./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind3-nondet.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-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-wip.dd.update-z3-fca748b-m [2024-11-20 14:03:05,412 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 14:03:05,473 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 14:03:05,480 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 14:03:05,483 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 14:03:05,530 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 14:03:05,531 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 14:03:05,531 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 14:03:05,532 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 14:03:05,533 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 14:03:05,534 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 14:03:05,534 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 14:03:05,534 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 14:03:05,536 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 14:03:05,536 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 14:03:05,537 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 14:03:05,537 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 14:03:05,537 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 14:03:05,538 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 14:03:05,540 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 14:03:05,541 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 14:03:05,541 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 14:03:05,541 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 14:03:05,542 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 14:03:05,542 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 14:03:05,542 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 14:03:05,542 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 14:03:05,543 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 14:03:05,543 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 14:03:05,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 14:03:05,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 14:03:05,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 14:03:05,544 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 14:03:05,544 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 14:03:05,544 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 14:03:05,545 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 14:03:05,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 14:03:05,546 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 14:03:05,546 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 14:03:05,546 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 14:03:05,547 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 14:03:05,551 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d10f4791070edb44c97ab9948c6a47d7a3edd4f9cb75d429f64896be7b2f789 [2024-11-20 14:03:05,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 14:03:05,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 14:03:05,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 14:03:05,808 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 14:03:05,809 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 14:03:05,810 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind3-nondet.i [2024-11-20 14:03:07,225 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 14:03:07,448 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 14:03:07,448 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind3-nondet.i [2024-11-20 14:03:07,461 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c24d35a7e/02053024cc09469d81d8168a57cd7bf6/FLAGac530a275 [2024-11-20 14:03:07,476 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c24d35a7e/02053024cc09469d81d8168a57cd7bf6 [2024-11-20 14:03:07,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 14:03:07,480 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 14:03:07,481 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 14:03:07,481 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 14:03:07,488 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 14:03:07,488 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:03:07" (1/1) ... [2024-11-20 14:03:07,489 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f00e9b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:03:07, skipping insertion in model container [2024-11-20 14:03:07,489 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:03:07" (1/1) ... [2024-11-20 14:03:07,533 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 14:03:07,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 14:03:07,946 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 14:03:07,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 14:03:08,025 INFO L204 MainTranslator]: Completed translation [2024-11-20 14:03:08,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:03:08 WrapperNode [2024-11-20 14:03:08,026 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 14:03:08,027 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 14:03:08,027 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 14:03:08,028 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 14:03:08,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:03:08" (1/1) ... [2024-11-20 14:03:08,053 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:03:08" (1/1) ... [2024-11-20 14:03:08,076 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 87 [2024-11-20 14:03:08,077 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 14:03:08,078 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 14:03:08,078 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 14:03:08,082 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 14:03:08,095 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:03:08" (1/1) ... [2024-11-20 14:03:08,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:03:08" (1/1) ... [2024-11-20 14:03:08,101 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:03:08" (1/1) ... [2024-11-20 14:03:08,102 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:03:08" (1/1) ... [2024-11-20 14:03:08,110 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:03:08" (1/1) ... [2024-11-20 14:03:08,121 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:03:08" (1/1) ... [2024-11-20 14:03:08,124 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:03:08" (1/1) ... [2024-11-20 14:03:08,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:03:08" (1/1) ... [2024-11-20 14:03:08,130 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 14:03:08,134 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 14:03:08,134 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 14:03:08,134 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 14:03:08,135 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:03:08" (1/1) ... [2024-11-20 14:03:08,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 14:03:08,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:03:08,171 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 14:03:08,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 14:03:08,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 14:03:08,213 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-20 14:03:08,214 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-20 14:03:08,214 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-20 14:03:08,214 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-20 14:03:08,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 14:03:08,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 14:03:08,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 14:03:08,216 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 14:03:08,322 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 14:03:08,324 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 14:03:08,456 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 14:03:08,456 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 14:03:08,470 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 14:03:08,470 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 14:03:08,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:03:08 BoogieIcfgContainer [2024-11-20 14:03:08,470 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 14:03:08,473 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 14:03:08,473 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 14:03:08,476 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 14:03:08,476 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:03:07" (1/3) ... [2024-11-20 14:03:08,477 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219ec67e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:03:08, skipping insertion in model container [2024-11-20 14:03:08,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:03:08" (2/3) ... [2024-11-20 14:03:08,478 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219ec67e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:03:08, skipping insertion in model container [2024-11-20 14:03:08,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:03:08" (3/3) ... [2024-11-20 14:03:08,480 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind3-nondet.i [2024-11-20 14:03:08,495 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 14:03:08,495 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-20 14:03:08,495 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 14:03:08,562 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:08,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 109 transitions, 226 flow [2024-11-20 14:03:08,677 INFO L124 PetriNetUnfolderBase]: 12/159 cut-off events. [2024-11-20 14:03:08,677 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:08,683 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. [2024-11-20 14:03:08,683 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 109 transitions, 226 flow [2024-11-20 14:03:08,690 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 92 transitions, 191 flow [2024-11-20 14:03:08,701 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:08,709 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:08,709 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-20 14:03:08,732 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:08,733 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:08,734 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:08,734 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:08,734 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:08,737 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)] === [2024-11-20 14:03:08,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:08,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1239212035, now seen corresponding path program 1 times [2024-11-20 14:03:08,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:08,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189130616] [2024-11-20 14:03:08,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:08,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:08,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:09,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:09,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:09,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189130616] [2024-11-20 14:03:09,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189130616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:09,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:09,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:09,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608584327] [2024-11-20 14:03:09,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:09,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:09,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:09,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:09,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:09,121 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 109 [2024-11-20 14:03:09,124 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) [2024-11-20 14:03:09,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:09,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 109 [2024-11-20 14:03:09,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:09,175 INFO L124 PetriNetUnfolderBase]: 5/127 cut-off events. [2024-11-20 14:03:09,176 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-20 14:03:09,177 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. [2024-11-20 14:03:09,179 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 11 selfloop transitions, 2 changer transitions 1/88 dead transitions. [2024-11-20 14:03:09,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 88 transitions, 209 flow [2024-11-20 14:03:09,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:09,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:09,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-11-20 14:03:09,194 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8685015290519877 [2024-11-20 14:03:09,196 INFO L175 Difference]: Start difference. First operand has 93 places, 92 transitions, 191 flow. Second operand 3 states and 284 transitions. [2024-11-20 14:03:09,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 88 transitions, 209 flow [2024-11-20 14:03:09,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 88 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:09,203 INFO L231 Difference]: Finished difference. Result has 93 places, 87 transitions, 184 flow [2024-11-20 14:03:09,207 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} [2024-11-20 14:03:09,212 INFO L277 CegarLoopForPetriNet]: 93 programPoint places, 0 predicate places. [2024-11-20 14:03:09,214 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 87 transitions, 184 flow [2024-11-20 14:03:09,214 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) [2024-11-20 14:03:09,215 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:09,215 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] [2024-11-20 14:03:09,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 14:03:09,216 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)] === [2024-11-20 14:03:09,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:09,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1360163590, now seen corresponding path program 1 times [2024-11-20 14:03:09,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:09,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798141255] [2024-11-20 14:03:09,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:09,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:09,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:09,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:09,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:09,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798141255] [2024-11-20 14:03:09,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798141255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:09,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:09,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:09,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594336311] [2024-11-20 14:03:09,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:09,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:09,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:09,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:09,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:09,342 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 109 [2024-11-20 14:03:09,343 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) [2024-11-20 14:03:09,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:09,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 109 [2024-11-20 14:03:09,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:09,382 INFO L124 PetriNetUnfolderBase]: 3/113 cut-off events. [2024-11-20 14:03:09,383 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 14:03:09,385 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. [2024-11-20 14:03:09,386 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 9 selfloop transitions, 1 changer transitions 24/82 dead transitions. [2024-11-20 14:03:09,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 82 transitions, 198 flow [2024-11-20 14:03:09,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:09,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:09,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 272 transitions. [2024-11-20 14:03:09,391 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8318042813455657 [2024-11-20 14:03:09,391 INFO L175 Difference]: Start difference. First operand has 93 places, 87 transitions, 184 flow. Second operand 3 states and 272 transitions. [2024-11-20 14:03:09,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 82 transitions, 198 flow [2024-11-20 14:03:09,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 82 transitions, 194 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:09,393 INFO L231 Difference]: Finished difference. Result has 87 places, 58 transitions, 122 flow [2024-11-20 14:03:09,394 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} [2024-11-20 14:03:09,396 INFO L277 CegarLoopForPetriNet]: 93 programPoint places, -6 predicate places. [2024-11-20 14:03:09,396 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 58 transitions, 122 flow [2024-11-20 14:03:09,396 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) [2024-11-20 14:03:09,396 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:09,397 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] [2024-11-20 14:03:09,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 14:03:09,397 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)] === [2024-11-20 14:03:09,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:09,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1669687107, now seen corresponding path program 1 times [2024-11-20 14:03:09,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:09,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441242263] [2024-11-20 14:03:09,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:09,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:09,642 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 14:03:09,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:09,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441242263] [2024-11-20 14:03:09,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441242263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:09,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:09,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:09,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119373046] [2024-11-20 14:03:09,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:09,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:09,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:09,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:09,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:09,694 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 109 [2024-11-20 14:03:09,695 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) [2024-11-20 14:03:09,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:09,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 109 [2024-11-20 14:03:09,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:09,721 INFO L124 PetriNetUnfolderBase]: 0/78 cut-off events. [2024-11-20 14:03:09,721 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 14:03:09,721 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. [2024-11-20 14:03:09,724 INFO L140 encePairwiseOnDemand]: 104/109 looper letters, 9 selfloop transitions, 2 changer transitions 3/60 dead transitions. [2024-11-20 14:03:09,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 60 transitions, 154 flow [2024-11-20 14:03:09,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:09,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:09,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 455 transitions. [2024-11-20 14:03:09,728 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8348623853211009 [2024-11-20 14:03:09,728 INFO L175 Difference]: Start difference. First operand has 87 places, 58 transitions, 122 flow. Second operand 5 states and 455 transitions. [2024-11-20 14:03:09,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 60 transitions, 154 flow [2024-11-20 14:03:09,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 60 transitions, 153 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:09,730 INFO L231 Difference]: Finished difference. Result has 67 places, 57 transitions, 127 flow [2024-11-20 14:03:09,731 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} [2024-11-20 14:03:09,732 INFO L277 CegarLoopForPetriNet]: 93 programPoint places, -26 predicate places. [2024-11-20 14:03:09,733 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 57 transitions, 127 flow [2024-11-20 14:03:09,734 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) [2024-11-20 14:03:09,734 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:09,734 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] [2024-11-20 14:03:09,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 14:03:09,735 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)] === [2024-11-20 14:03:09,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:09,736 INFO L85 PathProgramCache]: Analyzing trace with hash 16131628, now seen corresponding path program 1 times [2024-11-20 14:03:09,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:09,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962479961] [2024-11-20 14:03:09,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:09,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:09,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:09,765 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:09,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:09,808 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:09,808 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:09,809 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-20 14:03:09,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-20 14:03:09,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-20 14:03:09,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-20 14:03:09,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-20 14:03:09,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-20 14:03:09,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 9 remaining) [2024-11-20 14:03:09,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-20 14:03:09,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-20 14:03:09,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 14:03:09,813 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:09,817 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:09,817 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-20 14:03:09,857 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:09,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 146 transitions, 312 flow [2024-11-20 14:03:09,891 INFO L124 PetriNetUnfolderBase]: 17/223 cut-off events. [2024-11-20 14:03:09,891 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 14:03:09,892 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. [2024-11-20 14:03:09,892 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 146 transitions, 312 flow [2024-11-20 14:03:09,893 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 99 transitions, 211 flow [2024-11-20 14:03:09,896 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:09,897 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:09,897 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-20 14:03:09,900 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:09,900 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:09,900 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:09,901 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:09,901 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:09,901 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)] === [2024-11-20 14:03:09,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:09,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1623608829, now seen corresponding path program 1 times [2024-11-20 14:03:09,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:09,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698671440] [2024-11-20 14:03:09,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:09,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:09,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:09,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:09,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698671440] [2024-11-20 14:03:09,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698671440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:09,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:09,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:09,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584722308] [2024-11-20 14:03:09,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:09,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:09,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:09,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:09,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:09,972 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 146 [2024-11-20 14:03:09,973 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) [2024-11-20 14:03:09,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:09,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 146 [2024-11-20 14:03:09,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:09,998 INFO L124 PetriNetUnfolderBase]: 7/176 cut-off events. [2024-11-20 14:03:09,998 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-20 14:03:09,999 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. [2024-11-20 14:03:10,000 INFO L140 encePairwiseOnDemand]: 140/146 looper letters, 12 selfloop transitions, 2 changer transitions 1/95 dead transitions. [2024-11-20 14:03:10,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 95 transitions, 231 flow [2024-11-20 14:03:10,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:10,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:10,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 375 transitions. [2024-11-20 14:03:10,005 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8561643835616438 [2024-11-20 14:03:10,005 INFO L175 Difference]: Start difference. First operand has 102 places, 99 transitions, 211 flow. Second operand 3 states and 375 transitions. [2024-11-20 14:03:10,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 95 transitions, 231 flow [2024-11-20 14:03:10,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 95 transitions, 230 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:10,009 INFO L231 Difference]: Finished difference. Result has 102 places, 94 transitions, 204 flow [2024-11-20 14:03:10,009 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} [2024-11-20 14:03:10,011 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 0 predicate places. [2024-11-20 14:03:10,011 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 94 transitions, 204 flow [2024-11-20 14:03:10,012 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) [2024-11-20 14:03:10,012 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:10,012 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:10,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 14:03:10,013 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)] === [2024-11-20 14:03:10,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:10,014 INFO L85 PathProgramCache]: Analyzing trace with hash 670751110, now seen corresponding path program 1 times [2024-11-20 14:03:10,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:10,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107074966] [2024-11-20 14:03:10,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:10,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:10,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:10,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:10,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107074966] [2024-11-20 14:03:10,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107074966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:10,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:10,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:10,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379113857] [2024-11-20 14:03:10,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:10,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:10,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:10,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:10,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:10,081 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 146 [2024-11-20 14:03:10,082 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) [2024-11-20 14:03:10,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:10,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 146 [2024-11-20 14:03:10,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:10,117 INFO L124 PetriNetUnfolderBase]: 4/157 cut-off events. [2024-11-20 14:03:10,120 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-20 14:03:10,120 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. [2024-11-20 14:03:10,121 INFO L140 encePairwiseOnDemand]: 140/146 looper letters, 10 selfloop transitions, 1 changer transitions 24/89 dead transitions. [2024-11-20 14:03:10,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 89 transitions, 220 flow [2024-11-20 14:03:10,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:10,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:10,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 357 transitions. [2024-11-20 14:03:10,123 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.815068493150685 [2024-11-20 14:03:10,123 INFO L175 Difference]: Start difference. First operand has 102 places, 94 transitions, 204 flow. Second operand 3 states and 357 transitions. [2024-11-20 14:03:10,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 89 transitions, 220 flow [2024-11-20 14:03:10,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 89 transitions, 216 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:10,125 INFO L231 Difference]: Finished difference. Result has 96 places, 65 transitions, 142 flow [2024-11-20 14:03:10,126 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} [2024-11-20 14:03:10,127 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, -6 predicate places. [2024-11-20 14:03:10,127 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 65 transitions, 142 flow [2024-11-20 14:03:10,127 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) [2024-11-20 14:03:10,127 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:10,128 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] [2024-11-20 14:03:10,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 14:03:10,128 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)] === [2024-11-20 14:03:10,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:10,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1582488215, now seen corresponding path program 1 times [2024-11-20 14:03:10,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:10,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720511971] [2024-11-20 14:03:10,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:10,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:10,327 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 14:03:10,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:10,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720511971] [2024-11-20 14:03:10,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720511971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:10,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:10,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:10,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150668832] [2024-11-20 14:03:10,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:10,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:10,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:10,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:10,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:10,378 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 146 [2024-11-20 14:03:10,379 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) [2024-11-20 14:03:10,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:10,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 146 [2024-11-20 14:03:10,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:10,399 INFO L124 PetriNetUnfolderBase]: 0/98 cut-off events. [2024-11-20 14:03:10,399 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-20 14:03:10,399 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. [2024-11-20 14:03:10,399 INFO L140 encePairwiseOnDemand]: 141/146 looper letters, 10 selfloop transitions, 2 changer transitions 3/67 dead transitions. [2024-11-20 14:03:10,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 67 transitions, 176 flow [2024-11-20 14:03:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:10,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:10,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 611 transitions. [2024-11-20 14:03:10,401 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.836986301369863 [2024-11-20 14:03:10,401 INFO L175 Difference]: Start difference. First operand has 96 places, 65 transitions, 142 flow. Second operand 5 states and 611 transitions. [2024-11-20 14:03:10,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 67 transitions, 176 flow [2024-11-20 14:03:10,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 67 transitions, 175 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:10,404 INFO L231 Difference]: Finished difference. Result has 76 places, 64 transitions, 147 flow [2024-11-20 14:03:10,405 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} [2024-11-20 14:03:10,405 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, -26 predicate places. [2024-11-20 14:03:10,405 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 64 transitions, 147 flow [2024-11-20 14:03:10,406 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) [2024-11-20 14:03:10,406 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:10,406 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] [2024-11-20 14:03:10,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 14:03:10,407 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)] === [2024-11-20 14:03:10,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:10,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1496233298, now seen corresponding path program 1 times [2024-11-20 14:03:10,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:10,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923124652] [2024-11-20 14:03:10,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:10,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:10,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:10,425 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:10,445 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:10,446 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:10,446 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-20 14:03:10,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2024-11-20 14:03:10,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2024-11-20 14:03:10,447 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2024-11-20 14:03:10,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2024-11-20 14:03:10,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2024-11-20 14:03:10,448 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 10 remaining) [2024-11-20 14:03:10,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2024-11-20 14:03:10,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2024-11-20 14:03:10,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2024-11-20 14:03:10,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 14:03:10,451 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:10,452 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:10,452 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-20 14:03:10,487 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:10,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 183 transitions, 402 flow [2024-11-20 14:03:10,518 INFO L124 PetriNetUnfolderBase]: 22/287 cut-off events. [2024-11-20 14:03:10,518 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-20 14:03:10,519 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. [2024-11-20 14:03:10,519 INFO L82 GeneralOperation]: Start removeDead. Operand has 182 places, 183 transitions, 402 flow [2024-11-20 14:03:10,520 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 111 places, 106 transitions, 233 flow [2024-11-20 14:03:10,521 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:10,522 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:10,522 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-20 14:03:10,523 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:10,523 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:10,523 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:10,523 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:10,523 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:10,523 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)] === [2024-11-20 14:03:10,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:10,524 INFO L85 PathProgramCache]: Analyzing trace with hash -240367357, now seen corresponding path program 1 times [2024-11-20 14:03:10,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:10,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959829225] [2024-11-20 14:03:10,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:10,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:10,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:10,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:10,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959829225] [2024-11-20 14:03:10,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959829225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:10,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:10,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:10,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729643514] [2024-11-20 14:03:10,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:10,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:10,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:10,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:10,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:10,584 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 183 [2024-11-20 14:03:10,585 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) [2024-11-20 14:03:10,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:10,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 183 [2024-11-20 14:03:10,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:10,611 INFO L124 PetriNetUnfolderBase]: 9/225 cut-off events. [2024-11-20 14:03:10,611 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-20 14:03:10,612 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. [2024-11-20 14:03:10,612 INFO L140 encePairwiseOnDemand]: 177/183 looper letters, 13 selfloop transitions, 2 changer transitions 1/102 dead transitions. [2024-11-20 14:03:10,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 102 transitions, 255 flow [2024-11-20 14:03:10,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:10,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:10,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2024-11-20 14:03:10,614 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.848816029143898 [2024-11-20 14:03:10,614 INFO L175 Difference]: Start difference. First operand has 111 places, 106 transitions, 233 flow. Second operand 3 states and 466 transitions. [2024-11-20 14:03:10,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 102 transitions, 255 flow [2024-11-20 14:03:10,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 102 transitions, 252 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:10,616 INFO L231 Difference]: Finished difference. Result has 111 places, 101 transitions, 224 flow [2024-11-20 14:03:10,617 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} [2024-11-20 14:03:10,617 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 0 predicate places. [2024-11-20 14:03:10,617 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 101 transitions, 224 flow [2024-11-20 14:03:10,618 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) [2024-11-20 14:03:10,618 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:10,618 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] [2024-11-20 14:03:10,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 14:03:10,618 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)] === [2024-11-20 14:03:10,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:10,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1100998214, now seen corresponding path program 1 times [2024-11-20 14:03:10,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:10,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865022422] [2024-11-20 14:03:10,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:10,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:10,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:10,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:10,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865022422] [2024-11-20 14:03:10,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865022422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:10,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:10,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:10,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921958] [2024-11-20 14:03:10,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:10,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:10,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:10,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:10,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:10,671 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 183 [2024-11-20 14:03:10,672 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) [2024-11-20 14:03:10,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:10,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 183 [2024-11-20 14:03:10,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:10,695 INFO L124 PetriNetUnfolderBase]: 5/201 cut-off events. [2024-11-20 14:03:10,696 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-20 14:03:10,696 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. [2024-11-20 14:03:10,697 INFO L140 encePairwiseOnDemand]: 177/183 looper letters, 11 selfloop transitions, 1 changer transitions 24/96 dead transitions. [2024-11-20 14:03:10,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 96 transitions, 242 flow [2024-11-20 14:03:10,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:10,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:10,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 442 transitions. [2024-11-20 14:03:10,698 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8051001821493625 [2024-11-20 14:03:10,698 INFO L175 Difference]: Start difference. First operand has 111 places, 101 transitions, 224 flow. Second operand 3 states and 442 transitions. [2024-11-20 14:03:10,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 96 transitions, 242 flow [2024-11-20 14:03:10,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 96 transitions, 238 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:10,700 INFO L231 Difference]: Finished difference. Result has 105 places, 72 transitions, 162 flow [2024-11-20 14:03:10,700 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} [2024-11-20 14:03:10,701 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, -6 predicate places. [2024-11-20 14:03:10,701 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 72 transitions, 162 flow [2024-11-20 14:03:10,701 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) [2024-11-20 14:03:10,701 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:10,702 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] [2024-11-20 14:03:10,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 14:03:10,702 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)] === [2024-11-20 14:03:10,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:10,702 INFO L85 PathProgramCache]: Analyzing trace with hash 649750583, now seen corresponding path program 1 times [2024-11-20 14:03:10,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:10,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860139165] [2024-11-20 14:03:10,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:10,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:10,825 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-20 14:03:10,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:10,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860139165] [2024-11-20 14:03:10,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860139165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:10,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:10,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:10,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138505616] [2024-11-20 14:03:10,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:10,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:10,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:10,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:10,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:10,868 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 183 [2024-11-20 14:03:10,869 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) [2024-11-20 14:03:10,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:10,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 183 [2024-11-20 14:03:10,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:10,891 INFO L124 PetriNetUnfolderBase]: 0/118 cut-off events. [2024-11-20 14:03:10,891 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-20 14:03:10,891 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. [2024-11-20 14:03:10,892 INFO L140 encePairwiseOnDemand]: 178/183 looper letters, 11 selfloop transitions, 2 changer transitions 3/74 dead transitions. [2024-11-20 14:03:10,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 74 transitions, 198 flow [2024-11-20 14:03:10,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:10,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:10,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 767 transitions. [2024-11-20 14:03:10,894 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8382513661202186 [2024-11-20 14:03:10,894 INFO L175 Difference]: Start difference. First operand has 105 places, 72 transitions, 162 flow. Second operand 5 states and 767 transitions. [2024-11-20 14:03:10,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 74 transitions, 198 flow [2024-11-20 14:03:10,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 74 transitions, 197 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:10,896 INFO L231 Difference]: Finished difference. Result has 85 places, 71 transitions, 167 flow [2024-11-20 14:03:10,896 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} [2024-11-20 14:03:10,897 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, -26 predicate places. [2024-11-20 14:03:10,897 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 71 transitions, 167 flow [2024-11-20 14:03:10,898 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) [2024-11-20 14:03:10,898 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:10,898 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] [2024-11-20 14:03:10,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 14:03:10,898 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)] === [2024-11-20 14:03:10,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:10,898 INFO L85 PathProgramCache]: Analyzing trace with hash -2084519721, now seen corresponding path program 1 times [2024-11-20 14:03:10,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:10,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491188987] [2024-11-20 14:03:10,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:10,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:10,913 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:10,930 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:10,930 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:10,931 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-20 14:03:10,931 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2024-11-20 14:03:10,931 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2024-11-20 14:03:10,931 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2024-11-20 14:03:10,931 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2024-11-20 14:03:10,931 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2024-11-20 14:03:10,932 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 11 remaining) [2024-11-20 14:03:10,932 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2024-11-20 14:03:10,932 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2024-11-20 14:03:10,932 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2024-11-20 14:03:10,932 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2024-11-20 14:03:10,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 14:03:10,932 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:10,933 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:10,933 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-20 14:03:10,965 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:10,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 219 places, 220 transitions, 496 flow [2024-11-20 14:03:10,993 INFO L124 PetriNetUnfolderBase]: 27/351 cut-off events. [2024-11-20 14:03:10,993 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-20 14:03:10,994 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. [2024-11-20 14:03:10,994 INFO L82 GeneralOperation]: Start removeDead. Operand has 219 places, 220 transitions, 496 flow [2024-11-20 14:03:10,996 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 113 transitions, 257 flow [2024-11-20 14:03:10,997 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:10,998 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:10,998 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-20 14:03:10,999 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:10,999 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:10,999 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:10,999 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:10,999 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:10,999 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)] === [2024-11-20 14:03:10,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:10,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1093969155, now seen corresponding path program 1 times [2024-11-20 14:03:11,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:11,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581046148] [2024-11-20 14:03:11,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:11,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:11,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:11,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:11,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581046148] [2024-11-20 14:03:11,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581046148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:11,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:11,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:11,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413942532] [2024-11-20 14:03:11,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:11,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:11,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:11,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:11,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:11,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 220 [2024-11-20 14:03:11,061 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) [2024-11-20 14:03:11,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:11,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 220 [2024-11-20 14:03:11,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:11,096 INFO L124 PetriNetUnfolderBase]: 11/274 cut-off events. [2024-11-20 14:03:11,096 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-20 14:03:11,097 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. [2024-11-20 14:03:11,098 INFO L140 encePairwiseOnDemand]: 214/220 looper letters, 14 selfloop transitions, 2 changer transitions 1/109 dead transitions. [2024-11-20 14:03:11,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 109 transitions, 281 flow [2024-11-20 14:03:11,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:11,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:11,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 557 transitions. [2024-11-20 14:03:11,100 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.843939393939394 [2024-11-20 14:03:11,100 INFO L175 Difference]: Start difference. First operand has 120 places, 113 transitions, 257 flow. Second operand 3 states and 557 transitions. [2024-11-20 14:03:11,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 109 transitions, 281 flow [2024-11-20 14:03:11,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 109 transitions, 274 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:11,103 INFO L231 Difference]: Finished difference. Result has 120 places, 108 transitions, 244 flow [2024-11-20 14:03:11,103 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} [2024-11-20 14:03:11,104 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 0 predicate places. [2024-11-20 14:03:11,104 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 108 transitions, 244 flow [2024-11-20 14:03:11,105 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) [2024-11-20 14:03:11,105 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:11,105 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] [2024-11-20 14:03:11,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 14:03:11,105 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)] === [2024-11-20 14:03:11,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:11,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1644062394, now seen corresponding path program 1 times [2024-11-20 14:03:11,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:11,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587074526] [2024-11-20 14:03:11,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:11,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:11,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:11,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:11,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:11,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587074526] [2024-11-20 14:03:11,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587074526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:11,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:11,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:11,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288078113] [2024-11-20 14:03:11,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:11,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:11,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:11,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:11,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:11,156 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 220 [2024-11-20 14:03:11,157 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) [2024-11-20 14:03:11,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:11,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 220 [2024-11-20 14:03:11,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:11,192 INFO L124 PetriNetUnfolderBase]: 6/245 cut-off events. [2024-11-20 14:03:11,192 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-20 14:03:11,193 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. [2024-11-20 14:03:11,193 INFO L140 encePairwiseOnDemand]: 214/220 looper letters, 12 selfloop transitions, 1 changer transitions 24/103 dead transitions. [2024-11-20 14:03:11,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 103 transitions, 264 flow [2024-11-20 14:03:11,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:11,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:11,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 527 transitions. [2024-11-20 14:03:11,195 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7984848484848485 [2024-11-20 14:03:11,195 INFO L175 Difference]: Start difference. First operand has 120 places, 108 transitions, 244 flow. Second operand 3 states and 527 transitions. [2024-11-20 14:03:11,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 103 transitions, 264 flow [2024-11-20 14:03:11,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 103 transitions, 260 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:11,197 INFO L231 Difference]: Finished difference. Result has 114 places, 79 transitions, 182 flow [2024-11-20 14:03:11,197 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} [2024-11-20 14:03:11,198 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, -6 predicate places. [2024-11-20 14:03:11,199 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 79 transitions, 182 flow [2024-11-20 14:03:11,199 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) [2024-11-20 14:03:11,199 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:11,199 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] [2024-11-20 14:03:11,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 14:03:11,200 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)] === [2024-11-20 14:03:11,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:11,201 INFO L85 PathProgramCache]: Analyzing trace with hash 344469891, now seen corresponding path program 1 times [2024-11-20 14:03:11,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:11,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867598977] [2024-11-20 14:03:11,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:11,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:11,343 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-20 14:03:11,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:11,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867598977] [2024-11-20 14:03:11,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867598977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:11,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:11,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:11,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895036130] [2024-11-20 14:03:11,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:11,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:11,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:11,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:11,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:11,393 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 220 [2024-11-20 14:03:11,394 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) [2024-11-20 14:03:11,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:11,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 220 [2024-11-20 14:03:11,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:11,434 INFO L124 PetriNetUnfolderBase]: 0/138 cut-off events. [2024-11-20 14:03:11,434 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-20 14:03:11,434 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. [2024-11-20 14:03:11,435 INFO L140 encePairwiseOnDemand]: 215/220 looper letters, 12 selfloop transitions, 2 changer transitions 3/81 dead transitions. [2024-11-20 14:03:11,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 81 transitions, 220 flow [2024-11-20 14:03:11,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:11,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:11,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 923 transitions. [2024-11-20 14:03:11,437 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8390909090909091 [2024-11-20 14:03:11,437 INFO L175 Difference]: Start difference. First operand has 114 places, 79 transitions, 182 flow. Second operand 5 states and 923 transitions. [2024-11-20 14:03:11,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 81 transitions, 220 flow [2024-11-20 14:03:11,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 81 transitions, 219 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:11,440 INFO L231 Difference]: Finished difference. Result has 94 places, 78 transitions, 187 flow [2024-11-20 14:03:11,440 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} [2024-11-20 14:03:11,441 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, -26 predicate places. [2024-11-20 14:03:11,442 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 78 transitions, 187 flow [2024-11-20 14:03:11,442 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) [2024-11-20 14:03:11,443 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:11,443 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] [2024-11-20 14:03:11,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 14:03:11,443 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)] === [2024-11-20 14:03:11,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:11,444 INFO L85 PathProgramCache]: Analyzing trace with hash -229009337, now seen corresponding path program 1 times [2024-11-20 14:03:11,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:11,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914787710] [2024-11-20 14:03:11,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:11,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:11,467 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:11,491 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:11,491 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:11,491 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-20 14:03:11,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-20 14:03:11,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-20 14:03:11,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-20 14:03:11,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-20 14:03:11,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-20 14:03:11,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2024-11-20 14:03:11,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-20 14:03:11,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-20 14:03:11,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-20 14:03:11,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-20 14:03:11,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-20 14:03:11,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 14:03:11,493 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:11,494 WARN L244 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:11,494 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-20 14:03:11,541 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:11,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 256 places, 257 transitions, 594 flow [2024-11-20 14:03:11,578 INFO L124 PetriNetUnfolderBase]: 32/415 cut-off events. [2024-11-20 14:03:11,578 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-20 14:03:11,579 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. [2024-11-20 14:03:11,579 INFO L82 GeneralOperation]: Start removeDead. Operand has 256 places, 257 transitions, 594 flow [2024-11-20 14:03:11,582 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 120 transitions, 283 flow [2024-11-20 14:03:11,583 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:11,583 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:11,584 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-20 14:03:11,586 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:11,586 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:11,586 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:11,586 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:11,586 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:11,586 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)] === [2024-11-20 14:03:11,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:11,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1915566589, now seen corresponding path program 1 times [2024-11-20 14:03:11,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:11,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192540002] [2024-11-20 14:03:11,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:11,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:11,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:11,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:11,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192540002] [2024-11-20 14:03:11,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192540002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:11,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:11,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:11,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357998586] [2024-11-20 14:03:11,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:11,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:11,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:11,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:11,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:11,662 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 257 [2024-11-20 14:03:11,663 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) [2024-11-20 14:03:11,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:11,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 257 [2024-11-20 14:03:11,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:11,702 INFO L124 PetriNetUnfolderBase]: 13/323 cut-off events. [2024-11-20 14:03:11,703 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-20 14:03:11,703 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. [2024-11-20 14:03:11,704 INFO L140 encePairwiseOnDemand]: 251/257 looper letters, 15 selfloop transitions, 2 changer transitions 1/116 dead transitions. [2024-11-20 14:03:11,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 116 transitions, 309 flow [2024-11-20 14:03:11,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:11,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:11,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 648 transitions. [2024-11-20 14:03:11,706 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8404669260700389 [2024-11-20 14:03:11,706 INFO L175 Difference]: Start difference. First operand has 129 places, 120 transitions, 283 flow. Second operand 3 states and 648 transitions. [2024-11-20 14:03:11,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 116 transitions, 309 flow [2024-11-20 14:03:11,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 116 transitions, 296 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:11,709 INFO L231 Difference]: Finished difference. Result has 129 places, 115 transitions, 264 flow [2024-11-20 14:03:11,709 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} [2024-11-20 14:03:11,711 INFO L277 CegarLoopForPetriNet]: 129 programPoint places, 0 predicate places. [2024-11-20 14:03:11,711 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 115 transitions, 264 flow [2024-11-20 14:03:11,711 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) [2024-11-20 14:03:11,711 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:11,711 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] [2024-11-20 14:03:11,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 14:03:11,711 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)] === [2024-11-20 14:03:11,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:11,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1025503878, now seen corresponding path program 1 times [2024-11-20 14:03:11,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:11,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834944290] [2024-11-20 14:03:11,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:11,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:11,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:11,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:11,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834944290] [2024-11-20 14:03:11,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834944290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:11,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:11,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:11,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16601953] [2024-11-20 14:03:11,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:11,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:11,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:11,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:11,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:11,767 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 257 [2024-11-20 14:03:11,768 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) [2024-11-20 14:03:11,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:11,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 257 [2024-11-20 14:03:11,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:11,805 INFO L124 PetriNetUnfolderBase]: 7/289 cut-off events. [2024-11-20 14:03:11,806 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-20 14:03:11,806 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. [2024-11-20 14:03:11,807 INFO L140 encePairwiseOnDemand]: 251/257 looper letters, 13 selfloop transitions, 1 changer transitions 24/110 dead transitions. [2024-11-20 14:03:11,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 110 transitions, 286 flow [2024-11-20 14:03:11,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:11,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:11,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 612 transitions. [2024-11-20 14:03:11,809 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7937743190661478 [2024-11-20 14:03:11,809 INFO L175 Difference]: Start difference. First operand has 129 places, 115 transitions, 264 flow. Second operand 3 states and 612 transitions. [2024-11-20 14:03:11,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 110 transitions, 286 flow [2024-11-20 14:03:11,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 110 transitions, 282 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:11,811 INFO L231 Difference]: Finished difference. Result has 123 places, 86 transitions, 202 flow [2024-11-20 14:03:11,811 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} [2024-11-20 14:03:11,812 INFO L277 CegarLoopForPetriNet]: 129 programPoint places, -6 predicate places. [2024-11-20 14:03:11,812 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 86 transitions, 202 flow [2024-11-20 14:03:11,812 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) [2024-11-20 14:03:11,812 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:11,812 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] [2024-11-20 14:03:11,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 14:03:11,812 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)] === [2024-11-20 14:03:11,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:11,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1179719643, now seen corresponding path program 1 times [2024-11-20 14:03:11,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:11,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270999974] [2024-11-20 14:03:11,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:11,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:11,950 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-20 14:03:11,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:11,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270999974] [2024-11-20 14:03:11,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270999974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:11,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:11,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:11,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211218684] [2024-11-20 14:03:11,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:11,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:11,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:11,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:11,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:12,010 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 257 [2024-11-20 14:03:12,012 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) [2024-11-20 14:03:12,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:12,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 257 [2024-11-20 14:03:12,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:12,046 INFO L124 PetriNetUnfolderBase]: 0/158 cut-off events. [2024-11-20 14:03:12,046 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-11-20 14:03:12,046 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. [2024-11-20 14:03:12,046 INFO L140 encePairwiseOnDemand]: 252/257 looper letters, 13 selfloop transitions, 2 changer transitions 3/88 dead transitions. [2024-11-20 14:03:12,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 88 transitions, 242 flow [2024-11-20 14:03:12,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:12,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:12,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1079 transitions. [2024-11-20 14:03:12,050 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8396887159533074 [2024-11-20 14:03:12,050 INFO L175 Difference]: Start difference. First operand has 123 places, 86 transitions, 202 flow. Second operand 5 states and 1079 transitions. [2024-11-20 14:03:12,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 88 transitions, 242 flow [2024-11-20 14:03:12,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 88 transitions, 241 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:12,052 INFO L231 Difference]: Finished difference. Result has 103 places, 85 transitions, 207 flow [2024-11-20 14:03:12,053 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} [2024-11-20 14:03:12,053 INFO L277 CegarLoopForPetriNet]: 129 programPoint places, -26 predicate places. [2024-11-20 14:03:12,053 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 85 transitions, 207 flow [2024-11-20 14:03:12,055 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) [2024-11-20 14:03:12,055 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:12,055 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] [2024-11-20 14:03:12,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 14:03:12,056 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)] === [2024-11-20 14:03:12,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:12,056 INFO L85 PathProgramCache]: Analyzing trace with hash 105758878, now seen corresponding path program 1 times [2024-11-20 14:03:12,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:12,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321671159] [2024-11-20 14:03:12,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:12,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:12,087 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:12,121 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:12,121 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:12,122 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-20 14:03:12,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2024-11-20 14:03:12,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2024-11-20 14:03:12,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2024-11-20 14:03:12,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2024-11-20 14:03:12,122 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2024-11-20 14:03:12,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2024-11-20 14:03:12,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2024-11-20 14:03:12,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2024-11-20 14:03:12,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2024-11-20 14:03:12,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2024-11-20 14:03:12,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2024-11-20 14:03:12,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2024-11-20 14:03:12,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 14:03:12,124 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:12,124 WARN L244 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:12,125 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2024-11-20 14:03:12,180 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:12,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 293 places, 294 transitions, 696 flow [2024-11-20 14:03:12,225 INFO L124 PetriNetUnfolderBase]: 37/479 cut-off events. [2024-11-20 14:03:12,225 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-20 14:03:12,226 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. [2024-11-20 14:03:12,226 INFO L82 GeneralOperation]: Start removeDead. Operand has 293 places, 294 transitions, 696 flow [2024-11-20 14:03:12,228 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 127 transitions, 311 flow [2024-11-20 14:03:12,229 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:12,229 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:12,229 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-20 14:03:12,232 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:12,232 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:12,232 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:12,232 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:12,233 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:12,233 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)] === [2024-11-20 14:03:12,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:12,233 INFO L85 PathProgramCache]: Analyzing trace with hash -679039997, now seen corresponding path program 1 times [2024-11-20 14:03:12,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:12,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967452135] [2024-11-20 14:03:12,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:12,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:12,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:12,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:12,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967452135] [2024-11-20 14:03:12,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967452135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:12,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:12,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:12,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321895073] [2024-11-20 14:03:12,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:12,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:12,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:12,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:12,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:12,299 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 294 [2024-11-20 14:03:12,300 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) [2024-11-20 14:03:12,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:12,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 294 [2024-11-20 14:03:12,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:12,346 INFO L124 PetriNetUnfolderBase]: 15/372 cut-off events. [2024-11-20 14:03:12,346 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2024-11-20 14:03:12,347 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. [2024-11-20 14:03:12,348 INFO L140 encePairwiseOnDemand]: 288/294 looper letters, 16 selfloop transitions, 2 changer transitions 1/123 dead transitions. [2024-11-20 14:03:12,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 123 transitions, 339 flow [2024-11-20 14:03:12,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:12,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:12,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 739 transitions. [2024-11-20 14:03:12,350 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8378684807256236 [2024-11-20 14:03:12,350 INFO L175 Difference]: Start difference. First operand has 138 places, 127 transitions, 311 flow. Second operand 3 states and 739 transitions. [2024-11-20 14:03:12,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 123 transitions, 339 flow [2024-11-20 14:03:12,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 123 transitions, 318 flow, removed 10 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:12,352 INFO L231 Difference]: Finished difference. Result has 138 places, 122 transitions, 284 flow [2024-11-20 14:03:12,352 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} [2024-11-20 14:03:12,353 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 0 predicate places. [2024-11-20 14:03:12,353 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 122 transitions, 284 flow [2024-11-20 14:03:12,353 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) [2024-11-20 14:03:12,353 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:12,353 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] [2024-11-20 14:03:12,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 14:03:12,354 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)] === [2024-11-20 14:03:12,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:12,354 INFO L85 PathProgramCache]: Analyzing trace with hash 519762438, now seen corresponding path program 1 times [2024-11-20 14:03:12,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:12,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987952812] [2024-11-20 14:03:12,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:12,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:12,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:12,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:12,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987952812] [2024-11-20 14:03:12,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987952812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:12,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:12,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:12,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421635734] [2024-11-20 14:03:12,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:12,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:12,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:12,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:12,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:12,406 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 294 [2024-11-20 14:03:12,406 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) [2024-11-20 14:03:12,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:12,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 294 [2024-11-20 14:03:12,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:12,455 INFO L124 PetriNetUnfolderBase]: 8/333 cut-off events. [2024-11-20 14:03:12,455 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-20 14:03:12,456 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. [2024-11-20 14:03:12,456 INFO L140 encePairwiseOnDemand]: 288/294 looper letters, 14 selfloop transitions, 1 changer transitions 24/117 dead transitions. [2024-11-20 14:03:12,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 117 transitions, 308 flow [2024-11-20 14:03:12,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:12,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:12,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 697 transitions. [2024-11-20 14:03:12,458 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7902494331065759 [2024-11-20 14:03:12,458 INFO L175 Difference]: Start difference. First operand has 138 places, 122 transitions, 284 flow. Second operand 3 states and 697 transitions. [2024-11-20 14:03:12,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 117 transitions, 308 flow [2024-11-20 14:03:12,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 117 transitions, 304 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:12,461 INFO L231 Difference]: Finished difference. Result has 132 places, 93 transitions, 222 flow [2024-11-20 14:03:12,461 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} [2024-11-20 14:03:12,462 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, -6 predicate places. [2024-11-20 14:03:12,462 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 93 transitions, 222 flow [2024-11-20 14:03:12,462 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) [2024-11-20 14:03:12,462 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:12,463 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] [2024-11-20 14:03:12,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 14:03:12,463 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)] === [2024-11-20 14:03:12,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:12,464 INFO L85 PathProgramCache]: Analyzing trace with hash -474563425, now seen corresponding path program 1 times [2024-11-20 14:03:12,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:12,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091573929] [2024-11-20 14:03:12,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:12,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:12,590 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-20 14:03:12,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:12,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091573929] [2024-11-20 14:03:12,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091573929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:12,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:12,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:12,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906588321] [2024-11-20 14:03:12,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:12,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:12,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:12,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:12,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:12,646 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 294 [2024-11-20 14:03:12,647 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) [2024-11-20 14:03:12,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:12,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 294 [2024-11-20 14:03:12,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:12,675 INFO L124 PetriNetUnfolderBase]: 0/178 cut-off events. [2024-11-20 14:03:12,675 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-20 14:03:12,675 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. [2024-11-20 14:03:12,675 INFO L140 encePairwiseOnDemand]: 289/294 looper letters, 14 selfloop transitions, 2 changer transitions 3/95 dead transitions. [2024-11-20 14:03:12,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 95 transitions, 264 flow [2024-11-20 14:03:12,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:12,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:12,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1235 transitions. [2024-11-20 14:03:12,678 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8401360544217688 [2024-11-20 14:03:12,678 INFO L175 Difference]: Start difference. First operand has 132 places, 93 transitions, 222 flow. Second operand 5 states and 1235 transitions. [2024-11-20 14:03:12,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 95 transitions, 264 flow [2024-11-20 14:03:12,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 95 transitions, 263 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:12,682 INFO L231 Difference]: Finished difference. Result has 112 places, 92 transitions, 227 flow [2024-11-20 14:03:12,682 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} [2024-11-20 14:03:12,683 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, -26 predicate places. [2024-11-20 14:03:12,683 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 92 transitions, 227 flow [2024-11-20 14:03:12,684 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) [2024-11-20 14:03:12,684 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:12,684 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] [2024-11-20 14:03:12,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 14:03:12,684 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)] === [2024-11-20 14:03:12,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:12,684 INFO L85 PathProgramCache]: Analyzing trace with hash -752350852, now seen corresponding path program 1 times [2024-11-20 14:03:12,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:12,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880093341] [2024-11-20 14:03:12,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:12,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:12,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:12,743 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:12,743 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:12,743 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2024-11-20 14:03:12,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2024-11-20 14:03:12,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2024-11-20 14:03:12,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2024-11-20 14:03:12,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2024-11-20 14:03:12,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2024-11-20 14:03:12,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 14 remaining) [2024-11-20 14:03:12,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2024-11-20 14:03:12,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2024-11-20 14:03:12,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2024-11-20 14:03:12,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2024-11-20 14:03:12,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2024-11-20 14:03:12,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2024-11-20 14:03:12,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2024-11-20 14:03:12,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 14:03:12,745 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:12,745 WARN L244 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:12,745 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2024-11-20 14:03:12,793 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:12,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 330 places, 331 transitions, 802 flow [2024-11-20 14:03:12,843 INFO L124 PetriNetUnfolderBase]: 42/543 cut-off events. [2024-11-20 14:03:12,843 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-11-20 14:03:12,845 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. [2024-11-20 14:03:12,845 INFO L82 GeneralOperation]: Start removeDead. Operand has 330 places, 331 transitions, 802 flow [2024-11-20 14:03:12,848 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 134 transitions, 341 flow [2024-11-20 14:03:12,849 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:12,849 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:12,849 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-20 14:03:12,851 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:12,851 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:12,851 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:12,851 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:12,851 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:12,852 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)] === [2024-11-20 14:03:12,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:12,853 INFO L85 PathProgramCache]: Analyzing trace with hash 508581635, now seen corresponding path program 1 times [2024-11-20 14:03:12,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:12,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414901595] [2024-11-20 14:03:12,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:12,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:12,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:12,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:12,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:12,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414901595] [2024-11-20 14:03:12,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414901595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:12,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:12,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:12,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358797526] [2024-11-20 14:03:12,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:12,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:12,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:12,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:12,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:12,922 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 331 [2024-11-20 14:03:12,923 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) [2024-11-20 14:03:12,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:12,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 331 [2024-11-20 14:03:12,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:12,979 INFO L124 PetriNetUnfolderBase]: 17/421 cut-off events. [2024-11-20 14:03:12,979 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-11-20 14:03:12,981 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. [2024-11-20 14:03:12,982 INFO L140 encePairwiseOnDemand]: 325/331 looper letters, 17 selfloop transitions, 2 changer transitions 1/130 dead transitions. [2024-11-20 14:03:12,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 130 transitions, 371 flow [2024-11-20 14:03:12,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:12,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:12,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 830 transitions. [2024-11-20 14:03:12,984 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8358509566968781 [2024-11-20 14:03:12,984 INFO L175 Difference]: Start difference. First operand has 147 places, 134 transitions, 341 flow. Second operand 3 states and 830 transitions. [2024-11-20 14:03:12,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 130 transitions, 371 flow [2024-11-20 14:03:12,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 130 transitions, 340 flow, removed 15 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:12,988 INFO L231 Difference]: Finished difference. Result has 147 places, 129 transitions, 304 flow [2024-11-20 14:03:12,988 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} [2024-11-20 14:03:12,988 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 0 predicate places. [2024-11-20 14:03:12,988 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 129 transitions, 304 flow [2024-11-20 14:03:12,989 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) [2024-11-20 14:03:12,989 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:12,989 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] [2024-11-20 14:03:12,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-20 14:03:12,990 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)] === [2024-11-20 14:03:12,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:12,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1133680582, now seen corresponding path program 1 times [2024-11-20 14:03:12,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:12,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011071584] [2024-11-20 14:03:12,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:12,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:13,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:13,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:13,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011071584] [2024-11-20 14:03:13,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011071584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:13,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:13,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:13,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514470133] [2024-11-20 14:03:13,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:13,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:13,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:13,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:13,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:13,042 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 331 [2024-11-20 14:03:13,043 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) [2024-11-20 14:03:13,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:13,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 331 [2024-11-20 14:03:13,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:13,123 INFO L124 PetriNetUnfolderBase]: 9/377 cut-off events. [2024-11-20 14:03:13,123 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-20 14:03:13,124 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. [2024-11-20 14:03:13,124 INFO L140 encePairwiseOnDemand]: 325/331 looper letters, 15 selfloop transitions, 1 changer transitions 24/124 dead transitions. [2024-11-20 14:03:13,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 124 transitions, 330 flow [2024-11-20 14:03:13,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:13,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:13,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 782 transitions. [2024-11-20 14:03:13,126 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7875125881168177 [2024-11-20 14:03:13,126 INFO L175 Difference]: Start difference. First operand has 147 places, 129 transitions, 304 flow. Second operand 3 states and 782 transitions. [2024-11-20 14:03:13,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 124 transitions, 330 flow [2024-11-20 14:03:13,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 124 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:13,129 INFO L231 Difference]: Finished difference. Result has 141 places, 100 transitions, 242 flow [2024-11-20 14:03:13,129 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} [2024-11-20 14:03:13,129 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, -6 predicate places. [2024-11-20 14:03:13,129 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 100 transitions, 242 flow [2024-11-20 14:03:13,130 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) [2024-11-20 14:03:13,130 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:13,130 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] [2024-11-20 14:03:13,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-20 14:03:13,130 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)] === [2024-11-20 14:03:13,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:13,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1607761617, now seen corresponding path program 1 times [2024-11-20 14:03:13,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:13,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785424086] [2024-11-20 14:03:13,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:13,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:13,229 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2024-11-20 14:03:13,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:13,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785424086] [2024-11-20 14:03:13,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785424086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:13,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:13,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:13,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056296391] [2024-11-20 14:03:13,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:13,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:13,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:13,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:13,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:13,297 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 331 [2024-11-20 14:03:13,299 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) [2024-11-20 14:03:13,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:13,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 331 [2024-11-20 14:03:13,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:13,335 INFO L124 PetriNetUnfolderBase]: 0/198 cut-off events. [2024-11-20 14:03:13,336 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-20 14:03:13,336 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. [2024-11-20 14:03:13,337 INFO L140 encePairwiseOnDemand]: 326/331 looper letters, 15 selfloop transitions, 2 changer transitions 3/102 dead transitions. [2024-11-20 14:03:13,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 102 transitions, 286 flow [2024-11-20 14:03:13,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:13,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:13,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1391 transitions. [2024-11-20 14:03:13,340 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8404833836858006 [2024-11-20 14:03:13,340 INFO L175 Difference]: Start difference. First operand has 141 places, 100 transitions, 242 flow. Second operand 5 states and 1391 transitions. [2024-11-20 14:03:13,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 102 transitions, 286 flow [2024-11-20 14:03:13,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 102 transitions, 285 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:13,343 INFO L231 Difference]: Finished difference. Result has 121 places, 99 transitions, 247 flow [2024-11-20 14:03:13,344 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} [2024-11-20 14:03:13,344 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, -26 predicate places. [2024-11-20 14:03:13,344 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 99 transitions, 247 flow [2024-11-20 14:03:13,345 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) [2024-11-20 14:03:13,346 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:13,346 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] [2024-11-20 14:03:13,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-20 14:03:13,346 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)] === [2024-11-20 14:03:13,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:13,347 INFO L85 PathProgramCache]: Analyzing trace with hash -393731455, now seen corresponding path program 1 times [2024-11-20 14:03:13,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:13,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168869198] [2024-11-20 14:03:13,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:13,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:13,368 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:13,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:13,403 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:13,403 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:13,403 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-20 14:03:13,403 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-20 14:03:13,404 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-20 14:03:13,404 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-20 14:03:13,404 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-20 14:03:13,404 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-20 14:03:13,404 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2024-11-20 14:03:13,404 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-20 14:03:13,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-20 14:03:13,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-20 14:03:13,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-20 14:03:13,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-20 14:03:13,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-20 14:03:13,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-20 14:03:13,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-20 14:03:13,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-20 14:03:13,406 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:13,406 WARN L244 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:13,406 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2024-11-20 14:03:13,459 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:13,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 367 places, 368 transitions, 912 flow [2024-11-20 14:03:13,516 INFO L124 PetriNetUnfolderBase]: 47/607 cut-off events. [2024-11-20 14:03:13,516 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-20 14:03:13,518 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. [2024-11-20 14:03:13,519 INFO L82 GeneralOperation]: Start removeDead. Operand has 367 places, 368 transitions, 912 flow [2024-11-20 14:03:13,522 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 141 transitions, 373 flow [2024-11-20 14:03:13,523 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:13,523 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:13,523 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-20 14:03:13,524 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:13,524 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:13,524 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:13,524 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:13,525 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:13,525 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)] === [2024-11-20 14:03:13,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:13,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1647298307, now seen corresponding path program 1 times [2024-11-20 14:03:13,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:13,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743999190] [2024-11-20 14:03:13,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:13,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:13,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:13,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:13,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:13,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743999190] [2024-11-20 14:03:13,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743999190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:13,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:13,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:13,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779752184] [2024-11-20 14:03:13,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:13,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:13,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:13,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:13,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:13,604 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 368 [2024-11-20 14:03:13,606 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) [2024-11-20 14:03:13,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:13,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 368 [2024-11-20 14:03:13,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:13,685 INFO L124 PetriNetUnfolderBase]: 19/470 cut-off events. [2024-11-20 14:03:13,686 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2024-11-20 14:03:13,687 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. [2024-11-20 14:03:13,689 INFO L140 encePairwiseOnDemand]: 362/368 looper letters, 18 selfloop transitions, 2 changer transitions 1/137 dead transitions. [2024-11-20 14:03:13,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 137 transitions, 405 flow [2024-11-20 14:03:13,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:13,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:13,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2024-11-20 14:03:13,692 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8342391304347826 [2024-11-20 14:03:13,692 INFO L175 Difference]: Start difference. First operand has 156 places, 141 transitions, 373 flow. Second operand 3 states and 921 transitions. [2024-11-20 14:03:13,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 137 transitions, 405 flow [2024-11-20 14:03:13,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 137 transitions, 362 flow, removed 21 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:13,695 INFO L231 Difference]: Finished difference. Result has 156 places, 136 transitions, 324 flow [2024-11-20 14:03:13,695 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} [2024-11-20 14:03:13,696 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, 0 predicate places. [2024-11-20 14:03:13,696 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 136 transitions, 324 flow [2024-11-20 14:03:13,696 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) [2024-11-20 14:03:13,696 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:13,696 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] [2024-11-20 14:03:13,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-20 14:03:13,697 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)] === [2024-11-20 14:03:13,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:13,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1427708986, now seen corresponding path program 1 times [2024-11-20 14:03:13,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:13,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301957409] [2024-11-20 14:03:13,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:13,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:13,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:13,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:13,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301957409] [2024-11-20 14:03:13,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301957409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:13,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:13,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:13,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697831522] [2024-11-20 14:03:13,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:13,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:13,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:13,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:13,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:13,754 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 368 [2024-11-20 14:03:13,755 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) [2024-11-20 14:03:13,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:13,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 368 [2024-11-20 14:03:13,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:13,818 INFO L124 PetriNetUnfolderBase]: 10/421 cut-off events. [2024-11-20 14:03:13,819 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-20 14:03:13,820 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. [2024-11-20 14:03:13,821 INFO L140 encePairwiseOnDemand]: 362/368 looper letters, 16 selfloop transitions, 1 changer transitions 24/131 dead transitions. [2024-11-20 14:03:13,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 131 transitions, 352 flow [2024-11-20 14:03:13,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:13,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:13,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 867 transitions. [2024-11-20 14:03:13,824 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7853260869565217 [2024-11-20 14:03:13,824 INFO L175 Difference]: Start difference. First operand has 156 places, 136 transitions, 324 flow. Second operand 3 states and 867 transitions. [2024-11-20 14:03:13,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 131 transitions, 352 flow [2024-11-20 14:03:13,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 131 transitions, 348 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:13,826 INFO L231 Difference]: Finished difference. Result has 150 places, 107 transitions, 262 flow [2024-11-20 14:03:13,827 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} [2024-11-20 14:03:13,827 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, -6 predicate places. [2024-11-20 14:03:13,827 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 107 transitions, 262 flow [2024-11-20 14:03:13,828 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) [2024-11-20 14:03:13,828 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:13,828 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] [2024-11-20 14:03:13,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-20 14:03:13,828 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)] === [2024-11-20 14:03:13,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:13,829 INFO L85 PathProgramCache]: Analyzing trace with hash 506889963, now seen corresponding path program 1 times [2024-11-20 14:03:13,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:13,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661178661] [2024-11-20 14:03:13,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:13,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:13,943 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2024-11-20 14:03:13,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:13,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661178661] [2024-11-20 14:03:13,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661178661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:13,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:13,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:13,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932642840] [2024-11-20 14:03:13,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:13,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:13,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:13,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:13,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:14,007 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 368 [2024-11-20 14:03:14,009 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) [2024-11-20 14:03:14,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:14,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 368 [2024-11-20 14:03:14,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:14,044 INFO L124 PetriNetUnfolderBase]: 0/218 cut-off events. [2024-11-20 14:03:14,044 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-20 14:03:14,044 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. [2024-11-20 14:03:14,045 INFO L140 encePairwiseOnDemand]: 363/368 looper letters, 16 selfloop transitions, 2 changer transitions 3/109 dead transitions. [2024-11-20 14:03:14,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 109 transitions, 308 flow [2024-11-20 14:03:14,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:14,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:14,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1547 transitions. [2024-11-20 14:03:14,048 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8407608695652173 [2024-11-20 14:03:14,048 INFO L175 Difference]: Start difference. First operand has 150 places, 107 transitions, 262 flow. Second operand 5 states and 1547 transitions. [2024-11-20 14:03:14,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 109 transitions, 308 flow [2024-11-20 14:03:14,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 109 transitions, 307 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:14,050 INFO L231 Difference]: Finished difference. Result has 130 places, 106 transitions, 267 flow [2024-11-20 14:03:14,051 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} [2024-11-20 14:03:14,051 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, -26 predicate places. [2024-11-20 14:03:14,051 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 106 transitions, 267 flow [2024-11-20 14:03:14,052 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) [2024-11-20 14:03:14,052 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:14,053 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] [2024-11-20 14:03:14,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-20 14:03:14,053 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)] === [2024-11-20 14:03:14,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:14,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1675533133, now seen corresponding path program 1 times [2024-11-20 14:03:14,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:14,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043266593] [2024-11-20 14:03:14,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:14,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:14,074 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:14,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:14,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:14,098 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:14,098 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-11-20 14:03:14,098 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-11-20 14:03:14,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-11-20 14:03:14,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-11-20 14:03:14,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-11-20 14:03:14,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-11-20 14:03:14,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 16 remaining) [2024-11-20 14:03:14,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-11-20 14:03:14,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-11-20 14:03:14,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-11-20 14:03:14,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-11-20 14:03:14,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-11-20 14:03:14,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-11-20 14:03:14,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-11-20 14:03:14,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-11-20 14:03:14,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-11-20 14:03:14,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-20 14:03:14,100 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:14,101 WARN L244 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:14,101 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2024-11-20 14:03:14,186 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:14,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 404 places, 405 transitions, 1026 flow [2024-11-20 14:03:14,281 INFO L124 PetriNetUnfolderBase]: 52/671 cut-off events. [2024-11-20 14:03:14,281 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2024-11-20 14:03:14,284 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. [2024-11-20 14:03:14,284 INFO L82 GeneralOperation]: Start removeDead. Operand has 404 places, 405 transitions, 1026 flow [2024-11-20 14:03:14,287 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 165 places, 148 transitions, 407 flow [2024-11-20 14:03:14,289 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:14,289 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:14,289 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-20 14:03:14,292 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:14,292 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:14,292 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:14,292 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:14,292 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:14,292 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)] === [2024-11-20 14:03:14,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:14,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1557857277, now seen corresponding path program 1 times [2024-11-20 14:03:14,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:14,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548225915] [2024-11-20 14:03:14,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:14,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:14,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:14,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:14,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:14,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548225915] [2024-11-20 14:03:14,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548225915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:14,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:14,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:14,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046481096] [2024-11-20 14:03:14,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:14,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:14,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:14,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:14,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:14,381 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 405 [2024-11-20 14:03:14,382 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) [2024-11-20 14:03:14,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:14,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 405 [2024-11-20 14:03:14,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:14,456 INFO L124 PetriNetUnfolderBase]: 21/519 cut-off events. [2024-11-20 14:03:14,456 INFO L125 PetriNetUnfolderBase]: For 211/211 co-relation queries the response was YES. [2024-11-20 14:03:14,458 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. [2024-11-20 14:03:14,460 INFO L140 encePairwiseOnDemand]: 399/405 looper letters, 19 selfloop transitions, 2 changer transitions 1/144 dead transitions. [2024-11-20 14:03:14,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 144 transitions, 441 flow [2024-11-20 14:03:14,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:14,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:14,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1012 transitions. [2024-11-20 14:03:14,462 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8329218106995885 [2024-11-20 14:03:14,463 INFO L175 Difference]: Start difference. First operand has 165 places, 148 transitions, 407 flow. Second operand 3 states and 1012 transitions. [2024-11-20 14:03:14,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 144 transitions, 441 flow [2024-11-20 14:03:14,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 144 transitions, 384 flow, removed 28 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:14,466 INFO L231 Difference]: Finished difference. Result has 165 places, 143 transitions, 344 flow [2024-11-20 14:03:14,466 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} [2024-11-20 14:03:14,467 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 0 predicate places. [2024-11-20 14:03:14,467 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 143 transitions, 344 flow [2024-11-20 14:03:14,467 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) [2024-11-20 14:03:14,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:14,467 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] [2024-11-20 14:03:14,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-20 14:03:14,468 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)] === [2024-11-20 14:03:14,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:14,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1425528326, now seen corresponding path program 1 times [2024-11-20 14:03:14,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:14,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375613448] [2024-11-20 14:03:14,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:14,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:14,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:14,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:14,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:14,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375613448] [2024-11-20 14:03:14,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375613448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:14,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:14,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:14,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620499762] [2024-11-20 14:03:14,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:14,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:14,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:14,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:14,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:14,531 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 405 [2024-11-20 14:03:14,533 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) [2024-11-20 14:03:14,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:14,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 405 [2024-11-20 14:03:14,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:14,594 INFO L124 PetriNetUnfolderBase]: 11/465 cut-off events. [2024-11-20 14:03:14,594 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-20 14:03:14,596 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. [2024-11-20 14:03:14,597 INFO L140 encePairwiseOnDemand]: 399/405 looper letters, 17 selfloop transitions, 1 changer transitions 24/138 dead transitions. [2024-11-20 14:03:14,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 138 transitions, 374 flow [2024-11-20 14:03:14,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:14,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:14,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 952 transitions. [2024-11-20 14:03:14,599 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7835390946502058 [2024-11-20 14:03:14,599 INFO L175 Difference]: Start difference. First operand has 165 places, 143 transitions, 344 flow. Second operand 3 states and 952 transitions. [2024-11-20 14:03:14,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 138 transitions, 374 flow [2024-11-20 14:03:14,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 138 transitions, 370 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:14,602 INFO L231 Difference]: Finished difference. Result has 159 places, 114 transitions, 282 flow [2024-11-20 14:03:14,602 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} [2024-11-20 14:03:14,603 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, -6 predicate places. [2024-11-20 14:03:14,603 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 114 transitions, 282 flow [2024-11-20 14:03:14,603 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) [2024-11-20 14:03:14,603 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:14,604 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] [2024-11-20 14:03:14,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-20 14:03:14,604 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)] === [2024-11-20 14:03:14,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:14,604 INFO L85 PathProgramCache]: Analyzing trace with hash -751325389, now seen corresponding path program 1 times [2024-11-20 14:03:14,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:14,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120851036] [2024-11-20 14:03:14,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:14,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:14,748 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2024-11-20 14:03:14,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:14,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120851036] [2024-11-20 14:03:14,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120851036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:14,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:14,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:14,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023804534] [2024-11-20 14:03:14,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:14,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:14,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:14,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:14,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:14,807 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 405 [2024-11-20 14:03:14,809 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) [2024-11-20 14:03:14,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:14,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 405 [2024-11-20 14:03:14,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:14,865 INFO L124 PetriNetUnfolderBase]: 0/238 cut-off events. [2024-11-20 14:03:14,865 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2024-11-20 14:03:14,865 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. [2024-11-20 14:03:14,866 INFO L140 encePairwiseOnDemand]: 400/405 looper letters, 17 selfloop transitions, 2 changer transitions 3/116 dead transitions. [2024-11-20 14:03:14,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 116 transitions, 330 flow [2024-11-20 14:03:14,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:14,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:14,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1703 transitions. [2024-11-20 14:03:14,869 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8409876543209877 [2024-11-20 14:03:14,869 INFO L175 Difference]: Start difference. First operand has 159 places, 114 transitions, 282 flow. Second operand 5 states and 1703 transitions. [2024-11-20 14:03:14,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 116 transitions, 330 flow [2024-11-20 14:03:14,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 116 transitions, 329 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:14,872 INFO L231 Difference]: Finished difference. Result has 139 places, 113 transitions, 287 flow [2024-11-20 14:03:14,872 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} [2024-11-20 14:03:14,873 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, -26 predicate places. [2024-11-20 14:03:14,873 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 113 transitions, 287 flow [2024-11-20 14:03:14,874 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) [2024-11-20 14:03:14,874 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:14,874 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] [2024-11-20 14:03:14,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-20 14:03:14,874 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)] === [2024-11-20 14:03:14,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:14,875 INFO L85 PathProgramCache]: Analyzing trace with hash -139926656, now seen corresponding path program 1 times [2024-11-20 14:03:14,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:14,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400652263] [2024-11-20 14:03:14,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:14,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:14,897 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:14,939 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:14,940 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:14,940 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-11-20 14:03:14,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2024-11-20 14:03:14,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2024-11-20 14:03:14,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2024-11-20 14:03:14,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2024-11-20 14:03:14,941 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2024-11-20 14:03:14,941 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 17 remaining) [2024-11-20 14:03:14,941 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2024-11-20 14:03:14,941 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2024-11-20 14:03:14,941 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2024-11-20 14:03:14,941 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2024-11-20 14:03:14,941 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2024-11-20 14:03:14,941 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2024-11-20 14:03:14,942 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2024-11-20 14:03:14,942 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2024-11-20 14:03:14,942 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2024-11-20 14:03:14,942 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2024-11-20 14:03:14,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-20 14:03:14,942 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:14,943 WARN L244 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:14,943 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2024-11-20 14:03:15,016 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:15,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 441 places, 442 transitions, 1144 flow [2024-11-20 14:03:15,118 INFO L124 PetriNetUnfolderBase]: 57/735 cut-off events. [2024-11-20 14:03:15,119 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2024-11-20 14:03:15,122 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. [2024-11-20 14:03:15,122 INFO L82 GeneralOperation]: Start removeDead. Operand has 441 places, 442 transitions, 1144 flow [2024-11-20 14:03:15,125 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 155 transitions, 443 flow [2024-11-20 14:03:15,126 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:15,127 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:15,127 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-20 14:03:15,128 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:15,128 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:15,129 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:15,129 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:15,129 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:15,129 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)] === [2024-11-20 14:03:15,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:15,129 INFO L85 PathProgramCache]: Analyzing trace with hash -516950525, now seen corresponding path program 1 times [2024-11-20 14:03:15,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:15,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947381334] [2024-11-20 14:03:15,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:15,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:15,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:15,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:15,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947381334] [2024-11-20 14:03:15,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947381334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:15,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:15,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:15,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867989329] [2024-11-20 14:03:15,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:15,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:15,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:15,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:15,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:15,216 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 359 out of 442 [2024-11-20 14:03:15,217 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) [2024-11-20 14:03:15,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:15,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 442 [2024-11-20 14:03:15,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:15,293 INFO L124 PetriNetUnfolderBase]: 23/568 cut-off events. [2024-11-20 14:03:15,294 INFO L125 PetriNetUnfolderBase]: For 276/276 co-relation queries the response was YES. [2024-11-20 14:03:15,296 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. [2024-11-20 14:03:15,298 INFO L140 encePairwiseOnDemand]: 436/442 looper letters, 20 selfloop transitions, 2 changer transitions 1/151 dead transitions. [2024-11-20 14:03:15,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 151 transitions, 479 flow [2024-11-20 14:03:15,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:15,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:15,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1103 transitions. [2024-11-20 14:03:15,302 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8318250377073907 [2024-11-20 14:03:15,302 INFO L175 Difference]: Start difference. First operand has 174 places, 155 transitions, 443 flow. Second operand 3 states and 1103 transitions. [2024-11-20 14:03:15,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 151 transitions, 479 flow [2024-11-20 14:03:15,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 151 transitions, 406 flow, removed 36 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:15,306 INFO L231 Difference]: Finished difference. Result has 174 places, 150 transitions, 364 flow [2024-11-20 14:03:15,306 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} [2024-11-20 14:03:15,307 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, 0 predicate places. [2024-11-20 14:03:15,307 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 150 transitions, 364 flow [2024-11-20 14:03:15,308 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) [2024-11-20 14:03:15,308 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:15,308 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] [2024-11-20 14:03:15,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-20 14:03:15,308 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)] === [2024-11-20 14:03:15,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:15,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1103457926, now seen corresponding path program 1 times [2024-11-20 14:03:15,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:15,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942108541] [2024-11-20 14:03:15,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:15,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:15,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:15,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:15,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942108541] [2024-11-20 14:03:15,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942108541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:15,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:15,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:15,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023078384] [2024-11-20 14:03:15,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:15,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:15,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:15,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:15,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:15,399 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 442 [2024-11-20 14:03:15,400 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) [2024-11-20 14:03:15,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:15,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 442 [2024-11-20 14:03:15,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:15,467 INFO L124 PetriNetUnfolderBase]: 12/509 cut-off events. [2024-11-20 14:03:15,468 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-20 14:03:15,469 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. [2024-11-20 14:03:15,470 INFO L140 encePairwiseOnDemand]: 436/442 looper letters, 18 selfloop transitions, 1 changer transitions 24/145 dead transitions. [2024-11-20 14:03:15,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 145 transitions, 396 flow [2024-11-20 14:03:15,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:15,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:15,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1037 transitions. [2024-11-20 14:03:15,472 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.782051282051282 [2024-11-20 14:03:15,472 INFO L175 Difference]: Start difference. First operand has 174 places, 150 transitions, 364 flow. Second operand 3 states and 1037 transitions. [2024-11-20 14:03:15,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 145 transitions, 396 flow [2024-11-20 14:03:15,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 145 transitions, 392 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:15,475 INFO L231 Difference]: Finished difference. Result has 168 places, 121 transitions, 302 flow [2024-11-20 14:03:15,475 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} [2024-11-20 14:03:15,477 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -6 predicate places. [2024-11-20 14:03:15,477 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 121 transitions, 302 flow [2024-11-20 14:03:15,477 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) [2024-11-20 14:03:15,478 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:15,478 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] [2024-11-20 14:03:15,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-20 14:03:15,478 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)] === [2024-11-20 14:03:15,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:15,478 INFO L85 PathProgramCache]: Analyzing trace with hash 195795815, now seen corresponding path program 1 times [2024-11-20 14:03:15,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:15,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432382550] [2024-11-20 14:03:15,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:15,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:15,589 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2024-11-20 14:03:15,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:15,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432382550] [2024-11-20 14:03:15,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432382550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:15,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:15,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:15,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191680982] [2024-11-20 14:03:15,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:15,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:15,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:15,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:15,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:15,660 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 442 [2024-11-20 14:03:15,662 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) [2024-11-20 14:03:15,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:15,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 442 [2024-11-20 14:03:15,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:15,712 INFO L124 PetriNetUnfolderBase]: 0/258 cut-off events. [2024-11-20 14:03:15,712 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2024-11-20 14:03:15,712 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. [2024-11-20 14:03:15,713 INFO L140 encePairwiseOnDemand]: 437/442 looper letters, 18 selfloop transitions, 2 changer transitions 3/123 dead transitions. [2024-11-20 14:03:15,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 123 transitions, 352 flow [2024-11-20 14:03:15,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:15,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:15,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1859 transitions. [2024-11-20 14:03:15,715 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8411764705882353 [2024-11-20 14:03:15,715 INFO L175 Difference]: Start difference. First operand has 168 places, 121 transitions, 302 flow. Second operand 5 states and 1859 transitions. [2024-11-20 14:03:15,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 123 transitions, 352 flow [2024-11-20 14:03:15,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 123 transitions, 351 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:15,718 INFO L231 Difference]: Finished difference. Result has 148 places, 120 transitions, 307 flow [2024-11-20 14:03:15,718 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} [2024-11-20 14:03:15,718 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -26 predicate places. [2024-11-20 14:03:15,718 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 120 transitions, 307 flow [2024-11-20 14:03:15,719 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) [2024-11-20 14:03:15,720 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:15,720 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] [2024-11-20 14:03:15,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-20 14:03:15,720 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)] === [2024-11-20 14:03:15,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:15,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1210927802, now seen corresponding path program 1 times [2024-11-20 14:03:15,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:15,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622402027] [2024-11-20 14:03:15,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:15,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:15,742 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:15,771 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:15,772 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:15,773 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-20 14:03:15,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-20 14:03:15,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-20 14:03:15,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-20 14:03:15,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-20 14:03:15,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-20 14:03:15,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 18 remaining) [2024-11-20 14:03:15,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-20 14:03:15,773 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-20 14:03:15,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-20 14:03:15,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-20 14:03:15,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-20 14:03:15,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-20 14:03:15,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-20 14:03:15,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-20 14:03:15,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-20 14:03:15,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-20 14:03:15,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-20 14:03:15,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-20 14:03:15,774 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:15,775 WARN L244 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:15,775 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2024-11-20 14:03:15,849 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:15,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 478 places, 479 transitions, 1266 flow [2024-11-20 14:03:15,953 INFO L124 PetriNetUnfolderBase]: 62/799 cut-off events. [2024-11-20 14:03:15,953 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2024-11-20 14:03:15,956 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. [2024-11-20 14:03:15,956 INFO L82 GeneralOperation]: Start removeDead. Operand has 478 places, 479 transitions, 1266 flow [2024-11-20 14:03:15,958 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 183 places, 162 transitions, 481 flow [2024-11-20 14:03:15,959 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:15,959 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:15,959 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-20 14:03:15,960 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:15,960 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:15,960 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:15,961 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:15,961 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:15,961 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)] === [2024-11-20 14:03:15,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:15,961 INFO L85 PathProgramCache]: Analyzing trace with hash 475051267, now seen corresponding path program 1 times [2024-11-20 14:03:15,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:15,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413873782] [2024-11-20 14:03:15,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:15,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:15,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:15,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:15,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:15,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413873782] [2024-11-20 14:03:15,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413873782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:15,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:15,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:15,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900608629] [2024-11-20 14:03:15,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:15,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:15,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:15,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:15,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:16,035 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 479 [2024-11-20 14:03:16,037 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) [2024-11-20 14:03:16,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:16,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 479 [2024-11-20 14:03:16,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:16,125 INFO L124 PetriNetUnfolderBase]: 25/617 cut-off events. [2024-11-20 14:03:16,125 INFO L125 PetriNetUnfolderBase]: For 353/353 co-relation queries the response was YES. [2024-11-20 14:03:16,127 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. [2024-11-20 14:03:16,129 INFO L140 encePairwiseOnDemand]: 473/479 looper letters, 21 selfloop transitions, 2 changer transitions 1/158 dead transitions. [2024-11-20 14:03:16,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 158 transitions, 519 flow [2024-11-20 14:03:16,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:16,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:16,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1194 transitions. [2024-11-20 14:03:16,131 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8308977035490606 [2024-11-20 14:03:16,131 INFO L175 Difference]: Start difference. First operand has 183 places, 162 transitions, 481 flow. Second operand 3 states and 1194 transitions. [2024-11-20 14:03:16,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 158 transitions, 519 flow [2024-11-20 14:03:16,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 158 transitions, 428 flow, removed 45 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:16,135 INFO L231 Difference]: Finished difference. Result has 183 places, 157 transitions, 384 flow [2024-11-20 14:03:16,135 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} [2024-11-20 14:03:16,135 INFO L277 CegarLoopForPetriNet]: 183 programPoint places, 0 predicate places. [2024-11-20 14:03:16,136 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 157 transitions, 384 flow [2024-11-20 14:03:16,136 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) [2024-11-20 14:03:16,136 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:16,136 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] [2024-11-20 14:03:16,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-20 14:03:16,137 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)] === [2024-11-20 14:03:16,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:16,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1901047110, now seen corresponding path program 1 times [2024-11-20 14:03:16,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:16,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173735722] [2024-11-20 14:03:16,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:16,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:16,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:16,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:16,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173735722] [2024-11-20 14:03:16,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173735722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:16,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:16,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:16,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598972669] [2024-11-20 14:03:16,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:16,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:16,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:16,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:16,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:16,202 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 479 [2024-11-20 14:03:16,203 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) [2024-11-20 14:03:16,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:16,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 479 [2024-11-20 14:03:16,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:16,282 INFO L124 PetriNetUnfolderBase]: 13/553 cut-off events. [2024-11-20 14:03:16,282 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2024-11-20 14:03:16,285 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. [2024-11-20 14:03:16,286 INFO L140 encePairwiseOnDemand]: 473/479 looper letters, 19 selfloop transitions, 1 changer transitions 24/152 dead transitions. [2024-11-20 14:03:16,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 152 transitions, 418 flow [2024-11-20 14:03:16,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:16,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:16,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1122 transitions. [2024-11-20 14:03:16,288 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7807933194154488 [2024-11-20 14:03:16,288 INFO L175 Difference]: Start difference. First operand has 183 places, 157 transitions, 384 flow. Second operand 3 states and 1122 transitions. [2024-11-20 14:03:16,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 152 transitions, 418 flow [2024-11-20 14:03:16,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 152 transitions, 414 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:16,291 INFO L231 Difference]: Finished difference. Result has 177 places, 128 transitions, 322 flow [2024-11-20 14:03:16,291 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} [2024-11-20 14:03:16,291 INFO L277 CegarLoopForPetriNet]: 183 programPoint places, -6 predicate places. [2024-11-20 14:03:16,292 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 128 transitions, 322 flow [2024-11-20 14:03:16,292 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) [2024-11-20 14:03:16,292 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:16,293 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] [2024-11-20 14:03:16,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-20 14:03:16,293 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)] === [2024-11-20 14:03:16,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:16,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1343247129, now seen corresponding path program 1 times [2024-11-20 14:03:16,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:16,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105184765] [2024-11-20 14:03:16,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:16,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:16,442 INFO L134 CoverageAnalysis]: Checked inductivity of 858 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 825 trivial. 0 not checked. [2024-11-20 14:03:16,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:16,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105184765] [2024-11-20 14:03:16,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105184765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:16,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:16,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:16,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515145728] [2024-11-20 14:03:16,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:16,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:16,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:16,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:16,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:16,521 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 479 [2024-11-20 14:03:16,524 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) [2024-11-20 14:03:16,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:16,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 479 [2024-11-20 14:03:16,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:16,593 INFO L124 PetriNetUnfolderBase]: 0/278 cut-off events. [2024-11-20 14:03:16,593 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2024-11-20 14:03:16,593 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. [2024-11-20 14:03:16,594 INFO L140 encePairwiseOnDemand]: 474/479 looper letters, 19 selfloop transitions, 2 changer transitions 3/130 dead transitions. [2024-11-20 14:03:16,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 130 transitions, 374 flow [2024-11-20 14:03:16,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:16,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:16,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2015 transitions. [2024-11-20 14:03:16,598 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8413361169102297 [2024-11-20 14:03:16,598 INFO L175 Difference]: Start difference. First operand has 177 places, 128 transitions, 322 flow. Second operand 5 states and 2015 transitions. [2024-11-20 14:03:16,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 130 transitions, 374 flow [2024-11-20 14:03:16,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 130 transitions, 373 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:16,601 INFO L231 Difference]: Finished difference. Result has 157 places, 127 transitions, 327 flow [2024-11-20 14:03:16,602 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} [2024-11-20 14:03:16,602 INFO L277 CegarLoopForPetriNet]: 183 programPoint places, -26 predicate places. [2024-11-20 14:03:16,602 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 127 transitions, 327 flow [2024-11-20 14:03:16,603 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) [2024-11-20 14:03:16,603 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:16,603 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] [2024-11-20 14:03:16,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-20 14:03:16,604 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)] === [2024-11-20 14:03:16,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:16,604 INFO L85 PathProgramCache]: Analyzing trace with hash -38338405, now seen corresponding path program 1 times [2024-11-20 14:03:16,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:16,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462748513] [2024-11-20 14:03:16,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:16,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:16,636 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:16,674 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:16,675 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:16,675 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2024-11-20 14:03:16,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2024-11-20 14:03:16,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2024-11-20 14:03:16,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2024-11-20 14:03:16,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2024-11-20 14:03:16,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2024-11-20 14:03:16,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 19 remaining) [2024-11-20 14:03:16,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2024-11-20 14:03:16,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2024-11-20 14:03:16,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2024-11-20 14:03:16,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2024-11-20 14:03:16,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 19 remaining) [2024-11-20 14:03:16,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2024-11-20 14:03:16,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2024-11-20 14:03:16,677 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2024-11-20 14:03:16,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2024-11-20 14:03:16,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2024-11-20 14:03:16,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2024-11-20 14:03:16,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2024-11-20 14:03:16,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-20 14:03:16,678 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:16,679 WARN L244 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:16,679 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2024-11-20 14:03:16,763 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:16,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 515 places, 516 transitions, 1392 flow [2024-11-20 14:03:16,863 INFO L124 PetriNetUnfolderBase]: 67/863 cut-off events. [2024-11-20 14:03:16,864 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2024-11-20 14:03:16,868 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. [2024-11-20 14:03:16,868 INFO L82 GeneralOperation]: Start removeDead. Operand has 515 places, 516 transitions, 1392 flow [2024-11-20 14:03:16,871 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 192 places, 169 transitions, 521 flow [2024-11-20 14:03:16,871 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:16,872 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:16,872 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-20 14:03:16,873 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:16,873 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:16,873 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:16,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:16,873 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:16,874 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)] === [2024-11-20 14:03:16,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:16,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1418148099, now seen corresponding path program 1 times [2024-11-20 14:03:16,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:16,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6496479] [2024-11-20 14:03:16,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:16,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:16,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:16,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:16,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6496479] [2024-11-20 14:03:16,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6496479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:16,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:16,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:16,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095629412] [2024-11-20 14:03:16,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:16,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:16,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:16,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:16,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:16,966 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 419 out of 516 [2024-11-20 14:03:16,967 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) [2024-11-20 14:03:16,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:16,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 419 of 516 [2024-11-20 14:03:16,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:17,069 INFO L124 PetriNetUnfolderBase]: 27/666 cut-off events. [2024-11-20 14:03:17,070 INFO L125 PetriNetUnfolderBase]: For 443/443 co-relation queries the response was YES. [2024-11-20 14:03:17,073 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. [2024-11-20 14:03:17,075 INFO L140 encePairwiseOnDemand]: 510/516 looper letters, 22 selfloop transitions, 2 changer transitions 1/165 dead transitions. [2024-11-20 14:03:17,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 165 transitions, 561 flow [2024-11-20 14:03:17,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:17,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:17,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1285 transitions. [2024-11-20 14:03:17,077 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8301033591731266 [2024-11-20 14:03:17,077 INFO L175 Difference]: Start difference. First operand has 192 places, 169 transitions, 521 flow. Second operand 3 states and 1285 transitions. [2024-11-20 14:03:17,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 165 transitions, 561 flow [2024-11-20 14:03:17,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 165 transitions, 450 flow, removed 55 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:17,081 INFO L231 Difference]: Finished difference. Result has 192 places, 164 transitions, 404 flow [2024-11-20 14:03:17,081 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} [2024-11-20 14:03:17,081 INFO L277 CegarLoopForPetriNet]: 192 programPoint places, 0 predicate places. [2024-11-20 14:03:17,082 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 164 transitions, 404 flow [2024-11-20 14:03:17,082 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) [2024-11-20 14:03:17,082 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:17,083 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] [2024-11-20 14:03:17,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-20 14:03:17,086 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)] === [2024-11-20 14:03:17,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:17,086 INFO L85 PathProgramCache]: Analyzing trace with hash -476671418, now seen corresponding path program 1 times [2024-11-20 14:03:17,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:17,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125717301] [2024-11-20 14:03:17,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:17,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:17,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:17,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:17,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125717301] [2024-11-20 14:03:17,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125717301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:17,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:17,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:17,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004115782] [2024-11-20 14:03:17,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:17,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:17,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:17,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:17,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:17,176 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 516 [2024-11-20 14:03:17,179 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) [2024-11-20 14:03:17,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:17,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 516 [2024-11-20 14:03:17,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:17,272 INFO L124 PetriNetUnfolderBase]: 14/597 cut-off events. [2024-11-20 14:03:17,272 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-11-20 14:03:17,275 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. [2024-11-20 14:03:17,276 INFO L140 encePairwiseOnDemand]: 510/516 looper letters, 20 selfloop transitions, 1 changer transitions 24/159 dead transitions. [2024-11-20 14:03:17,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 159 transitions, 440 flow [2024-11-20 14:03:17,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:17,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:17,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1207 transitions. [2024-11-20 14:03:17,278 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7797157622739018 [2024-11-20 14:03:17,278 INFO L175 Difference]: Start difference. First operand has 192 places, 164 transitions, 404 flow. Second operand 3 states and 1207 transitions. [2024-11-20 14:03:17,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 159 transitions, 440 flow [2024-11-20 14:03:17,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 159 transitions, 436 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:17,281 INFO L231 Difference]: Finished difference. Result has 186 places, 135 transitions, 342 flow [2024-11-20 14:03:17,281 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} [2024-11-20 14:03:17,282 INFO L277 CegarLoopForPetriNet]: 192 programPoint places, -6 predicate places. [2024-11-20 14:03:17,282 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 135 transitions, 342 flow [2024-11-20 14:03:17,283 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) [2024-11-20 14:03:17,283 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:17,283 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] [2024-11-20 14:03:17,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-20 14:03:17,284 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)] === [2024-11-20 14:03:17,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:17,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1770390803, now seen corresponding path program 1 times [2024-11-20 14:03:17,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:17,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901418532] [2024-11-20 14:03:17,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:17,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:17,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 984 trivial. 0 not checked. [2024-11-20 14:03:17,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:17,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901418532] [2024-11-20 14:03:17,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901418532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:17,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:17,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:17,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191740265] [2024-11-20 14:03:17,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:17,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:17,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:17,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:17,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:17,472 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 516 [2024-11-20 14:03:17,474 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) [2024-11-20 14:03:17,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:17,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 516 [2024-11-20 14:03:17,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:17,530 INFO L124 PetriNetUnfolderBase]: 0/298 cut-off events. [2024-11-20 14:03:17,531 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2024-11-20 14:03:17,531 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. [2024-11-20 14:03:17,531 INFO L140 encePairwiseOnDemand]: 511/516 looper letters, 20 selfloop transitions, 2 changer transitions 3/137 dead transitions. [2024-11-20 14:03:17,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 137 transitions, 396 flow [2024-11-20 14:03:17,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:17,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:17,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2171 transitions. [2024-11-20 14:03:17,536 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8414728682170542 [2024-11-20 14:03:17,536 INFO L175 Difference]: Start difference. First operand has 186 places, 135 transitions, 342 flow. Second operand 5 states and 2171 transitions. [2024-11-20 14:03:17,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 137 transitions, 396 flow [2024-11-20 14:03:17,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 137 transitions, 395 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:17,539 INFO L231 Difference]: Finished difference. Result has 166 places, 134 transitions, 347 flow [2024-11-20 14:03:17,539 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} [2024-11-20 14:03:17,540 INFO L277 CegarLoopForPetriNet]: 192 programPoint places, -26 predicate places. [2024-11-20 14:03:17,540 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 134 transitions, 347 flow [2024-11-20 14:03:17,540 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) [2024-11-20 14:03:17,541 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:17,541 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] [2024-11-20 14:03:17,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-20 14:03:17,541 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)] === [2024-11-20 14:03:17,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:17,542 INFO L85 PathProgramCache]: Analyzing trace with hash -330165053, now seen corresponding path program 1 times [2024-11-20 14:03:17,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:17,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951799693] [2024-11-20 14:03:17,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:17,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:17,570 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:17,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:17,610 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:17,610 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:17,611 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-20 14:03:17,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-20 14:03:17,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-20 14:03:17,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-20 14:03:17,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-20 14:03:17,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-20 14:03:17,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 20 remaining) [2024-11-20 14:03:17,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-20 14:03:17,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-20 14:03:17,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-20 14:03:17,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-20 14:03:17,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-20 14:03:17,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-20 14:03:17,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-20 14:03:17,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-20 14:03:17,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-20 14:03:17,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-20 14:03:17,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-20 14:03:17,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-20 14:03:17,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-20 14:03:17,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-20 14:03:17,613 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:17,613 WARN L244 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:17,613 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2024-11-20 14:03:17,688 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:17,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 552 places, 553 transitions, 1522 flow [2024-11-20 14:03:17,829 INFO L124 PetriNetUnfolderBase]: 72/927 cut-off events. [2024-11-20 14:03:17,829 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2024-11-20 14:03:17,832 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. [2024-11-20 14:03:17,832 INFO L82 GeneralOperation]: Start removeDead. Operand has 552 places, 553 transitions, 1522 flow [2024-11-20 14:03:17,835 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 201 places, 176 transitions, 563 flow [2024-11-20 14:03:17,835 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:17,836 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:17,836 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-20 14:03:17,837 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:17,837 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:17,837 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:17,837 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:17,837 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:17,838 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)] === [2024-11-20 14:03:17,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:17,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1982627325, now seen corresponding path program 1 times [2024-11-20 14:03:17,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:17,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281845295] [2024-11-20 14:03:17,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:17,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:17,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:17,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:17,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281845295] [2024-11-20 14:03:17,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281845295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:17,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:17,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:17,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964805761] [2024-11-20 14:03:17,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:17,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:17,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:17,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:17,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:17,931 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 553 [2024-11-20 14:03:17,933 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) [2024-11-20 14:03:17,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:17,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 553 [2024-11-20 14:03:17,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:18,045 INFO L124 PetriNetUnfolderBase]: 29/715 cut-off events. [2024-11-20 14:03:18,045 INFO L125 PetriNetUnfolderBase]: For 547/547 co-relation queries the response was YES. [2024-11-20 14:03:18,049 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. [2024-11-20 14:03:18,052 INFO L140 encePairwiseOnDemand]: 547/553 looper letters, 23 selfloop transitions, 2 changer transitions 1/172 dead transitions. [2024-11-20 14:03:18,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 172 transitions, 605 flow [2024-11-20 14:03:18,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:18,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:18,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1376 transitions. [2024-11-20 14:03:18,054 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8294153104279687 [2024-11-20 14:03:18,054 INFO L175 Difference]: Start difference. First operand has 201 places, 176 transitions, 563 flow. Second operand 3 states and 1376 transitions. [2024-11-20 14:03:18,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 172 transitions, 605 flow [2024-11-20 14:03:18,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 172 transitions, 472 flow, removed 66 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:18,058 INFO L231 Difference]: Finished difference. Result has 201 places, 171 transitions, 424 flow [2024-11-20 14:03:18,058 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} [2024-11-20 14:03:18,059 INFO L277 CegarLoopForPetriNet]: 201 programPoint places, 0 predicate places. [2024-11-20 14:03:18,059 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 171 transitions, 424 flow [2024-11-20 14:03:18,060 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) [2024-11-20 14:03:18,060 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:18,060 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:18,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-20 14:03:18,060 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)] === [2024-11-20 14:03:18,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:18,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1734730362, now seen corresponding path program 1 times [2024-11-20 14:03:18,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:18,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023161473] [2024-11-20 14:03:18,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:18,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:18,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:18,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:18,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:18,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023161473] [2024-11-20 14:03:18,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023161473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:18,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:18,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:18,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241790168] [2024-11-20 14:03:18,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:18,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:18,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:18,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:18,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:18,135 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 421 out of 553 [2024-11-20 14:03:18,136 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) [2024-11-20 14:03:18,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:18,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 421 of 553 [2024-11-20 14:03:18,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:18,231 INFO L124 PetriNetUnfolderBase]: 15/641 cut-off events. [2024-11-20 14:03:18,231 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2024-11-20 14:03:18,234 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. [2024-11-20 14:03:18,235 INFO L140 encePairwiseOnDemand]: 547/553 looper letters, 21 selfloop transitions, 1 changer transitions 24/166 dead transitions. [2024-11-20 14:03:18,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 166 transitions, 462 flow [2024-11-20 14:03:18,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:18,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:18,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1292 transitions. [2024-11-20 14:03:18,237 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7787823990355636 [2024-11-20 14:03:18,237 INFO L175 Difference]: Start difference. First operand has 201 places, 171 transitions, 424 flow. Second operand 3 states and 1292 transitions. [2024-11-20 14:03:18,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 166 transitions, 462 flow [2024-11-20 14:03:18,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 166 transitions, 458 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:18,240 INFO L231 Difference]: Finished difference. Result has 195 places, 142 transitions, 362 flow [2024-11-20 14:03:18,240 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} [2024-11-20 14:03:18,240 INFO L277 CegarLoopForPetriNet]: 201 programPoint places, -6 predicate places. [2024-11-20 14:03:18,240 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 142 transitions, 362 flow [2024-11-20 14:03:18,241 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) [2024-11-20 14:03:18,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:18,241 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] [2024-11-20 14:03:18,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-20 14:03:18,241 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)] === [2024-11-20 14:03:18,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:18,241 INFO L85 PathProgramCache]: Analyzing trace with hash -925268661, now seen corresponding path program 1 times [2024-11-20 14:03:18,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:18,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666981143] [2024-11-20 14:03:18,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:18,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:18,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1196 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 1157 trivial. 0 not checked. [2024-11-20 14:03:18,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:18,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666981143] [2024-11-20 14:03:18,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666981143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:18,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:18,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:18,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132481755] [2024-11-20 14:03:18,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:18,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:18,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:18,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:18,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:18,433 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 553 [2024-11-20 14:03:18,435 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) [2024-11-20 14:03:18,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:18,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 553 [2024-11-20 14:03:18,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:18,531 INFO L124 PetriNetUnfolderBase]: 0/318 cut-off events. [2024-11-20 14:03:18,531 INFO L125 PetriNetUnfolderBase]: For 115/115 co-relation queries the response was YES. [2024-11-20 14:03:18,531 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. [2024-11-20 14:03:18,532 INFO L140 encePairwiseOnDemand]: 548/553 looper letters, 21 selfloop transitions, 2 changer transitions 3/144 dead transitions. [2024-11-20 14:03:18,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 144 transitions, 418 flow [2024-11-20 14:03:18,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:18,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:18,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2327 transitions. [2024-11-20 14:03:18,534 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8415913200723327 [2024-11-20 14:03:18,534 INFO L175 Difference]: Start difference. First operand has 195 places, 142 transitions, 362 flow. Second operand 5 states and 2327 transitions. [2024-11-20 14:03:18,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 144 transitions, 418 flow [2024-11-20 14:03:18,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 144 transitions, 417 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:18,537 INFO L231 Difference]: Finished difference. Result has 175 places, 141 transitions, 367 flow [2024-11-20 14:03:18,537 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} [2024-11-20 14:03:18,537 INFO L277 CegarLoopForPetriNet]: 201 programPoint places, -26 predicate places. [2024-11-20 14:03:18,537 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 141 transitions, 367 flow [2024-11-20 14:03:18,538 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) [2024-11-20 14:03:18,538 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:18,538 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] [2024-11-20 14:03:18,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-20 14:03:18,538 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)] === [2024-11-20 14:03:18,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:18,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1324910894, now seen corresponding path program 1 times [2024-11-20 14:03:18,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:18,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015885140] [2024-11-20 14:03:18,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:18,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:18,566 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:18,605 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:18,605 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:18,605 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-20 14:03:18,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2024-11-20 14:03:18,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2024-11-20 14:03:18,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2024-11-20 14:03:18,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2024-11-20 14:03:18,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2024-11-20 14:03:18,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 21 remaining) [2024-11-20 14:03:18,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2024-11-20 14:03:18,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2024-11-20 14:03:18,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining) [2024-11-20 14:03:18,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2024-11-20 14:03:18,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2024-11-20 14:03:18,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2024-11-20 14:03:18,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2024-11-20 14:03:18,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2024-11-20 14:03:18,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2024-11-20 14:03:18,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2024-11-20 14:03:18,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2024-11-20 14:03:18,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2024-11-20 14:03:18,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2024-11-20 14:03:18,608 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2024-11-20 14:03:18,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-20 14:03:18,608 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:18,608 WARN L244 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:18,608 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2024-11-20 14:03:18,694 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:18,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 589 places, 590 transitions, 1656 flow [2024-11-20 14:03:18,825 INFO L124 PetriNetUnfolderBase]: 77/991 cut-off events. [2024-11-20 14:03:18,825 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2024-11-20 14:03:18,831 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. [2024-11-20 14:03:18,832 INFO L82 GeneralOperation]: Start removeDead. Operand has 589 places, 590 transitions, 1656 flow [2024-11-20 14:03:18,838 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 183 transitions, 607 flow [2024-11-20 14:03:18,839 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:18,839 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:18,839 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-20 14:03:18,841 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:18,841 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:18,841 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:18,841 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:18,841 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:18,841 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)] === [2024-11-20 14:03:18,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:18,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1137340413, now seen corresponding path program 1 times [2024-11-20 14:03:18,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:18,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428674588] [2024-11-20 14:03:18,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:18,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:18,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:18,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:18,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428674588] [2024-11-20 14:03:18,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428674588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:18,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:18,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:18,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257769497] [2024-11-20 14:03:18,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:18,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:18,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:18,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:18,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:18,936 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 479 out of 590 [2024-11-20 14:03:18,938 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) [2024-11-20 14:03:18,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:18,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 479 of 590 [2024-11-20 14:03:18,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:19,068 INFO L124 PetriNetUnfolderBase]: 31/764 cut-off events. [2024-11-20 14:03:19,068 INFO L125 PetriNetUnfolderBase]: For 666/666 co-relation queries the response was YES. [2024-11-20 14:03:19,073 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. [2024-11-20 14:03:19,075 INFO L140 encePairwiseOnDemand]: 584/590 looper letters, 24 selfloop transitions, 2 changer transitions 1/179 dead transitions. [2024-11-20 14:03:19,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 179 transitions, 651 flow [2024-11-20 14:03:19,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:19,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:19,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1467 transitions. [2024-11-20 14:03:19,077 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8288135593220339 [2024-11-20 14:03:19,077 INFO L175 Difference]: Start difference. First operand has 210 places, 183 transitions, 607 flow. Second operand 3 states and 1467 transitions. [2024-11-20 14:03:19,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 179 transitions, 651 flow [2024-11-20 14:03:19,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 179 transitions, 494 flow, removed 78 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:19,082 INFO L231 Difference]: Finished difference. Result has 210 places, 178 transitions, 444 flow [2024-11-20 14:03:19,082 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} [2024-11-20 14:03:19,082 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, 0 predicate places. [2024-11-20 14:03:19,082 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 178 transitions, 444 flow [2024-11-20 14:03:19,083 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) [2024-11-20 14:03:19,083 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:19,083 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] [2024-11-20 14:03:19,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-20 14:03:19,083 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)] === [2024-11-20 14:03:19,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:19,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1873129722, now seen corresponding path program 1 times [2024-11-20 14:03:19,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:19,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812006407] [2024-11-20 14:03:19,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:19,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:19,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:19,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:19,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812006407] [2024-11-20 14:03:19,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812006407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:19,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:19,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:19,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761347396] [2024-11-20 14:03:19,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:19,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:19,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:19,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:19,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:19,188 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 590 [2024-11-20 14:03:19,191 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) [2024-11-20 14:03:19,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:19,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 590 [2024-11-20 14:03:19,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:19,348 INFO L124 PetriNetUnfolderBase]: 16/685 cut-off events. [2024-11-20 14:03:19,349 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2024-11-20 14:03:19,353 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. [2024-11-20 14:03:19,354 INFO L140 encePairwiseOnDemand]: 584/590 looper letters, 22 selfloop transitions, 1 changer transitions 24/173 dead transitions. [2024-11-20 14:03:19,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 173 transitions, 484 flow [2024-11-20 14:03:19,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:19,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:19,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1377 transitions. [2024-11-20 14:03:19,357 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7779661016949152 [2024-11-20 14:03:19,357 INFO L175 Difference]: Start difference. First operand has 210 places, 178 transitions, 444 flow. Second operand 3 states and 1377 transitions. [2024-11-20 14:03:19,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 173 transitions, 484 flow [2024-11-20 14:03:19,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 173 transitions, 480 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:19,360 INFO L231 Difference]: Finished difference. Result has 204 places, 149 transitions, 382 flow [2024-11-20 14:03:19,360 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} [2024-11-20 14:03:19,361 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -6 predicate places. [2024-11-20 14:03:19,361 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 149 transitions, 382 flow [2024-11-20 14:03:19,361 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) [2024-11-20 14:03:19,361 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:19,361 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] [2024-11-20 14:03:19,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-20 14:03:19,362 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)] === [2024-11-20 14:03:19,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:19,362 INFO L85 PathProgramCache]: Analyzing trace with hash 193056495, now seen corresponding path program 1 times [2024-11-20 14:03:19,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:19,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460517717] [2024-11-20 14:03:19,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:19,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:19,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1386 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 1344 trivial. 0 not checked. [2024-11-20 14:03:19,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:19,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460517717] [2024-11-20 14:03:19,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460517717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:19,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:19,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:19,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449045687] [2024-11-20 14:03:19,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:19,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:19,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:19,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:19,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:19,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 491 out of 590 [2024-11-20 14:03:19,604 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) [2024-11-20 14:03:19,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:19,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 491 of 590 [2024-11-20 14:03:19,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:19,702 INFO L124 PetriNetUnfolderBase]: 0/338 cut-off events. [2024-11-20 14:03:19,703 INFO L125 PetriNetUnfolderBase]: For 131/131 co-relation queries the response was YES. [2024-11-20 14:03:19,703 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. [2024-11-20 14:03:19,704 INFO L140 encePairwiseOnDemand]: 585/590 looper letters, 22 selfloop transitions, 2 changer transitions 3/151 dead transitions. [2024-11-20 14:03:19,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 151 transitions, 440 flow [2024-11-20 14:03:19,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:19,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:19,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2483 transitions. [2024-11-20 14:03:19,708 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8416949152542373 [2024-11-20 14:03:19,708 INFO L175 Difference]: Start difference. First operand has 204 places, 149 transitions, 382 flow. Second operand 5 states and 2483 transitions. [2024-11-20 14:03:19,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 151 transitions, 440 flow [2024-11-20 14:03:19,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 151 transitions, 439 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:19,710 INFO L231 Difference]: Finished difference. Result has 184 places, 148 transitions, 387 flow [2024-11-20 14:03:19,711 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} [2024-11-20 14:03:19,711 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -26 predicate places. [2024-11-20 14:03:19,711 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 148 transitions, 387 flow [2024-11-20 14:03:19,712 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) [2024-11-20 14:03:19,712 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:19,712 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] [2024-11-20 14:03:19,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-20 14:03:19,712 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)] === [2024-11-20 14:03:19,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:19,712 INFO L85 PathProgramCache]: Analyzing trace with hash 614004328, now seen corresponding path program 1 times [2024-11-20 14:03:19,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:19,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049369041] [2024-11-20 14:03:19,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:19,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:19,741 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:19,784 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:19,784 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:19,784 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2024-11-20 14:03:19,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2024-11-20 14:03:19,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2024-11-20 14:03:19,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2024-11-20 14:03:19,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2024-11-20 14:03:19,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2024-11-20 14:03:19,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 22 remaining) [2024-11-20 14:03:19,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2024-11-20 14:03:19,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2024-11-20 14:03:19,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2024-11-20 14:03:19,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2024-11-20 14:03:19,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2024-11-20 14:03:19,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2024-11-20 14:03:19,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2024-11-20 14:03:19,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2024-11-20 14:03:19,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2024-11-20 14:03:19,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2024-11-20 14:03:19,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2024-11-20 14:03:19,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2024-11-20 14:03:19,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2024-11-20 14:03:19,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2024-11-20 14:03:19,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2024-11-20 14:03:19,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-20 14:03:19,786 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:19,787 WARN L244 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:19,787 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2024-11-20 14:03:19,863 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:19,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 626 places, 627 transitions, 1794 flow [2024-11-20 14:03:19,994 INFO L124 PetriNetUnfolderBase]: 82/1055 cut-off events. [2024-11-20 14:03:19,995 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2024-11-20 14:03:20,001 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. [2024-11-20 14:03:20,002 INFO L82 GeneralOperation]: Start removeDead. Operand has 626 places, 627 transitions, 1794 flow [2024-11-20 14:03:20,004 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 219 places, 190 transitions, 653 flow [2024-11-20 14:03:20,004 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:20,005 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:20,005 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-20 14:03:20,006 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:20,006 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:20,006 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:20,006 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:20,006 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:20,006 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)] === [2024-11-20 14:03:20,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:20,006 INFO L85 PathProgramCache]: Analyzing trace with hash -340958461, now seen corresponding path program 1 times [2024-11-20 14:03:20,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:20,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054287426] [2024-11-20 14:03:20,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:20,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:20,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:20,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:20,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054287426] [2024-11-20 14:03:20,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054287426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:20,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:20,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:20,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564851587] [2024-11-20 14:03:20,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:20,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:20,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:20,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:20,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:20,108 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 509 out of 627 [2024-11-20 14:03:20,109 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) [2024-11-20 14:03:20,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:20,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 509 of 627 [2024-11-20 14:03:20,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:20,256 INFO L124 PetriNetUnfolderBase]: 33/813 cut-off events. [2024-11-20 14:03:20,256 INFO L125 PetriNetUnfolderBase]: For 801/801 co-relation queries the response was YES. [2024-11-20 14:03:20,260 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. [2024-11-20 14:03:20,262 INFO L140 encePairwiseOnDemand]: 621/627 looper letters, 25 selfloop transitions, 2 changer transitions 1/186 dead transitions. [2024-11-20 14:03:20,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 186 transitions, 699 flow [2024-11-20 14:03:20,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:20,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:20,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1558 transitions. [2024-11-20 14:03:20,267 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8282828282828283 [2024-11-20 14:03:20,267 INFO L175 Difference]: Start difference. First operand has 219 places, 190 transitions, 653 flow. Second operand 3 states and 1558 transitions. [2024-11-20 14:03:20,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 186 transitions, 699 flow [2024-11-20 14:03:20,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 186 transitions, 516 flow, removed 91 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:20,274 INFO L231 Difference]: Finished difference. Result has 219 places, 185 transitions, 464 flow [2024-11-20 14:03:20,274 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} [2024-11-20 14:03:20,275 INFO L277 CegarLoopForPetriNet]: 219 programPoint places, 0 predicate places. [2024-11-20 14:03:20,275 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 185 transitions, 464 flow [2024-11-20 14:03:20,275 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) [2024-11-20 14:03:20,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:20,276 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] [2024-11-20 14:03:20,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-20 14:03:20,276 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)] === [2024-11-20 14:03:20,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:20,276 INFO L85 PathProgramCache]: Analyzing trace with hash -891869498, now seen corresponding path program 1 times [2024-11-20 14:03:20,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:20,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269064242] [2024-11-20 14:03:20,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:20,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:20,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:20,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:20,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269064242] [2024-11-20 14:03:20,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269064242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:20,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:20,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:20,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612597144] [2024-11-20 14:03:20,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:20,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:20,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:20,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:20,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:20,347 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 627 [2024-11-20 14:03:20,348 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) [2024-11-20 14:03:20,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:20,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 627 [2024-11-20 14:03:20,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:20,467 INFO L124 PetriNetUnfolderBase]: 17/729 cut-off events. [2024-11-20 14:03:20,467 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2024-11-20 14:03:20,471 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. [2024-11-20 14:03:20,472 INFO L140 encePairwiseOnDemand]: 621/627 looper letters, 23 selfloop transitions, 1 changer transitions 24/180 dead transitions. [2024-11-20 14:03:20,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 180 transitions, 506 flow [2024-11-20 14:03:20,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:20,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:20,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1462 transitions. [2024-11-20 14:03:20,474 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7772461456671983 [2024-11-20 14:03:20,474 INFO L175 Difference]: Start difference. First operand has 219 places, 185 transitions, 464 flow. Second operand 3 states and 1462 transitions. [2024-11-20 14:03:20,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 180 transitions, 506 flow [2024-11-20 14:03:20,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 180 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:20,477 INFO L231 Difference]: Finished difference. Result has 213 places, 156 transitions, 402 flow [2024-11-20 14:03:20,478 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} [2024-11-20 14:03:20,478 INFO L277 CegarLoopForPetriNet]: 219 programPoint places, -6 predicate places. [2024-11-20 14:03:20,478 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 156 transitions, 402 flow [2024-11-20 14:03:20,479 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) [2024-11-20 14:03:20,479 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:20,479 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] [2024-11-20 14:03:20,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-20 14:03:20,479 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)] === [2024-11-20 14:03:20,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:20,480 INFO L85 PathProgramCache]: Analyzing trace with hash 587678559, now seen corresponding path program 1 times [2024-11-20 14:03:20,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:20,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202191004] [2024-11-20 14:03:20,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:20,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:20,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:20,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1590 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 1545 trivial. 0 not checked. [2024-11-20 14:03:20,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:20,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202191004] [2024-11-20 14:03:20,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202191004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:20,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:20,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:20,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193884090] [2024-11-20 14:03:20,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:20,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:20,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:20,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:20,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:20,660 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 522 out of 627 [2024-11-20 14:03:20,663 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) [2024-11-20 14:03:20,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:20,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 522 of 627 [2024-11-20 14:03:20,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:20,739 INFO L124 PetriNetUnfolderBase]: 0/358 cut-off events. [2024-11-20 14:03:20,740 INFO L125 PetriNetUnfolderBase]: For 148/148 co-relation queries the response was YES. [2024-11-20 14:03:20,740 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. [2024-11-20 14:03:20,740 INFO L140 encePairwiseOnDemand]: 622/627 looper letters, 23 selfloop transitions, 2 changer transitions 3/158 dead transitions. [2024-11-20 14:03:20,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 158 transitions, 462 flow [2024-11-20 14:03:20,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:20,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:20,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2639 transitions. [2024-11-20 14:03:20,744 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8417862838915471 [2024-11-20 14:03:20,744 INFO L175 Difference]: Start difference. First operand has 213 places, 156 transitions, 402 flow. Second operand 5 states and 2639 transitions. [2024-11-20 14:03:20,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 158 transitions, 462 flow [2024-11-20 14:03:20,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 158 transitions, 461 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:20,747 INFO L231 Difference]: Finished difference. Result has 193 places, 155 transitions, 407 flow [2024-11-20 14:03:20,747 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} [2024-11-20 14:03:20,748 INFO L277 CegarLoopForPetriNet]: 219 programPoint places, -26 predicate places. [2024-11-20 14:03:20,748 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 155 transitions, 407 flow [2024-11-20 14:03:20,749 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) [2024-11-20 14:03:20,749 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:20,749 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] [2024-11-20 14:03:20,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-20 14:03:20,749 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)] === [2024-11-20 14:03:20,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:20,750 INFO L85 PathProgramCache]: Analyzing trace with hash 62735141, now seen corresponding path program 1 times [2024-11-20 14:03:20,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:20,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233378052] [2024-11-20 14:03:20,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:20,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:20,780 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:20,828 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:20,828 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:20,828 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-20 14:03:20,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-20 14:03:20,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-20 14:03:20,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-20 14:03:20,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-20 14:03:20,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-20 14:03:20,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 23 remaining) [2024-11-20 14:03:20,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-20 14:03:20,828 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-20 14:03:20,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-20 14:03:20,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-20 14:03:20,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-20 14:03:20,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-20 14:03:20,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-20 14:03:20,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-20 14:03:20,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-20 14:03:20,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-20 14:03:20,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-20 14:03:20,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-20 14:03:20,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-20 14:03:20,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-20 14:03:20,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-20 14:03:20,829 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-20 14:03:20,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-11-20 14:03:20,830 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:20,830 WARN L244 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:20,830 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2024-11-20 14:03:20,910 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:20,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 663 places, 664 transitions, 1936 flow [2024-11-20 14:03:21,086 INFO L124 PetriNetUnfolderBase]: 87/1119 cut-off events. [2024-11-20 14:03:21,086 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2024-11-20 14:03:21,093 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. [2024-11-20 14:03:21,093 INFO L82 GeneralOperation]: Start removeDead. Operand has 663 places, 664 transitions, 1936 flow [2024-11-20 14:03:21,096 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 197 transitions, 701 flow [2024-11-20 14:03:21,096 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:21,096 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:21,097 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-20 14:03:21,098 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:21,098 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:21,098 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:21,098 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:21,098 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:21,098 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)] === [2024-11-20 14:03:21,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:21,099 INFO L85 PathProgramCache]: Analyzing trace with hash 406518531, now seen corresponding path program 1 times [2024-11-20 14:03:21,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:21,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837319916] [2024-11-20 14:03:21,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:21,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:21,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:21,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:21,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837319916] [2024-11-20 14:03:21,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837319916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:21,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:21,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:21,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277384200] [2024-11-20 14:03:21,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:21,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:21,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:21,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:21,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:21,209 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 539 out of 664 [2024-11-20 14:03:21,210 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) [2024-11-20 14:03:21,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:21,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 539 of 664 [2024-11-20 14:03:21,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:21,352 INFO L124 PetriNetUnfolderBase]: 35/862 cut-off events. [2024-11-20 14:03:21,352 INFO L125 PetriNetUnfolderBase]: For 953/953 co-relation queries the response was YES. [2024-11-20 14:03:21,357 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. [2024-11-20 14:03:21,359 INFO L140 encePairwiseOnDemand]: 658/664 looper letters, 26 selfloop transitions, 2 changer transitions 1/193 dead transitions. [2024-11-20 14:03:21,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 193 transitions, 749 flow [2024-11-20 14:03:21,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:21,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:21,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1649 transitions. [2024-11-20 14:03:21,362 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8278112449799196 [2024-11-20 14:03:21,362 INFO L175 Difference]: Start difference. First operand has 228 places, 197 transitions, 701 flow. Second operand 3 states and 1649 transitions. [2024-11-20 14:03:21,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 193 transitions, 749 flow [2024-11-20 14:03:21,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 193 transitions, 538 flow, removed 105 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:21,367 INFO L231 Difference]: Finished difference. Result has 228 places, 192 transitions, 484 flow [2024-11-20 14:03:21,367 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} [2024-11-20 14:03:21,367 INFO L277 CegarLoopForPetriNet]: 228 programPoint places, 0 predicate places. [2024-11-20 14:03:21,368 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 192 transitions, 484 flow [2024-11-20 14:03:21,368 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) [2024-11-20 14:03:21,368 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:21,368 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] [2024-11-20 14:03:21,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-11-20 14:03:21,369 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)] === [2024-11-20 14:03:21,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:21,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1209050310, now seen corresponding path program 1 times [2024-11-20 14:03:21,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:21,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517256976] [2024-11-20 14:03:21,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:21,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:21,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:21,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:21,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517256976] [2024-11-20 14:03:21,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517256976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:21,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:21,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:21,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618804705] [2024-11-20 14:03:21,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:21,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:21,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:21,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:21,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:21,451 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 505 out of 664 [2024-11-20 14:03:21,452 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) [2024-11-20 14:03:21,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:21,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 505 of 664 [2024-11-20 14:03:21,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:21,581 INFO L124 PetriNetUnfolderBase]: 18/773 cut-off events. [2024-11-20 14:03:21,582 INFO L125 PetriNetUnfolderBase]: For 167/167 co-relation queries the response was YES. [2024-11-20 14:03:21,586 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. [2024-11-20 14:03:21,587 INFO L140 encePairwiseOnDemand]: 658/664 looper letters, 24 selfloop transitions, 1 changer transitions 24/187 dead transitions. [2024-11-20 14:03:21,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 187 transitions, 528 flow [2024-11-20 14:03:21,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:21,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:21,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1547 transitions. [2024-11-20 14:03:21,590 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7766064257028112 [2024-11-20 14:03:21,590 INFO L175 Difference]: Start difference. First operand has 228 places, 192 transitions, 484 flow. Second operand 3 states and 1547 transitions. [2024-11-20 14:03:21,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 187 transitions, 528 flow [2024-11-20 14:03:21,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 187 transitions, 524 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:21,593 INFO L231 Difference]: Finished difference. Result has 222 places, 163 transitions, 422 flow [2024-11-20 14:03:21,593 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} [2024-11-20 14:03:21,593 INFO L277 CegarLoopForPetriNet]: 228 programPoint places, -6 predicate places. [2024-11-20 14:03:21,594 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 163 transitions, 422 flow [2024-11-20 14:03:21,594 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) [2024-11-20 14:03:21,594 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:21,594 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] [2024-11-20 14:03:21,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-11-20 14:03:21,594 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)] === [2024-11-20 14:03:21,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:21,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1675164677, now seen corresponding path program 1 times [2024-11-20 14:03:21,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:21,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829008667] [2024-11-20 14:03:21,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:21,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:21,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1808 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1760 trivial. 0 not checked. [2024-11-20 14:03:21,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:21,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829008667] [2024-11-20 14:03:21,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829008667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:21,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:21,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:21,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158669375] [2024-11-20 14:03:21,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:21,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:21,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:21,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:21,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:21,776 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 553 out of 664 [2024-11-20 14:03:21,778 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) [2024-11-20 14:03:21,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:21,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 553 of 664 [2024-11-20 14:03:21,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:21,876 INFO L124 PetriNetUnfolderBase]: 0/378 cut-off events. [2024-11-20 14:03:21,876 INFO L125 PetriNetUnfolderBase]: For 166/166 co-relation queries the response was YES. [2024-11-20 14:03:21,877 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. [2024-11-20 14:03:21,877 INFO L140 encePairwiseOnDemand]: 659/664 looper letters, 24 selfloop transitions, 2 changer transitions 3/165 dead transitions. [2024-11-20 14:03:21,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 165 transitions, 484 flow [2024-11-20 14:03:21,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:21,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:21,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2795 transitions. [2024-11-20 14:03:21,880 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8418674698795181 [2024-11-20 14:03:21,880 INFO L175 Difference]: Start difference. First operand has 222 places, 163 transitions, 422 flow. Second operand 5 states and 2795 transitions. [2024-11-20 14:03:21,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 165 transitions, 484 flow [2024-11-20 14:03:21,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 165 transitions, 483 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:21,883 INFO L231 Difference]: Finished difference. Result has 202 places, 162 transitions, 427 flow [2024-11-20 14:03:21,883 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} [2024-11-20 14:03:21,884 INFO L277 CegarLoopForPetriNet]: 228 programPoint places, -26 predicate places. [2024-11-20 14:03:21,884 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 162 transitions, 427 flow [2024-11-20 14:03:21,884 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) [2024-11-20 14:03:21,884 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:21,885 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] [2024-11-20 14:03:21,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-11-20 14:03:21,885 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)] === [2024-11-20 14:03:21,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:21,885 INFO L85 PathProgramCache]: Analyzing trace with hash 752610473, now seen corresponding path program 1 times [2024-11-20 14:03:21,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:21,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939154159] [2024-11-20 14:03:21,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:21,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:21,913 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:21,966 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:21,967 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:21,967 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2024-11-20 14:03:21,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2024-11-20 14:03:21,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2024-11-20 14:03:21,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2024-11-20 14:03:21,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2024-11-20 14:03:21,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2024-11-20 14:03:21,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 24 remaining) [2024-11-20 14:03:21,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2024-11-20 14:03:21,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2024-11-20 14:03:21,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2024-11-20 14:03:21,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2024-11-20 14:03:21,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2024-11-20 14:03:21,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2024-11-20 14:03:21,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2024-11-20 14:03:21,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2024-11-20 14:03:21,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2024-11-20 14:03:21,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2024-11-20 14:03:21,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2024-11-20 14:03:21,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2024-11-20 14:03:21,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2024-11-20 14:03:21,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2024-11-20 14:03:21,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2024-11-20 14:03:21,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2024-11-20 14:03:21,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2024-11-20 14:03:21,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-11-20 14:03:21,972 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:21,973 WARN L244 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:21,973 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2024-11-20 14:03:22,058 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:22,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 700 places, 701 transitions, 2082 flow [2024-11-20 14:03:22,225 INFO L124 PetriNetUnfolderBase]: 92/1183 cut-off events. [2024-11-20 14:03:22,225 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2024-11-20 14:03:22,235 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. [2024-11-20 14:03:22,236 INFO L82 GeneralOperation]: Start removeDead. Operand has 700 places, 701 transitions, 2082 flow [2024-11-20 14:03:22,239 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 237 places, 204 transitions, 751 flow [2024-11-20 14:03:22,239 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:22,240 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:22,240 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-20 14:03:22,241 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:22,241 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:22,241 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:22,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:22,241 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:22,241 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)] === [2024-11-20 14:03:22,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:22,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1105090563, now seen corresponding path program 1 times [2024-11-20 14:03:22,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:22,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360372842] [2024-11-20 14:03:22,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:22,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:22,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:22,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:22,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360372842] [2024-11-20 14:03:22,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360372842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:22,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:22,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:22,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179269988] [2024-11-20 14:03:22,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:22,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:22,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:22,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:22,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:22,341 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 569 out of 701 [2024-11-20 14:03:22,343 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) [2024-11-20 14:03:22,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:22,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 569 of 701 [2024-11-20 14:03:22,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:22,504 INFO L124 PetriNetUnfolderBase]: 37/911 cut-off events. [2024-11-20 14:03:22,504 INFO L125 PetriNetUnfolderBase]: For 1123/1123 co-relation queries the response was YES. [2024-11-20 14:03:22,510 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. [2024-11-20 14:03:22,512 INFO L140 encePairwiseOnDemand]: 695/701 looper letters, 27 selfloop transitions, 2 changer transitions 1/200 dead transitions. [2024-11-20 14:03:22,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 200 transitions, 801 flow [2024-11-20 14:03:22,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:22,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:22,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1740 transitions. [2024-11-20 14:03:22,515 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8273894436519258 [2024-11-20 14:03:22,515 INFO L175 Difference]: Start difference. First operand has 237 places, 204 transitions, 751 flow. Second operand 3 states and 1740 transitions. [2024-11-20 14:03:22,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 200 transitions, 801 flow [2024-11-20 14:03:22,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 200 transitions, 560 flow, removed 120 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:22,521 INFO L231 Difference]: Finished difference. Result has 237 places, 199 transitions, 504 flow [2024-11-20 14:03:22,522 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} [2024-11-20 14:03:22,522 INFO L277 CegarLoopForPetriNet]: 237 programPoint places, 0 predicate places. [2024-11-20 14:03:22,522 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 199 transitions, 504 flow [2024-11-20 14:03:22,523 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) [2024-11-20 14:03:22,523 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:22,523 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] [2024-11-20 14:03:22,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-11-20 14:03:22,523 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)] === [2024-11-20 14:03:22,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:22,523 INFO L85 PathProgramCache]: Analyzing trace with hash 134662406, now seen corresponding path program 1 times [2024-11-20 14:03:22,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:22,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469167707] [2024-11-20 14:03:22,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:22,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:22,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:22,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:22,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469167707] [2024-11-20 14:03:22,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469167707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:22,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:22,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:22,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286388870] [2024-11-20 14:03:22,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:22,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:22,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:22,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:22,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:22,612 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 533 out of 701 [2024-11-20 14:03:22,614 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) [2024-11-20 14:03:22,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:22,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 533 of 701 [2024-11-20 14:03:22,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:22,838 INFO L124 PetriNetUnfolderBase]: 19/817 cut-off events. [2024-11-20 14:03:22,838 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2024-11-20 14:03:22,844 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. [2024-11-20 14:03:22,844 INFO L140 encePairwiseOnDemand]: 695/701 looper letters, 25 selfloop transitions, 1 changer transitions 24/194 dead transitions. [2024-11-20 14:03:22,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 194 transitions, 550 flow [2024-11-20 14:03:22,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:22,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:22,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1632 transitions. [2024-11-20 14:03:22,847 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.776034236804565 [2024-11-20 14:03:22,848 INFO L175 Difference]: Start difference. First operand has 237 places, 199 transitions, 504 flow. Second operand 3 states and 1632 transitions. [2024-11-20 14:03:22,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 194 transitions, 550 flow [2024-11-20 14:03:22,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 194 transitions, 546 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:22,852 INFO L231 Difference]: Finished difference. Result has 231 places, 170 transitions, 442 flow [2024-11-20 14:03:22,852 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} [2024-11-20 14:03:22,852 INFO L277 CegarLoopForPetriNet]: 237 programPoint places, -6 predicate places. [2024-11-20 14:03:22,852 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 170 transitions, 442 flow [2024-11-20 14:03:22,853 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) [2024-11-20 14:03:22,853 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:22,853 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] [2024-11-20 14:03:22,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-11-20 14:03:22,853 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)] === [2024-11-20 14:03:22,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:22,854 INFO L85 PathProgramCache]: Analyzing trace with hash 110555683, now seen corresponding path program 1 times [2024-11-20 14:03:22,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:22,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473699555] [2024-11-20 14:03:22,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:22,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:23,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2040 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 1989 trivial. 0 not checked. [2024-11-20 14:03:23,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:23,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473699555] [2024-11-20 14:03:23,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473699555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:23,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:23,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:23,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042704970] [2024-11-20 14:03:23,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:23,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:23,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:23,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:23,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:23,100 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 584 out of 701 [2024-11-20 14:03:23,103 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) [2024-11-20 14:03:23,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:23,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 584 of 701 [2024-11-20 14:03:23,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:23,235 INFO L124 PetriNetUnfolderBase]: 0/398 cut-off events. [2024-11-20 14:03:23,236 INFO L125 PetriNetUnfolderBase]: For 185/185 co-relation queries the response was YES. [2024-11-20 14:03:23,236 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. [2024-11-20 14:03:23,237 INFO L140 encePairwiseOnDemand]: 696/701 looper letters, 25 selfloop transitions, 2 changer transitions 3/172 dead transitions. [2024-11-20 14:03:23,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 172 transitions, 506 flow [2024-11-20 14:03:23,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:23,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:23,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2951 transitions. [2024-11-20 14:03:23,241 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8419400855920114 [2024-11-20 14:03:23,241 INFO L175 Difference]: Start difference. First operand has 231 places, 170 transitions, 442 flow. Second operand 5 states and 2951 transitions. [2024-11-20 14:03:23,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 172 transitions, 506 flow [2024-11-20 14:03:23,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 172 transitions, 505 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:23,245 INFO L231 Difference]: Finished difference. Result has 211 places, 169 transitions, 447 flow [2024-11-20 14:03:23,245 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} [2024-11-20 14:03:23,245 INFO L277 CegarLoopForPetriNet]: 237 programPoint places, -26 predicate places. [2024-11-20 14:03:23,245 INFO L471 AbstractCegarLoop]: Abstraction has has 211 places, 169 transitions, 447 flow [2024-11-20 14:03:23,246 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) [2024-11-20 14:03:23,246 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:23,246 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] [2024-11-20 14:03:23,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-11-20 14:03:23,246 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)] === [2024-11-20 14:03:23,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:23,247 INFO L85 PathProgramCache]: Analyzing trace with hash -750165356, now seen corresponding path program 1 times [2024-11-20 14:03:23,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:23,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890557653] [2024-11-20 14:03:23,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:23,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:23,273 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:23,322 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:23,323 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:23,323 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2024-11-20 14:03:23,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2024-11-20 14:03:23,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2024-11-20 14:03:23,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2024-11-20 14:03:23,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2024-11-20 14:03:23,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2024-11-20 14:03:23,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 25 remaining) [2024-11-20 14:03:23,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2024-11-20 14:03:23,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2024-11-20 14:03:23,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2024-11-20 14:03:23,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2024-11-20 14:03:23,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2024-11-20 14:03:23,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2024-11-20 14:03:23,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2024-11-20 14:03:23,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2024-11-20 14:03:23,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2024-11-20 14:03:23,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2024-11-20 14:03:23,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2024-11-20 14:03:23,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2024-11-20 14:03:23,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2024-11-20 14:03:23,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2024-11-20 14:03:23,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2024-11-20 14:03:23,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2024-11-20 14:03:23,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2024-11-20 14:03:23,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2024-11-20 14:03:23,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-11-20 14:03:23,326 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:23,327 WARN L244 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:23,327 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2024-11-20 14:03:23,416 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:23,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 737 places, 738 transitions, 2232 flow [2024-11-20 14:03:23,594 INFO L124 PetriNetUnfolderBase]: 97/1247 cut-off events. [2024-11-20 14:03:23,594 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2024-11-20 14:03:23,604 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. [2024-11-20 14:03:23,604 INFO L82 GeneralOperation]: Start removeDead. Operand has 737 places, 738 transitions, 2232 flow [2024-11-20 14:03:23,607 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 246 places, 211 transitions, 803 flow [2024-11-20 14:03:23,607 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:23,607 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:23,607 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-20 14:03:23,608 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:23,609 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:23,609 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:23,609 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:23,609 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:23,609 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)] === [2024-11-20 14:03:23,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:23,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1754757635, now seen corresponding path program 1 times [2024-11-20 14:03:23,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:23,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090563243] [2024-11-20 14:03:23,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:23,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:23,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:23,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:23,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090563243] [2024-11-20 14:03:23,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090563243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:23,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:23,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:23,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21261026] [2024-11-20 14:03:23,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:23,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:23,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:23,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:23,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:23,719 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 599 out of 738 [2024-11-20 14:03:23,720 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) [2024-11-20 14:03:23,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:23,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 599 of 738 [2024-11-20 14:03:23,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:23,916 INFO L124 PetriNetUnfolderBase]: 39/960 cut-off events. [2024-11-20 14:03:23,916 INFO L125 PetriNetUnfolderBase]: For 1312/1312 co-relation queries the response was YES. [2024-11-20 14:03:23,920 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. [2024-11-20 14:03:23,921 INFO L140 encePairwiseOnDemand]: 732/738 looper letters, 28 selfloop transitions, 2 changer transitions 1/207 dead transitions. [2024-11-20 14:03:23,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 207 transitions, 855 flow [2024-11-20 14:03:23,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:23,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:23,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1831 transitions. [2024-11-20 14:03:23,924 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8270099367660343 [2024-11-20 14:03:23,924 INFO L175 Difference]: Start difference. First operand has 246 places, 211 transitions, 803 flow. Second operand 3 states and 1831 transitions. [2024-11-20 14:03:23,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 207 transitions, 855 flow [2024-11-20 14:03:23,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 207 transitions, 582 flow, removed 136 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:23,931 INFO L231 Difference]: Finished difference. Result has 246 places, 206 transitions, 524 flow [2024-11-20 14:03:23,932 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} [2024-11-20 14:03:23,932 INFO L277 CegarLoopForPetriNet]: 246 programPoint places, 0 predicate places. [2024-11-20 14:03:23,932 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 206 transitions, 524 flow [2024-11-20 14:03:23,933 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) [2024-11-20 14:03:23,933 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:23,933 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] [2024-11-20 14:03:23,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-11-20 14:03:23,933 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)] === [2024-11-20 14:03:23,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:23,934 INFO L85 PathProgramCache]: Analyzing trace with hash 179934086, now seen corresponding path program 1 times [2024-11-20 14:03:23,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:23,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840399056] [2024-11-20 14:03:23,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:23,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:23,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:23,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:23,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840399056] [2024-11-20 14:03:23,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840399056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:23,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:23,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:23,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906999737] [2024-11-20 14:03:23,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:23,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:23,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:23,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:23,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:24,008 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 561 out of 738 [2024-11-20 14:03:24,009 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) [2024-11-20 14:03:24,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:24,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 561 of 738 [2024-11-20 14:03:24,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:24,119 INFO L124 PetriNetUnfolderBase]: 20/861 cut-off events. [2024-11-20 14:03:24,120 INFO L125 PetriNetUnfolderBase]: For 206/206 co-relation queries the response was YES. [2024-11-20 14:03:24,125 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. [2024-11-20 14:03:24,126 INFO L140 encePairwiseOnDemand]: 732/738 looper letters, 26 selfloop transitions, 1 changer transitions 24/201 dead transitions. [2024-11-20 14:03:24,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 201 transitions, 572 flow [2024-11-20 14:03:24,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:24,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:24,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1717 transitions. [2024-11-20 14:03:24,128 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7755194218608853 [2024-11-20 14:03:24,128 INFO L175 Difference]: Start difference. First operand has 246 places, 206 transitions, 524 flow. Second operand 3 states and 1717 transitions. [2024-11-20 14:03:24,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 201 transitions, 572 flow [2024-11-20 14:03:24,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 201 transitions, 568 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:24,132 INFO L231 Difference]: Finished difference. Result has 240 places, 177 transitions, 462 flow [2024-11-20 14:03:24,132 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} [2024-11-20 14:03:24,132 INFO L277 CegarLoopForPetriNet]: 246 programPoint places, -6 predicate places. [2024-11-20 14:03:24,133 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 177 transitions, 462 flow [2024-11-20 14:03:24,133 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) [2024-11-20 14:03:24,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:24,133 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] [2024-11-20 14:03:24,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-11-20 14:03:24,134 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)] === [2024-11-20 14:03:24,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:24,134 INFO L85 PathProgramCache]: Analyzing trace with hash 2101980983, now seen corresponding path program 1 times [2024-11-20 14:03:24,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:24,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812871264] [2024-11-20 14:03:24,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:24,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:24,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2286 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 2232 trivial. 0 not checked. [2024-11-20 14:03:24,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:24,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812871264] [2024-11-20 14:03:24,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812871264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:24,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:24,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:24,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877301659] [2024-11-20 14:03:24,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:24,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:24,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:24,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:24,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:24,323 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 615 out of 738 [2024-11-20 14:03:24,325 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) [2024-11-20 14:03:24,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:24,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 615 of 738 [2024-11-20 14:03:24,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:24,414 INFO L124 PetriNetUnfolderBase]: 0/418 cut-off events. [2024-11-20 14:03:24,414 INFO L125 PetriNetUnfolderBase]: For 205/205 co-relation queries the response was YES. [2024-11-20 14:03:24,415 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. [2024-11-20 14:03:24,415 INFO L140 encePairwiseOnDemand]: 733/738 looper letters, 26 selfloop transitions, 2 changer transitions 3/179 dead transitions. [2024-11-20 14:03:24,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 179 transitions, 528 flow [2024-11-20 14:03:24,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:24,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:24,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3107 transitions. [2024-11-20 14:03:24,419 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8420054200542005 [2024-11-20 14:03:24,419 INFO L175 Difference]: Start difference. First operand has 240 places, 177 transitions, 462 flow. Second operand 5 states and 3107 transitions. [2024-11-20 14:03:24,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 179 transitions, 528 flow [2024-11-20 14:03:24,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 179 transitions, 527 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:24,423 INFO L231 Difference]: Finished difference. Result has 220 places, 176 transitions, 467 flow [2024-11-20 14:03:24,423 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} [2024-11-20 14:03:24,424 INFO L277 CegarLoopForPetriNet]: 246 programPoint places, -26 predicate places. [2024-11-20 14:03:24,424 INFO L471 AbstractCegarLoop]: Abstraction has has 220 places, 176 transitions, 467 flow [2024-11-20 14:03:24,425 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) [2024-11-20 14:03:24,425 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:24,425 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] [2024-11-20 14:03:24,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-11-20 14:03:24,425 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)] === [2024-11-20 14:03:24,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:24,426 INFO L85 PathProgramCache]: Analyzing trace with hash 134411398, now seen corresponding path program 1 times [2024-11-20 14:03:24,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:24,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010652383] [2024-11-20 14:03:24,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:24,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:24,464 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:24,538 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:24,538 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:24,538 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-11-20 14:03:24,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-11-20 14:03:24,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2024-11-20 14:03:24,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-11-20 14:03:24,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-11-20 14:03:24,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-11-20 14:03:24,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 26 remaining) [2024-11-20 14:03:24,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2024-11-20 14:03:24,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-11-20 14:03:24,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-11-20 14:03:24,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2024-11-20 14:03:24,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-11-20 14:03:24,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-11-20 14:03:24,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-11-20 14:03:24,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-11-20 14:03:24,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-11-20 14:03:24,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-11-20 14:03:24,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-11-20 14:03:24,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-11-20 14:03:24,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-11-20 14:03:24,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-11-20 14:03:24,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-11-20 14:03:24,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-11-20 14:03:24,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-11-20 14:03:24,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-11-20 14:03:24,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-11-20 14:03:24,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2024-11-20 14:03:24,542 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:24,543 WARN L244 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:24,543 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2024-11-20 14:03:24,647 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:24,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 774 places, 775 transitions, 2386 flow [2024-11-20 14:03:24,917 INFO L124 PetriNetUnfolderBase]: 102/1311 cut-off events. [2024-11-20 14:03:24,917 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2024-11-20 14:03:24,922 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. [2024-11-20 14:03:24,922 INFO L82 GeneralOperation]: Start removeDead. Operand has 774 places, 775 transitions, 2386 flow [2024-11-20 14:03:24,924 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 255 places, 218 transitions, 857 flow [2024-11-20 14:03:24,925 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:24,925 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:24,925 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-11-20 14:03:24,926 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:24,926 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:24,926 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:24,927 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:24,927 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:24,927 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)] === [2024-11-20 14:03:24,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:24,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1939447549, now seen corresponding path program 1 times [2024-11-20 14:03:24,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:24,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352703764] [2024-11-20 14:03:24,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:24,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:24,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:24,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:24,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:24,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352703764] [2024-11-20 14:03:24,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352703764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:24,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:24,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:24,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491711436] [2024-11-20 14:03:24,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:24,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:24,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:24,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:24,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:25,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 629 out of 775 [2024-11-20 14:03:25,046 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) [2024-11-20 14:03:25,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:25,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 629 of 775 [2024-11-20 14:03:25,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:25,224 INFO L124 PetriNetUnfolderBase]: 41/1009 cut-off events. [2024-11-20 14:03:25,225 INFO L125 PetriNetUnfolderBase]: For 1521/1521 co-relation queries the response was YES. [2024-11-20 14:03:25,232 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. [2024-11-20 14:03:25,234 INFO L140 encePairwiseOnDemand]: 769/775 looper letters, 29 selfloop transitions, 2 changer transitions 1/214 dead transitions. [2024-11-20 14:03:25,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 214 transitions, 911 flow [2024-11-20 14:03:25,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:25,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:25,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1922 transitions. [2024-11-20 14:03:25,236 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8266666666666667 [2024-11-20 14:03:25,236 INFO L175 Difference]: Start difference. First operand has 255 places, 218 transitions, 857 flow. Second operand 3 states and 1922 transitions. [2024-11-20 14:03:25,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 214 transitions, 911 flow [2024-11-20 14:03:25,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 214 transitions, 604 flow, removed 153 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:25,243 INFO L231 Difference]: Finished difference. Result has 255 places, 213 transitions, 544 flow [2024-11-20 14:03:25,243 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} [2024-11-20 14:03:25,244 INFO L277 CegarLoopForPetriNet]: 255 programPoint places, 0 predicate places. [2024-11-20 14:03:25,244 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 213 transitions, 544 flow [2024-11-20 14:03:25,244 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) [2024-11-20 14:03:25,244 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:25,245 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:25,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2024-11-20 14:03:25,245 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)] === [2024-11-20 14:03:25,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:25,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1344865350, now seen corresponding path program 1 times [2024-11-20 14:03:25,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:25,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776454500] [2024-11-20 14:03:25,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:25,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:25,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:25,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:25,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776454500] [2024-11-20 14:03:25,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776454500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:25,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:25,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:25,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812996474] [2024-11-20 14:03:25,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:25,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:25,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:25,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:25,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:25,334 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 589 out of 775 [2024-11-20 14:03:25,335 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) [2024-11-20 14:03:25,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:25,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 589 of 775 [2024-11-20 14:03:25,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:25,468 INFO L124 PetriNetUnfolderBase]: 21/905 cut-off events. [2024-11-20 14:03:25,468 INFO L125 PetriNetUnfolderBase]: For 227/227 co-relation queries the response was YES. [2024-11-20 14:03:25,472 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. [2024-11-20 14:03:25,473 INFO L140 encePairwiseOnDemand]: 769/775 looper letters, 27 selfloop transitions, 1 changer transitions 24/208 dead transitions. [2024-11-20 14:03:25,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 208 transitions, 594 flow [2024-11-20 14:03:25,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:25,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:25,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1802 transitions. [2024-11-20 14:03:25,474 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7750537634408602 [2024-11-20 14:03:25,474 INFO L175 Difference]: Start difference. First operand has 255 places, 213 transitions, 544 flow. Second operand 3 states and 1802 transitions. [2024-11-20 14:03:25,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 208 transitions, 594 flow [2024-11-20 14:03:25,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 208 transitions, 590 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:25,477 INFO L231 Difference]: Finished difference. Result has 249 places, 184 transitions, 482 flow [2024-11-20 14:03:25,478 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} [2024-11-20 14:03:25,478 INFO L277 CegarLoopForPetriNet]: 255 programPoint places, -6 predicate places. [2024-11-20 14:03:25,478 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 184 transitions, 482 flow [2024-11-20 14:03:25,478 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) [2024-11-20 14:03:25,478 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:25,478 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] [2024-11-20 14:03:25,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2024-11-20 14:03:25,479 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)] === [2024-11-20 14:03:25,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:25,479 INFO L85 PathProgramCache]: Analyzing trace with hash -281895785, now seen corresponding path program 1 times [2024-11-20 14:03:25,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:25,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229078817] [2024-11-20 14:03:25,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:25,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:25,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2546 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 2489 trivial. 0 not checked. [2024-11-20 14:03:25,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:25,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229078817] [2024-11-20 14:03:25,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229078817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:25,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:25,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:25,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814516226] [2024-11-20 14:03:25,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:25,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:25,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:25,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:25,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:25,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 646 out of 775 [2024-11-20 14:03:25,668 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) [2024-11-20 14:03:25,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:25,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 646 of 775 [2024-11-20 14:03:25,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:25,762 INFO L124 PetriNetUnfolderBase]: 0/438 cut-off events. [2024-11-20 14:03:25,762 INFO L125 PetriNetUnfolderBase]: For 226/226 co-relation queries the response was YES. [2024-11-20 14:03:25,762 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. [2024-11-20 14:03:25,762 INFO L140 encePairwiseOnDemand]: 770/775 looper letters, 27 selfloop transitions, 2 changer transitions 3/186 dead transitions. [2024-11-20 14:03:25,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 186 transitions, 550 flow [2024-11-20 14:03:25,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:25,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:25,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3263 transitions. [2024-11-20 14:03:25,765 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8420645161290322 [2024-11-20 14:03:25,765 INFO L175 Difference]: Start difference. First operand has 249 places, 184 transitions, 482 flow. Second operand 5 states and 3263 transitions. [2024-11-20 14:03:25,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 186 transitions, 550 flow [2024-11-20 14:03:25,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 186 transitions, 549 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:25,768 INFO L231 Difference]: Finished difference. Result has 229 places, 183 transitions, 487 flow [2024-11-20 14:03:25,768 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} [2024-11-20 14:03:25,769 INFO L277 CegarLoopForPetriNet]: 255 programPoint places, -26 predicate places. [2024-11-20 14:03:25,769 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 183 transitions, 487 flow [2024-11-20 14:03:25,769 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) [2024-11-20 14:03:25,769 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:25,770 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] [2024-11-20 14:03:25,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2024-11-20 14:03:25,770 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)] === [2024-11-20 14:03:25,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:25,770 INFO L85 PathProgramCache]: Analyzing trace with hash -135605729, now seen corresponding path program 1 times [2024-11-20 14:03:25,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:25,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213881854] [2024-11-20 14:03:25,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:25,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:25,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:25,847 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:25,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:25,904 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:25,904 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:25,905 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 27 remaining) [2024-11-20 14:03:25,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2024-11-20 14:03:25,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2024-11-20 14:03:25,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2024-11-20 14:03:25,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2024-11-20 14:03:25,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2024-11-20 14:03:25,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 27 remaining) [2024-11-20 14:03:25,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2024-11-20 14:03:25,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2024-11-20 14:03:25,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2024-11-20 14:03:25,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2024-11-20 14:03:25,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2024-11-20 14:03:25,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2024-11-20 14:03:25,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2024-11-20 14:03:25,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2024-11-20 14:03:25,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2024-11-20 14:03:25,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 27 remaining) [2024-11-20 14:03:25,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 27 remaining) [2024-11-20 14:03:25,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2024-11-20 14:03:25,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2024-11-20 14:03:25,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2024-11-20 14:03:25,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2024-11-20 14:03:25,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2024-11-20 14:03:25,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2024-11-20 14:03:25,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2024-11-20 14:03:25,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2024-11-20 14:03:25,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2024-11-20 14:03:25,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2024-11-20 14:03:25,908 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:25,908 WARN L244 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:25,908 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2024-11-20 14:03:25,998 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:26,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 811 places, 812 transitions, 2544 flow [2024-11-20 14:03:26,199 INFO L124 PetriNetUnfolderBase]: 107/1375 cut-off events. [2024-11-20 14:03:26,199 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2024-11-20 14:03:26,207 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. [2024-11-20 14:03:26,207 INFO L82 GeneralOperation]: Start removeDead. Operand has 811 places, 812 transitions, 2544 flow [2024-11-20 14:03:26,210 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 264 places, 225 transitions, 913 flow [2024-11-20 14:03:26,211 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:26,211 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:26,211 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-20 14:03:26,212 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:26,213 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:26,213 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:26,213 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:26,213 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:26,213 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)] === [2024-11-20 14:03:26,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:26,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1387590397, now seen corresponding path program 1 times [2024-11-20 14:03:26,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:26,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072507241] [2024-11-20 14:03:26,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:26,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:26,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:26,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:26,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072507241] [2024-11-20 14:03:26,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072507241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:26,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:26,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:26,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828929507] [2024-11-20 14:03:26,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:26,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:26,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:26,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:26,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:26,343 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 659 out of 812 [2024-11-20 14:03:26,345 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) [2024-11-20 14:03:26,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:26,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 659 of 812 [2024-11-20 14:03:26,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:26,548 INFO L124 PetriNetUnfolderBase]: 43/1058 cut-off events. [2024-11-20 14:03:26,549 INFO L125 PetriNetUnfolderBase]: For 1751/1751 co-relation queries the response was YES. [2024-11-20 14:03:26,557 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. [2024-11-20 14:03:26,560 INFO L140 encePairwiseOnDemand]: 806/812 looper letters, 30 selfloop transitions, 2 changer transitions 1/221 dead transitions. [2024-11-20 14:03:26,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 221 transitions, 969 flow [2024-11-20 14:03:26,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:26,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:26,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2013 transitions. [2024-11-20 14:03:26,562 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8263546798029556 [2024-11-20 14:03:26,562 INFO L175 Difference]: Start difference. First operand has 264 places, 225 transitions, 913 flow. Second operand 3 states and 2013 transitions. [2024-11-20 14:03:26,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 221 transitions, 969 flow [2024-11-20 14:03:26,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 221 transitions, 626 flow, removed 171 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:26,569 INFO L231 Difference]: Finished difference. Result has 264 places, 220 transitions, 564 flow [2024-11-20 14:03:26,569 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} [2024-11-20 14:03:26,569 INFO L277 CegarLoopForPetriNet]: 264 programPoint places, 0 predicate places. [2024-11-20 14:03:26,571 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 220 transitions, 564 flow [2024-11-20 14:03:26,572 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) [2024-11-20 14:03:26,572 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:26,572 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] [2024-11-20 14:03:26,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2024-11-20 14:03:26,572 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)] === [2024-11-20 14:03:26,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:26,572 INFO L85 PathProgramCache]: Analyzing trace with hash -665511098, now seen corresponding path program 1 times [2024-11-20 14:03:26,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:26,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855247136] [2024-11-20 14:03:26,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:26,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:26,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:26,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:26,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855247136] [2024-11-20 14:03:26,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855247136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:26,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:26,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:26,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628757463] [2024-11-20 14:03:26,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:26,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:26,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:26,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:26,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:26,659 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 617 out of 812 [2024-11-20 14:03:26,660 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) [2024-11-20 14:03:26,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:26,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 617 of 812 [2024-11-20 14:03:26,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:26,872 INFO L124 PetriNetUnfolderBase]: 22/949 cut-off events. [2024-11-20 14:03:26,872 INFO L125 PetriNetUnfolderBase]: For 249/249 co-relation queries the response was YES. [2024-11-20 14:03:26,874 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. [2024-11-20 14:03:26,875 INFO L140 encePairwiseOnDemand]: 806/812 looper letters, 28 selfloop transitions, 1 changer transitions 24/215 dead transitions. [2024-11-20 14:03:26,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 215 transitions, 616 flow [2024-11-20 14:03:26,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:26,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:26,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1887 transitions. [2024-11-20 14:03:26,878 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7746305418719212 [2024-11-20 14:03:26,878 INFO L175 Difference]: Start difference. First operand has 264 places, 220 transitions, 564 flow. Second operand 3 states and 1887 transitions. [2024-11-20 14:03:26,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 215 transitions, 616 flow [2024-11-20 14:03:26,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 215 transitions, 612 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:26,882 INFO L231 Difference]: Finished difference. Result has 258 places, 191 transitions, 502 flow [2024-11-20 14:03:26,882 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} [2024-11-20 14:03:26,883 INFO L277 CegarLoopForPetriNet]: 264 programPoint places, -6 predicate places. [2024-11-20 14:03:26,883 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 191 transitions, 502 flow [2024-11-20 14:03:26,883 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) [2024-11-20 14:03:26,884 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:26,884 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] [2024-11-20 14:03:26,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2024-11-20 14:03:26,884 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)] === [2024-11-20 14:03:26,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:26,885 INFO L85 PathProgramCache]: Analyzing trace with hash -930489437, now seen corresponding path program 1 times [2024-11-20 14:03:26,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:26,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406266151] [2024-11-20 14:03:26,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:26,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:27,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2820 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 2760 trivial. 0 not checked. [2024-11-20 14:03:27,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:27,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406266151] [2024-11-20 14:03:27,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406266151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:27,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:27,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:27,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893206340] [2024-11-20 14:03:27,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:27,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:27,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:27,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:27,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:27,146 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 677 out of 812 [2024-11-20 14:03:27,149 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) [2024-11-20 14:03:27,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:27,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 677 of 812 [2024-11-20 14:03:27,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:27,293 INFO L124 PetriNetUnfolderBase]: 0/458 cut-off events. [2024-11-20 14:03:27,294 INFO L125 PetriNetUnfolderBase]: For 248/248 co-relation queries the response was YES. [2024-11-20 14:03:27,294 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. [2024-11-20 14:03:27,294 INFO L140 encePairwiseOnDemand]: 807/812 looper letters, 28 selfloop transitions, 2 changer transitions 3/193 dead transitions. [2024-11-20 14:03:27,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 193 transitions, 572 flow [2024-11-20 14:03:27,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:27,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:27,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3419 transitions. [2024-11-20 14:03:27,298 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8421182266009852 [2024-11-20 14:03:27,299 INFO L175 Difference]: Start difference. First operand has 258 places, 191 transitions, 502 flow. Second operand 5 states and 3419 transitions. [2024-11-20 14:03:27,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 193 transitions, 572 flow [2024-11-20 14:03:27,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 193 transitions, 571 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:27,303 INFO L231 Difference]: Finished difference. Result has 238 places, 190 transitions, 507 flow [2024-11-20 14:03:27,303 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} [2024-11-20 14:03:27,303 INFO L277 CegarLoopForPetriNet]: 264 programPoint places, -26 predicate places. [2024-11-20 14:03:27,304 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 190 transitions, 507 flow [2024-11-20 14:03:27,304 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) [2024-11-20 14:03:27,304 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:27,305 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] [2024-11-20 14:03:27,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2024-11-20 14:03:27,305 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)] === [2024-11-20 14:03:27,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:27,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1065618175, now seen corresponding path program 1 times [2024-11-20 14:03:27,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:27,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705282105] [2024-11-20 14:03:27,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:27,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:27,356 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:27,434 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:27,435 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:27,435 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 28 remaining) [2024-11-20 14:03:27,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2024-11-20 14:03:27,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 28 remaining) [2024-11-20 14:03:27,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (24 of 28 remaining) [2024-11-20 14:03:27,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (23 of 28 remaining) [2024-11-20 14:03:27,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (22 of 28 remaining) [2024-11-20 14:03:27,436 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 28 remaining) [2024-11-20 14:03:27,436 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 28 remaining) [2024-11-20 14:03:27,436 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2024-11-20 14:03:27,436 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 28 remaining) [2024-11-20 14:03:27,436 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2024-11-20 14:03:27,436 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 28 remaining) [2024-11-20 14:03:27,436 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2024-11-20 14:03:27,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 28 remaining) [2024-11-20 14:03:27,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 28 remaining) [2024-11-20 14:03:27,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 28 remaining) [2024-11-20 14:03:27,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 28 remaining) [2024-11-20 14:03:27,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 28 remaining) [2024-11-20 14:03:27,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 28 remaining) [2024-11-20 14:03:27,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 28 remaining) [2024-11-20 14:03:27,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 28 remaining) [2024-11-20 14:03:27,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2024-11-20 14:03:27,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2024-11-20 14:03:27,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2024-11-20 14:03:27,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2024-11-20 14:03:27,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 28 remaining) [2024-11-20 14:03:27,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2024-11-20 14:03:27,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2024-11-20 14:03:27,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2024-11-20 14:03:27,439 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:27,439 WARN L244 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:27,439 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2024-11-20 14:03:27,558 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:27,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 848 places, 849 transitions, 2706 flow [2024-11-20 14:03:27,835 INFO L124 PetriNetUnfolderBase]: 112/1439 cut-off events. [2024-11-20 14:03:27,835 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2024-11-20 14:03:27,846 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. [2024-11-20 14:03:27,846 INFO L82 GeneralOperation]: Start removeDead. Operand has 848 places, 849 transitions, 2706 flow [2024-11-20 14:03:27,849 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 273 places, 232 transitions, 971 flow [2024-11-20 14:03:27,850 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:27,850 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:27,850 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-20 14:03:27,852 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:27,852 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:27,852 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:27,852 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:27,853 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:27,853 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)] === [2024-11-20 14:03:27,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:27,853 INFO L85 PathProgramCache]: Analyzing trace with hash -884638205, now seen corresponding path program 1 times [2024-11-20 14:03:27,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:27,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286041495] [2024-11-20 14:03:27,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:27,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:27,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:27,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:27,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286041495] [2024-11-20 14:03:27,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286041495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:27,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:27,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:27,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464689536] [2024-11-20 14:03:27,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:27,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:27,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:27,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:27,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:27,993 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 689 out of 849 [2024-11-20 14:03:27,995 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) [2024-11-20 14:03:27,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:27,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 689 of 849 [2024-11-20 14:03:27,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:28,177 INFO L124 PetriNetUnfolderBase]: 45/1107 cut-off events. [2024-11-20 14:03:28,177 INFO L125 PetriNetUnfolderBase]: For 2003/2003 co-relation queries the response was YES. [2024-11-20 14:03:28,184 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. [2024-11-20 14:03:28,186 INFO L140 encePairwiseOnDemand]: 843/849 looper letters, 31 selfloop transitions, 2 changer transitions 1/228 dead transitions. [2024-11-20 14:03:28,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 228 transitions, 1029 flow [2024-11-20 14:03:28,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:28,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:28,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2104 transitions. [2024-11-20 14:03:28,188 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8260698861405575 [2024-11-20 14:03:28,188 INFO L175 Difference]: Start difference. First operand has 273 places, 232 transitions, 971 flow. Second operand 3 states and 2104 transitions. [2024-11-20 14:03:28,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 228 transitions, 1029 flow [2024-11-20 14:03:28,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 228 transitions, 648 flow, removed 190 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:28,195 INFO L231 Difference]: Finished difference. Result has 273 places, 227 transitions, 584 flow [2024-11-20 14:03:28,195 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} [2024-11-20 14:03:28,195 INFO L277 CegarLoopForPetriNet]: 273 programPoint places, 0 predicate places. [2024-11-20 14:03:28,195 INFO L471 AbstractCegarLoop]: Abstraction has has 273 places, 227 transitions, 584 flow [2024-11-20 14:03:28,196 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) [2024-11-20 14:03:28,196 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:28,196 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:28,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2024-11-20 14:03:28,196 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)] === [2024-11-20 14:03:28,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:28,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1556227962, now seen corresponding path program 1 times [2024-11-20 14:03:28,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:28,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468953160] [2024-11-20 14:03:28,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:28,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:28,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:28,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:28,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:28,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468953160] [2024-11-20 14:03:28,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468953160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:28,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:28,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:28,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965179729] [2024-11-20 14:03:28,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:28,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:28,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:28,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:28,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:28,297 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 645 out of 849 [2024-11-20 14:03:28,298 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) [2024-11-20 14:03:28,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:28,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 645 of 849 [2024-11-20 14:03:28,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:28,461 INFO L124 PetriNetUnfolderBase]: 23/993 cut-off events. [2024-11-20 14:03:28,462 INFO L125 PetriNetUnfolderBase]: For 272/272 co-relation queries the response was YES. [2024-11-20 14:03:28,466 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. [2024-11-20 14:03:28,467 INFO L140 encePairwiseOnDemand]: 843/849 looper letters, 29 selfloop transitions, 1 changer transitions 24/222 dead transitions. [2024-11-20 14:03:28,467 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 222 transitions, 638 flow [2024-11-20 14:03:28,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:28,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:28,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1972 transitions. [2024-11-20 14:03:28,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7742442088731841 [2024-11-20 14:03:28,468 INFO L175 Difference]: Start difference. First operand has 273 places, 227 transitions, 584 flow. Second operand 3 states and 1972 transitions. [2024-11-20 14:03:28,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 222 transitions, 638 flow [2024-11-20 14:03:28,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 222 transitions, 634 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:28,470 INFO L231 Difference]: Finished difference. Result has 267 places, 198 transitions, 522 flow [2024-11-20 14:03:28,470 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} [2024-11-20 14:03:28,471 INFO L277 CegarLoopForPetriNet]: 273 programPoint places, -6 predicate places. [2024-11-20 14:03:28,471 INFO L471 AbstractCegarLoop]: Abstraction has has 267 places, 198 transitions, 522 flow [2024-11-20 14:03:28,471 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) [2024-11-20 14:03:28,471 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:28,471 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] [2024-11-20 14:03:28,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2024-11-20 14:03:28,471 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)] === [2024-11-20 14:03:28,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:28,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1668264517, now seen corresponding path program 1 times [2024-11-20 14:03:28,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:28,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954566962] [2024-11-20 14:03:28,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:28,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:28,591 INFO L134 CoverageAnalysis]: Checked inductivity of 3108 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 3045 trivial. 0 not checked. [2024-11-20 14:03:28,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:28,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954566962] [2024-11-20 14:03:28,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954566962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:28,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:28,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:28,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388567457] [2024-11-20 14:03:28,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:28,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:28,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:28,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:28,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:28,672 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 708 out of 849 [2024-11-20 14:03:28,674 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) [2024-11-20 14:03:28,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:28,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 708 of 849 [2024-11-20 14:03:28,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:28,744 INFO L124 PetriNetUnfolderBase]: 0/478 cut-off events. [2024-11-20 14:03:28,745 INFO L125 PetriNetUnfolderBase]: For 271/271 co-relation queries the response was YES. [2024-11-20 14:03:28,745 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. [2024-11-20 14:03:28,745 INFO L140 encePairwiseOnDemand]: 844/849 looper letters, 29 selfloop transitions, 2 changer transitions 3/200 dead transitions. [2024-11-20 14:03:28,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 200 transitions, 594 flow [2024-11-20 14:03:28,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:28,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:28,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3575 transitions. [2024-11-20 14:03:28,747 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8421672555948174 [2024-11-20 14:03:28,747 INFO L175 Difference]: Start difference. First operand has 267 places, 198 transitions, 522 flow. Second operand 5 states and 3575 transitions. [2024-11-20 14:03:28,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 200 transitions, 594 flow [2024-11-20 14:03:28,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 200 transitions, 593 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:28,751 INFO L231 Difference]: Finished difference. Result has 247 places, 197 transitions, 527 flow [2024-11-20 14:03:28,751 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} [2024-11-20 14:03:28,751 INFO L277 CegarLoopForPetriNet]: 273 programPoint places, -26 predicate places. [2024-11-20 14:03:28,752 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 197 transitions, 527 flow [2024-11-20 14:03:28,752 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) [2024-11-20 14:03:28,752 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:28,752 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] [2024-11-20 14:03:28,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2024-11-20 14:03:28,753 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)] === [2024-11-20 14:03:28,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:28,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1272017210, now seen corresponding path program 1 times [2024-11-20 14:03:28,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:28,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408433979] [2024-11-20 14:03:28,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:28,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:28,789 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:28,859 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:28,859 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:28,859 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2024-11-20 14:03:28,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2024-11-20 14:03:28,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2024-11-20 14:03:28,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2024-11-20 14:03:28,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2024-11-20 14:03:28,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2024-11-20 14:03:28,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 29 remaining) [2024-11-20 14:03:28,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2024-11-20 14:03:28,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2024-11-20 14:03:28,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2024-11-20 14:03:28,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2024-11-20 14:03:28,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2024-11-20 14:03:28,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2024-11-20 14:03:28,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2024-11-20 14:03:28,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2024-11-20 14:03:28,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2024-11-20 14:03:28,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2024-11-20 14:03:28,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 29 remaining) [2024-11-20 14:03:28,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 29 remaining) [2024-11-20 14:03:28,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2024-11-20 14:03:28,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2024-11-20 14:03:28,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2024-11-20 14:03:28,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2024-11-20 14:03:28,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2024-11-20 14:03:28,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2024-11-20 14:03:28,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2024-11-20 14:03:28,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2024-11-20 14:03:28,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2024-11-20 14:03:28,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2024-11-20 14:03:28,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2024-11-20 14:03:28,863 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:28,863 WARN L244 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:28,863 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2024-11-20 14:03:28,959 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:28,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 885 places, 886 transitions, 2872 flow [2024-11-20 14:03:29,172 INFO L124 PetriNetUnfolderBase]: 117/1503 cut-off events. [2024-11-20 14:03:29,173 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2024-11-20 14:03:29,185 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. [2024-11-20 14:03:29,185 INFO L82 GeneralOperation]: Start removeDead. Operand has 885 places, 886 transitions, 2872 flow [2024-11-20 14:03:29,188 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 282 places, 239 transitions, 1031 flow [2024-11-20 14:03:29,189 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:29,189 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:29,189 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-11-20 14:03:29,190 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:29,191 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:29,191 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:29,191 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:29,191 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:29,191 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)] === [2024-11-20 14:03:29,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:29,191 INFO L85 PathProgramCache]: Analyzing trace with hash -430590973, now seen corresponding path program 1 times [2024-11-20 14:03:29,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:29,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678492854] [2024-11-20 14:03:29,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:29,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:29,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:29,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:29,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678492854] [2024-11-20 14:03:29,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678492854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:29,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:29,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:29,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50035004] [2024-11-20 14:03:29,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:29,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:29,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:29,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:29,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:29,303 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 719 out of 886 [2024-11-20 14:03:29,304 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) [2024-11-20 14:03:29,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:29,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 719 of 886 [2024-11-20 14:03:29,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:29,469 INFO L124 PetriNetUnfolderBase]: 47/1156 cut-off events. [2024-11-20 14:03:29,470 INFO L125 PetriNetUnfolderBase]: For 2278/2278 co-relation queries the response was YES. [2024-11-20 14:03:29,477 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. [2024-11-20 14:03:29,479 INFO L140 encePairwiseOnDemand]: 880/886 looper letters, 32 selfloop transitions, 2 changer transitions 1/235 dead transitions. [2024-11-20 14:03:29,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 235 transitions, 1091 flow [2024-11-20 14:03:29,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:29,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:29,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2195 transitions. [2024-11-20 14:03:29,481 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.825808878856283 [2024-11-20 14:03:29,481 INFO L175 Difference]: Start difference. First operand has 282 places, 239 transitions, 1031 flow. Second operand 3 states and 2195 transitions. [2024-11-20 14:03:29,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 235 transitions, 1091 flow [2024-11-20 14:03:29,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 235 transitions, 670 flow, removed 210 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:29,487 INFO L231 Difference]: Finished difference. Result has 282 places, 234 transitions, 604 flow [2024-11-20 14:03:29,487 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} [2024-11-20 14:03:29,488 INFO L277 CegarLoopForPetriNet]: 282 programPoint places, 0 predicate places. [2024-11-20 14:03:29,488 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 234 transitions, 604 flow [2024-11-20 14:03:29,488 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) [2024-11-20 14:03:29,488 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:29,488 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] [2024-11-20 14:03:29,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2024-11-20 14:03:29,489 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)] === [2024-11-20 14:03:29,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:29,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1327285242, now seen corresponding path program 1 times [2024-11-20 14:03:29,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:29,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965644608] [2024-11-20 14:03:29,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:29,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:29,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:29,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:29,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965644608] [2024-11-20 14:03:29,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965644608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:29,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:29,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:29,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444326809] [2024-11-20 14:03:29,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:29,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:29,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:29,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:29,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:29,570 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 673 out of 886 [2024-11-20 14:03:29,571 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) [2024-11-20 14:03:29,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:29,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 673 of 886 [2024-11-20 14:03:29,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:29,754 INFO L124 PetriNetUnfolderBase]: 24/1037 cut-off events. [2024-11-20 14:03:29,754 INFO L125 PetriNetUnfolderBase]: For 296/296 co-relation queries the response was YES. [2024-11-20 14:03:29,759 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. [2024-11-20 14:03:29,759 INFO L140 encePairwiseOnDemand]: 880/886 looper letters, 30 selfloop transitions, 1 changer transitions 24/229 dead transitions. [2024-11-20 14:03:29,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 229 transitions, 660 flow [2024-11-20 14:03:29,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:29,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:29,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2057 transitions. [2024-11-20 14:03:29,762 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7738901429646351 [2024-11-20 14:03:29,762 INFO L175 Difference]: Start difference. First operand has 282 places, 234 transitions, 604 flow. Second operand 3 states and 2057 transitions. [2024-11-20 14:03:29,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 229 transitions, 660 flow [2024-11-20 14:03:29,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 229 transitions, 656 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:29,764 INFO L231 Difference]: Finished difference. Result has 276 places, 205 transitions, 542 flow [2024-11-20 14:03:29,765 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} [2024-11-20 14:03:29,765 INFO L277 CegarLoopForPetriNet]: 282 programPoint places, -6 predicate places. [2024-11-20 14:03:29,765 INFO L471 AbstractCegarLoop]: Abstraction has has 276 places, 205 transitions, 542 flow [2024-11-20 14:03:29,765 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) [2024-11-20 14:03:29,765 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:29,765 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] [2024-11-20 14:03:29,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2024-11-20 14:03:29,765 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)] === [2024-11-20 14:03:29,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:29,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1876137023, now seen corresponding path program 1 times [2024-11-20 14:03:29,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:29,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671241539] [2024-11-20 14:03:29,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:29,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:29,887 INFO L134 CoverageAnalysis]: Checked inductivity of 3410 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 3344 trivial. 0 not checked. [2024-11-20 14:03:29,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:29,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671241539] [2024-11-20 14:03:29,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671241539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:29,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:29,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:29,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701770607] [2024-11-20 14:03:29,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:29,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:29,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:29,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:29,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:29,983 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 739 out of 886 [2024-11-20 14:03:29,984 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) [2024-11-20 14:03:29,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:29,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 739 of 886 [2024-11-20 14:03:29,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:30,086 INFO L124 PetriNetUnfolderBase]: 0/498 cut-off events. [2024-11-20 14:03:30,087 INFO L125 PetriNetUnfolderBase]: For 295/295 co-relation queries the response was YES. [2024-11-20 14:03:30,087 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. [2024-11-20 14:03:30,087 INFO L140 encePairwiseOnDemand]: 881/886 looper letters, 30 selfloop transitions, 2 changer transitions 3/207 dead transitions. [2024-11-20 14:03:30,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 207 transitions, 616 flow [2024-11-20 14:03:30,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:30,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:30,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3731 transitions. [2024-11-20 14:03:30,090 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8422121896162528 [2024-11-20 14:03:30,091 INFO L175 Difference]: Start difference. First operand has 276 places, 205 transitions, 542 flow. Second operand 5 states and 3731 transitions. [2024-11-20 14:03:30,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 207 transitions, 616 flow [2024-11-20 14:03:30,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 207 transitions, 615 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:30,094 INFO L231 Difference]: Finished difference. Result has 256 places, 204 transitions, 547 flow [2024-11-20 14:03:30,094 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} [2024-11-20 14:03:30,094 INFO L277 CegarLoopForPetriNet]: 282 programPoint places, -26 predicate places. [2024-11-20 14:03:30,095 INFO L471 AbstractCegarLoop]: Abstraction has has 256 places, 204 transitions, 547 flow [2024-11-20 14:03:30,095 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) [2024-11-20 14:03:30,095 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:30,095 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] [2024-11-20 14:03:30,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2024-11-20 14:03:30,096 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)] === [2024-11-20 14:03:30,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:30,096 INFO L85 PathProgramCache]: Analyzing trace with hash 48442644, now seen corresponding path program 1 times [2024-11-20 14:03:30,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:30,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320340514] [2024-11-20 14:03:30,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:30,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:30,132 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:30,207 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:30,207 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:30,207 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 30 remaining) [2024-11-20 14:03:30,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 30 remaining) [2024-11-20 14:03:30,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 30 remaining) [2024-11-20 14:03:30,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (26 of 30 remaining) [2024-11-20 14:03:30,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (25 of 30 remaining) [2024-11-20 14:03:30,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (24 of 30 remaining) [2024-11-20 14:03:30,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 30 remaining) [2024-11-20 14:03:30,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 30 remaining) [2024-11-20 14:03:30,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 30 remaining) [2024-11-20 14:03:30,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 30 remaining) [2024-11-20 14:03:30,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 30 remaining) [2024-11-20 14:03:30,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 30 remaining) [2024-11-20 14:03:30,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 30 remaining) [2024-11-20 14:03:30,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 30 remaining) [2024-11-20 14:03:30,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 30 remaining) [2024-11-20 14:03:30,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 30 remaining) [2024-11-20 14:03:30,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 30 remaining) [2024-11-20 14:03:30,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 30 remaining) [2024-11-20 14:03:30,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 30 remaining) [2024-11-20 14:03:30,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 30 remaining) [2024-11-20 14:03:30,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 30 remaining) [2024-11-20 14:03:30,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 30 remaining) [2024-11-20 14:03:30,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 30 remaining) [2024-11-20 14:03:30,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 30 remaining) [2024-11-20 14:03:30,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 30 remaining) [2024-11-20 14:03:30,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 30 remaining) [2024-11-20 14:03:30,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 30 remaining) [2024-11-20 14:03:30,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 30 remaining) [2024-11-20 14:03:30,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 30 remaining) [2024-11-20 14:03:30,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 30 remaining) [2024-11-20 14:03:30,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2024-11-20 14:03:30,211 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:30,211 WARN L244 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:30,212 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2024-11-20 14:03:30,325 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:30,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 922 places, 923 transitions, 3042 flow [2024-11-20 14:03:30,546 INFO L124 PetriNetUnfolderBase]: 122/1567 cut-off events. [2024-11-20 14:03:30,546 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2024-11-20 14:03:30,557 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. [2024-11-20 14:03:30,557 INFO L82 GeneralOperation]: Start removeDead. Operand has 922 places, 923 transitions, 3042 flow [2024-11-20 14:03:30,560 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 291 places, 246 transitions, 1093 flow [2024-11-20 14:03:30,561 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:30,561 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:30,561 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-11-20 14:03:30,562 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:30,562 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:30,562 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:30,562 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:30,562 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:30,562 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)] === [2024-11-20 14:03:30,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:30,563 INFO L85 PathProgramCache]: Analyzing trace with hash -25448701, now seen corresponding path program 1 times [2024-11-20 14:03:30,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:30,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812277086] [2024-11-20 14:03:30,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:30,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:30,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:30,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:30,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812277086] [2024-11-20 14:03:30,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812277086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:30,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:30,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:30,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7389808] [2024-11-20 14:03:30,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:30,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:30,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:30,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:30,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:30,691 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 749 out of 923 [2024-11-20 14:03:30,692 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) [2024-11-20 14:03:30,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:30,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 749 of 923 [2024-11-20 14:03:30,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:30,860 INFO L124 PetriNetUnfolderBase]: 49/1205 cut-off events. [2024-11-20 14:03:30,860 INFO L125 PetriNetUnfolderBase]: For 2577/2577 co-relation queries the response was YES. [2024-11-20 14:03:30,867 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. [2024-11-20 14:03:30,869 INFO L140 encePairwiseOnDemand]: 917/923 looper letters, 33 selfloop transitions, 2 changer transitions 1/242 dead transitions. [2024-11-20 14:03:30,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 242 transitions, 1155 flow [2024-11-20 14:03:30,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:30,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:30,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2286 transitions. [2024-11-20 14:03:30,871 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8255687973997833 [2024-11-20 14:03:30,871 INFO L175 Difference]: Start difference. First operand has 291 places, 246 transitions, 1093 flow. Second operand 3 states and 2286 transitions. [2024-11-20 14:03:30,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 242 transitions, 1155 flow [2024-11-20 14:03:30,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 242 transitions, 692 flow, removed 231 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:30,876 INFO L231 Difference]: Finished difference. Result has 291 places, 241 transitions, 624 flow [2024-11-20 14:03:30,876 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} [2024-11-20 14:03:30,876 INFO L277 CegarLoopForPetriNet]: 291 programPoint places, 0 predicate places. [2024-11-20 14:03:30,877 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 241 transitions, 624 flow [2024-11-20 14:03:30,877 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) [2024-11-20 14:03:30,877 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:30,877 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] [2024-11-20 14:03:30,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2024-11-20 14:03:30,877 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)] === [2024-11-20 14:03:30,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:30,878 INFO L85 PathProgramCache]: Analyzing trace with hash 21317062, now seen corresponding path program 1 times [2024-11-20 14:03:30,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:30,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027631137] [2024-11-20 14:03:30,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:30,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:30,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:30,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:30,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027631137] [2024-11-20 14:03:30,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027631137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:30,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:30,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:30,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963495005] [2024-11-20 14:03:30,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:30,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:30,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:30,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:30,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:30,958 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 701 out of 923 [2024-11-20 14:03:30,959 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) [2024-11-20 14:03:30,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:30,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 701 of 923 [2024-11-20 14:03:30,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:31,159 INFO L124 PetriNetUnfolderBase]: 25/1081 cut-off events. [2024-11-20 14:03:31,159 INFO L125 PetriNetUnfolderBase]: For 321/321 co-relation queries the response was YES. [2024-11-20 14:03:31,168 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. [2024-11-20 14:03:31,168 INFO L140 encePairwiseOnDemand]: 917/923 looper letters, 31 selfloop transitions, 1 changer transitions 24/236 dead transitions. [2024-11-20 14:03:31,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 236 transitions, 682 flow [2024-11-20 14:03:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:31,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:31,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2142 transitions. [2024-11-20 14:03:31,170 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7735644637053087 [2024-11-20 14:03:31,170 INFO L175 Difference]: Start difference. First operand has 291 places, 241 transitions, 624 flow. Second operand 3 states and 2142 transitions. [2024-11-20 14:03:31,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 236 transitions, 682 flow [2024-11-20 14:03:31,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 236 transitions, 678 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:31,174 INFO L231 Difference]: Finished difference. Result has 285 places, 212 transitions, 562 flow [2024-11-20 14:03:31,174 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} [2024-11-20 14:03:31,174 INFO L277 CegarLoopForPetriNet]: 291 programPoint places, -6 predicate places. [2024-11-20 14:03:31,174 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 212 transitions, 562 flow [2024-11-20 14:03:31,175 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) [2024-11-20 14:03:31,175 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:31,175 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] [2024-11-20 14:03:31,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2024-11-20 14:03:31,175 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)] === [2024-11-20 14:03:31,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:31,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1123160207, now seen corresponding path program 1 times [2024-11-20 14:03:31,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:31,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761578758] [2024-11-20 14:03:31,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:31,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:31,297 INFO L134 CoverageAnalysis]: Checked inductivity of 3726 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 3657 trivial. 0 not checked. [2024-11-20 14:03:31,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:31,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761578758] [2024-11-20 14:03:31,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761578758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:31,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:31,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:31,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266979075] [2024-11-20 14:03:31,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:31,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:31,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:31,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:31,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:31,383 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 770 out of 923 [2024-11-20 14:03:31,385 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) [2024-11-20 14:03:31,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:31,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 770 of 923 [2024-11-20 14:03:31,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:31,523 INFO L124 PetriNetUnfolderBase]: 0/518 cut-off events. [2024-11-20 14:03:31,523 INFO L125 PetriNetUnfolderBase]: For 320/320 co-relation queries the response was YES. [2024-11-20 14:03:31,524 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. [2024-11-20 14:03:31,524 INFO L140 encePairwiseOnDemand]: 918/923 looper letters, 31 selfloop transitions, 2 changer transitions 3/214 dead transitions. [2024-11-20 14:03:31,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 214 transitions, 638 flow [2024-11-20 14:03:31,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:31,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:31,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3887 transitions. [2024-11-20 14:03:31,527 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8422535211267606 [2024-11-20 14:03:31,527 INFO L175 Difference]: Start difference. First operand has 285 places, 212 transitions, 562 flow. Second operand 5 states and 3887 transitions. [2024-11-20 14:03:31,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 214 transitions, 638 flow [2024-11-20 14:03:31,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 214 transitions, 637 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:31,531 INFO L231 Difference]: Finished difference. Result has 265 places, 211 transitions, 567 flow [2024-11-20 14:03:31,531 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} [2024-11-20 14:03:31,531 INFO L277 CegarLoopForPetriNet]: 291 programPoint places, -26 predicate places. [2024-11-20 14:03:31,532 INFO L471 AbstractCegarLoop]: Abstraction has has 265 places, 211 transitions, 567 flow [2024-11-20 14:03:31,532 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) [2024-11-20 14:03:31,532 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:31,533 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] [2024-11-20 14:03:31,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2024-11-20 14:03:31,533 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)] === [2024-11-20 14:03:31,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:31,533 INFO L85 PathProgramCache]: Analyzing trace with hash -2073062007, now seen corresponding path program 1 times [2024-11-20 14:03:31,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:31,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141703290] [2024-11-20 14:03:31,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:31,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:31,573 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:31,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:31,660 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:31,660 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:31,660 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-11-20 14:03:31,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2024-11-20 14:03:31,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2024-11-20 14:03:31,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2024-11-20 14:03:31,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2024-11-20 14:03:31,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2024-11-20 14:03:31,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 31 remaining) [2024-11-20 14:03:31,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2024-11-20 14:03:31,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2024-11-20 14:03:31,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2024-11-20 14:03:31,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2024-11-20 14:03:31,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2024-11-20 14:03:31,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2024-11-20 14:03:31,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2024-11-20 14:03:31,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2024-11-20 14:03:31,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2024-11-20 14:03:31,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2024-11-20 14:03:31,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2024-11-20 14:03:31,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2024-11-20 14:03:31,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2024-11-20 14:03:31,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2024-11-20 14:03:31,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2024-11-20 14:03:31,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2024-11-20 14:03:31,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2024-11-20 14:03:31,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2024-11-20 14:03:31,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2024-11-20 14:03:31,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2024-11-20 14:03:31,664 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2024-11-20 14:03:31,664 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2024-11-20 14:03:31,664 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2024-11-20 14:03:31,664 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2024-11-20 14:03:31,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2024-11-20 14:03:31,664 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:31,665 WARN L244 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:31,665 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2024-11-20 14:03:31,771 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:31,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 959 places, 960 transitions, 3216 flow [2024-11-20 14:03:31,974 INFO L124 PetriNetUnfolderBase]: 127/1631 cut-off events. [2024-11-20 14:03:31,974 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2024-11-20 14:03:31,986 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. [2024-11-20 14:03:31,986 INFO L82 GeneralOperation]: Start removeDead. Operand has 959 places, 960 transitions, 3216 flow [2024-11-20 14:03:31,989 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 300 places, 253 transitions, 1157 flow [2024-11-20 14:03:31,990 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:31,990 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:31,990 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-11-20 14:03:31,991 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:31,991 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:31,991 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:31,991 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:31,991 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:31,991 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)] === [2024-11-20 14:03:31,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:31,992 INFO L85 PathProgramCache]: Analyzing trace with hash 330788611, now seen corresponding path program 1 times [2024-11-20 14:03:31,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:31,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908080452] [2024-11-20 14:03:31,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:31,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:32,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:32,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:32,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908080452] [2024-11-20 14:03:32,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908080452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:32,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:32,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:32,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058572457] [2024-11-20 14:03:32,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:32,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:32,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:32,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:32,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:32,092 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 779 out of 960 [2024-11-20 14:03:32,093 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) [2024-11-20 14:03:32,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:32,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 779 of 960 [2024-11-20 14:03:32,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:32,367 INFO L124 PetriNetUnfolderBase]: 51/1254 cut-off events. [2024-11-20 14:03:32,367 INFO L125 PetriNetUnfolderBase]: For 2901/2901 co-relation queries the response was YES. [2024-11-20 14:03:32,373 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. [2024-11-20 14:03:32,375 INFO L140 encePairwiseOnDemand]: 954/960 looper letters, 34 selfloop transitions, 2 changer transitions 1/249 dead transitions. [2024-11-20 14:03:32,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 249 transitions, 1221 flow [2024-11-20 14:03:32,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:32,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:32,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2377 transitions. [2024-11-20 14:03:32,378 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8253472222222222 [2024-11-20 14:03:32,378 INFO L175 Difference]: Start difference. First operand has 300 places, 253 transitions, 1157 flow. Second operand 3 states and 2377 transitions. [2024-11-20 14:03:32,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 249 transitions, 1221 flow [2024-11-20 14:03:32,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 249 transitions, 714 flow, removed 253 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:32,386 INFO L231 Difference]: Finished difference. Result has 300 places, 248 transitions, 644 flow [2024-11-20 14:03:32,386 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} [2024-11-20 14:03:32,386 INFO L277 CegarLoopForPetriNet]: 300 programPoint places, 0 predicate places. [2024-11-20 14:03:32,386 INFO L471 AbstractCegarLoop]: Abstraction has has 300 places, 248 transitions, 644 flow [2024-11-20 14:03:32,387 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) [2024-11-20 14:03:32,387 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:32,387 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] [2024-11-20 14:03:32,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2024-11-20 14:03:32,387 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)] === [2024-11-20 14:03:32,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:32,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1805388346, now seen corresponding path program 1 times [2024-11-20 14:03:32,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:32,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648090046] [2024-11-20 14:03:32,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:32,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:32,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:32,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:32,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648090046] [2024-11-20 14:03:32,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648090046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:32,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:32,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:32,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190423747] [2024-11-20 14:03:32,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:32,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:32,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:32,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:32,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:32,491 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 729 out of 960 [2024-11-20 14:03:32,493 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) [2024-11-20 14:03:32,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:32,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 729 of 960 [2024-11-20 14:03:32,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:32,738 INFO L124 PetriNetUnfolderBase]: 26/1125 cut-off events. [2024-11-20 14:03:32,739 INFO L125 PetriNetUnfolderBase]: For 347/347 co-relation queries the response was YES. [2024-11-20 14:03:32,746 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. [2024-11-20 14:03:32,747 INFO L140 encePairwiseOnDemand]: 954/960 looper letters, 32 selfloop transitions, 1 changer transitions 24/243 dead transitions. [2024-11-20 14:03:32,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 243 transitions, 704 flow [2024-11-20 14:03:32,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:32,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:32,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2227 transitions. [2024-11-20 14:03:32,749 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7732638888888889 [2024-11-20 14:03:32,749 INFO L175 Difference]: Start difference. First operand has 300 places, 248 transitions, 644 flow. Second operand 3 states and 2227 transitions. [2024-11-20 14:03:32,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 243 transitions, 704 flow [2024-11-20 14:03:32,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 243 transitions, 700 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:32,754 INFO L231 Difference]: Finished difference. Result has 294 places, 219 transitions, 582 flow [2024-11-20 14:03:32,754 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} [2024-11-20 14:03:32,755 INFO L277 CegarLoopForPetriNet]: 300 programPoint places, -6 predicate places. [2024-11-20 14:03:32,755 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 219 transitions, 582 flow [2024-11-20 14:03:32,755 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) [2024-11-20 14:03:32,755 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:32,756 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] [2024-11-20 14:03:32,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2024-11-20 14:03:32,756 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)] === [2024-11-20 14:03:32,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:32,756 INFO L85 PathProgramCache]: Analyzing trace with hash 2111759371, now seen corresponding path program 1 times [2024-11-20 14:03:32,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:32,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135408525] [2024-11-20 14:03:32,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:32,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:32,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:32,933 INFO L134 CoverageAnalysis]: Checked inductivity of 4056 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 3984 trivial. 0 not checked. [2024-11-20 14:03:32,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:32,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135408525] [2024-11-20 14:03:32,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135408525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:32,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:32,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:32,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358506009] [2024-11-20 14:03:32,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:32,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:32,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:32,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:32,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:33,018 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 801 out of 960 [2024-11-20 14:03:33,021 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) [2024-11-20 14:03:33,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:33,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 801 of 960 [2024-11-20 14:03:33,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:33,238 INFO L124 PetriNetUnfolderBase]: 0/538 cut-off events. [2024-11-20 14:03:33,239 INFO L125 PetriNetUnfolderBase]: For 346/346 co-relation queries the response was YES. [2024-11-20 14:03:33,239 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. [2024-11-20 14:03:33,243 INFO L140 encePairwiseOnDemand]: 955/960 looper letters, 32 selfloop transitions, 2 changer transitions 3/221 dead transitions. [2024-11-20 14:03:33,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 221 transitions, 660 flow [2024-11-20 14:03:33,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:33,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:33,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4043 transitions. [2024-11-20 14:03:33,249 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8422916666666667 [2024-11-20 14:03:33,249 INFO L175 Difference]: Start difference. First operand has 294 places, 219 transitions, 582 flow. Second operand 5 states and 4043 transitions. [2024-11-20 14:03:33,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 221 transitions, 660 flow [2024-11-20 14:03:33,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 221 transitions, 659 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:33,257 INFO L231 Difference]: Finished difference. Result has 274 places, 218 transitions, 587 flow [2024-11-20 14:03:33,257 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} [2024-11-20 14:03:33,258 INFO L277 CegarLoopForPetriNet]: 300 programPoint places, -26 predicate places. [2024-11-20 14:03:33,258 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 218 transitions, 587 flow [2024-11-20 14:03:33,258 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) [2024-11-20 14:03:33,258 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:33,259 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] [2024-11-20 14:03:33,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2024-11-20 14:03:33,259 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)] === [2024-11-20 14:03:33,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:33,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1489872955, now seen corresponding path program 1 times [2024-11-20 14:03:33,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:33,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802699857] [2024-11-20 14:03:33,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:33,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:33,351 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:33,450 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:33,450 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:33,450 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 32 remaining) [2024-11-20 14:03:33,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (30 of 32 remaining) [2024-11-20 14:03:33,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (29 of 32 remaining) [2024-11-20 14:03:33,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (28 of 32 remaining) [2024-11-20 14:03:33,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (27 of 32 remaining) [2024-11-20 14:03:33,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (26 of 32 remaining) [2024-11-20 14:03:33,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 32 remaining) [2024-11-20 14:03:33,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 32 remaining) [2024-11-20 14:03:33,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 32 remaining) [2024-11-20 14:03:33,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 32 remaining) [2024-11-20 14:03:33,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 32 remaining) [2024-11-20 14:03:33,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 32 remaining) [2024-11-20 14:03:33,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 32 remaining) [2024-11-20 14:03:33,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 32 remaining) [2024-11-20 14:03:33,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 32 remaining) [2024-11-20 14:03:33,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 32 remaining) [2024-11-20 14:03:33,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 32 remaining) [2024-11-20 14:03:33,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 32 remaining) [2024-11-20 14:03:33,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 32 remaining) [2024-11-20 14:03:33,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 32 remaining) [2024-11-20 14:03:33,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 32 remaining) [2024-11-20 14:03:33,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 32 remaining) [2024-11-20 14:03:33,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 32 remaining) [2024-11-20 14:03:33,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 32 remaining) [2024-11-20 14:03:33,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 32 remaining) [2024-11-20 14:03:33,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 32 remaining) [2024-11-20 14:03:33,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 32 remaining) [2024-11-20 14:03:33,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 32 remaining) [2024-11-20 14:03:33,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 32 remaining) [2024-11-20 14:03:33,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 32 remaining) [2024-11-20 14:03:33,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 32 remaining) [2024-11-20 14:03:33,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 32 remaining) [2024-11-20 14:03:33,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2024-11-20 14:03:33,453 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:33,453 WARN L244 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:33,453 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2024-11-20 14:03:33,562 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:33,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 996 places, 997 transitions, 3394 flow [2024-11-20 14:03:33,827 INFO L124 PetriNetUnfolderBase]: 132/1695 cut-off events. [2024-11-20 14:03:33,828 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2024-11-20 14:03:33,849 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. [2024-11-20 14:03:33,850 INFO L82 GeneralOperation]: Start removeDead. Operand has 996 places, 997 transitions, 3394 flow [2024-11-20 14:03:33,854 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 309 places, 260 transitions, 1223 flow [2024-11-20 14:03:33,854 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:33,855 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:33,855 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-11-20 14:03:33,856 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:33,856 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:33,856 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:33,856 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:33,856 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:33,856 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)] === [2024-11-20 14:03:33,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:33,857 INFO L85 PathProgramCache]: Analyzing trace with hash 638120963, now seen corresponding path program 1 times [2024-11-20 14:03:33,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:33,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931490068] [2024-11-20 14:03:33,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:33,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:33,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:33,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:33,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931490068] [2024-11-20 14:03:33,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931490068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:33,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:33,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:33,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947581217] [2024-11-20 14:03:33,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:33,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:33,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:33,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:33,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:33,982 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 809 out of 997 [2024-11-20 14:03:33,983 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) [2024-11-20 14:03:33,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:33,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 809 of 997 [2024-11-20 14:03:33,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:34,180 INFO L124 PetriNetUnfolderBase]: 53/1303 cut-off events. [2024-11-20 14:03:34,180 INFO L125 PetriNetUnfolderBase]: For 3251/3251 co-relation queries the response was YES. [2024-11-20 14:03:34,189 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. [2024-11-20 14:03:34,191 INFO L140 encePairwiseOnDemand]: 991/997 looper letters, 35 selfloop transitions, 2 changer transitions 1/256 dead transitions. [2024-11-20 14:03:34,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 256 transitions, 1289 flow [2024-11-20 14:03:34,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:34,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:34,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2468 transitions. [2024-11-20 14:03:34,193 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8251420929455032 [2024-11-20 14:03:34,193 INFO L175 Difference]: Start difference. First operand has 309 places, 260 transitions, 1223 flow. Second operand 3 states and 2468 transitions. [2024-11-20 14:03:34,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 256 transitions, 1289 flow [2024-11-20 14:03:34,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 256 transitions, 736 flow, removed 276 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:34,200 INFO L231 Difference]: Finished difference. Result has 309 places, 255 transitions, 664 flow [2024-11-20 14:03:34,200 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} [2024-11-20 14:03:34,201 INFO L277 CegarLoopForPetriNet]: 309 programPoint places, 0 predicate places. [2024-11-20 14:03:34,201 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 255 transitions, 664 flow [2024-11-20 14:03:34,201 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) [2024-11-20 14:03:34,201 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:34,201 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] [2024-11-20 14:03:34,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2024-11-20 14:03:34,202 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)] === [2024-11-20 14:03:34,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:34,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1782533126, now seen corresponding path program 1 times [2024-11-20 14:03:34,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:34,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284435586] [2024-11-20 14:03:34,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:34,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:34,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:34,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:34,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284435586] [2024-11-20 14:03:34,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284435586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:34,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:34,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:34,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668204000] [2024-11-20 14:03:34,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:34,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:34,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:34,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:34,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:34,291 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 757 out of 997 [2024-11-20 14:03:34,291 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) [2024-11-20 14:03:34,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:34,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 757 of 997 [2024-11-20 14:03:34,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:34,634 INFO L124 PetriNetUnfolderBase]: 27/1169 cut-off events. [2024-11-20 14:03:34,634 INFO L125 PetriNetUnfolderBase]: For 374/374 co-relation queries the response was YES. [2024-11-20 14:03:34,640 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. [2024-11-20 14:03:34,640 INFO L140 encePairwiseOnDemand]: 991/997 looper letters, 33 selfloop transitions, 1 changer transitions 24/250 dead transitions. [2024-11-20 14:03:34,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 250 transitions, 726 flow [2024-11-20 14:03:34,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:34,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:34,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2312 transitions. [2024-11-20 14:03:34,642 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7729856235372785 [2024-11-20 14:03:34,642 INFO L175 Difference]: Start difference. First operand has 309 places, 255 transitions, 664 flow. Second operand 3 states and 2312 transitions. [2024-11-20 14:03:34,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 250 transitions, 726 flow [2024-11-20 14:03:34,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 250 transitions, 722 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:34,644 INFO L231 Difference]: Finished difference. Result has 303 places, 226 transitions, 602 flow [2024-11-20 14:03:34,645 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} [2024-11-20 14:03:34,645 INFO L277 CegarLoopForPetriNet]: 309 programPoint places, -6 predicate places. [2024-11-20 14:03:34,645 INFO L471 AbstractCegarLoop]: Abstraction has has 303 places, 226 transitions, 602 flow [2024-11-20 14:03:34,645 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) [2024-11-20 14:03:34,645 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:34,646 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] [2024-11-20 14:03:34,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2024-11-20 14:03:34,646 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)] === [2024-11-20 14:03:34,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:34,646 INFO L85 PathProgramCache]: Analyzing trace with hash -609882093, now seen corresponding path program 1 times [2024-11-20 14:03:34,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:34,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011397987] [2024-11-20 14:03:34,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:34,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:34,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4400 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 4325 trivial. 0 not checked. [2024-11-20 14:03:34,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:34,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011397987] [2024-11-20 14:03:34,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011397987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:34,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:34,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:34,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660284450] [2024-11-20 14:03:34,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:34,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:34,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:34,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:34,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:34,867 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 832 out of 997 [2024-11-20 14:03:34,869 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) [2024-11-20 14:03:34,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:34,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 832 of 997 [2024-11-20 14:03:34,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:34,999 INFO L124 PetriNetUnfolderBase]: 0/558 cut-off events. [2024-11-20 14:03:34,999 INFO L125 PetriNetUnfolderBase]: For 373/373 co-relation queries the response was YES. [2024-11-20 14:03:34,999 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. [2024-11-20 14:03:35,000 INFO L140 encePairwiseOnDemand]: 992/997 looper letters, 33 selfloop transitions, 2 changer transitions 3/228 dead transitions. [2024-11-20 14:03:35,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 228 transitions, 682 flow [2024-11-20 14:03:35,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:35,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:35,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4199 transitions. [2024-11-20 14:03:35,002 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8423269809428285 [2024-11-20 14:03:35,002 INFO L175 Difference]: Start difference. First operand has 303 places, 226 transitions, 602 flow. Second operand 5 states and 4199 transitions. [2024-11-20 14:03:35,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 228 transitions, 682 flow [2024-11-20 14:03:35,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 228 transitions, 681 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:35,004 INFO L231 Difference]: Finished difference. Result has 283 places, 225 transitions, 607 flow [2024-11-20 14:03:35,004 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} [2024-11-20 14:03:35,005 INFO L277 CegarLoopForPetriNet]: 309 programPoint places, -26 predicate places. [2024-11-20 14:03:35,005 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 225 transitions, 607 flow [2024-11-20 14:03:35,005 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) [2024-11-20 14:03:35,005 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:35,005 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] [2024-11-20 14:03:35,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2024-11-20 14:03:35,006 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)] === [2024-11-20 14:03:35,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:35,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1314317160, now seen corresponding path program 1 times [2024-11-20 14:03:35,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:35,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975545362] [2024-11-20 14:03:35,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:35,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:35,042 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:35,141 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:35,141 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:35,141 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2024-11-20 14:03:35,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2024-11-20 14:03:35,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2024-11-20 14:03:35,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2024-11-20 14:03:35,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2024-11-20 14:03:35,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2024-11-20 14:03:35,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 33 remaining) [2024-11-20 14:03:35,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2024-11-20 14:03:35,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2024-11-20 14:03:35,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2024-11-20 14:03:35,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2024-11-20 14:03:35,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2024-11-20 14:03:35,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2024-11-20 14:03:35,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2024-11-20 14:03:35,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2024-11-20 14:03:35,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2024-11-20 14:03:35,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2024-11-20 14:03:35,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2024-11-20 14:03:35,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2024-11-20 14:03:35,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2024-11-20 14:03:35,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2024-11-20 14:03:35,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2024-11-20 14:03:35,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2024-11-20 14:03:35,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2024-11-20 14:03:35,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2024-11-20 14:03:35,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2024-11-20 14:03:35,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2024-11-20 14:03:35,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2024-11-20 14:03:35,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2024-11-20 14:03:35,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2024-11-20 14:03:35,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2024-11-20 14:03:35,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2024-11-20 14:03:35,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2024-11-20 14:03:35,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2024-11-20 14:03:35,148 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:35,149 WARN L244 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:35,149 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2024-11-20 14:03:35,246 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:35,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1033 places, 1034 transitions, 3576 flow [2024-11-20 14:03:35,487 INFO L124 PetriNetUnfolderBase]: 137/1759 cut-off events. [2024-11-20 14:03:35,488 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2024-11-20 14:03:35,502 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. [2024-11-20 14:03:35,502 INFO L82 GeneralOperation]: Start removeDead. Operand has 1033 places, 1034 transitions, 3576 flow [2024-11-20 14:03:35,505 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 318 places, 267 transitions, 1291 flow [2024-11-20 14:03:35,506 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:35,506 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:35,506 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-11-20 14:03:35,507 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:35,507 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:35,507 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:35,507 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:35,507 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:35,507 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)] === [2024-11-20 14:03:35,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:35,507 INFO L85 PathProgramCache]: Analyzing trace with hash 896548355, now seen corresponding path program 1 times [2024-11-20 14:03:35,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:35,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123607322] [2024-11-20 14:03:35,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:35,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:35,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:35,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:35,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123607322] [2024-11-20 14:03:35,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123607322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:35,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:35,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:35,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215671589] [2024-11-20 14:03:35,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:35,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:35,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:35,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:35,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:35,613 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 839 out of 1034 [2024-11-20 14:03:35,614 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) [2024-11-20 14:03:35,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:35,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 839 of 1034 [2024-11-20 14:03:35,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:35,830 INFO L124 PetriNetUnfolderBase]: 55/1352 cut-off events. [2024-11-20 14:03:35,830 INFO L125 PetriNetUnfolderBase]: For 3628/3628 co-relation queries the response was YES. [2024-11-20 14:03:35,840 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. [2024-11-20 14:03:35,842 INFO L140 encePairwiseOnDemand]: 1028/1034 looper letters, 36 selfloop transitions, 2 changer transitions 1/263 dead transitions. [2024-11-20 14:03:35,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 263 transitions, 1359 flow [2024-11-20 14:03:35,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:35,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:35,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2559 transitions. [2024-11-20 14:03:35,844 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8249516441005803 [2024-11-20 14:03:35,844 INFO L175 Difference]: Start difference. First operand has 318 places, 267 transitions, 1291 flow. Second operand 3 states and 2559 transitions. [2024-11-20 14:03:35,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 263 transitions, 1359 flow [2024-11-20 14:03:35,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 263 transitions, 758 flow, removed 300 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:35,850 INFO L231 Difference]: Finished difference. Result has 318 places, 262 transitions, 684 flow [2024-11-20 14:03:35,850 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} [2024-11-20 14:03:35,850 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, 0 predicate places. [2024-11-20 14:03:35,851 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 262 transitions, 684 flow [2024-11-20 14:03:35,851 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) [2024-11-20 14:03:35,851 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:35,851 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] [2024-11-20 14:03:35,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2024-11-20 14:03:35,851 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)] === [2024-11-20 14:03:35,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:35,851 INFO L85 PathProgramCache]: Analyzing trace with hash -2099820410, now seen corresponding path program 1 times [2024-11-20 14:03:35,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:35,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854999835] [2024-11-20 14:03:35,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:35,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:35,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:35,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:35,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854999835] [2024-11-20 14:03:35,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854999835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:35,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:35,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:35,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42919420] [2024-11-20 14:03:35,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:35,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:35,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:35,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:35,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:35,931 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 785 out of 1034 [2024-11-20 14:03:35,932 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) [2024-11-20 14:03:35,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:35,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 785 of 1034 [2024-11-20 14:03:35,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:36,119 INFO L124 PetriNetUnfolderBase]: 28/1213 cut-off events. [2024-11-20 14:03:36,119 INFO L125 PetriNetUnfolderBase]: For 402/402 co-relation queries the response was YES. [2024-11-20 14:03:36,126 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. [2024-11-20 14:03:36,127 INFO L140 encePairwiseOnDemand]: 1028/1034 looper letters, 34 selfloop transitions, 1 changer transitions 24/257 dead transitions. [2024-11-20 14:03:36,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 257 transitions, 748 flow [2024-11-20 14:03:36,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:36,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:36,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2397 transitions. [2024-11-20 14:03:36,129 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2024-11-20 14:03:36,129 INFO L175 Difference]: Start difference. First operand has 318 places, 262 transitions, 684 flow. Second operand 3 states and 2397 transitions. [2024-11-20 14:03:36,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 257 transitions, 748 flow [2024-11-20 14:03:36,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 257 transitions, 744 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:36,133 INFO L231 Difference]: Finished difference. Result has 312 places, 233 transitions, 622 flow [2024-11-20 14:03:36,133 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} [2024-11-20 14:03:36,133 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, -6 predicate places. [2024-11-20 14:03:36,133 INFO L471 AbstractCegarLoop]: Abstraction has has 312 places, 233 transitions, 622 flow [2024-11-20 14:03:36,134 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) [2024-11-20 14:03:36,134 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:36,134 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] [2024-11-20 14:03:36,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2024-11-20 14:03:36,134 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)] === [2024-11-20 14:03:36,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:36,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1991235079, now seen corresponding path program 1 times [2024-11-20 14:03:36,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:36,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763594862] [2024-11-20 14:03:36,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:36,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:36,338 INFO L134 CoverageAnalysis]: Checked inductivity of 4758 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 4680 trivial. 0 not checked. [2024-11-20 14:03:36,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:36,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763594862] [2024-11-20 14:03:36,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763594862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:36,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:36,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:36,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036834006] [2024-11-20 14:03:36,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:36,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:36,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:36,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:36,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:36,432 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 863 out of 1034 [2024-11-20 14:03:36,433 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) [2024-11-20 14:03:36,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:36,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 863 of 1034 [2024-11-20 14:03:36,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:36,536 INFO L124 PetriNetUnfolderBase]: 0/578 cut-off events. [2024-11-20 14:03:36,536 INFO L125 PetriNetUnfolderBase]: For 401/401 co-relation queries the response was YES. [2024-11-20 14:03:36,536 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. [2024-11-20 14:03:36,537 INFO L140 encePairwiseOnDemand]: 1029/1034 looper letters, 34 selfloop transitions, 2 changer transitions 3/235 dead transitions. [2024-11-20 14:03:36,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 235 transitions, 704 flow [2024-11-20 14:03:36,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:36,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:36,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4355 transitions. [2024-11-20 14:03:36,540 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8423597678916828 [2024-11-20 14:03:36,540 INFO L175 Difference]: Start difference. First operand has 312 places, 233 transitions, 622 flow. Second operand 5 states and 4355 transitions. [2024-11-20 14:03:36,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 235 transitions, 704 flow [2024-11-20 14:03:36,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 235 transitions, 703 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:36,544 INFO L231 Difference]: Finished difference. Result has 292 places, 232 transitions, 627 flow [2024-11-20 14:03:36,544 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} [2024-11-20 14:03:36,545 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, -26 predicate places. [2024-11-20 14:03:36,546 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 232 transitions, 627 flow [2024-11-20 14:03:36,546 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) [2024-11-20 14:03:36,546 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:36,546 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] [2024-11-20 14:03:36,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2024-11-20 14:03:36,547 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)] === [2024-11-20 14:03:36,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:36,547 INFO L85 PathProgramCache]: Analyzing trace with hash -2037282798, now seen corresponding path program 1 times [2024-11-20 14:03:36,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:36,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85853916] [2024-11-20 14:03:36,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:36,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:36,604 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:36,705 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:36,705 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:36,705 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 34 remaining) [2024-11-20 14:03:36,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (32 of 34 remaining) [2024-11-20 14:03:36,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (31 of 34 remaining) [2024-11-20 14:03:36,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (30 of 34 remaining) [2024-11-20 14:03:36,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (29 of 34 remaining) [2024-11-20 14:03:36,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (28 of 34 remaining) [2024-11-20 14:03:36,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 34 remaining) [2024-11-20 14:03:36,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 34 remaining) [2024-11-20 14:03:36,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 34 remaining) [2024-11-20 14:03:36,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 34 remaining) [2024-11-20 14:03:36,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 34 remaining) [2024-11-20 14:03:36,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 34 remaining) [2024-11-20 14:03:36,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 34 remaining) [2024-11-20 14:03:36,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 34 remaining) [2024-11-20 14:03:36,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 34 remaining) [2024-11-20 14:03:36,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 34 remaining) [2024-11-20 14:03:36,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 34 remaining) [2024-11-20 14:03:36,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 34 remaining) [2024-11-20 14:03:36,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 34 remaining) [2024-11-20 14:03:36,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 34 remaining) [2024-11-20 14:03:36,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 34 remaining) [2024-11-20 14:03:36,708 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 34 remaining) [2024-11-20 14:03:36,708 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 34 remaining) [2024-11-20 14:03:36,708 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 34 remaining) [2024-11-20 14:03:36,708 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 34 remaining) [2024-11-20 14:03:36,708 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 34 remaining) [2024-11-20 14:03:36,708 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 34 remaining) [2024-11-20 14:03:36,708 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 34 remaining) [2024-11-20 14:03:36,708 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 34 remaining) [2024-11-20 14:03:36,708 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 34 remaining) [2024-11-20 14:03:36,708 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 34 remaining) [2024-11-20 14:03:36,709 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 34 remaining) [2024-11-20 14:03:36,709 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 34 remaining) [2024-11-20 14:03:36,709 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 34 remaining) [2024-11-20 14:03:36,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2024-11-20 14:03:36,709 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:36,709 WARN L244 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:36,709 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2024-11-20 14:03:36,827 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:36,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1070 places, 1071 transitions, 3762 flow [2024-11-20 14:03:37,081 INFO L124 PetriNetUnfolderBase]: 142/1823 cut-off events. [2024-11-20 14:03:37,081 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2024-11-20 14:03:37,097 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. [2024-11-20 14:03:37,097 INFO L82 GeneralOperation]: Start removeDead. Operand has 1070 places, 1071 transitions, 3762 flow [2024-11-20 14:03:37,100 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 327 places, 274 transitions, 1361 flow [2024-11-20 14:03:37,101 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:37,101 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:37,101 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-11-20 14:03:37,102 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:37,102 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:37,102 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:37,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:37,102 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:37,102 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)] === [2024-11-20 14:03:37,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:37,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1106070787, now seen corresponding path program 1 times [2024-11-20 14:03:37,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:37,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659114801] [2024-11-20 14:03:37,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:37,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:37,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:37,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:37,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659114801] [2024-11-20 14:03:37,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659114801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:37,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:37,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:37,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378017899] [2024-11-20 14:03:37,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:37,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:37,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:37,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:37,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:37,204 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 869 out of 1071 [2024-11-20 14:03:37,205 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) [2024-11-20 14:03:37,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:37,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 869 of 1071 [2024-11-20 14:03:37,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:37,428 INFO L124 PetriNetUnfolderBase]: 57/1401 cut-off events. [2024-11-20 14:03:37,428 INFO L125 PetriNetUnfolderBase]: For 4033/4033 co-relation queries the response was YES. [2024-11-20 14:03:37,439 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. [2024-11-20 14:03:37,441 INFO L140 encePairwiseOnDemand]: 1065/1071 looper letters, 37 selfloop transitions, 2 changer transitions 1/270 dead transitions. [2024-11-20 14:03:37,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 270 transitions, 1431 flow [2024-11-20 14:03:37,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:37,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:37,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2650 transitions. [2024-11-20 14:03:37,443 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8247743541861189 [2024-11-20 14:03:37,443 INFO L175 Difference]: Start difference. First operand has 327 places, 274 transitions, 1361 flow. Second operand 3 states and 2650 transitions. [2024-11-20 14:03:37,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 270 transitions, 1431 flow [2024-11-20 14:03:37,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 270 transitions, 780 flow, removed 325 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:37,450 INFO L231 Difference]: Finished difference. Result has 327 places, 269 transitions, 704 flow [2024-11-20 14:03:37,450 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} [2024-11-20 14:03:37,450 INFO L277 CegarLoopForPetriNet]: 327 programPoint places, 0 predicate places. [2024-11-20 14:03:37,450 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 269 transitions, 704 flow [2024-11-20 14:03:37,451 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) [2024-11-20 14:03:37,451 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:37,451 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] [2024-11-20 14:03:37,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2024-11-20 14:03:37,451 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)] === [2024-11-20 14:03:37,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:37,451 INFO L85 PathProgramCache]: Analyzing trace with hash -567547066, now seen corresponding path program 1 times [2024-11-20 14:03:37,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:37,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70652525] [2024-11-20 14:03:37,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:37,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:37,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:37,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:37,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70652525] [2024-11-20 14:03:37,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70652525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:37,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:37,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:37,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572127767] [2024-11-20 14:03:37,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:37,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:37,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:37,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:37,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:37,539 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 813 out of 1071 [2024-11-20 14:03:37,540 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) [2024-11-20 14:03:37,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:37,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 813 of 1071 [2024-11-20 14:03:37,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:37,749 INFO L124 PetriNetUnfolderBase]: 29/1257 cut-off events. [2024-11-20 14:03:37,749 INFO L125 PetriNetUnfolderBase]: For 431/431 co-relation queries the response was YES. [2024-11-20 14:03:37,759 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. [2024-11-20 14:03:37,761 INFO L140 encePairwiseOnDemand]: 1065/1071 looper letters, 35 selfloop transitions, 1 changer transitions 24/264 dead transitions. [2024-11-20 14:03:37,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 264 transitions, 770 flow [2024-11-20 14:03:37,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:37,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:37,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2482 transitions. [2024-11-20 14:03:37,762 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7724867724867724 [2024-11-20 14:03:37,762 INFO L175 Difference]: Start difference. First operand has 327 places, 269 transitions, 704 flow. Second operand 3 states and 2482 transitions. [2024-11-20 14:03:37,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 264 transitions, 770 flow [2024-11-20 14:03:37,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 264 transitions, 766 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:37,765 INFO L231 Difference]: Finished difference. Result has 321 places, 240 transitions, 642 flow [2024-11-20 14:03:37,766 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} [2024-11-20 14:03:37,766 INFO L277 CegarLoopForPetriNet]: 327 programPoint places, -6 predicate places. [2024-11-20 14:03:37,766 INFO L471 AbstractCegarLoop]: Abstraction has has 321 places, 240 transitions, 642 flow [2024-11-20 14:03:37,766 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) [2024-11-20 14:03:37,766 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:37,766 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] [2024-11-20 14:03:37,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2024-11-20 14:03:37,767 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)] === [2024-11-20 14:03:37,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:37,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1786382521, now seen corresponding path program 1 times [2024-11-20 14:03:37,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:37,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333564131] [2024-11-20 14:03:37,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:37,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:38,007 INFO L134 CoverageAnalysis]: Checked inductivity of 5130 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 5049 trivial. 0 not checked. [2024-11-20 14:03:38,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:38,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333564131] [2024-11-20 14:03:38,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333564131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:38,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:38,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:38,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076522825] [2024-11-20 14:03:38,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:38,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:38,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:38,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:38,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:38,103 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 894 out of 1071 [2024-11-20 14:03:38,105 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) [2024-11-20 14:03:38,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:38,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 894 of 1071 [2024-11-20 14:03:38,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:38,231 INFO L124 PetriNetUnfolderBase]: 0/598 cut-off events. [2024-11-20 14:03:38,231 INFO L125 PetriNetUnfolderBase]: For 430/430 co-relation queries the response was YES. [2024-11-20 14:03:38,231 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. [2024-11-20 14:03:38,232 INFO L140 encePairwiseOnDemand]: 1066/1071 looper letters, 35 selfloop transitions, 2 changer transitions 3/242 dead transitions. [2024-11-20 14:03:38,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 242 transitions, 726 flow [2024-11-20 14:03:38,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:38,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:38,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4511 transitions. [2024-11-20 14:03:38,233 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.842390289449113 [2024-11-20 14:03:38,234 INFO L175 Difference]: Start difference. First operand has 321 places, 240 transitions, 642 flow. Second operand 5 states and 4511 transitions. [2024-11-20 14:03:38,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 242 transitions, 726 flow [2024-11-20 14:03:38,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 242 transitions, 725 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:38,236 INFO L231 Difference]: Finished difference. Result has 301 places, 239 transitions, 647 flow [2024-11-20 14:03:38,236 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} [2024-11-20 14:03:38,237 INFO L277 CegarLoopForPetriNet]: 327 programPoint places, -26 predicate places. [2024-11-20 14:03:38,237 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 239 transitions, 647 flow [2024-11-20 14:03:38,237 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) [2024-11-20 14:03:38,237 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:38,237 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] [2024-11-20 14:03:38,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2024-11-20 14:03:38,237 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)] === [2024-11-20 14:03:38,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:38,238 INFO L85 PathProgramCache]: Analyzing trace with hash -262441629, now seen corresponding path program 1 times [2024-11-20 14:03:38,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:38,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265928669] [2024-11-20 14:03:38,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:38,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:38,280 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:38,384 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:38,384 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:38,384 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 35 remaining) [2024-11-20 14:03:38,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 35 remaining) [2024-11-20 14:03:38,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 35 remaining) [2024-11-20 14:03:38,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 35 remaining) [2024-11-20 14:03:38,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 35 remaining) [2024-11-20 14:03:38,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 35 remaining) [2024-11-20 14:03:38,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 35 remaining) [2024-11-20 14:03:38,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 35 remaining) [2024-11-20 14:03:38,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 35 remaining) [2024-11-20 14:03:38,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 35 remaining) [2024-11-20 14:03:38,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 35 remaining) [2024-11-20 14:03:38,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 35 remaining) [2024-11-20 14:03:38,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 35 remaining) [2024-11-20 14:03:38,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 35 remaining) [2024-11-20 14:03:38,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 35 remaining) [2024-11-20 14:03:38,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 35 remaining) [2024-11-20 14:03:38,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 35 remaining) [2024-11-20 14:03:38,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 35 remaining) [2024-11-20 14:03:38,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 35 remaining) [2024-11-20 14:03:38,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 35 remaining) [2024-11-20 14:03:38,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 35 remaining) [2024-11-20 14:03:38,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 35 remaining) [2024-11-20 14:03:38,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 35 remaining) [2024-11-20 14:03:38,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 35 remaining) [2024-11-20 14:03:38,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 35 remaining) [2024-11-20 14:03:38,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 35 remaining) [2024-11-20 14:03:38,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 35 remaining) [2024-11-20 14:03:38,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 35 remaining) [2024-11-20 14:03:38,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 35 remaining) [2024-11-20 14:03:38,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 35 remaining) [2024-11-20 14:03:38,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 35 remaining) [2024-11-20 14:03:38,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 35 remaining) [2024-11-20 14:03:38,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 35 remaining) [2024-11-20 14:03:38,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 35 remaining) [2024-11-20 14:03:38,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 35 remaining) [2024-11-20 14:03:38,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2024-11-20 14:03:38,387 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:38,387 WARN L244 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:38,387 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2024-11-20 14:03:38,495 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:38,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1107 places, 1108 transitions, 3952 flow [2024-11-20 14:03:38,782 INFO L124 PetriNetUnfolderBase]: 147/1887 cut-off events. [2024-11-20 14:03:38,782 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2024-11-20 14:03:38,799 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. [2024-11-20 14:03:38,799 INFO L82 GeneralOperation]: Start removeDead. Operand has 1107 places, 1108 transitions, 3952 flow [2024-11-20 14:03:38,802 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 336 places, 281 transitions, 1433 flow [2024-11-20 14:03:38,803 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:38,803 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:38,803 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-11-20 14:03:38,804 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:38,804 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:38,804 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:38,804 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:38,804 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:38,804 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)] === [2024-11-20 14:03:38,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:38,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1266688259, now seen corresponding path program 1 times [2024-11-20 14:03:38,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:38,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317116259] [2024-11-20 14:03:38,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:38,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:38,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:38,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:38,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317116259] [2024-11-20 14:03:38,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317116259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:38,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:38,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:38,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857323508] [2024-11-20 14:03:38,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:38,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:38,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:38,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:38,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:38,924 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 899 out of 1108 [2024-11-20 14:03:38,925 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) [2024-11-20 14:03:38,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:38,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 899 of 1108 [2024-11-20 14:03:38,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:39,159 INFO L124 PetriNetUnfolderBase]: 59/1450 cut-off events. [2024-11-20 14:03:39,159 INFO L125 PetriNetUnfolderBase]: For 4467/4467 co-relation queries the response was YES. [2024-11-20 14:03:39,171 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. [2024-11-20 14:03:39,173 INFO L140 encePairwiseOnDemand]: 1102/1108 looper letters, 38 selfloop transitions, 2 changer transitions 1/277 dead transitions. [2024-11-20 14:03:39,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 277 transitions, 1505 flow [2024-11-20 14:03:39,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:39,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:39,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2741 transitions. [2024-11-20 14:03:39,175 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8246089049338147 [2024-11-20 14:03:39,175 INFO L175 Difference]: Start difference. First operand has 336 places, 281 transitions, 1433 flow. Second operand 3 states and 2741 transitions. [2024-11-20 14:03:39,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 277 transitions, 1505 flow [2024-11-20 14:03:39,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 277 transitions, 802 flow, removed 351 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:39,182 INFO L231 Difference]: Finished difference. Result has 336 places, 276 transitions, 724 flow [2024-11-20 14:03:39,182 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} [2024-11-20 14:03:39,183 INFO L277 CegarLoopForPetriNet]: 336 programPoint places, 0 predicate places. [2024-11-20 14:03:39,183 INFO L471 AbstractCegarLoop]: Abstraction has has 336 places, 276 transitions, 724 flow [2024-11-20 14:03:39,183 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) [2024-11-20 14:03:39,183 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:39,183 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] [2024-11-20 14:03:39,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2024-11-20 14:03:39,183 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)] === [2024-11-20 14:03:39,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:39,184 INFO L85 PathProgramCache]: Analyzing trace with hash 2084385862, now seen corresponding path program 1 times [2024-11-20 14:03:39,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:39,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44014003] [2024-11-20 14:03:39,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:39,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:39,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:39,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:39,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44014003] [2024-11-20 14:03:39,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44014003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:39,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:39,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:39,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958046618] [2024-11-20 14:03:39,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:39,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:39,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:39,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:39,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:39,284 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 841 out of 1108 [2024-11-20 14:03:39,285 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) [2024-11-20 14:03:39,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:39,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 841 of 1108 [2024-11-20 14:03:39,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:39,518 INFO L124 PetriNetUnfolderBase]: 30/1301 cut-off events. [2024-11-20 14:03:39,518 INFO L125 PetriNetUnfolderBase]: For 461/461 co-relation queries the response was YES. [2024-11-20 14:03:39,527 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. [2024-11-20 14:03:39,528 INFO L140 encePairwiseOnDemand]: 1102/1108 looper letters, 36 selfloop transitions, 1 changer transitions 24/271 dead transitions. [2024-11-20 14:03:39,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 271 transitions, 792 flow [2024-11-20 14:03:39,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:39,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:39,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2567 transitions. [2024-11-20 14:03:39,530 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7722623345367028 [2024-11-20 14:03:39,530 INFO L175 Difference]: Start difference. First operand has 336 places, 276 transitions, 724 flow. Second operand 3 states and 2567 transitions. [2024-11-20 14:03:39,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 271 transitions, 792 flow [2024-11-20 14:03:39,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 271 transitions, 788 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:39,533 INFO L231 Difference]: Finished difference. Result has 330 places, 247 transitions, 662 flow [2024-11-20 14:03:39,533 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} [2024-11-20 14:03:39,534 INFO L277 CegarLoopForPetriNet]: 336 programPoint places, -6 predicate places. [2024-11-20 14:03:39,534 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 247 transitions, 662 flow [2024-11-20 14:03:39,534 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) [2024-11-20 14:03:39,534 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:39,534 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] [2024-11-20 14:03:39,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2024-11-20 14:03:39,534 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)] === [2024-11-20 14:03:39,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:39,535 INFO L85 PathProgramCache]: Analyzing trace with hash -669616845, now seen corresponding path program 1 times [2024-11-20 14:03:39,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:39,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766277718] [2024-11-20 14:03:39,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:39,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:39,819 INFO L134 CoverageAnalysis]: Checked inductivity of 5516 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 5432 trivial. 0 not checked. [2024-11-20 14:03:39,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:39,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766277718] [2024-11-20 14:03:39,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766277718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:39,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:39,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:39,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858888321] [2024-11-20 14:03:39,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:39,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:39,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:39,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:39,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:39,916 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 925 out of 1108 [2024-11-20 14:03:39,918 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) [2024-11-20 14:03:39,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:39,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 925 of 1108 [2024-11-20 14:03:39,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:40,102 INFO L124 PetriNetUnfolderBase]: 0/618 cut-off events. [2024-11-20 14:03:40,102 INFO L125 PetriNetUnfolderBase]: For 460/460 co-relation queries the response was YES. [2024-11-20 14:03:40,102 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. [2024-11-20 14:03:40,103 INFO L140 encePairwiseOnDemand]: 1103/1108 looper letters, 36 selfloop transitions, 2 changer transitions 3/249 dead transitions. [2024-11-20 14:03:40,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 249 transitions, 748 flow [2024-11-20 14:03:40,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:40,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:40,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4667 transitions. [2024-11-20 14:03:40,106 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8424187725631769 [2024-11-20 14:03:40,106 INFO L175 Difference]: Start difference. First operand has 330 places, 247 transitions, 662 flow. Second operand 5 states and 4667 transitions. [2024-11-20 14:03:40,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 249 transitions, 748 flow [2024-11-20 14:03:40,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 249 transitions, 747 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:40,110 INFO L231 Difference]: Finished difference. Result has 310 places, 246 transitions, 667 flow [2024-11-20 14:03:40,111 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} [2024-11-20 14:03:40,111 INFO L277 CegarLoopForPetriNet]: 336 programPoint places, -26 predicate places. [2024-11-20 14:03:40,111 INFO L471 AbstractCegarLoop]: Abstraction has has 310 places, 246 transitions, 667 flow [2024-11-20 14:03:40,112 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) [2024-11-20 14:03:40,112 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:40,112 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] [2024-11-20 14:03:40,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2024-11-20 14:03:40,112 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)] === [2024-11-20 14:03:40,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:40,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1068415739, now seen corresponding path program 1 times [2024-11-20 14:03:40,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:40,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916966418] [2024-11-20 14:03:40,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:40,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:40,165 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:40,266 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:40,267 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:40,267 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2024-11-20 14:03:40,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2024-11-20 14:03:40,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2024-11-20 14:03:40,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2024-11-20 14:03:40,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2024-11-20 14:03:40,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2024-11-20 14:03:40,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 36 remaining) [2024-11-20 14:03:40,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2024-11-20 14:03:40,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2024-11-20 14:03:40,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2024-11-20 14:03:40,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2024-11-20 14:03:40,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2024-11-20 14:03:40,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2024-11-20 14:03:40,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2024-11-20 14:03:40,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2024-11-20 14:03:40,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2024-11-20 14:03:40,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2024-11-20 14:03:40,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2024-11-20 14:03:40,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2024-11-20 14:03:40,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2024-11-20 14:03:40,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2024-11-20 14:03:40,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2024-11-20 14:03:40,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2024-11-20 14:03:40,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2024-11-20 14:03:40,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2024-11-20 14:03:40,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2024-11-20 14:03:40,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2024-11-20 14:03:40,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2024-11-20 14:03:40,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2024-11-20 14:03:40,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2024-11-20 14:03:40,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2024-11-20 14:03:40,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2024-11-20 14:03:40,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2024-11-20 14:03:40,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2024-11-20 14:03:40,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2024-11-20 14:03:40,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2024-11-20 14:03:40,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2024-11-20 14:03:40,273 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:40,273 WARN L244 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:40,273 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2024-11-20 14:03:40,409 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:40,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1144 places, 1145 transitions, 4146 flow [2024-11-20 14:03:40,861 INFO L124 PetriNetUnfolderBase]: 152/1951 cut-off events. [2024-11-20 14:03:40,861 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2024-11-20 14:03:40,881 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. [2024-11-20 14:03:40,881 INFO L82 GeneralOperation]: Start removeDead. Operand has 1144 places, 1145 transitions, 4146 flow [2024-11-20 14:03:40,885 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 345 places, 288 transitions, 1507 flow [2024-11-20 14:03:40,886 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:40,886 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:40,886 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-11-20 14:03:40,888 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:40,888 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:40,888 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:40,888 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:40,888 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:40,888 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)] === [2024-11-20 14:03:40,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:40,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1378400771, now seen corresponding path program 1 times [2024-11-20 14:03:40,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:40,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071241141] [2024-11-20 14:03:40,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:40,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:40,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:40,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:40,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071241141] [2024-11-20 14:03:40,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071241141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:40,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:40,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:40,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482839304] [2024-11-20 14:03:40,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:40,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:40,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:40,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:40,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:41,011 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 929 out of 1145 [2024-11-20 14:03:41,013 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) [2024-11-20 14:03:41,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:41,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 929 of 1145 [2024-11-20 14:03:41,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:41,373 INFO L124 PetriNetUnfolderBase]: 61/1499 cut-off events. [2024-11-20 14:03:41,373 INFO L125 PetriNetUnfolderBase]: For 4931/4931 co-relation queries the response was YES. [2024-11-20 14:03:41,387 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. [2024-11-20 14:03:41,390 INFO L140 encePairwiseOnDemand]: 1139/1145 looper letters, 39 selfloop transitions, 2 changer transitions 1/284 dead transitions. [2024-11-20 14:03:41,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 284 transitions, 1581 flow [2024-11-20 14:03:41,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:41,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:41,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2832 transitions. [2024-11-20 14:03:41,393 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8244541484716157 [2024-11-20 14:03:41,393 INFO L175 Difference]: Start difference. First operand has 345 places, 288 transitions, 1507 flow. Second operand 3 states and 2832 transitions. [2024-11-20 14:03:41,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 284 transitions, 1581 flow [2024-11-20 14:03:41,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 284 transitions, 824 flow, removed 378 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:41,403 INFO L231 Difference]: Finished difference. Result has 345 places, 283 transitions, 744 flow [2024-11-20 14:03:41,403 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} [2024-11-20 14:03:41,403 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, 0 predicate places. [2024-11-20 14:03:41,403 INFO L471 AbstractCegarLoop]: Abstraction has has 345 places, 283 transitions, 744 flow [2024-11-20 14:03:41,404 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) [2024-11-20 14:03:41,404 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:41,404 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] [2024-11-20 14:03:41,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2024-11-20 14:03:41,404 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)] === [2024-11-20 14:03:41,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:41,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1561011078, now seen corresponding path program 1 times [2024-11-20 14:03:41,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:41,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34524177] [2024-11-20 14:03:41,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:41,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:41,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:41,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:41,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34524177] [2024-11-20 14:03:41,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34524177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:41,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:41,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:41,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644093891] [2024-11-20 14:03:41,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:41,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:41,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:41,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:41,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:41,516 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 869 out of 1145 [2024-11-20 14:03:41,518 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) [2024-11-20 14:03:41,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:41,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 869 of 1145 [2024-11-20 14:03:41,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:41,858 INFO L124 PetriNetUnfolderBase]: 31/1345 cut-off events. [2024-11-20 14:03:41,858 INFO L125 PetriNetUnfolderBase]: For 492/492 co-relation queries the response was YES. [2024-11-20 14:03:41,868 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. [2024-11-20 14:03:41,870 INFO L140 encePairwiseOnDemand]: 1139/1145 looper letters, 37 selfloop transitions, 1 changer transitions 24/278 dead transitions. [2024-11-20 14:03:41,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 278 transitions, 814 flow [2024-11-20 14:03:41,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:41,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:41,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2652 transitions. [2024-11-20 14:03:41,873 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7720524017467248 [2024-11-20 14:03:41,873 INFO L175 Difference]: Start difference. First operand has 345 places, 283 transitions, 744 flow. Second operand 3 states and 2652 transitions. [2024-11-20 14:03:41,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 278 transitions, 814 flow [2024-11-20 14:03:41,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 278 transitions, 810 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:41,878 INFO L231 Difference]: Finished difference. Result has 339 places, 254 transitions, 682 flow [2024-11-20 14:03:41,878 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} [2024-11-20 14:03:41,878 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, -6 predicate places. [2024-11-20 14:03:41,878 INFO L471 AbstractCegarLoop]: Abstraction has has 339 places, 254 transitions, 682 flow [2024-11-20 14:03:41,878 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) [2024-11-20 14:03:41,878 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:41,879 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] [2024-11-20 14:03:41,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2024-11-20 14:03:41,879 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)] === [2024-11-20 14:03:41,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:41,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1702375723, now seen corresponding path program 1 times [2024-11-20 14:03:41,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:41,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864920762] [2024-11-20 14:03:41,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:41,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:42,099 INFO L134 CoverageAnalysis]: Checked inductivity of 5916 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 5829 trivial. 0 not checked. [2024-11-20 14:03:42,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:42,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864920762] [2024-11-20 14:03:42,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864920762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:42,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:42,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:42,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448975071] [2024-11-20 14:03:42,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:42,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:42,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:42,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:42,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:42,196 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 956 out of 1145 [2024-11-20 14:03:42,197 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) [2024-11-20 14:03:42,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:42,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 956 of 1145 [2024-11-20 14:03:42,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:42,315 INFO L124 PetriNetUnfolderBase]: 0/638 cut-off events. [2024-11-20 14:03:42,315 INFO L125 PetriNetUnfolderBase]: For 491/491 co-relation queries the response was YES. [2024-11-20 14:03:42,316 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. [2024-11-20 14:03:42,316 INFO L140 encePairwiseOnDemand]: 1140/1145 looper letters, 37 selfloop transitions, 2 changer transitions 3/256 dead transitions. [2024-11-20 14:03:42,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 256 transitions, 770 flow [2024-11-20 14:03:42,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:42,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:42,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4823 transitions. [2024-11-20 14:03:42,318 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8424454148471616 [2024-11-20 14:03:42,318 INFO L175 Difference]: Start difference. First operand has 339 places, 254 transitions, 682 flow. Second operand 5 states and 4823 transitions. [2024-11-20 14:03:42,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 256 transitions, 770 flow [2024-11-20 14:03:42,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 256 transitions, 769 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:42,321 INFO L231 Difference]: Finished difference. Result has 319 places, 253 transitions, 687 flow [2024-11-20 14:03:42,321 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} [2024-11-20 14:03:42,322 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, -26 predicate places. [2024-11-20 14:03:42,322 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 253 transitions, 687 flow [2024-11-20 14:03:42,322 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) [2024-11-20 14:03:42,322 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:42,322 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] [2024-11-20 14:03:42,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2024-11-20 14:03:42,323 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)] === [2024-11-20 14:03:42,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:42,323 INFO L85 PathProgramCache]: Analyzing trace with hash 826427514, now seen corresponding path program 1 times [2024-11-20 14:03:42,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:42,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959052686] [2024-11-20 14:03:42,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:42,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:42,374 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:42,473 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:42,473 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:42,473 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2024-11-20 14:03:42,474 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2024-11-20 14:03:42,474 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2024-11-20 14:03:42,474 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2024-11-20 14:03:42,474 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2024-11-20 14:03:42,474 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2024-11-20 14:03:42,474 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 37 remaining) [2024-11-20 14:03:42,474 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2024-11-20 14:03:42,474 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2024-11-20 14:03:42,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2024-11-20 14:03:42,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2024-11-20 14:03:42,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2024-11-20 14:03:42,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2024-11-20 14:03:42,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2024-11-20 14:03:42,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2024-11-20 14:03:42,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2024-11-20 14:03:42,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2024-11-20 14:03:42,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2024-11-20 14:03:42,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2024-11-20 14:03:42,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2024-11-20 14:03:42,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2024-11-20 14:03:42,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2024-11-20 14:03:42,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2024-11-20 14:03:42,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2024-11-20 14:03:42,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2024-11-20 14:03:42,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2024-11-20 14:03:42,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2024-11-20 14:03:42,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2024-11-20 14:03:42,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2024-11-20 14:03:42,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2024-11-20 14:03:42,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2024-11-20 14:03:42,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2024-11-20 14:03:42,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2024-11-20 14:03:42,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2024-11-20 14:03:42,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2024-11-20 14:03:42,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2024-11-20 14:03:42,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2024-11-20 14:03:42,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2024-11-20 14:03:42,478 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:42,478 WARN L244 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:42,479 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2024-11-20 14:03:42,596 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:42,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1181 places, 1182 transitions, 4344 flow [2024-11-20 14:03:42,902 INFO L124 PetriNetUnfolderBase]: 157/2015 cut-off events. [2024-11-20 14:03:42,902 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2024-11-20 14:03:42,922 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. [2024-11-20 14:03:42,922 INFO L82 GeneralOperation]: Start removeDead. Operand has 1181 places, 1182 transitions, 4344 flow [2024-11-20 14:03:42,925 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 354 places, 295 transitions, 1583 flow [2024-11-20 14:03:42,926 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:42,926 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:42,926 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-11-20 14:03:42,927 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:42,927 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:42,927 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:42,927 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:42,927 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:42,927 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)] === [2024-11-20 14:03:42,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:42,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1441208323, now seen corresponding path program 1 times [2024-11-20 14:03:42,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:42,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847071660] [2024-11-20 14:03:42,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:42,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:42,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:42,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:42,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847071660] [2024-11-20 14:03:42,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847071660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:42,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:42,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:42,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747746839] [2024-11-20 14:03:42,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:42,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:42,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:42,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:42,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:43,037 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 959 out of 1182 [2024-11-20 14:03:43,038 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) [2024-11-20 14:03:43,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:43,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 959 of 1182 [2024-11-20 14:03:43,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:43,308 INFO L124 PetriNetUnfolderBase]: 63/1548 cut-off events. [2024-11-20 14:03:43,308 INFO L125 PetriNetUnfolderBase]: For 5426/5426 co-relation queries the response was YES. [2024-11-20 14:03:43,321 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. [2024-11-20 14:03:43,323 INFO L140 encePairwiseOnDemand]: 1176/1182 looper letters, 40 selfloop transitions, 2 changer transitions 1/291 dead transitions. [2024-11-20 14:03:43,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 291 transitions, 1659 flow [2024-11-20 14:03:43,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:43,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:43,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2923 transitions. [2024-11-20 14:03:43,325 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8243090806542583 [2024-11-20 14:03:43,325 INFO L175 Difference]: Start difference. First operand has 354 places, 295 transitions, 1583 flow. Second operand 3 states and 2923 transitions. [2024-11-20 14:03:43,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 291 transitions, 1659 flow [2024-11-20 14:03:43,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 291 transitions, 846 flow, removed 406 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:43,333 INFO L231 Difference]: Finished difference. Result has 354 places, 290 transitions, 764 flow [2024-11-20 14:03:43,334 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} [2024-11-20 14:03:43,334 INFO L277 CegarLoopForPetriNet]: 354 programPoint places, 0 predicate places. [2024-11-20 14:03:43,334 INFO L471 AbstractCegarLoop]: Abstraction has has 354 places, 290 transitions, 764 flow [2024-11-20 14:03:43,334 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) [2024-11-20 14:03:43,334 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:43,334 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:43,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2024-11-20 14:03:43,335 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)] === [2024-11-20 14:03:43,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:43,335 INFO L85 PathProgramCache]: Analyzing trace with hash -2137671418, now seen corresponding path program 1 times [2024-11-20 14:03:43,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:43,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805136778] [2024-11-20 14:03:43,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:43,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:43,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:43,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:43,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:43,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805136778] [2024-11-20 14:03:43,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805136778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:43,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:43,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:43,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216336928] [2024-11-20 14:03:43,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:43,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:43,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:43,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:43,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:43,433 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 897 out of 1182 [2024-11-20 14:03:43,434 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) [2024-11-20 14:03:43,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:43,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 897 of 1182 [2024-11-20 14:03:43,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:43,672 INFO L124 PetriNetUnfolderBase]: 32/1389 cut-off events. [2024-11-20 14:03:43,672 INFO L125 PetriNetUnfolderBase]: For 524/524 co-relation queries the response was YES. [2024-11-20 14:03:43,683 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. [2024-11-20 14:03:43,684 INFO L140 encePairwiseOnDemand]: 1176/1182 looper letters, 38 selfloop transitions, 1 changer transitions 24/285 dead transitions. [2024-11-20 14:03:43,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 285 transitions, 836 flow [2024-11-20 14:03:43,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:43,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:43,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2737 transitions. [2024-11-20 14:03:43,686 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7718556119571348 [2024-11-20 14:03:43,686 INFO L175 Difference]: Start difference. First operand has 354 places, 290 transitions, 764 flow. Second operand 3 states and 2737 transitions. [2024-11-20 14:03:43,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 285 transitions, 836 flow [2024-11-20 14:03:43,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 285 transitions, 832 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:43,689 INFO L231 Difference]: Finished difference. Result has 348 places, 261 transitions, 702 flow [2024-11-20 14:03:43,689 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} [2024-11-20 14:03:43,689 INFO L277 CegarLoopForPetriNet]: 354 programPoint places, -6 predicate places. [2024-11-20 14:03:43,689 INFO L471 AbstractCegarLoop]: Abstraction has has 348 places, 261 transitions, 702 flow [2024-11-20 14:03:43,690 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) [2024-11-20 14:03:43,690 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:43,690 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] [2024-11-20 14:03:43,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2024-11-20 14:03:43,690 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)] === [2024-11-20 14:03:43,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:43,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1171338097, now seen corresponding path program 1 times [2024-11-20 14:03:43,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:43,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459060488] [2024-11-20 14:03:43,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:43,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:43,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:43,900 INFO L134 CoverageAnalysis]: Checked inductivity of 6330 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 6240 trivial. 0 not checked. [2024-11-20 14:03:43,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:43,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459060488] [2024-11-20 14:03:43,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459060488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:43,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:43,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:43,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83203384] [2024-11-20 14:03:43,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:43,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:43,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:43,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:43,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:43,998 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 987 out of 1182 [2024-11-20 14:03:43,999 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) [2024-11-20 14:03:43,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:43,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 987 of 1182 [2024-11-20 14:03:43,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:44,124 INFO L124 PetriNetUnfolderBase]: 0/658 cut-off events. [2024-11-20 14:03:44,124 INFO L125 PetriNetUnfolderBase]: For 523/523 co-relation queries the response was YES. [2024-11-20 14:03:44,125 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. [2024-11-20 14:03:44,125 INFO L140 encePairwiseOnDemand]: 1177/1182 looper letters, 38 selfloop transitions, 2 changer transitions 3/263 dead transitions. [2024-11-20 14:03:44,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 263 transitions, 792 flow [2024-11-20 14:03:44,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:44,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:44,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4979 transitions. [2024-11-20 14:03:44,127 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8424703891708968 [2024-11-20 14:03:44,127 INFO L175 Difference]: Start difference. First operand has 348 places, 261 transitions, 702 flow. Second operand 5 states and 4979 transitions. [2024-11-20 14:03:44,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 263 transitions, 792 flow [2024-11-20 14:03:44,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 263 transitions, 791 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:44,130 INFO L231 Difference]: Finished difference. Result has 328 places, 260 transitions, 707 flow [2024-11-20 14:03:44,130 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} [2024-11-20 14:03:44,130 INFO L277 CegarLoopForPetriNet]: 354 programPoint places, -26 predicate places. [2024-11-20 14:03:44,131 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 260 transitions, 707 flow [2024-11-20 14:03:44,131 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) [2024-11-20 14:03:44,131 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:44,131 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] [2024-11-20 14:03:44,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2024-11-20 14:03:44,131 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-20 14:03:44,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:44,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1430646144, now seen corresponding path program 1 times [2024-11-20 14:03:44,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:44,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313668429] [2024-11-20 14:03:44,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:44,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:44,167 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:44,268 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:44,268 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:44,269 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2024-11-20 14:03:44,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2024-11-20 14:03:44,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2024-11-20 14:03:44,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2024-11-20 14:03:44,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2024-11-20 14:03:44,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2024-11-20 14:03:44,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 38 remaining) [2024-11-20 14:03:44,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2024-11-20 14:03:44,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2024-11-20 14:03:44,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2024-11-20 14:03:44,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2024-11-20 14:03:44,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2024-11-20 14:03:44,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2024-11-20 14:03:44,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2024-11-20 14:03:44,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2024-11-20 14:03:44,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2024-11-20 14:03:44,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2024-11-20 14:03:44,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2024-11-20 14:03:44,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2024-11-20 14:03:44,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2024-11-20 14:03:44,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2024-11-20 14:03:44,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2024-11-20 14:03:44,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2024-11-20 14:03:44,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2024-11-20 14:03:44,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2024-11-20 14:03:44,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2024-11-20 14:03:44,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2024-11-20 14:03:44,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2024-11-20 14:03:44,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2024-11-20 14:03:44,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2024-11-20 14:03:44,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2024-11-20 14:03:44,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2024-11-20 14:03:44,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2024-11-20 14:03:44,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2024-11-20 14:03:44,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2024-11-20 14:03:44,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2024-11-20 14:03:44,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2024-11-20 14:03:44,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2024-11-20 14:03:44,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2024-11-20 14:03:44,272 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:44,272 WARN L244 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:44,272 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2024-11-20 14:03:44,390 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:44,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1218 places, 1219 transitions, 4546 flow [2024-11-20 14:03:44,713 INFO L124 PetriNetUnfolderBase]: 162/2079 cut-off events. [2024-11-20 14:03:44,713 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2024-11-20 14:03:44,735 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. [2024-11-20 14:03:44,735 INFO L82 GeneralOperation]: Start removeDead. Operand has 1218 places, 1219 transitions, 4546 flow [2024-11-20 14:03:44,739 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 363 places, 302 transitions, 1661 flow [2024-11-20 14:03:44,739 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:44,739 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:44,739 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-20 14:03:44,740 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:44,740 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:44,740 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:44,740 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:44,740 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:44,740 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)] === [2024-11-20 14:03:44,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:44,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1455110915, now seen corresponding path program 1 times [2024-11-20 14:03:44,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:44,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205614433] [2024-11-20 14:03:44,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:44,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:44,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:44,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:44,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205614433] [2024-11-20 14:03:44,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205614433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:44,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:44,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:44,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48596378] [2024-11-20 14:03:44,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:44,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:44,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:44,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:44,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:44,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 989 out of 1219 [2024-11-20 14:03:44,876 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) [2024-11-20 14:03:44,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:44,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 989 of 1219 [2024-11-20 14:03:44,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:45,156 INFO L124 PetriNetUnfolderBase]: 65/1597 cut-off events. [2024-11-20 14:03:45,156 INFO L125 PetriNetUnfolderBase]: For 5953/5953 co-relation queries the response was YES. [2024-11-20 14:03:45,171 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. [2024-11-20 14:03:45,174 INFO L140 encePairwiseOnDemand]: 1213/1219 looper letters, 41 selfloop transitions, 2 changer transitions 1/298 dead transitions. [2024-11-20 14:03:45,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 298 transitions, 1739 flow [2024-11-20 14:03:45,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:45,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:45,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3014 transitions. [2024-11-20 14:03:45,176 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.824172819250752 [2024-11-20 14:03:45,176 INFO L175 Difference]: Start difference. First operand has 363 places, 302 transitions, 1661 flow. Second operand 3 states and 3014 transitions. [2024-11-20 14:03:45,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 298 transitions, 1739 flow [2024-11-20 14:03:45,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 298 transitions, 868 flow, removed 435 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:45,185 INFO L231 Difference]: Finished difference. Result has 363 places, 297 transitions, 784 flow [2024-11-20 14:03:45,185 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} [2024-11-20 14:03:45,185 INFO L277 CegarLoopForPetriNet]: 363 programPoint places, 0 predicate places. [2024-11-20 14:03:45,185 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 297 transitions, 784 flow [2024-11-20 14:03:45,185 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) [2024-11-20 14:03:45,185 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:45,185 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] [2024-11-20 14:03:45,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2024-11-20 14:03:45,186 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)] === [2024-11-20 14:03:45,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:45,186 INFO L85 PathProgramCache]: Analyzing trace with hash -421727034, now seen corresponding path program 1 times [2024-11-20 14:03:45,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:45,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309025955] [2024-11-20 14:03:45,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:45,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:45,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:45,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:45,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309025955] [2024-11-20 14:03:45,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309025955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:45,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:45,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:45,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877563087] [2024-11-20 14:03:45,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:45,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:45,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:45,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:45,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:45,275 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 925 out of 1219 [2024-11-20 14:03:45,276 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) [2024-11-20 14:03:45,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:45,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 925 of 1219 [2024-11-20 14:03:45,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:45,532 INFO L124 PetriNetUnfolderBase]: 33/1433 cut-off events. [2024-11-20 14:03:45,532 INFO L125 PetriNetUnfolderBase]: For 557/557 co-relation queries the response was YES. [2024-11-20 14:03:45,545 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. [2024-11-20 14:03:45,546 INFO L140 encePairwiseOnDemand]: 1213/1219 looper letters, 39 selfloop transitions, 1 changer transitions 24/292 dead transitions. [2024-11-20 14:03:45,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 292 transitions, 858 flow [2024-11-20 14:03:45,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:45,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:45,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2822 transitions. [2024-11-20 14:03:45,548 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7716707683893902 [2024-11-20 14:03:45,548 INFO L175 Difference]: Start difference. First operand has 363 places, 297 transitions, 784 flow. Second operand 3 states and 2822 transitions. [2024-11-20 14:03:45,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 292 transitions, 858 flow [2024-11-20 14:03:45,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 292 transitions, 854 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:45,551 INFO L231 Difference]: Finished difference. Result has 357 places, 268 transitions, 722 flow [2024-11-20 14:03:45,551 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} [2024-11-20 14:03:45,551 INFO L277 CegarLoopForPetriNet]: 363 programPoint places, -6 predicate places. [2024-11-20 14:03:45,552 INFO L471 AbstractCegarLoop]: Abstraction has has 357 places, 268 transitions, 722 flow [2024-11-20 14:03:45,552 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) [2024-11-20 14:03:45,552 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:45,552 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] [2024-11-20 14:03:45,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2024-11-20 14:03:45,552 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)] === [2024-11-20 14:03:45,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:45,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1225873217, now seen corresponding path program 1 times [2024-11-20 14:03:45,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:45,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814051027] [2024-11-20 14:03:45,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:45,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:45,779 INFO L134 CoverageAnalysis]: Checked inductivity of 6758 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 6665 trivial. 0 not checked. [2024-11-20 14:03:45,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:45,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814051027] [2024-11-20 14:03:45,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814051027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:45,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:45,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:45,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621060313] [2024-11-20 14:03:45,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:45,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:45,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:45,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:45,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:45,873 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1018 out of 1219 [2024-11-20 14:03:45,875 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) [2024-11-20 14:03:45,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:45,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1018 of 1219 [2024-11-20 14:03:45,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:46,018 INFO L124 PetriNetUnfolderBase]: 0/678 cut-off events. [2024-11-20 14:03:46,019 INFO L125 PetriNetUnfolderBase]: For 556/556 co-relation queries the response was YES. [2024-11-20 14:03:46,019 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. [2024-11-20 14:03:46,019 INFO L140 encePairwiseOnDemand]: 1214/1219 looper letters, 39 selfloop transitions, 2 changer transitions 3/270 dead transitions. [2024-11-20 14:03:46,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 270 transitions, 814 flow [2024-11-20 14:03:46,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:46,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:46,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5135 transitions. [2024-11-20 14:03:46,021 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8424938474159147 [2024-11-20 14:03:46,021 INFO L175 Difference]: Start difference. First operand has 357 places, 268 transitions, 722 flow. Second operand 5 states and 5135 transitions. [2024-11-20 14:03:46,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 270 transitions, 814 flow [2024-11-20 14:03:46,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 270 transitions, 813 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:46,025 INFO L231 Difference]: Finished difference. Result has 337 places, 267 transitions, 727 flow [2024-11-20 14:03:46,025 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} [2024-11-20 14:03:46,025 INFO L277 CegarLoopForPetriNet]: 363 programPoint places, -26 predicate places. [2024-11-20 14:03:46,025 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 267 transitions, 727 flow [2024-11-20 14:03:46,025 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) [2024-11-20 14:03:46,025 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:46,026 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] [2024-11-20 14:03:46,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2024-11-20 14:03:46,026 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)] === [2024-11-20 14:03:46,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:46,026 INFO L85 PathProgramCache]: Analyzing trace with hash 262035885, now seen corresponding path program 1 times [2024-11-20 14:03:46,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:46,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168828835] [2024-11-20 14:03:46,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:46,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:46,065 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:46,163 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:46,163 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:46,163 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2024-11-20 14:03:46,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2024-11-20 14:03:46,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2024-11-20 14:03:46,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2024-11-20 14:03:46,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2024-11-20 14:03:46,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2024-11-20 14:03:46,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 39 remaining) [2024-11-20 14:03:46,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2024-11-20 14:03:46,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2024-11-20 14:03:46,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2024-11-20 14:03:46,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2024-11-20 14:03:46,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2024-11-20 14:03:46,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2024-11-20 14:03:46,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2024-11-20 14:03:46,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2024-11-20 14:03:46,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2024-11-20 14:03:46,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2024-11-20 14:03:46,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2024-11-20 14:03:46,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2024-11-20 14:03:46,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2024-11-20 14:03:46,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2024-11-20 14:03:46,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2024-11-20 14:03:46,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2024-11-20 14:03:46,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2024-11-20 14:03:46,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2024-11-20 14:03:46,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2024-11-20 14:03:46,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2024-11-20 14:03:46,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2024-11-20 14:03:46,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2024-11-20 14:03:46,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2024-11-20 14:03:46,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2024-11-20 14:03:46,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2024-11-20 14:03:46,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2024-11-20 14:03:46,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2024-11-20 14:03:46,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2024-11-20 14:03:46,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2024-11-20 14:03:46,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2024-11-20 14:03:46,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2024-11-20 14:03:46,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2024-11-20 14:03:46,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2024-11-20 14:03:46,166 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:46,166 WARN L244 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:46,166 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2024-11-20 14:03:46,276 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:46,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1255 places, 1256 transitions, 4752 flow [2024-11-20 14:03:46,633 INFO L124 PetriNetUnfolderBase]: 167/2143 cut-off events. [2024-11-20 14:03:46,633 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2024-11-20 14:03:46,660 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. [2024-11-20 14:03:46,660 INFO L82 GeneralOperation]: Start removeDead. Operand has 1255 places, 1256 transitions, 4752 flow [2024-11-20 14:03:46,664 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 372 places, 309 transitions, 1741 flow [2024-11-20 14:03:46,665 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:46,665 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:46,665 INFO L334 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2024-11-20 14:03:46,666 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:46,666 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:46,666 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:46,666 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:46,666 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:46,666 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)] === [2024-11-20 14:03:46,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:46,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1420108547, now seen corresponding path program 1 times [2024-11-20 14:03:46,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:46,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082839821] [2024-11-20 14:03:46,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:46,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:46,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:46,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:46,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082839821] [2024-11-20 14:03:46,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082839821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:46,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:46,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:46,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020751496] [2024-11-20 14:03:46,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:46,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:46,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:46,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:46,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:46,783 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1019 out of 1256 [2024-11-20 14:03:46,784 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) [2024-11-20 14:03:46,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:46,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1019 of 1256 [2024-11-20 14:03:46,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:47,080 INFO L124 PetriNetUnfolderBase]: 67/1646 cut-off events. [2024-11-20 14:03:47,080 INFO L125 PetriNetUnfolderBase]: For 6513/6513 co-relation queries the response was YES. [2024-11-20 14:03:47,095 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. [2024-11-20 14:03:47,098 INFO L140 encePairwiseOnDemand]: 1250/1256 looper letters, 42 selfloop transitions, 2 changer transitions 1/305 dead transitions. [2024-11-20 14:03:47,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 305 transitions, 1821 flow [2024-11-20 14:03:47,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:47,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:47,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3105 transitions. [2024-11-20 14:03:47,100 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8240445859872612 [2024-11-20 14:03:47,100 INFO L175 Difference]: Start difference. First operand has 372 places, 309 transitions, 1741 flow. Second operand 3 states and 3105 transitions. [2024-11-20 14:03:47,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 305 transitions, 1821 flow [2024-11-20 14:03:47,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 305 transitions, 890 flow, removed 465 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:47,109 INFO L231 Difference]: Finished difference. Result has 372 places, 304 transitions, 804 flow [2024-11-20 14:03:47,109 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} [2024-11-20 14:03:47,109 INFO L277 CegarLoopForPetriNet]: 372 programPoint places, 0 predicate places. [2024-11-20 14:03:47,109 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 304 transitions, 804 flow [2024-11-20 14:03:47,110 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) [2024-11-20 14:03:47,110 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:47,110 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] [2024-11-20 14:03:47,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2024-11-20 14:03:47,110 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)] === [2024-11-20 14:03:47,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:47,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1881090362, now seen corresponding path program 1 times [2024-11-20 14:03:47,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:47,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764559137] [2024-11-20 14:03:47,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:47,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:47,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:47,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:47,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764559137] [2024-11-20 14:03:47,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764559137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:47,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:47,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:47,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086085163] [2024-11-20 14:03:47,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:47,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:47,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:47,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:47,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:47,212 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 953 out of 1256 [2024-11-20 14:03:47,212 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) [2024-11-20 14:03:47,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:47,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 953 of 1256 [2024-11-20 14:03:47,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:47,479 INFO L124 PetriNetUnfolderBase]: 34/1477 cut-off events. [2024-11-20 14:03:47,479 INFO L125 PetriNetUnfolderBase]: For 591/591 co-relation queries the response was YES. [2024-11-20 14:03:47,492 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. [2024-11-20 14:03:47,493 INFO L140 encePairwiseOnDemand]: 1250/1256 looper letters, 40 selfloop transitions, 1 changer transitions 24/299 dead transitions. [2024-11-20 14:03:47,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 299 transitions, 880 flow [2024-11-20 14:03:47,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:47,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:47,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2907 transitions. [2024-11-20 14:03:47,495 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7714968152866242 [2024-11-20 14:03:47,495 INFO L175 Difference]: Start difference. First operand has 372 places, 304 transitions, 804 flow. Second operand 3 states and 2907 transitions. [2024-11-20 14:03:47,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 299 transitions, 880 flow [2024-11-20 14:03:47,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 299 transitions, 876 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:47,498 INFO L231 Difference]: Finished difference. Result has 366 places, 275 transitions, 742 flow [2024-11-20 14:03:47,498 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} [2024-11-20 14:03:47,498 INFO L277 CegarLoopForPetriNet]: 372 programPoint places, -6 predicate places. [2024-11-20 14:03:47,499 INFO L471 AbstractCegarLoop]: Abstraction has has 366 places, 275 transitions, 742 flow [2024-11-20 14:03:47,499 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) [2024-11-20 14:03:47,499 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:47,499 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] [2024-11-20 14:03:47,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2024-11-20 14:03:47,499 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)] === [2024-11-20 14:03:47,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:47,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1881086181, now seen corresponding path program 1 times [2024-11-20 14:03:47,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:47,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625096906] [2024-11-20 14:03:47,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:47,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:47,617 INFO L134 CoverageAnalysis]: Checked inductivity of 7200 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 7104 trivial. 0 not checked. [2024-11-20 14:03:47,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:47,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625096906] [2024-11-20 14:03:47,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625096906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:47,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:47,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:47,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487394994] [2024-11-20 14:03:47,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:47,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:47,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:47,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:47,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:47,726 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1256 [2024-11-20 14:03:47,728 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) [2024-11-20 14:03:47,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:47,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1256 [2024-11-20 14:03:47,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:47,892 INFO L124 PetriNetUnfolderBase]: 0/698 cut-off events. [2024-11-20 14:03:47,892 INFO L125 PetriNetUnfolderBase]: For 590/590 co-relation queries the response was YES. [2024-11-20 14:03:47,892 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. [2024-11-20 14:03:47,893 INFO L140 encePairwiseOnDemand]: 1251/1256 looper letters, 40 selfloop transitions, 2 changer transitions 3/277 dead transitions. [2024-11-20 14:03:47,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 277 transitions, 836 flow [2024-11-20 14:03:47,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:47,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:47,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5291 transitions. [2024-11-20 14:03:47,895 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.842515923566879 [2024-11-20 14:03:47,895 INFO L175 Difference]: Start difference. First operand has 366 places, 275 transitions, 742 flow. Second operand 5 states and 5291 transitions. [2024-11-20 14:03:47,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 277 transitions, 836 flow [2024-11-20 14:03:47,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 277 transitions, 835 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:47,899 INFO L231 Difference]: Finished difference. Result has 346 places, 274 transitions, 747 flow [2024-11-20 14:03:47,899 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} [2024-11-20 14:03:47,899 INFO L277 CegarLoopForPetriNet]: 372 programPoint places, -26 predicate places. [2024-11-20 14:03:47,900 INFO L471 AbstractCegarLoop]: Abstraction has has 346 places, 274 transitions, 747 flow [2024-11-20 14:03:47,900 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) [2024-11-20 14:03:47,900 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:47,900 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] [2024-11-20 14:03:47,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2024-11-20 14:03:47,900 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)] === [2024-11-20 14:03:47,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:47,901 INFO L85 PathProgramCache]: Analyzing trace with hash 765533345, now seen corresponding path program 1 times [2024-11-20 14:03:47,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:47,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536863845] [2024-11-20 14:03:47,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:47,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:47,943 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:48,078 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:48,078 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:48,078 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 40 remaining) [2024-11-20 14:03:48,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2024-11-20 14:03:48,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2024-11-20 14:03:48,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2024-11-20 14:03:48,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2024-11-20 14:03:48,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2024-11-20 14:03:48,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 40 remaining) [2024-11-20 14:03:48,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2024-11-20 14:03:48,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2024-11-20 14:03:48,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2024-11-20 14:03:48,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2024-11-20 14:03:48,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2024-11-20 14:03:48,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2024-11-20 14:03:48,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2024-11-20 14:03:48,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2024-11-20 14:03:48,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2024-11-20 14:03:48,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2024-11-20 14:03:48,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2024-11-20 14:03:48,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2024-11-20 14:03:48,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2024-11-20 14:03:48,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2024-11-20 14:03:48,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2024-11-20 14:03:48,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2024-11-20 14:03:48,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2024-11-20 14:03:48,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2024-11-20 14:03:48,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2024-11-20 14:03:48,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2024-11-20 14:03:48,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2024-11-20 14:03:48,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2024-11-20 14:03:48,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2024-11-20 14:03:48,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2024-11-20 14:03:48,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2024-11-20 14:03:48,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2024-11-20 14:03:48,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2024-11-20 14:03:48,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2024-11-20 14:03:48,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2024-11-20 14:03:48,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2024-11-20 14:03:48,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2024-11-20 14:03:48,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2024-11-20 14:03:48,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2024-11-20 14:03:48,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2024-11-20 14:03:48,081 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:48,081 WARN L244 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:48,081 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2024-11-20 14:03:48,193 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:48,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1292 places, 1293 transitions, 4962 flow [2024-11-20 14:03:48,801 INFO L124 PetriNetUnfolderBase]: 172/2207 cut-off events. [2024-11-20 14:03:48,801 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2024-11-20 14:03:48,826 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. [2024-11-20 14:03:48,826 INFO L82 GeneralOperation]: Start removeDead. Operand has 1292 places, 1293 transitions, 4962 flow [2024-11-20 14:03:48,830 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 381 places, 316 transitions, 1823 flow [2024-11-20 14:03:48,831 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:48,831 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:48,831 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2024-11-20 14:03:48,833 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:48,833 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:48,833 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:48,833 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:48,833 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:48,833 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)] === [2024-11-20 14:03:48,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:48,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1336201219, now seen corresponding path program 1 times [2024-11-20 14:03:48,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:48,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968672514] [2024-11-20 14:03:48,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:48,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:48,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:48,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:48,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968672514] [2024-11-20 14:03:48,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968672514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:48,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:48,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:48,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154082271] [2024-11-20 14:03:48,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:48,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:48,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:48,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:48,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:48,987 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1293 [2024-11-20 14:03:48,988 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) [2024-11-20 14:03:48,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:48,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1293 [2024-11-20 14:03:48,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:49,449 INFO L124 PetriNetUnfolderBase]: 69/1695 cut-off events. [2024-11-20 14:03:49,450 INFO L125 PetriNetUnfolderBase]: For 7107/7107 co-relation queries the response was YES. [2024-11-20 14:03:49,467 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. [2024-11-20 14:03:49,470 INFO L140 encePairwiseOnDemand]: 1287/1293 looper letters, 43 selfloop transitions, 2 changer transitions 1/312 dead transitions. [2024-11-20 14:03:49,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 312 transitions, 1905 flow [2024-11-20 14:03:49,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:49,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:49,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3196 transitions. [2024-11-20 14:03:49,473 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8239236916731116 [2024-11-20 14:03:49,473 INFO L175 Difference]: Start difference. First operand has 381 places, 316 transitions, 1823 flow. Second operand 3 states and 3196 transitions. [2024-11-20 14:03:49,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 312 transitions, 1905 flow [2024-11-20 14:03:49,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 312 transitions, 912 flow, removed 496 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:49,486 INFO L231 Difference]: Finished difference. Result has 381 places, 311 transitions, 824 flow [2024-11-20 14:03:49,486 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} [2024-11-20 14:03:49,487 INFO L277 CegarLoopForPetriNet]: 381 programPoint places, 0 predicate places. [2024-11-20 14:03:49,487 INFO L471 AbstractCegarLoop]: Abstraction has has 381 places, 311 transitions, 824 flow [2024-11-20 14:03:49,487 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) [2024-11-20 14:03:49,487 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:49,487 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] [2024-11-20 14:03:49,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2024-11-20 14:03:49,487 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)] === [2024-11-20 14:03:49,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:49,488 INFO L85 PathProgramCache]: Analyzing trace with hash 2074173190, now seen corresponding path program 1 times [2024-11-20 14:03:49,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:49,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472549719] [2024-11-20 14:03:49,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:49,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:49,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:49,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:49,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472549719] [2024-11-20 14:03:49,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472549719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:49,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:49,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:49,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168548910] [2024-11-20 14:03:49,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:49,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:49,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:49,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:49,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:49,599 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 981 out of 1293 [2024-11-20 14:03:49,601 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) [2024-11-20 14:03:49,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:49,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 981 of 1293 [2024-11-20 14:03:49,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:50,031 INFO L124 PetriNetUnfolderBase]: 35/1521 cut-off events. [2024-11-20 14:03:50,031 INFO L125 PetriNetUnfolderBase]: For 626/626 co-relation queries the response was YES. [2024-11-20 14:03:50,046 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. [2024-11-20 14:03:50,048 INFO L140 encePairwiseOnDemand]: 1287/1293 looper letters, 41 selfloop transitions, 1 changer transitions 24/306 dead transitions. [2024-11-20 14:03:50,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 306 transitions, 902 flow [2024-11-20 14:03:50,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:50,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:50,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2992 transitions. [2024-11-20 14:03:50,050 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7713328177365301 [2024-11-20 14:03:50,051 INFO L175 Difference]: Start difference. First operand has 381 places, 311 transitions, 824 flow. Second operand 3 states and 2992 transitions. [2024-11-20 14:03:50,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 306 transitions, 902 flow [2024-11-20 14:03:50,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 306 transitions, 898 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:50,055 INFO L231 Difference]: Finished difference. Result has 375 places, 282 transitions, 762 flow [2024-11-20 14:03:50,055 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} [2024-11-20 14:03:50,056 INFO L277 CegarLoopForPetriNet]: 381 programPoint places, -6 predicate places. [2024-11-20 14:03:50,056 INFO L471 AbstractCegarLoop]: Abstraction has has 375 places, 282 transitions, 762 flow [2024-11-20 14:03:50,056 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) [2024-11-20 14:03:50,056 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:50,056 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] [2024-11-20 14:03:50,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2024-11-20 14:03:50,057 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)] === [2024-11-20 14:03:50,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:50,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1013410051, now seen corresponding path program 1 times [2024-11-20 14:03:50,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:50,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686453469] [2024-11-20 14:03:50,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:50,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:50,257 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 7557 trivial. 0 not checked. [2024-11-20 14:03:50,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:50,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686453469] [2024-11-20 14:03:50,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686453469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:50,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:50,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:50,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520457945] [2024-11-20 14:03:50,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:50,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:50,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:50,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:50,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:50,375 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1080 out of 1293 [2024-11-20 14:03:50,379 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) [2024-11-20 14:03:50,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:50,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1080 of 1293 [2024-11-20 14:03:50,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:50,649 INFO L124 PetriNetUnfolderBase]: 0/718 cut-off events. [2024-11-20 14:03:50,649 INFO L125 PetriNetUnfolderBase]: For 625/625 co-relation queries the response was YES. [2024-11-20 14:03:50,649 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. [2024-11-20 14:03:50,650 INFO L140 encePairwiseOnDemand]: 1288/1293 looper letters, 41 selfloop transitions, 2 changer transitions 3/284 dead transitions. [2024-11-20 14:03:50,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 284 transitions, 858 flow [2024-11-20 14:03:50,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:50,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:50,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5447 transitions. [2024-11-20 14:03:50,654 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8425367362722351 [2024-11-20 14:03:50,654 INFO L175 Difference]: Start difference. First operand has 375 places, 282 transitions, 762 flow. Second operand 5 states and 5447 transitions. [2024-11-20 14:03:50,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 284 transitions, 858 flow [2024-11-20 14:03:50,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 284 transitions, 857 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:50,658 INFO L231 Difference]: Finished difference. Result has 355 places, 281 transitions, 767 flow [2024-11-20 14:03:50,658 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} [2024-11-20 14:03:50,659 INFO L277 CegarLoopForPetriNet]: 381 programPoint places, -26 predicate places. [2024-11-20 14:03:50,659 INFO L471 AbstractCegarLoop]: Abstraction has has 355 places, 281 transitions, 767 flow [2024-11-20 14:03:50,659 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) [2024-11-20 14:03:50,660 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:50,660 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] [2024-11-20 14:03:50,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2024-11-20 14:03:50,660 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)] === [2024-11-20 14:03:50,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:50,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1901110780, now seen corresponding path program 1 times [2024-11-20 14:03:50,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:50,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686018237] [2024-11-20 14:03:50,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:50,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:50,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:50,719 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:50,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:50,882 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:50,882 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining) [2024-11-20 14:03:50,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (39 of 41 remaining) [2024-11-20 14:03:50,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (38 of 41 remaining) [2024-11-20 14:03:50,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (37 of 41 remaining) [2024-11-20 14:03:50,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (36 of 41 remaining) [2024-11-20 14:03:50,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (35 of 41 remaining) [2024-11-20 14:03:50,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 41 remaining) [2024-11-20 14:03:50,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 41 remaining) [2024-11-20 14:03:50,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 41 remaining) [2024-11-20 14:03:50,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 41 remaining) [2024-11-20 14:03:50,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 41 remaining) [2024-11-20 14:03:50,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 41 remaining) [2024-11-20 14:03:50,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 41 remaining) [2024-11-20 14:03:50,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 41 remaining) [2024-11-20 14:03:50,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 41 remaining) [2024-11-20 14:03:50,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 41 remaining) [2024-11-20 14:03:50,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 41 remaining) [2024-11-20 14:03:50,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 41 remaining) [2024-11-20 14:03:50,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 41 remaining) [2024-11-20 14:03:50,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 41 remaining) [2024-11-20 14:03:50,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 41 remaining) [2024-11-20 14:03:50,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 41 remaining) [2024-11-20 14:03:50,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 41 remaining) [2024-11-20 14:03:50,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 41 remaining) [2024-11-20 14:03:50,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 41 remaining) [2024-11-20 14:03:50,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 41 remaining) [2024-11-20 14:03:50,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 41 remaining) [2024-11-20 14:03:50,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 41 remaining) [2024-11-20 14:03:50,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 41 remaining) [2024-11-20 14:03:50,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 41 remaining) [2024-11-20 14:03:50,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 41 remaining) [2024-11-20 14:03:50,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 41 remaining) [2024-11-20 14:03:50,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 41 remaining) [2024-11-20 14:03:50,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 41 remaining) [2024-11-20 14:03:50,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 41 remaining) [2024-11-20 14:03:50,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 41 remaining) [2024-11-20 14:03:50,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 41 remaining) [2024-11-20 14:03:50,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 41 remaining) [2024-11-20 14:03:50,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 41 remaining) [2024-11-20 14:03:50,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 41 remaining) [2024-11-20 14:03:50,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 41 remaining) [2024-11-20 14:03:50,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2024-11-20 14:03:50,887 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:50,887 WARN L244 ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:50,887 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances. [2024-11-20 14:03:51,037 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:51,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1329 places, 1330 transitions, 5176 flow [2024-11-20 14:03:51,448 INFO L124 PetriNetUnfolderBase]: 177/2271 cut-off events. [2024-11-20 14:03:51,448 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2024-11-20 14:03:51,477 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. [2024-11-20 14:03:51,477 INFO L82 GeneralOperation]: Start removeDead. Operand has 1329 places, 1330 transitions, 5176 flow [2024-11-20 14:03:51,481 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 390 places, 323 transitions, 1907 flow [2024-11-20 14:03:51,482 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:51,482 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:51,482 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-11-20 14:03:51,483 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:51,483 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:51,484 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:51,484 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:51,484 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:51,484 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)] === [2024-11-20 14:03:51,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:51,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1203388931, now seen corresponding path program 1 times [2024-11-20 14:03:51,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:51,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310345294] [2024-11-20 14:03:51,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:51,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:51,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:51,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:51,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:51,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310345294] [2024-11-20 14:03:51,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310345294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:51,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:51,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:51,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042972614] [2024-11-20 14:03:51,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:51,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:51,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:51,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:51,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:51,622 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1079 out of 1330 [2024-11-20 14:03:51,623 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) [2024-11-20 14:03:51,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:51,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1079 of 1330 [2024-11-20 14:03:51,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:51,965 INFO L124 PetriNetUnfolderBase]: 71/1744 cut-off events. [2024-11-20 14:03:51,965 INFO L125 PetriNetUnfolderBase]: For 7736/7736 co-relation queries the response was YES. [2024-11-20 14:03:51,983 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. [2024-11-20 14:03:51,986 INFO L140 encePairwiseOnDemand]: 1324/1330 looper letters, 44 selfloop transitions, 2 changer transitions 1/319 dead transitions. [2024-11-20 14:03:51,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 319 transitions, 1991 flow [2024-11-20 14:03:51,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:51,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:51,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3287 transitions. [2024-11-20 14:03:51,988 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8238095238095238 [2024-11-20 14:03:51,988 INFO L175 Difference]: Start difference. First operand has 390 places, 323 transitions, 1907 flow. Second operand 3 states and 3287 transitions. [2024-11-20 14:03:51,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 319 transitions, 1991 flow [2024-11-20 14:03:51,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 319 transitions, 934 flow, removed 528 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:51,999 INFO L231 Difference]: Finished difference. Result has 390 places, 318 transitions, 844 flow [2024-11-20 14:03:52,000 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} [2024-11-20 14:03:52,000 INFO L277 CegarLoopForPetriNet]: 390 programPoint places, 0 predicate places. [2024-11-20 14:03:52,000 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 318 transitions, 844 flow [2024-11-20 14:03:52,000 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) [2024-11-20 14:03:52,000 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:52,000 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:52,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2024-11-20 14:03:52,000 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)] === [2024-11-20 14:03:52,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:52,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1440838266, now seen corresponding path program 1 times [2024-11-20 14:03:52,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:52,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917065716] [2024-11-20 14:03:52,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:52,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:52,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:52,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:52,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:52,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917065716] [2024-11-20 14:03:52,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917065716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:52,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:52,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:52,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781924019] [2024-11-20 14:03:52,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:52,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:52,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:52,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:52,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:52,098 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1009 out of 1330 [2024-11-20 14:03:52,099 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) [2024-11-20 14:03:52,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:52,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1009 of 1330 [2024-11-20 14:03:52,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:52,567 INFO L124 PetriNetUnfolderBase]: 36/1565 cut-off events. [2024-11-20 14:03:52,567 INFO L125 PetriNetUnfolderBase]: For 662/662 co-relation queries the response was YES. [2024-11-20 14:03:52,573 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. [2024-11-20 14:03:52,574 INFO L140 encePairwiseOnDemand]: 1324/1330 looper letters, 42 selfloop transitions, 1 changer transitions 24/313 dead transitions. [2024-11-20 14:03:52,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 313 transitions, 924 flow [2024-11-20 14:03:52,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:52,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:52,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3077 transitions. [2024-11-20 14:03:52,577 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7711779448621554 [2024-11-20 14:03:52,577 INFO L175 Difference]: Start difference. First operand has 390 places, 318 transitions, 844 flow. Second operand 3 states and 3077 transitions. [2024-11-20 14:03:52,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 313 transitions, 924 flow [2024-11-20 14:03:52,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 313 transitions, 920 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:52,580 INFO L231 Difference]: Finished difference. Result has 384 places, 289 transitions, 782 flow [2024-11-20 14:03:52,580 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} [2024-11-20 14:03:52,580 INFO L277 CegarLoopForPetriNet]: 390 programPoint places, -6 predicate places. [2024-11-20 14:03:52,581 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 289 transitions, 782 flow [2024-11-20 14:03:52,581 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) [2024-11-20 14:03:52,581 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:52,581 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] [2024-11-20 14:03:52,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2024-11-20 14:03:52,581 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)] === [2024-11-20 14:03:52,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:52,582 INFO L85 PathProgramCache]: Analyzing trace with hash 123785175, now seen corresponding path program 1 times [2024-11-20 14:03:52,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:52,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350893545] [2024-11-20 14:03:52,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:52,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:52,749 INFO L134 CoverageAnalysis]: Checked inductivity of 8126 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 8024 trivial. 0 not checked. [2024-11-20 14:03:52,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:52,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350893545] [2024-11-20 14:03:52,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350893545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:52,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:52,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:52,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255173354] [2024-11-20 14:03:52,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:52,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:52,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:52,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:52,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:52,865 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1111 out of 1330 [2024-11-20 14:03:52,866 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) [2024-11-20 14:03:52,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:52,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1111 of 1330 [2024-11-20 14:03:52,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:53,036 INFO L124 PetriNetUnfolderBase]: 0/738 cut-off events. [2024-11-20 14:03:53,036 INFO L125 PetriNetUnfolderBase]: For 661/661 co-relation queries the response was YES. [2024-11-20 14:03:53,036 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. [2024-11-20 14:03:53,037 INFO L140 encePairwiseOnDemand]: 1325/1330 looper letters, 42 selfloop transitions, 2 changer transitions 3/291 dead transitions. [2024-11-20 14:03:53,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 291 transitions, 880 flow [2024-11-20 14:03:53,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:53,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:53,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5603 transitions. [2024-11-20 14:03:53,039 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8425563909774436 [2024-11-20 14:03:53,039 INFO L175 Difference]: Start difference. First operand has 384 places, 289 transitions, 782 flow. Second operand 5 states and 5603 transitions. [2024-11-20 14:03:53,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 291 transitions, 880 flow [2024-11-20 14:03:53,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 291 transitions, 879 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:53,043 INFO L231 Difference]: Finished difference. Result has 364 places, 288 transitions, 787 flow [2024-11-20 14:03:53,043 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} [2024-11-20 14:03:53,043 INFO L277 CegarLoopForPetriNet]: 390 programPoint places, -26 predicate places. [2024-11-20 14:03:53,044 INFO L471 AbstractCegarLoop]: Abstraction has has 364 places, 288 transitions, 787 flow [2024-11-20 14:03:53,044 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) [2024-11-20 14:03:53,044 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:53,045 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] [2024-11-20 14:03:53,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2024-11-20 14:03:53,045 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)] === [2024-11-20 14:03:53,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:53,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1914193246, now seen corresponding path program 1 times [2024-11-20 14:03:53,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:53,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487415194] [2024-11-20 14:03:53,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:53,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:53,091 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:53,215 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:53,215 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:53,215 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 42 remaining) [2024-11-20 14:03:53,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (40 of 42 remaining) [2024-11-20 14:03:53,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (39 of 42 remaining) [2024-11-20 14:03:53,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (38 of 42 remaining) [2024-11-20 14:03:53,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (37 of 42 remaining) [2024-11-20 14:03:53,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (36 of 42 remaining) [2024-11-20 14:03:53,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 42 remaining) [2024-11-20 14:03:53,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 42 remaining) [2024-11-20 14:03:53,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 42 remaining) [2024-11-20 14:03:53,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 42 remaining) [2024-11-20 14:03:53,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 42 remaining) [2024-11-20 14:03:53,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 42 remaining) [2024-11-20 14:03:53,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 42 remaining) [2024-11-20 14:03:53,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 42 remaining) [2024-11-20 14:03:53,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 42 remaining) [2024-11-20 14:03:53,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 42 remaining) [2024-11-20 14:03:53,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 42 remaining) [2024-11-20 14:03:53,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 42 remaining) [2024-11-20 14:03:53,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 42 remaining) [2024-11-20 14:03:53,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 42 remaining) [2024-11-20 14:03:53,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 42 remaining) [2024-11-20 14:03:53,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 42 remaining) [2024-11-20 14:03:53,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 42 remaining) [2024-11-20 14:03:53,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 42 remaining) [2024-11-20 14:03:53,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 42 remaining) [2024-11-20 14:03:53,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 42 remaining) [2024-11-20 14:03:53,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 42 remaining) [2024-11-20 14:03:53,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 42 remaining) [2024-11-20 14:03:53,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 42 remaining) [2024-11-20 14:03:53,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 42 remaining) [2024-11-20 14:03:53,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 42 remaining) [2024-11-20 14:03:53,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 42 remaining) [2024-11-20 14:03:53,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 42 remaining) [2024-11-20 14:03:53,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 42 remaining) [2024-11-20 14:03:53,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 42 remaining) [2024-11-20 14:03:53,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 42 remaining) [2024-11-20 14:03:53,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 42 remaining) [2024-11-20 14:03:53,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 42 remaining) [2024-11-20 14:03:53,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 42 remaining) [2024-11-20 14:03:53,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 42 remaining) [2024-11-20 14:03:53,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 42 remaining) [2024-11-20 14:03:53,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 42 remaining) [2024-11-20 14:03:53,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2024-11-20 14:03:53,218 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:53,218 WARN L244 ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:53,218 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances. [2024-11-20 14:03:53,344 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:53,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1366 places, 1367 transitions, 5394 flow [2024-11-20 14:03:53,750 INFO L124 PetriNetUnfolderBase]: 182/2335 cut-off events. [2024-11-20 14:03:53,751 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2024-11-20 14:03:53,781 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. [2024-11-20 14:03:53,781 INFO L82 GeneralOperation]: Start removeDead. Operand has 1366 places, 1367 transitions, 5394 flow [2024-11-20 14:03:53,785 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 399 places, 330 transitions, 1993 flow [2024-11-20 14:03:53,786 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:53,786 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:53,786 INFO L334 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2024-11-20 14:03:53,787 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:53,787 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:53,787 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:53,787 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:53,787 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:53,787 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)] === [2024-11-20 14:03:53,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:53,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1021671683, now seen corresponding path program 1 times [2024-11-20 14:03:53,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:53,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289525857] [2024-11-20 14:03:53,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:53,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:53,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:53,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:53,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289525857] [2024-11-20 14:03:53,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289525857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:53,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:53,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:53,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524258656] [2024-11-20 14:03:53,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:53,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:53,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:53,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:53,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:53,939 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1109 out of 1367 [2024-11-20 14:03:53,940 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) [2024-11-20 14:03:53,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:53,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1109 of 1367 [2024-11-20 14:03:53,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:54,296 INFO L124 PetriNetUnfolderBase]: 73/1793 cut-off events. [2024-11-20 14:03:54,296 INFO L125 PetriNetUnfolderBase]: For 8401/8401 co-relation queries the response was YES. [2024-11-20 14:03:54,315 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. [2024-11-20 14:03:54,318 INFO L140 encePairwiseOnDemand]: 1361/1367 looper letters, 45 selfloop transitions, 2 changer transitions 1/326 dead transitions. [2024-11-20 14:03:54,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 326 transitions, 2079 flow [2024-11-20 14:03:54,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:54,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:54,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3378 transitions. [2024-11-20 14:03:54,320 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8237015362106803 [2024-11-20 14:03:54,320 INFO L175 Difference]: Start difference. First operand has 399 places, 330 transitions, 1993 flow. Second operand 3 states and 3378 transitions. [2024-11-20 14:03:54,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 326 transitions, 2079 flow [2024-11-20 14:03:54,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 326 transitions, 956 flow, removed 561 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:54,333 INFO L231 Difference]: Finished difference. Result has 399 places, 325 transitions, 864 flow [2024-11-20 14:03:54,333 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} [2024-11-20 14:03:54,334 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, 0 predicate places. [2024-11-20 14:03:54,334 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 325 transitions, 864 flow [2024-11-20 14:03:54,334 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) [2024-11-20 14:03:54,334 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:54,334 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:54,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2024-11-20 14:03:54,334 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)] === [2024-11-20 14:03:54,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:54,334 INFO L85 PathProgramCache]: Analyzing trace with hash 458777158, now seen corresponding path program 1 times [2024-11-20 14:03:54,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:54,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441313190] [2024-11-20 14:03:54,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:54,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:54,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:54,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:54,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441313190] [2024-11-20 14:03:54,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441313190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:54,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:54,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:54,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609443266] [2024-11-20 14:03:54,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:54,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:54,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:54,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:54,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:54,435 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1037 out of 1367 [2024-11-20 14:03:54,436 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) [2024-11-20 14:03:54,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:54,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1037 of 1367 [2024-11-20 14:03:54,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:54,753 INFO L124 PetriNetUnfolderBase]: 37/1609 cut-off events. [2024-11-20 14:03:54,753 INFO L125 PetriNetUnfolderBase]: For 699/699 co-relation queries the response was YES. [2024-11-20 14:03:54,769 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. [2024-11-20 14:03:54,771 INFO L140 encePairwiseOnDemand]: 1361/1367 looper letters, 43 selfloop transitions, 1 changer transitions 24/320 dead transitions. [2024-11-20 14:03:54,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 320 transitions, 946 flow [2024-11-20 14:03:54,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:54,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:54,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3162 transitions. [2024-11-20 14:03:54,773 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7710314557425019 [2024-11-20 14:03:54,773 INFO L175 Difference]: Start difference. First operand has 399 places, 325 transitions, 864 flow. Second operand 3 states and 3162 transitions. [2024-11-20 14:03:54,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 320 transitions, 946 flow [2024-11-20 14:03:54,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 320 transitions, 942 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:54,776 INFO L231 Difference]: Finished difference. Result has 393 places, 296 transitions, 802 flow [2024-11-20 14:03:54,776 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} [2024-11-20 14:03:54,776 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -6 predicate places. [2024-11-20 14:03:54,776 INFO L471 AbstractCegarLoop]: Abstraction has has 393 places, 296 transitions, 802 flow [2024-11-20 14:03:54,777 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) [2024-11-20 14:03:54,777 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:54,777 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] [2024-11-20 14:03:54,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2024-11-20 14:03:54,777 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)] === [2024-11-20 14:03:54,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:54,777 INFO L85 PathProgramCache]: Analyzing trace with hash -538149641, now seen corresponding path program 1 times [2024-11-20 14:03:54,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:54,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633785326] [2024-11-20 14:03:54,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:54,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:54,923 INFO L134 CoverageAnalysis]: Checked inductivity of 8610 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 8505 trivial. 0 not checked. [2024-11-20 14:03:54,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:54,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633785326] [2024-11-20 14:03:54,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633785326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:54,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:54,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:54,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076857290] [2024-11-20 14:03:54,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:54,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:54,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:54,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:54,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:55,066 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1142 out of 1367 [2024-11-20 14:03:55,067 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) [2024-11-20 14:03:55,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:55,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1142 of 1367 [2024-11-20 14:03:55,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:55,254 INFO L124 PetriNetUnfolderBase]: 0/758 cut-off events. [2024-11-20 14:03:55,254 INFO L125 PetriNetUnfolderBase]: For 698/698 co-relation queries the response was YES. [2024-11-20 14:03:55,254 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. [2024-11-20 14:03:55,255 INFO L140 encePairwiseOnDemand]: 1362/1367 looper letters, 43 selfloop transitions, 2 changer transitions 3/298 dead transitions. [2024-11-20 14:03:55,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 298 transitions, 902 flow [2024-11-20 14:03:55,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:55,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:55,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5759 transitions. [2024-11-20 14:03:55,257 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8425749817117776 [2024-11-20 14:03:55,258 INFO L175 Difference]: Start difference. First operand has 393 places, 296 transitions, 802 flow. Second operand 5 states and 5759 transitions. [2024-11-20 14:03:55,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 298 transitions, 902 flow [2024-11-20 14:03:55,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 298 transitions, 901 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:55,262 INFO L231 Difference]: Finished difference. Result has 373 places, 295 transitions, 807 flow [2024-11-20 14:03:55,262 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} [2024-11-20 14:03:55,262 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -26 predicate places. [2024-11-20 14:03:55,262 INFO L471 AbstractCegarLoop]: Abstraction has has 373 places, 295 transitions, 807 flow [2024-11-20 14:03:55,263 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) [2024-11-20 14:03:55,263 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:55,263 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] [2024-11-20 14:03:55,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2024-11-20 14:03:55,264 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)] === [2024-11-20 14:03:55,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:55,264 INFO L85 PathProgramCache]: Analyzing trace with hash 856173159, now seen corresponding path program 1 times [2024-11-20 14:03:55,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:55,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179770554] [2024-11-20 14:03:55,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:55,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:55,337 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:55,516 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:55,517 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:55,517 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (42 of 43 remaining) [2024-11-20 14:03:55,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (41 of 43 remaining) [2024-11-20 14:03:55,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (40 of 43 remaining) [2024-11-20 14:03:55,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (39 of 43 remaining) [2024-11-20 14:03:55,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (38 of 43 remaining) [2024-11-20 14:03:55,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (37 of 43 remaining) [2024-11-20 14:03:55,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 43 remaining) [2024-11-20 14:03:55,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 43 remaining) [2024-11-20 14:03:55,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 43 remaining) [2024-11-20 14:03:55,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 43 remaining) [2024-11-20 14:03:55,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 43 remaining) [2024-11-20 14:03:55,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 43 remaining) [2024-11-20 14:03:55,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 43 remaining) [2024-11-20 14:03:55,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 43 remaining) [2024-11-20 14:03:55,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 43 remaining) [2024-11-20 14:03:55,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 43 remaining) [2024-11-20 14:03:55,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 43 remaining) [2024-11-20 14:03:55,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 43 remaining) [2024-11-20 14:03:55,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 43 remaining) [2024-11-20 14:03:55,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 43 remaining) [2024-11-20 14:03:55,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 43 remaining) [2024-11-20 14:03:55,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 43 remaining) [2024-11-20 14:03:55,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 43 remaining) [2024-11-20 14:03:55,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 43 remaining) [2024-11-20 14:03:55,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 43 remaining) [2024-11-20 14:03:55,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 43 remaining) [2024-11-20 14:03:55,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 43 remaining) [2024-11-20 14:03:55,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 43 remaining) [2024-11-20 14:03:55,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 43 remaining) [2024-11-20 14:03:55,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 43 remaining) [2024-11-20 14:03:55,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 43 remaining) [2024-11-20 14:03:55,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 43 remaining) [2024-11-20 14:03:55,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 43 remaining) [2024-11-20 14:03:55,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 43 remaining) [2024-11-20 14:03:55,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 43 remaining) [2024-11-20 14:03:55,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 43 remaining) [2024-11-20 14:03:55,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 43 remaining) [2024-11-20 14:03:55,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 43 remaining) [2024-11-20 14:03:55,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 43 remaining) [2024-11-20 14:03:55,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 43 remaining) [2024-11-20 14:03:55,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 43 remaining) [2024-11-20 14:03:55,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 43 remaining) [2024-11-20 14:03:55,519 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 43 remaining) [2024-11-20 14:03:55,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2024-11-20 14:03:55,519 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:55,520 WARN L244 ceAbstractionStarter]: 35 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:55,520 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 36 thread instances. [2024-11-20 14:03:55,631 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:55,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1403 places, 1404 transitions, 5616 flow [2024-11-20 14:03:56,209 INFO L124 PetriNetUnfolderBase]: 187/2399 cut-off events. [2024-11-20 14:03:56,210 INFO L125 PetriNetUnfolderBase]: For 8400/8400 co-relation queries the response was YES. [2024-11-20 14:03:56,230 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. [2024-11-20 14:03:56,231 INFO L82 GeneralOperation]: Start removeDead. Operand has 1403 places, 1404 transitions, 5616 flow [2024-11-20 14:03:56,234 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 408 places, 337 transitions, 2081 flow [2024-11-20 14:03:56,235 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:56,235 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:56,235 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-11-20 14:03:56,236 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:56,236 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:56,236 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:56,236 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:56,236 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:56,236 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)] === [2024-11-20 14:03:56,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:56,237 INFO L85 PathProgramCache]: Analyzing trace with hash 791049475, now seen corresponding path program 1 times [2024-11-20 14:03:56,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:56,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036164045] [2024-11-20 14:03:56,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:56,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:56,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:56,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:56,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036164045] [2024-11-20 14:03:56,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036164045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:56,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:56,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:56,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524527685] [2024-11-20 14:03:56,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:56,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:56,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:56,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:56,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:56,387 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1139 out of 1404 [2024-11-20 14:03:56,388 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) [2024-11-20 14:03:56,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:56,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1139 of 1404 [2024-11-20 14:03:56,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:56,759 INFO L124 PetriNetUnfolderBase]: 75/1842 cut-off events. [2024-11-20 14:03:56,759 INFO L125 PetriNetUnfolderBase]: For 9103/9103 co-relation queries the response was YES. [2024-11-20 14:03:56,779 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. [2024-11-20 14:03:56,783 INFO L140 encePairwiseOnDemand]: 1398/1404 looper letters, 46 selfloop transitions, 2 changer transitions 1/333 dead transitions. [2024-11-20 14:03:56,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 333 transitions, 2169 flow [2024-11-20 14:03:56,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:56,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:56,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3469 transitions. [2024-11-20 14:03:56,784 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8235992402659069 [2024-11-20 14:03:56,784 INFO L175 Difference]: Start difference. First operand has 408 places, 337 transitions, 2081 flow. Second operand 3 states and 3469 transitions. [2024-11-20 14:03:56,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 333 transitions, 2169 flow [2024-11-20 14:03:56,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 333 transitions, 978 flow, removed 595 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:56,796 INFO L231 Difference]: Finished difference. Result has 408 places, 332 transitions, 884 flow [2024-11-20 14:03:56,797 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} [2024-11-20 14:03:56,797 INFO L277 CegarLoopForPetriNet]: 408 programPoint places, 0 predicate places. [2024-11-20 14:03:56,797 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 332 transitions, 884 flow [2024-11-20 14:03:56,797 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) [2024-11-20 14:03:56,797 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:56,797 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] [2024-11-20 14:03:56,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2024-11-20 14:03:56,797 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)] === [2024-11-20 14:03:56,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:56,798 INFO L85 PathProgramCache]: Analyzing trace with hash -816915130, now seen corresponding path program 1 times [2024-11-20 14:03:56,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:56,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610023741] [2024-11-20 14:03:56,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:56,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:56,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:56,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:56,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610023741] [2024-11-20 14:03:56,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610023741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:56,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:56,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:56,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937264845] [2024-11-20 14:03:56,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:56,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:56,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:56,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:56,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:56,918 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1065 out of 1404 [2024-11-20 14:03:56,919 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) [2024-11-20 14:03:56,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:56,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1065 of 1404 [2024-11-20 14:03:56,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:57,251 INFO L124 PetriNetUnfolderBase]: 38/1653 cut-off events. [2024-11-20 14:03:57,251 INFO L125 PetriNetUnfolderBase]: For 737/737 co-relation queries the response was YES. [2024-11-20 14:03:57,269 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. [2024-11-20 14:03:57,270 INFO L140 encePairwiseOnDemand]: 1398/1404 looper letters, 44 selfloop transitions, 1 changer transitions 24/327 dead transitions. [2024-11-20 14:03:57,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 327 transitions, 968 flow [2024-11-20 14:03:57,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:57,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:57,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3247 transitions. [2024-11-20 14:03:57,272 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7708926875593543 [2024-11-20 14:03:57,272 INFO L175 Difference]: Start difference. First operand has 408 places, 332 transitions, 884 flow. Second operand 3 states and 3247 transitions. [2024-11-20 14:03:57,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 327 transitions, 968 flow [2024-11-20 14:03:57,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 327 transitions, 964 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:57,276 INFO L231 Difference]: Finished difference. Result has 402 places, 303 transitions, 822 flow [2024-11-20 14:03:57,276 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} [2024-11-20 14:03:57,276 INFO L277 CegarLoopForPetriNet]: 408 programPoint places, -6 predicate places. [2024-11-20 14:03:57,276 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 303 transitions, 822 flow [2024-11-20 14:03:57,276 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) [2024-11-20 14:03:57,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:57,277 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] [2024-11-20 14:03:57,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2024-11-20 14:03:57,277 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-20 14:03:57,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:57,277 INFO L85 PathProgramCache]: Analyzing trace with hash 179212739, now seen corresponding path program 1 times [2024-11-20 14:03:57,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:57,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818857660] [2024-11-20 14:03:57,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:57,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:57,437 INFO L134 CoverageAnalysis]: Checked inductivity of 9108 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 9000 trivial. 0 not checked. [2024-11-20 14:03:57,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:57,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818857660] [2024-11-20 14:03:57,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818857660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:57,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:57,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:57,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068040493] [2024-11-20 14:03:57,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:57,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:57,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:57,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:57,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:03:57,557 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1173 out of 1404 [2024-11-20 14:03:57,559 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) [2024-11-20 14:03:57,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:57,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1173 of 1404 [2024-11-20 14:03:57,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:57,745 INFO L124 PetriNetUnfolderBase]: 0/778 cut-off events. [2024-11-20 14:03:57,745 INFO L125 PetriNetUnfolderBase]: For 736/736 co-relation queries the response was YES. [2024-11-20 14:03:57,746 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. [2024-11-20 14:03:57,747 INFO L140 encePairwiseOnDemand]: 1399/1404 looper letters, 44 selfloop transitions, 2 changer transitions 3/305 dead transitions. [2024-11-20 14:03:57,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 305 transitions, 924 flow [2024-11-20 14:03:57,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:03:57,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:03:57,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5915 transitions. [2024-11-20 14:03:57,749 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8425925925925926 [2024-11-20 14:03:57,749 INFO L175 Difference]: Start difference. First operand has 402 places, 303 transitions, 822 flow. Second operand 5 states and 5915 transitions. [2024-11-20 14:03:57,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 305 transitions, 924 flow [2024-11-20 14:03:57,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 305 transitions, 923 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:57,752 INFO L231 Difference]: Finished difference. Result has 382 places, 302 transitions, 827 flow [2024-11-20 14:03:57,752 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} [2024-11-20 14:03:57,753 INFO L277 CegarLoopForPetriNet]: 408 programPoint places, -26 predicate places. [2024-11-20 14:03:57,753 INFO L471 AbstractCegarLoop]: Abstraction has has 382 places, 302 transitions, 827 flow [2024-11-20 14:03:57,753 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) [2024-11-20 14:03:57,753 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:57,753 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] [2024-11-20 14:03:57,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2024-11-20 14:03:57,754 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)] === [2024-11-20 14:03:57,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:57,754 INFO L85 PathProgramCache]: Analyzing trace with hash -829332297, now seen corresponding path program 1 times [2024-11-20 14:03:57,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:57,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624790979] [2024-11-20 14:03:57,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:57,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:57,815 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:03:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:03:57,954 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:03:57,954 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:03:57,954 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 44 remaining) [2024-11-20 14:03:57,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2024-11-20 14:03:57,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2024-11-20 14:03:57,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2024-11-20 14:03:57,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2024-11-20 14:03:57,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2024-11-20 14:03:57,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 44 remaining) [2024-11-20 14:03:57,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2024-11-20 14:03:57,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2024-11-20 14:03:57,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 44 remaining) [2024-11-20 14:03:57,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2024-11-20 14:03:57,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2024-11-20 14:03:57,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2024-11-20 14:03:57,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2024-11-20 14:03:57,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2024-11-20 14:03:57,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2024-11-20 14:03:57,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2024-11-20 14:03:57,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 44 remaining) [2024-11-20 14:03:57,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 44 remaining) [2024-11-20 14:03:57,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 44 remaining) [2024-11-20 14:03:57,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 44 remaining) [2024-11-20 14:03:57,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2024-11-20 14:03:57,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 44 remaining) [2024-11-20 14:03:57,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 44 remaining) [2024-11-20 14:03:57,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 44 remaining) [2024-11-20 14:03:57,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2024-11-20 14:03:57,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2024-11-20 14:03:57,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2024-11-20 14:03:57,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2024-11-20 14:03:57,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2024-11-20 14:03:57,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2024-11-20 14:03:57,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 44 remaining) [2024-11-20 14:03:57,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2024-11-20 14:03:57,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 44 remaining) [2024-11-20 14:03:57,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2024-11-20 14:03:57,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2024-11-20 14:03:57,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2024-11-20 14:03:57,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2024-11-20 14:03:57,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2024-11-20 14:03:57,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2024-11-20 14:03:57,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2024-11-20 14:03:57,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2024-11-20 14:03:57,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2024-11-20 14:03:57,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 44 remaining) [2024-11-20 14:03:57,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2024-11-20 14:03:57,957 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:03:57,957 WARN L244 ceAbstractionStarter]: 36 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:03:57,957 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 37 thread instances. [2024-11-20 14:03:58,075 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:03:58,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1440 places, 1441 transitions, 5842 flow [2024-11-20 14:03:58,563 INFO L124 PetriNetUnfolderBase]: 192/2463 cut-off events. [2024-11-20 14:03:58,563 INFO L125 PetriNetUnfolderBase]: For 9102/9102 co-relation queries the response was YES. [2024-11-20 14:03:58,597 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. [2024-11-20 14:03:58,597 INFO L82 GeneralOperation]: Start removeDead. Operand has 1440 places, 1441 transitions, 5842 flow [2024-11-20 14:03:58,602 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 417 places, 344 transitions, 2171 flow [2024-11-20 14:03:58,603 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:03:58,603 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:03:58,603 INFO L334 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2024-11-20 14:03:58,605 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:03:58,605 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:03:58,605 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:03:58,605 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:58,605 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:03:58,605 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)] === [2024-11-20 14:03:58,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:58,606 INFO L85 PathProgramCache]: Analyzing trace with hash 511522307, now seen corresponding path program 1 times [2024-11-20 14:03:58,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:58,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535972648] [2024-11-20 14:03:58,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:58,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:58,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:58,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:58,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535972648] [2024-11-20 14:03:58,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535972648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:58,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:58,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:58,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070750936] [2024-11-20 14:03:58,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:58,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:58,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:58,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:58,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:58,912 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1169 out of 1441 [2024-11-20 14:03:58,913 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) [2024-11-20 14:03:58,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:58,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1169 of 1441 [2024-11-20 14:03:58,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:59,301 INFO L124 PetriNetUnfolderBase]: 77/1891 cut-off events. [2024-11-20 14:03:59,301 INFO L125 PetriNetUnfolderBase]: For 9843/9843 co-relation queries the response was YES. [2024-11-20 14:03:59,323 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. [2024-11-20 14:03:59,326 INFO L140 encePairwiseOnDemand]: 1435/1441 looper letters, 47 selfloop transitions, 2 changer transitions 1/340 dead transitions. [2024-11-20 14:03:59,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 340 transitions, 2261 flow [2024-11-20 14:03:59,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:59,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:59,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3560 transitions. [2024-11-20 14:03:59,328 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.823502197547999 [2024-11-20 14:03:59,328 INFO L175 Difference]: Start difference. First operand has 417 places, 344 transitions, 2171 flow. Second operand 3 states and 3560 transitions. [2024-11-20 14:03:59,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 340 transitions, 2261 flow [2024-11-20 14:03:59,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 340 transitions, 1000 flow, removed 630 selfloop flow, removed 1 redundant places. [2024-11-20 14:03:59,342 INFO L231 Difference]: Finished difference. Result has 417 places, 339 transitions, 904 flow [2024-11-20 14:03:59,342 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} [2024-11-20 14:03:59,342 INFO L277 CegarLoopForPetriNet]: 417 programPoint places, 0 predicate places. [2024-11-20 14:03:59,342 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 339 transitions, 904 flow [2024-11-20 14:03:59,342 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) [2024-11-20 14:03:59,342 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:59,343 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] [2024-11-20 14:03:59,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2024-11-20 14:03:59,343 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)] === [2024-11-20 14:03:59,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:59,343 INFO L85 PathProgramCache]: Analyzing trace with hash -972947834, now seen corresponding path program 1 times [2024-11-20 14:03:59,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:59,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952278925] [2024-11-20 14:03:59,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:59,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:59,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:03:59,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:59,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952278925] [2024-11-20 14:03:59,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952278925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:59,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:59,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:03:59,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33073168] [2024-11-20 14:03:59,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:59,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:03:59,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:59,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:03:59,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:03:59,470 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1093 out of 1441 [2024-11-20 14:03:59,471 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) [2024-11-20 14:03:59,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:03:59,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1093 of 1441 [2024-11-20 14:03:59,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:03:59,815 INFO L124 PetriNetUnfolderBase]: 39/1697 cut-off events. [2024-11-20 14:03:59,815 INFO L125 PetriNetUnfolderBase]: For 776/776 co-relation queries the response was YES. [2024-11-20 14:03:59,834 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. [2024-11-20 14:03:59,835 INFO L140 encePairwiseOnDemand]: 1435/1441 looper letters, 45 selfloop transitions, 1 changer transitions 24/334 dead transitions. [2024-11-20 14:03:59,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 334 transitions, 990 flow [2024-11-20 14:03:59,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:03:59,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:03:59,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3332 transitions. [2024-11-20 14:03:59,837 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7707610455702059 [2024-11-20 14:03:59,837 INFO L175 Difference]: Start difference. First operand has 417 places, 339 transitions, 904 flow. Second operand 3 states and 3332 transitions. [2024-11-20 14:03:59,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 334 transitions, 990 flow [2024-11-20 14:03:59,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 334 transitions, 986 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:03:59,841 INFO L231 Difference]: Finished difference. Result has 411 places, 310 transitions, 842 flow [2024-11-20 14:03:59,841 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} [2024-11-20 14:03:59,841 INFO L277 CegarLoopForPetriNet]: 417 programPoint places, -6 predicate places. [2024-11-20 14:03:59,841 INFO L471 AbstractCegarLoop]: Abstraction has has 411 places, 310 transitions, 842 flow [2024-11-20 14:03:59,842 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) [2024-11-20 14:03:59,842 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:03:59,842 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] [2024-11-20 14:03:59,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2024-11-20 14:03:59,842 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)] === [2024-11-20 14:03:59,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:03:59,842 INFO L85 PathProgramCache]: Analyzing trace with hash -745279589, now seen corresponding path program 1 times [2024-11-20 14:03:59,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:03:59,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026401655] [2024-11-20 14:03:59,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:03:59,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:03:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:03:59,994 INFO L134 CoverageAnalysis]: Checked inductivity of 9620 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 9509 trivial. 0 not checked. [2024-11-20 14:03:59,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:03:59,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026401655] [2024-11-20 14:03:59,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026401655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:03:59,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:03:59,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:03:59,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870022956] [2024-11-20 14:03:59,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:03:59,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:03:59,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:03:59,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:03:59,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:04:00,115 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1204 out of 1441 [2024-11-20 14:04:00,118 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) [2024-11-20 14:04:00,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:04:00,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1204 of 1441 [2024-11-20 14:04:00,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:04:00,410 INFO L124 PetriNetUnfolderBase]: 0/798 cut-off events. [2024-11-20 14:04:00,410 INFO L125 PetriNetUnfolderBase]: For 775/775 co-relation queries the response was YES. [2024-11-20 14:04:00,410 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. [2024-11-20 14:04:00,411 INFO L140 encePairwiseOnDemand]: 1436/1441 looper letters, 45 selfloop transitions, 2 changer transitions 3/312 dead transitions. [2024-11-20 14:04:00,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 312 transitions, 946 flow [2024-11-20 14:04:00,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:04:00,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:04:00,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6071 transitions. [2024-11-20 14:04:00,413 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8426092990978488 [2024-11-20 14:04:00,413 INFO L175 Difference]: Start difference. First operand has 411 places, 310 transitions, 842 flow. Second operand 5 states and 6071 transitions. [2024-11-20 14:04:00,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 312 transitions, 946 flow [2024-11-20 14:04:00,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 312 transitions, 945 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:04:00,417 INFO L231 Difference]: Finished difference. Result has 391 places, 309 transitions, 847 flow [2024-11-20 14:04:00,418 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} [2024-11-20 14:04:00,418 INFO L277 CegarLoopForPetriNet]: 417 programPoint places, -26 predicate places. [2024-11-20 14:04:00,418 INFO L471 AbstractCegarLoop]: Abstraction has has 391 places, 309 transitions, 847 flow [2024-11-20 14:04:00,419 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) [2024-11-20 14:04:00,419 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:00,419 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] [2024-11-20 14:04:00,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2024-11-20 14:04:00,419 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)] === [2024-11-20 14:04:00,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:00,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1748900882, now seen corresponding path program 1 times [2024-11-20 14:04:00,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:00,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797079942] [2024-11-20 14:04:00,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:00,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:04:00,498 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:04:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:04:00,699 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:04:00,699 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:04:00,699 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (44 of 45 remaining) [2024-11-20 14:04:00,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (43 of 45 remaining) [2024-11-20 14:04:00,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (42 of 45 remaining) [2024-11-20 14:04:00,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (41 of 45 remaining) [2024-11-20 14:04:00,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (40 of 45 remaining) [2024-11-20 14:04:00,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 45 remaining) [2024-11-20 14:04:00,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 45 remaining) [2024-11-20 14:04:00,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 45 remaining) [2024-11-20 14:04:00,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 45 remaining) [2024-11-20 14:04:00,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 45 remaining) [2024-11-20 14:04:00,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 45 remaining) [2024-11-20 14:04:00,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 45 remaining) [2024-11-20 14:04:00,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 45 remaining) [2024-11-20 14:04:00,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 45 remaining) [2024-11-20 14:04:00,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 45 remaining) [2024-11-20 14:04:00,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 45 remaining) [2024-11-20 14:04:00,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 45 remaining) [2024-11-20 14:04:00,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 45 remaining) [2024-11-20 14:04:00,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 45 remaining) [2024-11-20 14:04:00,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 45 remaining) [2024-11-20 14:04:00,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 45 remaining) [2024-11-20 14:04:00,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 45 remaining) [2024-11-20 14:04:00,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 45 remaining) [2024-11-20 14:04:00,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 45 remaining) [2024-11-20 14:04:00,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 45 remaining) [2024-11-20 14:04:00,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 45 remaining) [2024-11-20 14:04:00,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 45 remaining) [2024-11-20 14:04:00,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 45 remaining) [2024-11-20 14:04:00,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 45 remaining) [2024-11-20 14:04:00,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 45 remaining) [2024-11-20 14:04:00,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 45 remaining) [2024-11-20 14:04:00,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 45 remaining) [2024-11-20 14:04:00,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 45 remaining) [2024-11-20 14:04:00,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 45 remaining) [2024-11-20 14:04:00,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 45 remaining) [2024-11-20 14:04:00,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 45 remaining) [2024-11-20 14:04:00,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 45 remaining) [2024-11-20 14:04:00,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 45 remaining) [2024-11-20 14:04:00,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 45 remaining) [2024-11-20 14:04:00,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 45 remaining) [2024-11-20 14:04:00,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 45 remaining) [2024-11-20 14:04:00,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 45 remaining) [2024-11-20 14:04:00,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 45 remaining) [2024-11-20 14:04:00,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 45 remaining) [2024-11-20 14:04:00,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 45 remaining) [2024-11-20 14:04:00,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2024-11-20 14:04:00,705 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:04:00,705 WARN L244 ceAbstractionStarter]: 37 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:04:00,705 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 38 thread instances. [2024-11-20 14:04:00,825 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:04:00,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1477 places, 1478 transitions, 6072 flow [2024-11-20 14:04:01,426 INFO L124 PetriNetUnfolderBase]: 197/2527 cut-off events. [2024-11-20 14:04:01,426 INFO L125 PetriNetUnfolderBase]: For 9842/9842 co-relation queries the response was YES. [2024-11-20 14:04:01,461 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. [2024-11-20 14:04:01,462 INFO L82 GeneralOperation]: Start removeDead. Operand has 1477 places, 1478 transitions, 6072 flow [2024-11-20 14:04:01,466 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 426 places, 351 transitions, 2263 flow [2024-11-20 14:04:01,467 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:04:01,467 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:04:01,467 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2024-11-20 14:04:01,469 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:04:01,469 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:04:01,469 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:04:01,469 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:01,469 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:04:01,469 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)] === [2024-11-20 14:04:01,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:01,469 INFO L85 PathProgramCache]: Analyzing trace with hash 183090179, now seen corresponding path program 1 times [2024-11-20 14:04:01,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:01,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107439552] [2024-11-20 14:04:01,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:01,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:04:01,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:04:01,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:04:01,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107439552] [2024-11-20 14:04:01,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107439552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:04:01,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:04:01,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:04:01,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164570765] [2024-11-20 14:04:01,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:04:01,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:04:01,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:04:01,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:04:01,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:04:01,608 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1199 out of 1478 [2024-11-20 14:04:01,609 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) [2024-11-20 14:04:01,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:04:01,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1199 of 1478 [2024-11-20 14:04:01,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:04:02,035 INFO L124 PetriNetUnfolderBase]: 79/1940 cut-off events. [2024-11-20 14:04:02,035 INFO L125 PetriNetUnfolderBase]: For 10622/10622 co-relation queries the response was YES. [2024-11-20 14:04:02,060 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. [2024-11-20 14:04:02,063 INFO L140 encePairwiseOnDemand]: 1472/1478 looper letters, 48 selfloop transitions, 2 changer transitions 1/347 dead transitions. [2024-11-20 14:04:02,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 347 transitions, 2355 flow [2024-11-20 14:04:02,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:04:02,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:04:02,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3651 transitions. [2024-11-20 14:04:02,065 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8234100135317998 [2024-11-20 14:04:02,065 INFO L175 Difference]: Start difference. First operand has 426 places, 351 transitions, 2263 flow. Second operand 3 states and 3651 transitions. [2024-11-20 14:04:02,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 347 transitions, 2355 flow [2024-11-20 14:04:02,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 347 transitions, 1022 flow, removed 666 selfloop flow, removed 1 redundant places. [2024-11-20 14:04:02,079 INFO L231 Difference]: Finished difference. Result has 426 places, 346 transitions, 924 flow [2024-11-20 14:04:02,079 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} [2024-11-20 14:04:02,079 INFO L277 CegarLoopForPetriNet]: 426 programPoint places, 0 predicate places. [2024-11-20 14:04:02,079 INFO L471 AbstractCegarLoop]: Abstraction has has 426 places, 346 transitions, 924 flow [2024-11-20 14:04:02,080 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) [2024-11-20 14:04:02,080 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:02,080 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] [2024-11-20 14:04:02,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2024-11-20 14:04:02,080 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)] === [2024-11-20 14:04:02,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:02,080 INFO L85 PathProgramCache]: Analyzing trace with hash -9320954, now seen corresponding path program 1 times [2024-11-20 14:04:02,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:02,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097322052] [2024-11-20 14:04:02,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:02,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:04:02,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:04:02,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:04:02,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097322052] [2024-11-20 14:04:02,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097322052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:04:02,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:04:02,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:04:02,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950250975] [2024-11-20 14:04:02,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:04:02,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:04:02,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:04:02,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:04:02,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:04:02,192 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1121 out of 1478 [2024-11-20 14:04:02,193 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) [2024-11-20 14:04:02,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:04:02,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1121 of 1478 [2024-11-20 14:04:02,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:04:02,831 INFO L124 PetriNetUnfolderBase]: 40/1741 cut-off events. [2024-11-20 14:04:02,832 INFO L125 PetriNetUnfolderBase]: For 816/816 co-relation queries the response was YES. [2024-11-20 14:04:02,845 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. [2024-11-20 14:04:02,846 INFO L140 encePairwiseOnDemand]: 1472/1478 looper letters, 46 selfloop transitions, 1 changer transitions 24/341 dead transitions. [2024-11-20 14:04:02,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 341 transitions, 1012 flow [2024-11-20 14:04:02,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:04:02,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:04:02,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3417 transitions. [2024-11-20 14:04:02,849 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7706359945872802 [2024-11-20 14:04:02,849 INFO L175 Difference]: Start difference. First operand has 426 places, 346 transitions, 924 flow. Second operand 3 states and 3417 transitions. [2024-11-20 14:04:02,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 341 transitions, 1012 flow [2024-11-20 14:04:02,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 341 transitions, 1008 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:04:02,854 INFO L231 Difference]: Finished difference. Result has 420 places, 317 transitions, 862 flow [2024-11-20 14:04:02,854 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} [2024-11-20 14:04:02,854 INFO L277 CegarLoopForPetriNet]: 426 programPoint places, -6 predicate places. [2024-11-20 14:04:02,854 INFO L471 AbstractCegarLoop]: Abstraction has has 420 places, 317 transitions, 862 flow [2024-11-20 14:04:02,855 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) [2024-11-20 14:04:02,855 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:02,855 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] [2024-11-20 14:04:02,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2024-11-20 14:04:02,855 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)] === [2024-11-20 14:04:02,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:02,856 INFO L85 PathProgramCache]: Analyzing trace with hash -535414817, now seen corresponding path program 1 times [2024-11-20 14:04:02,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:02,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008601269] [2024-11-20 14:04:02,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:02,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:04:03,098 INFO L134 CoverageAnalysis]: Checked inductivity of 10146 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 10032 trivial. 0 not checked. [2024-11-20 14:04:03,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:04:03,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008601269] [2024-11-20 14:04:03,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008601269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:04:03,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:04:03,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:04:03,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726651594] [2024-11-20 14:04:03,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:04:03,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:04:03,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:04:03,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:04:03,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:04:03,228 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1235 out of 1478 [2024-11-20 14:04:03,231 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) [2024-11-20 14:04:03,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:04:03,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1235 of 1478 [2024-11-20 14:04:03,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:04:03,545 INFO L124 PetriNetUnfolderBase]: 0/818 cut-off events. [2024-11-20 14:04:03,545 INFO L125 PetriNetUnfolderBase]: For 815/815 co-relation queries the response was YES. [2024-11-20 14:04:03,545 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. [2024-11-20 14:04:03,546 INFO L140 encePairwiseOnDemand]: 1473/1478 looper letters, 46 selfloop transitions, 2 changer transitions 3/319 dead transitions. [2024-11-20 14:04:03,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 319 transitions, 968 flow [2024-11-20 14:04:03,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:04:03,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:04:03,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6227 transitions. [2024-11-20 14:04:03,551 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8426251691474966 [2024-11-20 14:04:03,551 INFO L175 Difference]: Start difference. First operand has 420 places, 317 transitions, 862 flow. Second operand 5 states and 6227 transitions. [2024-11-20 14:04:03,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 319 transitions, 968 flow [2024-11-20 14:04:03,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 319 transitions, 967 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:04:03,556 INFO L231 Difference]: Finished difference. Result has 400 places, 316 transitions, 867 flow [2024-11-20 14:04:03,556 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} [2024-11-20 14:04:03,556 INFO L277 CegarLoopForPetriNet]: 426 programPoint places, -26 predicate places. [2024-11-20 14:04:03,556 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 316 transitions, 867 flow [2024-11-20 14:04:03,557 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) [2024-11-20 14:04:03,557 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:03,557 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] [2024-11-20 14:04:03,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2024-11-20 14:04:03,557 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2024-11-20 14:04:03,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:03,557 INFO L85 PathProgramCache]: Analyzing trace with hash 285243308, now seen corresponding path program 1 times [2024-11-20 14:04:03,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:03,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696076840] [2024-11-20 14:04:03,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:03,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:04:03,651 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:04:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:04:04,041 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:04:04,041 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:04:04,041 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 46 remaining) [2024-11-20 14:04:04,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2024-11-20 14:04:04,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2024-11-20 14:04:04,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2024-11-20 14:04:04,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2024-11-20 14:04:04,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2024-11-20 14:04:04,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 46 remaining) [2024-11-20 14:04:04,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2024-11-20 14:04:04,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2024-11-20 14:04:04,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2024-11-20 14:04:04,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2024-11-20 14:04:04,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2024-11-20 14:04:04,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2024-11-20 14:04:04,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2024-11-20 14:04:04,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2024-11-20 14:04:04,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2024-11-20 14:04:04,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2024-11-20 14:04:04,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2024-11-20 14:04:04,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2024-11-20 14:04:04,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2024-11-20 14:04:04,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2024-11-20 14:04:04,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2024-11-20 14:04:04,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2024-11-20 14:04:04,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2024-11-20 14:04:04,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2024-11-20 14:04:04,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2024-11-20 14:04:04,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2024-11-20 14:04:04,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2024-11-20 14:04:04,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2024-11-20 14:04:04,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2024-11-20 14:04:04,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2024-11-20 14:04:04,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2024-11-20 14:04:04,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2024-11-20 14:04:04,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2024-11-20 14:04:04,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2024-11-20 14:04:04,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2024-11-20 14:04:04,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2024-11-20 14:04:04,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2024-11-20 14:04:04,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2024-11-20 14:04:04,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2024-11-20 14:04:04,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2024-11-20 14:04:04,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2024-11-20 14:04:04,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2024-11-20 14:04:04,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2024-11-20 14:04:04,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2024-11-20 14:04:04,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2024-11-20 14:04:04,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2024-11-20 14:04:04,046 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:04:04,046 WARN L244 ceAbstractionStarter]: 38 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:04:04,047 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 39 thread instances. [2024-11-20 14:04:04,170 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:04:04,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1514 places, 1515 transitions, 6306 flow [2024-11-20 14:04:04,816 INFO L124 PetriNetUnfolderBase]: 202/2591 cut-off events. [2024-11-20 14:04:04,816 INFO L125 PetriNetUnfolderBase]: For 10621/10621 co-relation queries the response was YES. [2024-11-20 14:04:04,853 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. [2024-11-20 14:04:04,853 INFO L82 GeneralOperation]: Start removeDead. Operand has 1514 places, 1515 transitions, 6306 flow [2024-11-20 14:04:04,858 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 435 places, 358 transitions, 2357 flow [2024-11-20 14:04:04,859 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:04:04,859 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:04:04,859 INFO L334 AbstractCegarLoop]: Starting to check reachability of 47 error locations. [2024-11-20 14:04:04,860 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:04:04,860 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:04:04,860 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:04:04,860 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:04,860 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:04:04,860 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)] === [2024-11-20 14:04:04,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:04,861 INFO L85 PathProgramCache]: Analyzing trace with hash -194246909, now seen corresponding path program 1 times [2024-11-20 14:04:04,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:04,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463537163] [2024-11-20 14:04:04,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:04,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:04,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:04:04,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:04:04,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:04:04,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463537163] [2024-11-20 14:04:04,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463537163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:04:04,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:04:04,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:04:04,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630651361] [2024-11-20 14:04:04,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:04:04,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:04:04,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:04:04,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:04:04,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:04:05,037 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1229 out of 1515 [2024-11-20 14:04:05,038 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) [2024-11-20 14:04:05,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:04:05,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1229 of 1515 [2024-11-20 14:04:05,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:04:05,567 INFO L124 PetriNetUnfolderBase]: 81/1989 cut-off events. [2024-11-20 14:04:05,567 INFO L125 PetriNetUnfolderBase]: For 11441/11441 co-relation queries the response was YES. [2024-11-20 14:04:05,594 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. [2024-11-20 14:04:05,598 INFO L140 encePairwiseOnDemand]: 1509/1515 looper letters, 49 selfloop transitions, 2 changer transitions 1/354 dead transitions. [2024-11-20 14:04:05,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 354 transitions, 2451 flow [2024-11-20 14:04:05,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:04:05,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:04:05,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3742 transitions. [2024-11-20 14:04:05,600 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8233223322332234 [2024-11-20 14:04:05,600 INFO L175 Difference]: Start difference. First operand has 435 places, 358 transitions, 2357 flow. Second operand 3 states and 3742 transitions. [2024-11-20 14:04:05,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 354 transitions, 2451 flow [2024-11-20 14:04:05,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 354 transitions, 1044 flow, removed 703 selfloop flow, removed 1 redundant places. [2024-11-20 14:04:05,615 INFO L231 Difference]: Finished difference. Result has 435 places, 353 transitions, 944 flow [2024-11-20 14:04:05,615 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} [2024-11-20 14:04:05,616 INFO L277 CegarLoopForPetriNet]: 435 programPoint places, 0 predicate places. [2024-11-20 14:04:05,616 INFO L471 AbstractCegarLoop]: Abstraction has has 435 places, 353 transitions, 944 flow [2024-11-20 14:04:05,616 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) [2024-11-20 14:04:05,616 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:05,616 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:04:05,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2024-11-20 14:04:05,616 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)] === [2024-11-20 14:04:05,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:05,617 INFO L85 PathProgramCache]: Analyzing trace with hash 2073965510, now seen corresponding path program 1 times [2024-11-20 14:04:05,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:05,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052692987] [2024-11-20 14:04:05,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:05,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:04:05,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:04:05,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:04:05,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052692987] [2024-11-20 14:04:05,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052692987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:04:05,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:04:05,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:04:05,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507348795] [2024-11-20 14:04:05,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:04:05,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:04:05,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:04:05,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:04:05,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:04:05,749 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1149 out of 1515 [2024-11-20 14:04:05,750 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) [2024-11-20 14:04:05,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:04:05,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1149 of 1515 [2024-11-20 14:04:05,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:04:06,181 INFO L124 PetriNetUnfolderBase]: 41/1785 cut-off events. [2024-11-20 14:04:06,181 INFO L125 PetriNetUnfolderBase]: For 857/857 co-relation queries the response was YES. [2024-11-20 14:04:06,196 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. [2024-11-20 14:04:06,197 INFO L140 encePairwiseOnDemand]: 1509/1515 looper letters, 47 selfloop transitions, 1 changer transitions 24/348 dead transitions. [2024-11-20 14:04:06,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 348 transitions, 1034 flow [2024-11-20 14:04:06,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:04:06,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:04:06,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3502 transitions. [2024-11-20 14:04:06,199 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7705170517051705 [2024-11-20 14:04:06,199 INFO L175 Difference]: Start difference. First operand has 435 places, 353 transitions, 944 flow. Second operand 3 states and 3502 transitions. [2024-11-20 14:04:06,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 348 transitions, 1034 flow [2024-11-20 14:04:06,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 348 transitions, 1030 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:04:06,203 INFO L231 Difference]: Finished difference. Result has 429 places, 324 transitions, 882 flow [2024-11-20 14:04:06,203 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} [2024-11-20 14:04:06,204 INFO L277 CegarLoopForPetriNet]: 435 programPoint places, -6 predicate places. [2024-11-20 14:04:06,204 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 324 transitions, 882 flow [2024-11-20 14:04:06,204 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) [2024-11-20 14:04:06,204 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:06,204 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] [2024-11-20 14:04:06,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2024-11-20 14:04:06,205 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)] === [2024-11-20 14:04:06,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:06,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1040200721, now seen corresponding path program 1 times [2024-11-20 14:04:06,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:06,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501675801] [2024-11-20 14:04:06,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:06,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:04:06,400 INFO L134 CoverageAnalysis]: Checked inductivity of 10686 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 10569 trivial. 0 not checked. [2024-11-20 14:04:06,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:04:06,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501675801] [2024-11-20 14:04:06,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501675801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:04:06,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:04:06,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:04:06,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083238397] [2024-11-20 14:04:06,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:04:06,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:04:06,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:04:06,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:04:06,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:04:06,567 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1266 out of 1515 [2024-11-20 14:04:06,569 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) [2024-11-20 14:04:06,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:04:06,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1266 of 1515 [2024-11-20 14:04:06,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:04:06,801 INFO L124 PetriNetUnfolderBase]: 0/838 cut-off events. [2024-11-20 14:04:06,801 INFO L125 PetriNetUnfolderBase]: For 856/856 co-relation queries the response was YES. [2024-11-20 14:04:06,802 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. [2024-11-20 14:04:06,802 INFO L140 encePairwiseOnDemand]: 1510/1515 looper letters, 47 selfloop transitions, 2 changer transitions 3/326 dead transitions. [2024-11-20 14:04:06,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 326 transitions, 990 flow [2024-11-20 14:04:06,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:04:06,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:04:06,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6383 transitions. [2024-11-20 14:04:06,805 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8426402640264027 [2024-11-20 14:04:06,805 INFO L175 Difference]: Start difference. First operand has 429 places, 324 transitions, 882 flow. Second operand 5 states and 6383 transitions. [2024-11-20 14:04:06,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 326 transitions, 990 flow [2024-11-20 14:04:06,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 326 transitions, 989 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:04:06,808 INFO L231 Difference]: Finished difference. Result has 409 places, 323 transitions, 887 flow [2024-11-20 14:04:06,808 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} [2024-11-20 14:04:06,808 INFO L277 CegarLoopForPetriNet]: 435 programPoint places, -26 predicate places. [2024-11-20 14:04:06,809 INFO L471 AbstractCegarLoop]: Abstraction has has 409 places, 323 transitions, 887 flow [2024-11-20 14:04:06,809 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) [2024-11-20 14:04:06,809 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:06,809 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] [2024-11-20 14:04:06,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2024-11-20 14:04:06,809 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)] === [2024-11-20 14:04:06,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:06,810 INFO L85 PathProgramCache]: Analyzing trace with hash 407424913, now seen corresponding path program 1 times [2024-11-20 14:04:06,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:06,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181311201] [2024-11-20 14:04:06,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:06,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:04:06,867 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:04:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:04:07,081 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:04:07,081 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:04:07,081 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 47 remaining) [2024-11-20 14:04:07,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (45 of 47 remaining) [2024-11-20 14:04:07,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (44 of 47 remaining) [2024-11-20 14:04:07,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (43 of 47 remaining) [2024-11-20 14:04:07,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (42 of 47 remaining) [2024-11-20 14:04:07,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (41 of 47 remaining) [2024-11-20 14:04:07,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 47 remaining) [2024-11-20 14:04:07,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 47 remaining) [2024-11-20 14:04:07,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 47 remaining) [2024-11-20 14:04:07,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 47 remaining) [2024-11-20 14:04:07,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 47 remaining) [2024-11-20 14:04:07,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 47 remaining) [2024-11-20 14:04:07,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 47 remaining) [2024-11-20 14:04:07,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 47 remaining) [2024-11-20 14:04:07,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 47 remaining) [2024-11-20 14:04:07,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 47 remaining) [2024-11-20 14:04:07,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 47 remaining) [2024-11-20 14:04:07,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 47 remaining) [2024-11-20 14:04:07,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 47 remaining) [2024-11-20 14:04:07,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 47 remaining) [2024-11-20 14:04:07,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 47 remaining) [2024-11-20 14:04:07,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 47 remaining) [2024-11-20 14:04:07,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 47 remaining) [2024-11-20 14:04:07,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 47 remaining) [2024-11-20 14:04:07,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 47 remaining) [2024-11-20 14:04:07,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 47 remaining) [2024-11-20 14:04:07,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 47 remaining) [2024-11-20 14:04:07,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 47 remaining) [2024-11-20 14:04:07,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 47 remaining) [2024-11-20 14:04:07,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 47 remaining) [2024-11-20 14:04:07,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 47 remaining) [2024-11-20 14:04:07,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 47 remaining) [2024-11-20 14:04:07,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 47 remaining) [2024-11-20 14:04:07,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 47 remaining) [2024-11-20 14:04:07,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 47 remaining) [2024-11-20 14:04:07,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 47 remaining) [2024-11-20 14:04:07,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 47 remaining) [2024-11-20 14:04:07,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 47 remaining) [2024-11-20 14:04:07,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 47 remaining) [2024-11-20 14:04:07,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 47 remaining) [2024-11-20 14:04:07,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 47 remaining) [2024-11-20 14:04:07,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 47 remaining) [2024-11-20 14:04:07,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 47 remaining) [2024-11-20 14:04:07,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 47 remaining) [2024-11-20 14:04:07,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 47 remaining) [2024-11-20 14:04:07,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 47 remaining) [2024-11-20 14:04:07,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 47 remaining) [2024-11-20 14:04:07,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2024-11-20 14:04:07,085 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:04:07,085 WARN L244 ceAbstractionStarter]: 39 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:04:07,085 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 40 thread instances. [2024-11-20 14:04:07,218 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:04:07,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1551 places, 1552 transitions, 6544 flow [2024-11-20 14:04:07,873 INFO L124 PetriNetUnfolderBase]: 207/2655 cut-off events. [2024-11-20 14:04:07,873 INFO L125 PetriNetUnfolderBase]: For 11440/11440 co-relation queries the response was YES. [2024-11-20 14:04:07,894 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. [2024-11-20 14:04:07,894 INFO L82 GeneralOperation]: Start removeDead. Operand has 1551 places, 1552 transitions, 6544 flow [2024-11-20 14:04:07,898 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 444 places, 365 transitions, 2453 flow [2024-11-20 14:04:07,899 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:04:07,899 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:04:07,899 INFO L334 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2024-11-20 14:04:07,900 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:04:07,900 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:04:07,900 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:04:07,900 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:07,900 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:04:07,900 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)] === [2024-11-20 14:04:07,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:07,901 INFO L85 PathProgramCache]: Analyzing trace with hash -620488957, now seen corresponding path program 1 times [2024-11-20 14:04:07,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:07,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236275014] [2024-11-20 14:04:07,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:07,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:04:07,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:04:07,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:04:07,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236275014] [2024-11-20 14:04:07,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236275014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:04:07,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:04:07,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:04:07,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985442801] [2024-11-20 14:04:07,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:04:07,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:04:07,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:04:07,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:04:07,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:04:08,048 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1259 out of 1552 [2024-11-20 14:04:08,049 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) [2024-11-20 14:04:08,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:04:08,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1259 of 1552 [2024-11-20 14:04:08,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:04:08,509 INFO L124 PetriNetUnfolderBase]: 83/2038 cut-off events. [2024-11-20 14:04:08,509 INFO L125 PetriNetUnfolderBase]: For 12301/12301 co-relation queries the response was YES. [2024-11-20 14:04:08,536 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. [2024-11-20 14:04:08,540 INFO L140 encePairwiseOnDemand]: 1546/1552 looper letters, 50 selfloop transitions, 2 changer transitions 1/361 dead transitions. [2024-11-20 14:04:08,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 361 transitions, 2549 flow [2024-11-20 14:04:08,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:04:08,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:04:08,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3833 transitions. [2024-11-20 14:04:08,541 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8232388316151202 [2024-11-20 14:04:08,542 INFO L175 Difference]: Start difference. First operand has 444 places, 365 transitions, 2453 flow. Second operand 3 states and 3833 transitions. [2024-11-20 14:04:08,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 361 transitions, 2549 flow [2024-11-20 14:04:08,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 361 transitions, 1066 flow, removed 741 selfloop flow, removed 1 redundant places. [2024-11-20 14:04:08,559 INFO L231 Difference]: Finished difference. Result has 444 places, 360 transitions, 964 flow [2024-11-20 14:04:08,559 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} [2024-11-20 14:04:08,559 INFO L277 CegarLoopForPetriNet]: 444 programPoint places, 0 predicate places. [2024-11-20 14:04:08,559 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 360 transitions, 964 flow [2024-11-20 14:04:08,560 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) [2024-11-20 14:04:08,560 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:08,560 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] [2024-11-20 14:04:08,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2024-11-20 14:04:08,560 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)] === [2024-11-20 14:04:08,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:08,560 INFO L85 PathProgramCache]: Analyzing trace with hash 981944262, now seen corresponding path program 1 times [2024-11-20 14:04:08,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:08,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606599773] [2024-11-20 14:04:08,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:08,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:04:08,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:04:08,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:04:08,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606599773] [2024-11-20 14:04:08,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606599773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:04:08,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:04:08,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:04:08,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48749984] [2024-11-20 14:04:08,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:04:08,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:04:08,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:04:08,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:04:08,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:04:08,679 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1177 out of 1552 [2024-11-20 14:04:08,680 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) [2024-11-20 14:04:08,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:04:08,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1177 of 1552 [2024-11-20 14:04:08,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:04:09,085 INFO L124 PetriNetUnfolderBase]: 42/1829 cut-off events. [2024-11-20 14:04:09,086 INFO L125 PetriNetUnfolderBase]: For 899/899 co-relation queries the response was YES. [2024-11-20 14:04:09,107 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. [2024-11-20 14:04:09,109 INFO L140 encePairwiseOnDemand]: 1546/1552 looper letters, 48 selfloop transitions, 1 changer transitions 24/355 dead transitions. [2024-11-20 14:04:09,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 355 transitions, 1056 flow [2024-11-20 14:04:09,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:04:09,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:04:09,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3587 transitions. [2024-11-20 14:04:09,111 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7704037800687286 [2024-11-20 14:04:09,111 INFO L175 Difference]: Start difference. First operand has 444 places, 360 transitions, 964 flow. Second operand 3 states and 3587 transitions. [2024-11-20 14:04:09,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 355 transitions, 1056 flow [2024-11-20 14:04:09,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 355 transitions, 1052 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:04:09,114 INFO L231 Difference]: Finished difference. Result has 438 places, 331 transitions, 902 flow [2024-11-20 14:04:09,115 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} [2024-11-20 14:04:09,115 INFO L277 CegarLoopForPetriNet]: 444 programPoint places, -6 predicate places. [2024-11-20 14:04:09,115 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 331 transitions, 902 flow [2024-11-20 14:04:09,115 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) [2024-11-20 14:04:09,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:09,115 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] [2024-11-20 14:04:09,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2024-11-20 14:04:09,115 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)] === [2024-11-20 14:04:09,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:09,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1789906219, now seen corresponding path program 1 times [2024-11-20 14:04:09,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:09,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041256755] [2024-11-20 14:04:09,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:09,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:04:09,299 INFO L134 CoverageAnalysis]: Checked inductivity of 11240 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 11120 trivial. 0 not checked. [2024-11-20 14:04:09,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:04:09,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041256755] [2024-11-20 14:04:09,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041256755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:04:09,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:04:09,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:04:09,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012037368] [2024-11-20 14:04:09,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:04:09,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:04:09,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:04:09,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:04:09,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:04:09,411 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1297 out of 1552 [2024-11-20 14:04:09,412 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) [2024-11-20 14:04:09,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:04:09,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1297 of 1552 [2024-11-20 14:04:09,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:04:09,618 INFO L124 PetriNetUnfolderBase]: 0/858 cut-off events. [2024-11-20 14:04:09,618 INFO L125 PetriNetUnfolderBase]: For 898/898 co-relation queries the response was YES. [2024-11-20 14:04:09,618 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. [2024-11-20 14:04:09,619 INFO L140 encePairwiseOnDemand]: 1547/1552 looper letters, 48 selfloop transitions, 2 changer transitions 3/333 dead transitions. [2024-11-20 14:04:09,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 333 transitions, 1012 flow [2024-11-20 14:04:09,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:04:09,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:04:09,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6539 transitions. [2024-11-20 14:04:09,622 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8426546391752577 [2024-11-20 14:04:09,622 INFO L175 Difference]: Start difference. First operand has 438 places, 331 transitions, 902 flow. Second operand 5 states and 6539 transitions. [2024-11-20 14:04:09,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 333 transitions, 1012 flow [2024-11-20 14:04:09,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 333 transitions, 1011 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:04:09,625 INFO L231 Difference]: Finished difference. Result has 418 places, 330 transitions, 907 flow [2024-11-20 14:04:09,626 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} [2024-11-20 14:04:09,626 INFO L277 CegarLoopForPetriNet]: 444 programPoint places, -26 predicate places. [2024-11-20 14:04:09,626 INFO L471 AbstractCegarLoop]: Abstraction has has 418 places, 330 transitions, 907 flow [2024-11-20 14:04:09,627 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) [2024-11-20 14:04:09,627 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:09,627 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] [2024-11-20 14:04:09,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2024-11-20 14:04:09,627 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)] === [2024-11-20 14:04:09,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:09,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1461224643, now seen corresponding path program 1 times [2024-11-20 14:04:09,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:09,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508291402] [2024-11-20 14:04:09,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:09,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:04:09,698 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:04:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:04:09,872 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:04:09,872 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:04:09,872 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (47 of 48 remaining) [2024-11-20 14:04:09,872 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (46 of 48 remaining) [2024-11-20 14:04:09,872 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (45 of 48 remaining) [2024-11-20 14:04:09,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (44 of 48 remaining) [2024-11-20 14:04:09,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (43 of 48 remaining) [2024-11-20 14:04:09,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (42 of 48 remaining) [2024-11-20 14:04:09,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 48 remaining) [2024-11-20 14:04:09,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 48 remaining) [2024-11-20 14:04:09,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 48 remaining) [2024-11-20 14:04:09,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 48 remaining) [2024-11-20 14:04:09,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 48 remaining) [2024-11-20 14:04:09,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 48 remaining) [2024-11-20 14:04:09,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 48 remaining) [2024-11-20 14:04:09,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 48 remaining) [2024-11-20 14:04:09,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 48 remaining) [2024-11-20 14:04:09,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 48 remaining) [2024-11-20 14:04:09,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 48 remaining) [2024-11-20 14:04:09,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 48 remaining) [2024-11-20 14:04:09,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 48 remaining) [2024-11-20 14:04:09,873 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 48 remaining) [2024-11-20 14:04:09,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 48 remaining) [2024-11-20 14:04:09,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 48 remaining) [2024-11-20 14:04:09,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 48 remaining) [2024-11-20 14:04:09,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 48 remaining) [2024-11-20 14:04:09,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 48 remaining) [2024-11-20 14:04:09,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 48 remaining) [2024-11-20 14:04:09,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 48 remaining) [2024-11-20 14:04:09,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 48 remaining) [2024-11-20 14:04:09,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 48 remaining) [2024-11-20 14:04:09,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 48 remaining) [2024-11-20 14:04:09,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 48 remaining) [2024-11-20 14:04:09,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 48 remaining) [2024-11-20 14:04:09,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 48 remaining) [2024-11-20 14:04:09,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 48 remaining) [2024-11-20 14:04:09,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 48 remaining) [2024-11-20 14:04:09,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 48 remaining) [2024-11-20 14:04:09,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 48 remaining) [2024-11-20 14:04:09,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 48 remaining) [2024-11-20 14:04:09,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 48 remaining) [2024-11-20 14:04:09,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 48 remaining) [2024-11-20 14:04:09,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 48 remaining) [2024-11-20 14:04:09,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 48 remaining) [2024-11-20 14:04:09,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 48 remaining) [2024-11-20 14:04:09,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 48 remaining) [2024-11-20 14:04:09,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 48 remaining) [2024-11-20 14:04:09,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 48 remaining) [2024-11-20 14:04:09,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 48 remaining) [2024-11-20 14:04:09,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 48 remaining) [2024-11-20 14:04:09,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2024-11-20 14:04:09,876 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:04:09,876 WARN L244 ceAbstractionStarter]: 40 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:04:09,876 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 41 thread instances. [2024-11-20 14:04:10,026 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:04:10,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1588 places, 1589 transitions, 6786 flow [2024-11-20 14:04:10,738 INFO L124 PetriNetUnfolderBase]: 212/2719 cut-off events. [2024-11-20 14:04:10,738 INFO L125 PetriNetUnfolderBase]: For 12300/12300 co-relation queries the response was YES. [2024-11-20 14:04:10,779 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. [2024-11-20 14:04:10,780 INFO L82 GeneralOperation]: Start removeDead. Operand has 1588 places, 1589 transitions, 6786 flow [2024-11-20 14:04:10,785 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 453 places, 372 transitions, 2551 flow [2024-11-20 14:04:10,786 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:04:10,786 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:04:10,786 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2024-11-20 14:04:10,788 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:04:10,788 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:04:10,788 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:04:10,788 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:10,788 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:04:10,788 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)] === [2024-11-20 14:04:10,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:10,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1095635965, now seen corresponding path program 1 times [2024-11-20 14:04:10,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:10,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878049479] [2024-11-20 14:04:10,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:10,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:04:10,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:04:10,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:04:10,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878049479] [2024-11-20 14:04:10,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878049479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:04:10,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:04:10,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:04:10,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995249089] [2024-11-20 14:04:10,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:04:10,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:04:10,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:04:10,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:04:10,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:04:10,973 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1289 out of 1589 [2024-11-20 14:04:10,974 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) [2024-11-20 14:04:10,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:04:10,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1289 of 1589 [2024-11-20 14:04:10,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:04:11,471 INFO L124 PetriNetUnfolderBase]: 85/2087 cut-off events. [2024-11-20 14:04:11,471 INFO L125 PetriNetUnfolderBase]: For 13203/13203 co-relation queries the response was YES. [2024-11-20 14:04:11,500 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. [2024-11-20 14:04:11,504 INFO L140 encePairwiseOnDemand]: 1583/1589 looper letters, 51 selfloop transitions, 2 changer transitions 1/368 dead transitions. [2024-11-20 14:04:11,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 368 transitions, 2649 flow [2024-11-20 14:04:11,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:04:11,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:04:11,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3924 transitions. [2024-11-20 14:04:11,506 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8231592196349906 [2024-11-20 14:04:11,506 INFO L175 Difference]: Start difference. First operand has 453 places, 372 transitions, 2551 flow. Second operand 3 states and 3924 transitions. [2024-11-20 14:04:11,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 368 transitions, 2649 flow [2024-11-20 14:04:11,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 368 transitions, 1088 flow, removed 780 selfloop flow, removed 1 redundant places. [2024-11-20 14:04:11,524 INFO L231 Difference]: Finished difference. Result has 453 places, 367 transitions, 984 flow [2024-11-20 14:04:11,524 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} [2024-11-20 14:04:11,524 INFO L277 CegarLoopForPetriNet]: 453 programPoint places, 0 predicate places. [2024-11-20 14:04:11,524 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 367 transitions, 984 flow [2024-11-20 14:04:11,524 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) [2024-11-20 14:04:11,524 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:11,525 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] [2024-11-20 14:04:11,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2024-11-20 14:04:11,525 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)] === [2024-11-20 14:04:11,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:11,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1009582598, now seen corresponding path program 1 times [2024-11-20 14:04:11,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:11,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130194025] [2024-11-20 14:04:11,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:11,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:04:11,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:04:11,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:04:11,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130194025] [2024-11-20 14:04:11,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130194025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:04:11,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:04:11,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:04:11,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271566146] [2024-11-20 14:04:11,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:04:11,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:04:11,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:04:11,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:04:11,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:04:11,658 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1205 out of 1589 [2024-11-20 14:04:11,659 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) [2024-11-20 14:04:11,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:04:11,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1205 of 1589 [2024-11-20 14:04:11,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:04:12,193 INFO L124 PetriNetUnfolderBase]: 43/1873 cut-off events. [2024-11-20 14:04:12,193 INFO L125 PetriNetUnfolderBase]: For 942/942 co-relation queries the response was YES. [2024-11-20 14:04:12,205 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. [2024-11-20 14:04:12,206 INFO L140 encePairwiseOnDemand]: 1583/1589 looper letters, 49 selfloop transitions, 1 changer transitions 24/362 dead transitions. [2024-11-20 14:04:12,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 362 transitions, 1078 flow [2024-11-20 14:04:12,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:04:12,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:04:12,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3672 transitions. [2024-11-20 14:04:12,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7702957835116425 [2024-11-20 14:04:12,208 INFO L175 Difference]: Start difference. First operand has 453 places, 367 transitions, 984 flow. Second operand 3 states and 3672 transitions. [2024-11-20 14:04:12,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 362 transitions, 1078 flow [2024-11-20 14:04:12,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 362 transitions, 1074 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:04:12,211 INFO L231 Difference]: Finished difference. Result has 447 places, 338 transitions, 922 flow [2024-11-20 14:04:12,211 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} [2024-11-20 14:04:12,211 INFO L277 CegarLoopForPetriNet]: 453 programPoint places, -6 predicate places. [2024-11-20 14:04:12,211 INFO L471 AbstractCegarLoop]: Abstraction has has 447 places, 338 transitions, 922 flow [2024-11-20 14:04:12,212 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) [2024-11-20 14:04:12,212 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:12,212 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] [2024-11-20 14:04:12,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2024-11-20 14:04:12,212 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)] === [2024-11-20 14:04:12,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:12,212 INFO L85 PathProgramCache]: Analyzing trace with hash 517872883, now seen corresponding path program 1 times [2024-11-20 14:04:12,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:12,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208394378] [2024-11-20 14:04:12,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:12,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:04:12,353 INFO L134 CoverageAnalysis]: Checked inductivity of 11808 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 11685 trivial. 0 not checked. [2024-11-20 14:04:12,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:04:12,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208394378] [2024-11-20 14:04:12,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208394378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:04:12,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:04:12,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:04:12,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649071604] [2024-11-20 14:04:12,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:04:12,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:04:12,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:04:12,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:04:12,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:04:12,462 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1328 out of 1589 [2024-11-20 14:04:12,464 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) [2024-11-20 14:04:12,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:04:12,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1328 of 1589 [2024-11-20 14:04:12,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:04:12,719 INFO L124 PetriNetUnfolderBase]: 0/878 cut-off events. [2024-11-20 14:04:12,719 INFO L125 PetriNetUnfolderBase]: For 941/941 co-relation queries the response was YES. [2024-11-20 14:04:12,719 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. [2024-11-20 14:04:12,720 INFO L140 encePairwiseOnDemand]: 1584/1589 looper letters, 49 selfloop transitions, 2 changer transitions 3/340 dead transitions. [2024-11-20 14:04:12,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 340 transitions, 1034 flow [2024-11-20 14:04:12,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:04:12,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:04:12,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6695 transitions. [2024-11-20 14:04:12,723 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8426683448709881 [2024-11-20 14:04:12,723 INFO L175 Difference]: Start difference. First operand has 447 places, 338 transitions, 922 flow. Second operand 5 states and 6695 transitions. [2024-11-20 14:04:12,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 340 transitions, 1034 flow [2024-11-20 14:04:12,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 340 transitions, 1033 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:04:12,726 INFO L231 Difference]: Finished difference. Result has 427 places, 337 transitions, 927 flow [2024-11-20 14:04:12,727 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} [2024-11-20 14:04:12,727 INFO L277 CegarLoopForPetriNet]: 453 programPoint places, -26 predicate places. [2024-11-20 14:04:12,727 INFO L471 AbstractCegarLoop]: Abstraction has has 427 places, 337 transitions, 927 flow [2024-11-20 14:04:12,727 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) [2024-11-20 14:04:12,727 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:12,728 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] [2024-11-20 14:04:12,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2024-11-20 14:04:12,728 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)] === [2024-11-20 14:04:12,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:12,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1833571760, now seen corresponding path program 1 times [2024-11-20 14:04:12,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:12,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6122076] [2024-11-20 14:04:12,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:12,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:04:12,799 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:04:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:04:13,008 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:04:13,009 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:04:13,009 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2024-11-20 14:04:13,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2024-11-20 14:04:13,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2024-11-20 14:04:13,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2024-11-20 14:04:13,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2024-11-20 14:04:13,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2024-11-20 14:04:13,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (42 of 49 remaining) [2024-11-20 14:04:13,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2024-11-20 14:04:13,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2024-11-20 14:04:13,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2024-11-20 14:04:13,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2024-11-20 14:04:13,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2024-11-20 14:04:13,010 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2024-11-20 14:04:13,010 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2024-11-20 14:04:13,010 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2024-11-20 14:04:13,010 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2024-11-20 14:04:13,010 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2024-11-20 14:04:13,010 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2024-11-20 14:04:13,010 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2024-11-20 14:04:13,010 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2024-11-20 14:04:13,010 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2024-11-20 14:04:13,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2024-11-20 14:04:13,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2024-11-20 14:04:13,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2024-11-20 14:04:13,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2024-11-20 14:04:13,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2024-11-20 14:04:13,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2024-11-20 14:04:13,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2024-11-20 14:04:13,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2024-11-20 14:04:13,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2024-11-20 14:04:13,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2024-11-20 14:04:13,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2024-11-20 14:04:13,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2024-11-20 14:04:13,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2024-11-20 14:04:13,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2024-11-20 14:04:13,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2024-11-20 14:04:13,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2024-11-20 14:04:13,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2024-11-20 14:04:13,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2024-11-20 14:04:13,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2024-11-20 14:04:13,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2024-11-20 14:04:13,012 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2024-11-20 14:04:13,012 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2024-11-20 14:04:13,012 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2024-11-20 14:04:13,012 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2024-11-20 14:04:13,012 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2024-11-20 14:04:13,012 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2024-11-20 14:04:13,012 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2024-11-20 14:04:13,012 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2024-11-20 14:04:13,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2024-11-20 14:04:13,012 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:04:13,012 WARN L244 ceAbstractionStarter]: 41 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:04:13,012 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 42 thread instances. [2024-11-20 14:04:13,160 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:04:13,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1625 places, 1626 transitions, 7032 flow [2024-11-20 14:04:13,759 INFO L124 PetriNetUnfolderBase]: 217/2783 cut-off events. [2024-11-20 14:04:13,760 INFO L125 PetriNetUnfolderBase]: For 13202/13202 co-relation queries the response was YES. [2024-11-20 14:04:13,803 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. [2024-11-20 14:04:13,803 INFO L82 GeneralOperation]: Start removeDead. Operand has 1625 places, 1626 transitions, 7032 flow [2024-11-20 14:04:13,809 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 462 places, 379 transitions, 2651 flow [2024-11-20 14:04:13,810 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:04:13,810 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:04:13,810 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-20 14:04:13,811 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:04:13,811 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:04:13,811 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:04:13,811 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:13,811 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:04:13,811 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)] === [2024-11-20 14:04:13,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:13,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1619687933, now seen corresponding path program 1 times [2024-11-20 14:04:13,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:13,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751142569] [2024-11-20 14:04:13,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:13,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:04:13,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:04:13,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:04:13,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751142569] [2024-11-20 14:04:13,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751142569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:04:13,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:04:13,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:04:13,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910893971] [2024-11-20 14:04:13,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:04:13,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:04:13,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:04:13,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:04:13,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:04:13,987 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1319 out of 1626 [2024-11-20 14:04:13,989 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) [2024-11-20 14:04:13,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:04:13,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1319 of 1626 [2024-11-20 14:04:13,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:04:14,567 INFO L124 PetriNetUnfolderBase]: 87/2136 cut-off events. [2024-11-20 14:04:14,567 INFO L125 PetriNetUnfolderBase]: For 14148/14148 co-relation queries the response was YES. [2024-11-20 14:04:14,592 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. [2024-11-20 14:04:14,596 INFO L140 encePairwiseOnDemand]: 1620/1626 looper letters, 52 selfloop transitions, 2 changer transitions 1/375 dead transitions. [2024-11-20 14:04:14,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 375 transitions, 2751 flow [2024-11-20 14:04:14,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:04:14,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:04:14,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4015 transitions. [2024-11-20 14:04:14,597 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8230832308323083 [2024-11-20 14:04:14,598 INFO L175 Difference]: Start difference. First operand has 462 places, 379 transitions, 2651 flow. Second operand 3 states and 4015 transitions. [2024-11-20 14:04:14,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 375 transitions, 2751 flow [2024-11-20 14:04:14,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 375 transitions, 1110 flow, removed 820 selfloop flow, removed 1 redundant places. [2024-11-20 14:04:14,617 INFO L231 Difference]: Finished difference. Result has 462 places, 374 transitions, 1004 flow [2024-11-20 14:04:14,618 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} [2024-11-20 14:04:14,618 INFO L277 CegarLoopForPetriNet]: 462 programPoint places, 0 predicate places. [2024-11-20 14:04:14,618 INFO L471 AbstractCegarLoop]: Abstraction has has 462 places, 374 transitions, 1004 flow [2024-11-20 14:04:14,618 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) [2024-11-20 14:04:14,618 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:14,618 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] [2024-11-20 14:04:14,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2024-11-20 14:04:14,619 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)] === [2024-11-20 14:04:14,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:14,619 INFO L85 PathProgramCache]: Analyzing trace with hash -2138086778, now seen corresponding path program 1 times [2024-11-20 14:04:14,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:14,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567210871] [2024-11-20 14:04:14,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:14,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:04:14,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:04:14,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:04:14,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567210871] [2024-11-20 14:04:14,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567210871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:04:14,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:04:14,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:04:14,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160794926] [2024-11-20 14:04:14,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:04:14,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:04:14,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:04:14,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:04:14,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:04:14,748 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1233 out of 1626 [2024-11-20 14:04:14,749 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) [2024-11-20 14:04:14,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:04:14,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1233 of 1626 [2024-11-20 14:04:14,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:04:15,197 INFO L124 PetriNetUnfolderBase]: 44/1917 cut-off events. [2024-11-20 14:04:15,197 INFO L125 PetriNetUnfolderBase]: For 986/986 co-relation queries the response was YES. [2024-11-20 14:04:15,221 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. [2024-11-20 14:04:15,223 INFO L140 encePairwiseOnDemand]: 1620/1626 looper letters, 50 selfloop transitions, 1 changer transitions 24/369 dead transitions. [2024-11-20 14:04:15,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 369 transitions, 1100 flow [2024-11-20 14:04:15,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:04:15,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:04:15,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3757 transitions. [2024-11-20 14:04:15,225 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7701927019270193 [2024-11-20 14:04:15,225 INFO L175 Difference]: Start difference. First operand has 462 places, 374 transitions, 1004 flow. Second operand 3 states and 3757 transitions. [2024-11-20 14:04:15,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 369 transitions, 1100 flow [2024-11-20 14:04:15,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 369 transitions, 1096 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:04:15,229 INFO L231 Difference]: Finished difference. Result has 456 places, 345 transitions, 942 flow [2024-11-20 14:04:15,229 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} [2024-11-20 14:04:15,229 INFO L277 CegarLoopForPetriNet]: 462 programPoint places, -6 predicate places. [2024-11-20 14:04:15,229 INFO L471 AbstractCegarLoop]: Abstraction has has 456 places, 345 transitions, 942 flow [2024-11-20 14:04:15,229 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) [2024-11-20 14:04:15,229 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:15,230 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] [2024-11-20 14:04:15,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2024-11-20 14:04:15,230 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)] === [2024-11-20 14:04:15,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:15,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1965073241, now seen corresponding path program 1 times [2024-11-20 14:04:15,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:15,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506451892] [2024-11-20 14:04:15,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:15,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:15,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:04:15,377 INFO L134 CoverageAnalysis]: Checked inductivity of 12390 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 12264 trivial. 0 not checked. [2024-11-20 14:04:15,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:04:15,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506451892] [2024-11-20 14:04:15,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506451892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:04:15,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:04:15,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:04:15,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365816701] [2024-11-20 14:04:15,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:04:15,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:04:15,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:04:15,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:04:15,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:04:15,511 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1359 out of 1626 [2024-11-20 14:04:15,513 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) [2024-11-20 14:04:15,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:04:15,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1359 of 1626 [2024-11-20 14:04:15,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:04:15,741 INFO L124 PetriNetUnfolderBase]: 0/898 cut-off events. [2024-11-20 14:04:15,741 INFO L125 PetriNetUnfolderBase]: For 985/985 co-relation queries the response was YES. [2024-11-20 14:04:15,741 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. [2024-11-20 14:04:15,742 INFO L140 encePairwiseOnDemand]: 1621/1626 looper letters, 50 selfloop transitions, 2 changer transitions 3/347 dead transitions. [2024-11-20 14:04:15,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 347 transitions, 1056 flow [2024-11-20 14:04:15,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:04:15,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:04:15,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6851 transitions. [2024-11-20 14:04:15,745 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8426814268142682 [2024-11-20 14:04:15,745 INFO L175 Difference]: Start difference. First operand has 456 places, 345 transitions, 942 flow. Second operand 5 states and 6851 transitions. [2024-11-20 14:04:15,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 347 transitions, 1056 flow [2024-11-20 14:04:15,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 347 transitions, 1055 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:04:15,748 INFO L231 Difference]: Finished difference. Result has 436 places, 344 transitions, 947 flow [2024-11-20 14:04:15,749 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} [2024-11-20 14:04:15,749 INFO L277 CegarLoopForPetriNet]: 462 programPoint places, -26 predicate places. [2024-11-20 14:04:15,749 INFO L471 AbstractCegarLoop]: Abstraction has has 436 places, 344 transitions, 947 flow [2024-11-20 14:04:15,749 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) [2024-11-20 14:04:15,749 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:15,749 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] [2024-11-20 14:04:15,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2024-11-20 14:04:15,750 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)] === [2024-11-20 14:04:15,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:15,750 INFO L85 PathProgramCache]: Analyzing trace with hash -2032767894, now seen corresponding path program 1 times [2024-11-20 14:04:15,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:15,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896580843] [2024-11-20 14:04:15,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:15,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:04:15,818 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:04:15,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:04:16,113 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:04:16,113 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:04:16,114 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (49 of 50 remaining) [2024-11-20 14:04:16,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (48 of 50 remaining) [2024-11-20 14:04:16,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (47 of 50 remaining) [2024-11-20 14:04:16,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (46 of 50 remaining) [2024-11-20 14:04:16,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (45 of 50 remaining) [2024-11-20 14:04:16,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (44 of 50 remaining) [2024-11-20 14:04:16,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 50 remaining) [2024-11-20 14:04:16,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 50 remaining) [2024-11-20 14:04:16,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 50 remaining) [2024-11-20 14:04:16,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 50 remaining) [2024-11-20 14:04:16,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 50 remaining) [2024-11-20 14:04:16,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 50 remaining) [2024-11-20 14:04:16,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 50 remaining) [2024-11-20 14:04:16,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 50 remaining) [2024-11-20 14:04:16,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 50 remaining) [2024-11-20 14:04:16,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 50 remaining) [2024-11-20 14:04:16,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 50 remaining) [2024-11-20 14:04:16,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 50 remaining) [2024-11-20 14:04:16,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 50 remaining) [2024-11-20 14:04:16,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 50 remaining) [2024-11-20 14:04:16,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 50 remaining) [2024-11-20 14:04:16,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 50 remaining) [2024-11-20 14:04:16,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 50 remaining) [2024-11-20 14:04:16,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 50 remaining) [2024-11-20 14:04:16,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 50 remaining) [2024-11-20 14:04:16,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 50 remaining) [2024-11-20 14:04:16,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 50 remaining) [2024-11-20 14:04:16,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 50 remaining) [2024-11-20 14:04:16,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 50 remaining) [2024-11-20 14:04:16,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 50 remaining) [2024-11-20 14:04:16,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 50 remaining) [2024-11-20 14:04:16,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 50 remaining) [2024-11-20 14:04:16,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 50 remaining) [2024-11-20 14:04:16,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 50 remaining) [2024-11-20 14:04:16,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 50 remaining) [2024-11-20 14:04:16,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 50 remaining) [2024-11-20 14:04:16,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 50 remaining) [2024-11-20 14:04:16,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 50 remaining) [2024-11-20 14:04:16,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 50 remaining) [2024-11-20 14:04:16,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 50 remaining) [2024-11-20 14:04:16,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 50 remaining) [2024-11-20 14:04:16,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 50 remaining) [2024-11-20 14:04:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 50 remaining) [2024-11-20 14:04:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 50 remaining) [2024-11-20 14:04:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 50 remaining) [2024-11-20 14:04:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 50 remaining) [2024-11-20 14:04:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 50 remaining) [2024-11-20 14:04:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 50 remaining) [2024-11-20 14:04:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 50 remaining) [2024-11-20 14:04:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 50 remaining) [2024-11-20 14:04:16,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2024-11-20 14:04:16,119 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:04:16,120 WARN L244 ceAbstractionStarter]: 42 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:04:16,120 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 43 thread instances. [2024-11-20 14:04:16,297 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:04:16,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1662 places, 1663 transitions, 7282 flow [2024-11-20 14:04:16,918 INFO L124 PetriNetUnfolderBase]: 222/2847 cut-off events. [2024-11-20 14:04:16,918 INFO L125 PetriNetUnfolderBase]: For 14147/14147 co-relation queries the response was YES. [2024-11-20 14:04:16,965 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. [2024-11-20 14:04:16,965 INFO L82 GeneralOperation]: Start removeDead. Operand has 1662 places, 1663 transitions, 7282 flow [2024-11-20 14:04:16,971 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 471 places, 386 transitions, 2753 flow [2024-11-20 14:04:16,971 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:04:16,971 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:04:16,971 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-11-20 14:04:16,972 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:04:16,972 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:04:16,972 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:04:16,972 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:16,972 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:04:16,972 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)] === [2024-11-20 14:04:16,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:16,973 INFO L85 PathProgramCache]: Analyzing trace with hash 2102322435, now seen corresponding path program 1 times [2024-11-20 14:04:16,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:16,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447958186] [2024-11-20 14:04:16,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:16,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:04:17,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:04:17,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:04:17,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447958186] [2024-11-20 14:04:17,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447958186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:04:17,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:04:17,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:04:17,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347271897] [2024-11-20 14:04:17,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:04:17,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:04:17,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:04:17,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:04:17,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:04:17,153 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1349 out of 1663 [2024-11-20 14:04:17,154 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) [2024-11-20 14:04:17,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:04:17,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1349 of 1663 [2024-11-20 14:04:17,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:04:17,743 INFO L124 PetriNetUnfolderBase]: 89/2185 cut-off events. [2024-11-20 14:04:17,744 INFO L125 PetriNetUnfolderBase]: For 15137/15137 co-relation queries the response was YES. [2024-11-20 14:04:17,775 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. [2024-11-20 14:04:17,779 INFO L140 encePairwiseOnDemand]: 1657/1663 looper letters, 53 selfloop transitions, 2 changer transitions 1/382 dead transitions. [2024-11-20 14:04:17,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 382 transitions, 2855 flow [2024-11-20 14:04:17,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:04:17,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:04:17,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4106 transitions. [2024-11-20 14:04:17,781 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8230106233714172 [2024-11-20 14:04:17,781 INFO L175 Difference]: Start difference. First operand has 471 places, 386 transitions, 2753 flow. Second operand 3 states and 4106 transitions. [2024-11-20 14:04:17,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 382 transitions, 2855 flow [2024-11-20 14:04:17,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 382 transitions, 1132 flow, removed 861 selfloop flow, removed 1 redundant places. [2024-11-20 14:04:17,800 INFO L231 Difference]: Finished difference. Result has 471 places, 381 transitions, 1024 flow [2024-11-20 14:04:17,801 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} [2024-11-20 14:04:17,801 INFO L277 CegarLoopForPetriNet]: 471 programPoint places, 0 predicate places. [2024-11-20 14:04:17,801 INFO L471 AbstractCegarLoop]: Abstraction has has 471 places, 381 transitions, 1024 flow [2024-11-20 14:04:17,801 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) [2024-11-20 14:04:17,801 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:17,801 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] [2024-11-20 14:04:17,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2024-11-20 14:04:17,801 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)] === [2024-11-20 14:04:17,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:17,802 INFO L85 PathProgramCache]: Analyzing trace with hash 128870726, now seen corresponding path program 1 times [2024-11-20 14:04:17,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:17,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629530720] [2024-11-20 14:04:17,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:17,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:04:17,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:04:17,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:04:17,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629530720] [2024-11-20 14:04:17,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629530720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:04:17,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:04:17,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:04:17,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903528758] [2024-11-20 14:04:17,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:04:17,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:04:17,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:04:17,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:04:17,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:04:17,931 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1261 out of 1663 [2024-11-20 14:04:17,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 381 transitions, 1024 flow. Second operand has 3 states, 3 states have (on average 1262.0) internal successors, (3786), 3 states have internal predecessors, (3786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:04:17,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:04:17,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1261 of 1663 [2024-11-20 14:04:17,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:04:18,389 INFO L124 PetriNetUnfolderBase]: 45/1961 cut-off events. [2024-11-20 14:04:18,389 INFO L125 PetriNetUnfolderBase]: For 1031/1031 co-relation queries the response was YES. [2024-11-20 14:04:18,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2451 conditions, 1961 events. 45/1961 cut-off events. For 1031/1031 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4681 event pairs, 0 based on Foata normal form. 44/1916 useless extension candidates. Maximal degree in co-relation 2384. Up to 225 conditions per place. [2024-11-20 14:04:18,416 INFO L140 encePairwiseOnDemand]: 1657/1663 looper letters, 51 selfloop transitions, 1 changer transitions 24/376 dead transitions. [2024-11-20 14:04:18,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 376 transitions, 1122 flow [2024-11-20 14:04:18,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:04:18,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:04:18,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3842 transitions. [2024-11-20 14:04:18,419 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7700942072559631 [2024-11-20 14:04:18,419 INFO L175 Difference]: Start difference. First operand has 471 places, 381 transitions, 1024 flow. Second operand 3 states and 3842 transitions. [2024-11-20 14:04:18,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 376 transitions, 1122 flow [2024-11-20 14:04:18,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 376 transitions, 1118 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:04:18,423 INFO L231 Difference]: Finished difference. Result has 465 places, 352 transitions, 962 flow [2024-11-20 14:04:18,423 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1663, PETRI_DIFFERENCE_MINUEND_FLOW=1010, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=962, PETRI_PLACES=465, PETRI_TRANSITIONS=352} [2024-11-20 14:04:18,423 INFO L277 CegarLoopForPetriNet]: 471 programPoint places, -6 predicate places. [2024-11-20 14:04:18,423 INFO L471 AbstractCegarLoop]: Abstraction has has 465 places, 352 transitions, 962 flow [2024-11-20 14:04:18,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1262.0) internal successors, (3786), 3 states have internal predecessors, (3786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:04:18,424 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:18,424 INFO L204 CegarLoopForPetriNet]: trace histogram [44, 44, 44, 44, 44, 44, 44, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:04:18,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2024-11-20 14:04:18,424 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-20 14:04:18,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:18,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1754731097, now seen corresponding path program 1 times [2024-11-20 14:04:18,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:18,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716003068] [2024-11-20 14:04:18,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:18,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:04:18,573 INFO L134 CoverageAnalysis]: Checked inductivity of 12986 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 12857 trivial. 0 not checked. [2024-11-20 14:04:18,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:04:18,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716003068] [2024-11-20 14:04:18,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716003068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:04:18,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:04:18,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:04:18,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41942842] [2024-11-20 14:04:18,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:04:18,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:04:18,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:04:18,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:04:18,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:04:18,677 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1390 out of 1663 [2024-11-20 14:04:18,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 352 transitions, 962 flow. Second operand has 5 states, 5 states have (on average 1400.6) internal successors, (7003), 5 states have internal predecessors, (7003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:04:18,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:04:18,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1390 of 1663 [2024-11-20 14:04:18,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:04:18,914 INFO L124 PetriNetUnfolderBase]: 0/918 cut-off events. [2024-11-20 14:04:18,915 INFO L125 PetriNetUnfolderBase]: For 1030/1030 co-relation queries the response was YES. [2024-11-20 14:04:18,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1234 conditions, 918 events. 0/918 cut-off events. For 1030/1030 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 543 event pairs, 0 based on Foata normal form. 1/918 useless extension candidates. Maximal degree in co-relation 0. Up to 137 conditions per place. [2024-11-20 14:04:18,916 INFO L140 encePairwiseOnDemand]: 1658/1663 looper letters, 51 selfloop transitions, 2 changer transitions 3/354 dead transitions. [2024-11-20 14:04:18,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 354 transitions, 1078 flow [2024-11-20 14:04:18,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:04:18,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:04:18,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7007 transitions. [2024-11-20 14:04:18,918 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.842693926638605 [2024-11-20 14:04:18,918 INFO L175 Difference]: Start difference. First operand has 465 places, 352 transitions, 962 flow. Second operand 5 states and 7007 transitions. [2024-11-20 14:04:18,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 354 transitions, 1078 flow [2024-11-20 14:04:18,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 354 transitions, 1077 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:04:18,922 INFO L231 Difference]: Finished difference. Result has 445 places, 351 transitions, 967 flow [2024-11-20 14:04:18,922 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1663, PETRI_DIFFERENCE_MINUEND_FLOW=961, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=967, PETRI_PLACES=445, PETRI_TRANSITIONS=351} [2024-11-20 14:04:18,922 INFO L277 CegarLoopForPetriNet]: 471 programPoint places, -26 predicate places. [2024-11-20 14:04:18,922 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 351 transitions, 967 flow [2024-11-20 14:04:18,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1400.6) internal successors, (7003), 5 states have internal predecessors, (7003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:04:18,923 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:18,923 INFO L204 CegarLoopForPetriNet]: trace histogram [44, 44, 44, 44, 44, 44, 44, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:04:18,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2024-11-20 14:04:18,923 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-20 14:04:18,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:18,923 INFO L85 PathProgramCache]: Analyzing trace with hash -638570197, now seen corresponding path program 1 times [2024-11-20 14:04:18,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:18,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689921024] [2024-11-20 14:04:18,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:18,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:04:18,997 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:04:19,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:04:19,205 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:04:19,206 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:04:19,206 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 51 remaining) [2024-11-20 14:04:19,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (49 of 51 remaining) [2024-11-20 14:04:19,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (48 of 51 remaining) [2024-11-20 14:04:19,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (47 of 51 remaining) [2024-11-20 14:04:19,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (46 of 51 remaining) [2024-11-20 14:04:19,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (45 of 51 remaining) [2024-11-20 14:04:19,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (44 of 51 remaining) [2024-11-20 14:04:19,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 51 remaining) [2024-11-20 14:04:19,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 51 remaining) [2024-11-20 14:04:19,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 51 remaining) [2024-11-20 14:04:19,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 51 remaining) [2024-11-20 14:04:19,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 51 remaining) [2024-11-20 14:04:19,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 51 remaining) [2024-11-20 14:04:19,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 51 remaining) [2024-11-20 14:04:19,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 51 remaining) [2024-11-20 14:04:19,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 51 remaining) [2024-11-20 14:04:19,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 51 remaining) [2024-11-20 14:04:19,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 51 remaining) [2024-11-20 14:04:19,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 51 remaining) [2024-11-20 14:04:19,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 51 remaining) [2024-11-20 14:04:19,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 51 remaining) [2024-11-20 14:04:19,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 51 remaining) [2024-11-20 14:04:19,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 51 remaining) [2024-11-20 14:04:19,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 51 remaining) [2024-11-20 14:04:19,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 51 remaining) [2024-11-20 14:04:19,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 51 remaining) [2024-11-20 14:04:19,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 51 remaining) [2024-11-20 14:04:19,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 51 remaining) [2024-11-20 14:04:19,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 51 remaining) [2024-11-20 14:04:19,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 51 remaining) [2024-11-20 14:04:19,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 51 remaining) [2024-11-20 14:04:19,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 51 remaining) [2024-11-20 14:04:19,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 51 remaining) [2024-11-20 14:04:19,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 51 remaining) [2024-11-20 14:04:19,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 51 remaining) [2024-11-20 14:04:19,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 51 remaining) [2024-11-20 14:04:19,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 51 remaining) [2024-11-20 14:04:19,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 51 remaining) [2024-11-20 14:04:19,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 51 remaining) [2024-11-20 14:04:19,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 51 remaining) [2024-11-20 14:04:19,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 51 remaining) [2024-11-20 14:04:19,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 51 remaining) [2024-11-20 14:04:19,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 51 remaining) [2024-11-20 14:04:19,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 51 remaining) [2024-11-20 14:04:19,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 51 remaining) [2024-11-20 14:04:19,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 51 remaining) [2024-11-20 14:04:19,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 51 remaining) [2024-11-20 14:04:19,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 51 remaining) [2024-11-20 14:04:19,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 51 remaining) [2024-11-20 14:04:19,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 51 remaining) [2024-11-20 14:04:19,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 51 remaining) [2024-11-20 14:04:19,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2024-11-20 14:04:19,209 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:04:19,209 WARN L244 ceAbstractionStarter]: 43 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:04:19,209 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 44 thread instances. [2024-11-20 14:04:19,352 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:04:19,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1699 places, 1700 transitions, 7536 flow [2024-11-20 14:04:20,007 INFO L124 PetriNetUnfolderBase]: 227/2911 cut-off events. [2024-11-20 14:04:20,007 INFO L125 PetriNetUnfolderBase]: For 15136/15136 co-relation queries the response was YES. [2024-11-20 14:04:20,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4124 conditions, 2911 events. 227/2911 cut-off events. For 15136/15136 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8335 event pairs, 0 based on Foata normal form. 0/2545 useless extension candidates. Maximal degree in co-relation 4035. Up to 90 conditions per place. [2024-11-20 14:04:20,059 INFO L82 GeneralOperation]: Start removeDead. Operand has 1699 places, 1700 transitions, 7536 flow [2024-11-20 14:04:20,065 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 480 places, 393 transitions, 2857 flow [2024-11-20 14:04:20,066 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:04:20,066 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;@7980b849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:04:20,066 INFO L334 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2024-11-20 14:04:20,067 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 14:04:20,067 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-20 14:04:20,067 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 14:04:20,067 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:20,067 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:04:20,067 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-11-20 14:04:20,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:20,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1480460547, now seen corresponding path program 1 times [2024-11-20 14:04:20,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:20,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000754012] [2024-11-20 14:04:20,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:20,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:20,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:04:20,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:04:20,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:04:20,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000754012] [2024-11-20 14:04:20,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000754012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:04:20,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:04:20,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:04:20,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199719463] [2024-11-20 14:04:20,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:04:20,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:04:20,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:04:20,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:04:20,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:04:20,253 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1379 out of 1700 [2024-11-20 14:04:20,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 393 transitions, 2857 flow. Second operand has 3 states, 3 states have (on average 1380.3333333333333) internal successors, (4141), 3 states have internal predecessors, (4141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:04:20,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:04:20,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1379 of 1700 [2024-11-20 14:04:20,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:04:20,985 INFO L124 PetriNetUnfolderBase]: 91/2234 cut-off events. [2024-11-20 14:04:20,985 INFO L125 PetriNetUnfolderBase]: For 16171/16171 co-relation queries the response was YES. [2024-11-20 14:04:21,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3727 conditions, 2234 events. 91/2234 cut-off events. For 16171/16171 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6325 event pairs, 45 based on Foata normal form. 91/2140 useless extension candidates. Maximal degree in co-relation 3577. Up to 321 conditions per place. [2024-11-20 14:04:21,004 INFO L140 encePairwiseOnDemand]: 1694/1700 looper letters, 54 selfloop transitions, 2 changer transitions 1/389 dead transitions. [2024-11-20 14:04:21,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 389 transitions, 2961 flow [2024-11-20 14:04:21,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:04:21,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:04:21,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4197 transitions. [2024-11-20 14:04:21,006 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8229411764705883 [2024-11-20 14:04:21,006 INFO L175 Difference]: Start difference. First operand has 480 places, 393 transitions, 2857 flow. Second operand 3 states and 4197 transitions. [2024-11-20 14:04:21,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 389 transitions, 2961 flow [2024-11-20 14:04:21,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 480 places, 389 transitions, 1154 flow, removed 903 selfloop flow, removed 1 redundant places. [2024-11-20 14:04:21,025 INFO L231 Difference]: Finished difference. Result has 480 places, 388 transitions, 1044 flow [2024-11-20 14:04:21,025 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1700, PETRI_DIFFERENCE_MINUEND_FLOW=1042, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=389, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1044, PETRI_PLACES=480, PETRI_TRANSITIONS=388} [2024-11-20 14:04:21,025 INFO L277 CegarLoopForPetriNet]: 480 programPoint places, 0 predicate places. [2024-11-20 14:04:21,025 INFO L471 AbstractCegarLoop]: Abstraction has has 480 places, 388 transitions, 1044 flow [2024-11-20 14:04:21,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1380.3333333333333) internal successors, (4141), 3 states have internal predecessors, (4141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:04:21,026 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:21,026 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] [2024-11-20 14:04:21,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2024-11-20 14:04:21,026 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-11-20 14:04:21,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:21,026 INFO L85 PathProgramCache]: Analyzing trace with hash -779479482, now seen corresponding path program 1 times [2024-11-20 14:04:21,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:21,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66089988] [2024-11-20 14:04:21,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:21,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:04:21,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 14:04:21,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:04:21,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66089988] [2024-11-20 14:04:21,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66089988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:04:21,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:04:21,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 14:04:21,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619823458] [2024-11-20 14:04:21,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:04:21,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 14:04:21,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:04:21,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 14:04:21,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 14:04:21,173 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1289 out of 1700 [2024-11-20 14:04:21,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 388 transitions, 1044 flow. Second operand has 3 states, 3 states have (on average 1290.0) internal successors, (3870), 3 states have internal predecessors, (3870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:04:21,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:04:21,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1289 of 1700 [2024-11-20 14:04:21,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:04:21,657 INFO L124 PetriNetUnfolderBase]: 46/2005 cut-off events. [2024-11-20 14:04:21,658 INFO L125 PetriNetUnfolderBase]: For 1077/1077 co-relation queries the response was YES. [2024-11-20 14:04:21,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2506 conditions, 2005 events. 46/2005 cut-off events. For 1077/1077 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4790 event pairs, 0 based on Foata normal form. 45/1959 useless extension candidates. Maximal degree in co-relation 2438. Up to 230 conditions per place. [2024-11-20 14:04:21,688 INFO L140 encePairwiseOnDemand]: 1694/1700 looper letters, 52 selfloop transitions, 1 changer transitions 24/383 dead transitions. [2024-11-20 14:04:21,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 383 transitions, 1144 flow [2024-11-20 14:04:21,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 14:04:21,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 14:04:21,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3927 transitions. [2024-11-20 14:04:21,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.77 [2024-11-20 14:04:21,690 INFO L175 Difference]: Start difference. First operand has 480 places, 388 transitions, 1044 flow. Second operand 3 states and 3927 transitions. [2024-11-20 14:04:21,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 383 transitions, 1144 flow [2024-11-20 14:04:21,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 383 transitions, 1140 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 14:04:21,694 INFO L231 Difference]: Finished difference. Result has 474 places, 359 transitions, 982 flow [2024-11-20 14:04:21,694 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1700, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=982, PETRI_PLACES=474, PETRI_TRANSITIONS=359} [2024-11-20 14:04:21,694 INFO L277 CegarLoopForPetriNet]: 480 programPoint places, -6 predicate places. [2024-11-20 14:04:21,694 INFO L471 AbstractCegarLoop]: Abstraction has has 474 places, 359 transitions, 982 flow [2024-11-20 14:04:21,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1290.0) internal successors, (3870), 3 states have internal predecessors, (3870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:04:21,694 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:21,695 INFO L204 CegarLoopForPetriNet]: trace histogram [45, 45, 45, 45, 45, 45, 45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:04:21,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2024-11-20 14:04:21,695 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-11-20 14:04:21,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:21,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1630211757, now seen corresponding path program 1 times [2024-11-20 14:04:21,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:21,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776263340] [2024-11-20 14:04:21,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:21,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 14:04:21,850 INFO L134 CoverageAnalysis]: Checked inductivity of 13596 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 13464 trivial. 0 not checked. [2024-11-20 14:04:21,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 14:04:21,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776263340] [2024-11-20 14:04:21,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776263340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 14:04:21,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 14:04:21,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 14:04:21,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064363288] [2024-11-20 14:04:21,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 14:04:21,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 14:04:21,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 14:04:21,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 14:04:21,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-20 14:04:21,990 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1421 out of 1700 [2024-11-20 14:04:21,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 359 transitions, 982 flow. Second operand has 5 states, 5 states have (on average 1431.8) internal successors, (7159), 5 states have internal predecessors, (7159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:04:21,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 14:04:21,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1421 of 1700 [2024-11-20 14:04:21,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 14:04:22,257 INFO L124 PetriNetUnfolderBase]: 0/938 cut-off events. [2024-11-20 14:04:22,257 INFO L125 PetriNetUnfolderBase]: For 1076/1076 co-relation queries the response was YES. [2024-11-20 14:04:22,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1261 conditions, 938 events. 0/938 cut-off events. For 1076/1076 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 556 event pairs, 0 based on Foata normal form. 1/938 useless extension candidates. Maximal degree in co-relation 0. Up to 140 conditions per place. [2024-11-20 14:04:22,258 INFO L140 encePairwiseOnDemand]: 1695/1700 looper letters, 52 selfloop transitions, 2 changer transitions 3/361 dead transitions. [2024-11-20 14:04:22,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 361 transitions, 1100 flow [2024-11-20 14:04:22,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 14:04:22,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 14:04:22,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7163 transitions. [2024-11-20 14:04:22,261 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8427058823529412 [2024-11-20 14:04:22,261 INFO L175 Difference]: Start difference. First operand has 474 places, 359 transitions, 982 flow. Second operand 5 states and 7163 transitions. [2024-11-20 14:04:22,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 361 transitions, 1100 flow [2024-11-20 14:04:22,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 361 transitions, 1099 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 14:04:22,265 INFO L231 Difference]: Finished difference. Result has 454 places, 358 transitions, 987 flow [2024-11-20 14:04:22,265 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1700, PETRI_DIFFERENCE_MINUEND_FLOW=981, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=987, PETRI_PLACES=454, PETRI_TRANSITIONS=358} [2024-11-20 14:04:22,265 INFO L277 CegarLoopForPetriNet]: 480 programPoint places, -26 predicate places. [2024-11-20 14:04:22,265 INFO L471 AbstractCegarLoop]: Abstraction has has 454 places, 358 transitions, 987 flow [2024-11-20 14:04:22,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1431.8) internal successors, (7159), 5 states have internal predecessors, (7159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 14:04:22,266 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 14:04:22,266 INFO L204 CegarLoopForPetriNet]: trace histogram [45, 45, 45, 45, 45, 45, 45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 14:04:22,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2024-11-20 14:04:22,266 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-11-20 14:04:22,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:04:22,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1542146099, now seen corresponding path program 1 times [2024-11-20 14:04:22,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:04:22,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725810082] [2024-11-20 14:04:22,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:04:22,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:04:22,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:04:22,345 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:04:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:04:22,677 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:04:22,678 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:04:22,678 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 52 remaining) [2024-11-20 14:04:22,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (50 of 52 remaining) [2024-11-20 14:04:22,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (49 of 52 remaining) [2024-11-20 14:04:22,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (48 of 52 remaining) [2024-11-20 14:04:22,678 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (47 of 52 remaining) [2024-11-20 14:04:22,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (46 of 52 remaining) [2024-11-20 14:04:22,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 52 remaining) [2024-11-20 14:04:22,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 52 remaining) [2024-11-20 14:04:22,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 52 remaining) [2024-11-20 14:04:22,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 52 remaining) [2024-11-20 14:04:22,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 52 remaining) [2024-11-20 14:04:22,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 52 remaining) [2024-11-20 14:04:22,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 52 remaining) [2024-11-20 14:04:22,679 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 52 remaining) [2024-11-20 14:04:22,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 52 remaining) [2024-11-20 14:04:22,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 52 remaining) [2024-11-20 14:04:22,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 52 remaining) [2024-11-20 14:04:22,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 52 remaining) [2024-11-20 14:04:22,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 52 remaining) [2024-11-20 14:04:22,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 52 remaining) [2024-11-20 14:04:22,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 52 remaining) [2024-11-20 14:04:22,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 52 remaining) [2024-11-20 14:04:22,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 52 remaining) [2024-11-20 14:04:22,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 52 remaining) [2024-11-20 14:04:22,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 52 remaining) [2024-11-20 14:04:22,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 52 remaining) [2024-11-20 14:04:22,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 52 remaining) [2024-11-20 14:04:22,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 52 remaining) [2024-11-20 14:04:22,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 52 remaining) [2024-11-20 14:04:22,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 52 remaining) [2024-11-20 14:04:22,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 52 remaining) [2024-11-20 14:04:22,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 52 remaining) [2024-11-20 14:04:22,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 52 remaining) [2024-11-20 14:04:22,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 52 remaining) [2024-11-20 14:04:22,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 52 remaining) [2024-11-20 14:04:22,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 52 remaining) [2024-11-20 14:04:22,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 52 remaining) [2024-11-20 14:04:22,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 52 remaining) [2024-11-20 14:04:22,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 52 remaining) [2024-11-20 14:04:22,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 52 remaining) [2024-11-20 14:04:22,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 52 remaining) [2024-11-20 14:04:22,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 52 remaining) [2024-11-20 14:04:22,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 52 remaining) [2024-11-20 14:04:22,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 52 remaining) [2024-11-20 14:04:22,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 52 remaining) [2024-11-20 14:04:22,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 52 remaining) [2024-11-20 14:04:22,682 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 52 remaining) [2024-11-20 14:04:22,683 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 52 remaining) [2024-11-20 14:04:22,683 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 52 remaining) [2024-11-20 14:04:22,683 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 52 remaining) [2024-11-20 14:04:22,683 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 52 remaining) [2024-11-20 14:04:22,683 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 52 remaining) [2024-11-20 14:04:22,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2024-11-20 14:04:22,683 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-20 14:04:22,684 WARN L244 ceAbstractionStarter]: 44 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 14:04:22,684 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 45 thread instances. [2024-11-20 14:04:22,831 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 14:04:22,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1736 places, 1737 transitions, 7794 flow