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460655355] [2024-11-09 07:10:36,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460655355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:36,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:36,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:36,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793416655] [2024-11-09 07:10:36,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:36,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:36,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:36,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:36,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:37,043 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1142 out of 1367 [2024-11-09 07:10:37,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 296 transitions, 802 flow. Second operand has 5 states, 5 states have (on average 1151.0) internal successors, (5755), 5 states have internal predecessors, (5755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:37,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:37,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1142 of 1367 [2024-11-09 07:10:37,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:37,286 INFO L124 PetriNetUnfolderBase]: 0/758 cut-off events. [2024-11-09 07:10:37,286 INFO L125 PetriNetUnfolderBase]: For 698/698 co-relation queries the response was YES. [2024-11-09 07:10:37,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1018 conditions, 758 events. 0/758 cut-off events. For 698/698 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 447 event pairs, 0 based on Foata normal form. 1/758 useless extension candidates. Maximal degree in co-relation 0. Up to 113 conditions per place. [2024-11-09 07:10:37,287 INFO L140 encePairwiseOnDemand]: 1362/1367 looper letters, 43 selfloop transitions, 2 changer transitions 3/298 dead transitions. [2024-11-09 07:10:37,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 298 transitions, 902 flow [2024-11-09 07:10:37,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:37,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:37,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5759 transitions. [2024-11-09 07:10:37,290 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8425749817117776 [2024-11-09 07:10:37,290 INFO L175 Difference]: Start difference. First operand has 393 places, 296 transitions, 802 flow. Second operand 5 states and 5759 transitions. [2024-11-09 07:10:37,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 298 transitions, 902 flow [2024-11-09 07:10:37,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 298 transitions, 901 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:37,294 INFO L231 Difference]: Finished difference. Result has 373 places, 295 transitions, 807 flow [2024-11-09 07:10:37,295 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1367, PETRI_DIFFERENCE_MINUEND_FLOW=801, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=807, PETRI_PLACES=373, PETRI_TRANSITIONS=295} [2024-11-09 07:10:37,295 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -26 predicate places. [2024-11-09 07:10:37,295 INFO L471 AbstractCegarLoop]: Abstraction has has 373 places, 295 transitions, 807 flow [2024-11-09 07:10:37,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1151.0) internal successors, (5755), 5 states have internal predecessors, (5755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:37,296 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:37,296 INFO L204 CegarLoopForPetriNet]: trace histogram [36, 36, 36, 36, 36, 36, 36, 35, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:37,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2024-11-09 07:10:37,296 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-09 07:10:37,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:37,296 INFO L85 PathProgramCache]: Analyzing trace with hash 856173159, now seen corresponding path program 1 times [2024-11-09 07:10:37,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:37,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103140345] [2024-11-09 07:10:37,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:37,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:37,481 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:37,625 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:37,625 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:37,625 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (42 of 43 remaining) [2024-11-09 07:10:37,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (41 of 43 remaining) [2024-11-09 07:10:37,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (40 of 43 remaining) [2024-11-09 07:10:37,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (39 of 43 remaining) [2024-11-09 07:10:37,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (38 of 43 remaining) [2024-11-09 07:10:37,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (37 of 43 remaining) [2024-11-09 07:10:37,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 43 remaining) [2024-11-09 07:10:37,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 43 remaining) [2024-11-09 07:10:37,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 43 remaining) [2024-11-09 07:10:37,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 43 remaining) [2024-11-09 07:10:37,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 43 remaining) [2024-11-09 07:10:37,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 43 remaining) [2024-11-09 07:10:37,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 43 remaining) [2024-11-09 07:10:37,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 43 remaining) [2024-11-09 07:10:37,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 43 remaining) [2024-11-09 07:10:37,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 43 remaining) [2024-11-09 07:10:37,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 43 remaining) [2024-11-09 07:10:37,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 43 remaining) [2024-11-09 07:10:37,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 43 remaining) [2024-11-09 07:10:37,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 43 remaining) [2024-11-09 07:10:37,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 43 remaining) [2024-11-09 07:10:37,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 43 remaining) [2024-11-09 07:10:37,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 43 remaining) [2024-11-09 07:10:37,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 43 remaining) [2024-11-09 07:10:37,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 43 remaining) [2024-11-09 07:10:37,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 43 remaining) [2024-11-09 07:10:37,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 43 remaining) [2024-11-09 07:10:37,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 43 remaining) [2024-11-09 07:10:37,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 43 remaining) [2024-11-09 07:10:37,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 43 remaining) [2024-11-09 07:10:37,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 43 remaining) [2024-11-09 07:10:37,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 43 remaining) [2024-11-09 07:10:37,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 43 remaining) [2024-11-09 07:10:37,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 43 remaining) [2024-11-09 07:10:37,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 43 remaining) [2024-11-09 07:10:37,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 43 remaining) [2024-11-09 07:10:37,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 43 remaining) [2024-11-09 07:10:37,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 43 remaining) [2024-11-09 07:10:37,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 43 remaining) [2024-11-09 07:10:37,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 43 remaining) [2024-11-09 07:10:37,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 43 remaining) [2024-11-09 07:10:37,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 43 remaining) [2024-11-09 07:10:37,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 43 remaining) [2024-11-09 07:10:37,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2024-11-09 07:10:37,629 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:37,629 WARN L244 ceAbstractionStarter]: 35 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:37,629 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 36 thread instances. [2024-11-09 07:10:37,764 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:37,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1403 places, 1404 transitions, 5616 flow [2024-11-09 07:10:38,219 INFO L124 PetriNetUnfolderBase]: 187/2399 cut-off events. [2024-11-09 07:10:38,220 INFO L125 PetriNetUnfolderBase]: For 8400/8400 co-relation queries the response was YES. [2024-11-09 07:10:38,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3248 conditions, 2399 events. 187/2399 cut-off events. For 8400/8400 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6742 event pairs, 0 based on Foata normal form. 0/2097 useless extension candidates. Maximal degree in co-relation 3175. Up to 74 conditions per place. [2024-11-09 07:10:38,251 INFO L82 GeneralOperation]: Start removeDead. Operand has 1403 places, 1404 transitions, 5616 flow [2024-11-09 07:10:38,256 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 408 places, 337 transitions, 2081 flow [2024-11-09 07:10:38,256 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:38,257 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:38,257 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-11-09 07:10:38,258 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:38,258 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:38,258 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:38,259 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:38,259 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:38,259 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-09 07:10:38,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:38,259 INFO L85 PathProgramCache]: Analyzing trace with hash 791049475, now seen corresponding path program 1 times [2024-11-09 07:10:38,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:38,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989383230] [2024-11-09 07:10:38,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:38,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:38,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:38,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:38,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989383230] [2024-11-09 07:10:38,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989383230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:38,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:38,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:38,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391798250] [2024-11-09 07:10:38,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:38,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:38,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:38,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:38,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:38,412 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1139 out of 1404 [2024-11-09 07:10:38,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 337 transitions, 2081 flow. Second operand has 3 states, 3 states have (on average 1140.3333333333333) internal successors, (3421), 3 states have internal predecessors, (3421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:38,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:38,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1139 of 1404 [2024-11-09 07:10:38,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:38,815 INFO L124 PetriNetUnfolderBase]: 75/1842 cut-off events. [2024-11-09 07:10:38,815 INFO L125 PetriNetUnfolderBase]: For 9103/9103 co-relation queries the response was YES. [2024-11-09 07:10:38,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2923 conditions, 1842 events. 75/1842 cut-off events. For 9103/9103 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5086 event pairs, 37 based on Foata normal form. 38/1727 useless extension candidates. Maximal degree in co-relation 2788. Up to 265 conditions per place. [2024-11-09 07:10:38,841 INFO L140 encePairwiseOnDemand]: 1398/1404 looper letters, 46 selfloop transitions, 2 changer transitions 1/333 dead transitions. [2024-11-09 07:10:38,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 333 transitions, 2169 flow [2024-11-09 07:10:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:38,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:38,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3469 transitions. [2024-11-09 07:10:38,843 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8235992402659069 [2024-11-09 07:10:38,843 INFO L175 Difference]: Start difference. First operand has 408 places, 337 transitions, 2081 flow. Second operand 3 states and 3469 transitions. [2024-11-09 07:10:38,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 333 transitions, 2169 flow [2024-11-09 07:10:38,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 333 transitions, 978 flow, removed 595 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:38,856 INFO L231 Difference]: Finished difference. Result has 408 places, 332 transitions, 884 flow [2024-11-09 07:10:38,856 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1404, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=884, PETRI_PLACES=408, PETRI_TRANSITIONS=332} [2024-11-09 07:10:38,856 INFO L277 CegarLoopForPetriNet]: 408 programPoint places, 0 predicate places. [2024-11-09 07:10:38,857 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 332 transitions, 884 flow [2024-11-09 07:10:38,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1140.3333333333333) internal successors, (3421), 3 states have internal predecessors, (3421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:38,857 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:38,857 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] [2024-11-09 07:10:38,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2024-11-09 07:10:38,857 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-09 07:10:38,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:38,858 INFO L85 PathProgramCache]: Analyzing trace with hash -816915130, now seen corresponding path program 1 times [2024-11-09 07:10:38,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:38,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951728001] [2024-11-09 07:10:38,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:38,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:38,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:38,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:38,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951728001] [2024-11-09 07:10:38,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951728001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:38,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:38,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:38,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627619431] [2024-11-09 07:10:38,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:38,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:38,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:38,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:38,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:38,988 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1065 out of 1404 [2024-11-09 07:10:38,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 332 transitions, 884 flow. Second operand has 3 states, 3 states have (on average 1066.0) internal successors, (3198), 3 states have internal predecessors, (3198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:38,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:38,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1065 of 1404 [2024-11-09 07:10:38,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:39,334 INFO L124 PetriNetUnfolderBase]: 38/1653 cut-off events. [2024-11-09 07:10:39,334 INFO L125 PetriNetUnfolderBase]: For 737/737 co-relation queries the response was YES. [2024-11-09 07:10:39,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2066 conditions, 1653 events. 38/1653 cut-off events. For 737/737 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3817 event pairs, 0 based on Foata normal form. 37/1615 useless extension candidates. Maximal degree in co-relation 2006. Up to 190 conditions per place. [2024-11-09 07:10:39,353 INFO L140 encePairwiseOnDemand]: 1398/1404 looper letters, 44 selfloop transitions, 1 changer transitions 24/327 dead transitions. [2024-11-09 07:10:39,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 327 transitions, 968 flow [2024-11-09 07:10:39,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:39,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:39,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3247 transitions. [2024-11-09 07:10:39,355 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7708926875593543 [2024-11-09 07:10:39,355 INFO L175 Difference]: Start difference. First operand has 408 places, 332 transitions, 884 flow. Second operand 3 states and 3247 transitions. [2024-11-09 07:10:39,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 327 transitions, 968 flow [2024-11-09 07:10:39,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 327 transitions, 964 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:39,358 INFO L231 Difference]: Finished difference. Result has 402 places, 303 transitions, 822 flow [2024-11-09 07:10:39,359 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1404, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=822, PETRI_PLACES=402, PETRI_TRANSITIONS=303} [2024-11-09 07:10:39,359 INFO L277 CegarLoopForPetriNet]: 408 programPoint places, -6 predicate places. [2024-11-09 07:10:39,359 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 303 transitions, 822 flow [2024-11-09 07:10:39,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1066.0) internal successors, (3198), 3 states have internal predecessors, (3198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:39,359 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:39,359 INFO L204 CegarLoopForPetriNet]: trace histogram [37, 37, 37, 37, 37, 37, 37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:39,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2024-11-09 07:10:39,360 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-09 07:10:39,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:39,360 INFO L85 PathProgramCache]: Analyzing trace with hash 179212739, now seen corresponding path program 1 times [2024-11-09 07:10:39,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:39,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037453471] [2024-11-09 07:10:39,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:39,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:39,522 INFO L134 CoverageAnalysis]: Checked inductivity of 9108 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 9000 trivial. 0 not checked. [2024-11-09 07:10:39,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:39,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037453471] [2024-11-09 07:10:39,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037453471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:39,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:39,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:39,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716920549] [2024-11-09 07:10:39,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:39,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:39,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:39,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:39,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:39,645 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1173 out of 1404 [2024-11-09 07:10:39,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 303 transitions, 822 flow. Second operand has 5 states, 5 states have (on average 1182.2) internal successors, (5911), 5 states have internal predecessors, (5911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:39,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:39,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1173 of 1404 [2024-11-09 07:10:39,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:39,847 INFO L124 PetriNetUnfolderBase]: 0/778 cut-off events. [2024-11-09 07:10:39,847 INFO L125 PetriNetUnfolderBase]: For 736/736 co-relation queries the response was YES. [2024-11-09 07:10:39,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1045 conditions, 778 events. 0/778 cut-off events. For 736/736 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 460 event pairs, 0 based on Foata normal form. 1/778 useless extension candidates. Maximal degree in co-relation 0. Up to 116 conditions per place. [2024-11-09 07:10:39,848 INFO L140 encePairwiseOnDemand]: 1399/1404 looper letters, 44 selfloop transitions, 2 changer transitions 3/305 dead transitions. [2024-11-09 07:10:39,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 305 transitions, 924 flow [2024-11-09 07:10:39,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:39,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:39,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5915 transitions. [2024-11-09 07:10:39,851 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8425925925925926 [2024-11-09 07:10:39,851 INFO L175 Difference]: Start difference. First operand has 402 places, 303 transitions, 822 flow. Second operand 5 states and 5915 transitions. [2024-11-09 07:10:39,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 305 transitions, 924 flow [2024-11-09 07:10:39,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 305 transitions, 923 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:39,855 INFO L231 Difference]: Finished difference. Result has 382 places, 302 transitions, 827 flow [2024-11-09 07:10:39,855 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1404, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=827, PETRI_PLACES=382, PETRI_TRANSITIONS=302} [2024-11-09 07:10:39,855 INFO L277 CegarLoopForPetriNet]: 408 programPoint places, -26 predicate places. [2024-11-09 07:10:39,855 INFO L471 AbstractCegarLoop]: Abstraction has has 382 places, 302 transitions, 827 flow [2024-11-09 07:10:39,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1182.2) internal successors, (5911), 5 states have internal predecessors, (5911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:39,856 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:39,856 INFO L204 CegarLoopForPetriNet]: trace histogram [37, 37, 37, 37, 37, 37, 37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:39,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2024-11-09 07:10:39,856 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-09 07:10:39,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:39,856 INFO L85 PathProgramCache]: Analyzing trace with hash -829332297, now seen corresponding path program 1 times [2024-11-09 07:10:39,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:39,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695362792] [2024-11-09 07:10:39,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:39,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:39,911 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:40,069 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:40,070 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:40,070 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 44 remaining) [2024-11-09 07:10:40,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2024-11-09 07:10:40,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2024-11-09 07:10:40,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2024-11-09 07:10:40,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2024-11-09 07:10:40,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2024-11-09 07:10:40,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 44 remaining) [2024-11-09 07:10:40,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2024-11-09 07:10:40,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2024-11-09 07:10:40,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 44 remaining) [2024-11-09 07:10:40,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2024-11-09 07:10:40,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2024-11-09 07:10:40,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2024-11-09 07:10:40,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2024-11-09 07:10:40,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2024-11-09 07:10:40,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2024-11-09 07:10:40,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2024-11-09 07:10:40,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 44 remaining) [2024-11-09 07:10:40,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 44 remaining) [2024-11-09 07:10:40,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 44 remaining) [2024-11-09 07:10:40,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 44 remaining) [2024-11-09 07:10:40,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2024-11-09 07:10:40,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 44 remaining) [2024-11-09 07:10:40,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 44 remaining) [2024-11-09 07:10:40,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 44 remaining) [2024-11-09 07:10:40,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2024-11-09 07:10:40,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2024-11-09 07:10:40,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2024-11-09 07:10:40,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2024-11-09 07:10:40,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2024-11-09 07:10:40,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2024-11-09 07:10:40,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 44 remaining) [2024-11-09 07:10:40,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2024-11-09 07:10:40,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 44 remaining) [2024-11-09 07:10:40,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2024-11-09 07:10:40,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2024-11-09 07:10:40,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2024-11-09 07:10:40,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2024-11-09 07:10:40,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2024-11-09 07:10:40,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2024-11-09 07:10:40,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2024-11-09 07:10:40,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2024-11-09 07:10:40,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2024-11-09 07:10:40,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 44 remaining) [2024-11-09 07:10:40,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2024-11-09 07:10:40,073 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:40,073 WARN L244 ceAbstractionStarter]: 36 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:40,073 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 37 thread instances. [2024-11-09 07:10:40,198 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:40,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1440 places, 1441 transitions, 5842 flow [2024-11-09 07:10:40,714 INFO L124 PetriNetUnfolderBase]: 192/2463 cut-off events. [2024-11-09 07:10:40,714 INFO L125 PetriNetUnfolderBase]: For 9102/9102 co-relation queries the response was YES. [2024-11-09 07:10:40,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3354 conditions, 2463 events. 192/2463 cut-off events. For 9102/9102 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6965 event pairs, 0 based on Foata normal form. 0/2153 useless extension candidates. Maximal degree in co-relation 3279. Up to 76 conditions per place. [2024-11-09 07:10:40,751 INFO L82 GeneralOperation]: Start removeDead. Operand has 1440 places, 1441 transitions, 5842 flow [2024-11-09 07:10:40,756 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 417 places, 344 transitions, 2171 flow [2024-11-09 07:10:40,756 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:40,757 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:40,757 INFO L334 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2024-11-09 07:10:40,758 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:40,758 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:40,758 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:40,758 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:40,758 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:40,759 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-09 07:10:40,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:40,759 INFO L85 PathProgramCache]: Analyzing trace with hash 511522307, now seen corresponding path program 1 times [2024-11-09 07:10:40,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:40,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973415604] [2024-11-09 07:10:40,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:40,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:40,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:40,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:40,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:40,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973415604] [2024-11-09 07:10:40,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973415604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:40,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:40,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:40,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578850178] [2024-11-09 07:10:40,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:40,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:40,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:40,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:40,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:40,927 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1169 out of 1441 [2024-11-09 07:10:40,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 344 transitions, 2171 flow. Second operand has 3 states, 3 states have (on average 1170.3333333333333) internal successors, (3511), 3 states have internal predecessors, (3511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:40,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:40,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1169 of 1441 [2024-11-09 07:10:40,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:41,489 INFO L124 PetriNetUnfolderBase]: 77/1891 cut-off events. [2024-11-09 07:10:41,489 INFO L125 PetriNetUnfolderBase]: For 9843/9843 co-relation queries the response was YES. [2024-11-09 07:10:41,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3020 conditions, 1891 events. 77/1891 cut-off events. For 9843/9843 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5222 event pairs, 38 based on Foata normal form. 39/1773 useless extension candidates. Maximal degree in co-relation 2883. Up to 272 conditions per place. [2024-11-09 07:10:41,513 INFO L140 encePairwiseOnDemand]: 1435/1441 looper letters, 47 selfloop transitions, 2 changer transitions 1/340 dead transitions. [2024-11-09 07:10:41,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 340 transitions, 2261 flow [2024-11-09 07:10:41,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:41,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:41,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3560 transitions. [2024-11-09 07:10:41,515 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.823502197547999 [2024-11-09 07:10:41,515 INFO L175 Difference]: Start difference. First operand has 417 places, 344 transitions, 2171 flow. Second operand 3 states and 3560 transitions. [2024-11-09 07:10:41,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 340 transitions, 2261 flow [2024-11-09 07:10:41,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 340 transitions, 1000 flow, removed 630 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:41,530 INFO L231 Difference]: Finished difference. Result has 417 places, 339 transitions, 904 flow [2024-11-09 07:10:41,530 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1441, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=904, PETRI_PLACES=417, PETRI_TRANSITIONS=339} [2024-11-09 07:10:41,530 INFO L277 CegarLoopForPetriNet]: 417 programPoint places, 0 predicate places. [2024-11-09 07:10:41,530 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 339 transitions, 904 flow [2024-11-09 07:10:41,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1170.3333333333333) internal successors, (3511), 3 states have internal predecessors, (3511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:41,531 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:41,531 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] [2024-11-09 07:10:41,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2024-11-09 07:10:41,531 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-09 07:10:41,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:41,531 INFO L85 PathProgramCache]: Analyzing trace with hash -972947834, now seen corresponding path program 1 times [2024-11-09 07:10:41,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:41,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847537853] [2024-11-09 07:10:41,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:41,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:41,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:41,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:41,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847537853] [2024-11-09 07:10:41,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847537853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:41,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:41,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:41,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973610398] [2024-11-09 07:10:41,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:41,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:41,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:41,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:41,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:41,659 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1093 out of 1441 [2024-11-09 07:10:41,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 339 transitions, 904 flow. Second operand has 3 states, 3 states have (on average 1094.0) internal successors, (3282), 3 states have internal predecessors, (3282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:41,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:41,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1093 of 1441 [2024-11-09 07:10:41,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:42,026 INFO L124 PetriNetUnfolderBase]: 39/1697 cut-off events. [2024-11-09 07:10:42,026 INFO L125 PetriNetUnfolderBase]: For 776/776 co-relation queries the response was YES. [2024-11-09 07:10:42,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2121 conditions, 1697 events. 39/1697 cut-off events. For 776/776 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3891 event pairs, 0 based on Foata normal form. 38/1658 useless extension candidates. Maximal degree in co-relation 2060. Up to 195 conditions per place. [2024-11-09 07:10:42,047 INFO L140 encePairwiseOnDemand]: 1435/1441 looper letters, 45 selfloop transitions, 1 changer transitions 24/334 dead transitions. [2024-11-09 07:10:42,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 334 transitions, 990 flow [2024-11-09 07:10:42,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:42,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:42,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3332 transitions. [2024-11-09 07:10:42,049 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7707610455702059 [2024-11-09 07:10:42,049 INFO L175 Difference]: Start difference. First operand has 417 places, 339 transitions, 904 flow. Second operand 3 states and 3332 transitions. [2024-11-09 07:10:42,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 334 transitions, 990 flow [2024-11-09 07:10:42,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 334 transitions, 986 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:42,053 INFO L231 Difference]: Finished difference. Result has 411 places, 310 transitions, 842 flow [2024-11-09 07:10:42,053 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1441, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=842, PETRI_PLACES=411, PETRI_TRANSITIONS=310} [2024-11-09 07:10:42,053 INFO L277 CegarLoopForPetriNet]: 417 programPoint places, -6 predicate places. [2024-11-09 07:10:42,053 INFO L471 AbstractCegarLoop]: Abstraction has has 411 places, 310 transitions, 842 flow [2024-11-09 07:10:42,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1094.0) internal successors, (3282), 3 states have internal predecessors, (3282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:42,054 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:42,054 INFO L204 CegarLoopForPetriNet]: trace histogram [38, 38, 38, 38, 38, 38, 38, 37, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:42,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2024-11-09 07:10:42,054 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-09 07:10:42,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:42,054 INFO L85 PathProgramCache]: Analyzing trace with hash -745279589, now seen corresponding path program 1 times [2024-11-09 07:10:42,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:42,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591453680] [2024-11-09 07:10:42,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:42,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:42,190 INFO L134 CoverageAnalysis]: Checked inductivity of 9620 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 9509 trivial. 0 not checked. [2024-11-09 07:10:42,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:42,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591453680] [2024-11-09 07:10:42,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591453680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:42,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:42,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:42,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810882341] [2024-11-09 07:10:42,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:42,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:42,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:42,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:42,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:42,316 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1204 out of 1441 [2024-11-09 07:10:42,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 310 transitions, 842 flow. Second operand has 5 states, 5 states have (on average 1213.4) internal successors, (6067), 5 states have internal predecessors, (6067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:42,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:42,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1204 of 1441 [2024-11-09 07:10:42,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:42,530 INFO L124 PetriNetUnfolderBase]: 0/798 cut-off events. [2024-11-09 07:10:42,530 INFO L125 PetriNetUnfolderBase]: For 775/775 co-relation queries the response was YES. [2024-11-09 07:10:42,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1072 conditions, 798 events. 0/798 cut-off events. For 775/775 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 471 event pairs, 0 based on Foata normal form. 1/798 useless extension candidates. Maximal degree in co-relation 0. Up to 119 conditions per place. [2024-11-09 07:10:42,531 INFO L140 encePairwiseOnDemand]: 1436/1441 looper letters, 45 selfloop transitions, 2 changer transitions 3/312 dead transitions. [2024-11-09 07:10:42,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 312 transitions, 946 flow [2024-11-09 07:10:42,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:42,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:42,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6071 transitions. [2024-11-09 07:10:42,533 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8426092990978488 [2024-11-09 07:10:42,533 INFO L175 Difference]: Start difference. First operand has 411 places, 310 transitions, 842 flow. Second operand 5 states and 6071 transitions. [2024-11-09 07:10:42,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 312 transitions, 946 flow [2024-11-09 07:10:42,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 312 transitions, 945 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:42,537 INFO L231 Difference]: Finished difference. Result has 391 places, 309 transitions, 847 flow [2024-11-09 07:10:42,537 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1441, PETRI_DIFFERENCE_MINUEND_FLOW=841, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=847, PETRI_PLACES=391, PETRI_TRANSITIONS=309} [2024-11-09 07:10:42,538 INFO L277 CegarLoopForPetriNet]: 417 programPoint places, -26 predicate places. [2024-11-09 07:10:42,538 INFO L471 AbstractCegarLoop]: Abstraction has has 391 places, 309 transitions, 847 flow [2024-11-09 07:10:42,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1213.4) internal successors, (6067), 5 states have internal predecessors, (6067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:42,539 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:42,539 INFO L204 CegarLoopForPetriNet]: trace histogram [38, 38, 38, 38, 38, 38, 38, 37, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:42,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2024-11-09 07:10:42,539 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-09 07:10:42,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:42,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1748900882, now seen corresponding path program 1 times [2024-11-09 07:10:42,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:42,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242346662] [2024-11-09 07:10:42,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:42,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:42,595 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:42,759 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:42,759 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:42,760 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (44 of 45 remaining) [2024-11-09 07:10:42,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (43 of 45 remaining) [2024-11-09 07:10:42,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (42 of 45 remaining) [2024-11-09 07:10:42,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (41 of 45 remaining) [2024-11-09 07:10:42,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (40 of 45 remaining) [2024-11-09 07:10:42,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 45 remaining) [2024-11-09 07:10:42,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 45 remaining) [2024-11-09 07:10:42,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 45 remaining) [2024-11-09 07:10:42,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 45 remaining) [2024-11-09 07:10:42,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 45 remaining) [2024-11-09 07:10:42,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 45 remaining) [2024-11-09 07:10:42,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 45 remaining) [2024-11-09 07:10:42,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 45 remaining) [2024-11-09 07:10:42,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 45 remaining) [2024-11-09 07:10:42,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 45 remaining) [2024-11-09 07:10:42,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 45 remaining) [2024-11-09 07:10:42,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 45 remaining) [2024-11-09 07:10:42,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 45 remaining) [2024-11-09 07:10:42,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 45 remaining) [2024-11-09 07:10:42,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 45 remaining) [2024-11-09 07:10:42,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 45 remaining) [2024-11-09 07:10:42,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 45 remaining) [2024-11-09 07:10:42,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 45 remaining) [2024-11-09 07:10:42,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 45 remaining) [2024-11-09 07:10:42,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 45 remaining) [2024-11-09 07:10:42,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 45 remaining) [2024-11-09 07:10:42,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 45 remaining) [2024-11-09 07:10:42,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 45 remaining) [2024-11-09 07:10:42,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 45 remaining) [2024-11-09 07:10:42,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 45 remaining) [2024-11-09 07:10:42,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 45 remaining) [2024-11-09 07:10:42,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 45 remaining) [2024-11-09 07:10:42,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 45 remaining) [2024-11-09 07:10:42,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 45 remaining) [2024-11-09 07:10:42,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 45 remaining) [2024-11-09 07:10:42,762 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 45 remaining) [2024-11-09 07:10:42,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 45 remaining) [2024-11-09 07:10:42,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 45 remaining) [2024-11-09 07:10:42,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 45 remaining) [2024-11-09 07:10:42,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 45 remaining) [2024-11-09 07:10:42,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 45 remaining) [2024-11-09 07:10:42,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 45 remaining) [2024-11-09 07:10:42,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 45 remaining) [2024-11-09 07:10:42,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 45 remaining) [2024-11-09 07:10:42,763 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 45 remaining) [2024-11-09 07:10:42,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2024-11-09 07:10:42,763 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:42,764 WARN L244 ceAbstractionStarter]: 37 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:42,764 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 38 thread instances. [2024-11-09 07:10:42,886 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:42,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1477 places, 1478 transitions, 6072 flow [2024-11-09 07:10:43,504 INFO L124 PetriNetUnfolderBase]: 197/2527 cut-off events. [2024-11-09 07:10:43,504 INFO L125 PetriNetUnfolderBase]: For 9842/9842 co-relation queries the response was YES. [2024-11-09 07:10:43,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3461 conditions, 2527 events. 197/2527 cut-off events. For 9842/9842 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6975 event pairs, 0 based on Foata normal form. 0/2209 useless extension candidates. Maximal degree in co-relation 3384. Up to 78 conditions per place. [2024-11-09 07:10:43,541 INFO L82 GeneralOperation]: Start removeDead. Operand has 1477 places, 1478 transitions, 6072 flow [2024-11-09 07:10:43,546 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 426 places, 351 transitions, 2263 flow [2024-11-09 07:10:43,546 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:43,546 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:43,547 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2024-11-09 07:10:43,548 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:43,548 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:43,548 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:43,548 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:43,548 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:43,548 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2024-11-09 07:10:43,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:43,549 INFO L85 PathProgramCache]: Analyzing trace with hash 183090179, now seen corresponding path program 1 times [2024-11-09 07:10:43,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:43,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992956558] [2024-11-09 07:10:43,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:43,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:43,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:43,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:43,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992956558] [2024-11-09 07:10:43,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992956558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:43,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:43,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:43,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598415013] [2024-11-09 07:10:43,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:43,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:43,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:43,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:43,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:43,689 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1199 out of 1478 [2024-11-09 07:10:43,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 351 transitions, 2263 flow. Second operand has 3 states, 3 states have (on average 1200.3333333333333) internal successors, (3601), 3 states have internal predecessors, (3601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:43,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:43,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1199 of 1478 [2024-11-09 07:10:43,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:44,135 INFO L124 PetriNetUnfolderBase]: 79/1940 cut-off events. [2024-11-09 07:10:44,136 INFO L125 PetriNetUnfolderBase]: For 10622/10622 co-relation queries the response was YES. [2024-11-09 07:10:44,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3118 conditions, 1940 events. 79/1940 cut-off events. For 10622/10622 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5507 event pairs, 39 based on Foata normal form. 79/1858 useless extension candidates. Maximal degree in co-relation 2979. Up to 279 conditions per place. [2024-11-09 07:10:44,164 INFO L140 encePairwiseOnDemand]: 1472/1478 looper letters, 48 selfloop transitions, 2 changer transitions 1/347 dead transitions. [2024-11-09 07:10:44,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 347 transitions, 2355 flow [2024-11-09 07:10:44,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:44,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:44,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3651 transitions. [2024-11-09 07:10:44,166 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8234100135317998 [2024-11-09 07:10:44,166 INFO L175 Difference]: Start difference. First operand has 426 places, 351 transitions, 2263 flow. Second operand 3 states and 3651 transitions. [2024-11-09 07:10:44,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 347 transitions, 2355 flow [2024-11-09 07:10:44,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 347 transitions, 1022 flow, removed 666 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:44,181 INFO L231 Difference]: Finished difference. Result has 426 places, 346 transitions, 924 flow [2024-11-09 07:10:44,182 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1478, PETRI_DIFFERENCE_MINUEND_FLOW=922, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=924, PETRI_PLACES=426, PETRI_TRANSITIONS=346} [2024-11-09 07:10:44,182 INFO L277 CegarLoopForPetriNet]: 426 programPoint places, 0 predicate places. [2024-11-09 07:10:44,182 INFO L471 AbstractCegarLoop]: Abstraction has has 426 places, 346 transitions, 924 flow [2024-11-09 07:10:44,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1200.3333333333333) internal successors, (3601), 3 states have internal predecessors, (3601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:44,182 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:44,182 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] [2024-11-09 07:10:44,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2024-11-09 07:10:44,182 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2024-11-09 07:10:44,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:44,183 INFO L85 PathProgramCache]: Analyzing trace with hash -9320954, now seen corresponding path program 1 times [2024-11-09 07:10:44,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:44,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386790919] [2024-11-09 07:10:44,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:44,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:44,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:44,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:44,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386790919] [2024-11-09 07:10:44,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386790919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:44,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:44,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:44,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346374098] [2024-11-09 07:10:44,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:44,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:44,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:44,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:44,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:44,300 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1121 out of 1478 [2024-11-09 07:10:44,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 346 transitions, 924 flow. Second operand has 3 states, 3 states have (on average 1122.0) internal successors, (3366), 3 states have internal predecessors, (3366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:44,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:44,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1121 of 1478 [2024-11-09 07:10:44,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:44,961 INFO L124 PetriNetUnfolderBase]: 40/1741 cut-off events. [2024-11-09 07:10:44,961 INFO L125 PetriNetUnfolderBase]: For 816/816 co-relation queries the response was YES. [2024-11-09 07:10:44,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2176 conditions, 1741 events. 40/1741 cut-off events. For 816/816 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4142 event pairs, 0 based on Foata normal form. 39/1701 useless extension candidates. Maximal degree in co-relation 2114. Up to 200 conditions per place. [2024-11-09 07:10:44,977 INFO L140 encePairwiseOnDemand]: 1472/1478 looper letters, 46 selfloop transitions, 1 changer transitions 24/341 dead transitions. [2024-11-09 07:10:44,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 341 transitions, 1012 flow [2024-11-09 07:10:44,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:44,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:44,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3417 transitions. [2024-11-09 07:10:44,980 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7706359945872802 [2024-11-09 07:10:44,980 INFO L175 Difference]: Start difference. First operand has 426 places, 346 transitions, 924 flow. Second operand 3 states and 3417 transitions. [2024-11-09 07:10:44,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 341 transitions, 1012 flow [2024-11-09 07:10:44,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 341 transitions, 1008 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:44,985 INFO L231 Difference]: Finished difference. Result has 420 places, 317 transitions, 862 flow [2024-11-09 07:10:44,985 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1478, PETRI_DIFFERENCE_MINUEND_FLOW=910, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=862, PETRI_PLACES=420, PETRI_TRANSITIONS=317} [2024-11-09 07:10:44,986 INFO L277 CegarLoopForPetriNet]: 426 programPoint places, -6 predicate places. [2024-11-09 07:10:44,986 INFO L471 AbstractCegarLoop]: Abstraction has has 420 places, 317 transitions, 862 flow [2024-11-09 07:10:44,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1122.0) internal successors, (3366), 3 states have internal predecessors, (3366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:44,986 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:44,986 INFO L204 CegarLoopForPetriNet]: trace histogram [39, 39, 39, 39, 39, 39, 39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:44,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2024-11-09 07:10:44,987 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2024-11-09 07:10:44,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:44,987 INFO L85 PathProgramCache]: Analyzing trace with hash -535414817, now seen corresponding path program 1 times [2024-11-09 07:10:44,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:44,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28366956] [2024-11-09 07:10:44,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:44,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:45,205 INFO L134 CoverageAnalysis]: Checked inductivity of 10146 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 10032 trivial. 0 not checked. [2024-11-09 07:10:45,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:45,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28366956] [2024-11-09 07:10:45,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28366956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:45,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:45,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:45,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228850002] [2024-11-09 07:10:45,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:45,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:45,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:45,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:45,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:45,362 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1235 out of 1478 [2024-11-09 07:10:45,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 317 transitions, 862 flow. Second operand has 5 states, 5 states have (on average 1244.6) internal successors, (6223), 5 states have internal predecessors, (6223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:45,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:45,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1235 of 1478 [2024-11-09 07:10:45,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:45,698 INFO L124 PetriNetUnfolderBase]: 0/818 cut-off events. [2024-11-09 07:10:45,698 INFO L125 PetriNetUnfolderBase]: For 815/815 co-relation queries the response was YES. [2024-11-09 07:10:45,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1099 conditions, 818 events. 0/818 cut-off events. For 815/815 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 484 event pairs, 0 based on Foata normal form. 1/818 useless extension candidates. Maximal degree in co-relation 0. Up to 122 conditions per place. [2024-11-09 07:10:45,700 INFO L140 encePairwiseOnDemand]: 1473/1478 looper letters, 46 selfloop transitions, 2 changer transitions 3/319 dead transitions. [2024-11-09 07:10:45,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 319 transitions, 968 flow [2024-11-09 07:10:45,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:45,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:45,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6227 transitions. [2024-11-09 07:10:45,704 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8426251691474966 [2024-11-09 07:10:45,704 INFO L175 Difference]: Start difference. First operand has 420 places, 317 transitions, 862 flow. Second operand 5 states and 6227 transitions. [2024-11-09 07:10:45,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 319 transitions, 968 flow [2024-11-09 07:10:45,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 319 transitions, 967 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:45,709 INFO L231 Difference]: Finished difference. Result has 400 places, 316 transitions, 867 flow [2024-11-09 07:10:45,709 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1478, PETRI_DIFFERENCE_MINUEND_FLOW=861, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=867, PETRI_PLACES=400, PETRI_TRANSITIONS=316} [2024-11-09 07:10:45,709 INFO L277 CegarLoopForPetriNet]: 426 programPoint places, -26 predicate places. [2024-11-09 07:10:45,710 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 316 transitions, 867 flow [2024-11-09 07:10:45,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1244.6) internal successors, (6223), 5 states have internal predecessors, (6223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:45,710 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:45,710 INFO L204 CegarLoopForPetriNet]: trace histogram [39, 39, 39, 39, 39, 39, 39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:45,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2024-11-09 07:10:45,711 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2024-11-09 07:10:45,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:45,711 INFO L85 PathProgramCache]: Analyzing trace with hash 285243308, now seen corresponding path program 1 times [2024-11-09 07:10:45,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:45,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800159459] [2024-11-09 07:10:45,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:45,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:45,812 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:45,976 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:45,976 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:45,976 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 46 remaining) [2024-11-09 07:10:45,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2024-11-09 07:10:45,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2024-11-09 07:10:45,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2024-11-09 07:10:45,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2024-11-09 07:10:45,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2024-11-09 07:10:45,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 46 remaining) [2024-11-09 07:10:45,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2024-11-09 07:10:45,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2024-11-09 07:10:45,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2024-11-09 07:10:45,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2024-11-09 07:10:45,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2024-11-09 07:10:45,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2024-11-09 07:10:45,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2024-11-09 07:10:45,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2024-11-09 07:10:45,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2024-11-09 07:10:45,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2024-11-09 07:10:45,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2024-11-09 07:10:45,977 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2024-11-09 07:10:45,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2024-11-09 07:10:45,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2024-11-09 07:10:45,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2024-11-09 07:10:45,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2024-11-09 07:10:45,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2024-11-09 07:10:45,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2024-11-09 07:10:45,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2024-11-09 07:10:45,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2024-11-09 07:10:45,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2024-11-09 07:10:45,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2024-11-09 07:10:45,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2024-11-09 07:10:45,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2024-11-09 07:10:45,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2024-11-09 07:10:45,978 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2024-11-09 07:10:45,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2024-11-09 07:10:45,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2024-11-09 07:10:45,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2024-11-09 07:10:45,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2024-11-09 07:10:45,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2024-11-09 07:10:45,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2024-11-09 07:10:45,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2024-11-09 07:10:45,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2024-11-09 07:10:45,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2024-11-09 07:10:45,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2024-11-09 07:10:45,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2024-11-09 07:10:45,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2024-11-09 07:10:45,979 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2024-11-09 07:10:45,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2024-11-09 07:10:45,980 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:45,980 WARN L244 ceAbstractionStarter]: 38 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:45,980 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 39 thread instances. [2024-11-09 07:10:46,110 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:46,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1514 places, 1515 transitions, 6306 flow [2024-11-09 07:10:46,780 INFO L124 PetriNetUnfolderBase]: 202/2591 cut-off events. [2024-11-09 07:10:46,780 INFO L125 PetriNetUnfolderBase]: For 10621/10621 co-relation queries the response was YES. [2024-11-09 07:10:46,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3569 conditions, 2591 events. 202/2591 cut-off events. For 10621/10621 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7178 event pairs, 0 based on Foata normal form. 0/2265 useless extension candidates. Maximal degree in co-relation 3490. Up to 80 conditions per place. [2024-11-09 07:10:46,822 INFO L82 GeneralOperation]: Start removeDead. Operand has 1514 places, 1515 transitions, 6306 flow [2024-11-09 07:10:46,827 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 435 places, 358 transitions, 2357 flow [2024-11-09 07:10:46,827 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:46,828 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:46,828 INFO L334 AbstractCegarLoop]: Starting to check reachability of 47 error locations. [2024-11-09 07:10:46,829 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:46,829 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:46,829 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:46,829 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:46,829 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:46,829 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-09 07:10:46,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:46,829 INFO L85 PathProgramCache]: Analyzing trace with hash -194246909, now seen corresponding path program 1 times [2024-11-09 07:10:46,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:46,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436277138] [2024-11-09 07:10:46,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:46,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:46,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:46,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:46,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436277138] [2024-11-09 07:10:46,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436277138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:46,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:46,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:46,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767559182] [2024-11-09 07:10:46,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:46,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:46,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:46,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:46,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:47,156 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1229 out of 1515 [2024-11-09 07:10:47,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 358 transitions, 2357 flow. Second operand has 3 states, 3 states have (on average 1230.3333333333333) internal successors, (3691), 3 states have internal predecessors, (3691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:47,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:47,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1229 of 1515 [2024-11-09 07:10:47,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:47,616 INFO L124 PetriNetUnfolderBase]: 81/1989 cut-off events. [2024-11-09 07:10:47,616 INFO L125 PetriNetUnfolderBase]: For 11441/11441 co-relation queries the response was YES. [2024-11-09 07:10:47,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3217 conditions, 1989 events. 81/1989 cut-off events. For 11441/11441 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5538 event pairs, 40 based on Foata normal form. 41/1865 useless extension candidates. Maximal degree in co-relation 3076. Up to 286 conditions per place. [2024-11-09 07:10:47,647 INFO L140 encePairwiseOnDemand]: 1509/1515 looper letters, 49 selfloop transitions, 2 changer transitions 1/354 dead transitions. [2024-11-09 07:10:47,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 354 transitions, 2451 flow [2024-11-09 07:10:47,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:47,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:47,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3742 transitions. [2024-11-09 07:10:47,648 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8233223322332234 [2024-11-09 07:10:47,648 INFO L175 Difference]: Start difference. First operand has 435 places, 358 transitions, 2357 flow. Second operand 3 states and 3742 transitions. [2024-11-09 07:10:47,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 354 transitions, 2451 flow [2024-11-09 07:10:47,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 354 transitions, 1044 flow, removed 703 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:47,666 INFO L231 Difference]: Finished difference. Result has 435 places, 353 transitions, 944 flow [2024-11-09 07:10:47,666 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1515, PETRI_DIFFERENCE_MINUEND_FLOW=942, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=944, PETRI_PLACES=435, PETRI_TRANSITIONS=353} [2024-11-09 07:10:47,666 INFO L277 CegarLoopForPetriNet]: 435 programPoint places, 0 predicate places. [2024-11-09 07:10:47,666 INFO L471 AbstractCegarLoop]: Abstraction has has 435 places, 353 transitions, 944 flow [2024-11-09 07:10:47,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1230.3333333333333) internal successors, (3691), 3 states have internal predecessors, (3691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:47,667 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:47,667 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:47,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2024-11-09 07:10:47,667 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-09 07:10:47,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:47,667 INFO L85 PathProgramCache]: Analyzing trace with hash 2073965510, now seen corresponding path program 1 times [2024-11-09 07:10:47,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:47,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708796897] [2024-11-09 07:10:47,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:47,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:47,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:47,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:47,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708796897] [2024-11-09 07:10:47,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708796897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:47,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:47,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:47,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100354484] [2024-11-09 07:10:47,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:47,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:47,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:47,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:47,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:47,824 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1149 out of 1515 [2024-11-09 07:10:47,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 353 transitions, 944 flow. Second operand has 3 states, 3 states have (on average 1150.0) internal successors, (3450), 3 states have internal predecessors, (3450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:47,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:47,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1149 of 1515 [2024-11-09 07:10:47,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:48,231 INFO L124 PetriNetUnfolderBase]: 41/1785 cut-off events. [2024-11-09 07:10:48,232 INFO L125 PetriNetUnfolderBase]: For 857/857 co-relation queries the response was YES. [2024-11-09 07:10:48,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2231 conditions, 1785 events. 41/1785 cut-off events. For 857/857 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4128 event pairs, 0 based on Foata normal form. 40/1744 useless extension candidates. Maximal degree in co-relation 2168. Up to 205 conditions per place. [2024-11-09 07:10:48,257 INFO L140 encePairwiseOnDemand]: 1509/1515 looper letters, 47 selfloop transitions, 1 changer transitions 24/348 dead transitions. [2024-11-09 07:10:48,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 348 transitions, 1034 flow [2024-11-09 07:10:48,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:48,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:48,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3502 transitions. [2024-11-09 07:10:48,259 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7705170517051705 [2024-11-09 07:10:48,259 INFO L175 Difference]: Start difference. First operand has 435 places, 353 transitions, 944 flow. Second operand 3 states and 3502 transitions. [2024-11-09 07:10:48,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 348 transitions, 1034 flow [2024-11-09 07:10:48,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 348 transitions, 1030 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:48,263 INFO L231 Difference]: Finished difference. Result has 429 places, 324 transitions, 882 flow [2024-11-09 07:10:48,263 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1515, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=882, PETRI_PLACES=429, PETRI_TRANSITIONS=324} [2024-11-09 07:10:48,263 INFO L277 CegarLoopForPetriNet]: 435 programPoint places, -6 predicate places. [2024-11-09 07:10:48,263 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 324 transitions, 882 flow [2024-11-09 07:10:48,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1150.0) internal successors, (3450), 3 states have internal predecessors, (3450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:48,264 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:48,264 INFO L204 CegarLoopForPetriNet]: trace histogram [40, 40, 40, 40, 40, 40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:48,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2024-11-09 07:10:48,264 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-09 07:10:48,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:48,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1040200721, now seen corresponding path program 1 times [2024-11-09 07:10:48,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:48,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891287568] [2024-11-09 07:10:48,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:48,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:48,404 INFO L134 CoverageAnalysis]: Checked inductivity of 10686 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 10569 trivial. 0 not checked. [2024-11-09 07:10:48,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:48,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891287568] [2024-11-09 07:10:48,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891287568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:48,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:48,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:48,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300393716] [2024-11-09 07:10:48,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:48,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:48,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:48,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:48,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:48,530 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1266 out of 1515 [2024-11-09 07:10:48,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 324 transitions, 882 flow. Second operand has 5 states, 5 states have (on average 1275.8) internal successors, (6379), 5 states have internal predecessors, (6379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:48,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:48,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1266 of 1515 [2024-11-09 07:10:48,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:48,761 INFO L124 PetriNetUnfolderBase]: 0/838 cut-off events. [2024-11-09 07:10:48,761 INFO L125 PetriNetUnfolderBase]: For 856/856 co-relation queries the response was YES. [2024-11-09 07:10:48,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1126 conditions, 838 events. 0/838 cut-off events. For 856/856 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 495 event pairs, 0 based on Foata normal form. 1/838 useless extension candidates. Maximal degree in co-relation 0. Up to 125 conditions per place. [2024-11-09 07:10:48,762 INFO L140 encePairwiseOnDemand]: 1510/1515 looper letters, 47 selfloop transitions, 2 changer transitions 3/326 dead transitions. [2024-11-09 07:10:48,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 326 transitions, 990 flow [2024-11-09 07:10:48,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:48,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:48,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6383 transitions. [2024-11-09 07:10:48,765 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8426402640264027 [2024-11-09 07:10:48,765 INFO L175 Difference]: Start difference. First operand has 429 places, 324 transitions, 882 flow. Second operand 5 states and 6383 transitions. [2024-11-09 07:10:48,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 326 transitions, 990 flow [2024-11-09 07:10:48,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 326 transitions, 989 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:48,768 INFO L231 Difference]: Finished difference. Result has 409 places, 323 transitions, 887 flow [2024-11-09 07:10:48,768 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1515, PETRI_DIFFERENCE_MINUEND_FLOW=881, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=887, PETRI_PLACES=409, PETRI_TRANSITIONS=323} [2024-11-09 07:10:48,768 INFO L277 CegarLoopForPetriNet]: 435 programPoint places, -26 predicate places. [2024-11-09 07:10:48,769 INFO L471 AbstractCegarLoop]: Abstraction has has 409 places, 323 transitions, 887 flow [2024-11-09 07:10:48,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1275.8) internal successors, (6379), 5 states have internal predecessors, (6379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:48,769 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:48,769 INFO L204 CegarLoopForPetriNet]: trace histogram [40, 40, 40, 40, 40, 40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:48,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2024-11-09 07:10:48,769 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-09 07:10:48,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:48,770 INFO L85 PathProgramCache]: Analyzing trace with hash 407424913, now seen corresponding path program 1 times [2024-11-09 07:10:48,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:48,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896182801] [2024-11-09 07:10:48,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:48,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:48,834 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:49,046 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:49,046 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:49,047 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 47 remaining) [2024-11-09 07:10:49,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (45 of 47 remaining) [2024-11-09 07:10:49,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (44 of 47 remaining) [2024-11-09 07:10:49,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (43 of 47 remaining) [2024-11-09 07:10:49,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (42 of 47 remaining) [2024-11-09 07:10:49,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (41 of 47 remaining) [2024-11-09 07:10:49,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 47 remaining) [2024-11-09 07:10:49,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 47 remaining) [2024-11-09 07:10:49,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 47 remaining) [2024-11-09 07:10:49,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 47 remaining) [2024-11-09 07:10:49,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 47 remaining) [2024-11-09 07:10:49,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 47 remaining) [2024-11-09 07:10:49,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 47 remaining) [2024-11-09 07:10:49,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 47 remaining) [2024-11-09 07:10:49,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 47 remaining) [2024-11-09 07:10:49,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 47 remaining) [2024-11-09 07:10:49,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 47 remaining) [2024-11-09 07:10:49,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 47 remaining) [2024-11-09 07:10:49,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 47 remaining) [2024-11-09 07:10:49,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 47 remaining) [2024-11-09 07:10:49,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 47 remaining) [2024-11-09 07:10:49,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 47 remaining) [2024-11-09 07:10:49,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 47 remaining) [2024-11-09 07:10:49,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 47 remaining) [2024-11-09 07:10:49,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 47 remaining) [2024-11-09 07:10:49,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 47 remaining) [2024-11-09 07:10:49,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 47 remaining) [2024-11-09 07:10:49,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 47 remaining) [2024-11-09 07:10:49,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 47 remaining) [2024-11-09 07:10:49,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 47 remaining) [2024-11-09 07:10:49,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 47 remaining) [2024-11-09 07:10:49,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 47 remaining) [2024-11-09 07:10:49,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 47 remaining) [2024-11-09 07:10:49,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 47 remaining) [2024-11-09 07:10:49,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 47 remaining) [2024-11-09 07:10:49,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 47 remaining) [2024-11-09 07:10:49,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 47 remaining) [2024-11-09 07:10:49,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 47 remaining) [2024-11-09 07:10:49,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 47 remaining) [2024-11-09 07:10:49,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 47 remaining) [2024-11-09 07:10:49,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 47 remaining) [2024-11-09 07:10:49,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 47 remaining) [2024-11-09 07:10:49,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 47 remaining) [2024-11-09 07:10:49,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 47 remaining) [2024-11-09 07:10:49,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 47 remaining) [2024-11-09 07:10:49,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 47 remaining) [2024-11-09 07:10:49,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 47 remaining) [2024-11-09 07:10:49,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2024-11-09 07:10:49,050 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:49,051 WARN L244 ceAbstractionStarter]: 39 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:49,051 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 40 thread instances. [2024-11-09 07:10:49,190 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:49,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1551 places, 1552 transitions, 6544 flow [2024-11-09 07:10:49,876 INFO L124 PetriNetUnfolderBase]: 207/2655 cut-off events. [2024-11-09 07:10:49,876 INFO L125 PetriNetUnfolderBase]: For 11440/11440 co-relation queries the response was YES. [2024-11-09 07:10:49,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3678 conditions, 2655 events. 207/2655 cut-off events. For 11440/11440 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7476 event pairs, 0 based on Foata normal form. 0/2321 useless extension candidates. Maximal degree in co-relation 3597. Up to 82 conditions per place. [2024-11-09 07:10:49,905 INFO L82 GeneralOperation]: Start removeDead. Operand has 1551 places, 1552 transitions, 6544 flow [2024-11-09 07:10:49,910 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 444 places, 365 transitions, 2453 flow [2024-11-09 07:10:49,910 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:49,911 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:49,911 INFO L334 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2024-11-09 07:10:49,912 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:49,912 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:49,912 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:49,912 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:49,912 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:49,912 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-09 07:10:49,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:49,912 INFO L85 PathProgramCache]: Analyzing trace with hash -620488957, now seen corresponding path program 1 times [2024-11-09 07:10:49,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:49,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812607078] [2024-11-09 07:10:49,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:49,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:49,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:49,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:49,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:49,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812607078] [2024-11-09 07:10:49,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812607078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:49,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:49,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:49,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881944071] [2024-11-09 07:10:49,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:49,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:49,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:49,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:49,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:50,059 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1259 out of 1552 [2024-11-09 07:10:50,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 365 transitions, 2453 flow. Second operand has 3 states, 3 states have (on average 1260.3333333333333) internal successors, (3781), 3 states have internal predecessors, (3781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:50,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:50,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1259 of 1552 [2024-11-09 07:10:50,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:50,538 INFO L124 PetriNetUnfolderBase]: 83/2038 cut-off events. [2024-11-09 07:10:50,538 INFO L125 PetriNetUnfolderBase]: For 12301/12301 co-relation queries the response was YES. [2024-11-09 07:10:50,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3317 conditions, 2038 events. 83/2038 cut-off events. For 12301/12301 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5611 event pairs, 41 based on Foata normal form. 83/1952 useless extension candidates. Maximal degree in co-relation 3174. Up to 293 conditions per place. [2024-11-09 07:10:50,573 INFO L140 encePairwiseOnDemand]: 1546/1552 looper letters, 50 selfloop transitions, 2 changer transitions 1/361 dead transitions. [2024-11-09 07:10:50,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 361 transitions, 2549 flow [2024-11-09 07:10:50,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:50,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:50,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3833 transitions. [2024-11-09 07:10:50,575 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8232388316151202 [2024-11-09 07:10:50,575 INFO L175 Difference]: Start difference. First operand has 444 places, 365 transitions, 2453 flow. Second operand 3 states and 3833 transitions. [2024-11-09 07:10:50,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 361 transitions, 2549 flow [2024-11-09 07:10:50,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 361 transitions, 1066 flow, removed 741 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:50,597 INFO L231 Difference]: Finished difference. Result has 444 places, 360 transitions, 964 flow [2024-11-09 07:10:50,597 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1552, PETRI_DIFFERENCE_MINUEND_FLOW=962, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=964, PETRI_PLACES=444, PETRI_TRANSITIONS=360} [2024-11-09 07:10:50,597 INFO L277 CegarLoopForPetriNet]: 444 programPoint places, 0 predicate places. [2024-11-09 07:10:50,597 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 360 transitions, 964 flow [2024-11-09 07:10:50,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1260.3333333333333) internal successors, (3781), 3 states have internal predecessors, (3781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:50,598 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:50,598 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] [2024-11-09 07:10:50,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2024-11-09 07:10:50,598 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-09 07:10:50,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:50,598 INFO L85 PathProgramCache]: Analyzing trace with hash 981944262, now seen corresponding path program 1 times [2024-11-09 07:10:50,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:50,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965140172] [2024-11-09 07:10:50,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:50,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:50,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:50,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:50,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965140172] [2024-11-09 07:10:50,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965140172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:50,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:50,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:50,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070500606] [2024-11-09 07:10:50,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:50,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:50,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:50,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:50,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:50,724 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1177 out of 1552 [2024-11-09 07:10:50,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 360 transitions, 964 flow. Second operand has 3 states, 3 states have (on average 1178.0) internal successors, (3534), 3 states have internal predecessors, (3534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:50,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:50,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1177 of 1552 [2024-11-09 07:10:50,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:51,157 INFO L124 PetriNetUnfolderBase]: 42/1829 cut-off events. [2024-11-09 07:10:51,157 INFO L125 PetriNetUnfolderBase]: For 899/899 co-relation queries the response was YES. [2024-11-09 07:10:51,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2286 conditions, 1829 events. 42/1829 cut-off events. For 899/899 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4156 event pairs, 0 based on Foata normal form. 41/1787 useless extension candidates. Maximal degree in co-relation 2222. Up to 210 conditions per place. [2024-11-09 07:10:51,182 INFO L140 encePairwiseOnDemand]: 1546/1552 looper letters, 48 selfloop transitions, 1 changer transitions 24/355 dead transitions. [2024-11-09 07:10:51,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 355 transitions, 1056 flow [2024-11-09 07:10:51,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:51,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:51,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3587 transitions. [2024-11-09 07:10:51,184 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7704037800687286 [2024-11-09 07:10:51,184 INFO L175 Difference]: Start difference. First operand has 444 places, 360 transitions, 964 flow. Second operand 3 states and 3587 transitions. [2024-11-09 07:10:51,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 355 transitions, 1056 flow [2024-11-09 07:10:51,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 355 transitions, 1052 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:51,188 INFO L231 Difference]: Finished difference. Result has 438 places, 331 transitions, 902 flow [2024-11-09 07:10:51,188 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1552, PETRI_DIFFERENCE_MINUEND_FLOW=950, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=902, PETRI_PLACES=438, PETRI_TRANSITIONS=331} [2024-11-09 07:10:51,188 INFO L277 CegarLoopForPetriNet]: 444 programPoint places, -6 predicate places. [2024-11-09 07:10:51,188 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 331 transitions, 902 flow [2024-11-09 07:10:51,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1178.0) internal successors, (3534), 3 states have internal predecessors, (3534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:51,189 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:51,189 INFO L204 CegarLoopForPetriNet]: trace histogram [41, 41, 41, 41, 41, 41, 41, 40, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:51,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2024-11-09 07:10:51,189 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-09 07:10:51,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:51,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1789906219, now seen corresponding path program 1 times [2024-11-09 07:10:51,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:51,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382456515] [2024-11-09 07:10:51,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:51,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:51,331 INFO L134 CoverageAnalysis]: Checked inductivity of 11240 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 11120 trivial. 0 not checked. [2024-11-09 07:10:51,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:51,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382456515] [2024-11-09 07:10:51,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382456515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:51,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:51,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:51,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945363370] [2024-11-09 07:10:51,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:51,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:51,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:51,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:51,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:51,446 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1297 out of 1552 [2024-11-09 07:10:51,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 331 transitions, 902 flow. Second operand has 5 states, 5 states have (on average 1307.0) internal successors, (6535), 5 states have internal predecessors, (6535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:51,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:51,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1297 of 1552 [2024-11-09 07:10:51,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:51,780 INFO L124 PetriNetUnfolderBase]: 0/858 cut-off events. [2024-11-09 07:10:51,780 INFO L125 PetriNetUnfolderBase]: For 898/898 co-relation queries the response was YES. [2024-11-09 07:10:51,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1153 conditions, 858 events. 0/858 cut-off events. For 898/898 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 507 event pairs, 0 based on Foata normal form. 1/858 useless extension candidates. Maximal degree in co-relation 0. Up to 128 conditions per place. [2024-11-09 07:10:51,781 INFO L140 encePairwiseOnDemand]: 1547/1552 looper letters, 48 selfloop transitions, 2 changer transitions 3/333 dead transitions. [2024-11-09 07:10:51,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 333 transitions, 1012 flow [2024-11-09 07:10:51,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:51,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:51,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6539 transitions. [2024-11-09 07:10:51,784 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8426546391752577 [2024-11-09 07:10:51,784 INFO L175 Difference]: Start difference. First operand has 438 places, 331 transitions, 902 flow. Second operand 5 states and 6539 transitions. [2024-11-09 07:10:51,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 333 transitions, 1012 flow [2024-11-09 07:10:51,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 333 transitions, 1011 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:51,789 INFO L231 Difference]: Finished difference. Result has 418 places, 330 transitions, 907 flow [2024-11-09 07:10:51,789 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1552, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=907, PETRI_PLACES=418, PETRI_TRANSITIONS=330} [2024-11-09 07:10:51,789 INFO L277 CegarLoopForPetriNet]: 444 programPoint places, -26 predicate places. [2024-11-09 07:10:51,789 INFO L471 AbstractCegarLoop]: Abstraction has has 418 places, 330 transitions, 907 flow [2024-11-09 07:10:51,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1307.0) internal successors, (6535), 5 states have internal predecessors, (6535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:51,790 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:51,790 INFO L204 CegarLoopForPetriNet]: trace histogram [41, 41, 41, 41, 41, 41, 41, 40, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:51,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2024-11-09 07:10:51,790 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-09 07:10:51,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:51,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1461224643, now seen corresponding path program 1 times [2024-11-09 07:10:51,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:51,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686735340] [2024-11-09 07:10:51,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:51,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:51,854 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:52,021 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:52,021 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:52,021 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (47 of 48 remaining) [2024-11-09 07:10:52,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (46 of 48 remaining) [2024-11-09 07:10:52,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (45 of 48 remaining) [2024-11-09 07:10:52,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (44 of 48 remaining) [2024-11-09 07:10:52,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (43 of 48 remaining) [2024-11-09 07:10:52,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (42 of 48 remaining) [2024-11-09 07:10:52,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 48 remaining) [2024-11-09 07:10:52,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 48 remaining) [2024-11-09 07:10:52,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 48 remaining) [2024-11-09 07:10:52,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 48 remaining) [2024-11-09 07:10:52,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 48 remaining) [2024-11-09 07:10:52,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 48 remaining) [2024-11-09 07:10:52,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 48 remaining) [2024-11-09 07:10:52,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 48 remaining) [2024-11-09 07:10:52,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 48 remaining) [2024-11-09 07:10:52,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 48 remaining) [2024-11-09 07:10:52,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 48 remaining) [2024-11-09 07:10:52,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 48 remaining) [2024-11-09 07:10:52,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 48 remaining) [2024-11-09 07:10:52,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 48 remaining) [2024-11-09 07:10:52,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 48 remaining) [2024-11-09 07:10:52,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 48 remaining) [2024-11-09 07:10:52,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 48 remaining) [2024-11-09 07:10:52,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 48 remaining) [2024-11-09 07:10:52,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 48 remaining) [2024-11-09 07:10:52,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 48 remaining) [2024-11-09 07:10:52,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 48 remaining) [2024-11-09 07:10:52,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 48 remaining) [2024-11-09 07:10:52,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 48 remaining) [2024-11-09 07:10:52,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 48 remaining) [2024-11-09 07:10:52,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 48 remaining) [2024-11-09 07:10:52,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 48 remaining) [2024-11-09 07:10:52,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 48 remaining) [2024-11-09 07:10:52,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 48 remaining) [2024-11-09 07:10:52,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 48 remaining) [2024-11-09 07:10:52,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 48 remaining) [2024-11-09 07:10:52,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 48 remaining) [2024-11-09 07:10:52,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 48 remaining) [2024-11-09 07:10:52,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 48 remaining) [2024-11-09 07:10:52,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 48 remaining) [2024-11-09 07:10:52,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 48 remaining) [2024-11-09 07:10:52,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 48 remaining) [2024-11-09 07:10:52,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 48 remaining) [2024-11-09 07:10:52,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 48 remaining) [2024-11-09 07:10:52,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 48 remaining) [2024-11-09 07:10:52,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 48 remaining) [2024-11-09 07:10:52,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 48 remaining) [2024-11-09 07:10:52,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 48 remaining) [2024-11-09 07:10:52,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2024-11-09 07:10:52,025 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:52,025 WARN L244 ceAbstractionStarter]: 40 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:52,025 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 41 thread instances. [2024-11-09 07:10:52,176 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:52,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1588 places, 1589 transitions, 6786 flow [2024-11-09 07:10:52,911 INFO L124 PetriNetUnfolderBase]: 212/2719 cut-off events. [2024-11-09 07:10:52,911 INFO L125 PetriNetUnfolderBase]: For 12300/12300 co-relation queries the response was YES. [2024-11-09 07:10:52,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3788 conditions, 2719 events. 212/2719 cut-off events. For 12300/12300 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7707 event pairs, 0 based on Foata normal form. 0/2377 useless extension candidates. Maximal degree in co-relation 3705. Up to 84 conditions per place. [2024-11-09 07:10:52,954 INFO L82 GeneralOperation]: Start removeDead. Operand has 1588 places, 1589 transitions, 6786 flow [2024-11-09 07:10:52,960 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 453 places, 372 transitions, 2551 flow [2024-11-09 07:10:52,960 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:52,961 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:52,961 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2024-11-09 07:10:52,962 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:52,962 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:52,963 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:52,963 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:52,963 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:52,963 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2024-11-09 07:10:52,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:52,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1095635965, now seen corresponding path program 1 times [2024-11-09 07:10:52,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:52,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213822117] [2024-11-09 07:10:52,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:52,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:53,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:53,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:53,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213822117] [2024-11-09 07:10:53,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213822117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:53,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:53,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:53,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253896139] [2024-11-09 07:10:53,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:53,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:53,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:53,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:53,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:53,154 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1289 out of 1589 [2024-11-09 07:10:53,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 372 transitions, 2551 flow. Second operand has 3 states, 3 states have (on average 1290.3333333333333) internal successors, (3871), 3 states have internal predecessors, (3871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:53,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:53,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1289 of 1589 [2024-11-09 07:10:53,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:53,663 INFO L124 PetriNetUnfolderBase]: 85/2087 cut-off events. [2024-11-09 07:10:53,663 INFO L125 PetriNetUnfolderBase]: For 13203/13203 co-relation queries the response was YES. [2024-11-09 07:10:53,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3418 conditions, 2087 events. 85/2087 cut-off events. For 13203/13203 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5911 event pairs, 42 based on Foata normal form. 85/1999 useless extension candidates. Maximal degree in co-relation 3273. Up to 300 conditions per place. [2024-11-09 07:10:53,696 INFO L140 encePairwiseOnDemand]: 1583/1589 looper letters, 51 selfloop transitions, 2 changer transitions 1/368 dead transitions. [2024-11-09 07:10:53,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 368 transitions, 2649 flow [2024-11-09 07:10:53,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:53,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:53,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3924 transitions. [2024-11-09 07:10:53,698 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8231592196349906 [2024-11-09 07:10:53,698 INFO L175 Difference]: Start difference. First operand has 453 places, 372 transitions, 2551 flow. Second operand 3 states and 3924 transitions. [2024-11-09 07:10:53,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 368 transitions, 2649 flow [2024-11-09 07:10:53,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 368 transitions, 1088 flow, removed 780 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:53,717 INFO L231 Difference]: Finished difference. Result has 453 places, 367 transitions, 984 flow [2024-11-09 07:10:53,717 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1589, PETRI_DIFFERENCE_MINUEND_FLOW=982, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=984, PETRI_PLACES=453, PETRI_TRANSITIONS=367} [2024-11-09 07:10:53,717 INFO L277 CegarLoopForPetriNet]: 453 programPoint places, 0 predicate places. [2024-11-09 07:10:53,717 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 367 transitions, 984 flow [2024-11-09 07:10:53,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1290.3333333333333) internal successors, (3871), 3 states have internal predecessors, (3871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:53,718 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:53,718 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] [2024-11-09 07:10:53,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2024-11-09 07:10:53,718 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2024-11-09 07:10:53,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:53,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1009582598, now seen corresponding path program 1 times [2024-11-09 07:10:53,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:53,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979104568] [2024-11-09 07:10:53,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:53,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:53,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:53,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:53,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979104568] [2024-11-09 07:10:53,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979104568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:53,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:53,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:53,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140207156] [2024-11-09 07:10:53,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:53,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:53,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:53,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:53,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:53,841 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1205 out of 1589 [2024-11-09 07:10:53,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 367 transitions, 984 flow. Second operand has 3 states, 3 states have (on average 1206.0) internal successors, (3618), 3 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:53,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:53,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1205 of 1589 [2024-11-09 07:10:53,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:54,435 INFO L124 PetriNetUnfolderBase]: 43/1873 cut-off events. [2024-11-09 07:10:54,435 INFO L125 PetriNetUnfolderBase]: For 942/942 co-relation queries the response was YES. [2024-11-09 07:10:54,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2341 conditions, 1873 events. 43/1873 cut-off events. For 942/942 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4465 event pairs, 0 based on Foata normal form. 42/1830 useless extension candidates. Maximal degree in co-relation 2276. Up to 215 conditions per place. [2024-11-09 07:10:54,445 INFO L140 encePairwiseOnDemand]: 1583/1589 looper letters, 49 selfloop transitions, 1 changer transitions 24/362 dead transitions. [2024-11-09 07:10:54,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 362 transitions, 1078 flow [2024-11-09 07:10:54,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:54,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:54,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3672 transitions. [2024-11-09 07:10:54,447 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7702957835116425 [2024-11-09 07:10:54,447 INFO L175 Difference]: Start difference. First operand has 453 places, 367 transitions, 984 flow. Second operand 3 states and 3672 transitions. [2024-11-09 07:10:54,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 362 transitions, 1078 flow [2024-11-09 07:10:54,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 362 transitions, 1074 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:54,451 INFO L231 Difference]: Finished difference. Result has 447 places, 338 transitions, 922 flow [2024-11-09 07:10:54,451 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1589, PETRI_DIFFERENCE_MINUEND_FLOW=970, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=922, PETRI_PLACES=447, PETRI_TRANSITIONS=338} [2024-11-09 07:10:54,451 INFO L277 CegarLoopForPetriNet]: 453 programPoint places, -6 predicate places. [2024-11-09 07:10:54,451 INFO L471 AbstractCegarLoop]: Abstraction has has 447 places, 338 transitions, 922 flow [2024-11-09 07:10:54,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1206.0) internal successors, (3618), 3 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:54,452 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:54,452 INFO L204 CegarLoopForPetriNet]: trace histogram [42, 42, 42, 42, 42, 42, 42, 41, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:54,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2024-11-09 07:10:54,452 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2024-11-09 07:10:54,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:54,452 INFO L85 PathProgramCache]: Analyzing trace with hash 517872883, now seen corresponding path program 1 times [2024-11-09 07:10:54,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:54,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295429667] [2024-11-09 07:10:54,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:54,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:54,595 INFO L134 CoverageAnalysis]: Checked inductivity of 11808 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 11685 trivial. 0 not checked. [2024-11-09 07:10:54,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:54,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295429667] [2024-11-09 07:10:54,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295429667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:54,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:54,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:54,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448817158] [2024-11-09 07:10:54,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:54,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:54,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:54,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:54,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:54,697 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1328 out of 1589 [2024-11-09 07:10:54,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 338 transitions, 922 flow. Second operand has 5 states, 5 states have (on average 1338.2) internal successors, (6691), 5 states have internal predecessors, (6691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:54,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:54,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1328 of 1589 [2024-11-09 07:10:54,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:54,955 INFO L124 PetriNetUnfolderBase]: 0/878 cut-off events. [2024-11-09 07:10:54,955 INFO L125 PetriNetUnfolderBase]: For 941/941 co-relation queries the response was YES. [2024-11-09 07:10:54,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1180 conditions, 878 events. 0/878 cut-off events. For 941/941 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 519 event pairs, 0 based on Foata normal form. 1/878 useless extension candidates. Maximal degree in co-relation 0. Up to 131 conditions per place. [2024-11-09 07:10:54,957 INFO L140 encePairwiseOnDemand]: 1584/1589 looper letters, 49 selfloop transitions, 2 changer transitions 3/340 dead transitions. [2024-11-09 07:10:54,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 340 transitions, 1034 flow [2024-11-09 07:10:54,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:54,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:54,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6695 transitions. [2024-11-09 07:10:54,959 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8426683448709881 [2024-11-09 07:10:54,959 INFO L175 Difference]: Start difference. First operand has 447 places, 338 transitions, 922 flow. Second operand 5 states and 6695 transitions. [2024-11-09 07:10:54,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 340 transitions, 1034 flow [2024-11-09 07:10:54,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 340 transitions, 1033 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:54,963 INFO L231 Difference]: Finished difference. Result has 427 places, 337 transitions, 927 flow [2024-11-09 07:10:54,963 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1589, PETRI_DIFFERENCE_MINUEND_FLOW=921, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=927, PETRI_PLACES=427, PETRI_TRANSITIONS=337} [2024-11-09 07:10:54,963 INFO L277 CegarLoopForPetriNet]: 453 programPoint places, -26 predicate places. [2024-11-09 07:10:54,963 INFO L471 AbstractCegarLoop]: Abstraction has has 427 places, 337 transitions, 927 flow [2024-11-09 07:10:54,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1338.2) internal successors, (6691), 5 states have internal predecessors, (6691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:54,964 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:54,964 INFO L204 CegarLoopForPetriNet]: trace histogram [42, 42, 42, 42, 42, 42, 42, 41, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:54,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2024-11-09 07:10:54,964 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2024-11-09 07:10:54,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:54,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1833571760, now seen corresponding path program 1 times [2024-11-09 07:10:54,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:54,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084725353] [2024-11-09 07:10:54,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:54,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:55,047 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:55,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:55,309 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:55,309 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:55,310 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2024-11-09 07:10:55,310 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2024-11-09 07:10:55,310 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2024-11-09 07:10:55,310 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2024-11-09 07:10:55,310 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2024-11-09 07:10:55,310 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2024-11-09 07:10:55,310 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (42 of 49 remaining) [2024-11-09 07:10:55,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2024-11-09 07:10:55,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2024-11-09 07:10:55,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2024-11-09 07:10:55,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2024-11-09 07:10:55,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2024-11-09 07:10:55,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2024-11-09 07:10:55,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2024-11-09 07:10:55,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2024-11-09 07:10:55,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2024-11-09 07:10:55,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2024-11-09 07:10:55,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2024-11-09 07:10:55,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2024-11-09 07:10:55,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2024-11-09 07:10:55,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2024-11-09 07:10:55,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2024-11-09 07:10:55,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2024-11-09 07:10:55,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2024-11-09 07:10:55,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2024-11-09 07:10:55,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2024-11-09 07:10:55,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2024-11-09 07:10:55,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2024-11-09 07:10:55,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2024-11-09 07:10:55,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2024-11-09 07:10:55,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2024-11-09 07:10:55,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2024-11-09 07:10:55,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2024-11-09 07:10:55,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2024-11-09 07:10:55,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2024-11-09 07:10:55,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2024-11-09 07:10:55,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2024-11-09 07:10:55,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2024-11-09 07:10:55,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2024-11-09 07:10:55,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2024-11-09 07:10:55,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2024-11-09 07:10:55,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2024-11-09 07:10:55,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2024-11-09 07:10:55,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2024-11-09 07:10:55,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2024-11-09 07:10:55,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2024-11-09 07:10:55,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2024-11-09 07:10:55,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2024-11-09 07:10:55,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2024-11-09 07:10:55,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2024-11-09 07:10:55,316 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:55,316 WARN L244 ceAbstractionStarter]: 41 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:55,316 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 42 thread instances. [2024-11-09 07:10:55,477 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:55,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1625 places, 1626 transitions, 7032 flow [2024-11-09 07:10:56,110 INFO L124 PetriNetUnfolderBase]: 217/2783 cut-off events. [2024-11-09 07:10:56,111 INFO L125 PetriNetUnfolderBase]: For 13202/13202 co-relation queries the response was YES. [2024-11-09 07:10:56,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3899 conditions, 2783 events. 217/2783 cut-off events. For 13202/13202 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7771 event pairs, 0 based on Foata normal form. 0/2433 useless extension candidates. Maximal degree in co-relation 3814. Up to 86 conditions per place. [2024-11-09 07:10:56,159 INFO L82 GeneralOperation]: Start removeDead. Operand has 1625 places, 1626 transitions, 7032 flow [2024-11-09 07:10:56,166 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 462 places, 379 transitions, 2651 flow [2024-11-09 07:10:56,166 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:56,166 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:56,166 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-09 07:10:56,167 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:56,167 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:56,168 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:56,168 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:56,168 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:56,168 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-09 07:10:56,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:56,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1619687933, now seen corresponding path program 1 times [2024-11-09 07:10:56,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:56,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600802203] [2024-11-09 07:10:56,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:56,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:56,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:56,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:56,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:56,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600802203] [2024-11-09 07:10:56,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600802203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:56,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:56,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:56,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228676798] [2024-11-09 07:10:56,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:56,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:56,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:56,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:56,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:56,347 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1319 out of 1626 [2024-11-09 07:10:56,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 379 transitions, 2651 flow. Second operand has 3 states, 3 states have (on average 1320.3333333333333) internal successors, (3961), 3 states have internal predecessors, (3961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:56,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:56,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1319 of 1626 [2024-11-09 07:10:56,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:57,192 INFO L124 PetriNetUnfolderBase]: 87/2136 cut-off events. [2024-11-09 07:10:57,192 INFO L125 PetriNetUnfolderBase]: For 14148/14148 co-relation queries the response was YES. [2024-11-09 07:10:57,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3520 conditions, 2136 events. 87/2136 cut-off events. For 14148/14148 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6043 event pairs, 43 based on Foata normal form. 87/2046 useless extension candidates. Maximal degree in co-relation 3373. Up to 307 conditions per place. [2024-11-09 07:10:57,229 INFO L140 encePairwiseOnDemand]: 1620/1626 looper letters, 52 selfloop transitions, 2 changer transitions 1/375 dead transitions. [2024-11-09 07:10:57,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 375 transitions, 2751 flow [2024-11-09 07:10:57,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:57,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:57,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4015 transitions. [2024-11-09 07:10:57,232 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8230832308323083 [2024-11-09 07:10:57,232 INFO L175 Difference]: Start difference. First operand has 462 places, 379 transitions, 2651 flow. Second operand 3 states and 4015 transitions. [2024-11-09 07:10:57,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 375 transitions, 2751 flow [2024-11-09 07:10:57,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 375 transitions, 1110 flow, removed 820 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:57,259 INFO L231 Difference]: Finished difference. Result has 462 places, 374 transitions, 1004 flow [2024-11-09 07:10:57,259 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1626, PETRI_DIFFERENCE_MINUEND_FLOW=1002, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1004, PETRI_PLACES=462, PETRI_TRANSITIONS=374} [2024-11-09 07:10:57,259 INFO L277 CegarLoopForPetriNet]: 462 programPoint places, 0 predicate places. [2024-11-09 07:10:57,260 INFO L471 AbstractCegarLoop]: Abstraction has has 462 places, 374 transitions, 1004 flow [2024-11-09 07:10:57,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1320.3333333333333) internal successors, (3961), 3 states have internal predecessors, (3961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:57,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:57,261 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] [2024-11-09 07:10:57,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2024-11-09 07:10:57,261 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-09 07:10:57,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:57,261 INFO L85 PathProgramCache]: Analyzing trace with hash -2138086778, now seen corresponding path program 1 times [2024-11-09 07:10:57,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:57,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478512258] [2024-11-09 07:10:57,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:57,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:57,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:57,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:57,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478512258] [2024-11-09 07:10:57,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478512258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:57,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:57,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:57,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484392638] [2024-11-09 07:10:57,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:57,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:57,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:57,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:57,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:57,421 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1233 out of 1626 [2024-11-09 07:10:57,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 374 transitions, 1004 flow. Second operand has 3 states, 3 states have (on average 1234.0) internal successors, (3702), 3 states have internal predecessors, (3702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:57,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:57,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1233 of 1626 [2024-11-09 07:10:57,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:57,883 INFO L124 PetriNetUnfolderBase]: 44/1917 cut-off events. [2024-11-09 07:10:57,883 INFO L125 PetriNetUnfolderBase]: For 986/986 co-relation queries the response was YES. [2024-11-09 07:10:57,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2396 conditions, 1917 events. 44/1917 cut-off events. For 986/986 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4574 event pairs, 0 based on Foata normal form. 43/1873 useless extension candidates. Maximal degree in co-relation 2330. Up to 220 conditions per place. [2024-11-09 07:10:57,912 INFO L140 encePairwiseOnDemand]: 1620/1626 looper letters, 50 selfloop transitions, 1 changer transitions 24/369 dead transitions. [2024-11-09 07:10:57,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 369 transitions, 1100 flow [2024-11-09 07:10:57,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:57,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:57,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3757 transitions. [2024-11-09 07:10:57,914 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7701927019270193 [2024-11-09 07:10:57,914 INFO L175 Difference]: Start difference. First operand has 462 places, 374 transitions, 1004 flow. Second operand 3 states and 3757 transitions. [2024-11-09 07:10:57,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 369 transitions, 1100 flow [2024-11-09 07:10:57,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 369 transitions, 1096 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:57,918 INFO L231 Difference]: Finished difference. Result has 456 places, 345 transitions, 942 flow [2024-11-09 07:10:57,918 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1626, PETRI_DIFFERENCE_MINUEND_FLOW=990, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=942, PETRI_PLACES=456, PETRI_TRANSITIONS=345} [2024-11-09 07:10:57,918 INFO L277 CegarLoopForPetriNet]: 462 programPoint places, -6 predicate places. [2024-11-09 07:10:57,919 INFO L471 AbstractCegarLoop]: Abstraction has has 456 places, 345 transitions, 942 flow [2024-11-09 07:10:57,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1234.0) internal successors, (3702), 3 states have internal predecessors, (3702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:57,919 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:57,919 INFO L204 CegarLoopForPetriNet]: trace histogram [43, 43, 43, 43, 43, 43, 43, 42, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:57,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2024-11-09 07:10:57,919 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-09 07:10:57,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:57,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1965073241, now seen corresponding path program 1 times [2024-11-09 07:10:57,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:57,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073054324] [2024-11-09 07:10:57,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:57,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:58,070 INFO L134 CoverageAnalysis]: Checked inductivity of 12390 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 12264 trivial. 0 not checked. [2024-11-09 07:10:58,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:58,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073054324] [2024-11-09 07:10:58,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073054324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:58,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:58,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:58,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314287909] [2024-11-09 07:10:58,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:58,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:58,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:58,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:58,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:58,200 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1359 out of 1626 [2024-11-09 07:10:58,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 345 transitions, 942 flow. Second operand has 5 states, 5 states have (on average 1369.4) internal successors, (6847), 5 states have internal predecessors, (6847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:58,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:58,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1359 of 1626 [2024-11-09 07:10:58,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:58,433 INFO L124 PetriNetUnfolderBase]: 0/898 cut-off events. [2024-11-09 07:10:58,433 INFO L125 PetriNetUnfolderBase]: For 985/985 co-relation queries the response was YES. [2024-11-09 07:10:58,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1207 conditions, 898 events. 0/898 cut-off events. For 985/985 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 532 event pairs, 0 based on Foata normal form. 1/898 useless extension candidates. Maximal degree in co-relation 0. Up to 134 conditions per place. [2024-11-09 07:10:58,434 INFO L140 encePairwiseOnDemand]: 1621/1626 looper letters, 50 selfloop transitions, 2 changer transitions 3/347 dead transitions. [2024-11-09 07:10:58,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 347 transitions, 1056 flow [2024-11-09 07:10:58,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:58,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 07:10:58,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6851 transitions. [2024-11-09 07:10:58,437 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8426814268142682 [2024-11-09 07:10:58,437 INFO L175 Difference]: Start difference. First operand has 456 places, 345 transitions, 942 flow. Second operand 5 states and 6851 transitions. [2024-11-09 07:10:58,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 347 transitions, 1056 flow [2024-11-09 07:10:58,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 347 transitions, 1055 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:58,441 INFO L231 Difference]: Finished difference. Result has 436 places, 344 transitions, 947 flow [2024-11-09 07:10:58,441 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1626, PETRI_DIFFERENCE_MINUEND_FLOW=941, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=947, PETRI_PLACES=436, PETRI_TRANSITIONS=344} [2024-11-09 07:10:58,441 INFO L277 CegarLoopForPetriNet]: 462 programPoint places, -26 predicate places. [2024-11-09 07:10:58,441 INFO L471 AbstractCegarLoop]: Abstraction has has 436 places, 344 transitions, 947 flow [2024-11-09 07:10:58,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1369.4) internal successors, (6847), 5 states have internal predecessors, (6847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:58,442 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:58,442 INFO L204 CegarLoopForPetriNet]: trace histogram [43, 43, 43, 43, 43, 43, 43, 42, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:58,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2024-11-09 07:10:58,442 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-09 07:10:58,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:58,442 INFO L85 PathProgramCache]: Analyzing trace with hash -2032767894, now seen corresponding path program 1 times [2024-11-09 07:10:58,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:58,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651679805] [2024-11-09 07:10:58,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:58,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:58,511 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:58,783 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:58,784 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:58,784 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (49 of 50 remaining) [2024-11-09 07:10:58,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (48 of 50 remaining) [2024-11-09 07:10:58,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (47 of 50 remaining) [2024-11-09 07:10:58,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (46 of 50 remaining) [2024-11-09 07:10:58,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (45 of 50 remaining) [2024-11-09 07:10:58,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (44 of 50 remaining) [2024-11-09 07:10:58,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 50 remaining) [2024-11-09 07:10:58,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 50 remaining) [2024-11-09 07:10:58,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 50 remaining) [2024-11-09 07:10:58,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 50 remaining) [2024-11-09 07:10:58,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 50 remaining) [2024-11-09 07:10:58,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 50 remaining) [2024-11-09 07:10:58,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 50 remaining) [2024-11-09 07:10:58,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 50 remaining) [2024-11-09 07:10:58,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 50 remaining) [2024-11-09 07:10:58,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 50 remaining) [2024-11-09 07:10:58,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 50 remaining) [2024-11-09 07:10:58,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 50 remaining) [2024-11-09 07:10:58,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 50 remaining) [2024-11-09 07:10:58,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 50 remaining) [2024-11-09 07:10:58,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 50 remaining) [2024-11-09 07:10:58,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 50 remaining) [2024-11-09 07:10:58,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 50 remaining) [2024-11-09 07:10:58,787 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 50 remaining) [2024-11-09 07:10:58,787 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 50 remaining) [2024-11-09 07:10:58,787 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 50 remaining) [2024-11-09 07:10:58,787 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 50 remaining) [2024-11-09 07:10:58,787 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 50 remaining) [2024-11-09 07:10:58,787 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 50 remaining) [2024-11-09 07:10:58,787 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 50 remaining) [2024-11-09 07:10:58,787 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 50 remaining) [2024-11-09 07:10:58,788 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 50 remaining) [2024-11-09 07:10:58,788 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 50 remaining) [2024-11-09 07:10:58,788 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 50 remaining) [2024-11-09 07:10:58,788 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 50 remaining) [2024-11-09 07:10:58,788 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 50 remaining) [2024-11-09 07:10:58,788 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 50 remaining) [2024-11-09 07:10:58,788 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 50 remaining) [2024-11-09 07:10:58,788 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 50 remaining) [2024-11-09 07:10:58,788 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 50 remaining) [2024-11-09 07:10:58,789 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 50 remaining) [2024-11-09 07:10:58,789 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 50 remaining) [2024-11-09 07:10:58,789 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 50 remaining) [2024-11-09 07:10:58,789 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 50 remaining) [2024-11-09 07:10:58,789 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 50 remaining) [2024-11-09 07:10:58,789 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 50 remaining) [2024-11-09 07:10:58,789 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 50 remaining) [2024-11-09 07:10:58,789 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 50 remaining) [2024-11-09 07:10:58,789 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 50 remaining) [2024-11-09 07:10:58,790 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 50 remaining) [2024-11-09 07:10:58,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2024-11-09 07:10:58,790 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:58,790 WARN L244 ceAbstractionStarter]: 42 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:58,791 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 43 thread instances. [2024-11-09 07:10:58,959 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:58,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1662 places, 1663 transitions, 7282 flow [2024-11-09 07:10:59,628 INFO L124 PetriNetUnfolderBase]: 222/2847 cut-off events. [2024-11-09 07:10:59,628 INFO L125 PetriNetUnfolderBase]: For 14147/14147 co-relation queries the response was YES. [2024-11-09 07:10:59,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4011 conditions, 2847 events. 222/2847 cut-off events. For 14147/14147 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8210 event pairs, 0 based on Foata normal form. 0/2489 useless extension candidates. Maximal degree in co-relation 3924. Up to 88 conditions per place. [2024-11-09 07:10:59,681 INFO L82 GeneralOperation]: Start removeDead. Operand has 1662 places, 1663 transitions, 7282 flow [2024-11-09 07:10:59,687 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 471 places, 386 transitions, 2753 flow [2024-11-09 07:10:59,688 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:59,688 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;@1d9b7a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:59,688 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-11-09 07:10:59,689 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:59,689 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-09 07:10:59,689 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:59,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:59,689 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:59,689 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-09 07:10:59,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:59,689 INFO L85 PathProgramCache]: Analyzing trace with hash 2102322435, now seen corresponding path program 1 times [2024-11-09 07:10:59,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:59,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405614521] [2024-11-09 07:10:59,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:59,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:59,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:59,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:59,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:59,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405614521] [2024-11-09 07:10:59,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405614521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:59,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:59,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:59,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95021476] [2024-11-09 07:10:59,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:59,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:59,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:59,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:59,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:59,874 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1349 out of 1663 [2024-11-09 07:10:59,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 386 transitions, 2753 flow. Second operand has 3 states, 3 states have (on average 1350.3333333333333) internal successors, (4051), 3 states have internal predecessors, (4051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:59,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:59,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1349 of 1663 [2024-11-09 07:10:59,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:11:00,529 INFO L124 PetriNetUnfolderBase]: 89/2185 cut-off events. [2024-11-09 07:11:00,529 INFO L125 PetriNetUnfolderBase]: For 15137/15137 co-relation queries the response was YES. [2024-11-09 07:11:00,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3623 conditions, 2185 events. 89/2185 cut-off events. For 15137/15137 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6159 event pairs, 44 based on Foata normal form. 89/2093 useless extension candidates. Maximal degree in co-relation 3474. Up to 314 conditions per place. [2024-11-09 07:11:00,567 INFO L140 encePairwiseOnDemand]: 1657/1663 looper letters, 53 selfloop transitions, 2 changer transitions 1/382 dead transitions. [2024-11-09 07:11:00,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 382 transitions, 2855 flow [2024-11-09 07:11:00,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:11:00,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:11:00,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4106 transitions. [2024-11-09 07:11:00,569 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8230106233714172 [2024-11-09 07:11:00,569 INFO L175 Difference]: Start difference. First operand has 471 places, 386 transitions, 2753 flow. Second operand 3 states and 4106 transitions. [2024-11-09 07:11:00,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 382 transitions, 2855 flow [2024-11-09 07:11:00,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 382 transitions, 1132 flow, removed 861 selfloop flow, removed 1 redundant places. [2024-11-09 07:11:00,592 INFO L231 Difference]: Finished difference. Result has 471 places, 381 transitions, 1024 flow [2024-11-09 07:11:00,592 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1663, PETRI_DIFFERENCE_MINUEND_FLOW=1022, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1024, PETRI_PLACES=471, PETRI_TRANSITIONS=381} [2024-11-09 07:11:00,592 INFO L277 CegarLoopForPetriNet]: 471 programPoint places, 0 predicate places. [2024-11-09 07:11:00,592 INFO L471 AbstractCegarLoop]: Abstraction has has 471 places, 381 transitions, 1024 flow [2024-11-09 07:11:00,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1350.3333333333333) internal successors, (4051), 3 states have internal predecessors, (4051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:11:00,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:11:00,593 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] [2024-11-09 07:11:00,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2024-11-09 07:11:00,593 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-09 07:11:00,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:11:00,593 INFO L85 PathProgramCache]: Analyzing trace with hash 128870726, now seen corresponding path program 1 times [2024-11-09 07:11:00,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:11:00,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461565158] [2024-11-09 07:11:00,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:11:00,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms