./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-theta/unwind3-nondet.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/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-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 06:07:30,422 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 06:07:30,486 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 06:07:30,490 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 06:07:30,491 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 06:07:30,515 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 06:07:30,516 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 06:07:30,516 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 06:07:30,517 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 06:07:30,517 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 06:07:30,517 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 06:07:30,517 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 06:07:30,518 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 06:07:30,518 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 06:07:30,518 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 06:07:30,519 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 06:07:30,519 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 06:07:30,519 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 06:07:30,519 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 06:07:30,519 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 06:07:30,520 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 06:07:30,520 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 06:07:30,520 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 06:07:30,521 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 06:07:30,521 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 06:07:30,521 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 06:07:30,521 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 06:07:30,521 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 06:07:30,522 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 06:07:30,522 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 06:07:30,522 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 06:07:30,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 06:07:30,522 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 06:07:30,523 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 06:07:30,523 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 06:07:30,523 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 06:07:30,523 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 06:07:30,523 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 06:07:30,523 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 06:07:30,523 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 06:07:30,523 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 06:07:30,524 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d10f4791070edb44c97ab9948c6a47d7a3edd4f9cb75d429f64896be7b2f789 [2024-11-19 06:07:30,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 06:07:30,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 06:07:30,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 06:07:30,744 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 06:07:30,745 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 06:07:30,746 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-theta/unwind3-nondet.i [2024-11-19 06:07:31,937 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 06:07:32,140 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 06:07:32,140 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind3-nondet.i [2024-11-19 06:07:32,155 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c93f37b78/7de08234e07649cd8b813c835edc8c44/FLAG885935ed5 [2024-11-19 06:07:32,167 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c93f37b78/7de08234e07649cd8b813c835edc8c44 [2024-11-19 06:07:32,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 06:07:32,170 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 06:07:32,171 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 06:07:32,171 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 06:07:32,175 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 06:07:32,176 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:07:32" (1/1) ... [2024-11-19 06:07:32,177 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30af80c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:07:32, skipping insertion in model container [2024-11-19 06:07:32,177 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:07:32" (1/1) ... [2024-11-19 06:07:32,224 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 06:07:32,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 06:07:32,539 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 06:07:32,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 06:07:32,605 INFO L204 MainTranslator]: Completed translation [2024-11-19 06:07:32,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:07:32 WrapperNode [2024-11-19 06:07:32,606 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 06:07:32,607 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 06:07:32,607 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 06:07:32,607 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 06:07:32,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:07:32" (1/1) ... [2024-11-19 06:07:32,629 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:07:32" (1/1) ... [2024-11-19 06:07:32,646 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 87 [2024-11-19 06:07:32,647 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 06:07:32,647 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 06:07:32,647 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 06:07:32,648 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 06:07:32,654 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:07:32" (1/1) ... [2024-11-19 06:07:32,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:07:32" (1/1) ... [2024-11-19 06:07:32,656 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:07:32" (1/1) ... [2024-11-19 06:07:32,657 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:07:32" (1/1) ... [2024-11-19 06:07:32,660 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:07:32" (1/1) ... [2024-11-19 06:07:32,663 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:07:32" (1/1) ... [2024-11-19 06:07:32,664 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:07:32" (1/1) ... [2024-11-19 06:07:32,665 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:07:32" (1/1) ... [2024-11-19 06:07:32,667 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 06:07:32,668 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 06:07:32,668 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 06:07:32,668 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 06:07:32,668 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:07:32" (1/1) ... [2024-11-19 06:07:32,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 06:07:32,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:07:32,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 06:07:32,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 06:07:32,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 06:07:32,749 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-19 06:07:32,749 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-19 06:07:32,749 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-19 06:07:32,749 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-19 06:07:32,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 06:07:32,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 06:07:32,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 06:07:32,751 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 06:07:32,875 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 06:07:32,876 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 06:07:32,990 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 06:07:32,990 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 06:07:33,001 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 06:07:33,001 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 06:07:33,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:07:33 BoogieIcfgContainer [2024-11-19 06:07:33,001 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 06:07:33,003 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 06:07:33,003 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 06:07:33,006 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 06:07:33,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:07:32" (1/3) ... [2024-11-19 06:07:33,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61bfcff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:07:33, skipping insertion in model container [2024-11-19 06:07:33,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:07:32" (2/3) ... [2024-11-19 06:07:33,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61bfcff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:07:33, skipping insertion in model container [2024-11-19 06:07:33,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:07:33" (3/3) ... [2024-11-19 06:07:33,008 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind3-nondet.i [2024-11-19 06:07:33,021 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 06:07:33,021 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-19 06:07:33,021 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 06:07:33,064 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:33,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 109 transitions, 226 flow [2024-11-19 06:07:33,135 INFO L124 PetriNetUnfolderBase]: 12/159 cut-off events. [2024-11-19 06:07:33,136 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:33,144 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. [2024-11-19 06:07:33,144 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 109 transitions, 226 flow [2024-11-19 06:07:33,150 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 92 transitions, 191 flow [2024-11-19 06:07:33,159 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:33,165 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:33,165 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-19 06:07:33,169 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:33,170 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:33,170 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:33,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:33,171 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:33,172 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)] === [2024-11-19 06:07:33,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:33,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1239212035, now seen corresponding path program 1 times [2024-11-19 06:07:33,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:33,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743070071] [2024-11-19 06:07:33,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:33,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:33,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:33,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:33,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743070071] [2024-11-19 06:07:33,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743070071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:33,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:33,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:33,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792202311] [2024-11-19 06:07:33,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:33,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:33,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:33,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:33,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:33,510 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 109 [2024-11-19 06:07:33,513 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) [2024-11-19 06:07:33,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:33,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 109 [2024-11-19 06:07:33,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:33,550 INFO L124 PetriNetUnfolderBase]: 5/127 cut-off events. [2024-11-19 06:07:33,553 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-19 06:07:33,554 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. [2024-11-19 06:07:33,556 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 11 selfloop transitions, 2 changer transitions 1/88 dead transitions. [2024-11-19 06:07:33,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 88 transitions, 209 flow [2024-11-19 06:07:33,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:33,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:33,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-11-19 06:07:33,568 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8685015290519877 [2024-11-19 06:07:33,570 INFO L175 Difference]: Start difference. First operand has 93 places, 92 transitions, 191 flow. Second operand 3 states and 284 transitions. [2024-11-19 06:07:33,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 88 transitions, 209 flow [2024-11-19 06:07:33,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 88 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:33,579 INFO L231 Difference]: Finished difference. Result has 93 places, 87 transitions, 184 flow [2024-11-19 06:07:33,582 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} [2024-11-19 06:07:33,585 INFO L277 CegarLoopForPetriNet]: 93 programPoint places, 0 predicate places. [2024-11-19 06:07:33,585 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 87 transitions, 184 flow [2024-11-19 06:07:33,587 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) [2024-11-19 06:07:33,587 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:33,587 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:33,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 06:07:33,587 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)] === [2024-11-19 06:07:33,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:33,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1360163590, now seen corresponding path program 1 times [2024-11-19 06:07:33,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:33,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471270733] [2024-11-19 06:07:33,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:33,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:33,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:33,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:33,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471270733] [2024-11-19 06:07:33,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471270733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:33,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:33,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:33,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917649009] [2024-11-19 06:07:33,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:33,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:33,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:33,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:33,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:33,677 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 109 [2024-11-19 06:07:33,678 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) [2024-11-19 06:07:33,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:33,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 109 [2024-11-19 06:07:33,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:33,705 INFO L124 PetriNetUnfolderBase]: 3/113 cut-off events. [2024-11-19 06:07:33,706 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 06:07:33,707 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. [2024-11-19 06:07:33,707 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 9 selfloop transitions, 1 changer transitions 24/82 dead transitions. [2024-11-19 06:07:33,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 82 transitions, 198 flow [2024-11-19 06:07:33,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:33,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:33,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 272 transitions. [2024-11-19 06:07:33,710 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8318042813455657 [2024-11-19 06:07:33,711 INFO L175 Difference]: Start difference. First operand has 93 places, 87 transitions, 184 flow. Second operand 3 states and 272 transitions. [2024-11-19 06:07:33,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 82 transitions, 198 flow [2024-11-19 06:07:33,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 82 transitions, 194 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:33,714 INFO L231 Difference]: Finished difference. Result has 87 places, 58 transitions, 122 flow [2024-11-19 06:07:33,715 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} [2024-11-19 06:07:33,715 INFO L277 CegarLoopForPetriNet]: 93 programPoint places, -6 predicate places. [2024-11-19 06:07:33,715 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 58 transitions, 122 flow [2024-11-19 06:07:33,716 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) [2024-11-19 06:07:33,716 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:33,716 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] [2024-11-19 06:07:33,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 06:07:33,716 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)] === [2024-11-19 06:07:33,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:33,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1669687107, now seen corresponding path program 1 times [2024-11-19 06:07:33,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:33,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232163096] [2024-11-19 06:07:33,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:33,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:33,917 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 06:07:33,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:33,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232163096] [2024-11-19 06:07:33,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232163096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:33,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:33,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:33,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066290396] [2024-11-19 06:07:33,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:33,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:33,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:33,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:33,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:33,973 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 109 [2024-11-19 06:07:33,973 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) [2024-11-19 06:07:33,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:33,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 109 [2024-11-19 06:07:33,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:33,998 INFO L124 PetriNetUnfolderBase]: 0/78 cut-off events. [2024-11-19 06:07:33,998 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 06:07:33,998 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. [2024-11-19 06:07:33,999 INFO L140 encePairwiseOnDemand]: 104/109 looper letters, 9 selfloop transitions, 2 changer transitions 3/60 dead transitions. [2024-11-19 06:07:33,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 60 transitions, 154 flow [2024-11-19 06:07:34,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:34,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:34,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 455 transitions. [2024-11-19 06:07:34,002 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8348623853211009 [2024-11-19 06:07:34,003 INFO L175 Difference]: Start difference. First operand has 87 places, 58 transitions, 122 flow. Second operand 5 states and 455 transitions. [2024-11-19 06:07:34,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 60 transitions, 154 flow [2024-11-19 06:07:34,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 60 transitions, 153 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:34,005 INFO L231 Difference]: Finished difference. Result has 67 places, 57 transitions, 127 flow [2024-11-19 06:07:34,005 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} [2024-11-19 06:07:34,005 INFO L277 CegarLoopForPetriNet]: 93 programPoint places, -26 predicate places. [2024-11-19 06:07:34,005 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 57 transitions, 127 flow [2024-11-19 06:07:34,006 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) [2024-11-19 06:07:34,006 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:34,006 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] [2024-11-19 06:07:34,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 06:07:34,006 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)] === [2024-11-19 06:07:34,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:34,007 INFO L85 PathProgramCache]: Analyzing trace with hash 16131628, now seen corresponding path program 1 times [2024-11-19 06:07:34,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:34,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808102120] [2024-11-19 06:07:34,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:34,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:34,026 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:34,054 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:34,054 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:34,055 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-19 06:07:34,056 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-19 06:07:34,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-19 06:07:34,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-19 06:07:34,057 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-19 06:07:34,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-19 06:07:34,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 9 remaining) [2024-11-19 06:07:34,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-19 06:07:34,059 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-19 06:07:34,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 06:07:34,060 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:34,062 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:34,063 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-19 06:07:34,092 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:34,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 146 transitions, 312 flow [2024-11-19 06:07:34,121 INFO L124 PetriNetUnfolderBase]: 17/223 cut-off events. [2024-11-19 06:07:34,122 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 06:07:34,122 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. [2024-11-19 06:07:34,122 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 146 transitions, 312 flow [2024-11-19 06:07:34,123 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 99 transitions, 211 flow [2024-11-19 06:07:34,124 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:34,124 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:34,124 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-19 06:07:34,126 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:34,126 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:34,126 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:34,126 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:34,126 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:34,126 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)] === [2024-11-19 06:07:34,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:34,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1623608829, now seen corresponding path program 1 times [2024-11-19 06:07:34,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:34,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171667260] [2024-11-19 06:07:34,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:34,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:34,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:34,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:34,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171667260] [2024-11-19 06:07:34,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171667260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:34,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:34,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:34,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48716140] [2024-11-19 06:07:34,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:34,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:34,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:34,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:34,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:34,208 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 146 [2024-11-19 06:07:34,209 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) [2024-11-19 06:07:34,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:34,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 146 [2024-11-19 06:07:34,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:34,230 INFO L124 PetriNetUnfolderBase]: 7/176 cut-off events. [2024-11-19 06:07:34,231 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-19 06:07:34,232 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. [2024-11-19 06:07:34,232 INFO L140 encePairwiseOnDemand]: 140/146 looper letters, 12 selfloop transitions, 2 changer transitions 1/95 dead transitions. [2024-11-19 06:07:34,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 95 transitions, 231 flow [2024-11-19 06:07:34,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:34,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:34,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 375 transitions. [2024-11-19 06:07:34,235 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8561643835616438 [2024-11-19 06:07:34,235 INFO L175 Difference]: Start difference. First operand has 102 places, 99 transitions, 211 flow. Second operand 3 states and 375 transitions. [2024-11-19 06:07:34,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 95 transitions, 231 flow [2024-11-19 06:07:34,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 95 transitions, 230 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:34,238 INFO L231 Difference]: Finished difference. Result has 102 places, 94 transitions, 204 flow [2024-11-19 06:07:34,238 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} [2024-11-19 06:07:34,239 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 0 predicate places. [2024-11-19 06:07:34,240 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 94 transitions, 204 flow [2024-11-19 06:07:34,240 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) [2024-11-19 06:07:34,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:34,241 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] [2024-11-19 06:07:34,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 06:07:34,241 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)] === [2024-11-19 06:07:34,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:34,242 INFO L85 PathProgramCache]: Analyzing trace with hash 670751110, now seen corresponding path program 1 times [2024-11-19 06:07:34,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:34,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687319010] [2024-11-19 06:07:34,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:34,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:34,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:34,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:34,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687319010] [2024-11-19 06:07:34,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687319010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:34,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:34,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:34,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566315951] [2024-11-19 06:07:34,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:34,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:34,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:34,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:34,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:34,288 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 146 [2024-11-19 06:07:34,289 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) [2024-11-19 06:07:34,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:34,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 146 [2024-11-19 06:07:34,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:34,310 INFO L124 PetriNetUnfolderBase]: 4/157 cut-off events. [2024-11-19 06:07:34,310 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 06:07:34,311 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. [2024-11-19 06:07:34,311 INFO L140 encePairwiseOnDemand]: 140/146 looper letters, 10 selfloop transitions, 1 changer transitions 24/89 dead transitions. [2024-11-19 06:07:34,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 89 transitions, 220 flow [2024-11-19 06:07:34,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:34,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:34,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 357 transitions. [2024-11-19 06:07:34,315 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.815068493150685 [2024-11-19 06:07:34,315 INFO L175 Difference]: Start difference. First operand has 102 places, 94 transitions, 204 flow. Second operand 3 states and 357 transitions. [2024-11-19 06:07:34,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 89 transitions, 220 flow [2024-11-19 06:07:34,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 89 transitions, 216 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:34,317 INFO L231 Difference]: Finished difference. Result has 96 places, 65 transitions, 142 flow [2024-11-19 06:07:34,317 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} [2024-11-19 06:07:34,318 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, -6 predicate places. [2024-11-19 06:07:34,318 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 65 transitions, 142 flow [2024-11-19 06:07:34,318 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) [2024-11-19 06:07:34,318 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:34,318 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] [2024-11-19 06:07:34,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 06:07:34,318 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)] === [2024-11-19 06:07:34,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:34,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1582488215, now seen corresponding path program 1 times [2024-11-19 06:07:34,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:34,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651024274] [2024-11-19 06:07:34,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:34,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:34,435 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 06:07:34,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:34,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651024274] [2024-11-19 06:07:34,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651024274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:34,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:34,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:34,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098686272] [2024-11-19 06:07:34,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:34,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:34,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:34,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:34,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:34,477 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 146 [2024-11-19 06:07:34,478 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) [2024-11-19 06:07:34,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:34,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 146 [2024-11-19 06:07:34,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:34,492 INFO L124 PetriNetUnfolderBase]: 0/98 cut-off events. [2024-11-19 06:07:34,493 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-19 06:07:34,494 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. [2024-11-19 06:07:34,494 INFO L140 encePairwiseOnDemand]: 141/146 looper letters, 10 selfloop transitions, 2 changer transitions 3/67 dead transitions. [2024-11-19 06:07:34,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 67 transitions, 176 flow [2024-11-19 06:07:34,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:34,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:34,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 611 transitions. [2024-11-19 06:07:34,496 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.836986301369863 [2024-11-19 06:07:34,496 INFO L175 Difference]: Start difference. First operand has 96 places, 65 transitions, 142 flow. Second operand 5 states and 611 transitions. [2024-11-19 06:07:34,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 67 transitions, 176 flow [2024-11-19 06:07:34,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 67 transitions, 175 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:34,499 INFO L231 Difference]: Finished difference. Result has 76 places, 64 transitions, 147 flow [2024-11-19 06:07:34,499 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} [2024-11-19 06:07:34,499 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, -26 predicate places. [2024-11-19 06:07:34,499 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 64 transitions, 147 flow [2024-11-19 06:07:34,500 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) [2024-11-19 06:07:34,500 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:34,500 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] [2024-11-19 06:07:34,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 06:07:34,500 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)] === [2024-11-19 06:07:34,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:34,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1496233298, now seen corresponding path program 1 times [2024-11-19 06:07:34,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:34,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363523560] [2024-11-19 06:07:34,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:34,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:34,518 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:34,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:34,535 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:34,535 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-19 06:07:34,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2024-11-19 06:07:34,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2024-11-19 06:07:34,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2024-11-19 06:07:34,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2024-11-19 06:07:34,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2024-11-19 06:07:34,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 10 remaining) [2024-11-19 06:07:34,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2024-11-19 06:07:34,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2024-11-19 06:07:34,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2024-11-19 06:07:34,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 06:07:34,536 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:34,537 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:34,537 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-19 06:07:34,565 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:34,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 183 transitions, 402 flow [2024-11-19 06:07:34,584 INFO L124 PetriNetUnfolderBase]: 22/287 cut-off events. [2024-11-19 06:07:34,585 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-19 06:07:34,586 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. [2024-11-19 06:07:34,586 INFO L82 GeneralOperation]: Start removeDead. Operand has 182 places, 183 transitions, 402 flow [2024-11-19 06:07:34,587 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 111 places, 106 transitions, 233 flow [2024-11-19 06:07:34,588 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:34,589 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:34,589 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-19 06:07:34,590 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:34,590 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:34,590 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:34,590 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:34,591 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:34,591 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)] === [2024-11-19 06:07:34,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:34,591 INFO L85 PathProgramCache]: Analyzing trace with hash -240367357, now seen corresponding path program 1 times [2024-11-19 06:07:34,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:34,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487961218] [2024-11-19 06:07:34,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:34,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:34,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:34,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:34,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487961218] [2024-11-19 06:07:34,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487961218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:34,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:34,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:34,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103253880] [2024-11-19 06:07:34,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:34,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:34,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:34,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:34,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:34,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 183 [2024-11-19 06:07:34,667 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) [2024-11-19 06:07:34,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:34,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 183 [2024-11-19 06:07:34,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:34,697 INFO L124 PetriNetUnfolderBase]: 9/225 cut-off events. [2024-11-19 06:07:34,698 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-19 06:07:34,699 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. [2024-11-19 06:07:34,699 INFO L140 encePairwiseOnDemand]: 177/183 looper letters, 13 selfloop transitions, 2 changer transitions 1/102 dead transitions. [2024-11-19 06:07:34,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 102 transitions, 255 flow [2024-11-19 06:07:34,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:34,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:34,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2024-11-19 06:07:34,701 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.848816029143898 [2024-11-19 06:07:34,701 INFO L175 Difference]: Start difference. First operand has 111 places, 106 transitions, 233 flow. Second operand 3 states and 466 transitions. [2024-11-19 06:07:34,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 102 transitions, 255 flow [2024-11-19 06:07:34,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 102 transitions, 252 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:34,705 INFO L231 Difference]: Finished difference. Result has 111 places, 101 transitions, 224 flow [2024-11-19 06:07:34,705 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} [2024-11-19 06:07:34,706 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, 0 predicate places. [2024-11-19 06:07:34,706 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 101 transitions, 224 flow [2024-11-19 06:07:34,706 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) [2024-11-19 06:07:34,707 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:34,707 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] [2024-11-19 06:07:34,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 06:07:34,707 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)] === [2024-11-19 06:07:34,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:34,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1100998214, now seen corresponding path program 1 times [2024-11-19 06:07:34,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:34,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501609969] [2024-11-19 06:07:34,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:34,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:34,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:34,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:34,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501609969] [2024-11-19 06:07:34,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501609969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:34,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:34,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:34,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067480099] [2024-11-19 06:07:34,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:34,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:34,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:34,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:34,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:34,764 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 183 [2024-11-19 06:07:34,765 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) [2024-11-19 06:07:34,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:34,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 183 [2024-11-19 06:07:34,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:34,791 INFO L124 PetriNetUnfolderBase]: 5/201 cut-off events. [2024-11-19 06:07:34,792 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-19 06:07:34,793 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. [2024-11-19 06:07:34,794 INFO L140 encePairwiseOnDemand]: 177/183 looper letters, 11 selfloop transitions, 1 changer transitions 24/96 dead transitions. [2024-11-19 06:07:34,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 96 transitions, 242 flow [2024-11-19 06:07:34,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:34,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:34,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 442 transitions. [2024-11-19 06:07:34,795 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8051001821493625 [2024-11-19 06:07:34,795 INFO L175 Difference]: Start difference. First operand has 111 places, 101 transitions, 224 flow. Second operand 3 states and 442 transitions. [2024-11-19 06:07:34,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 96 transitions, 242 flow [2024-11-19 06:07:34,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 96 transitions, 238 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:34,797 INFO L231 Difference]: Finished difference. Result has 105 places, 72 transitions, 162 flow [2024-11-19 06:07:34,797 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} [2024-11-19 06:07:34,798 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, -6 predicate places. [2024-11-19 06:07:34,798 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 72 transitions, 162 flow [2024-11-19 06:07:34,798 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) [2024-11-19 06:07:34,798 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:34,799 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] [2024-11-19 06:07:34,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 06:07:34,799 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)] === [2024-11-19 06:07:34,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:34,799 INFO L85 PathProgramCache]: Analyzing trace with hash 649750583, now seen corresponding path program 1 times [2024-11-19 06:07:34,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:34,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059343148] [2024-11-19 06:07:34,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:34,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:34,892 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-19 06:07:34,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:34,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059343148] [2024-11-19 06:07:34,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059343148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:34,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:34,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:34,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132996384] [2024-11-19 06:07:34,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:34,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:34,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:34,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:34,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:34,931 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 183 [2024-11-19 06:07:34,932 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) [2024-11-19 06:07:34,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:34,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 183 [2024-11-19 06:07:34,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:34,951 INFO L124 PetriNetUnfolderBase]: 0/118 cut-off events. [2024-11-19 06:07:34,951 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-19 06:07:34,952 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. [2024-11-19 06:07:34,952 INFO L140 encePairwiseOnDemand]: 178/183 looper letters, 11 selfloop transitions, 2 changer transitions 3/74 dead transitions. [2024-11-19 06:07:34,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 74 transitions, 198 flow [2024-11-19 06:07:34,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:34,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:34,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 767 transitions. [2024-11-19 06:07:34,955 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8382513661202186 [2024-11-19 06:07:34,955 INFO L175 Difference]: Start difference. First operand has 105 places, 72 transitions, 162 flow. Second operand 5 states and 767 transitions. [2024-11-19 06:07:34,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 74 transitions, 198 flow [2024-11-19 06:07:34,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 74 transitions, 197 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:34,957 INFO L231 Difference]: Finished difference. Result has 85 places, 71 transitions, 167 flow [2024-11-19 06:07:34,957 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} [2024-11-19 06:07:34,958 INFO L277 CegarLoopForPetriNet]: 111 programPoint places, -26 predicate places. [2024-11-19 06:07:34,958 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 71 transitions, 167 flow [2024-11-19 06:07:34,958 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) [2024-11-19 06:07:34,958 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:34,958 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] [2024-11-19 06:07:34,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 06:07:34,959 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)] === [2024-11-19 06:07:34,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:34,959 INFO L85 PathProgramCache]: Analyzing trace with hash -2084519721, now seen corresponding path program 1 times [2024-11-19 06:07:34,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:34,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547119469] [2024-11-19 06:07:34,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:34,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:34,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:34,975 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:34,993 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:34,994 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:34,994 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-19 06:07:34,994 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2024-11-19 06:07:34,994 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2024-11-19 06:07:34,994 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2024-11-19 06:07:34,994 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2024-11-19 06:07:34,994 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2024-11-19 06:07:34,995 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 11 remaining) [2024-11-19 06:07:34,995 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2024-11-19 06:07:34,995 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2024-11-19 06:07:34,995 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2024-11-19 06:07:34,996 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2024-11-19 06:07:34,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 06:07:34,996 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:34,996 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:34,996 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-19 06:07:35,029 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:35,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 219 places, 220 transitions, 496 flow [2024-11-19 06:07:35,054 INFO L124 PetriNetUnfolderBase]: 27/351 cut-off events. [2024-11-19 06:07:35,054 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-19 06:07:35,054 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. [2024-11-19 06:07:35,054 INFO L82 GeneralOperation]: Start removeDead. Operand has 219 places, 220 transitions, 496 flow [2024-11-19 06:07:35,056 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 113 transitions, 257 flow [2024-11-19 06:07:35,057 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:35,057 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:35,057 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-19 06:07:35,058 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:35,058 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:35,058 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:35,058 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:35,058 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:35,059 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)] === [2024-11-19 06:07:35,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:35,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1093969155, now seen corresponding path program 1 times [2024-11-19 06:07:35,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:35,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813480160] [2024-11-19 06:07:35,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:35,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:35,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:35,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:35,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813480160] [2024-11-19 06:07:35,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813480160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:35,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:35,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:35,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892485372] [2024-11-19 06:07:35,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:35,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:35,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:35,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:35,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:35,117 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 220 [2024-11-19 06:07:35,118 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) [2024-11-19 06:07:35,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:35,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 220 [2024-11-19 06:07:35,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:35,146 INFO L124 PetriNetUnfolderBase]: 11/274 cut-off events. [2024-11-19 06:07:35,146 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-19 06:07:35,146 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. [2024-11-19 06:07:35,147 INFO L140 encePairwiseOnDemand]: 214/220 looper letters, 14 selfloop transitions, 2 changer transitions 1/109 dead transitions. [2024-11-19 06:07:35,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 109 transitions, 281 flow [2024-11-19 06:07:35,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:35,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:35,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 557 transitions. [2024-11-19 06:07:35,148 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.843939393939394 [2024-11-19 06:07:35,149 INFO L175 Difference]: Start difference. First operand has 120 places, 113 transitions, 257 flow. Second operand 3 states and 557 transitions. [2024-11-19 06:07:35,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 109 transitions, 281 flow [2024-11-19 06:07:35,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 109 transitions, 274 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:35,151 INFO L231 Difference]: Finished difference. Result has 120 places, 108 transitions, 244 flow [2024-11-19 06:07:35,152 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} [2024-11-19 06:07:35,152 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 0 predicate places. [2024-11-19 06:07:35,152 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 108 transitions, 244 flow [2024-11-19 06:07:35,153 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) [2024-11-19 06:07:35,153 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:35,153 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] [2024-11-19 06:07:35,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 06:07:35,153 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)] === [2024-11-19 06:07:35,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:35,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1644062394, now seen corresponding path program 1 times [2024-11-19 06:07:35,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:35,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468555593] [2024-11-19 06:07:35,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:35,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:35,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:35,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:35,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468555593] [2024-11-19 06:07:35,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468555593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:35,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:35,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:35,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358569148] [2024-11-19 06:07:35,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:35,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:35,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:35,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:35,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:35,195 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 220 [2024-11-19 06:07:35,196 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) [2024-11-19 06:07:35,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:35,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 220 [2024-11-19 06:07:35,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:35,223 INFO L124 PetriNetUnfolderBase]: 6/245 cut-off events. [2024-11-19 06:07:35,223 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-19 06:07:35,224 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. [2024-11-19 06:07:35,225 INFO L140 encePairwiseOnDemand]: 214/220 looper letters, 12 selfloop transitions, 1 changer transitions 24/103 dead transitions. [2024-11-19 06:07:35,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 103 transitions, 264 flow [2024-11-19 06:07:35,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:35,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:35,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 527 transitions. [2024-11-19 06:07:35,226 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7984848484848485 [2024-11-19 06:07:35,226 INFO L175 Difference]: Start difference. First operand has 120 places, 108 transitions, 244 flow. Second operand 3 states and 527 transitions. [2024-11-19 06:07:35,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 103 transitions, 264 flow [2024-11-19 06:07:35,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 103 transitions, 260 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:35,228 INFO L231 Difference]: Finished difference. Result has 114 places, 79 transitions, 182 flow [2024-11-19 06:07:35,228 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} [2024-11-19 06:07:35,229 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, -6 predicate places. [2024-11-19 06:07:35,229 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 79 transitions, 182 flow [2024-11-19 06:07:35,230 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) [2024-11-19 06:07:35,230 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:35,230 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] [2024-11-19 06:07:35,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 06:07:35,230 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-19 06:07:35,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:35,231 INFO L85 PathProgramCache]: Analyzing trace with hash 344469891, now seen corresponding path program 1 times [2024-11-19 06:07:35,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:35,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392790333] [2024-11-19 06:07:35,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:35,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:35,333 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-19 06:07:35,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:35,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392790333] [2024-11-19 06:07:35,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392790333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:35,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:35,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:35,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416563592] [2024-11-19 06:07:35,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:35,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:35,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:35,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:35,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:35,373 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 220 [2024-11-19 06:07:35,374 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) [2024-11-19 06:07:35,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:35,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 220 [2024-11-19 06:07:35,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:35,393 INFO L124 PetriNetUnfolderBase]: 0/138 cut-off events. [2024-11-19 06:07:35,393 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-19 06:07:35,393 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. [2024-11-19 06:07:35,394 INFO L140 encePairwiseOnDemand]: 215/220 looper letters, 12 selfloop transitions, 2 changer transitions 3/81 dead transitions. [2024-11-19 06:07:35,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 81 transitions, 220 flow [2024-11-19 06:07:35,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:35,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:35,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 923 transitions. [2024-11-19 06:07:35,395 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8390909090909091 [2024-11-19 06:07:35,395 INFO L175 Difference]: Start difference. First operand has 114 places, 79 transitions, 182 flow. Second operand 5 states and 923 transitions. [2024-11-19 06:07:35,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 81 transitions, 220 flow [2024-11-19 06:07:35,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 81 transitions, 219 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:35,397 INFO L231 Difference]: Finished difference. Result has 94 places, 78 transitions, 187 flow [2024-11-19 06:07:35,397 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} [2024-11-19 06:07:35,398 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, -26 predicate places. [2024-11-19 06:07:35,398 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 78 transitions, 187 flow [2024-11-19 06:07:35,399 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) [2024-11-19 06:07:35,399 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:35,399 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] [2024-11-19 06:07:35,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 06:07:35,399 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)] === [2024-11-19 06:07:35,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:35,400 INFO L85 PathProgramCache]: Analyzing trace with hash -229009337, now seen corresponding path program 1 times [2024-11-19 06:07:35,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:35,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834156985] [2024-11-19 06:07:35,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:35,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:35,410 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:35,422 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:35,422 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:35,423 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-19 06:07:35,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-19 06:07:35,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-19 06:07:35,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-19 06:07:35,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-19 06:07:35,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-19 06:07:35,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2024-11-19 06:07:35,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-19 06:07:35,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-19 06:07:35,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-19 06:07:35,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-19 06:07:35,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-19 06:07:35,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 06:07:35,424 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:35,424 WARN L244 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:35,425 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-19 06:07:35,451 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:35,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 256 places, 257 transitions, 594 flow [2024-11-19 06:07:35,476 INFO L124 PetriNetUnfolderBase]: 32/415 cut-off events. [2024-11-19 06:07:35,477 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-19 06:07:35,478 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. [2024-11-19 06:07:35,478 INFO L82 GeneralOperation]: Start removeDead. Operand has 256 places, 257 transitions, 594 flow [2024-11-19 06:07:35,479 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 120 transitions, 283 flow [2024-11-19 06:07:35,479 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:35,480 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:35,480 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-19 06:07:35,481 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:35,481 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:35,481 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:35,481 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:35,481 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:35,500 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)] === [2024-11-19 06:07:35,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:35,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1915566589, now seen corresponding path program 1 times [2024-11-19 06:07:35,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:35,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048219941] [2024-11-19 06:07:35,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:35,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:35,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:35,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:35,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048219941] [2024-11-19 06:07:35,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048219941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:35,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:35,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:35,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370619514] [2024-11-19 06:07:35,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:35,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:35,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:35,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:35,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:35,568 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 257 [2024-11-19 06:07:35,569 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) [2024-11-19 06:07:35,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:35,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 257 [2024-11-19 06:07:35,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:35,597 INFO L124 PetriNetUnfolderBase]: 13/323 cut-off events. [2024-11-19 06:07:35,597 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-19 06:07:35,597 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. [2024-11-19 06:07:35,598 INFO L140 encePairwiseOnDemand]: 251/257 looper letters, 15 selfloop transitions, 2 changer transitions 1/116 dead transitions. [2024-11-19 06:07:35,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 116 transitions, 309 flow [2024-11-19 06:07:35,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:35,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:35,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 648 transitions. [2024-11-19 06:07:35,599 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8404669260700389 [2024-11-19 06:07:35,599 INFO L175 Difference]: Start difference. First operand has 129 places, 120 transitions, 283 flow. Second operand 3 states and 648 transitions. [2024-11-19 06:07:35,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 116 transitions, 309 flow [2024-11-19 06:07:35,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 116 transitions, 296 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:35,602 INFO L231 Difference]: Finished difference. Result has 129 places, 115 transitions, 264 flow [2024-11-19 06:07:35,602 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} [2024-11-19 06:07:35,603 INFO L277 CegarLoopForPetriNet]: 129 programPoint places, 0 predicate places. [2024-11-19 06:07:35,603 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 115 transitions, 264 flow [2024-11-19 06:07:35,603 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) [2024-11-19 06:07:35,603 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:35,603 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] [2024-11-19 06:07:35,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 06:07:35,604 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)] === [2024-11-19 06:07:35,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:35,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1025503878, now seen corresponding path program 1 times [2024-11-19 06:07:35,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:35,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950585197] [2024-11-19 06:07:35,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:35,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:35,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:35,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:35,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950585197] [2024-11-19 06:07:35,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950585197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:35,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:35,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:35,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884157946] [2024-11-19 06:07:35,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:35,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:35,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:35,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:35,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:35,647 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 257 [2024-11-19 06:07:35,648 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) [2024-11-19 06:07:35,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:35,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 257 [2024-11-19 06:07:35,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:35,676 INFO L124 PetriNetUnfolderBase]: 7/289 cut-off events. [2024-11-19 06:07:35,676 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-19 06:07:35,677 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. [2024-11-19 06:07:35,677 INFO L140 encePairwiseOnDemand]: 251/257 looper letters, 13 selfloop transitions, 1 changer transitions 24/110 dead transitions. [2024-11-19 06:07:35,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 110 transitions, 286 flow [2024-11-19 06:07:35,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:35,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:35,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 612 transitions. [2024-11-19 06:07:35,679 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7937743190661478 [2024-11-19 06:07:35,679 INFO L175 Difference]: Start difference. First operand has 129 places, 115 transitions, 264 flow. Second operand 3 states and 612 transitions. [2024-11-19 06:07:35,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 110 transitions, 286 flow [2024-11-19 06:07:35,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 110 transitions, 282 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:35,681 INFO L231 Difference]: Finished difference. Result has 123 places, 86 transitions, 202 flow [2024-11-19 06:07:35,681 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} [2024-11-19 06:07:35,681 INFO L277 CegarLoopForPetriNet]: 129 programPoint places, -6 predicate places. [2024-11-19 06:07:35,681 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 86 transitions, 202 flow [2024-11-19 06:07:35,682 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) [2024-11-19 06:07:35,682 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:35,682 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] [2024-11-19 06:07:35,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 06:07:35,682 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)] === [2024-11-19 06:07:35,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:35,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1179719643, now seen corresponding path program 1 times [2024-11-19 06:07:35,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:35,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530712444] [2024-11-19 06:07:35,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:35,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:35,770 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-19 06:07:35,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:35,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530712444] [2024-11-19 06:07:35,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530712444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:35,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:35,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:35,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255847155] [2024-11-19 06:07:35,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:35,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:35,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:35,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:35,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:35,809 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 257 [2024-11-19 06:07:35,810 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) [2024-11-19 06:07:35,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:35,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 257 [2024-11-19 06:07:35,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:35,832 INFO L124 PetriNetUnfolderBase]: 0/158 cut-off events. [2024-11-19 06:07:35,832 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-11-19 06:07:35,832 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. [2024-11-19 06:07:35,833 INFO L140 encePairwiseOnDemand]: 252/257 looper letters, 13 selfloop transitions, 2 changer transitions 3/88 dead transitions. [2024-11-19 06:07:35,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 88 transitions, 242 flow [2024-11-19 06:07:35,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:35,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:35,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1079 transitions. [2024-11-19 06:07:35,835 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8396887159533074 [2024-11-19 06:07:35,835 INFO L175 Difference]: Start difference. First operand has 123 places, 86 transitions, 202 flow. Second operand 5 states and 1079 transitions. [2024-11-19 06:07:35,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 88 transitions, 242 flow [2024-11-19 06:07:35,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 88 transitions, 241 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:35,836 INFO L231 Difference]: Finished difference. Result has 103 places, 85 transitions, 207 flow [2024-11-19 06:07:35,837 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} [2024-11-19 06:07:35,837 INFO L277 CegarLoopForPetriNet]: 129 programPoint places, -26 predicate places. [2024-11-19 06:07:35,837 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 85 transitions, 207 flow [2024-11-19 06:07:35,838 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) [2024-11-19 06:07:35,838 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:35,838 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] [2024-11-19 06:07:35,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 06:07:35,838 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)] === [2024-11-19 06:07:35,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:35,838 INFO L85 PathProgramCache]: Analyzing trace with hash 105758878, now seen corresponding path program 1 times [2024-11-19 06:07:35,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:35,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979516846] [2024-11-19 06:07:35,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:35,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:35,850 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:35,863 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:35,863 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:35,864 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-19 06:07:35,864 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2024-11-19 06:07:35,864 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2024-11-19 06:07:35,864 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2024-11-19 06:07:35,864 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2024-11-19 06:07:35,864 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2024-11-19 06:07:35,864 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2024-11-19 06:07:35,864 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2024-11-19 06:07:35,864 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2024-11-19 06:07:35,864 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2024-11-19 06:07:35,864 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2024-11-19 06:07:35,864 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2024-11-19 06:07:35,864 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2024-11-19 06:07:35,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 06:07:35,864 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:35,865 WARN L244 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:35,865 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2024-11-19 06:07:35,918 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:35,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 293 places, 294 transitions, 696 flow [2024-11-19 06:07:35,949 INFO L124 PetriNetUnfolderBase]: 37/479 cut-off events. [2024-11-19 06:07:35,949 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-19 06:07:35,950 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. [2024-11-19 06:07:35,950 INFO L82 GeneralOperation]: Start removeDead. Operand has 293 places, 294 transitions, 696 flow [2024-11-19 06:07:35,951 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 127 transitions, 311 flow [2024-11-19 06:07:35,952 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:35,952 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:35,952 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-19 06:07:35,954 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:35,954 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:35,954 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:35,954 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:35,954 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:35,954 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)] === [2024-11-19 06:07:35,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:35,954 INFO L85 PathProgramCache]: Analyzing trace with hash -679039997, now seen corresponding path program 1 times [2024-11-19 06:07:35,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:35,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762445134] [2024-11-19 06:07:35,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:35,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:35,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:35,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:35,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762445134] [2024-11-19 06:07:35,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762445134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:35,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:35,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:35,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039628359] [2024-11-19 06:07:35,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:35,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:35,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:35,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:35,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:36,005 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 294 [2024-11-19 06:07:36,007 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) [2024-11-19 06:07:36,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:36,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 294 [2024-11-19 06:07:36,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:36,042 INFO L124 PetriNetUnfolderBase]: 15/372 cut-off events. [2024-11-19 06:07:36,043 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2024-11-19 06:07:36,044 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. [2024-11-19 06:07:36,044 INFO L140 encePairwiseOnDemand]: 288/294 looper letters, 16 selfloop transitions, 2 changer transitions 1/123 dead transitions. [2024-11-19 06:07:36,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 123 transitions, 339 flow [2024-11-19 06:07:36,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:36,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:36,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 739 transitions. [2024-11-19 06:07:36,046 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8378684807256236 [2024-11-19 06:07:36,046 INFO L175 Difference]: Start difference. First operand has 138 places, 127 transitions, 311 flow. Second operand 3 states and 739 transitions. [2024-11-19 06:07:36,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 123 transitions, 339 flow [2024-11-19 06:07:36,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 123 transitions, 318 flow, removed 10 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:36,048 INFO L231 Difference]: Finished difference. Result has 138 places, 122 transitions, 284 flow [2024-11-19 06:07:36,048 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} [2024-11-19 06:07:36,049 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, 0 predicate places. [2024-11-19 06:07:36,049 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 122 transitions, 284 flow [2024-11-19 06:07:36,050 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) [2024-11-19 06:07:36,050 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:36,050 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] [2024-11-19 06:07:36,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 06:07:36,050 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)] === [2024-11-19 06:07:36,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:36,051 INFO L85 PathProgramCache]: Analyzing trace with hash 519762438, now seen corresponding path program 1 times [2024-11-19 06:07:36,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:36,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100448633] [2024-11-19 06:07:36,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:36,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:36,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:36,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:36,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100448633] [2024-11-19 06:07:36,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100448633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:36,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:36,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:36,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519515114] [2024-11-19 06:07:36,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:36,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:36,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:36,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:36,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:36,088 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 294 [2024-11-19 06:07:36,089 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) [2024-11-19 06:07:36,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:36,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 294 [2024-11-19 06:07:36,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:36,126 INFO L124 PetriNetUnfolderBase]: 8/333 cut-off events. [2024-11-19 06:07:36,126 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-19 06:07:36,127 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. [2024-11-19 06:07:36,128 INFO L140 encePairwiseOnDemand]: 288/294 looper letters, 14 selfloop transitions, 1 changer transitions 24/117 dead transitions. [2024-11-19 06:07:36,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 117 transitions, 308 flow [2024-11-19 06:07:36,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:36,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:36,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 697 transitions. [2024-11-19 06:07:36,129 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7902494331065759 [2024-11-19 06:07:36,129 INFO L175 Difference]: Start difference. First operand has 138 places, 122 transitions, 284 flow. Second operand 3 states and 697 transitions. [2024-11-19 06:07:36,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 117 transitions, 308 flow [2024-11-19 06:07:36,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 117 transitions, 304 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:36,131 INFO L231 Difference]: Finished difference. Result has 132 places, 93 transitions, 222 flow [2024-11-19 06:07:36,131 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} [2024-11-19 06:07:36,132 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, -6 predicate places. [2024-11-19 06:07:36,132 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 93 transitions, 222 flow [2024-11-19 06:07:36,133 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) [2024-11-19 06:07:36,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:36,133 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] [2024-11-19 06:07:36,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 06:07:36,133 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)] === [2024-11-19 06:07:36,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:36,134 INFO L85 PathProgramCache]: Analyzing trace with hash -474563425, now seen corresponding path program 1 times [2024-11-19 06:07:36,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:36,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967914727] [2024-11-19 06:07:36,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:36,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:36,209 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-19 06:07:36,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:36,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967914727] [2024-11-19 06:07:36,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967914727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:36,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:36,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:36,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740817541] [2024-11-19 06:07:36,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:36,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:36,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:36,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:36,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:36,274 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 294 [2024-11-19 06:07:36,275 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) [2024-11-19 06:07:36,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:36,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 294 [2024-11-19 06:07:36,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:36,302 INFO L124 PetriNetUnfolderBase]: 0/178 cut-off events. [2024-11-19 06:07:36,303 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-19 06:07:36,303 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. [2024-11-19 06:07:36,303 INFO L140 encePairwiseOnDemand]: 289/294 looper letters, 14 selfloop transitions, 2 changer transitions 3/95 dead transitions. [2024-11-19 06:07:36,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 95 transitions, 264 flow [2024-11-19 06:07:36,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:36,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:36,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1235 transitions. [2024-11-19 06:07:36,306 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8401360544217688 [2024-11-19 06:07:36,306 INFO L175 Difference]: Start difference. First operand has 132 places, 93 transitions, 222 flow. Second operand 5 states and 1235 transitions. [2024-11-19 06:07:36,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 95 transitions, 264 flow [2024-11-19 06:07:36,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 95 transitions, 263 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:36,308 INFO L231 Difference]: Finished difference. Result has 112 places, 92 transitions, 227 flow [2024-11-19 06:07:36,308 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} [2024-11-19 06:07:36,308 INFO L277 CegarLoopForPetriNet]: 138 programPoint places, -26 predicate places. [2024-11-19 06:07:36,308 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 92 transitions, 227 flow [2024-11-19 06:07:36,309 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) [2024-11-19 06:07:36,309 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:36,310 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] [2024-11-19 06:07:36,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 06:07:36,310 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)] === [2024-11-19 06:07:36,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:36,310 INFO L85 PathProgramCache]: Analyzing trace with hash -752350852, now seen corresponding path program 1 times [2024-11-19 06:07:36,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:36,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087916767] [2024-11-19 06:07:36,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:36,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:36,328 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:36,358 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:36,358 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:36,358 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2024-11-19 06:07:36,358 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2024-11-19 06:07:36,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2024-11-19 06:07:36,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2024-11-19 06:07:36,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2024-11-19 06:07:36,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2024-11-19 06:07:36,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 14 remaining) [2024-11-19 06:07:36,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2024-11-19 06:07:36,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2024-11-19 06:07:36,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2024-11-19 06:07:36,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2024-11-19 06:07:36,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2024-11-19 06:07:36,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2024-11-19 06:07:36,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2024-11-19 06:07:36,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 06:07:36,360 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:36,360 WARN L244 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:36,360 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2024-11-19 06:07:36,404 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:36,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 330 places, 331 transitions, 802 flow [2024-11-19 06:07:36,442 INFO L124 PetriNetUnfolderBase]: 42/543 cut-off events. [2024-11-19 06:07:36,442 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-11-19 06:07:36,444 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. [2024-11-19 06:07:36,444 INFO L82 GeneralOperation]: Start removeDead. Operand has 330 places, 331 transitions, 802 flow [2024-11-19 06:07:36,447 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 134 transitions, 341 flow [2024-11-19 06:07:36,448 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:36,448 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:36,449 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-19 06:07:36,450 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:36,450 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:36,451 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:36,451 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:36,451 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:36,451 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)] === [2024-11-19 06:07:36,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:36,451 INFO L85 PathProgramCache]: Analyzing trace with hash 508581635, now seen corresponding path program 1 times [2024-11-19 06:07:36,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:36,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126639480] [2024-11-19 06:07:36,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:36,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:36,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:36,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:36,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126639480] [2024-11-19 06:07:36,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126639480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:36,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:36,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:36,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270758343] [2024-11-19 06:07:36,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:36,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:36,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:36,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:36,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:36,506 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 331 [2024-11-19 06:07:36,507 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) [2024-11-19 06:07:36,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:36,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 331 [2024-11-19 06:07:36,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:36,548 INFO L124 PetriNetUnfolderBase]: 17/421 cut-off events. [2024-11-19 06:07:36,548 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-11-19 06:07:36,549 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. [2024-11-19 06:07:36,551 INFO L140 encePairwiseOnDemand]: 325/331 looper letters, 17 selfloop transitions, 2 changer transitions 1/130 dead transitions. [2024-11-19 06:07:36,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 130 transitions, 371 flow [2024-11-19 06:07:36,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:36,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:36,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 830 transitions. [2024-11-19 06:07:36,552 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8358509566968781 [2024-11-19 06:07:36,553 INFO L175 Difference]: Start difference. First operand has 147 places, 134 transitions, 341 flow. Second operand 3 states and 830 transitions. [2024-11-19 06:07:36,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 130 transitions, 371 flow [2024-11-19 06:07:36,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 130 transitions, 340 flow, removed 15 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:36,555 INFO L231 Difference]: Finished difference. Result has 147 places, 129 transitions, 304 flow [2024-11-19 06:07:36,555 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} [2024-11-19 06:07:36,555 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 0 predicate places. [2024-11-19 06:07:36,555 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 129 transitions, 304 flow [2024-11-19 06:07:36,556 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) [2024-11-19 06:07:36,556 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:36,556 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] [2024-11-19 06:07:36,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 06:07:36,556 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)] === [2024-11-19 06:07:36,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:36,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1133680582, now seen corresponding path program 1 times [2024-11-19 06:07:36,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:36,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621608423] [2024-11-19 06:07:36,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:36,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:36,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:36,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:36,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621608423] [2024-11-19 06:07:36,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621608423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:36,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:36,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:36,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076155445] [2024-11-19 06:07:36,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:36,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:36,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:36,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:36,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:36,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 331 [2024-11-19 06:07:36,602 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) [2024-11-19 06:07:36,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:36,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 331 [2024-11-19 06:07:36,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:36,646 INFO L124 PetriNetUnfolderBase]: 9/377 cut-off events. [2024-11-19 06:07:36,647 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-19 06:07:36,648 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. [2024-11-19 06:07:36,648 INFO L140 encePairwiseOnDemand]: 325/331 looper letters, 15 selfloop transitions, 1 changer transitions 24/124 dead transitions. [2024-11-19 06:07:36,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 124 transitions, 330 flow [2024-11-19 06:07:36,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:36,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:36,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 782 transitions. [2024-11-19 06:07:36,650 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7875125881168177 [2024-11-19 06:07:36,650 INFO L175 Difference]: Start difference. First operand has 147 places, 129 transitions, 304 flow. Second operand 3 states and 782 transitions. [2024-11-19 06:07:36,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 124 transitions, 330 flow [2024-11-19 06:07:36,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 124 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:36,652 INFO L231 Difference]: Finished difference. Result has 141 places, 100 transitions, 242 flow [2024-11-19 06:07:36,652 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} [2024-11-19 06:07:36,653 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, -6 predicate places. [2024-11-19 06:07:36,653 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 100 transitions, 242 flow [2024-11-19 06:07:36,653 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) [2024-11-19 06:07:36,653 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:36,654 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] [2024-11-19 06:07:36,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-19 06:07:36,654 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)] === [2024-11-19 06:07:36,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:36,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1607761617, now seen corresponding path program 1 times [2024-11-19 06:07:36,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:36,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325919359] [2024-11-19 06:07:36,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:36,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:36,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:36,752 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2024-11-19 06:07:36,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:36,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325919359] [2024-11-19 06:07:36,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325919359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:36,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:36,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:36,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047844592] [2024-11-19 06:07:36,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:36,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:36,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:36,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:36,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:36,802 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 331 [2024-11-19 06:07:36,804 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) [2024-11-19 06:07:36,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:36,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 331 [2024-11-19 06:07:36,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:36,833 INFO L124 PetriNetUnfolderBase]: 0/198 cut-off events. [2024-11-19 06:07:36,833 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-19 06:07:36,833 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. [2024-11-19 06:07:36,833 INFO L140 encePairwiseOnDemand]: 326/331 looper letters, 15 selfloop transitions, 2 changer transitions 3/102 dead transitions. [2024-11-19 06:07:36,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 102 transitions, 286 flow [2024-11-19 06:07:36,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:36,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:36,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1391 transitions. [2024-11-19 06:07:36,836 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8404833836858006 [2024-11-19 06:07:36,836 INFO L175 Difference]: Start difference. First operand has 141 places, 100 transitions, 242 flow. Second operand 5 states and 1391 transitions. [2024-11-19 06:07:36,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 102 transitions, 286 flow [2024-11-19 06:07:36,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 102 transitions, 285 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:36,839 INFO L231 Difference]: Finished difference. Result has 121 places, 99 transitions, 247 flow [2024-11-19 06:07:36,839 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} [2024-11-19 06:07:36,839 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, -26 predicate places. [2024-11-19 06:07:36,839 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 99 transitions, 247 flow [2024-11-19 06:07:36,840 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) [2024-11-19 06:07:36,840 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:36,840 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] [2024-11-19 06:07:36,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-19 06:07:36,840 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)] === [2024-11-19 06:07:36,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:36,840 INFO L85 PathProgramCache]: Analyzing trace with hash -393731455, now seen corresponding path program 1 times [2024-11-19 06:07:36,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:36,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960243377] [2024-11-19 06:07:36,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:36,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:36,854 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:36,873 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:36,873 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:36,873 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-19 06:07:36,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-19 06:07:36,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-19 06:07:36,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-19 06:07:36,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-19 06:07:36,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-19 06:07:36,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2024-11-19 06:07:36,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-19 06:07:36,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-19 06:07:36,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-19 06:07:36,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-19 06:07:36,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-19 06:07:36,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-19 06:07:36,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-19 06:07:36,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-19 06:07:36,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-19 06:07:36,875 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:36,875 WARN L244 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:36,875 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2024-11-19 06:07:36,914 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:36,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 367 places, 368 transitions, 912 flow [2024-11-19 06:07:36,954 INFO L124 PetriNetUnfolderBase]: 47/607 cut-off events. [2024-11-19 06:07:36,954 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-19 06:07:36,956 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. [2024-11-19 06:07:36,956 INFO L82 GeneralOperation]: Start removeDead. Operand has 367 places, 368 transitions, 912 flow [2024-11-19 06:07:36,958 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 141 transitions, 373 flow [2024-11-19 06:07:36,959 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:36,959 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:36,959 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-19 06:07:36,960 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:36,960 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:36,960 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:36,960 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:36,960 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:36,960 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)] === [2024-11-19 06:07:36,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:36,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1647298307, now seen corresponding path program 1 times [2024-11-19 06:07:36,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:36,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390546305] [2024-11-19 06:07:36,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:36,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:36,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:36,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:36,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390546305] [2024-11-19 06:07:36,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390546305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:36,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:36,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:36,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145627783] [2024-11-19 06:07:36,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:36,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:36,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:36,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:36,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:37,022 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 368 [2024-11-19 06:07:37,023 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) [2024-11-19 06:07:37,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:37,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 368 [2024-11-19 06:07:37,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:37,083 INFO L124 PetriNetUnfolderBase]: 19/470 cut-off events. [2024-11-19 06:07:37,084 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2024-11-19 06:07:37,084 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. [2024-11-19 06:07:37,086 INFO L140 encePairwiseOnDemand]: 362/368 looper letters, 18 selfloop transitions, 2 changer transitions 1/137 dead transitions. [2024-11-19 06:07:37,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 137 transitions, 405 flow [2024-11-19 06:07:37,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:37,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:37,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2024-11-19 06:07:37,087 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8342391304347826 [2024-11-19 06:07:37,088 INFO L175 Difference]: Start difference. First operand has 156 places, 141 transitions, 373 flow. Second operand 3 states and 921 transitions. [2024-11-19 06:07:37,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 137 transitions, 405 flow [2024-11-19 06:07:37,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 137 transitions, 362 flow, removed 21 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:37,089 INFO L231 Difference]: Finished difference. Result has 156 places, 136 transitions, 324 flow [2024-11-19 06:07:37,090 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} [2024-11-19 06:07:37,090 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, 0 predicate places. [2024-11-19 06:07:37,090 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 136 transitions, 324 flow [2024-11-19 06:07:37,090 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) [2024-11-19 06:07:37,090 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:37,090 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] [2024-11-19 06:07:37,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-19 06:07:37,091 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)] === [2024-11-19 06:07:37,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:37,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1427708986, now seen corresponding path program 1 times [2024-11-19 06:07:37,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:37,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306281203] [2024-11-19 06:07:37,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:37,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:37,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:37,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:37,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306281203] [2024-11-19 06:07:37,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306281203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:37,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:37,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:37,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142487492] [2024-11-19 06:07:37,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:37,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:37,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:37,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:37,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:37,135 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 368 [2024-11-19 06:07:37,136 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) [2024-11-19 06:07:37,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:37,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 368 [2024-11-19 06:07:37,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:37,176 INFO L124 PetriNetUnfolderBase]: 10/421 cut-off events. [2024-11-19 06:07:37,176 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-19 06:07:37,178 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. [2024-11-19 06:07:37,178 INFO L140 encePairwiseOnDemand]: 362/368 looper letters, 16 selfloop transitions, 1 changer transitions 24/131 dead transitions. [2024-11-19 06:07:37,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 131 transitions, 352 flow [2024-11-19 06:07:37,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:37,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:37,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 867 transitions. [2024-11-19 06:07:37,180 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7853260869565217 [2024-11-19 06:07:37,180 INFO L175 Difference]: Start difference. First operand has 156 places, 136 transitions, 324 flow. Second operand 3 states and 867 transitions. [2024-11-19 06:07:37,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 131 transitions, 352 flow [2024-11-19 06:07:37,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 131 transitions, 348 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:37,182 INFO L231 Difference]: Finished difference. Result has 150 places, 107 transitions, 262 flow [2024-11-19 06:07:37,182 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} [2024-11-19 06:07:37,183 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, -6 predicate places. [2024-11-19 06:07:37,183 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 107 transitions, 262 flow [2024-11-19 06:07:37,183 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) [2024-11-19 06:07:37,183 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:37,183 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] [2024-11-19 06:07:37,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-19 06:07:37,183 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)] === [2024-11-19 06:07:37,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:37,184 INFO L85 PathProgramCache]: Analyzing trace with hash 506889963, now seen corresponding path program 1 times [2024-11-19 06:07:37,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:37,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940397336] [2024-11-19 06:07:37,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:37,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:37,262 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2024-11-19 06:07:37,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:37,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940397336] [2024-11-19 06:07:37,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940397336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:37,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:37,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:37,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826767618] [2024-11-19 06:07:37,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:37,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:37,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:37,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:37,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:37,308 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 368 [2024-11-19 06:07:37,309 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) [2024-11-19 06:07:37,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:37,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 368 [2024-11-19 06:07:37,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:37,335 INFO L124 PetriNetUnfolderBase]: 0/218 cut-off events. [2024-11-19 06:07:37,335 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-19 06:07:37,335 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. [2024-11-19 06:07:37,336 INFO L140 encePairwiseOnDemand]: 363/368 looper letters, 16 selfloop transitions, 2 changer transitions 3/109 dead transitions. [2024-11-19 06:07:37,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 109 transitions, 308 flow [2024-11-19 06:07:37,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:37,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:37,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1547 transitions. [2024-11-19 06:07:37,338 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8407608695652173 [2024-11-19 06:07:37,338 INFO L175 Difference]: Start difference. First operand has 150 places, 107 transitions, 262 flow. Second operand 5 states and 1547 transitions. [2024-11-19 06:07:37,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 109 transitions, 308 flow [2024-11-19 06:07:37,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 109 transitions, 307 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:37,340 INFO L231 Difference]: Finished difference. Result has 130 places, 106 transitions, 267 flow [2024-11-19 06:07:37,340 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} [2024-11-19 06:07:37,340 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, -26 predicate places. [2024-11-19 06:07:37,340 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 106 transitions, 267 flow [2024-11-19 06:07:37,341 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) [2024-11-19 06:07:37,341 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:37,341 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] [2024-11-19 06:07:37,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-19 06:07:37,341 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)] === [2024-11-19 06:07:37,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:37,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1675533133, now seen corresponding path program 1 times [2024-11-19 06:07:37,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:37,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191018616] [2024-11-19 06:07:37,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:37,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:37,357 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:37,378 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:37,378 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:37,378 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-11-19 06:07:37,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-11-19 06:07:37,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-11-19 06:07:37,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-11-19 06:07:37,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-11-19 06:07:37,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-11-19 06:07:37,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 16 remaining) [2024-11-19 06:07:37,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-11-19 06:07:37,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-11-19 06:07:37,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-11-19 06:07:37,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-11-19 06:07:37,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-11-19 06:07:37,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-11-19 06:07:37,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-11-19 06:07:37,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-11-19 06:07:37,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-11-19 06:07:37,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-19 06:07:37,379 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:37,380 WARN L244 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:37,380 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2024-11-19 06:07:37,428 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:37,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 404 places, 405 transitions, 1026 flow [2024-11-19 06:07:37,493 INFO L124 PetriNetUnfolderBase]: 52/671 cut-off events. [2024-11-19 06:07:37,493 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2024-11-19 06:07:37,495 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. [2024-11-19 06:07:37,495 INFO L82 GeneralOperation]: Start removeDead. Operand has 404 places, 405 transitions, 1026 flow [2024-11-19 06:07:37,496 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 165 places, 148 transitions, 407 flow [2024-11-19 06:07:37,497 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:37,497 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:37,497 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-19 06:07:37,498 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:37,498 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:37,498 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:37,498 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:37,498 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:37,498 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)] === [2024-11-19 06:07:37,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:37,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1557857277, now seen corresponding path program 1 times [2024-11-19 06:07:37,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:37,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286977304] [2024-11-19 06:07:37,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:37,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:37,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:37,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:37,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286977304] [2024-11-19 06:07:37,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286977304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:37,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:37,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:37,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905445626] [2024-11-19 06:07:37,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:37,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:37,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:37,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:37,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:37,562 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 405 [2024-11-19 06:07:37,563 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) [2024-11-19 06:07:37,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:37,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 405 [2024-11-19 06:07:37,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:37,620 INFO L124 PetriNetUnfolderBase]: 21/519 cut-off events. [2024-11-19 06:07:37,620 INFO L125 PetriNetUnfolderBase]: For 211/211 co-relation queries the response was YES. [2024-11-19 06:07:37,622 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. [2024-11-19 06:07:37,623 INFO L140 encePairwiseOnDemand]: 399/405 looper letters, 19 selfloop transitions, 2 changer transitions 1/144 dead transitions. [2024-11-19 06:07:37,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 144 transitions, 441 flow [2024-11-19 06:07:37,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:37,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:37,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1012 transitions. [2024-11-19 06:07:37,625 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8329218106995885 [2024-11-19 06:07:37,625 INFO L175 Difference]: Start difference. First operand has 165 places, 148 transitions, 407 flow. Second operand 3 states and 1012 transitions. [2024-11-19 06:07:37,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 144 transitions, 441 flow [2024-11-19 06:07:37,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 144 transitions, 384 flow, removed 28 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:37,627 INFO L231 Difference]: Finished difference. Result has 165 places, 143 transitions, 344 flow [2024-11-19 06:07:37,627 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} [2024-11-19 06:07:37,627 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 0 predicate places. [2024-11-19 06:07:37,627 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 143 transitions, 344 flow [2024-11-19 06:07:37,628 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) [2024-11-19 06:07:37,628 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:37,628 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] [2024-11-19 06:07:37,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-19 06:07:37,628 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)] === [2024-11-19 06:07:37,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:37,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1425528326, now seen corresponding path program 1 times [2024-11-19 06:07:37,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:37,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074495188] [2024-11-19 06:07:37,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:37,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:37,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:37,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:37,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074495188] [2024-11-19 06:07:37,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074495188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:37,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:37,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:37,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902521183] [2024-11-19 06:07:37,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:37,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:37,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:37,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:37,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:37,678 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 405 [2024-11-19 06:07:37,679 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) [2024-11-19 06:07:37,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:37,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 405 [2024-11-19 06:07:37,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:37,724 INFO L124 PetriNetUnfolderBase]: 11/465 cut-off events. [2024-11-19 06:07:37,724 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-19 06:07:37,725 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. [2024-11-19 06:07:37,726 INFO L140 encePairwiseOnDemand]: 399/405 looper letters, 17 selfloop transitions, 1 changer transitions 24/138 dead transitions. [2024-11-19 06:07:37,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 138 transitions, 374 flow [2024-11-19 06:07:37,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:37,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:37,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 952 transitions. [2024-11-19 06:07:37,728 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7835390946502058 [2024-11-19 06:07:37,728 INFO L175 Difference]: Start difference. First operand has 165 places, 143 transitions, 344 flow. Second operand 3 states and 952 transitions. [2024-11-19 06:07:37,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 138 transitions, 374 flow [2024-11-19 06:07:37,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 138 transitions, 370 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:37,730 INFO L231 Difference]: Finished difference. Result has 159 places, 114 transitions, 282 flow [2024-11-19 06:07:37,730 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} [2024-11-19 06:07:37,730 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, -6 predicate places. [2024-11-19 06:07:37,730 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 114 transitions, 282 flow [2024-11-19 06:07:37,730 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) [2024-11-19 06:07:37,731 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:37,731 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] [2024-11-19 06:07:37,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-19 06:07:37,731 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)] === [2024-11-19 06:07:37,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:37,731 INFO L85 PathProgramCache]: Analyzing trace with hash -751325389, now seen corresponding path program 1 times [2024-11-19 06:07:37,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:37,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313425128] [2024-11-19 06:07:37,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:37,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:37,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:37,845 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2024-11-19 06:07:37,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:37,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313425128] [2024-11-19 06:07:37,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313425128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:37,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:37,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:37,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549408274] [2024-11-19 06:07:37,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:37,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:37,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:37,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:37,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:37,895 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 405 [2024-11-19 06:07:37,896 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) [2024-11-19 06:07:37,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:37,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 405 [2024-11-19 06:07:37,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:37,953 INFO L124 PetriNetUnfolderBase]: 0/238 cut-off events. [2024-11-19 06:07:37,953 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2024-11-19 06:07:37,954 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. [2024-11-19 06:07:37,954 INFO L140 encePairwiseOnDemand]: 400/405 looper letters, 17 selfloop transitions, 2 changer transitions 3/116 dead transitions. [2024-11-19 06:07:37,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 116 transitions, 330 flow [2024-11-19 06:07:37,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:37,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:37,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1703 transitions. [2024-11-19 06:07:37,958 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8409876543209877 [2024-11-19 06:07:37,958 INFO L175 Difference]: Start difference. First operand has 159 places, 114 transitions, 282 flow. Second operand 5 states and 1703 transitions. [2024-11-19 06:07:37,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 116 transitions, 330 flow [2024-11-19 06:07:37,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 116 transitions, 329 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:37,960 INFO L231 Difference]: Finished difference. Result has 139 places, 113 transitions, 287 flow [2024-11-19 06:07:37,960 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} [2024-11-19 06:07:37,960 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, -26 predicate places. [2024-11-19 06:07:37,960 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 113 transitions, 287 flow [2024-11-19 06:07:37,961 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) [2024-11-19 06:07:37,961 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:37,961 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] [2024-11-19 06:07:37,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-19 06:07:37,961 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)] === [2024-11-19 06:07:37,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:37,961 INFO L85 PathProgramCache]: Analyzing trace with hash -139926656, now seen corresponding path program 1 times [2024-11-19 06:07:37,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:37,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997968270] [2024-11-19 06:07:37,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:37,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:37,977 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:37,998 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:37,998 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:37,998 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-11-19 06:07:37,998 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2024-11-19 06:07:37,998 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2024-11-19 06:07:37,998 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2024-11-19 06:07:37,998 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2024-11-19 06:07:37,998 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2024-11-19 06:07:37,998 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 17 remaining) [2024-11-19 06:07:37,998 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2024-11-19 06:07:37,999 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2024-11-19 06:07:37,999 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2024-11-19 06:07:37,999 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2024-11-19 06:07:37,999 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2024-11-19 06:07:37,999 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2024-11-19 06:07:37,999 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2024-11-19 06:07:37,999 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2024-11-19 06:07:37,999 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2024-11-19 06:07:37,999 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2024-11-19 06:07:37,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-19 06:07:37,999 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:37,999 WARN L244 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:38,000 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2024-11-19 06:07:38,047 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:38,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 441 places, 442 transitions, 1144 flow [2024-11-19 06:07:38,102 INFO L124 PetriNetUnfolderBase]: 57/735 cut-off events. [2024-11-19 06:07:38,102 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2024-11-19 06:07:38,105 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. [2024-11-19 06:07:38,105 INFO L82 GeneralOperation]: Start removeDead. Operand has 441 places, 442 transitions, 1144 flow [2024-11-19 06:07:38,108 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 155 transitions, 443 flow [2024-11-19 06:07:38,108 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:38,109 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:38,109 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-19 06:07:38,110 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:38,110 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:38,110 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:38,110 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:38,111 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:38,111 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)] === [2024-11-19 06:07:38,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:38,111 INFO L85 PathProgramCache]: Analyzing trace with hash -516950525, now seen corresponding path program 1 times [2024-11-19 06:07:38,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:38,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411737563] [2024-11-19 06:07:38,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:38,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:38,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:38,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:38,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411737563] [2024-11-19 06:07:38,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411737563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:38,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:38,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:38,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629945774] [2024-11-19 06:07:38,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:38,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:38,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:38,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:38,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:38,180 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 359 out of 442 [2024-11-19 06:07:38,181 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) [2024-11-19 06:07:38,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:38,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 442 [2024-11-19 06:07:38,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:38,257 INFO L124 PetriNetUnfolderBase]: 23/568 cut-off events. [2024-11-19 06:07:38,257 INFO L125 PetriNetUnfolderBase]: For 276/276 co-relation queries the response was YES. [2024-11-19 06:07:38,258 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. [2024-11-19 06:07:38,259 INFO L140 encePairwiseOnDemand]: 436/442 looper letters, 20 selfloop transitions, 2 changer transitions 1/151 dead transitions. [2024-11-19 06:07:38,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 151 transitions, 479 flow [2024-11-19 06:07:38,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:38,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:38,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1103 transitions. [2024-11-19 06:07:38,262 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8318250377073907 [2024-11-19 06:07:38,262 INFO L175 Difference]: Start difference. First operand has 174 places, 155 transitions, 443 flow. Second operand 3 states and 1103 transitions. [2024-11-19 06:07:38,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 151 transitions, 479 flow [2024-11-19 06:07:38,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 151 transitions, 406 flow, removed 36 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:38,264 INFO L231 Difference]: Finished difference. Result has 174 places, 150 transitions, 364 flow [2024-11-19 06:07:38,265 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} [2024-11-19 06:07:38,265 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, 0 predicate places. [2024-11-19 06:07:38,265 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 150 transitions, 364 flow [2024-11-19 06:07:38,265 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) [2024-11-19 06:07:38,266 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:38,266 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] [2024-11-19 06:07:38,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-19 06:07:38,266 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)] === [2024-11-19 06:07:38,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:38,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1103457926, now seen corresponding path program 1 times [2024-11-19 06:07:38,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:38,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781310077] [2024-11-19 06:07:38,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:38,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:38,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:38,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:38,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781310077] [2024-11-19 06:07:38,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781310077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:38,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:38,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:38,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158772061] [2024-11-19 06:07:38,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:38,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:38,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:38,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:38,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:38,317 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 442 [2024-11-19 06:07:38,318 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) [2024-11-19 06:07:38,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:38,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 442 [2024-11-19 06:07:38,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:38,368 INFO L124 PetriNetUnfolderBase]: 12/509 cut-off events. [2024-11-19 06:07:38,369 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-19 06:07:38,370 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. [2024-11-19 06:07:38,371 INFO L140 encePairwiseOnDemand]: 436/442 looper letters, 18 selfloop transitions, 1 changer transitions 24/145 dead transitions. [2024-11-19 06:07:38,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 145 transitions, 396 flow [2024-11-19 06:07:38,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:38,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:38,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1037 transitions. [2024-11-19 06:07:38,372 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.782051282051282 [2024-11-19 06:07:38,372 INFO L175 Difference]: Start difference. First operand has 174 places, 150 transitions, 364 flow. Second operand 3 states and 1037 transitions. [2024-11-19 06:07:38,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 145 transitions, 396 flow [2024-11-19 06:07:38,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 145 transitions, 392 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:38,374 INFO L231 Difference]: Finished difference. Result has 168 places, 121 transitions, 302 flow [2024-11-19 06:07:38,374 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} [2024-11-19 06:07:38,375 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -6 predicate places. [2024-11-19 06:07:38,375 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 121 transitions, 302 flow [2024-11-19 06:07:38,376 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) [2024-11-19 06:07:38,376 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:38,376 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] [2024-11-19 06:07:38,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-19 06:07:38,376 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)] === [2024-11-19 06:07:38,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:38,377 INFO L85 PathProgramCache]: Analyzing trace with hash 195795815, now seen corresponding path program 1 times [2024-11-19 06:07:38,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:38,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179303301] [2024-11-19 06:07:38,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:38,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:38,448 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2024-11-19 06:07:38,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:38,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179303301] [2024-11-19 06:07:38,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179303301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:38,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:38,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:38,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247822427] [2024-11-19 06:07:38,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:38,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:38,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:38,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:38,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:38,503 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 442 [2024-11-19 06:07:38,505 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) [2024-11-19 06:07:38,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:38,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 442 [2024-11-19 06:07:38,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:38,541 INFO L124 PetriNetUnfolderBase]: 0/258 cut-off events. [2024-11-19 06:07:38,541 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2024-11-19 06:07:38,541 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. [2024-11-19 06:07:38,541 INFO L140 encePairwiseOnDemand]: 437/442 looper letters, 18 selfloop transitions, 2 changer transitions 3/123 dead transitions. [2024-11-19 06:07:38,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 123 transitions, 352 flow [2024-11-19 06:07:38,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:38,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:38,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1859 transitions. [2024-11-19 06:07:38,543 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8411764705882353 [2024-11-19 06:07:38,544 INFO L175 Difference]: Start difference. First operand has 168 places, 121 transitions, 302 flow. Second operand 5 states and 1859 transitions. [2024-11-19 06:07:38,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 123 transitions, 352 flow [2024-11-19 06:07:38,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 123 transitions, 351 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:38,545 INFO L231 Difference]: Finished difference. Result has 148 places, 120 transitions, 307 flow [2024-11-19 06:07:38,546 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} [2024-11-19 06:07:38,546 INFO L277 CegarLoopForPetriNet]: 174 programPoint places, -26 predicate places. [2024-11-19 06:07:38,546 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 120 transitions, 307 flow [2024-11-19 06:07:38,547 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) [2024-11-19 06:07:38,547 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:38,547 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] [2024-11-19 06:07:38,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-19 06:07:38,547 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-19 06:07:38,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:38,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1210927802, now seen corresponding path program 1 times [2024-11-19 06:07:38,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:38,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340515363] [2024-11-19 06:07:38,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:38,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:38,563 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:38,587 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:38,587 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:38,588 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-19 06:07:38,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-19 06:07:38,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-19 06:07:38,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-19 06:07:38,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-19 06:07:38,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-19 06:07:38,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 18 remaining) [2024-11-19 06:07:38,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-19 06:07:38,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-19 06:07:38,588 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-19 06:07:38,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-19 06:07:38,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-19 06:07:38,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-19 06:07:38,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-19 06:07:38,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-19 06:07:38,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-19 06:07:38,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-19 06:07:38,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-19 06:07:38,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-19 06:07:38,589 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:38,590 WARN L244 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:38,590 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2024-11-19 06:07:38,664 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:38,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 478 places, 479 transitions, 1266 flow [2024-11-19 06:07:38,724 INFO L124 PetriNetUnfolderBase]: 62/799 cut-off events. [2024-11-19 06:07:38,724 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2024-11-19 06:07:38,726 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. [2024-11-19 06:07:38,726 INFO L82 GeneralOperation]: Start removeDead. Operand has 478 places, 479 transitions, 1266 flow [2024-11-19 06:07:38,729 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 183 places, 162 transitions, 481 flow [2024-11-19 06:07:38,729 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:38,730 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:38,730 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-19 06:07:38,731 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:38,731 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:38,731 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:38,731 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:38,731 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:38,731 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)] === [2024-11-19 06:07:38,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:38,731 INFO L85 PathProgramCache]: Analyzing trace with hash 475051267, now seen corresponding path program 1 times [2024-11-19 06:07:38,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:38,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762615917] [2024-11-19 06:07:38,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:38,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:38,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:38,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:38,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:38,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762615917] [2024-11-19 06:07:38,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762615917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:38,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:38,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:38,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89634777] [2024-11-19 06:07:38,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:38,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:38,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:38,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:38,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:38,792 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 479 [2024-11-19 06:07:38,793 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) [2024-11-19 06:07:38,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:38,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 479 [2024-11-19 06:07:38,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:38,852 INFO L124 PetriNetUnfolderBase]: 25/617 cut-off events. [2024-11-19 06:07:38,852 INFO L125 PetriNetUnfolderBase]: For 353/353 co-relation queries the response was YES. [2024-11-19 06:07:38,854 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. [2024-11-19 06:07:38,855 INFO L140 encePairwiseOnDemand]: 473/479 looper letters, 21 selfloop transitions, 2 changer transitions 1/158 dead transitions. [2024-11-19 06:07:38,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 158 transitions, 519 flow [2024-11-19 06:07:38,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:38,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:38,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1194 transitions. [2024-11-19 06:07:38,857 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8308977035490606 [2024-11-19 06:07:38,857 INFO L175 Difference]: Start difference. First operand has 183 places, 162 transitions, 481 flow. Second operand 3 states and 1194 transitions. [2024-11-19 06:07:38,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 158 transitions, 519 flow [2024-11-19 06:07:38,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 158 transitions, 428 flow, removed 45 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:38,859 INFO L231 Difference]: Finished difference. Result has 183 places, 157 transitions, 384 flow [2024-11-19 06:07:38,859 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} [2024-11-19 06:07:38,859 INFO L277 CegarLoopForPetriNet]: 183 programPoint places, 0 predicate places. [2024-11-19 06:07:38,860 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 157 transitions, 384 flow [2024-11-19 06:07:38,860 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) [2024-11-19 06:07:38,860 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:38,860 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] [2024-11-19 06:07:38,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-19 06:07:38,860 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)] === [2024-11-19 06:07:38,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:38,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1901047110, now seen corresponding path program 1 times [2024-11-19 06:07:38,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:38,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769538871] [2024-11-19 06:07:38,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:38,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:38,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:38,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:38,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:38,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769538871] [2024-11-19 06:07:38,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769538871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:38,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:38,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:38,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417455353] [2024-11-19 06:07:38,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:38,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:38,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:38,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:38,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:38,911 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 479 [2024-11-19 06:07:38,912 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) [2024-11-19 06:07:38,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:38,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 479 [2024-11-19 06:07:38,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:38,964 INFO L124 PetriNetUnfolderBase]: 13/553 cut-off events. [2024-11-19 06:07:38,964 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2024-11-19 06:07:38,966 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. [2024-11-19 06:07:38,967 INFO L140 encePairwiseOnDemand]: 473/479 looper letters, 19 selfloop transitions, 1 changer transitions 24/152 dead transitions. [2024-11-19 06:07:38,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 152 transitions, 418 flow [2024-11-19 06:07:38,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:38,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:38,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1122 transitions. [2024-11-19 06:07:38,968 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7807933194154488 [2024-11-19 06:07:38,968 INFO L175 Difference]: Start difference. First operand has 183 places, 157 transitions, 384 flow. Second operand 3 states and 1122 transitions. [2024-11-19 06:07:38,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 152 transitions, 418 flow [2024-11-19 06:07:38,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 152 transitions, 414 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:38,970 INFO L231 Difference]: Finished difference. Result has 177 places, 128 transitions, 322 flow [2024-11-19 06:07:38,970 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} [2024-11-19 06:07:38,970 INFO L277 CegarLoopForPetriNet]: 183 programPoint places, -6 predicate places. [2024-11-19 06:07:38,970 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 128 transitions, 322 flow [2024-11-19 06:07:38,971 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) [2024-11-19 06:07:38,971 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:38,971 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] [2024-11-19 06:07:38,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-19 06:07:38,971 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)] === [2024-11-19 06:07:38,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:38,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1343247129, now seen corresponding path program 1 times [2024-11-19 06:07:38,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:38,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875884012] [2024-11-19 06:07:38,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:38,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:39,067 INFO L134 CoverageAnalysis]: Checked inductivity of 858 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 825 trivial. 0 not checked. [2024-11-19 06:07:39,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:39,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875884012] [2024-11-19 06:07:39,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875884012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:39,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:39,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:39,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312638331] [2024-11-19 06:07:39,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:39,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:39,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:39,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:39,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:39,122 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 479 [2024-11-19 06:07:39,124 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) [2024-11-19 06:07:39,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:39,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 479 [2024-11-19 06:07:39,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:39,162 INFO L124 PetriNetUnfolderBase]: 0/278 cut-off events. [2024-11-19 06:07:39,162 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2024-11-19 06:07:39,163 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. [2024-11-19 06:07:39,163 INFO L140 encePairwiseOnDemand]: 474/479 looper letters, 19 selfloop transitions, 2 changer transitions 3/130 dead transitions. [2024-11-19 06:07:39,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 130 transitions, 374 flow [2024-11-19 06:07:39,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:39,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:39,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2015 transitions. [2024-11-19 06:07:39,165 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8413361169102297 [2024-11-19 06:07:39,165 INFO L175 Difference]: Start difference. First operand has 177 places, 128 transitions, 322 flow. Second operand 5 states and 2015 transitions. [2024-11-19 06:07:39,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 130 transitions, 374 flow [2024-11-19 06:07:39,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 130 transitions, 373 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:39,167 INFO L231 Difference]: Finished difference. Result has 157 places, 127 transitions, 327 flow [2024-11-19 06:07:39,167 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} [2024-11-19 06:07:39,167 INFO L277 CegarLoopForPetriNet]: 183 programPoint places, -26 predicate places. [2024-11-19 06:07:39,167 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 127 transitions, 327 flow [2024-11-19 06:07:39,168 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) [2024-11-19 06:07:39,168 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:39,168 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] [2024-11-19 06:07:39,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-19 06:07:39,169 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)] === [2024-11-19 06:07:39,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:39,169 INFO L85 PathProgramCache]: Analyzing trace with hash -38338405, now seen corresponding path program 1 times [2024-11-19 06:07:39,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:39,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447150921] [2024-11-19 06:07:39,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:39,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:39,191 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:39,219 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:39,219 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:39,219 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2024-11-19 06:07:39,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2024-11-19 06:07:39,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2024-11-19 06:07:39,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2024-11-19 06:07:39,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2024-11-19 06:07:39,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2024-11-19 06:07:39,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 19 remaining) [2024-11-19 06:07:39,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2024-11-19 06:07:39,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2024-11-19 06:07:39,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2024-11-19 06:07:39,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2024-11-19 06:07:39,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 19 remaining) [2024-11-19 06:07:39,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2024-11-19 06:07:39,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2024-11-19 06:07:39,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2024-11-19 06:07:39,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2024-11-19 06:07:39,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2024-11-19 06:07:39,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2024-11-19 06:07:39,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2024-11-19 06:07:39,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-19 06:07:39,221 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:39,221 WARN L244 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:39,221 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2024-11-19 06:07:39,277 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:39,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 515 places, 516 transitions, 1392 flow [2024-11-19 06:07:39,367 INFO L124 PetriNetUnfolderBase]: 67/863 cut-off events. [2024-11-19 06:07:39,368 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2024-11-19 06:07:39,369 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. [2024-11-19 06:07:39,369 INFO L82 GeneralOperation]: Start removeDead. Operand has 515 places, 516 transitions, 1392 flow [2024-11-19 06:07:39,371 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 192 places, 169 transitions, 521 flow [2024-11-19 06:07:39,372 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:39,372 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:39,372 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-19 06:07:39,374 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:39,374 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:39,374 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:39,374 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:39,374 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:39,374 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)] === [2024-11-19 06:07:39,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:39,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1418148099, now seen corresponding path program 1 times [2024-11-19 06:07:39,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:39,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499966360] [2024-11-19 06:07:39,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:39,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:39,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:39,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:39,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:39,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499966360] [2024-11-19 06:07:39,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499966360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:39,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:39,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:39,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812570687] [2024-11-19 06:07:39,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:39,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:39,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:39,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:39,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:39,458 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 419 out of 516 [2024-11-19 06:07:39,459 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) [2024-11-19 06:07:39,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:39,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 419 of 516 [2024-11-19 06:07:39,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:39,558 INFO L124 PetriNetUnfolderBase]: 27/666 cut-off events. [2024-11-19 06:07:39,558 INFO L125 PetriNetUnfolderBase]: For 443/443 co-relation queries the response was YES. [2024-11-19 06:07:39,561 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. [2024-11-19 06:07:39,563 INFO L140 encePairwiseOnDemand]: 510/516 looper letters, 22 selfloop transitions, 2 changer transitions 1/165 dead transitions. [2024-11-19 06:07:39,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 165 transitions, 561 flow [2024-11-19 06:07:39,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:39,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:39,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1285 transitions. [2024-11-19 06:07:39,569 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8301033591731266 [2024-11-19 06:07:39,569 INFO L175 Difference]: Start difference. First operand has 192 places, 169 transitions, 521 flow. Second operand 3 states and 1285 transitions. [2024-11-19 06:07:39,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 165 transitions, 561 flow [2024-11-19 06:07:39,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 165 transitions, 450 flow, removed 55 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:39,573 INFO L231 Difference]: Finished difference. Result has 192 places, 164 transitions, 404 flow [2024-11-19 06:07:39,573 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} [2024-11-19 06:07:39,574 INFO L277 CegarLoopForPetriNet]: 192 programPoint places, 0 predicate places. [2024-11-19 06:07:39,574 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 164 transitions, 404 flow [2024-11-19 06:07:39,578 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) [2024-11-19 06:07:39,578 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:39,578 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:39,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-19 06:07:39,579 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)] === [2024-11-19 06:07:39,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:39,579 INFO L85 PathProgramCache]: Analyzing trace with hash -476671418, now seen corresponding path program 1 times [2024-11-19 06:07:39,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:39,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166477762] [2024-11-19 06:07:39,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:39,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:39,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:39,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:39,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166477762] [2024-11-19 06:07:39,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166477762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:39,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:39,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:39,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004951165] [2024-11-19 06:07:39,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:39,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:39,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:39,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:39,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:39,646 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 516 [2024-11-19 06:07:39,651 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) [2024-11-19 06:07:39,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:39,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 516 [2024-11-19 06:07:39,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:39,745 INFO L124 PetriNetUnfolderBase]: 14/597 cut-off events. [2024-11-19 06:07:39,745 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-11-19 06:07:39,748 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. [2024-11-19 06:07:39,749 INFO L140 encePairwiseOnDemand]: 510/516 looper letters, 20 selfloop transitions, 1 changer transitions 24/159 dead transitions. [2024-11-19 06:07:39,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 159 transitions, 440 flow [2024-11-19 06:07:39,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:39,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:39,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1207 transitions. [2024-11-19 06:07:39,751 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7797157622739018 [2024-11-19 06:07:39,751 INFO L175 Difference]: Start difference. First operand has 192 places, 164 transitions, 404 flow. Second operand 3 states and 1207 transitions. [2024-11-19 06:07:39,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 159 transitions, 440 flow [2024-11-19 06:07:39,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 159 transitions, 436 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:39,754 INFO L231 Difference]: Finished difference. Result has 186 places, 135 transitions, 342 flow [2024-11-19 06:07:39,754 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} [2024-11-19 06:07:39,754 INFO L277 CegarLoopForPetriNet]: 192 programPoint places, -6 predicate places. [2024-11-19 06:07:39,754 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 135 transitions, 342 flow [2024-11-19 06:07:39,755 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) [2024-11-19 06:07:39,755 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:39,755 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] [2024-11-19 06:07:39,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-19 06:07:39,755 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)] === [2024-11-19 06:07:39,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:39,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1770390803, now seen corresponding path program 1 times [2024-11-19 06:07:39,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:39,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570394032] [2024-11-19 06:07:39,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:39,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:39,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 984 trivial. 0 not checked. [2024-11-19 06:07:39,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:39,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570394032] [2024-11-19 06:07:39,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570394032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:39,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:39,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:39,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318140023] [2024-11-19 06:07:39,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:39,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:39,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:39,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:39,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:39,912 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 516 [2024-11-19 06:07:39,914 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) [2024-11-19 06:07:39,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:39,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 516 [2024-11-19 06:07:39,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:39,953 INFO L124 PetriNetUnfolderBase]: 0/298 cut-off events. [2024-11-19 06:07:39,954 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2024-11-19 06:07:39,954 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. [2024-11-19 06:07:39,954 INFO L140 encePairwiseOnDemand]: 511/516 looper letters, 20 selfloop transitions, 2 changer transitions 3/137 dead transitions. [2024-11-19 06:07:39,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 137 transitions, 396 flow [2024-11-19 06:07:39,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:39,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:39,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2171 transitions. [2024-11-19 06:07:39,958 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8414728682170542 [2024-11-19 06:07:39,958 INFO L175 Difference]: Start difference. First operand has 186 places, 135 transitions, 342 flow. Second operand 5 states and 2171 transitions. [2024-11-19 06:07:39,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 137 transitions, 396 flow [2024-11-19 06:07:39,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 137 transitions, 395 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:39,960 INFO L231 Difference]: Finished difference. Result has 166 places, 134 transitions, 347 flow [2024-11-19 06:07:39,961 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} [2024-11-19 06:07:39,961 INFO L277 CegarLoopForPetriNet]: 192 programPoint places, -26 predicate places. [2024-11-19 06:07:39,961 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 134 transitions, 347 flow [2024-11-19 06:07:39,961 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) [2024-11-19 06:07:39,962 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:39,962 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] [2024-11-19 06:07:39,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-19 06:07:39,962 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)] === [2024-11-19 06:07:39,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:39,962 INFO L85 PathProgramCache]: Analyzing trace with hash -330165053, now seen corresponding path program 1 times [2024-11-19 06:07:39,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:39,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533407985] [2024-11-19 06:07:39,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:39,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:40,005 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:40,049 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:40,049 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:40,049 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-19 06:07:40,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-19 06:07:40,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-19 06:07:40,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-19 06:07:40,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-19 06:07:40,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-19 06:07:40,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 20 remaining) [2024-11-19 06:07:40,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-19 06:07:40,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-19 06:07:40,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-19 06:07:40,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-19 06:07:40,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-19 06:07:40,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-19 06:07:40,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-19 06:07:40,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-19 06:07:40,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-19 06:07:40,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-19 06:07:40,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-19 06:07:40,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-19 06:07:40,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-19 06:07:40,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-19 06:07:40,051 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:40,052 WARN L244 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:40,052 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2024-11-19 06:07:40,111 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:40,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 552 places, 553 transitions, 1522 flow [2024-11-19 06:07:40,184 INFO L124 PetriNetUnfolderBase]: 72/927 cut-off events. [2024-11-19 06:07:40,184 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2024-11-19 06:07:40,188 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. [2024-11-19 06:07:40,188 INFO L82 GeneralOperation]: Start removeDead. Operand has 552 places, 553 transitions, 1522 flow [2024-11-19 06:07:40,191 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 201 places, 176 transitions, 563 flow [2024-11-19 06:07:40,191 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:40,191 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:40,192 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-19 06:07:40,192 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:40,193 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:40,193 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:40,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:40,193 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:40,193 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)] === [2024-11-19 06:07:40,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:40,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1982627325, now seen corresponding path program 1 times [2024-11-19 06:07:40,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:40,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294812743] [2024-11-19 06:07:40,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:40,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:40,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:40,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:40,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294812743] [2024-11-19 06:07:40,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294812743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:40,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:40,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:40,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093601387] [2024-11-19 06:07:40,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:40,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:40,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:40,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:40,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:40,268 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 553 [2024-11-19 06:07:40,270 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) [2024-11-19 06:07:40,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:40,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 553 [2024-11-19 06:07:40,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:40,351 INFO L124 PetriNetUnfolderBase]: 29/715 cut-off events. [2024-11-19 06:07:40,351 INFO L125 PetriNetUnfolderBase]: For 547/547 co-relation queries the response was YES. [2024-11-19 06:07:40,354 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. [2024-11-19 06:07:40,355 INFO L140 encePairwiseOnDemand]: 547/553 looper letters, 23 selfloop transitions, 2 changer transitions 1/172 dead transitions. [2024-11-19 06:07:40,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 172 transitions, 605 flow [2024-11-19 06:07:40,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:40,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:40,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1376 transitions. [2024-11-19 06:07:40,357 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8294153104279687 [2024-11-19 06:07:40,357 INFO L175 Difference]: Start difference. First operand has 201 places, 176 transitions, 563 flow. Second operand 3 states and 1376 transitions. [2024-11-19 06:07:40,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 172 transitions, 605 flow [2024-11-19 06:07:40,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 172 transitions, 472 flow, removed 66 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:40,360 INFO L231 Difference]: Finished difference. Result has 201 places, 171 transitions, 424 flow [2024-11-19 06:07:40,360 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} [2024-11-19 06:07:40,361 INFO L277 CegarLoopForPetriNet]: 201 programPoint places, 0 predicate places. [2024-11-19 06:07:40,361 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 171 transitions, 424 flow [2024-11-19 06:07:40,361 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) [2024-11-19 06:07:40,361 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:40,362 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] [2024-11-19 06:07:40,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-19 06:07:40,362 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)] === [2024-11-19 06:07:40,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:40,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1734730362, now seen corresponding path program 1 times [2024-11-19 06:07:40,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:40,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920865558] [2024-11-19 06:07:40,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:40,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:40,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:40,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:40,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920865558] [2024-11-19 06:07:40,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920865558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:40,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:40,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:40,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566413884] [2024-11-19 06:07:40,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:40,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:40,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:40,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:40,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:40,422 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 421 out of 553 [2024-11-19 06:07:40,423 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) [2024-11-19 06:07:40,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:40,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 421 of 553 [2024-11-19 06:07:40,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:40,492 INFO L124 PetriNetUnfolderBase]: 15/641 cut-off events. [2024-11-19 06:07:40,492 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2024-11-19 06:07:40,495 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. [2024-11-19 06:07:40,496 INFO L140 encePairwiseOnDemand]: 547/553 looper letters, 21 selfloop transitions, 1 changer transitions 24/166 dead transitions. [2024-11-19 06:07:40,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 166 transitions, 462 flow [2024-11-19 06:07:40,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:40,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:40,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1292 transitions. [2024-11-19 06:07:40,498 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7787823990355636 [2024-11-19 06:07:40,498 INFO L175 Difference]: Start difference. First operand has 201 places, 171 transitions, 424 flow. Second operand 3 states and 1292 transitions. [2024-11-19 06:07:40,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 166 transitions, 462 flow [2024-11-19 06:07:40,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 166 transitions, 458 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:40,500 INFO L231 Difference]: Finished difference. Result has 195 places, 142 transitions, 362 flow [2024-11-19 06:07:40,500 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} [2024-11-19 06:07:40,501 INFO L277 CegarLoopForPetriNet]: 201 programPoint places, -6 predicate places. [2024-11-19 06:07:40,501 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 142 transitions, 362 flow [2024-11-19 06:07:40,501 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) [2024-11-19 06:07:40,501 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:40,502 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] [2024-11-19 06:07:40,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-19 06:07:40,502 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)] === [2024-11-19 06:07:40,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:40,502 INFO L85 PathProgramCache]: Analyzing trace with hash -925268661, now seen corresponding path program 1 times [2024-11-19 06:07:40,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:40,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720168474] [2024-11-19 06:07:40,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:40,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:40,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1196 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 1157 trivial. 0 not checked. [2024-11-19 06:07:40,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:40,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720168474] [2024-11-19 06:07:40,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720168474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:40,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:40,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:40,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522943109] [2024-11-19 06:07:40,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:40,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:40,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:40,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:40,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:40,671 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 553 [2024-11-19 06:07:40,673 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) [2024-11-19 06:07:40,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:40,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 553 [2024-11-19 06:07:40,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:40,731 INFO L124 PetriNetUnfolderBase]: 0/318 cut-off events. [2024-11-19 06:07:40,731 INFO L125 PetriNetUnfolderBase]: For 115/115 co-relation queries the response was YES. [2024-11-19 06:07:40,731 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. [2024-11-19 06:07:40,732 INFO L140 encePairwiseOnDemand]: 548/553 looper letters, 21 selfloop transitions, 2 changer transitions 3/144 dead transitions. [2024-11-19 06:07:40,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 144 transitions, 418 flow [2024-11-19 06:07:40,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:40,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:40,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2327 transitions. [2024-11-19 06:07:40,734 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8415913200723327 [2024-11-19 06:07:40,734 INFO L175 Difference]: Start difference. First operand has 195 places, 142 transitions, 362 flow. Second operand 5 states and 2327 transitions. [2024-11-19 06:07:40,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 144 transitions, 418 flow [2024-11-19 06:07:40,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 144 transitions, 417 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:40,737 INFO L231 Difference]: Finished difference. Result has 175 places, 141 transitions, 367 flow [2024-11-19 06:07:40,737 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} [2024-11-19 06:07:40,737 INFO L277 CegarLoopForPetriNet]: 201 programPoint places, -26 predicate places. [2024-11-19 06:07:40,737 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 141 transitions, 367 flow [2024-11-19 06:07:40,738 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) [2024-11-19 06:07:40,738 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:40,738 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] [2024-11-19 06:07:40,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-19 06:07:40,738 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)] === [2024-11-19 06:07:40,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:40,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1324910894, now seen corresponding path program 1 times [2024-11-19 06:07:40,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:40,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9195396] [2024-11-19 06:07:40,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:40,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:40,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:40,760 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:40,797 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:40,797 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:40,798 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-19 06:07:40,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2024-11-19 06:07:40,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2024-11-19 06:07:40,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2024-11-19 06:07:40,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2024-11-19 06:07:40,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2024-11-19 06:07:40,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 21 remaining) [2024-11-19 06:07:40,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2024-11-19 06:07:40,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2024-11-19 06:07:40,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining) [2024-11-19 06:07:40,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2024-11-19 06:07:40,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2024-11-19 06:07:40,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2024-11-19 06:07:40,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2024-11-19 06:07:40,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2024-11-19 06:07:40,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2024-11-19 06:07:40,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2024-11-19 06:07:40,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2024-11-19 06:07:40,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2024-11-19 06:07:40,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2024-11-19 06:07:40,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2024-11-19 06:07:40,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-19 06:07:40,800 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:40,800 WARN L244 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:40,800 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2024-11-19 06:07:40,862 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:40,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 589 places, 590 transitions, 1656 flow [2024-11-19 06:07:40,950 INFO L124 PetriNetUnfolderBase]: 77/991 cut-off events. [2024-11-19 06:07:40,950 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2024-11-19 06:07:40,954 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. [2024-11-19 06:07:40,955 INFO L82 GeneralOperation]: Start removeDead. Operand has 589 places, 590 transitions, 1656 flow [2024-11-19 06:07:40,957 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 183 transitions, 607 flow [2024-11-19 06:07:40,957 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:40,957 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:40,957 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-19 06:07:40,958 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:40,958 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:40,958 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:40,959 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:40,959 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:40,959 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)] === [2024-11-19 06:07:40,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:40,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1137340413, now seen corresponding path program 1 times [2024-11-19 06:07:40,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:40,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711477590] [2024-11-19 06:07:40,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:40,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:40,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:40,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:40,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711477590] [2024-11-19 06:07:40,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711477590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:40,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:40,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:40,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589348834] [2024-11-19 06:07:40,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:40,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:40,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:40,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:40,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:41,036 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 479 out of 590 [2024-11-19 06:07:41,037 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) [2024-11-19 06:07:41,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:41,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 479 of 590 [2024-11-19 06:07:41,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:41,155 INFO L124 PetriNetUnfolderBase]: 31/764 cut-off events. [2024-11-19 06:07:41,155 INFO L125 PetriNetUnfolderBase]: For 666/666 co-relation queries the response was YES. [2024-11-19 06:07:41,157 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. [2024-11-19 06:07:41,158 INFO L140 encePairwiseOnDemand]: 584/590 looper letters, 24 selfloop transitions, 2 changer transitions 1/179 dead transitions. [2024-11-19 06:07:41,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 179 transitions, 651 flow [2024-11-19 06:07:41,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:41,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:41,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1467 transitions. [2024-11-19 06:07:41,160 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8288135593220339 [2024-11-19 06:07:41,160 INFO L175 Difference]: Start difference. First operand has 210 places, 183 transitions, 607 flow. Second operand 3 states and 1467 transitions. [2024-11-19 06:07:41,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 179 transitions, 651 flow [2024-11-19 06:07:41,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 179 transitions, 494 flow, removed 78 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:41,163 INFO L231 Difference]: Finished difference. Result has 210 places, 178 transitions, 444 flow [2024-11-19 06:07:41,163 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} [2024-11-19 06:07:41,163 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, 0 predicate places. [2024-11-19 06:07:41,164 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 178 transitions, 444 flow [2024-11-19 06:07:41,164 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) [2024-11-19 06:07:41,164 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:41,164 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] [2024-11-19 06:07:41,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-19 06:07:41,164 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)] === [2024-11-19 06:07:41,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:41,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1873129722, now seen corresponding path program 1 times [2024-11-19 06:07:41,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:41,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810835957] [2024-11-19 06:07:41,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:41,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:41,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:41,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:41,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810835957] [2024-11-19 06:07:41,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810835957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:41,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:41,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:41,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774269600] [2024-11-19 06:07:41,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:41,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:41,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:41,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:41,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:41,225 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 590 [2024-11-19 06:07:41,226 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) [2024-11-19 06:07:41,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:41,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 590 [2024-11-19 06:07:41,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:41,296 INFO L124 PetriNetUnfolderBase]: 16/685 cut-off events. [2024-11-19 06:07:41,297 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2024-11-19 06:07:41,299 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. [2024-11-19 06:07:41,300 INFO L140 encePairwiseOnDemand]: 584/590 looper letters, 22 selfloop transitions, 1 changer transitions 24/173 dead transitions. [2024-11-19 06:07:41,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 173 transitions, 484 flow [2024-11-19 06:07:41,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:41,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:41,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1377 transitions. [2024-11-19 06:07:41,302 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7779661016949152 [2024-11-19 06:07:41,302 INFO L175 Difference]: Start difference. First operand has 210 places, 178 transitions, 444 flow. Second operand 3 states and 1377 transitions. [2024-11-19 06:07:41,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 173 transitions, 484 flow [2024-11-19 06:07:41,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 173 transitions, 480 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:41,304 INFO L231 Difference]: Finished difference. Result has 204 places, 149 transitions, 382 flow [2024-11-19 06:07:41,304 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} [2024-11-19 06:07:41,305 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -6 predicate places. [2024-11-19 06:07:41,305 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 149 transitions, 382 flow [2024-11-19 06:07:41,305 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) [2024-11-19 06:07:41,305 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:41,305 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] [2024-11-19 06:07:41,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-19 06:07:41,305 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)] === [2024-11-19 06:07:41,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:41,306 INFO L85 PathProgramCache]: Analyzing trace with hash 193056495, now seen corresponding path program 1 times [2024-11-19 06:07:41,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:41,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449196069] [2024-11-19 06:07:41,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:41,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:41,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1386 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 1344 trivial. 0 not checked. [2024-11-19 06:07:41,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:41,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449196069] [2024-11-19 06:07:41,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449196069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:41,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:41,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:41,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157673845] [2024-11-19 06:07:41,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:41,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:41,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:41,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:41,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:41,450 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 491 out of 590 [2024-11-19 06:07:41,452 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) [2024-11-19 06:07:41,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:41,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 491 of 590 [2024-11-19 06:07:41,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:41,504 INFO L124 PetriNetUnfolderBase]: 0/338 cut-off events. [2024-11-19 06:07:41,504 INFO L125 PetriNetUnfolderBase]: For 131/131 co-relation queries the response was YES. [2024-11-19 06:07:41,504 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. [2024-11-19 06:07:41,505 INFO L140 encePairwiseOnDemand]: 585/590 looper letters, 22 selfloop transitions, 2 changer transitions 3/151 dead transitions. [2024-11-19 06:07:41,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 151 transitions, 440 flow [2024-11-19 06:07:41,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:41,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:41,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2483 transitions. [2024-11-19 06:07:41,506 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8416949152542373 [2024-11-19 06:07:41,506 INFO L175 Difference]: Start difference. First operand has 204 places, 149 transitions, 382 flow. Second operand 5 states and 2483 transitions. [2024-11-19 06:07:41,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 151 transitions, 440 flow [2024-11-19 06:07:41,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 151 transitions, 439 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:41,509 INFO L231 Difference]: Finished difference. Result has 184 places, 148 transitions, 387 flow [2024-11-19 06:07:41,509 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} [2024-11-19 06:07:41,509 INFO L277 CegarLoopForPetriNet]: 210 programPoint places, -26 predicate places. [2024-11-19 06:07:41,509 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 148 transitions, 387 flow [2024-11-19 06:07:41,510 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) [2024-11-19 06:07:41,510 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:41,510 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] [2024-11-19 06:07:41,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-19 06:07:41,510 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)] === [2024-11-19 06:07:41,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:41,511 INFO L85 PathProgramCache]: Analyzing trace with hash 614004328, now seen corresponding path program 1 times [2024-11-19 06:07:41,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:41,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823162793] [2024-11-19 06:07:41,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:41,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:41,532 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:41,574 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:41,574 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:41,574 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2024-11-19 06:07:41,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2024-11-19 06:07:41,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2024-11-19 06:07:41,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2024-11-19 06:07:41,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2024-11-19 06:07:41,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2024-11-19 06:07:41,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 22 remaining) [2024-11-19 06:07:41,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2024-11-19 06:07:41,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2024-11-19 06:07:41,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2024-11-19 06:07:41,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2024-11-19 06:07:41,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2024-11-19 06:07:41,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2024-11-19 06:07:41,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2024-11-19 06:07:41,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2024-11-19 06:07:41,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2024-11-19 06:07:41,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2024-11-19 06:07:41,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2024-11-19 06:07:41,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2024-11-19 06:07:41,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2024-11-19 06:07:41,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2024-11-19 06:07:41,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2024-11-19 06:07:41,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-19 06:07:41,576 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:41,577 WARN L244 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:41,577 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2024-11-19 06:07:41,658 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:41,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 626 places, 627 transitions, 1794 flow [2024-11-19 06:07:41,789 INFO L124 PetriNetUnfolderBase]: 82/1055 cut-off events. [2024-11-19 06:07:41,790 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2024-11-19 06:07:41,795 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. [2024-11-19 06:07:41,795 INFO L82 GeneralOperation]: Start removeDead. Operand has 626 places, 627 transitions, 1794 flow [2024-11-19 06:07:41,798 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 219 places, 190 transitions, 653 flow [2024-11-19 06:07:41,798 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:41,799 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:41,799 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-19 06:07:41,800 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:41,800 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:41,800 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:41,800 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:41,800 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:41,800 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)] === [2024-11-19 06:07:41,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:41,801 INFO L85 PathProgramCache]: Analyzing trace with hash -340958461, now seen corresponding path program 1 times [2024-11-19 06:07:41,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:41,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832337168] [2024-11-19 06:07:41,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:41,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:41,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:41,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:41,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832337168] [2024-11-19 06:07:41,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832337168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:41,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:41,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:41,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659522340] [2024-11-19 06:07:41,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:41,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:41,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:41,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:41,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:41,892 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 509 out of 627 [2024-11-19 06:07:41,894 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) [2024-11-19 06:07:41,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:41,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 509 of 627 [2024-11-19 06:07:41,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:42,027 INFO L124 PetriNetUnfolderBase]: 33/813 cut-off events. [2024-11-19 06:07:42,027 INFO L125 PetriNetUnfolderBase]: For 801/801 co-relation queries the response was YES. [2024-11-19 06:07:42,031 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. [2024-11-19 06:07:42,033 INFO L140 encePairwiseOnDemand]: 621/627 looper letters, 25 selfloop transitions, 2 changer transitions 1/186 dead transitions. [2024-11-19 06:07:42,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 186 transitions, 699 flow [2024-11-19 06:07:42,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:42,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:42,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1558 transitions. [2024-11-19 06:07:42,035 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8282828282828283 [2024-11-19 06:07:42,035 INFO L175 Difference]: Start difference. First operand has 219 places, 190 transitions, 653 flow. Second operand 3 states and 1558 transitions. [2024-11-19 06:07:42,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 186 transitions, 699 flow [2024-11-19 06:07:42,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 186 transitions, 516 flow, removed 91 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:42,039 INFO L231 Difference]: Finished difference. Result has 219 places, 185 transitions, 464 flow [2024-11-19 06:07:42,039 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} [2024-11-19 06:07:42,040 INFO L277 CegarLoopForPetriNet]: 219 programPoint places, 0 predicate places. [2024-11-19 06:07:42,040 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 185 transitions, 464 flow [2024-11-19 06:07:42,040 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) [2024-11-19 06:07:42,040 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:42,040 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] [2024-11-19 06:07:42,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-19 06:07:42,041 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)] === [2024-11-19 06:07:42,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:42,041 INFO L85 PathProgramCache]: Analyzing trace with hash -891869498, now seen corresponding path program 1 times [2024-11-19 06:07:42,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:42,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947798952] [2024-11-19 06:07:42,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:42,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:42,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:42,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:42,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947798952] [2024-11-19 06:07:42,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947798952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:42,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:42,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:42,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720147223] [2024-11-19 06:07:42,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:42,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:42,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:42,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:42,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:42,102 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 627 [2024-11-19 06:07:42,103 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) [2024-11-19 06:07:42,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:42,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 627 [2024-11-19 06:07:42,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:42,226 INFO L124 PetriNetUnfolderBase]: 17/729 cut-off events. [2024-11-19 06:07:42,227 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2024-11-19 06:07:42,230 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. [2024-11-19 06:07:42,231 INFO L140 encePairwiseOnDemand]: 621/627 looper letters, 23 selfloop transitions, 1 changer transitions 24/180 dead transitions. [2024-11-19 06:07:42,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 180 transitions, 506 flow [2024-11-19 06:07:42,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:42,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:42,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1462 transitions. [2024-11-19 06:07:42,233 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7772461456671983 [2024-11-19 06:07:42,233 INFO L175 Difference]: Start difference. First operand has 219 places, 185 transitions, 464 flow. Second operand 3 states and 1462 transitions. [2024-11-19 06:07:42,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 180 transitions, 506 flow [2024-11-19 06:07:42,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 180 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:42,236 INFO L231 Difference]: Finished difference. Result has 213 places, 156 transitions, 402 flow [2024-11-19 06:07:42,236 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} [2024-11-19 06:07:42,237 INFO L277 CegarLoopForPetriNet]: 219 programPoint places, -6 predicate places. [2024-11-19 06:07:42,237 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 156 transitions, 402 flow [2024-11-19 06:07:42,237 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) [2024-11-19 06:07:42,237 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:42,237 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] [2024-11-19 06:07:42,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-19 06:07:42,238 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)] === [2024-11-19 06:07:42,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:42,238 INFO L85 PathProgramCache]: Analyzing trace with hash 587678559, now seen corresponding path program 1 times [2024-11-19 06:07:42,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:42,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457880462] [2024-11-19 06:07:42,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:42,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:42,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1590 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 1545 trivial. 0 not checked. [2024-11-19 06:07:42,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:42,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457880462] [2024-11-19 06:07:42,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457880462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:42,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:42,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:42,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580576859] [2024-11-19 06:07:42,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:42,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:42,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:42,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:42,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:42,373 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 522 out of 627 [2024-11-19 06:07:42,374 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) [2024-11-19 06:07:42,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:42,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 522 of 627 [2024-11-19 06:07:42,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:42,438 INFO L124 PetriNetUnfolderBase]: 0/358 cut-off events. [2024-11-19 06:07:42,438 INFO L125 PetriNetUnfolderBase]: For 148/148 co-relation queries the response was YES. [2024-11-19 06:07:42,439 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. [2024-11-19 06:07:42,439 INFO L140 encePairwiseOnDemand]: 622/627 looper letters, 23 selfloop transitions, 2 changer transitions 3/158 dead transitions. [2024-11-19 06:07:42,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 158 transitions, 462 flow [2024-11-19 06:07:42,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:42,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:42,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2639 transitions. [2024-11-19 06:07:42,441 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8417862838915471 [2024-11-19 06:07:42,441 INFO L175 Difference]: Start difference. First operand has 213 places, 156 transitions, 402 flow. Second operand 5 states and 2639 transitions. [2024-11-19 06:07:42,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 158 transitions, 462 flow [2024-11-19 06:07:42,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 158 transitions, 461 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:42,443 INFO L231 Difference]: Finished difference. Result has 193 places, 155 transitions, 407 flow [2024-11-19 06:07:42,443 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} [2024-11-19 06:07:42,444 INFO L277 CegarLoopForPetriNet]: 219 programPoint places, -26 predicate places. [2024-11-19 06:07:42,444 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 155 transitions, 407 flow [2024-11-19 06:07:42,444 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) [2024-11-19 06:07:42,444 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:42,444 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] [2024-11-19 06:07:42,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-19 06:07:42,445 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)] === [2024-11-19 06:07:42,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:42,445 INFO L85 PathProgramCache]: Analyzing trace with hash 62735141, now seen corresponding path program 1 times [2024-11-19 06:07:42,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:42,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362695598] [2024-11-19 06:07:42,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:42,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:42,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:42,488 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:42,532 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:42,532 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:42,532 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-19 06:07:42,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-19 06:07:42,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-19 06:07:42,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-19 06:07:42,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-19 06:07:42,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-19 06:07:42,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 23 remaining) [2024-11-19 06:07:42,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-19 06:07:42,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-19 06:07:42,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-19 06:07:42,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-19 06:07:42,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-19 06:07:42,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-19 06:07:42,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-19 06:07:42,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-19 06:07:42,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-19 06:07:42,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-19 06:07:42,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-19 06:07:42,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-19 06:07:42,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-19 06:07:42,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-19 06:07:42,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-19 06:07:42,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-19 06:07:42,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-11-19 06:07:42,533 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:42,534 WARN L244 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:42,534 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2024-11-19 06:07:42,599 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:42,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 663 places, 664 transitions, 1936 flow [2024-11-19 06:07:42,702 INFO L124 PetriNetUnfolderBase]: 87/1119 cut-off events. [2024-11-19 06:07:42,702 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2024-11-19 06:07:42,709 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. [2024-11-19 06:07:42,709 INFO L82 GeneralOperation]: Start removeDead. Operand has 663 places, 664 transitions, 1936 flow [2024-11-19 06:07:42,711 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 197 transitions, 701 flow [2024-11-19 06:07:42,711 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:42,712 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:42,712 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-19 06:07:42,713 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:42,713 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:42,713 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:42,713 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:42,713 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:42,713 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)] === [2024-11-19 06:07:42,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:42,713 INFO L85 PathProgramCache]: Analyzing trace with hash 406518531, now seen corresponding path program 1 times [2024-11-19 06:07:42,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:42,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41200659] [2024-11-19 06:07:42,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:42,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:42,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:42,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:42,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:42,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41200659] [2024-11-19 06:07:42,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41200659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:42,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:42,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:42,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901790858] [2024-11-19 06:07:42,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:42,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:42,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:42,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:42,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:42,797 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 539 out of 664 [2024-11-19 06:07:42,798 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) [2024-11-19 06:07:42,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:42,798 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 539 of 664 [2024-11-19 06:07:42,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:42,904 INFO L124 PetriNetUnfolderBase]: 35/862 cut-off events. [2024-11-19 06:07:42,904 INFO L125 PetriNetUnfolderBase]: For 953/953 co-relation queries the response was YES. [2024-11-19 06:07:42,908 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. [2024-11-19 06:07:42,910 INFO L140 encePairwiseOnDemand]: 658/664 looper letters, 26 selfloop transitions, 2 changer transitions 1/193 dead transitions. [2024-11-19 06:07:42,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 193 transitions, 749 flow [2024-11-19 06:07:42,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:42,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:42,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1649 transitions. [2024-11-19 06:07:42,912 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8278112449799196 [2024-11-19 06:07:42,912 INFO L175 Difference]: Start difference. First operand has 228 places, 197 transitions, 701 flow. Second operand 3 states and 1649 transitions. [2024-11-19 06:07:42,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 193 transitions, 749 flow [2024-11-19 06:07:42,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 193 transitions, 538 flow, removed 105 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:42,916 INFO L231 Difference]: Finished difference. Result has 228 places, 192 transitions, 484 flow [2024-11-19 06:07:42,916 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} [2024-11-19 06:07:42,917 INFO L277 CegarLoopForPetriNet]: 228 programPoint places, 0 predicate places. [2024-11-19 06:07:42,917 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 192 transitions, 484 flow [2024-11-19 06:07:42,917 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) [2024-11-19 06:07:42,917 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:42,917 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] [2024-11-19 06:07:42,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-11-19 06:07:42,918 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)] === [2024-11-19 06:07:42,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:42,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1209050310, now seen corresponding path program 1 times [2024-11-19 06:07:42,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:42,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586177626] [2024-11-19 06:07:42,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:42,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:42,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:42,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:42,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586177626] [2024-11-19 06:07:42,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586177626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:42,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:42,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:42,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428970276] [2024-11-19 06:07:42,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:42,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:42,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:42,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:42,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:42,987 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 505 out of 664 [2024-11-19 06:07:42,988 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) [2024-11-19 06:07:42,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:42,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 505 of 664 [2024-11-19 06:07:42,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:43,075 INFO L124 PetriNetUnfolderBase]: 18/773 cut-off events. [2024-11-19 06:07:43,075 INFO L125 PetriNetUnfolderBase]: For 167/167 co-relation queries the response was YES. [2024-11-19 06:07:43,078 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. [2024-11-19 06:07:43,079 INFO L140 encePairwiseOnDemand]: 658/664 looper letters, 24 selfloop transitions, 1 changer transitions 24/187 dead transitions. [2024-11-19 06:07:43,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 187 transitions, 528 flow [2024-11-19 06:07:43,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:43,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:43,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1547 transitions. [2024-11-19 06:07:43,081 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7766064257028112 [2024-11-19 06:07:43,081 INFO L175 Difference]: Start difference. First operand has 228 places, 192 transitions, 484 flow. Second operand 3 states and 1547 transitions. [2024-11-19 06:07:43,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 187 transitions, 528 flow [2024-11-19 06:07:43,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 187 transitions, 524 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:43,083 INFO L231 Difference]: Finished difference. Result has 222 places, 163 transitions, 422 flow [2024-11-19 06:07:43,083 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} [2024-11-19 06:07:43,084 INFO L277 CegarLoopForPetriNet]: 228 programPoint places, -6 predicate places. [2024-11-19 06:07:43,084 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 163 transitions, 422 flow [2024-11-19 06:07:43,084 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) [2024-11-19 06:07:43,084 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:43,084 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] [2024-11-19 06:07:43,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-11-19 06:07:43,084 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)] === [2024-11-19 06:07:43,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:43,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1675164677, now seen corresponding path program 1 times [2024-11-19 06:07:43,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:43,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113463458] [2024-11-19 06:07:43,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:43,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:43,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:43,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1808 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1760 trivial. 0 not checked. [2024-11-19 06:07:43,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:43,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113463458] [2024-11-19 06:07:43,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113463458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:43,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:43,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:43,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46857498] [2024-11-19 06:07:43,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:43,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:43,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:43,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:43,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:43,231 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 553 out of 664 [2024-11-19 06:07:43,232 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) [2024-11-19 06:07:43,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:43,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 553 of 664 [2024-11-19 06:07:43,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:43,341 INFO L124 PetriNetUnfolderBase]: 0/378 cut-off events. [2024-11-19 06:07:43,341 INFO L125 PetriNetUnfolderBase]: For 166/166 co-relation queries the response was YES. [2024-11-19 06:07:43,342 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. [2024-11-19 06:07:43,342 INFO L140 encePairwiseOnDemand]: 659/664 looper letters, 24 selfloop transitions, 2 changer transitions 3/165 dead transitions. [2024-11-19 06:07:43,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 165 transitions, 484 flow [2024-11-19 06:07:43,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:43,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:43,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2795 transitions. [2024-11-19 06:07:43,344 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8418674698795181 [2024-11-19 06:07:43,344 INFO L175 Difference]: Start difference. First operand has 222 places, 163 transitions, 422 flow. Second operand 5 states and 2795 transitions. [2024-11-19 06:07:43,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 165 transitions, 484 flow [2024-11-19 06:07:43,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 165 transitions, 483 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:43,346 INFO L231 Difference]: Finished difference. Result has 202 places, 162 transitions, 427 flow [2024-11-19 06:07:43,347 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} [2024-11-19 06:07:43,347 INFO L277 CegarLoopForPetriNet]: 228 programPoint places, -26 predicate places. [2024-11-19 06:07:43,347 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 162 transitions, 427 flow [2024-11-19 06:07:43,348 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) [2024-11-19 06:07:43,348 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:43,348 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] [2024-11-19 06:07:43,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-11-19 06:07:43,348 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)] === [2024-11-19 06:07:43,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:43,348 INFO L85 PathProgramCache]: Analyzing trace with hash 752610473, now seen corresponding path program 1 times [2024-11-19 06:07:43,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:43,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160970481] [2024-11-19 06:07:43,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:43,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:43,374 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:43,428 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:43,428 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:43,429 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2024-11-19 06:07:43,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2024-11-19 06:07:43,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2024-11-19 06:07:43,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2024-11-19 06:07:43,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2024-11-19 06:07:43,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2024-11-19 06:07:43,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 24 remaining) [2024-11-19 06:07:43,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2024-11-19 06:07:43,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2024-11-19 06:07:43,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2024-11-19 06:07:43,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2024-11-19 06:07:43,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2024-11-19 06:07:43,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2024-11-19 06:07:43,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2024-11-19 06:07:43,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2024-11-19 06:07:43,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2024-11-19 06:07:43,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2024-11-19 06:07:43,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2024-11-19 06:07:43,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2024-11-19 06:07:43,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2024-11-19 06:07:43,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2024-11-19 06:07:43,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2024-11-19 06:07:43,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2024-11-19 06:07:43,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2024-11-19 06:07:43,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-11-19 06:07:43,431 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:43,431 WARN L244 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:43,431 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2024-11-19 06:07:43,498 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:43,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 700 places, 701 transitions, 2082 flow [2024-11-19 06:07:43,609 INFO L124 PetriNetUnfolderBase]: 92/1183 cut-off events. [2024-11-19 06:07:43,609 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2024-11-19 06:07:43,616 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. [2024-11-19 06:07:43,616 INFO L82 GeneralOperation]: Start removeDead. Operand has 700 places, 701 transitions, 2082 flow [2024-11-19 06:07:43,618 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 237 places, 204 transitions, 751 flow [2024-11-19 06:07:43,619 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:43,619 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:43,619 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-19 06:07:43,620 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:43,620 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:43,620 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:43,620 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:43,620 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:43,620 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)] === [2024-11-19 06:07:43,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:43,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1105090563, now seen corresponding path program 1 times [2024-11-19 06:07:43,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:43,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912790229] [2024-11-19 06:07:43,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:43,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:43,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:43,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:43,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912790229] [2024-11-19 06:07:43,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912790229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:43,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:43,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:43,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173250311] [2024-11-19 06:07:43,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:43,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:43,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:43,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:43,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:43,698 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 569 out of 701 [2024-11-19 06:07:43,699 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) [2024-11-19 06:07:43,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:43,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 569 of 701 [2024-11-19 06:07:43,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:43,806 INFO L124 PetriNetUnfolderBase]: 37/911 cut-off events. [2024-11-19 06:07:43,806 INFO L125 PetriNetUnfolderBase]: For 1123/1123 co-relation queries the response was YES. [2024-11-19 06:07:43,811 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. [2024-11-19 06:07:43,813 INFO L140 encePairwiseOnDemand]: 695/701 looper letters, 27 selfloop transitions, 2 changer transitions 1/200 dead transitions. [2024-11-19 06:07:43,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 200 transitions, 801 flow [2024-11-19 06:07:43,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:43,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:43,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1740 transitions. [2024-11-19 06:07:43,815 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8273894436519258 [2024-11-19 06:07:43,815 INFO L175 Difference]: Start difference. First operand has 237 places, 204 transitions, 751 flow. Second operand 3 states and 1740 transitions. [2024-11-19 06:07:43,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 200 transitions, 801 flow [2024-11-19 06:07:43,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 200 transitions, 560 flow, removed 120 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:43,819 INFO L231 Difference]: Finished difference. Result has 237 places, 199 transitions, 504 flow [2024-11-19 06:07:43,819 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} [2024-11-19 06:07:43,819 INFO L277 CegarLoopForPetriNet]: 237 programPoint places, 0 predicate places. [2024-11-19 06:07:43,819 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 199 transitions, 504 flow [2024-11-19 06:07:43,820 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) [2024-11-19 06:07:43,820 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:43,820 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] [2024-11-19 06:07:43,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-11-19 06:07:43,820 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)] === [2024-11-19 06:07:43,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:43,820 INFO L85 PathProgramCache]: Analyzing trace with hash 134662406, now seen corresponding path program 1 times [2024-11-19 06:07:43,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:43,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495934504] [2024-11-19 06:07:43,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:43,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:43,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:43,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:43,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495934504] [2024-11-19 06:07:43,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495934504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:43,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:43,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:43,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020629001] [2024-11-19 06:07:43,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:43,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:43,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:43,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:43,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:43,893 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 533 out of 701 [2024-11-19 06:07:43,894 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) [2024-11-19 06:07:43,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:43,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 533 of 701 [2024-11-19 06:07:43,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:43,984 INFO L124 PetriNetUnfolderBase]: 19/817 cut-off events. [2024-11-19 06:07:43,985 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2024-11-19 06:07:43,988 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. [2024-11-19 06:07:43,989 INFO L140 encePairwiseOnDemand]: 695/701 looper letters, 25 selfloop transitions, 1 changer transitions 24/194 dead transitions. [2024-11-19 06:07:43,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 194 transitions, 550 flow [2024-11-19 06:07:43,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:43,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:43,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1632 transitions. [2024-11-19 06:07:43,990 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.776034236804565 [2024-11-19 06:07:43,990 INFO L175 Difference]: Start difference. First operand has 237 places, 199 transitions, 504 flow. Second operand 3 states and 1632 transitions. [2024-11-19 06:07:43,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 194 transitions, 550 flow [2024-11-19 06:07:43,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 194 transitions, 546 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:43,993 INFO L231 Difference]: Finished difference. Result has 231 places, 170 transitions, 442 flow [2024-11-19 06:07:43,993 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} [2024-11-19 06:07:43,993 INFO L277 CegarLoopForPetriNet]: 237 programPoint places, -6 predicate places. [2024-11-19 06:07:43,993 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 170 transitions, 442 flow [2024-11-19 06:07:43,994 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) [2024-11-19 06:07:43,994 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:43,994 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] [2024-11-19 06:07:43,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-11-19 06:07:43,994 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)] === [2024-11-19 06:07:43,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:43,994 INFO L85 PathProgramCache]: Analyzing trace with hash 110555683, now seen corresponding path program 1 times [2024-11-19 06:07:43,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:43,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737854251] [2024-11-19 06:07:43,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:43,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:44,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2040 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 1989 trivial. 0 not checked. [2024-11-19 06:07:44,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:44,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737854251] [2024-11-19 06:07:44,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737854251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:44,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:44,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:44,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610205300] [2024-11-19 06:07:44,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:44,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:44,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:44,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:44,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:44,170 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 584 out of 701 [2024-11-19 06:07:44,172 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) [2024-11-19 06:07:44,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:44,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 584 of 701 [2024-11-19 06:07:44,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:44,247 INFO L124 PetriNetUnfolderBase]: 0/398 cut-off events. [2024-11-19 06:07:44,247 INFO L125 PetriNetUnfolderBase]: For 185/185 co-relation queries the response was YES. [2024-11-19 06:07:44,247 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. [2024-11-19 06:07:44,248 INFO L140 encePairwiseOnDemand]: 696/701 looper letters, 25 selfloop transitions, 2 changer transitions 3/172 dead transitions. [2024-11-19 06:07:44,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 172 transitions, 506 flow [2024-11-19 06:07:44,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:44,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:44,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2951 transitions. [2024-11-19 06:07:44,251 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8419400855920114 [2024-11-19 06:07:44,252 INFO L175 Difference]: Start difference. First operand has 231 places, 170 transitions, 442 flow. Second operand 5 states and 2951 transitions. [2024-11-19 06:07:44,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 172 transitions, 506 flow [2024-11-19 06:07:44,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 172 transitions, 505 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:44,256 INFO L231 Difference]: Finished difference. Result has 211 places, 169 transitions, 447 flow [2024-11-19 06:07:44,256 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} [2024-11-19 06:07:44,257 INFO L277 CegarLoopForPetriNet]: 237 programPoint places, -26 predicate places. [2024-11-19 06:07:44,257 INFO L471 AbstractCegarLoop]: Abstraction has has 211 places, 169 transitions, 447 flow [2024-11-19 06:07:44,257 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) [2024-11-19 06:07:44,257 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:44,257 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] [2024-11-19 06:07:44,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-11-19 06:07:44,258 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)] === [2024-11-19 06:07:44,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:44,258 INFO L85 PathProgramCache]: Analyzing trace with hash -750165356, now seen corresponding path program 1 times [2024-11-19 06:07:44,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:44,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312086205] [2024-11-19 06:07:44,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:44,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:44,282 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:44,348 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:44,348 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:44,348 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2024-11-19 06:07:44,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2024-11-19 06:07:44,348 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2024-11-19 06:07:44,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2024-11-19 06:07:44,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2024-11-19 06:07:44,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2024-11-19 06:07:44,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 25 remaining) [2024-11-19 06:07:44,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2024-11-19 06:07:44,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2024-11-19 06:07:44,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2024-11-19 06:07:44,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2024-11-19 06:07:44,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2024-11-19 06:07:44,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2024-11-19 06:07:44,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2024-11-19 06:07:44,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2024-11-19 06:07:44,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2024-11-19 06:07:44,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2024-11-19 06:07:44,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2024-11-19 06:07:44,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2024-11-19 06:07:44,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2024-11-19 06:07:44,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2024-11-19 06:07:44,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2024-11-19 06:07:44,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2024-11-19 06:07:44,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2024-11-19 06:07:44,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2024-11-19 06:07:44,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-11-19 06:07:44,351 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:44,352 WARN L244 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:44,352 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2024-11-19 06:07:44,416 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:44,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 737 places, 738 transitions, 2232 flow [2024-11-19 06:07:44,529 INFO L124 PetriNetUnfolderBase]: 97/1247 cut-off events. [2024-11-19 06:07:44,529 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2024-11-19 06:07:44,536 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. [2024-11-19 06:07:44,536 INFO L82 GeneralOperation]: Start removeDead. Operand has 737 places, 738 transitions, 2232 flow [2024-11-19 06:07:44,539 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 246 places, 211 transitions, 803 flow [2024-11-19 06:07:44,539 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:44,539 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:44,539 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-19 06:07:44,540 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:44,540 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:44,540 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:44,540 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:44,540 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:44,540 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)] === [2024-11-19 06:07:44,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:44,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1754757635, now seen corresponding path program 1 times [2024-11-19 06:07:44,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:44,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42316663] [2024-11-19 06:07:44,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:44,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:44,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:44,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:44,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:44,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42316663] [2024-11-19 06:07:44,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42316663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:44,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:44,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:44,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2216790] [2024-11-19 06:07:44,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:44,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:44,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:44,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:44,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:44,629 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 599 out of 738 [2024-11-19 06:07:44,630 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) [2024-11-19 06:07:44,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:44,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 599 of 738 [2024-11-19 06:07:44,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:44,750 INFO L124 PetriNetUnfolderBase]: 39/960 cut-off events. [2024-11-19 06:07:44,750 INFO L125 PetriNetUnfolderBase]: For 1312/1312 co-relation queries the response was YES. [2024-11-19 06:07:44,755 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. [2024-11-19 06:07:44,756 INFO L140 encePairwiseOnDemand]: 732/738 looper letters, 28 selfloop transitions, 2 changer transitions 1/207 dead transitions. [2024-11-19 06:07:44,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 207 transitions, 855 flow [2024-11-19 06:07:44,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:44,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:44,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1831 transitions. [2024-11-19 06:07:44,759 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8270099367660343 [2024-11-19 06:07:44,759 INFO L175 Difference]: Start difference. First operand has 246 places, 211 transitions, 803 flow. Second operand 3 states and 1831 transitions. [2024-11-19 06:07:44,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 207 transitions, 855 flow [2024-11-19 06:07:44,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 207 transitions, 582 flow, removed 136 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:44,763 INFO L231 Difference]: Finished difference. Result has 246 places, 206 transitions, 524 flow [2024-11-19 06:07:44,764 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} [2024-11-19 06:07:44,764 INFO L277 CegarLoopForPetriNet]: 246 programPoint places, 0 predicate places. [2024-11-19 06:07:44,764 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 206 transitions, 524 flow [2024-11-19 06:07:44,764 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) [2024-11-19 06:07:44,764 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:44,764 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] [2024-11-19 06:07:44,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-11-19 06:07:44,765 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)] === [2024-11-19 06:07:44,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:44,765 INFO L85 PathProgramCache]: Analyzing trace with hash 179934086, now seen corresponding path program 1 times [2024-11-19 06:07:44,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:44,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354745449] [2024-11-19 06:07:44,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:44,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:44,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:44,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:44,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354745449] [2024-11-19 06:07:44,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354745449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:44,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:44,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:44,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205748464] [2024-11-19 06:07:44,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:44,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:44,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:44,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:44,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:44,829 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 561 out of 738 [2024-11-19 06:07:44,830 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) [2024-11-19 06:07:44,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:44,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 561 of 738 [2024-11-19 06:07:44,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:45,020 INFO L124 PetriNetUnfolderBase]: 20/861 cut-off events. [2024-11-19 06:07:45,021 INFO L125 PetriNetUnfolderBase]: For 206/206 co-relation queries the response was YES. [2024-11-19 06:07:45,026 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. [2024-11-19 06:07:45,027 INFO L140 encePairwiseOnDemand]: 732/738 looper letters, 26 selfloop transitions, 1 changer transitions 24/201 dead transitions. [2024-11-19 06:07:45,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 201 transitions, 572 flow [2024-11-19 06:07:45,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:45,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:45,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1717 transitions. [2024-11-19 06:07:45,029 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7755194218608853 [2024-11-19 06:07:45,029 INFO L175 Difference]: Start difference. First operand has 246 places, 206 transitions, 524 flow. Second operand 3 states and 1717 transitions. [2024-11-19 06:07:45,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 201 transitions, 572 flow [2024-11-19 06:07:45,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 201 transitions, 568 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:45,032 INFO L231 Difference]: Finished difference. Result has 240 places, 177 transitions, 462 flow [2024-11-19 06:07:45,032 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} [2024-11-19 06:07:45,033 INFO L277 CegarLoopForPetriNet]: 246 programPoint places, -6 predicate places. [2024-11-19 06:07:45,033 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 177 transitions, 462 flow [2024-11-19 06:07:45,034 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) [2024-11-19 06:07:45,034 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:45,034 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] [2024-11-19 06:07:45,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-11-19 06:07:45,034 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)] === [2024-11-19 06:07:45,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:45,035 INFO L85 PathProgramCache]: Analyzing trace with hash 2101980983, now seen corresponding path program 1 times [2024-11-19 06:07:45,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:45,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247098957] [2024-11-19 06:07:45,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:45,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:45,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2286 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 2232 trivial. 0 not checked. [2024-11-19 06:07:45,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:45,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247098957] [2024-11-19 06:07:45,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247098957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:45,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:45,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:45,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686697776] [2024-11-19 06:07:45,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:45,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:45,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:45,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:45,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:45,226 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 615 out of 738 [2024-11-19 06:07:45,228 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) [2024-11-19 06:07:45,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:45,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 615 of 738 [2024-11-19 06:07:45,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:45,327 INFO L124 PetriNetUnfolderBase]: 0/418 cut-off events. [2024-11-19 06:07:45,328 INFO L125 PetriNetUnfolderBase]: For 205/205 co-relation queries the response was YES. [2024-11-19 06:07:45,328 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. [2024-11-19 06:07:45,328 INFO L140 encePairwiseOnDemand]: 733/738 looper letters, 26 selfloop transitions, 2 changer transitions 3/179 dead transitions. [2024-11-19 06:07:45,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 179 transitions, 528 flow [2024-11-19 06:07:45,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:45,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:45,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3107 transitions. [2024-11-19 06:07:45,331 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8420054200542005 [2024-11-19 06:07:45,331 INFO L175 Difference]: Start difference. First operand has 240 places, 177 transitions, 462 flow. Second operand 5 states and 3107 transitions. [2024-11-19 06:07:45,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 179 transitions, 528 flow [2024-11-19 06:07:45,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 179 transitions, 527 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:45,334 INFO L231 Difference]: Finished difference. Result has 220 places, 176 transitions, 467 flow [2024-11-19 06:07:45,334 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} [2024-11-19 06:07:45,335 INFO L277 CegarLoopForPetriNet]: 246 programPoint places, -26 predicate places. [2024-11-19 06:07:45,335 INFO L471 AbstractCegarLoop]: Abstraction has has 220 places, 176 transitions, 467 flow [2024-11-19 06:07:45,335 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) [2024-11-19 06:07:45,335 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:45,336 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] [2024-11-19 06:07:45,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-11-19 06:07:45,336 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)] === [2024-11-19 06:07:45,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:45,336 INFO L85 PathProgramCache]: Analyzing trace with hash 134411398, now seen corresponding path program 1 times [2024-11-19 06:07:45,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:45,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033619597] [2024-11-19 06:07:45,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:45,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:45,375 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:45,454 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:45,455 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:45,455 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-11-19 06:07:45,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-11-19 06:07:45,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2024-11-19 06:07:45,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-11-19 06:07:45,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-11-19 06:07:45,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-11-19 06:07:45,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 26 remaining) [2024-11-19 06:07:45,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2024-11-19 06:07:45,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-11-19 06:07:45,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-11-19 06:07:45,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2024-11-19 06:07:45,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-11-19 06:07:45,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-11-19 06:07:45,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-11-19 06:07:45,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-11-19 06:07:45,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-11-19 06:07:45,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-11-19 06:07:45,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-11-19 06:07:45,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-11-19 06:07:45,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-11-19 06:07:45,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-11-19 06:07:45,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-11-19 06:07:45,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-11-19 06:07:45,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-11-19 06:07:45,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-11-19 06:07:45,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-11-19 06:07:45,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2024-11-19 06:07:45,457 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:45,457 WARN L244 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:45,457 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2024-11-19 06:07:45,542 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:45,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 774 places, 775 transitions, 2386 flow [2024-11-19 06:07:45,684 INFO L124 PetriNetUnfolderBase]: 102/1311 cut-off events. [2024-11-19 06:07:45,685 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2024-11-19 06:07:45,694 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. [2024-11-19 06:07:45,694 INFO L82 GeneralOperation]: Start removeDead. Operand has 774 places, 775 transitions, 2386 flow [2024-11-19 06:07:45,697 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 255 places, 218 transitions, 857 flow [2024-11-19 06:07:45,697 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:45,697 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:45,697 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-11-19 06:07:45,698 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:45,698 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:45,698 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:45,698 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:45,698 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:45,698 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)] === [2024-11-19 06:07:45,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:45,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1939447549, now seen corresponding path program 1 times [2024-11-19 06:07:45,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:45,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633153751] [2024-11-19 06:07:45,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:45,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:45,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:45,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:45,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633153751] [2024-11-19 06:07:45,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633153751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:45,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:45,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:45,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738828077] [2024-11-19 06:07:45,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:45,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:45,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:45,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:45,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:45,795 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 629 out of 775 [2024-11-19 06:07:45,796 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) [2024-11-19 06:07:45,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:45,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 629 of 775 [2024-11-19 06:07:45,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:45,927 INFO L124 PetriNetUnfolderBase]: 41/1009 cut-off events. [2024-11-19 06:07:45,927 INFO L125 PetriNetUnfolderBase]: For 1521/1521 co-relation queries the response was YES. [2024-11-19 06:07:45,932 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. [2024-11-19 06:07:45,934 INFO L140 encePairwiseOnDemand]: 769/775 looper letters, 29 selfloop transitions, 2 changer transitions 1/214 dead transitions. [2024-11-19 06:07:45,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 214 transitions, 911 flow [2024-11-19 06:07:45,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:45,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:45,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1922 transitions. [2024-11-19 06:07:45,935 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8266666666666667 [2024-11-19 06:07:45,935 INFO L175 Difference]: Start difference. First operand has 255 places, 218 transitions, 857 flow. Second operand 3 states and 1922 transitions. [2024-11-19 06:07:45,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 214 transitions, 911 flow [2024-11-19 06:07:45,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 214 transitions, 604 flow, removed 153 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:45,939 INFO L231 Difference]: Finished difference. Result has 255 places, 213 transitions, 544 flow [2024-11-19 06:07:45,940 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} [2024-11-19 06:07:45,940 INFO L277 CegarLoopForPetriNet]: 255 programPoint places, 0 predicate places. [2024-11-19 06:07:45,940 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 213 transitions, 544 flow [2024-11-19 06:07:45,941 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) [2024-11-19 06:07:45,941 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:45,941 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] [2024-11-19 06:07:45,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2024-11-19 06:07:45,941 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)] === [2024-11-19 06:07:45,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:45,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1344865350, now seen corresponding path program 1 times [2024-11-19 06:07:45,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:45,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470176731] [2024-11-19 06:07:45,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:45,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:45,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:45,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:45,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470176731] [2024-11-19 06:07:45,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470176731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:45,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:45,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:45,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18868489] [2024-11-19 06:07:45,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:45,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:45,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:45,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:45,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:46,007 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 589 out of 775 [2024-11-19 06:07:46,007 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) [2024-11-19 06:07:46,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:46,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 589 of 775 [2024-11-19 06:07:46,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:46,153 INFO L124 PetriNetUnfolderBase]: 21/905 cut-off events. [2024-11-19 06:07:46,153 INFO L125 PetriNetUnfolderBase]: For 227/227 co-relation queries the response was YES. [2024-11-19 06:07:46,157 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. [2024-11-19 06:07:46,158 INFO L140 encePairwiseOnDemand]: 769/775 looper letters, 27 selfloop transitions, 1 changer transitions 24/208 dead transitions. [2024-11-19 06:07:46,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 208 transitions, 594 flow [2024-11-19 06:07:46,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:46,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:46,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1802 transitions. [2024-11-19 06:07:46,159 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7750537634408602 [2024-11-19 06:07:46,159 INFO L175 Difference]: Start difference. First operand has 255 places, 213 transitions, 544 flow. Second operand 3 states and 1802 transitions. [2024-11-19 06:07:46,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 208 transitions, 594 flow [2024-11-19 06:07:46,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 208 transitions, 590 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:46,162 INFO L231 Difference]: Finished difference. Result has 249 places, 184 transitions, 482 flow [2024-11-19 06:07:46,163 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} [2024-11-19 06:07:46,163 INFO L277 CegarLoopForPetriNet]: 255 programPoint places, -6 predicate places. [2024-11-19 06:07:46,163 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 184 transitions, 482 flow [2024-11-19 06:07:46,164 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) [2024-11-19 06:07:46,164 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:46,164 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] [2024-11-19 06:07:46,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2024-11-19 06:07:46,164 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)] === [2024-11-19 06:07:46,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:46,164 INFO L85 PathProgramCache]: Analyzing trace with hash -281895785, now seen corresponding path program 1 times [2024-11-19 06:07:46,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:46,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030346356] [2024-11-19 06:07:46,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:46,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:46,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2546 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 2489 trivial. 0 not checked. [2024-11-19 06:07:46,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:46,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030346356] [2024-11-19 06:07:46,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030346356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:46,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:46,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:46,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130919218] [2024-11-19 06:07:46,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:46,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:46,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:46,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:46,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:46,327 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 646 out of 775 [2024-11-19 06:07:46,328 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) [2024-11-19 06:07:46,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:46,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 646 of 775 [2024-11-19 06:07:46,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:46,408 INFO L124 PetriNetUnfolderBase]: 0/438 cut-off events. [2024-11-19 06:07:46,408 INFO L125 PetriNetUnfolderBase]: For 226/226 co-relation queries the response was YES. [2024-11-19 06:07:46,408 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. [2024-11-19 06:07:46,409 INFO L140 encePairwiseOnDemand]: 770/775 looper letters, 27 selfloop transitions, 2 changer transitions 3/186 dead transitions. [2024-11-19 06:07:46,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 186 transitions, 550 flow [2024-11-19 06:07:46,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:46,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:46,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3263 transitions. [2024-11-19 06:07:46,410 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8420645161290322 [2024-11-19 06:07:46,410 INFO L175 Difference]: Start difference. First operand has 249 places, 184 transitions, 482 flow. Second operand 5 states and 3263 transitions. [2024-11-19 06:07:46,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 186 transitions, 550 flow [2024-11-19 06:07:46,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 186 transitions, 549 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:46,413 INFO L231 Difference]: Finished difference. Result has 229 places, 183 transitions, 487 flow [2024-11-19 06:07:46,413 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} [2024-11-19 06:07:46,413 INFO L277 CegarLoopForPetriNet]: 255 programPoint places, -26 predicate places. [2024-11-19 06:07:46,413 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 183 transitions, 487 flow [2024-11-19 06:07:46,414 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) [2024-11-19 06:07:46,414 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:46,414 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] [2024-11-19 06:07:46,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2024-11-19 06:07:46,414 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)] === [2024-11-19 06:07:46,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:46,414 INFO L85 PathProgramCache]: Analyzing trace with hash -135605729, now seen corresponding path program 1 times [2024-11-19 06:07:46,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:46,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104121681] [2024-11-19 06:07:46,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:46,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:46,446 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:46,509 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:46,509 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:46,509 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 27 remaining) [2024-11-19 06:07:46,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2024-11-19 06:07:46,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2024-11-19 06:07:46,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2024-11-19 06:07:46,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2024-11-19 06:07:46,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2024-11-19 06:07:46,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 27 remaining) [2024-11-19 06:07:46,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2024-11-19 06:07:46,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2024-11-19 06:07:46,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2024-11-19 06:07:46,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2024-11-19 06:07:46,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2024-11-19 06:07:46,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2024-11-19 06:07:46,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2024-11-19 06:07:46,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2024-11-19 06:07:46,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2024-11-19 06:07:46,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 27 remaining) [2024-11-19 06:07:46,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 27 remaining) [2024-11-19 06:07:46,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2024-11-19 06:07:46,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2024-11-19 06:07:46,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2024-11-19 06:07:46,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2024-11-19 06:07:46,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2024-11-19 06:07:46,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2024-11-19 06:07:46,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2024-11-19 06:07:46,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2024-11-19 06:07:46,510 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2024-11-19 06:07:46,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2024-11-19 06:07:46,510 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:46,512 WARN L244 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:46,512 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2024-11-19 06:07:46,586 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:46,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 811 places, 812 transitions, 2544 flow [2024-11-19 06:07:46,731 INFO L124 PetriNetUnfolderBase]: 107/1375 cut-off events. [2024-11-19 06:07:46,731 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2024-11-19 06:07:46,742 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. [2024-11-19 06:07:46,742 INFO L82 GeneralOperation]: Start removeDead. Operand has 811 places, 812 transitions, 2544 flow [2024-11-19 06:07:46,745 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 264 places, 225 transitions, 913 flow [2024-11-19 06:07:46,746 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:46,746 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:46,746 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-19 06:07:46,747 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:46,747 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:46,747 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:46,747 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:46,747 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:46,747 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)] === [2024-11-19 06:07:46,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:46,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1387590397, now seen corresponding path program 1 times [2024-11-19 06:07:46,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:46,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579497765] [2024-11-19 06:07:46,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:46,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:46,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:46,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:46,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579497765] [2024-11-19 06:07:46,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579497765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:46,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:46,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:46,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482556070] [2024-11-19 06:07:46,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:46,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:46,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:46,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:46,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:46,848 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 659 out of 812 [2024-11-19 06:07:46,849 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) [2024-11-19 06:07:46,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:46,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 659 of 812 [2024-11-19 06:07:46,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:46,986 INFO L124 PetriNetUnfolderBase]: 43/1058 cut-off events. [2024-11-19 06:07:46,986 INFO L125 PetriNetUnfolderBase]: For 1751/1751 co-relation queries the response was YES. [2024-11-19 06:07:46,992 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. [2024-11-19 06:07:46,994 INFO L140 encePairwiseOnDemand]: 806/812 looper letters, 30 selfloop transitions, 2 changer transitions 1/221 dead transitions. [2024-11-19 06:07:46,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 221 transitions, 969 flow [2024-11-19 06:07:46,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:46,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:46,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2013 transitions. [2024-11-19 06:07:46,996 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8263546798029556 [2024-11-19 06:07:46,996 INFO L175 Difference]: Start difference. First operand has 264 places, 225 transitions, 913 flow. Second operand 3 states and 2013 transitions. [2024-11-19 06:07:46,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 221 transitions, 969 flow [2024-11-19 06:07:47,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 221 transitions, 626 flow, removed 171 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:47,001 INFO L231 Difference]: Finished difference. Result has 264 places, 220 transitions, 564 flow [2024-11-19 06:07:47,001 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} [2024-11-19 06:07:47,001 INFO L277 CegarLoopForPetriNet]: 264 programPoint places, 0 predicate places. [2024-11-19 06:07:47,002 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 220 transitions, 564 flow [2024-11-19 06:07:47,002 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) [2024-11-19 06:07:47,002 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:47,002 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:47,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2024-11-19 06:07:47,002 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)] === [2024-11-19 06:07:47,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:47,002 INFO L85 PathProgramCache]: Analyzing trace with hash -665511098, now seen corresponding path program 1 times [2024-11-19 06:07:47,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:47,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788589875] [2024-11-19 06:07:47,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:47,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:47,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:47,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:47,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:47,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788589875] [2024-11-19 06:07:47,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788589875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:47,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:47,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:47,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856410643] [2024-11-19 06:07:47,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:47,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:47,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:47,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:47,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:47,069 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 617 out of 812 [2024-11-19 06:07:47,070 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) [2024-11-19 06:07:47,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:47,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 617 of 812 [2024-11-19 06:07:47,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:47,220 INFO L124 PetriNetUnfolderBase]: 22/949 cut-off events. [2024-11-19 06:07:47,221 INFO L125 PetriNetUnfolderBase]: For 249/249 co-relation queries the response was YES. [2024-11-19 06:07:47,225 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. [2024-11-19 06:07:47,225 INFO L140 encePairwiseOnDemand]: 806/812 looper letters, 28 selfloop transitions, 1 changer transitions 24/215 dead transitions. [2024-11-19 06:07:47,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 215 transitions, 616 flow [2024-11-19 06:07:47,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:47,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:47,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1887 transitions. [2024-11-19 06:07:47,227 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7746305418719212 [2024-11-19 06:07:47,227 INFO L175 Difference]: Start difference. First operand has 264 places, 220 transitions, 564 flow. Second operand 3 states and 1887 transitions. [2024-11-19 06:07:47,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 215 transitions, 616 flow [2024-11-19 06:07:47,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 215 transitions, 612 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:47,230 INFO L231 Difference]: Finished difference. Result has 258 places, 191 transitions, 502 flow [2024-11-19 06:07:47,230 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} [2024-11-19 06:07:47,230 INFO L277 CegarLoopForPetriNet]: 264 programPoint places, -6 predicate places. [2024-11-19 06:07:47,231 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 191 transitions, 502 flow [2024-11-19 06:07:47,231 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) [2024-11-19 06:07:47,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:47,231 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] [2024-11-19 06:07:47,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2024-11-19 06:07:47,231 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)] === [2024-11-19 06:07:47,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:47,232 INFO L85 PathProgramCache]: Analyzing trace with hash -930489437, now seen corresponding path program 1 times [2024-11-19 06:07:47,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:47,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82883796] [2024-11-19 06:07:47,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:47,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:47,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:47,316 INFO L134 CoverageAnalysis]: Checked inductivity of 2820 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 2760 trivial. 0 not checked. [2024-11-19 06:07:47,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:47,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82883796] [2024-11-19 06:07:47,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82883796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:47,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:47,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:47,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932869861] [2024-11-19 06:07:47,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:47,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:47,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:47,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:47,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:47,381 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 677 out of 812 [2024-11-19 06:07:47,382 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) [2024-11-19 06:07:47,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:47,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 677 of 812 [2024-11-19 06:07:47,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:47,468 INFO L124 PetriNetUnfolderBase]: 0/458 cut-off events. [2024-11-19 06:07:47,469 INFO L125 PetriNetUnfolderBase]: For 248/248 co-relation queries the response was YES. [2024-11-19 06:07:47,469 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. [2024-11-19 06:07:47,470 INFO L140 encePairwiseOnDemand]: 807/812 looper letters, 28 selfloop transitions, 2 changer transitions 3/193 dead transitions. [2024-11-19 06:07:47,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 193 transitions, 572 flow [2024-11-19 06:07:47,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:47,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:47,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3419 transitions. [2024-11-19 06:07:47,472 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8421182266009852 [2024-11-19 06:07:47,472 INFO L175 Difference]: Start difference. First operand has 258 places, 191 transitions, 502 flow. Second operand 5 states and 3419 transitions. [2024-11-19 06:07:47,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 193 transitions, 572 flow [2024-11-19 06:07:47,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 193 transitions, 571 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:47,475 INFO L231 Difference]: Finished difference. Result has 238 places, 190 transitions, 507 flow [2024-11-19 06:07:47,475 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} [2024-11-19 06:07:47,475 INFO L277 CegarLoopForPetriNet]: 264 programPoint places, -26 predicate places. [2024-11-19 06:07:47,475 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 190 transitions, 507 flow [2024-11-19 06:07:47,476 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) [2024-11-19 06:07:47,476 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:47,476 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] [2024-11-19 06:07:47,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2024-11-19 06:07:47,476 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)] === [2024-11-19 06:07:47,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:47,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1065618175, now seen corresponding path program 1 times [2024-11-19 06:07:47,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:47,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272896658] [2024-11-19 06:07:47,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:47,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:47,503 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:47,550 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:47,550 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:47,550 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 28 remaining) [2024-11-19 06:07:47,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2024-11-19 06:07:47,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 28 remaining) [2024-11-19 06:07:47,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (24 of 28 remaining) [2024-11-19 06:07:47,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (23 of 28 remaining) [2024-11-19 06:07:47,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (22 of 28 remaining) [2024-11-19 06:07:47,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 28 remaining) [2024-11-19 06:07:47,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 28 remaining) [2024-11-19 06:07:47,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2024-11-19 06:07:47,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 28 remaining) [2024-11-19 06:07:47,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2024-11-19 06:07:47,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 28 remaining) [2024-11-19 06:07:47,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2024-11-19 06:07:47,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 28 remaining) [2024-11-19 06:07:47,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 28 remaining) [2024-11-19 06:07:47,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 28 remaining) [2024-11-19 06:07:47,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 28 remaining) [2024-11-19 06:07:47,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 28 remaining) [2024-11-19 06:07:47,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 28 remaining) [2024-11-19 06:07:47,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 28 remaining) [2024-11-19 06:07:47,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 28 remaining) [2024-11-19 06:07:47,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2024-11-19 06:07:47,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2024-11-19 06:07:47,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2024-11-19 06:07:47,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2024-11-19 06:07:47,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 28 remaining) [2024-11-19 06:07:47,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2024-11-19 06:07:47,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2024-11-19 06:07:47,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2024-11-19 06:07:47,552 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:47,553 WARN L244 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:47,553 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2024-11-19 06:07:47,625 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:47,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 848 places, 849 transitions, 2706 flow [2024-11-19 06:07:47,776 INFO L124 PetriNetUnfolderBase]: 112/1439 cut-off events. [2024-11-19 06:07:47,776 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2024-11-19 06:07:47,786 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. [2024-11-19 06:07:47,786 INFO L82 GeneralOperation]: Start removeDead. Operand has 848 places, 849 transitions, 2706 flow [2024-11-19 06:07:47,788 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 273 places, 232 transitions, 971 flow [2024-11-19 06:07:47,788 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:47,789 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:47,789 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-19 06:07:47,789 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:47,789 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:47,790 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:47,790 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:47,790 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:47,790 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)] === [2024-11-19 06:07:47,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:47,790 INFO L85 PathProgramCache]: Analyzing trace with hash -884638205, now seen corresponding path program 1 times [2024-11-19 06:07:47,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:47,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823547015] [2024-11-19 06:07:47,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:47,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:47,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:47,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:47,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:47,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823547015] [2024-11-19 06:07:47,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823547015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:47,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:47,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:47,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941212359] [2024-11-19 06:07:47,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:47,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:47,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:47,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:47,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:47,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 689 out of 849 [2024-11-19 06:07:47,875 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) [2024-11-19 06:07:47,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:47,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 689 of 849 [2024-11-19 06:07:47,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:48,014 INFO L124 PetriNetUnfolderBase]: 45/1107 cut-off events. [2024-11-19 06:07:48,015 INFO L125 PetriNetUnfolderBase]: For 2003/2003 co-relation queries the response was YES. [2024-11-19 06:07:48,021 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. [2024-11-19 06:07:48,022 INFO L140 encePairwiseOnDemand]: 843/849 looper letters, 31 selfloop transitions, 2 changer transitions 1/228 dead transitions. [2024-11-19 06:07:48,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 228 transitions, 1029 flow [2024-11-19 06:07:48,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:48,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:48,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2104 transitions. [2024-11-19 06:07:48,024 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8260698861405575 [2024-11-19 06:07:48,024 INFO L175 Difference]: Start difference. First operand has 273 places, 232 transitions, 971 flow. Second operand 3 states and 2104 transitions. [2024-11-19 06:07:48,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 228 transitions, 1029 flow [2024-11-19 06:07:48,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 228 transitions, 648 flow, removed 190 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:48,029 INFO L231 Difference]: Finished difference. Result has 273 places, 227 transitions, 584 flow [2024-11-19 06:07:48,029 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} [2024-11-19 06:07:48,030 INFO L277 CegarLoopForPetriNet]: 273 programPoint places, 0 predicate places. [2024-11-19 06:07:48,030 INFO L471 AbstractCegarLoop]: Abstraction has has 273 places, 227 transitions, 584 flow [2024-11-19 06:07:48,030 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) [2024-11-19 06:07:48,030 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:48,030 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] [2024-11-19 06:07:48,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2024-11-19 06:07:48,030 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)] === [2024-11-19 06:07:48,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:48,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1556227962, now seen corresponding path program 1 times [2024-11-19 06:07:48,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:48,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150736533] [2024-11-19 06:07:48,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:48,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:48,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:48,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:48,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150736533] [2024-11-19 06:07:48,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150736533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:48,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:48,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:48,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678867251] [2024-11-19 06:07:48,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:48,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:48,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:48,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:48,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:48,109 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 645 out of 849 [2024-11-19 06:07:48,109 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) [2024-11-19 06:07:48,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:48,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 645 of 849 [2024-11-19 06:07:48,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:48,263 INFO L124 PetriNetUnfolderBase]: 23/993 cut-off events. [2024-11-19 06:07:48,263 INFO L125 PetriNetUnfolderBase]: For 272/272 co-relation queries the response was YES. [2024-11-19 06:07:48,268 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. [2024-11-19 06:07:48,268 INFO L140 encePairwiseOnDemand]: 843/849 looper letters, 29 selfloop transitions, 1 changer transitions 24/222 dead transitions. [2024-11-19 06:07:48,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 222 transitions, 638 flow [2024-11-19 06:07:48,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:48,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:48,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1972 transitions. [2024-11-19 06:07:48,270 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7742442088731841 [2024-11-19 06:07:48,270 INFO L175 Difference]: Start difference. First operand has 273 places, 227 transitions, 584 flow. Second operand 3 states and 1972 transitions. [2024-11-19 06:07:48,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 222 transitions, 638 flow [2024-11-19 06:07:48,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 222 transitions, 634 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:48,275 INFO L231 Difference]: Finished difference. Result has 267 places, 198 transitions, 522 flow [2024-11-19 06:07:48,275 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} [2024-11-19 06:07:48,276 INFO L277 CegarLoopForPetriNet]: 273 programPoint places, -6 predicate places. [2024-11-19 06:07:48,276 INFO L471 AbstractCegarLoop]: Abstraction has has 267 places, 198 transitions, 522 flow [2024-11-19 06:07:48,276 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) [2024-11-19 06:07:48,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:48,276 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] [2024-11-19 06:07:48,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2024-11-19 06:07:48,276 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)] === [2024-11-19 06:07:48,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:48,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1668264517, now seen corresponding path program 1 times [2024-11-19 06:07:48,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:48,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511764483] [2024-11-19 06:07:48,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:48,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:48,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:48,358 INFO L134 CoverageAnalysis]: Checked inductivity of 3108 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 3045 trivial. 0 not checked. [2024-11-19 06:07:48,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:48,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511764483] [2024-11-19 06:07:48,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511764483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:48,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:48,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:48,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830187016] [2024-11-19 06:07:48,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:48,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:48,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:48,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:48,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:48,432 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 708 out of 849 [2024-11-19 06:07:48,433 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) [2024-11-19 06:07:48,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:48,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 708 of 849 [2024-11-19 06:07:48,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:48,508 INFO L124 PetriNetUnfolderBase]: 0/478 cut-off events. [2024-11-19 06:07:48,508 INFO L125 PetriNetUnfolderBase]: For 271/271 co-relation queries the response was YES. [2024-11-19 06:07:48,508 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. [2024-11-19 06:07:48,509 INFO L140 encePairwiseOnDemand]: 844/849 looper letters, 29 selfloop transitions, 2 changer transitions 3/200 dead transitions. [2024-11-19 06:07:48,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 200 transitions, 594 flow [2024-11-19 06:07:48,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:48,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:48,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3575 transitions. [2024-11-19 06:07:48,511 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8421672555948174 [2024-11-19 06:07:48,511 INFO L175 Difference]: Start difference. First operand has 267 places, 198 transitions, 522 flow. Second operand 5 states and 3575 transitions. [2024-11-19 06:07:48,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 200 transitions, 594 flow [2024-11-19 06:07:48,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 200 transitions, 593 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:48,513 INFO L231 Difference]: Finished difference. Result has 247 places, 197 transitions, 527 flow [2024-11-19 06:07:48,513 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} [2024-11-19 06:07:48,514 INFO L277 CegarLoopForPetriNet]: 273 programPoint places, -26 predicate places. [2024-11-19 06:07:48,514 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 197 transitions, 527 flow [2024-11-19 06:07:48,514 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) [2024-11-19 06:07:48,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:48,514 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] [2024-11-19 06:07:48,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2024-11-19 06:07:48,514 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)] === [2024-11-19 06:07:48,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:48,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1272017210, now seen corresponding path program 1 times [2024-11-19 06:07:48,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:48,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362700157] [2024-11-19 06:07:48,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:48,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:48,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:48,540 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:48,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:48,589 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:48,589 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:48,589 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2024-11-19 06:07:48,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2024-11-19 06:07:48,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2024-11-19 06:07:48,589 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2024-11-19 06:07:48,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2024-11-19 06:07:48,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2024-11-19 06:07:48,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 29 remaining) [2024-11-19 06:07:48,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2024-11-19 06:07:48,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2024-11-19 06:07:48,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2024-11-19 06:07:48,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2024-11-19 06:07:48,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2024-11-19 06:07:48,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2024-11-19 06:07:48,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2024-11-19 06:07:48,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2024-11-19 06:07:48,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2024-11-19 06:07:48,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2024-11-19 06:07:48,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 29 remaining) [2024-11-19 06:07:48,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 29 remaining) [2024-11-19 06:07:48,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2024-11-19 06:07:48,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2024-11-19 06:07:48,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2024-11-19 06:07:48,591 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2024-11-19 06:07:48,591 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2024-11-19 06:07:48,591 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2024-11-19 06:07:48,591 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2024-11-19 06:07:48,591 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2024-11-19 06:07:48,591 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2024-11-19 06:07:48,591 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2024-11-19 06:07:48,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2024-11-19 06:07:48,591 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:48,591 WARN L244 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:48,591 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2024-11-19 06:07:48,662 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:48,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 885 places, 886 transitions, 2872 flow [2024-11-19 06:07:48,826 INFO L124 PetriNetUnfolderBase]: 117/1503 cut-off events. [2024-11-19 06:07:48,826 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2024-11-19 06:07:48,839 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. [2024-11-19 06:07:48,839 INFO L82 GeneralOperation]: Start removeDead. Operand has 885 places, 886 transitions, 2872 flow [2024-11-19 06:07:48,842 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 282 places, 239 transitions, 1031 flow [2024-11-19 06:07:48,842 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:48,842 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:48,842 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-11-19 06:07:48,843 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:48,843 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:48,843 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:48,843 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:48,843 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:48,843 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)] === [2024-11-19 06:07:48,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:48,843 INFO L85 PathProgramCache]: Analyzing trace with hash -430590973, now seen corresponding path program 1 times [2024-11-19 06:07:48,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:48,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492701256] [2024-11-19 06:07:48,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:48,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:48,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:48,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:48,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:48,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492701256] [2024-11-19 06:07:48,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492701256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:48,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:48,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:48,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254438401] [2024-11-19 06:07:48,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:48,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:48,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:48,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:48,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:48,947 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 719 out of 886 [2024-11-19 06:07:48,947 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) [2024-11-19 06:07:48,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:48,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 719 of 886 [2024-11-19 06:07:48,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:49,189 INFO L124 PetriNetUnfolderBase]: 47/1156 cut-off events. [2024-11-19 06:07:49,189 INFO L125 PetriNetUnfolderBase]: For 2278/2278 co-relation queries the response was YES. [2024-11-19 06:07:49,196 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. [2024-11-19 06:07:49,198 INFO L140 encePairwiseOnDemand]: 880/886 looper letters, 32 selfloop transitions, 2 changer transitions 1/235 dead transitions. [2024-11-19 06:07:49,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 235 transitions, 1091 flow [2024-11-19 06:07:49,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:49,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:49,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2195 transitions. [2024-11-19 06:07:49,202 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.825808878856283 [2024-11-19 06:07:49,202 INFO L175 Difference]: Start difference. First operand has 282 places, 239 transitions, 1031 flow. Second operand 3 states and 2195 transitions. [2024-11-19 06:07:49,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 235 transitions, 1091 flow [2024-11-19 06:07:49,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 235 transitions, 670 flow, removed 210 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:49,208 INFO L231 Difference]: Finished difference. Result has 282 places, 234 transitions, 604 flow [2024-11-19 06:07:49,209 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} [2024-11-19 06:07:49,210 INFO L277 CegarLoopForPetriNet]: 282 programPoint places, 0 predicate places. [2024-11-19 06:07:49,210 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 234 transitions, 604 flow [2024-11-19 06:07:49,210 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) [2024-11-19 06:07:49,210 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:49,210 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] [2024-11-19 06:07:49,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2024-11-19 06:07:49,211 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)] === [2024-11-19 06:07:49,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:49,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1327285242, now seen corresponding path program 1 times [2024-11-19 06:07:49,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:49,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194415969] [2024-11-19 06:07:49,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:49,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:49,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:49,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:49,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194415969] [2024-11-19 06:07:49,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194415969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:49,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:49,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:49,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495623329] [2024-11-19 06:07:49,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:49,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:49,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:49,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:49,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:49,303 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 673 out of 886 [2024-11-19 06:07:49,304 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) [2024-11-19 06:07:49,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:49,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 673 of 886 [2024-11-19 06:07:49,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:49,518 INFO L124 PetriNetUnfolderBase]: 24/1037 cut-off events. [2024-11-19 06:07:49,519 INFO L125 PetriNetUnfolderBase]: For 296/296 co-relation queries the response was YES. [2024-11-19 06:07:49,526 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. [2024-11-19 06:07:49,527 INFO L140 encePairwiseOnDemand]: 880/886 looper letters, 30 selfloop transitions, 1 changer transitions 24/229 dead transitions. [2024-11-19 06:07:49,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 229 transitions, 660 flow [2024-11-19 06:07:49,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:49,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:49,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2057 transitions. [2024-11-19 06:07:49,530 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7738901429646351 [2024-11-19 06:07:49,530 INFO L175 Difference]: Start difference. First operand has 282 places, 234 transitions, 604 flow. Second operand 3 states and 2057 transitions. [2024-11-19 06:07:49,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 229 transitions, 660 flow [2024-11-19 06:07:49,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 229 transitions, 656 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:49,533 INFO L231 Difference]: Finished difference. Result has 276 places, 205 transitions, 542 flow [2024-11-19 06:07:49,533 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} [2024-11-19 06:07:49,534 INFO L277 CegarLoopForPetriNet]: 282 programPoint places, -6 predicate places. [2024-11-19 06:07:49,534 INFO L471 AbstractCegarLoop]: Abstraction has has 276 places, 205 transitions, 542 flow [2024-11-19 06:07:49,534 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) [2024-11-19 06:07:49,534 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:49,534 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] [2024-11-19 06:07:49,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2024-11-19 06:07:49,535 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)] === [2024-11-19 06:07:49,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:49,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1876137023, now seen corresponding path program 1 times [2024-11-19 06:07:49,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:49,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035925071] [2024-11-19 06:07:49,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:49,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:49,668 INFO L134 CoverageAnalysis]: Checked inductivity of 3410 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 3344 trivial. 0 not checked. [2024-11-19 06:07:49,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:49,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035925071] [2024-11-19 06:07:49,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035925071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:49,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:49,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:49,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947381359] [2024-11-19 06:07:49,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:49,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:49,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:49,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:49,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:49,755 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 739 out of 886 [2024-11-19 06:07:49,757 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) [2024-11-19 06:07:49,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:49,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 739 of 886 [2024-11-19 06:07:49,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:49,896 INFO L124 PetriNetUnfolderBase]: 0/498 cut-off events. [2024-11-19 06:07:49,896 INFO L125 PetriNetUnfolderBase]: For 295/295 co-relation queries the response was YES. [2024-11-19 06:07:49,896 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. [2024-11-19 06:07:49,897 INFO L140 encePairwiseOnDemand]: 881/886 looper letters, 30 selfloop transitions, 2 changer transitions 3/207 dead transitions. [2024-11-19 06:07:49,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 207 transitions, 616 flow [2024-11-19 06:07:49,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:49,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:49,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3731 transitions. [2024-11-19 06:07:49,900 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8422121896162528 [2024-11-19 06:07:49,900 INFO L175 Difference]: Start difference. First operand has 276 places, 205 transitions, 542 flow. Second operand 5 states and 3731 transitions. [2024-11-19 06:07:49,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 207 transitions, 616 flow [2024-11-19 06:07:49,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 207 transitions, 615 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:49,904 INFO L231 Difference]: Finished difference. Result has 256 places, 204 transitions, 547 flow [2024-11-19 06:07:49,904 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} [2024-11-19 06:07:49,904 INFO L277 CegarLoopForPetriNet]: 282 programPoint places, -26 predicate places. [2024-11-19 06:07:49,904 INFO L471 AbstractCegarLoop]: Abstraction has has 256 places, 204 transitions, 547 flow [2024-11-19 06:07:49,905 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) [2024-11-19 06:07:49,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:49,905 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] [2024-11-19 06:07:49,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2024-11-19 06:07:49,906 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)] === [2024-11-19 06:07:49,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:49,906 INFO L85 PathProgramCache]: Analyzing trace with hash 48442644, now seen corresponding path program 1 times [2024-11-19 06:07:49,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:49,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561811795] [2024-11-19 06:07:49,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:49,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:49,947 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:50,015 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:50,016 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:50,016 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 30 remaining) [2024-11-19 06:07:50,016 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 30 remaining) [2024-11-19 06:07:50,016 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 30 remaining) [2024-11-19 06:07:50,016 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (26 of 30 remaining) [2024-11-19 06:07:50,016 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (25 of 30 remaining) [2024-11-19 06:07:50,016 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (24 of 30 remaining) [2024-11-19 06:07:50,016 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 30 remaining) [2024-11-19 06:07:50,016 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 30 remaining) [2024-11-19 06:07:50,016 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 30 remaining) [2024-11-19 06:07:50,016 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 30 remaining) [2024-11-19 06:07:50,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 30 remaining) [2024-11-19 06:07:50,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 30 remaining) [2024-11-19 06:07:50,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 30 remaining) [2024-11-19 06:07:50,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 30 remaining) [2024-11-19 06:07:50,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 30 remaining) [2024-11-19 06:07:50,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 30 remaining) [2024-11-19 06:07:50,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 30 remaining) [2024-11-19 06:07:50,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 30 remaining) [2024-11-19 06:07:50,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 30 remaining) [2024-11-19 06:07:50,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 30 remaining) [2024-11-19 06:07:50,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 30 remaining) [2024-11-19 06:07:50,017 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 30 remaining) [2024-11-19 06:07:50,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 30 remaining) [2024-11-19 06:07:50,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 30 remaining) [2024-11-19 06:07:50,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 30 remaining) [2024-11-19 06:07:50,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 30 remaining) [2024-11-19 06:07:50,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 30 remaining) [2024-11-19 06:07:50,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 30 remaining) [2024-11-19 06:07:50,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 30 remaining) [2024-11-19 06:07:50,018 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 30 remaining) [2024-11-19 06:07:50,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2024-11-19 06:07:50,018 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:50,019 WARN L244 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:50,019 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2024-11-19 06:07:50,118 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:50,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 922 places, 923 transitions, 3042 flow [2024-11-19 06:07:50,334 INFO L124 PetriNetUnfolderBase]: 122/1567 cut-off events. [2024-11-19 06:07:50,334 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2024-11-19 06:07:50,348 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. [2024-11-19 06:07:50,348 INFO L82 GeneralOperation]: Start removeDead. Operand has 922 places, 923 transitions, 3042 flow [2024-11-19 06:07:50,351 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 291 places, 246 transitions, 1093 flow [2024-11-19 06:07:50,352 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:50,352 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:50,352 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-11-19 06:07:50,353 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:50,353 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:50,353 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:50,353 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:50,353 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:50,353 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)] === [2024-11-19 06:07:50,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:50,353 INFO L85 PathProgramCache]: Analyzing trace with hash -25448701, now seen corresponding path program 1 times [2024-11-19 06:07:50,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:50,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260626113] [2024-11-19 06:07:50,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:50,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:50,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:50,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:50,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260626113] [2024-11-19 06:07:50,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260626113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:50,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:50,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:50,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401879057] [2024-11-19 06:07:50,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:50,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:50,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:50,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:50,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:50,464 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 749 out of 923 [2024-11-19 06:07:50,465 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) [2024-11-19 06:07:50,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:50,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 749 of 923 [2024-11-19 06:07:50,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:50,656 INFO L124 PetriNetUnfolderBase]: 49/1205 cut-off events. [2024-11-19 06:07:50,656 INFO L125 PetriNetUnfolderBase]: For 2577/2577 co-relation queries the response was YES. [2024-11-19 06:07:50,667 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. [2024-11-19 06:07:50,669 INFO L140 encePairwiseOnDemand]: 917/923 looper letters, 33 selfloop transitions, 2 changer transitions 1/242 dead transitions. [2024-11-19 06:07:50,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 242 transitions, 1155 flow [2024-11-19 06:07:50,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:50,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:50,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2286 transitions. [2024-11-19 06:07:50,671 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8255687973997833 [2024-11-19 06:07:50,671 INFO L175 Difference]: Start difference. First operand has 291 places, 246 transitions, 1093 flow. Second operand 3 states and 2286 transitions. [2024-11-19 06:07:50,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 242 transitions, 1155 flow [2024-11-19 06:07:50,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 242 transitions, 692 flow, removed 231 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:50,677 INFO L231 Difference]: Finished difference. Result has 291 places, 241 transitions, 624 flow [2024-11-19 06:07:50,677 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} [2024-11-19 06:07:50,677 INFO L277 CegarLoopForPetriNet]: 291 programPoint places, 0 predicate places. [2024-11-19 06:07:50,677 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 241 transitions, 624 flow [2024-11-19 06:07:50,678 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) [2024-11-19 06:07:50,678 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:50,678 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] [2024-11-19 06:07:50,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2024-11-19 06:07:50,678 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)] === [2024-11-19 06:07:50,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:50,678 INFO L85 PathProgramCache]: Analyzing trace with hash 21317062, now seen corresponding path program 1 times [2024-11-19 06:07:50,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:50,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906255010] [2024-11-19 06:07:50,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:50,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:50,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:50,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:50,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:50,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906255010] [2024-11-19 06:07:50,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906255010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:50,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:50,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:50,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802220423] [2024-11-19 06:07:50,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:50,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:50,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:50,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:50,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:50,754 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 701 out of 923 [2024-11-19 06:07:50,755 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) [2024-11-19 06:07:50,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:50,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 701 of 923 [2024-11-19 06:07:50,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:50,979 INFO L124 PetriNetUnfolderBase]: 25/1081 cut-off events. [2024-11-19 06:07:50,979 INFO L125 PetriNetUnfolderBase]: For 321/321 co-relation queries the response was YES. [2024-11-19 06:07:50,983 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. [2024-11-19 06:07:50,984 INFO L140 encePairwiseOnDemand]: 917/923 looper letters, 31 selfloop transitions, 1 changer transitions 24/236 dead transitions. [2024-11-19 06:07:50,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 236 transitions, 682 flow [2024-11-19 06:07:50,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:50,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:50,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2142 transitions. [2024-11-19 06:07:50,985 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7735644637053087 [2024-11-19 06:07:50,985 INFO L175 Difference]: Start difference. First operand has 291 places, 241 transitions, 624 flow. Second operand 3 states and 2142 transitions. [2024-11-19 06:07:50,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 236 transitions, 682 flow [2024-11-19 06:07:50,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 236 transitions, 678 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:50,988 INFO L231 Difference]: Finished difference. Result has 285 places, 212 transitions, 562 flow [2024-11-19 06:07:50,988 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} [2024-11-19 06:07:50,988 INFO L277 CegarLoopForPetriNet]: 291 programPoint places, -6 predicate places. [2024-11-19 06:07:50,988 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 212 transitions, 562 flow [2024-11-19 06:07:50,989 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) [2024-11-19 06:07:50,989 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:50,989 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] [2024-11-19 06:07:50,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2024-11-19 06:07:50,989 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)] === [2024-11-19 06:07:50,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:50,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1123160207, now seen corresponding path program 1 times [2024-11-19 06:07:50,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:50,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430999906] [2024-11-19 06:07:50,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:50,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:51,072 INFO L134 CoverageAnalysis]: Checked inductivity of 3726 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 3657 trivial. 0 not checked. [2024-11-19 06:07:51,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:51,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430999906] [2024-11-19 06:07:51,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430999906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:51,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:51,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:51,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830285967] [2024-11-19 06:07:51,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:51,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:51,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:51,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:51,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:51,158 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 770 out of 923 [2024-11-19 06:07:51,160 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) [2024-11-19 06:07:51,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:51,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 770 of 923 [2024-11-19 06:07:51,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:51,261 INFO L124 PetriNetUnfolderBase]: 0/518 cut-off events. [2024-11-19 06:07:51,262 INFO L125 PetriNetUnfolderBase]: For 320/320 co-relation queries the response was YES. [2024-11-19 06:07:51,262 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. [2024-11-19 06:07:51,263 INFO L140 encePairwiseOnDemand]: 918/923 looper letters, 31 selfloop transitions, 2 changer transitions 3/214 dead transitions. [2024-11-19 06:07:51,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 214 transitions, 638 flow [2024-11-19 06:07:51,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:51,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:51,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3887 transitions. [2024-11-19 06:07:51,265 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8422535211267606 [2024-11-19 06:07:51,265 INFO L175 Difference]: Start difference. First operand has 285 places, 212 transitions, 562 flow. Second operand 5 states and 3887 transitions. [2024-11-19 06:07:51,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 214 transitions, 638 flow [2024-11-19 06:07:51,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 214 transitions, 637 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:51,268 INFO L231 Difference]: Finished difference. Result has 265 places, 211 transitions, 567 flow [2024-11-19 06:07:51,268 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} [2024-11-19 06:07:51,268 INFO L277 CegarLoopForPetriNet]: 291 programPoint places, -26 predicate places. [2024-11-19 06:07:51,268 INFO L471 AbstractCegarLoop]: Abstraction has has 265 places, 211 transitions, 567 flow [2024-11-19 06:07:51,269 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) [2024-11-19 06:07:51,269 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:51,269 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] [2024-11-19 06:07:51,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2024-11-19 06:07:51,269 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)] === [2024-11-19 06:07:51,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:51,270 INFO L85 PathProgramCache]: Analyzing trace with hash -2073062007, now seen corresponding path program 1 times [2024-11-19 06:07:51,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:51,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784819882] [2024-11-19 06:07:51,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:51,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:51,300 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:51,366 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:51,366 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:51,367 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-11-19 06:07:51,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2024-11-19 06:07:51,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2024-11-19 06:07:51,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2024-11-19 06:07:51,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2024-11-19 06:07:51,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2024-11-19 06:07:51,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 31 remaining) [2024-11-19 06:07:51,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2024-11-19 06:07:51,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2024-11-19 06:07:51,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2024-11-19 06:07:51,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2024-11-19 06:07:51,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2024-11-19 06:07:51,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2024-11-19 06:07:51,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2024-11-19 06:07:51,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2024-11-19 06:07:51,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2024-11-19 06:07:51,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2024-11-19 06:07:51,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2024-11-19 06:07:51,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2024-11-19 06:07:51,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2024-11-19 06:07:51,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2024-11-19 06:07:51,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2024-11-19 06:07:51,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2024-11-19 06:07:51,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2024-11-19 06:07:51,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2024-11-19 06:07:51,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2024-11-19 06:07:51,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2024-11-19 06:07:51,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2024-11-19 06:07:51,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2024-11-19 06:07:51,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2024-11-19 06:07:51,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2024-11-19 06:07:51,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2024-11-19 06:07:51,369 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:51,369 WARN L244 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:51,370 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2024-11-19 06:07:51,450 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:51,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 959 places, 960 transitions, 3216 flow [2024-11-19 06:07:51,646 INFO L124 PetriNetUnfolderBase]: 127/1631 cut-off events. [2024-11-19 06:07:51,647 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2024-11-19 06:07:51,661 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. [2024-11-19 06:07:51,661 INFO L82 GeneralOperation]: Start removeDead. Operand has 959 places, 960 transitions, 3216 flow [2024-11-19 06:07:51,664 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 300 places, 253 transitions, 1157 flow [2024-11-19 06:07:51,664 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:51,664 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:51,664 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-11-19 06:07:51,665 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:51,665 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:51,665 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:51,665 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:51,665 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:51,665 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)] === [2024-11-19 06:07:51,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:51,665 INFO L85 PathProgramCache]: Analyzing trace with hash 330788611, now seen corresponding path program 1 times [2024-11-19 06:07:51,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:51,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828254003] [2024-11-19 06:07:51,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:51,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:51,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:51,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:51,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:51,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828254003] [2024-11-19 06:07:51,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828254003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:51,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:51,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:51,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098794706] [2024-11-19 06:07:51,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:51,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:51,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:51,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:51,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:51,747 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 779 out of 960 [2024-11-19 06:07:51,748 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) [2024-11-19 06:07:51,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:51,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 779 of 960 [2024-11-19 06:07:51,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:51,928 INFO L124 PetriNetUnfolderBase]: 51/1254 cut-off events. [2024-11-19 06:07:51,929 INFO L125 PetriNetUnfolderBase]: For 2901/2901 co-relation queries the response was YES. [2024-11-19 06:07:51,939 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. [2024-11-19 06:07:51,941 INFO L140 encePairwiseOnDemand]: 954/960 looper letters, 34 selfloop transitions, 2 changer transitions 1/249 dead transitions. [2024-11-19 06:07:51,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 249 transitions, 1221 flow [2024-11-19 06:07:51,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:51,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:51,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2377 transitions. [2024-11-19 06:07:51,943 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8253472222222222 [2024-11-19 06:07:51,943 INFO L175 Difference]: Start difference. First operand has 300 places, 253 transitions, 1157 flow. Second operand 3 states and 2377 transitions. [2024-11-19 06:07:51,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 249 transitions, 1221 flow [2024-11-19 06:07:51,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 249 transitions, 714 flow, removed 253 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:51,950 INFO L231 Difference]: Finished difference. Result has 300 places, 248 transitions, 644 flow [2024-11-19 06:07:51,950 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} [2024-11-19 06:07:51,950 INFO L277 CegarLoopForPetriNet]: 300 programPoint places, 0 predicate places. [2024-11-19 06:07:51,950 INFO L471 AbstractCegarLoop]: Abstraction has has 300 places, 248 transitions, 644 flow [2024-11-19 06:07:51,951 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) [2024-11-19 06:07:51,951 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:51,951 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] [2024-11-19 06:07:51,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2024-11-19 06:07:51,951 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)] === [2024-11-19 06:07:51,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:51,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1805388346, now seen corresponding path program 1 times [2024-11-19 06:07:51,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:51,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017636684] [2024-11-19 06:07:51,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:51,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:51,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:51,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:51,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017636684] [2024-11-19 06:07:51,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017636684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:51,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:51,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:51,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246499123] [2024-11-19 06:07:51,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:51,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:51,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:51,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:51,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:52,027 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 729 out of 960 [2024-11-19 06:07:52,027 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) [2024-11-19 06:07:52,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:52,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 729 of 960 [2024-11-19 06:07:52,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:52,190 INFO L124 PetriNetUnfolderBase]: 26/1125 cut-off events. [2024-11-19 06:07:52,190 INFO L125 PetriNetUnfolderBase]: For 347/347 co-relation queries the response was YES. [2024-11-19 06:07:52,200 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. [2024-11-19 06:07:52,202 INFO L140 encePairwiseOnDemand]: 954/960 looper letters, 32 selfloop transitions, 1 changer transitions 24/243 dead transitions. [2024-11-19 06:07:52,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 243 transitions, 704 flow [2024-11-19 06:07:52,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:52,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:52,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2227 transitions. [2024-11-19 06:07:52,203 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7732638888888889 [2024-11-19 06:07:52,203 INFO L175 Difference]: Start difference. First operand has 300 places, 248 transitions, 644 flow. Second operand 3 states and 2227 transitions. [2024-11-19 06:07:52,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 243 transitions, 704 flow [2024-11-19 06:07:52,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 243 transitions, 700 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:52,206 INFO L231 Difference]: Finished difference. Result has 294 places, 219 transitions, 582 flow [2024-11-19 06:07:52,206 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} [2024-11-19 06:07:52,206 INFO L277 CegarLoopForPetriNet]: 300 programPoint places, -6 predicate places. [2024-11-19 06:07:52,206 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 219 transitions, 582 flow [2024-11-19 06:07:52,207 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) [2024-11-19 06:07:52,207 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:52,207 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] [2024-11-19 06:07:52,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2024-11-19 06:07:52,207 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)] === [2024-11-19 06:07:52,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:52,207 INFO L85 PathProgramCache]: Analyzing trace with hash 2111759371, now seen corresponding path program 1 times [2024-11-19 06:07:52,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:52,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402276852] [2024-11-19 06:07:52,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:52,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:52,378 INFO L134 CoverageAnalysis]: Checked inductivity of 4056 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 3984 trivial. 0 not checked. [2024-11-19 06:07:52,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:52,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402276852] [2024-11-19 06:07:52,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402276852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:52,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:52,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:52,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593885534] [2024-11-19 06:07:52,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:52,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:52,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:52,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:52,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:52,449 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 801 out of 960 [2024-11-19 06:07:52,450 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) [2024-11-19 06:07:52,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:52,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 801 of 960 [2024-11-19 06:07:52,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:52,572 INFO L124 PetriNetUnfolderBase]: 0/538 cut-off events. [2024-11-19 06:07:52,572 INFO L125 PetriNetUnfolderBase]: For 346/346 co-relation queries the response was YES. [2024-11-19 06:07:52,572 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. [2024-11-19 06:07:52,573 INFO L140 encePairwiseOnDemand]: 955/960 looper letters, 32 selfloop transitions, 2 changer transitions 3/221 dead transitions. [2024-11-19 06:07:52,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 221 transitions, 660 flow [2024-11-19 06:07:52,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:52,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:52,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4043 transitions. [2024-11-19 06:07:52,577 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8422916666666667 [2024-11-19 06:07:52,577 INFO L175 Difference]: Start difference. First operand has 294 places, 219 transitions, 582 flow. Second operand 5 states and 4043 transitions. [2024-11-19 06:07:52,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 221 transitions, 660 flow [2024-11-19 06:07:52,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 221 transitions, 659 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:52,580 INFO L231 Difference]: Finished difference. Result has 274 places, 218 transitions, 587 flow [2024-11-19 06:07:52,580 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} [2024-11-19 06:07:52,581 INFO L277 CegarLoopForPetriNet]: 300 programPoint places, -26 predicate places. [2024-11-19 06:07:52,581 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 218 transitions, 587 flow [2024-11-19 06:07:52,581 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) [2024-11-19 06:07:52,581 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:52,581 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] [2024-11-19 06:07:52,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2024-11-19 06:07:52,582 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)] === [2024-11-19 06:07:52,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:52,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1489872955, now seen corresponding path program 1 times [2024-11-19 06:07:52,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:52,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279195656] [2024-11-19 06:07:52,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:52,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:52,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:52,623 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:52,694 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:52,694 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:52,694 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 32 remaining) [2024-11-19 06:07:52,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (30 of 32 remaining) [2024-11-19 06:07:52,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (29 of 32 remaining) [2024-11-19 06:07:52,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (28 of 32 remaining) [2024-11-19 06:07:52,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (27 of 32 remaining) [2024-11-19 06:07:52,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (26 of 32 remaining) [2024-11-19 06:07:52,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 32 remaining) [2024-11-19 06:07:52,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 32 remaining) [2024-11-19 06:07:52,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 32 remaining) [2024-11-19 06:07:52,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 32 remaining) [2024-11-19 06:07:52,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 32 remaining) [2024-11-19 06:07:52,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 32 remaining) [2024-11-19 06:07:52,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 32 remaining) [2024-11-19 06:07:52,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 32 remaining) [2024-11-19 06:07:52,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 32 remaining) [2024-11-19 06:07:52,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 32 remaining) [2024-11-19 06:07:52,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 32 remaining) [2024-11-19 06:07:52,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 32 remaining) [2024-11-19 06:07:52,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 32 remaining) [2024-11-19 06:07:52,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 32 remaining) [2024-11-19 06:07:52,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 32 remaining) [2024-11-19 06:07:52,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 32 remaining) [2024-11-19 06:07:52,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 32 remaining) [2024-11-19 06:07:52,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 32 remaining) [2024-11-19 06:07:52,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 32 remaining) [2024-11-19 06:07:52,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 32 remaining) [2024-11-19 06:07:52,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 32 remaining) [2024-11-19 06:07:52,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 32 remaining) [2024-11-19 06:07:52,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 32 remaining) [2024-11-19 06:07:52,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 32 remaining) [2024-11-19 06:07:52,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 32 remaining) [2024-11-19 06:07:52,696 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 32 remaining) [2024-11-19 06:07:52,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2024-11-19 06:07:52,696 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:52,696 WARN L244 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:52,696 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2024-11-19 06:07:52,788 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:52,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 996 places, 997 transitions, 3394 flow [2024-11-19 06:07:53,026 INFO L124 PetriNetUnfolderBase]: 132/1695 cut-off events. [2024-11-19 06:07:53,026 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2024-11-19 06:07:53,052 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. [2024-11-19 06:07:53,052 INFO L82 GeneralOperation]: Start removeDead. Operand has 996 places, 997 transitions, 3394 flow [2024-11-19 06:07:53,057 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 309 places, 260 transitions, 1223 flow [2024-11-19 06:07:53,057 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:53,057 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:53,057 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-11-19 06:07:53,058 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:53,058 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:53,058 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:53,058 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:53,058 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:53,058 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)] === [2024-11-19 06:07:53,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:53,059 INFO L85 PathProgramCache]: Analyzing trace with hash 638120963, now seen corresponding path program 1 times [2024-11-19 06:07:53,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:53,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031266772] [2024-11-19 06:07:53,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:53,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:53,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:53,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:53,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031266772] [2024-11-19 06:07:53,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031266772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:53,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:53,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:53,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443077116] [2024-11-19 06:07:53,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:53,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:53,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:53,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:53,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:53,170 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 809 out of 997 [2024-11-19 06:07:53,171 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) [2024-11-19 06:07:53,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:53,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 809 of 997 [2024-11-19 06:07:53,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:53,369 INFO L124 PetriNetUnfolderBase]: 53/1303 cut-off events. [2024-11-19 06:07:53,369 INFO L125 PetriNetUnfolderBase]: For 3251/3251 co-relation queries the response was YES. [2024-11-19 06:07:53,379 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. [2024-11-19 06:07:53,382 INFO L140 encePairwiseOnDemand]: 991/997 looper letters, 35 selfloop transitions, 2 changer transitions 1/256 dead transitions. [2024-11-19 06:07:53,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 256 transitions, 1289 flow [2024-11-19 06:07:53,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:53,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:53,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2468 transitions. [2024-11-19 06:07:53,383 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8251420929455032 [2024-11-19 06:07:53,383 INFO L175 Difference]: Start difference. First operand has 309 places, 260 transitions, 1223 flow. Second operand 3 states and 2468 transitions. [2024-11-19 06:07:53,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 256 transitions, 1289 flow [2024-11-19 06:07:53,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 256 transitions, 736 flow, removed 276 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:53,390 INFO L231 Difference]: Finished difference. Result has 309 places, 255 transitions, 664 flow [2024-11-19 06:07:53,390 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} [2024-11-19 06:07:53,390 INFO L277 CegarLoopForPetriNet]: 309 programPoint places, 0 predicate places. [2024-11-19 06:07:53,390 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 255 transitions, 664 flow [2024-11-19 06:07:53,390 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) [2024-11-19 06:07:53,391 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:53,391 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] [2024-11-19 06:07:53,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2024-11-19 06:07:53,391 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)] === [2024-11-19 06:07:53,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:53,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1782533126, now seen corresponding path program 1 times [2024-11-19 06:07:53,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:53,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321677750] [2024-11-19 06:07:53,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:53,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:53,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:53,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:53,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321677750] [2024-11-19 06:07:53,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321677750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:53,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:53,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:53,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478303615] [2024-11-19 06:07:53,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:53,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:53,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:53,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:53,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:53,467 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 757 out of 997 [2024-11-19 06:07:53,468 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) [2024-11-19 06:07:53,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:53,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 757 of 997 [2024-11-19 06:07:53,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:53,659 INFO L124 PetriNetUnfolderBase]: 27/1169 cut-off events. [2024-11-19 06:07:53,659 INFO L125 PetriNetUnfolderBase]: For 374/374 co-relation queries the response was YES. [2024-11-19 06:07:53,668 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. [2024-11-19 06:07:53,669 INFO L140 encePairwiseOnDemand]: 991/997 looper letters, 33 selfloop transitions, 1 changer transitions 24/250 dead transitions. [2024-11-19 06:07:53,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 250 transitions, 726 flow [2024-11-19 06:07:53,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:53,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:53,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2312 transitions. [2024-11-19 06:07:53,670 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7729856235372785 [2024-11-19 06:07:53,670 INFO L175 Difference]: Start difference. First operand has 309 places, 255 transitions, 664 flow. Second operand 3 states and 2312 transitions. [2024-11-19 06:07:53,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 250 transitions, 726 flow [2024-11-19 06:07:53,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 250 transitions, 722 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:53,673 INFO L231 Difference]: Finished difference. Result has 303 places, 226 transitions, 602 flow [2024-11-19 06:07:53,673 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} [2024-11-19 06:07:53,674 INFO L277 CegarLoopForPetriNet]: 309 programPoint places, -6 predicate places. [2024-11-19 06:07:53,674 INFO L471 AbstractCegarLoop]: Abstraction has has 303 places, 226 transitions, 602 flow [2024-11-19 06:07:53,674 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) [2024-11-19 06:07:53,674 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:53,674 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] [2024-11-19 06:07:53,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2024-11-19 06:07:53,674 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)] === [2024-11-19 06:07:53,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:53,675 INFO L85 PathProgramCache]: Analyzing trace with hash -609882093, now seen corresponding path program 1 times [2024-11-19 06:07:53,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:53,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628383493] [2024-11-19 06:07:53,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:53,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:53,848 INFO L134 CoverageAnalysis]: Checked inductivity of 4400 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 4325 trivial. 0 not checked. [2024-11-19 06:07:53,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:53,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628383493] [2024-11-19 06:07:53,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628383493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:53,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:53,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:53,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563675300] [2024-11-19 06:07:53,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:53,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:53,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:53,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:53,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:53,935 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 832 out of 997 [2024-11-19 06:07:53,936 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) [2024-11-19 06:07:53,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:53,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 832 of 997 [2024-11-19 06:07:53,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:54,060 INFO L124 PetriNetUnfolderBase]: 0/558 cut-off events. [2024-11-19 06:07:54,061 INFO L125 PetriNetUnfolderBase]: For 373/373 co-relation queries the response was YES. [2024-11-19 06:07:54,061 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. [2024-11-19 06:07:54,062 INFO L140 encePairwiseOnDemand]: 992/997 looper letters, 33 selfloop transitions, 2 changer transitions 3/228 dead transitions. [2024-11-19 06:07:54,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 228 transitions, 682 flow [2024-11-19 06:07:54,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:54,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:54,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4199 transitions. [2024-11-19 06:07:54,063 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8423269809428285 [2024-11-19 06:07:54,063 INFO L175 Difference]: Start difference. First operand has 303 places, 226 transitions, 602 flow. Second operand 5 states and 4199 transitions. [2024-11-19 06:07:54,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 228 transitions, 682 flow [2024-11-19 06:07:54,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 228 transitions, 681 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:54,066 INFO L231 Difference]: Finished difference. Result has 283 places, 225 transitions, 607 flow [2024-11-19 06:07:54,067 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} [2024-11-19 06:07:54,067 INFO L277 CegarLoopForPetriNet]: 309 programPoint places, -26 predicate places. [2024-11-19 06:07:54,067 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 225 transitions, 607 flow [2024-11-19 06:07:54,067 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) [2024-11-19 06:07:54,067 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:54,067 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] [2024-11-19 06:07:54,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2024-11-19 06:07:54,067 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)] === [2024-11-19 06:07:54,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:54,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1314317160, now seen corresponding path program 1 times [2024-11-19 06:07:54,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:54,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488869162] [2024-11-19 06:07:54,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:54,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:54,101 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:54,169 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:54,169 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:54,169 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2024-11-19 06:07:54,169 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2024-11-19 06:07:54,169 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2024-11-19 06:07:54,169 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2024-11-19 06:07:54,169 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2024-11-19 06:07:54,169 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2024-11-19 06:07:54,169 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 33 remaining) [2024-11-19 06:07:54,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2024-11-19 06:07:54,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2024-11-19 06:07:54,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2024-11-19 06:07:54,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2024-11-19 06:07:54,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2024-11-19 06:07:54,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2024-11-19 06:07:54,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2024-11-19 06:07:54,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2024-11-19 06:07:54,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2024-11-19 06:07:54,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2024-11-19 06:07:54,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2024-11-19 06:07:54,170 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2024-11-19 06:07:54,171 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2024-11-19 06:07:54,171 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2024-11-19 06:07:54,171 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2024-11-19 06:07:54,171 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2024-11-19 06:07:54,171 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2024-11-19 06:07:54,171 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2024-11-19 06:07:54,171 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2024-11-19 06:07:54,171 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2024-11-19 06:07:54,171 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2024-11-19 06:07:54,171 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2024-11-19 06:07:54,171 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2024-11-19 06:07:54,171 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2024-11-19 06:07:54,171 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2024-11-19 06:07:54,172 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2024-11-19 06:07:54,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2024-11-19 06:07:54,172 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:54,173 WARN L244 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:54,173 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2024-11-19 06:07:54,255 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:54,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1033 places, 1034 transitions, 3576 flow [2024-11-19 06:07:54,480 INFO L124 PetriNetUnfolderBase]: 137/1759 cut-off events. [2024-11-19 06:07:54,481 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2024-11-19 06:07:54,497 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. [2024-11-19 06:07:54,497 INFO L82 GeneralOperation]: Start removeDead. Operand has 1033 places, 1034 transitions, 3576 flow [2024-11-19 06:07:54,500 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 318 places, 267 transitions, 1291 flow [2024-11-19 06:07:54,501 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:54,501 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:54,501 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-11-19 06:07:54,502 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:54,502 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:54,502 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:54,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:54,502 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:54,502 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)] === [2024-11-19 06:07:54,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:54,502 INFO L85 PathProgramCache]: Analyzing trace with hash 896548355, now seen corresponding path program 1 times [2024-11-19 06:07:54,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:54,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318341690] [2024-11-19 06:07:54,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:54,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:54,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:54,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:54,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:54,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318341690] [2024-11-19 06:07:54,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318341690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:54,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:54,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:54,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569197599] [2024-11-19 06:07:54,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:54,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:54,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:54,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:54,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:54,589 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 839 out of 1034 [2024-11-19 06:07:54,590 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) [2024-11-19 06:07:54,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:54,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 839 of 1034 [2024-11-19 06:07:54,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:54,790 INFO L124 PetriNetUnfolderBase]: 55/1352 cut-off events. [2024-11-19 06:07:54,790 INFO L125 PetriNetUnfolderBase]: For 3628/3628 co-relation queries the response was YES. [2024-11-19 06:07:54,801 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. [2024-11-19 06:07:54,803 INFO L140 encePairwiseOnDemand]: 1028/1034 looper letters, 36 selfloop transitions, 2 changer transitions 1/263 dead transitions. [2024-11-19 06:07:54,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 263 transitions, 1359 flow [2024-11-19 06:07:54,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:54,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:54,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2559 transitions. [2024-11-19 06:07:54,805 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8249516441005803 [2024-11-19 06:07:54,805 INFO L175 Difference]: Start difference. First operand has 318 places, 267 transitions, 1291 flow. Second operand 3 states and 2559 transitions. [2024-11-19 06:07:54,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 263 transitions, 1359 flow [2024-11-19 06:07:54,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 263 transitions, 758 flow, removed 300 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:54,812 INFO L231 Difference]: Finished difference. Result has 318 places, 262 transitions, 684 flow [2024-11-19 06:07:54,812 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} [2024-11-19 06:07:54,812 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, 0 predicate places. [2024-11-19 06:07:54,812 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 262 transitions, 684 flow [2024-11-19 06:07:54,813 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) [2024-11-19 06:07:54,813 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:54,813 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] [2024-11-19 06:07:54,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2024-11-19 06:07:54,813 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)] === [2024-11-19 06:07:54,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:54,814 INFO L85 PathProgramCache]: Analyzing trace with hash -2099820410, now seen corresponding path program 1 times [2024-11-19 06:07:54,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:54,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125312606] [2024-11-19 06:07:54,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:54,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:54,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:54,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:54,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125312606] [2024-11-19 06:07:54,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125312606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:54,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:54,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:54,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500228640] [2024-11-19 06:07:54,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:54,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:54,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:54,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:54,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:54,889 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 785 out of 1034 [2024-11-19 06:07:54,890 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) [2024-11-19 06:07:54,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:54,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 785 of 1034 [2024-11-19 06:07:54,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:55,071 INFO L124 PetriNetUnfolderBase]: 28/1213 cut-off events. [2024-11-19 06:07:55,072 INFO L125 PetriNetUnfolderBase]: For 402/402 co-relation queries the response was YES. [2024-11-19 06:07:55,080 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. [2024-11-19 06:07:55,081 INFO L140 encePairwiseOnDemand]: 1028/1034 looper letters, 34 selfloop transitions, 1 changer transitions 24/257 dead transitions. [2024-11-19 06:07:55,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 257 transitions, 748 flow [2024-11-19 06:07:55,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:55,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:55,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2397 transitions. [2024-11-19 06:07:55,082 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2024-11-19 06:07:55,082 INFO L175 Difference]: Start difference. First operand has 318 places, 262 transitions, 684 flow. Second operand 3 states and 2397 transitions. [2024-11-19 06:07:55,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 257 transitions, 748 flow [2024-11-19 06:07:55,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 257 transitions, 744 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:55,085 INFO L231 Difference]: Finished difference. Result has 312 places, 233 transitions, 622 flow [2024-11-19 06:07:55,086 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} [2024-11-19 06:07:55,086 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, -6 predicate places. [2024-11-19 06:07:55,086 INFO L471 AbstractCegarLoop]: Abstraction has has 312 places, 233 transitions, 622 flow [2024-11-19 06:07:55,086 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) [2024-11-19 06:07:55,086 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:55,086 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] [2024-11-19 06:07:55,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2024-11-19 06:07:55,086 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)] === [2024-11-19 06:07:55,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:55,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1991235079, now seen corresponding path program 1 times [2024-11-19 06:07:55,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:55,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489133950] [2024-11-19 06:07:55,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:55,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:55,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:55,268 INFO L134 CoverageAnalysis]: Checked inductivity of 4758 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 4680 trivial. 0 not checked. [2024-11-19 06:07:55,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:55,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489133950] [2024-11-19 06:07:55,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489133950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:55,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:55,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:55,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905572664] [2024-11-19 06:07:55,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:55,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:55,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:55,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:55,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:55,333 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 863 out of 1034 [2024-11-19 06:07:55,336 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) [2024-11-19 06:07:55,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:55,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 863 of 1034 [2024-11-19 06:07:55,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:55,488 INFO L124 PetriNetUnfolderBase]: 0/578 cut-off events. [2024-11-19 06:07:55,489 INFO L125 PetriNetUnfolderBase]: For 401/401 co-relation queries the response was YES. [2024-11-19 06:07:55,489 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. [2024-11-19 06:07:55,490 INFO L140 encePairwiseOnDemand]: 1029/1034 looper letters, 34 selfloop transitions, 2 changer transitions 3/235 dead transitions. [2024-11-19 06:07:55,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 235 transitions, 704 flow [2024-11-19 06:07:55,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:55,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:55,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4355 transitions. [2024-11-19 06:07:55,493 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8423597678916828 [2024-11-19 06:07:55,493 INFO L175 Difference]: Start difference. First operand has 312 places, 233 transitions, 622 flow. Second operand 5 states and 4355 transitions. [2024-11-19 06:07:55,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 235 transitions, 704 flow [2024-11-19 06:07:55,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 235 transitions, 703 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:55,497 INFO L231 Difference]: Finished difference. Result has 292 places, 232 transitions, 627 flow [2024-11-19 06:07:55,497 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} [2024-11-19 06:07:55,497 INFO L277 CegarLoopForPetriNet]: 318 programPoint places, -26 predicate places. [2024-11-19 06:07:55,497 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 232 transitions, 627 flow [2024-11-19 06:07:55,498 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) [2024-11-19 06:07:55,498 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:55,498 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] [2024-11-19 06:07:55,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2024-11-19 06:07:55,498 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)] === [2024-11-19 06:07:55,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:55,498 INFO L85 PathProgramCache]: Analyzing trace with hash -2037282798, now seen corresponding path program 1 times [2024-11-19 06:07:55,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:55,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877295106] [2024-11-19 06:07:55,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:55,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:55,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:55,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:55,637 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:55,637 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 34 remaining) [2024-11-19 06:07:55,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (32 of 34 remaining) [2024-11-19 06:07:55,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (31 of 34 remaining) [2024-11-19 06:07:55,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (30 of 34 remaining) [2024-11-19 06:07:55,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (29 of 34 remaining) [2024-11-19 06:07:55,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (28 of 34 remaining) [2024-11-19 06:07:55,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 34 remaining) [2024-11-19 06:07:55,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 34 remaining) [2024-11-19 06:07:55,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 34 remaining) [2024-11-19 06:07:55,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 34 remaining) [2024-11-19 06:07:55,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 34 remaining) [2024-11-19 06:07:55,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 34 remaining) [2024-11-19 06:07:55,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 34 remaining) [2024-11-19 06:07:55,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 34 remaining) [2024-11-19 06:07:55,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 34 remaining) [2024-11-19 06:07:55,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 34 remaining) [2024-11-19 06:07:55,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 34 remaining) [2024-11-19 06:07:55,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 34 remaining) [2024-11-19 06:07:55,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 34 remaining) [2024-11-19 06:07:55,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 34 remaining) [2024-11-19 06:07:55,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 34 remaining) [2024-11-19 06:07:55,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 34 remaining) [2024-11-19 06:07:55,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 34 remaining) [2024-11-19 06:07:55,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 34 remaining) [2024-11-19 06:07:55,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 34 remaining) [2024-11-19 06:07:55,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 34 remaining) [2024-11-19 06:07:55,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 34 remaining) [2024-11-19 06:07:55,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 34 remaining) [2024-11-19 06:07:55,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 34 remaining) [2024-11-19 06:07:55,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 34 remaining) [2024-11-19 06:07:55,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 34 remaining) [2024-11-19 06:07:55,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 34 remaining) [2024-11-19 06:07:55,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 34 remaining) [2024-11-19 06:07:55,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 34 remaining) [2024-11-19 06:07:55,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2024-11-19 06:07:55,640 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:55,640 WARN L244 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:55,640 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2024-11-19 06:07:55,751 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:55,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1070 places, 1071 transitions, 3762 flow [2024-11-19 06:07:56,129 INFO L124 PetriNetUnfolderBase]: 142/1823 cut-off events. [2024-11-19 06:07:56,129 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2024-11-19 06:07:56,147 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. [2024-11-19 06:07:56,148 INFO L82 GeneralOperation]: Start removeDead. Operand has 1070 places, 1071 transitions, 3762 flow [2024-11-19 06:07:56,152 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 327 places, 274 transitions, 1361 flow [2024-11-19 06:07:56,152 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:56,153 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:56,153 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-11-19 06:07:56,154 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:56,154 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:56,154 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:56,154 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:56,154 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:56,154 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)] === [2024-11-19 06:07:56,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:56,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1106070787, now seen corresponding path program 1 times [2024-11-19 06:07:56,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:56,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665211144] [2024-11-19 06:07:56,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:56,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:56,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:56,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:56,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665211144] [2024-11-19 06:07:56,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665211144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:56,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:56,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:56,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377087544] [2024-11-19 06:07:56,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:56,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:56,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:56,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:56,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:56,259 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 869 out of 1071 [2024-11-19 06:07:56,260 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) [2024-11-19 06:07:56,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:56,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 869 of 1071 [2024-11-19 06:07:56,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:56,590 INFO L124 PetriNetUnfolderBase]: 57/1401 cut-off events. [2024-11-19 06:07:56,590 INFO L125 PetriNetUnfolderBase]: For 4033/4033 co-relation queries the response was YES. [2024-11-19 06:07:56,601 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. [2024-11-19 06:07:56,604 INFO L140 encePairwiseOnDemand]: 1065/1071 looper letters, 37 selfloop transitions, 2 changer transitions 1/270 dead transitions. [2024-11-19 06:07:56,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 270 transitions, 1431 flow [2024-11-19 06:07:56,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:56,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:56,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2650 transitions. [2024-11-19 06:07:56,607 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8247743541861189 [2024-11-19 06:07:56,607 INFO L175 Difference]: Start difference. First operand has 327 places, 274 transitions, 1361 flow. Second operand 3 states and 2650 transitions. [2024-11-19 06:07:56,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 270 transitions, 1431 flow [2024-11-19 06:07:56,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 270 transitions, 780 flow, removed 325 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:56,616 INFO L231 Difference]: Finished difference. Result has 327 places, 269 transitions, 704 flow [2024-11-19 06:07:56,616 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} [2024-11-19 06:07:56,616 INFO L277 CegarLoopForPetriNet]: 327 programPoint places, 0 predicate places. [2024-11-19 06:07:56,616 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 269 transitions, 704 flow [2024-11-19 06:07:56,617 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) [2024-11-19 06:07:56,617 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:56,617 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:56,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2024-11-19 06:07:56,617 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)] === [2024-11-19 06:07:56,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:56,617 INFO L85 PathProgramCache]: Analyzing trace with hash -567547066, now seen corresponding path program 1 times [2024-11-19 06:07:56,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:56,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113972426] [2024-11-19 06:07:56,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:56,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:56,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:56,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:56,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113972426] [2024-11-19 06:07:56,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113972426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:56,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:56,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:56,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258013320] [2024-11-19 06:07:56,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:56,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:56,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:56,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:56,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:56,701 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 813 out of 1071 [2024-11-19 06:07:56,703 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) [2024-11-19 06:07:56,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:56,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 813 of 1071 [2024-11-19 06:07:56,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:57,013 INFO L124 PetriNetUnfolderBase]: 29/1257 cut-off events. [2024-11-19 06:07:57,013 INFO L125 PetriNetUnfolderBase]: For 431/431 co-relation queries the response was YES. [2024-11-19 06:07:57,023 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. [2024-11-19 06:07:57,024 INFO L140 encePairwiseOnDemand]: 1065/1071 looper letters, 35 selfloop transitions, 1 changer transitions 24/264 dead transitions. [2024-11-19 06:07:57,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 264 transitions, 770 flow [2024-11-19 06:07:57,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:57,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:57,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2482 transitions. [2024-11-19 06:07:57,027 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7724867724867724 [2024-11-19 06:07:57,027 INFO L175 Difference]: Start difference. First operand has 327 places, 269 transitions, 704 flow. Second operand 3 states and 2482 transitions. [2024-11-19 06:07:57,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 264 transitions, 770 flow [2024-11-19 06:07:57,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 264 transitions, 766 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:57,031 INFO L231 Difference]: Finished difference. Result has 321 places, 240 transitions, 642 flow [2024-11-19 06:07:57,031 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} [2024-11-19 06:07:57,031 INFO L277 CegarLoopForPetriNet]: 327 programPoint places, -6 predicate places. [2024-11-19 06:07:57,031 INFO L471 AbstractCegarLoop]: Abstraction has has 321 places, 240 transitions, 642 flow [2024-11-19 06:07:57,032 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) [2024-11-19 06:07:57,032 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:57,032 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] [2024-11-19 06:07:57,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2024-11-19 06:07:57,032 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)] === [2024-11-19 06:07:57,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:57,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1786382521, now seen corresponding path program 1 times [2024-11-19 06:07:57,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:57,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800548553] [2024-11-19 06:07:57,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:57,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:57,153 INFO L134 CoverageAnalysis]: Checked inductivity of 5130 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 5049 trivial. 0 not checked. [2024-11-19 06:07:57,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:57,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800548553] [2024-11-19 06:07:57,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800548553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:57,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:57,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:57,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124831821] [2024-11-19 06:07:57,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:57,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:57,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:57,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:57,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:57,228 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 894 out of 1071 [2024-11-19 06:07:57,230 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) [2024-11-19 06:07:57,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:57,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 894 of 1071 [2024-11-19 06:07:57,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:57,350 INFO L124 PetriNetUnfolderBase]: 0/598 cut-off events. [2024-11-19 06:07:57,350 INFO L125 PetriNetUnfolderBase]: For 430/430 co-relation queries the response was YES. [2024-11-19 06:07:57,350 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. [2024-11-19 06:07:57,351 INFO L140 encePairwiseOnDemand]: 1066/1071 looper letters, 35 selfloop transitions, 2 changer transitions 3/242 dead transitions. [2024-11-19 06:07:57,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 242 transitions, 726 flow [2024-11-19 06:07:57,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:57,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:57,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4511 transitions. [2024-11-19 06:07:57,353 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.842390289449113 [2024-11-19 06:07:57,353 INFO L175 Difference]: Start difference. First operand has 321 places, 240 transitions, 642 flow. Second operand 5 states and 4511 transitions. [2024-11-19 06:07:57,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 242 transitions, 726 flow [2024-11-19 06:07:57,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 242 transitions, 725 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:57,356 INFO L231 Difference]: Finished difference. Result has 301 places, 239 transitions, 647 flow [2024-11-19 06:07:57,356 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} [2024-11-19 06:07:57,356 INFO L277 CegarLoopForPetriNet]: 327 programPoint places, -26 predicate places. [2024-11-19 06:07:57,356 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 239 transitions, 647 flow [2024-11-19 06:07:57,357 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) [2024-11-19 06:07:57,357 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:57,357 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] [2024-11-19 06:07:57,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2024-11-19 06:07:57,357 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)] === [2024-11-19 06:07:57,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:57,357 INFO L85 PathProgramCache]: Analyzing trace with hash -262441629, now seen corresponding path program 1 times [2024-11-19 06:07:57,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:57,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89905734] [2024-11-19 06:07:57,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:57,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:57,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:57,391 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:57,547 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:57,547 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:57,547 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 35 remaining) [2024-11-19 06:07:57,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 35 remaining) [2024-11-19 06:07:57,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 35 remaining) [2024-11-19 06:07:57,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 35 remaining) [2024-11-19 06:07:57,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 35 remaining) [2024-11-19 06:07:57,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 35 remaining) [2024-11-19 06:07:57,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 35 remaining) [2024-11-19 06:07:57,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 35 remaining) [2024-11-19 06:07:57,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 35 remaining) [2024-11-19 06:07:57,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 35 remaining) [2024-11-19 06:07:57,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 35 remaining) [2024-11-19 06:07:57,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 35 remaining) [2024-11-19 06:07:57,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 35 remaining) [2024-11-19 06:07:57,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 35 remaining) [2024-11-19 06:07:57,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 35 remaining) [2024-11-19 06:07:57,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 35 remaining) [2024-11-19 06:07:57,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 35 remaining) [2024-11-19 06:07:57,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 35 remaining) [2024-11-19 06:07:57,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 35 remaining) [2024-11-19 06:07:57,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 35 remaining) [2024-11-19 06:07:57,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 35 remaining) [2024-11-19 06:07:57,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 35 remaining) [2024-11-19 06:07:57,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 35 remaining) [2024-11-19 06:07:57,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 35 remaining) [2024-11-19 06:07:57,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 35 remaining) [2024-11-19 06:07:57,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 35 remaining) [2024-11-19 06:07:57,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 35 remaining) [2024-11-19 06:07:57,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 35 remaining) [2024-11-19 06:07:57,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 35 remaining) [2024-11-19 06:07:57,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 35 remaining) [2024-11-19 06:07:57,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 35 remaining) [2024-11-19 06:07:57,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 35 remaining) [2024-11-19 06:07:57,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 35 remaining) [2024-11-19 06:07:57,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 35 remaining) [2024-11-19 06:07:57,549 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 35 remaining) [2024-11-19 06:07:57,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2024-11-19 06:07:57,549 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:57,549 WARN L244 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:57,549 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2024-11-19 06:07:57,632 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:57,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1107 places, 1108 transitions, 3952 flow [2024-11-19 06:07:57,889 INFO L124 PetriNetUnfolderBase]: 147/1887 cut-off events. [2024-11-19 06:07:57,890 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2024-11-19 06:07:57,909 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. [2024-11-19 06:07:57,909 INFO L82 GeneralOperation]: Start removeDead. Operand has 1107 places, 1108 transitions, 3952 flow [2024-11-19 06:07:57,912 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 336 places, 281 transitions, 1433 flow [2024-11-19 06:07:57,913 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:57,913 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:57,913 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-11-19 06:07:57,914 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:57,914 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:57,914 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:57,914 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:57,914 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:57,914 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)] === [2024-11-19 06:07:57,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:57,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1266688259, now seen corresponding path program 1 times [2024-11-19 06:07:57,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:57,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318725147] [2024-11-19 06:07:57,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:57,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:57,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:57,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:57,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318725147] [2024-11-19 06:07:57,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318725147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:57,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:57,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:57,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948160236] [2024-11-19 06:07:57,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:57,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:57,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:57,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:57,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:58,024 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 899 out of 1108 [2024-11-19 06:07:58,026 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) [2024-11-19 06:07:58,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:58,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 899 of 1108 [2024-11-19 06:07:58,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:58,268 INFO L124 PetriNetUnfolderBase]: 59/1450 cut-off events. [2024-11-19 06:07:58,268 INFO L125 PetriNetUnfolderBase]: For 4467/4467 co-relation queries the response was YES. [2024-11-19 06:07:58,281 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. [2024-11-19 06:07:58,284 INFO L140 encePairwiseOnDemand]: 1102/1108 looper letters, 38 selfloop transitions, 2 changer transitions 1/277 dead transitions. [2024-11-19 06:07:58,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 277 transitions, 1505 flow [2024-11-19 06:07:58,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:58,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:58,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2741 transitions. [2024-11-19 06:07:58,285 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8246089049338147 [2024-11-19 06:07:58,286 INFO L175 Difference]: Start difference. First operand has 336 places, 281 transitions, 1433 flow. Second operand 3 states and 2741 transitions. [2024-11-19 06:07:58,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 277 transitions, 1505 flow [2024-11-19 06:07:58,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 277 transitions, 802 flow, removed 351 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:58,294 INFO L231 Difference]: Finished difference. Result has 336 places, 276 transitions, 724 flow [2024-11-19 06:07:58,294 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} [2024-11-19 06:07:58,295 INFO L277 CegarLoopForPetriNet]: 336 programPoint places, 0 predicate places. [2024-11-19 06:07:58,295 INFO L471 AbstractCegarLoop]: Abstraction has has 336 places, 276 transitions, 724 flow [2024-11-19 06:07:58,295 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) [2024-11-19 06:07:58,295 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:58,295 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:58,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2024-11-19 06:07:58,295 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)] === [2024-11-19 06:07:58,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:58,296 INFO L85 PathProgramCache]: Analyzing trace with hash 2084385862, now seen corresponding path program 1 times [2024-11-19 06:07:58,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:58,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003559598] [2024-11-19 06:07:58,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:58,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:58,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:58,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:58,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003559598] [2024-11-19 06:07:58,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003559598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:58,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:58,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:58,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69255743] [2024-11-19 06:07:58,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:58,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:58,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:58,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:58,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:58,383 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 841 out of 1108 [2024-11-19 06:07:58,384 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) [2024-11-19 06:07:58,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:58,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 841 of 1108 [2024-11-19 06:07:58,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:58,639 INFO L124 PetriNetUnfolderBase]: 30/1301 cut-off events. [2024-11-19 06:07:58,639 INFO L125 PetriNetUnfolderBase]: For 461/461 co-relation queries the response was YES. [2024-11-19 06:07:58,665 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. [2024-11-19 06:07:58,666 INFO L140 encePairwiseOnDemand]: 1102/1108 looper letters, 36 selfloop transitions, 1 changer transitions 24/271 dead transitions. [2024-11-19 06:07:58,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 271 transitions, 792 flow [2024-11-19 06:07:58,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:58,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:58,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2567 transitions. [2024-11-19 06:07:58,669 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7722623345367028 [2024-11-19 06:07:58,670 INFO L175 Difference]: Start difference. First operand has 336 places, 276 transitions, 724 flow. Second operand 3 states and 2567 transitions. [2024-11-19 06:07:58,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 271 transitions, 792 flow [2024-11-19 06:07:58,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 271 transitions, 788 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:07:58,673 INFO L231 Difference]: Finished difference. Result has 330 places, 247 transitions, 662 flow [2024-11-19 06:07:58,673 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} [2024-11-19 06:07:58,674 INFO L277 CegarLoopForPetriNet]: 336 programPoint places, -6 predicate places. [2024-11-19 06:07:58,674 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 247 transitions, 662 flow [2024-11-19 06:07:58,674 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) [2024-11-19 06:07:58,674 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:58,674 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] [2024-11-19 06:07:58,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2024-11-19 06:07:58,674 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-19 06:07:58,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:58,675 INFO L85 PathProgramCache]: Analyzing trace with hash -669616845, now seen corresponding path program 1 times [2024-11-19 06:07:58,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:58,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178836027] [2024-11-19 06:07:58,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:58,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:58,798 INFO L134 CoverageAnalysis]: Checked inductivity of 5516 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 5432 trivial. 0 not checked. [2024-11-19 06:07:58,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:58,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178836027] [2024-11-19 06:07:58,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178836027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:58,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:58,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:07:58,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133801070] [2024-11-19 06:07:58,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:58,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:07:58,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:58,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:07:58,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:07:58,894 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 925 out of 1108 [2024-11-19 06:07:58,895 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) [2024-11-19 06:07:58,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:58,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 925 of 1108 [2024-11-19 06:07:58,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:59,019 INFO L124 PetriNetUnfolderBase]: 0/618 cut-off events. [2024-11-19 06:07:59,019 INFO L125 PetriNetUnfolderBase]: For 460/460 co-relation queries the response was YES. [2024-11-19 06:07:59,020 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. [2024-11-19 06:07:59,020 INFO L140 encePairwiseOnDemand]: 1103/1108 looper letters, 36 selfloop transitions, 2 changer transitions 3/249 dead transitions. [2024-11-19 06:07:59,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 249 transitions, 748 flow [2024-11-19 06:07:59,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:07:59,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:07:59,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4667 transitions. [2024-11-19 06:07:59,022 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8424187725631769 [2024-11-19 06:07:59,022 INFO L175 Difference]: Start difference. First operand has 330 places, 247 transitions, 662 flow. Second operand 5 states and 4667 transitions. [2024-11-19 06:07:59,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 249 transitions, 748 flow [2024-11-19 06:07:59,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 249 transitions, 747 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:59,026 INFO L231 Difference]: Finished difference. Result has 310 places, 246 transitions, 667 flow [2024-11-19 06:07:59,026 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} [2024-11-19 06:07:59,026 INFO L277 CegarLoopForPetriNet]: 336 programPoint places, -26 predicate places. [2024-11-19 06:07:59,026 INFO L471 AbstractCegarLoop]: Abstraction has has 310 places, 246 transitions, 667 flow [2024-11-19 06:07:59,027 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) [2024-11-19 06:07:59,027 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:59,027 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] [2024-11-19 06:07:59,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2024-11-19 06:07:59,027 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)] === [2024-11-19 06:07:59,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:59,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1068415739, now seen corresponding path program 1 times [2024-11-19 06:07:59,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:59,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950590731] [2024-11-19 06:07:59,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:59,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:59,066 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:07:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:07:59,153 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:07:59,154 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:07:59,154 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2024-11-19 06:07:59,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2024-11-19 06:07:59,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2024-11-19 06:07:59,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2024-11-19 06:07:59,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2024-11-19 06:07:59,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2024-11-19 06:07:59,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 36 remaining) [2024-11-19 06:07:59,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2024-11-19 06:07:59,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2024-11-19 06:07:59,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2024-11-19 06:07:59,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2024-11-19 06:07:59,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2024-11-19 06:07:59,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2024-11-19 06:07:59,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2024-11-19 06:07:59,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2024-11-19 06:07:59,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2024-11-19 06:07:59,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2024-11-19 06:07:59,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2024-11-19 06:07:59,154 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2024-11-19 06:07:59,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2024-11-19 06:07:59,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2024-11-19 06:07:59,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2024-11-19 06:07:59,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2024-11-19 06:07:59,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2024-11-19 06:07:59,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2024-11-19 06:07:59,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2024-11-19 06:07:59,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2024-11-19 06:07:59,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2024-11-19 06:07:59,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2024-11-19 06:07:59,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2024-11-19 06:07:59,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2024-11-19 06:07:59,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2024-11-19 06:07:59,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2024-11-19 06:07:59,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2024-11-19 06:07:59,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2024-11-19 06:07:59,155 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2024-11-19 06:07:59,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2024-11-19 06:07:59,155 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:07:59,156 WARN L244 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:07:59,156 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2024-11-19 06:07:59,251 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:07:59,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1144 places, 1145 transitions, 4146 flow [2024-11-19 06:07:59,523 INFO L124 PetriNetUnfolderBase]: 152/1951 cut-off events. [2024-11-19 06:07:59,524 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2024-11-19 06:07:59,543 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. [2024-11-19 06:07:59,543 INFO L82 GeneralOperation]: Start removeDead. Operand has 1144 places, 1145 transitions, 4146 flow [2024-11-19 06:07:59,547 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 345 places, 288 transitions, 1507 flow [2024-11-19 06:07:59,547 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:07:59,547 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:07:59,547 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-11-19 06:07:59,548 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:07:59,548 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:07:59,548 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:07:59,548 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:59,548 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:07:59,548 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)] === [2024-11-19 06:07:59,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:59,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1378400771, now seen corresponding path program 1 times [2024-11-19 06:07:59,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:59,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181163338] [2024-11-19 06:07:59,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:59,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:59,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:59,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:59,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181163338] [2024-11-19 06:07:59,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181163338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:59,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:59,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:59,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918722151] [2024-11-19 06:07:59,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:59,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:59,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:59,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:59,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:07:59,643 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 929 out of 1145 [2024-11-19 06:07:59,644 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) [2024-11-19 06:07:59,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:07:59,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 929 of 1145 [2024-11-19 06:07:59,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:07:59,949 INFO L124 PetriNetUnfolderBase]: 61/1499 cut-off events. [2024-11-19 06:07:59,949 INFO L125 PetriNetUnfolderBase]: For 4931/4931 co-relation queries the response was YES. [2024-11-19 06:07:59,960 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. [2024-11-19 06:07:59,962 INFO L140 encePairwiseOnDemand]: 1139/1145 looper letters, 39 selfloop transitions, 2 changer transitions 1/284 dead transitions. [2024-11-19 06:07:59,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 284 transitions, 1581 flow [2024-11-19 06:07:59,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:07:59,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:07:59,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2832 transitions. [2024-11-19 06:07:59,964 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8244541484716157 [2024-11-19 06:07:59,964 INFO L175 Difference]: Start difference. First operand has 345 places, 288 transitions, 1507 flow. Second operand 3 states and 2832 transitions. [2024-11-19 06:07:59,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 284 transitions, 1581 flow [2024-11-19 06:07:59,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 284 transitions, 824 flow, removed 378 selfloop flow, removed 1 redundant places. [2024-11-19 06:07:59,972 INFO L231 Difference]: Finished difference. Result has 345 places, 283 transitions, 744 flow [2024-11-19 06:07:59,972 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} [2024-11-19 06:07:59,972 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, 0 predicate places. [2024-11-19 06:07:59,972 INFO L471 AbstractCegarLoop]: Abstraction has has 345 places, 283 transitions, 744 flow [2024-11-19 06:07:59,973 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) [2024-11-19 06:07:59,973 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:07:59,973 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] [2024-11-19 06:07:59,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2024-11-19 06:07:59,973 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)] === [2024-11-19 06:07:59,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:07:59,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1561011078, now seen corresponding path program 1 times [2024-11-19 06:07:59,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:07:59,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352891783] [2024-11-19 06:07:59,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:07:59,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:07:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:07:59,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:07:59,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:07:59,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352891783] [2024-11-19 06:07:59,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352891783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:07:59,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:07:59,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:07:59,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36884299] [2024-11-19 06:07:59,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:07:59,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:07:59,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:07:59,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:07:59,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:00,065 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 869 out of 1145 [2024-11-19 06:08:00,066 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) [2024-11-19 06:08:00,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:00,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 869 of 1145 [2024-11-19 06:08:00,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:00,279 INFO L124 PetriNetUnfolderBase]: 31/1345 cut-off events. [2024-11-19 06:08:00,279 INFO L125 PetriNetUnfolderBase]: For 492/492 co-relation queries the response was YES. [2024-11-19 06:08:00,290 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. [2024-11-19 06:08:00,291 INFO L140 encePairwiseOnDemand]: 1139/1145 looper letters, 37 selfloop transitions, 1 changer transitions 24/278 dead transitions. [2024-11-19 06:08:00,291 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 278 transitions, 814 flow [2024-11-19 06:08:00,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:00,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:00,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2652 transitions. [2024-11-19 06:08:00,292 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7720524017467248 [2024-11-19 06:08:00,292 INFO L175 Difference]: Start difference. First operand has 345 places, 283 transitions, 744 flow. Second operand 3 states and 2652 transitions. [2024-11-19 06:08:00,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 278 transitions, 814 flow [2024-11-19 06:08:00,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 278 transitions, 810 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:08:00,295 INFO L231 Difference]: Finished difference. Result has 339 places, 254 transitions, 682 flow [2024-11-19 06:08:00,296 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} [2024-11-19 06:08:00,296 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, -6 predicate places. [2024-11-19 06:08:00,296 INFO L471 AbstractCegarLoop]: Abstraction has has 339 places, 254 transitions, 682 flow [2024-11-19 06:08:00,296 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) [2024-11-19 06:08:00,296 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:00,296 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] [2024-11-19 06:08:00,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2024-11-19 06:08:00,296 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)] === [2024-11-19 06:08:00,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:00,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1702375723, now seen corresponding path program 1 times [2024-11-19 06:08:00,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:00,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207656721] [2024-11-19 06:08:00,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:00,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:00,392 INFO L134 CoverageAnalysis]: Checked inductivity of 5916 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 5829 trivial. 0 not checked. [2024-11-19 06:08:00,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:00,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207656721] [2024-11-19 06:08:00,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207656721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:00,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:00,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:08:00,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936483630] [2024-11-19 06:08:00,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:00,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:08:00,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:00,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:08:00,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:08:00,478 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 956 out of 1145 [2024-11-19 06:08:00,479 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) [2024-11-19 06:08:00,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:00,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 956 of 1145 [2024-11-19 06:08:00,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:00,593 INFO L124 PetriNetUnfolderBase]: 0/638 cut-off events. [2024-11-19 06:08:00,594 INFO L125 PetriNetUnfolderBase]: For 491/491 co-relation queries the response was YES. [2024-11-19 06:08:00,594 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. [2024-11-19 06:08:00,594 INFO L140 encePairwiseOnDemand]: 1140/1145 looper letters, 37 selfloop transitions, 2 changer transitions 3/256 dead transitions. [2024-11-19 06:08:00,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 256 transitions, 770 flow [2024-11-19 06:08:00,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:08:00,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:08:00,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4823 transitions. [2024-11-19 06:08:00,596 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8424454148471616 [2024-11-19 06:08:00,596 INFO L175 Difference]: Start difference. First operand has 339 places, 254 transitions, 682 flow. Second operand 5 states and 4823 transitions. [2024-11-19 06:08:00,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 256 transitions, 770 flow [2024-11-19 06:08:00,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 256 transitions, 769 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:00,599 INFO L231 Difference]: Finished difference. Result has 319 places, 253 transitions, 687 flow [2024-11-19 06:08:00,600 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} [2024-11-19 06:08:00,600 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, -26 predicate places. [2024-11-19 06:08:00,600 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 253 transitions, 687 flow [2024-11-19 06:08:00,600 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) [2024-11-19 06:08:00,600 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:00,600 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] [2024-11-19 06:08:00,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2024-11-19 06:08:00,601 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)] === [2024-11-19 06:08:00,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:00,601 INFO L85 PathProgramCache]: Analyzing trace with hash 826427514, now seen corresponding path program 1 times [2024-11-19 06:08:00,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:00,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463278246] [2024-11-19 06:08:00,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:00,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:00,638 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:08:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:00,726 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:08:00,726 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:08:00,726 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2024-11-19 06:08:00,726 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2024-11-19 06:08:00,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2024-11-19 06:08:00,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2024-11-19 06:08:00,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2024-11-19 06:08:00,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2024-11-19 06:08:00,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 37 remaining) [2024-11-19 06:08:00,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2024-11-19 06:08:00,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2024-11-19 06:08:00,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2024-11-19 06:08:00,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2024-11-19 06:08:00,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2024-11-19 06:08:00,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2024-11-19 06:08:00,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2024-11-19 06:08:00,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2024-11-19 06:08:00,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2024-11-19 06:08:00,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2024-11-19 06:08:00,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2024-11-19 06:08:00,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2024-11-19 06:08:00,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2024-11-19 06:08:00,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2024-11-19 06:08:00,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2024-11-19 06:08:00,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2024-11-19 06:08:00,727 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2024-11-19 06:08:00,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2024-11-19 06:08:00,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2024-11-19 06:08:00,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2024-11-19 06:08:00,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2024-11-19 06:08:00,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2024-11-19 06:08:00,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2024-11-19 06:08:00,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2024-11-19 06:08:00,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2024-11-19 06:08:00,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2024-11-19 06:08:00,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2024-11-19 06:08:00,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2024-11-19 06:08:00,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2024-11-19 06:08:00,728 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2024-11-19 06:08:00,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2024-11-19 06:08:00,728 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:08:00,729 WARN L244 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:08:00,729 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2024-11-19 06:08:00,819 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:08:00,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1181 places, 1182 transitions, 4344 flow [2024-11-19 06:08:01,113 INFO L124 PetriNetUnfolderBase]: 157/2015 cut-off events. [2024-11-19 06:08:01,113 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2024-11-19 06:08:01,135 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. [2024-11-19 06:08:01,135 INFO L82 GeneralOperation]: Start removeDead. Operand has 1181 places, 1182 transitions, 4344 flow [2024-11-19 06:08:01,139 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 354 places, 295 transitions, 1583 flow [2024-11-19 06:08:01,139 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:08:01,139 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:08:01,139 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-11-19 06:08:01,140 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:08:01,140 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:08:01,141 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:08:01,141 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:01,141 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:01,141 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)] === [2024-11-19 06:08:01,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:01,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1441208323, now seen corresponding path program 1 times [2024-11-19 06:08:01,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:01,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042123085] [2024-11-19 06:08:01,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:01,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:01,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:01,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:01,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042123085] [2024-11-19 06:08:01,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042123085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:01,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:01,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:01,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615513898] [2024-11-19 06:08:01,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:01,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:01,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:01,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:01,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:01,242 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 959 out of 1182 [2024-11-19 06:08:01,243 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) [2024-11-19 06:08:01,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:01,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 959 of 1182 [2024-11-19 06:08:01,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:01,564 INFO L124 PetriNetUnfolderBase]: 63/1548 cut-off events. [2024-11-19 06:08:01,564 INFO L125 PetriNetUnfolderBase]: For 5426/5426 co-relation queries the response was YES. [2024-11-19 06:08:01,581 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. [2024-11-19 06:08:01,585 INFO L140 encePairwiseOnDemand]: 1176/1182 looper letters, 40 selfloop transitions, 2 changer transitions 1/291 dead transitions. [2024-11-19 06:08:01,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 291 transitions, 1659 flow [2024-11-19 06:08:01,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:01,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:01,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2923 transitions. [2024-11-19 06:08:01,587 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8243090806542583 [2024-11-19 06:08:01,587 INFO L175 Difference]: Start difference. First operand has 354 places, 295 transitions, 1583 flow. Second operand 3 states and 2923 transitions. [2024-11-19 06:08:01,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 291 transitions, 1659 flow [2024-11-19 06:08:01,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 291 transitions, 846 flow, removed 406 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:01,597 INFO L231 Difference]: Finished difference. Result has 354 places, 290 transitions, 764 flow [2024-11-19 06:08:01,597 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} [2024-11-19 06:08:01,597 INFO L277 CegarLoopForPetriNet]: 354 programPoint places, 0 predicate places. [2024-11-19 06:08:01,597 INFO L471 AbstractCegarLoop]: Abstraction has has 354 places, 290 transitions, 764 flow [2024-11-19 06:08:01,598 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) [2024-11-19 06:08:01,598 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:01,598 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:01,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2024-11-19 06:08:01,598 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)] === [2024-11-19 06:08:01,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:01,598 INFO L85 PathProgramCache]: Analyzing trace with hash -2137671418, now seen corresponding path program 1 times [2024-11-19 06:08:01,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:01,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910625055] [2024-11-19 06:08:01,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:01,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:01,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:01,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:01,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910625055] [2024-11-19 06:08:01,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910625055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:01,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:01,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:01,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815334977] [2024-11-19 06:08:01,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:01,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:01,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:01,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:01,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:01,687 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 897 out of 1182 [2024-11-19 06:08:01,688 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) [2024-11-19 06:08:01,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:01,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 897 of 1182 [2024-11-19 06:08:01,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:01,999 INFO L124 PetriNetUnfolderBase]: 32/1389 cut-off events. [2024-11-19 06:08:01,999 INFO L125 PetriNetUnfolderBase]: For 524/524 co-relation queries the response was YES. [2024-11-19 06:08:02,005 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. [2024-11-19 06:08:02,006 INFO L140 encePairwiseOnDemand]: 1176/1182 looper letters, 38 selfloop transitions, 1 changer transitions 24/285 dead transitions. [2024-11-19 06:08:02,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 285 transitions, 836 flow [2024-11-19 06:08:02,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:02,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:02,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2737 transitions. [2024-11-19 06:08:02,008 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7718556119571348 [2024-11-19 06:08:02,008 INFO L175 Difference]: Start difference. First operand has 354 places, 290 transitions, 764 flow. Second operand 3 states and 2737 transitions. [2024-11-19 06:08:02,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 285 transitions, 836 flow [2024-11-19 06:08:02,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 285 transitions, 832 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:08:02,011 INFO L231 Difference]: Finished difference. Result has 348 places, 261 transitions, 702 flow [2024-11-19 06:08:02,011 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} [2024-11-19 06:08:02,011 INFO L277 CegarLoopForPetriNet]: 354 programPoint places, -6 predicate places. [2024-11-19 06:08:02,011 INFO L471 AbstractCegarLoop]: Abstraction has has 348 places, 261 transitions, 702 flow [2024-11-19 06:08:02,011 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) [2024-11-19 06:08:02,011 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:02,011 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] [2024-11-19 06:08:02,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2024-11-19 06:08:02,012 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)] === [2024-11-19 06:08:02,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:02,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1171338097, now seen corresponding path program 1 times [2024-11-19 06:08:02,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:02,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057670858] [2024-11-19 06:08:02,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:02,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:02,108 INFO L134 CoverageAnalysis]: Checked inductivity of 6330 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 6240 trivial. 0 not checked. [2024-11-19 06:08:02,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:02,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057670858] [2024-11-19 06:08:02,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057670858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:02,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:02,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:08:02,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187711773] [2024-11-19 06:08:02,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:02,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:08:02,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:02,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:08:02,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:08:02,189 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 987 out of 1182 [2024-11-19 06:08:02,191 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) [2024-11-19 06:08:02,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:02,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 987 of 1182 [2024-11-19 06:08:02,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:02,311 INFO L124 PetriNetUnfolderBase]: 0/658 cut-off events. [2024-11-19 06:08:02,311 INFO L125 PetriNetUnfolderBase]: For 523/523 co-relation queries the response was YES. [2024-11-19 06:08:02,311 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. [2024-11-19 06:08:02,312 INFO L140 encePairwiseOnDemand]: 1177/1182 looper letters, 38 selfloop transitions, 2 changer transitions 3/263 dead transitions. [2024-11-19 06:08:02,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 263 transitions, 792 flow [2024-11-19 06:08:02,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:08:02,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:08:02,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4979 transitions. [2024-11-19 06:08:02,314 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8424703891708968 [2024-11-19 06:08:02,314 INFO L175 Difference]: Start difference. First operand has 348 places, 261 transitions, 702 flow. Second operand 5 states and 4979 transitions. [2024-11-19 06:08:02,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 263 transitions, 792 flow [2024-11-19 06:08:02,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 263 transitions, 791 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:02,317 INFO L231 Difference]: Finished difference. Result has 328 places, 260 transitions, 707 flow [2024-11-19 06:08:02,317 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} [2024-11-19 06:08:02,317 INFO L277 CegarLoopForPetriNet]: 354 programPoint places, -26 predicate places. [2024-11-19 06:08:02,318 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 260 transitions, 707 flow [2024-11-19 06:08:02,318 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) [2024-11-19 06:08:02,318 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:02,318 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] [2024-11-19 06:08:02,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2024-11-19 06:08:02,318 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-19 06:08:02,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:02,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1430646144, now seen corresponding path program 1 times [2024-11-19 06:08:02,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:02,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503158071] [2024-11-19 06:08:02,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:02,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:02,358 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:08:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:02,457 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:08:02,458 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:08:02,458 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2024-11-19 06:08:02,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2024-11-19 06:08:02,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2024-11-19 06:08:02,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2024-11-19 06:08:02,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2024-11-19 06:08:02,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2024-11-19 06:08:02,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 38 remaining) [2024-11-19 06:08:02,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2024-11-19 06:08:02,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2024-11-19 06:08:02,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2024-11-19 06:08:02,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2024-11-19 06:08:02,458 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2024-11-19 06:08:02,459 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2024-11-19 06:08:02,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2024-11-19 06:08:02,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2024-11-19 06:08:02,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2024-11-19 06:08:02,460 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:08:02,460 WARN L244 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:08:02,460 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2024-11-19 06:08:02,549 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:08:02,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1218 places, 1219 transitions, 4546 flow [2024-11-19 06:08:02,889 INFO L124 PetriNetUnfolderBase]: 162/2079 cut-off events. [2024-11-19 06:08:02,890 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2024-11-19 06:08:02,913 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. [2024-11-19 06:08:02,913 INFO L82 GeneralOperation]: Start removeDead. Operand has 1218 places, 1219 transitions, 4546 flow [2024-11-19 06:08:02,917 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 363 places, 302 transitions, 1661 flow [2024-11-19 06:08:02,918 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:08:02,918 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:08:02,918 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-19 06:08:02,919 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:08:02,919 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:08:02,919 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:08:02,919 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:02,919 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:02,919 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)] === [2024-11-19 06:08:02,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:02,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1455110915, now seen corresponding path program 1 times [2024-11-19 06:08:02,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:02,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611550113] [2024-11-19 06:08:02,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:02,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:02,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:02,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:02,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611550113] [2024-11-19 06:08:02,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611550113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:02,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:02,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:02,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263952599] [2024-11-19 06:08:02,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:02,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:02,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:02,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:02,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:03,021 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 989 out of 1219 [2024-11-19 06:08:03,022 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) [2024-11-19 06:08:03,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:03,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 989 of 1219 [2024-11-19 06:08:03,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:03,301 INFO L124 PetriNetUnfolderBase]: 65/1597 cut-off events. [2024-11-19 06:08:03,301 INFO L125 PetriNetUnfolderBase]: For 5953/5953 co-relation queries the response was YES. [2024-11-19 06:08:03,318 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. [2024-11-19 06:08:03,321 INFO L140 encePairwiseOnDemand]: 1213/1219 looper letters, 41 selfloop transitions, 2 changer transitions 1/298 dead transitions. [2024-11-19 06:08:03,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 298 transitions, 1739 flow [2024-11-19 06:08:03,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:03,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:03,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3014 transitions. [2024-11-19 06:08:03,323 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.824172819250752 [2024-11-19 06:08:03,323 INFO L175 Difference]: Start difference. First operand has 363 places, 302 transitions, 1661 flow. Second operand 3 states and 3014 transitions. [2024-11-19 06:08:03,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 298 transitions, 1739 flow [2024-11-19 06:08:03,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 298 transitions, 868 flow, removed 435 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:03,332 INFO L231 Difference]: Finished difference. Result has 363 places, 297 transitions, 784 flow [2024-11-19 06:08:03,333 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} [2024-11-19 06:08:03,333 INFO L277 CegarLoopForPetriNet]: 363 programPoint places, 0 predicate places. [2024-11-19 06:08:03,333 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 297 transitions, 784 flow [2024-11-19 06:08:03,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 990.3333333333334) internal successors, (2971), 3 states have internal predecessors, (2971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:03,333 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:03,333 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:03,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2024-11-19 06:08:03,333 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-19 06:08:03,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:03,334 INFO L85 PathProgramCache]: Analyzing trace with hash -421727034, now seen corresponding path program 1 times [2024-11-19 06:08:03,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:03,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117714956] [2024-11-19 06:08:03,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:03,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:03,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:03,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:03,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:03,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117714956] [2024-11-19 06:08:03,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117714956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:03,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:03,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:03,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9801784] [2024-11-19 06:08:03,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:03,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:03,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:03,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:03,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:03,412 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 925 out of 1219 [2024-11-19 06:08:03,413 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) [2024-11-19 06:08:03,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:03,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 925 of 1219 [2024-11-19 06:08:03,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:03,678 INFO L124 PetriNetUnfolderBase]: 33/1433 cut-off events. [2024-11-19 06:08:03,678 INFO L125 PetriNetUnfolderBase]: For 557/557 co-relation queries the response was YES. [2024-11-19 06:08:03,694 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. [2024-11-19 06:08:03,696 INFO L140 encePairwiseOnDemand]: 1213/1219 looper letters, 39 selfloop transitions, 1 changer transitions 24/292 dead transitions. [2024-11-19 06:08:03,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 292 transitions, 858 flow [2024-11-19 06:08:03,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:03,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:03,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2822 transitions. [2024-11-19 06:08:03,698 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7716707683893902 [2024-11-19 06:08:03,698 INFO L175 Difference]: Start difference. First operand has 363 places, 297 transitions, 784 flow. Second operand 3 states and 2822 transitions. [2024-11-19 06:08:03,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 292 transitions, 858 flow [2024-11-19 06:08:03,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 292 transitions, 854 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:08:03,701 INFO L231 Difference]: Finished difference. Result has 357 places, 268 transitions, 722 flow [2024-11-19 06:08:03,701 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} [2024-11-19 06:08:03,702 INFO L277 CegarLoopForPetriNet]: 363 programPoint places, -6 predicate places. [2024-11-19 06:08:03,702 INFO L471 AbstractCegarLoop]: Abstraction has has 357 places, 268 transitions, 722 flow [2024-11-19 06:08:03,702 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) [2024-11-19 06:08:03,702 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:03,702 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] [2024-11-19 06:08:03,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2024-11-19 06:08:03,702 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-19 06:08:03,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:03,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1225873217, now seen corresponding path program 1 times [2024-11-19 06:08:03,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:03,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161241716] [2024-11-19 06:08:03,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:03,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:03,819 INFO L134 CoverageAnalysis]: Checked inductivity of 6758 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 6665 trivial. 0 not checked. [2024-11-19 06:08:03,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:03,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161241716] [2024-11-19 06:08:03,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161241716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:03,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:03,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:08:03,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063504712] [2024-11-19 06:08:03,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:03,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:08:03,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:03,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:08:03,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:08:03,907 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1018 out of 1219 [2024-11-19 06:08:03,908 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) [2024-11-19 06:08:03,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:03,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1018 of 1219 [2024-11-19 06:08:03,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:04,188 INFO L124 PetriNetUnfolderBase]: 0/678 cut-off events. [2024-11-19 06:08:04,188 INFO L125 PetriNetUnfolderBase]: For 556/556 co-relation queries the response was YES. [2024-11-19 06:08:04,189 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. [2024-11-19 06:08:04,189 INFO L140 encePairwiseOnDemand]: 1214/1219 looper letters, 39 selfloop transitions, 2 changer transitions 3/270 dead transitions. [2024-11-19 06:08:04,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 270 transitions, 814 flow [2024-11-19 06:08:04,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:08:04,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:08:04,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5135 transitions. [2024-11-19 06:08:04,193 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8424938474159147 [2024-11-19 06:08:04,194 INFO L175 Difference]: Start difference. First operand has 357 places, 268 transitions, 722 flow. Second operand 5 states and 5135 transitions. [2024-11-19 06:08:04,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 270 transitions, 814 flow [2024-11-19 06:08:04,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 270 transitions, 813 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:04,198 INFO L231 Difference]: Finished difference. Result has 337 places, 267 transitions, 727 flow [2024-11-19 06:08:04,198 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} [2024-11-19 06:08:04,198 INFO L277 CegarLoopForPetriNet]: 363 programPoint places, -26 predicate places. [2024-11-19 06:08:04,198 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 267 transitions, 727 flow [2024-11-19 06:08:04,199 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) [2024-11-19 06:08:04,199 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:04,199 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] [2024-11-19 06:08:04,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2024-11-19 06:08:04,199 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)] === [2024-11-19 06:08:04,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:04,199 INFO L85 PathProgramCache]: Analyzing trace with hash 262035885, now seen corresponding path program 1 times [2024-11-19 06:08:04,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:04,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325365739] [2024-11-19 06:08:04,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:04,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:04,270 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:08:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:04,392 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:08:04,392 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:08:04,392 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2024-11-19 06:08:04,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2024-11-19 06:08:04,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2024-11-19 06:08:04,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2024-11-19 06:08:04,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2024-11-19 06:08:04,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2024-11-19 06:08:04,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 39 remaining) [2024-11-19 06:08:04,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2024-11-19 06:08:04,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2024-11-19 06:08:04,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2024-11-19 06:08:04,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2024-11-19 06:08:04,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2024-11-19 06:08:04,393 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2024-11-19 06:08:04,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2024-11-19 06:08:04,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2024-11-19 06:08:04,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2024-11-19 06:08:04,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2024-11-19 06:08:04,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2024-11-19 06:08:04,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2024-11-19 06:08:04,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2024-11-19 06:08:04,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2024-11-19 06:08:04,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2024-11-19 06:08:04,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2024-11-19 06:08:04,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2024-11-19 06:08:04,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2024-11-19 06:08:04,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2024-11-19 06:08:04,394 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2024-11-19 06:08:04,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2024-11-19 06:08:04,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2024-11-19 06:08:04,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2024-11-19 06:08:04,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2024-11-19 06:08:04,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2024-11-19 06:08:04,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2024-11-19 06:08:04,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2024-11-19 06:08:04,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2024-11-19 06:08:04,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2024-11-19 06:08:04,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2024-11-19 06:08:04,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2024-11-19 06:08:04,395 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2024-11-19 06:08:04,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2024-11-19 06:08:04,396 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:08:04,396 WARN L244 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:08:04,396 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2024-11-19 06:08:04,520 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:08:04,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1255 places, 1256 transitions, 4752 flow [2024-11-19 06:08:05,045 INFO L124 PetriNetUnfolderBase]: 167/2143 cut-off events. [2024-11-19 06:08:05,045 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2024-11-19 06:08:05,075 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. [2024-11-19 06:08:05,075 INFO L82 GeneralOperation]: Start removeDead. Operand has 1255 places, 1256 transitions, 4752 flow [2024-11-19 06:08:05,081 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 372 places, 309 transitions, 1741 flow [2024-11-19 06:08:05,081 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:08:05,081 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:08:05,081 INFO L334 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2024-11-19 06:08:05,083 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:08:05,083 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:08:05,083 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:08:05,083 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:05,084 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:05,084 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)] === [2024-11-19 06:08:05,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:05,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1420108547, now seen corresponding path program 1 times [2024-11-19 06:08:05,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:05,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449621618] [2024-11-19 06:08:05,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:05,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:05,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:05,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:05,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449621618] [2024-11-19 06:08:05,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449621618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:05,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:05,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:05,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235174730] [2024-11-19 06:08:05,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:05,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:05,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:05,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:05,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:05,212 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1019 out of 1256 [2024-11-19 06:08:05,214 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) [2024-11-19 06:08:05,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:05,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1019 of 1256 [2024-11-19 06:08:05,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:05,672 INFO L124 PetriNetUnfolderBase]: 67/1646 cut-off events. [2024-11-19 06:08:05,672 INFO L125 PetriNetUnfolderBase]: For 6513/6513 co-relation queries the response was YES. [2024-11-19 06:08:05,693 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. [2024-11-19 06:08:05,697 INFO L140 encePairwiseOnDemand]: 1250/1256 looper letters, 42 selfloop transitions, 2 changer transitions 1/305 dead transitions. [2024-11-19 06:08:05,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 305 transitions, 1821 flow [2024-11-19 06:08:05,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:05,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:05,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3105 transitions. [2024-11-19 06:08:05,699 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8240445859872612 [2024-11-19 06:08:05,699 INFO L175 Difference]: Start difference. First operand has 372 places, 309 transitions, 1741 flow. Second operand 3 states and 3105 transitions. [2024-11-19 06:08:05,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 305 transitions, 1821 flow [2024-11-19 06:08:05,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 305 transitions, 890 flow, removed 465 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:05,713 INFO L231 Difference]: Finished difference. Result has 372 places, 304 transitions, 804 flow [2024-11-19 06:08:05,713 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} [2024-11-19 06:08:05,714 INFO L277 CegarLoopForPetriNet]: 372 programPoint places, 0 predicate places. [2024-11-19 06:08:05,714 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 304 transitions, 804 flow [2024-11-19 06:08:05,714 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) [2024-11-19 06:08:05,714 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:05,714 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] [2024-11-19 06:08:05,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2024-11-19 06:08:05,714 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)] === [2024-11-19 06:08:05,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:05,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1881090362, now seen corresponding path program 1 times [2024-11-19 06:08:05,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:05,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943921022] [2024-11-19 06:08:05,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:05,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:05,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:05,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:05,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943921022] [2024-11-19 06:08:05,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943921022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:05,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:05,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:05,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412689603] [2024-11-19 06:08:05,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:05,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:05,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:05,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:05,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:05,821 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 953 out of 1256 [2024-11-19 06:08:05,823 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) [2024-11-19 06:08:05,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:05,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 953 of 1256 [2024-11-19 06:08:05,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:06,121 INFO L124 PetriNetUnfolderBase]: 34/1477 cut-off events. [2024-11-19 06:08:06,122 INFO L125 PetriNetUnfolderBase]: For 591/591 co-relation queries the response was YES. [2024-11-19 06:08:06,138 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. [2024-11-19 06:08:06,139 INFO L140 encePairwiseOnDemand]: 1250/1256 looper letters, 40 selfloop transitions, 1 changer transitions 24/299 dead transitions. [2024-11-19 06:08:06,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 299 transitions, 880 flow [2024-11-19 06:08:06,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:06,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:06,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2907 transitions. [2024-11-19 06:08:06,141 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7714968152866242 [2024-11-19 06:08:06,141 INFO L175 Difference]: Start difference. First operand has 372 places, 304 transitions, 804 flow. Second operand 3 states and 2907 transitions. [2024-11-19 06:08:06,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 299 transitions, 880 flow [2024-11-19 06:08:06,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 299 transitions, 876 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:08:06,145 INFO L231 Difference]: Finished difference. Result has 366 places, 275 transitions, 742 flow [2024-11-19 06:08:06,145 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} [2024-11-19 06:08:06,145 INFO L277 CegarLoopForPetriNet]: 372 programPoint places, -6 predicate places. [2024-11-19 06:08:06,145 INFO L471 AbstractCegarLoop]: Abstraction has has 366 places, 275 transitions, 742 flow [2024-11-19 06:08:06,145 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) [2024-11-19 06:08:06,145 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:06,146 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] [2024-11-19 06:08:06,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2024-11-19 06:08:06,146 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)] === [2024-11-19 06:08:06,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:06,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1881086181, now seen corresponding path program 1 times [2024-11-19 06:08:06,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:06,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338344906] [2024-11-19 06:08:06,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:06,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:06,260 INFO L134 CoverageAnalysis]: Checked inductivity of 7200 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 7104 trivial. 0 not checked. [2024-11-19 06:08:06,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:06,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338344906] [2024-11-19 06:08:06,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338344906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:06,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:06,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:08:06,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292780724] [2024-11-19 06:08:06,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:06,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:08:06,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:06,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:08:06,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:08:06,353 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1256 [2024-11-19 06:08:06,354 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) [2024-11-19 06:08:06,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:06,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1256 [2024-11-19 06:08:06,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:06,516 INFO L124 PetriNetUnfolderBase]: 0/698 cut-off events. [2024-11-19 06:08:06,516 INFO L125 PetriNetUnfolderBase]: For 590/590 co-relation queries the response was YES. [2024-11-19 06:08:06,517 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. [2024-11-19 06:08:06,518 INFO L140 encePairwiseOnDemand]: 1251/1256 looper letters, 40 selfloop transitions, 2 changer transitions 3/277 dead transitions. [2024-11-19 06:08:06,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 277 transitions, 836 flow [2024-11-19 06:08:06,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:08:06,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:08:06,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5291 transitions. [2024-11-19 06:08:06,520 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.842515923566879 [2024-11-19 06:08:06,520 INFO L175 Difference]: Start difference. First operand has 366 places, 275 transitions, 742 flow. Second operand 5 states and 5291 transitions. [2024-11-19 06:08:06,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 277 transitions, 836 flow [2024-11-19 06:08:06,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 277 transitions, 835 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:06,524 INFO L231 Difference]: Finished difference. Result has 346 places, 274 transitions, 747 flow [2024-11-19 06:08:06,524 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} [2024-11-19 06:08:06,525 INFO L277 CegarLoopForPetriNet]: 372 programPoint places, -26 predicate places. [2024-11-19 06:08:06,525 INFO L471 AbstractCegarLoop]: Abstraction has has 346 places, 274 transitions, 747 flow [2024-11-19 06:08:06,525 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) [2024-11-19 06:08:06,525 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:06,525 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] [2024-11-19 06:08:06,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2024-11-19 06:08:06,526 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)] === [2024-11-19 06:08:06,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:06,526 INFO L85 PathProgramCache]: Analyzing trace with hash 765533345, now seen corresponding path program 1 times [2024-11-19 06:08:06,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:06,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257921547] [2024-11-19 06:08:06,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:06,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:06,576 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:08:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:06,691 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:08:06,691 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:08:06,691 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 40 remaining) [2024-11-19 06:08:06,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2024-11-19 06:08:06,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2024-11-19 06:08:06,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2024-11-19 06:08:06,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2024-11-19 06:08:06,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2024-11-19 06:08:06,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2024-11-19 06:08:06,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2024-11-19 06:08:06,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2024-11-19 06:08:06,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2024-11-19 06:08:06,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2024-11-19 06:08:06,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2024-11-19 06:08:06,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2024-11-19 06:08:06,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2024-11-19 06:08:06,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2024-11-19 06:08:06,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2024-11-19 06:08:06,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2024-11-19 06:08:06,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2024-11-19 06:08:06,693 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:08:06,693 WARN L244 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:08:06,693 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2024-11-19 06:08:06,786 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:08:06,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1292 places, 1293 transitions, 4962 flow [2024-11-19 06:08:07,233 INFO L124 PetriNetUnfolderBase]: 172/2207 cut-off events. [2024-11-19 06:08:07,233 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2024-11-19 06:08:07,249 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. [2024-11-19 06:08:07,250 INFO L82 GeneralOperation]: Start removeDead. Operand has 1292 places, 1293 transitions, 4962 flow [2024-11-19 06:08:07,253 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 381 places, 316 transitions, 1823 flow [2024-11-19 06:08:07,253 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:08:07,253 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:08:07,253 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2024-11-19 06:08:07,254 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:08:07,254 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:08:07,254 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:08:07,254 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:07,254 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:07,255 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)] === [2024-11-19 06:08:07,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:07,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1336201219, now seen corresponding path program 1 times [2024-11-19 06:08:07,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:07,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540256816] [2024-11-19 06:08:07,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:07,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:07,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:07,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:07,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540256816] [2024-11-19 06:08:07,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540256816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:07,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:07,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:07,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718138017] [2024-11-19 06:08:07,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:07,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:07,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:07,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:07,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:07,376 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1293 [2024-11-19 06:08:07,377 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) [2024-11-19 06:08:07,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:07,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1293 [2024-11-19 06:08:07,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:07,701 INFO L124 PetriNetUnfolderBase]: 69/1695 cut-off events. [2024-11-19 06:08:07,701 INFO L125 PetriNetUnfolderBase]: For 7107/7107 co-relation queries the response was YES. [2024-11-19 06:08:07,720 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. [2024-11-19 06:08:07,723 INFO L140 encePairwiseOnDemand]: 1287/1293 looper letters, 43 selfloop transitions, 2 changer transitions 1/312 dead transitions. [2024-11-19 06:08:07,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 312 transitions, 1905 flow [2024-11-19 06:08:07,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:07,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:07,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3196 transitions. [2024-11-19 06:08:07,724 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8239236916731116 [2024-11-19 06:08:07,724 INFO L175 Difference]: Start difference. First operand has 381 places, 316 transitions, 1823 flow. Second operand 3 states and 3196 transitions. [2024-11-19 06:08:07,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 312 transitions, 1905 flow [2024-11-19 06:08:07,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 312 transitions, 912 flow, removed 496 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:07,735 INFO L231 Difference]: Finished difference. Result has 381 places, 311 transitions, 824 flow [2024-11-19 06:08:07,736 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} [2024-11-19 06:08:07,736 INFO L277 CegarLoopForPetriNet]: 381 programPoint places, 0 predicate places. [2024-11-19 06:08:07,736 INFO L471 AbstractCegarLoop]: Abstraction has has 381 places, 311 transitions, 824 flow [2024-11-19 06:08:07,736 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) [2024-11-19 06:08:07,736 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:07,736 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] [2024-11-19 06:08:07,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2024-11-19 06:08:07,736 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)] === [2024-11-19 06:08:07,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:07,737 INFO L85 PathProgramCache]: Analyzing trace with hash 2074173190, now seen corresponding path program 1 times [2024-11-19 06:08:07,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:07,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474579288] [2024-11-19 06:08:07,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:07,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:07,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:07,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:07,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474579288] [2024-11-19 06:08:07,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474579288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:07,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:07,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:07,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288173817] [2024-11-19 06:08:07,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:07,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:07,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:07,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:07,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:07,822 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 981 out of 1293 [2024-11-19 06:08:07,823 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) [2024-11-19 06:08:07,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:07,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 981 of 1293 [2024-11-19 06:08:07,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:08,102 INFO L124 PetriNetUnfolderBase]: 35/1521 cut-off events. [2024-11-19 06:08:08,102 INFO L125 PetriNetUnfolderBase]: For 626/626 co-relation queries the response was YES. [2024-11-19 06:08:08,117 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. [2024-11-19 06:08:08,118 INFO L140 encePairwiseOnDemand]: 1287/1293 looper letters, 41 selfloop transitions, 1 changer transitions 24/306 dead transitions. [2024-11-19 06:08:08,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 306 transitions, 902 flow [2024-11-19 06:08:08,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:08,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:08,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2992 transitions. [2024-11-19 06:08:08,120 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7713328177365301 [2024-11-19 06:08:08,120 INFO L175 Difference]: Start difference. First operand has 381 places, 311 transitions, 824 flow. Second operand 3 states and 2992 transitions. [2024-11-19 06:08:08,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 306 transitions, 902 flow [2024-11-19 06:08:08,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 306 transitions, 898 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:08:08,123 INFO L231 Difference]: Finished difference. Result has 375 places, 282 transitions, 762 flow [2024-11-19 06:08:08,123 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} [2024-11-19 06:08:08,124 INFO L277 CegarLoopForPetriNet]: 381 programPoint places, -6 predicate places. [2024-11-19 06:08:08,124 INFO L471 AbstractCegarLoop]: Abstraction has has 375 places, 282 transitions, 762 flow [2024-11-19 06:08:08,124 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) [2024-11-19 06:08:08,124 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:08,124 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] [2024-11-19 06:08:08,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2024-11-19 06:08:08,124 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)] === [2024-11-19 06:08:08,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:08,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1013410051, now seen corresponding path program 1 times [2024-11-19 06:08:08,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:08,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311454240] [2024-11-19 06:08:08,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:08,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:08,233 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 7557 trivial. 0 not checked. [2024-11-19 06:08:08,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:08,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311454240] [2024-11-19 06:08:08,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311454240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:08,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:08,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:08:08,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357799927] [2024-11-19 06:08:08,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:08,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:08:08,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:08,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:08:08,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:08:08,317 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1080 out of 1293 [2024-11-19 06:08:08,318 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) [2024-11-19 06:08:08,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:08,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1080 of 1293 [2024-11-19 06:08:08,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:08,488 INFO L124 PetriNetUnfolderBase]: 0/718 cut-off events. [2024-11-19 06:08:08,488 INFO L125 PetriNetUnfolderBase]: For 625/625 co-relation queries the response was YES. [2024-11-19 06:08:08,488 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. [2024-11-19 06:08:08,489 INFO L140 encePairwiseOnDemand]: 1288/1293 looper letters, 41 selfloop transitions, 2 changer transitions 3/284 dead transitions. [2024-11-19 06:08:08,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 284 transitions, 858 flow [2024-11-19 06:08:08,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:08:08,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:08:08,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5447 transitions. [2024-11-19 06:08:08,491 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8425367362722351 [2024-11-19 06:08:08,491 INFO L175 Difference]: Start difference. First operand has 375 places, 282 transitions, 762 flow. Second operand 5 states and 5447 transitions. [2024-11-19 06:08:08,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 284 transitions, 858 flow [2024-11-19 06:08:08,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 284 transitions, 857 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:08,495 INFO L231 Difference]: Finished difference. Result has 355 places, 281 transitions, 767 flow [2024-11-19 06:08:08,496 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} [2024-11-19 06:08:08,496 INFO L277 CegarLoopForPetriNet]: 381 programPoint places, -26 predicate places. [2024-11-19 06:08:08,496 INFO L471 AbstractCegarLoop]: Abstraction has has 355 places, 281 transitions, 767 flow [2024-11-19 06:08:08,497 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) [2024-11-19 06:08:08,497 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:08,497 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] [2024-11-19 06:08:08,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2024-11-19 06:08:08,497 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)] === [2024-11-19 06:08:08,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:08,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1901110780, now seen corresponding path program 1 times [2024-11-19 06:08:08,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:08,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528894598] [2024-11-19 06:08:08,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:08,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:08,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:08,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:08:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:08,671 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:08:08,672 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:08:08,672 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining) [2024-11-19 06:08:08,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (39 of 41 remaining) [2024-11-19 06:08:08,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (38 of 41 remaining) [2024-11-19 06:08:08,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (37 of 41 remaining) [2024-11-19 06:08:08,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (36 of 41 remaining) [2024-11-19 06:08:08,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (35 of 41 remaining) [2024-11-19 06:08:08,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 41 remaining) [2024-11-19 06:08:08,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 41 remaining) [2024-11-19 06:08:08,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 41 remaining) [2024-11-19 06:08:08,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 41 remaining) [2024-11-19 06:08:08,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 41 remaining) [2024-11-19 06:08:08,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 41 remaining) [2024-11-19 06:08:08,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 41 remaining) [2024-11-19 06:08:08,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 41 remaining) [2024-11-19 06:08:08,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 41 remaining) [2024-11-19 06:08:08,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 41 remaining) [2024-11-19 06:08:08,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 41 remaining) [2024-11-19 06:08:08,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 41 remaining) [2024-11-19 06:08:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 41 remaining) [2024-11-19 06:08:08,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2024-11-19 06:08:08,674 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:08:08,674 WARN L244 ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:08:08,674 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances. [2024-11-19 06:08:08,783 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:08:08,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1329 places, 1330 transitions, 5176 flow [2024-11-19 06:08:09,172 INFO L124 PetriNetUnfolderBase]: 177/2271 cut-off events. [2024-11-19 06:08:09,172 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2024-11-19 06:08:09,208 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. [2024-11-19 06:08:09,209 INFO L82 GeneralOperation]: Start removeDead. Operand has 1329 places, 1330 transitions, 5176 flow [2024-11-19 06:08:09,213 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 390 places, 323 transitions, 1907 flow [2024-11-19 06:08:09,213 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:08:09,213 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:08:09,213 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-11-19 06:08:09,214 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:08:09,215 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:08:09,215 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:08:09,215 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:09,215 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:09,215 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)] === [2024-11-19 06:08:09,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:09,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1203388931, now seen corresponding path program 1 times [2024-11-19 06:08:09,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:09,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161756095] [2024-11-19 06:08:09,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:09,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:09,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:09,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:09,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:09,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161756095] [2024-11-19 06:08:09,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161756095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:09,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:09,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:09,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505923706] [2024-11-19 06:08:09,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:09,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:09,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:09,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:09,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:09,341 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1079 out of 1330 [2024-11-19 06:08:09,343 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) [2024-11-19 06:08:09,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:09,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1079 of 1330 [2024-11-19 06:08:09,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:09,701 INFO L124 PetriNetUnfolderBase]: 71/1744 cut-off events. [2024-11-19 06:08:09,701 INFO L125 PetriNetUnfolderBase]: For 7736/7736 co-relation queries the response was YES. [2024-11-19 06:08:09,721 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. [2024-11-19 06:08:09,724 INFO L140 encePairwiseOnDemand]: 1324/1330 looper letters, 44 selfloop transitions, 2 changer transitions 1/319 dead transitions. [2024-11-19 06:08:09,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 319 transitions, 1991 flow [2024-11-19 06:08:09,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:09,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:09,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3287 transitions. [2024-11-19 06:08:09,726 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8238095238095238 [2024-11-19 06:08:09,726 INFO L175 Difference]: Start difference. First operand has 390 places, 323 transitions, 1907 flow. Second operand 3 states and 3287 transitions. [2024-11-19 06:08:09,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 319 transitions, 1991 flow [2024-11-19 06:08:09,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 319 transitions, 934 flow, removed 528 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:09,737 INFO L231 Difference]: Finished difference. Result has 390 places, 318 transitions, 844 flow [2024-11-19 06:08:09,737 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} [2024-11-19 06:08:09,737 INFO L277 CegarLoopForPetriNet]: 390 programPoint places, 0 predicate places. [2024-11-19 06:08:09,738 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 318 transitions, 844 flow [2024-11-19 06:08:09,738 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) [2024-11-19 06:08:09,738 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:09,738 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:09,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2024-11-19 06:08:09,738 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)] === [2024-11-19 06:08:09,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:09,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1440838266, now seen corresponding path program 1 times [2024-11-19 06:08:09,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:09,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839408465] [2024-11-19 06:08:09,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:09,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:09,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:09,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:09,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839408465] [2024-11-19 06:08:09,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839408465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:09,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:09,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:09,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632163671] [2024-11-19 06:08:09,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:09,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:09,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:09,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:09,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:09,826 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1009 out of 1330 [2024-11-19 06:08:09,827 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) [2024-11-19 06:08:09,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:09,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1009 of 1330 [2024-11-19 06:08:09,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:10,237 INFO L124 PetriNetUnfolderBase]: 36/1565 cut-off events. [2024-11-19 06:08:10,238 INFO L125 PetriNetUnfolderBase]: For 662/662 co-relation queries the response was YES. [2024-11-19 06:08:10,250 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. [2024-11-19 06:08:10,251 INFO L140 encePairwiseOnDemand]: 1324/1330 looper letters, 42 selfloop transitions, 1 changer transitions 24/313 dead transitions. [2024-11-19 06:08:10,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 313 transitions, 924 flow [2024-11-19 06:08:10,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:10,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:10,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3077 transitions. [2024-11-19 06:08:10,253 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7711779448621554 [2024-11-19 06:08:10,253 INFO L175 Difference]: Start difference. First operand has 390 places, 318 transitions, 844 flow. Second operand 3 states and 3077 transitions. [2024-11-19 06:08:10,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 313 transitions, 924 flow [2024-11-19 06:08:10,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 313 transitions, 920 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:08:10,257 INFO L231 Difference]: Finished difference. Result has 384 places, 289 transitions, 782 flow [2024-11-19 06:08:10,257 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} [2024-11-19 06:08:10,257 INFO L277 CegarLoopForPetriNet]: 390 programPoint places, -6 predicate places. [2024-11-19 06:08:10,257 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 289 transitions, 782 flow [2024-11-19 06:08:10,258 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) [2024-11-19 06:08:10,258 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:10,258 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] [2024-11-19 06:08:10,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2024-11-19 06:08:10,258 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)] === [2024-11-19 06:08:10,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:10,258 INFO L85 PathProgramCache]: Analyzing trace with hash 123785175, now seen corresponding path program 1 times [2024-11-19 06:08:10,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:10,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884644907] [2024-11-19 06:08:10,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:10,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:10,388 INFO L134 CoverageAnalysis]: Checked inductivity of 8126 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 8024 trivial. 0 not checked. [2024-11-19 06:08:10,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:10,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884644907] [2024-11-19 06:08:10,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884644907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:10,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:10,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:08:10,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622903961] [2024-11-19 06:08:10,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:10,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:08:10,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:10,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:08:10,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:08:10,489 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1111 out of 1330 [2024-11-19 06:08:10,490 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) [2024-11-19 06:08:10,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:10,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1111 of 1330 [2024-11-19 06:08:10,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:10,663 INFO L124 PetriNetUnfolderBase]: 0/738 cut-off events. [2024-11-19 06:08:10,663 INFO L125 PetriNetUnfolderBase]: For 661/661 co-relation queries the response was YES. [2024-11-19 06:08:10,664 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. [2024-11-19 06:08:10,665 INFO L140 encePairwiseOnDemand]: 1325/1330 looper letters, 42 selfloop transitions, 2 changer transitions 3/291 dead transitions. [2024-11-19 06:08:10,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 291 transitions, 880 flow [2024-11-19 06:08:10,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:08:10,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:08:10,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5603 transitions. [2024-11-19 06:08:10,667 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8425563909774436 [2024-11-19 06:08:10,667 INFO L175 Difference]: Start difference. First operand has 384 places, 289 transitions, 782 flow. Second operand 5 states and 5603 transitions. [2024-11-19 06:08:10,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 291 transitions, 880 flow [2024-11-19 06:08:10,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 291 transitions, 879 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:10,671 INFO L231 Difference]: Finished difference. Result has 364 places, 288 transitions, 787 flow [2024-11-19 06:08:10,671 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} [2024-11-19 06:08:10,671 INFO L277 CegarLoopForPetriNet]: 390 programPoint places, -26 predicate places. [2024-11-19 06:08:10,671 INFO L471 AbstractCegarLoop]: Abstraction has has 364 places, 288 transitions, 787 flow [2024-11-19 06:08:10,672 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) [2024-11-19 06:08:10,672 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:10,672 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] [2024-11-19 06:08:10,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2024-11-19 06:08:10,672 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)] === [2024-11-19 06:08:10,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:10,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1914193246, now seen corresponding path program 1 times [2024-11-19 06:08:10,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:10,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782273954] [2024-11-19 06:08:10,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:10,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:10,730 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:08:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:10,861 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:08:10,861 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:08:10,862 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 42 remaining) [2024-11-19 06:08:10,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (40 of 42 remaining) [2024-11-19 06:08:10,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (39 of 42 remaining) [2024-11-19 06:08:10,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (38 of 42 remaining) [2024-11-19 06:08:10,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (37 of 42 remaining) [2024-11-19 06:08:10,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (36 of 42 remaining) [2024-11-19 06:08:10,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 42 remaining) [2024-11-19 06:08:10,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 42 remaining) [2024-11-19 06:08:10,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 42 remaining) [2024-11-19 06:08:10,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 42 remaining) [2024-11-19 06:08:10,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 42 remaining) [2024-11-19 06:08:10,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 42 remaining) [2024-11-19 06:08:10,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 42 remaining) [2024-11-19 06:08:10,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 42 remaining) [2024-11-19 06:08:10,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 42 remaining) [2024-11-19 06:08:10,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 42 remaining) [2024-11-19 06:08:10,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 42 remaining) [2024-11-19 06:08:10,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 42 remaining) [2024-11-19 06:08:10,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 42 remaining) [2024-11-19 06:08:10,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 42 remaining) [2024-11-19 06:08:10,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 42 remaining) [2024-11-19 06:08:10,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 42 remaining) [2024-11-19 06:08:10,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 42 remaining) [2024-11-19 06:08:10,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 42 remaining) [2024-11-19 06:08:10,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 42 remaining) [2024-11-19 06:08:10,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 42 remaining) [2024-11-19 06:08:10,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 42 remaining) [2024-11-19 06:08:10,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 42 remaining) [2024-11-19 06:08:10,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 42 remaining) [2024-11-19 06:08:10,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 42 remaining) [2024-11-19 06:08:10,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 42 remaining) [2024-11-19 06:08:10,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 42 remaining) [2024-11-19 06:08:10,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 42 remaining) [2024-11-19 06:08:10,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 42 remaining) [2024-11-19 06:08:10,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 42 remaining) [2024-11-19 06:08:10,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 42 remaining) [2024-11-19 06:08:10,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 42 remaining) [2024-11-19 06:08:10,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 42 remaining) [2024-11-19 06:08:10,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 42 remaining) [2024-11-19 06:08:10,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 42 remaining) [2024-11-19 06:08:10,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 42 remaining) [2024-11-19 06:08:10,863 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 42 remaining) [2024-11-19 06:08:10,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2024-11-19 06:08:10,864 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:08:10,864 WARN L244 ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:08:10,864 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances. [2024-11-19 06:08:10,961 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:08:10,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1366 places, 1367 transitions, 5394 flow [2024-11-19 06:08:11,361 INFO L124 PetriNetUnfolderBase]: 182/2335 cut-off events. [2024-11-19 06:08:11,361 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2024-11-19 06:08:11,394 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. [2024-11-19 06:08:11,394 INFO L82 GeneralOperation]: Start removeDead. Operand has 1366 places, 1367 transitions, 5394 flow [2024-11-19 06:08:11,399 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 399 places, 330 transitions, 1993 flow [2024-11-19 06:08:11,399 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:08:11,399 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:08:11,399 INFO L334 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2024-11-19 06:08:11,400 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:08:11,400 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:08:11,400 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:08:11,400 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:11,400 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:11,400 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)] === [2024-11-19 06:08:11,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:11,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1021671683, now seen corresponding path program 1 times [2024-11-19 06:08:11,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:11,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101972249] [2024-11-19 06:08:11,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:11,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:11,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:11,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:11,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101972249] [2024-11-19 06:08:11,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101972249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:11,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:11,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:11,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796314823] [2024-11-19 06:08:11,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:11,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:11,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:11,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:11,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:11,529 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1109 out of 1367 [2024-11-19 06:08:11,530 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) [2024-11-19 06:08:11,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:11,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1109 of 1367 [2024-11-19 06:08:11,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:11,894 INFO L124 PetriNetUnfolderBase]: 73/1793 cut-off events. [2024-11-19 06:08:11,894 INFO L125 PetriNetUnfolderBase]: For 8401/8401 co-relation queries the response was YES. [2024-11-19 06:08:11,915 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. [2024-11-19 06:08:11,918 INFO L140 encePairwiseOnDemand]: 1361/1367 looper letters, 45 selfloop transitions, 2 changer transitions 1/326 dead transitions. [2024-11-19 06:08:11,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 326 transitions, 2079 flow [2024-11-19 06:08:11,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:11,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:11,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3378 transitions. [2024-11-19 06:08:11,920 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8237015362106803 [2024-11-19 06:08:11,920 INFO L175 Difference]: Start difference. First operand has 399 places, 330 transitions, 1993 flow. Second operand 3 states and 3378 transitions. [2024-11-19 06:08:11,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 326 transitions, 2079 flow [2024-11-19 06:08:11,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 326 transitions, 956 flow, removed 561 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:11,933 INFO L231 Difference]: Finished difference. Result has 399 places, 325 transitions, 864 flow [2024-11-19 06:08:11,933 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} [2024-11-19 06:08:11,934 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, 0 predicate places. [2024-11-19 06:08:11,934 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 325 transitions, 864 flow [2024-11-19 06:08:11,934 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) [2024-11-19 06:08:11,934 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:11,934 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] [2024-11-19 06:08:11,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2024-11-19 06:08:11,934 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)] === [2024-11-19 06:08:11,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:11,934 INFO L85 PathProgramCache]: Analyzing trace with hash 458777158, now seen corresponding path program 1 times [2024-11-19 06:08:11,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:11,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128438548] [2024-11-19 06:08:11,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:11,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:11,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:11,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:11,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128438548] [2024-11-19 06:08:11,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128438548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:11,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:11,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:11,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757030864] [2024-11-19 06:08:11,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:11,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:11,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:11,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:11,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:12,030 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1037 out of 1367 [2024-11-19 06:08:12,031 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) [2024-11-19 06:08:12,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:12,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1037 of 1367 [2024-11-19 06:08:12,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:12,356 INFO L124 PetriNetUnfolderBase]: 37/1609 cut-off events. [2024-11-19 06:08:12,356 INFO L125 PetriNetUnfolderBase]: For 699/699 co-relation queries the response was YES. [2024-11-19 06:08:12,373 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. [2024-11-19 06:08:12,374 INFO L140 encePairwiseOnDemand]: 1361/1367 looper letters, 43 selfloop transitions, 1 changer transitions 24/320 dead transitions. [2024-11-19 06:08:12,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 320 transitions, 946 flow [2024-11-19 06:08:12,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:12,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:12,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3162 transitions. [2024-11-19 06:08:12,376 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7710314557425019 [2024-11-19 06:08:12,376 INFO L175 Difference]: Start difference. First operand has 399 places, 325 transitions, 864 flow. Second operand 3 states and 3162 transitions. [2024-11-19 06:08:12,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 320 transitions, 946 flow [2024-11-19 06:08:12,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 320 transitions, 942 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:08:12,379 INFO L231 Difference]: Finished difference. Result has 393 places, 296 transitions, 802 flow [2024-11-19 06:08:12,379 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} [2024-11-19 06:08:12,379 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -6 predicate places. [2024-11-19 06:08:12,379 INFO L471 AbstractCegarLoop]: Abstraction has has 393 places, 296 transitions, 802 flow [2024-11-19 06:08:12,380 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) [2024-11-19 06:08:12,380 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:12,380 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] [2024-11-19 06:08:12,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2024-11-19 06:08:12,380 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)] === [2024-11-19 06:08:12,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:12,380 INFO L85 PathProgramCache]: Analyzing trace with hash -538149641, now seen corresponding path program 1 times [2024-11-19 06:08:12,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:12,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871496939] [2024-11-19 06:08:12,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:12,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:12,497 INFO L134 CoverageAnalysis]: Checked inductivity of 8610 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 8505 trivial. 0 not checked. [2024-11-19 06:08:12,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:12,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871496939] [2024-11-19 06:08:12,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871496939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:12,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:12,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:08:12,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743648019] [2024-11-19 06:08:12,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:12,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:08:12,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:12,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:08:12,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:08:12,620 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1142 out of 1367 [2024-11-19 06:08:12,622 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) [2024-11-19 06:08:12,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:12,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1142 of 1367 [2024-11-19 06:08:12,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:12,803 INFO L124 PetriNetUnfolderBase]: 0/758 cut-off events. [2024-11-19 06:08:12,804 INFO L125 PetriNetUnfolderBase]: For 698/698 co-relation queries the response was YES. [2024-11-19 06:08:12,804 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. [2024-11-19 06:08:12,804 INFO L140 encePairwiseOnDemand]: 1362/1367 looper letters, 43 selfloop transitions, 2 changer transitions 3/298 dead transitions. [2024-11-19 06:08:12,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 298 transitions, 902 flow [2024-11-19 06:08:12,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:08:12,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:08:12,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5759 transitions. [2024-11-19 06:08:12,807 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8425749817117776 [2024-11-19 06:08:12,807 INFO L175 Difference]: Start difference. First operand has 393 places, 296 transitions, 802 flow. Second operand 5 states and 5759 transitions. [2024-11-19 06:08:12,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 298 transitions, 902 flow [2024-11-19 06:08:12,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 298 transitions, 901 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:12,922 INFO L231 Difference]: Finished difference. Result has 373 places, 295 transitions, 807 flow [2024-11-19 06:08:12,922 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} [2024-11-19 06:08:12,923 INFO L277 CegarLoopForPetriNet]: 399 programPoint places, -26 predicate places. [2024-11-19 06:08:12,923 INFO L471 AbstractCegarLoop]: Abstraction has has 373 places, 295 transitions, 807 flow [2024-11-19 06:08:12,923 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) [2024-11-19 06:08:12,923 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:12,923 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] [2024-11-19 06:08:12,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2024-11-19 06:08:12,923 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-19 06:08:12,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:12,924 INFO L85 PathProgramCache]: Analyzing trace with hash 856173159, now seen corresponding path program 1 times [2024-11-19 06:08:12,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:12,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521347531] [2024-11-19 06:08:12,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:12,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:12,982 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:08:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:13,112 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:08:13,112 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:08:13,112 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (42 of 43 remaining) [2024-11-19 06:08:13,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (41 of 43 remaining) [2024-11-19 06:08:13,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (40 of 43 remaining) [2024-11-19 06:08:13,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (39 of 43 remaining) [2024-11-19 06:08:13,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (38 of 43 remaining) [2024-11-19 06:08:13,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (37 of 43 remaining) [2024-11-19 06:08:13,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 43 remaining) [2024-11-19 06:08:13,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 43 remaining) [2024-11-19 06:08:13,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 43 remaining) [2024-11-19 06:08:13,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 43 remaining) [2024-11-19 06:08:13,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 43 remaining) [2024-11-19 06:08:13,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 43 remaining) [2024-11-19 06:08:13,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 43 remaining) [2024-11-19 06:08:13,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 43 remaining) [2024-11-19 06:08:13,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 43 remaining) [2024-11-19 06:08:13,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 43 remaining) [2024-11-19 06:08:13,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 43 remaining) [2024-11-19 06:08:13,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 43 remaining) [2024-11-19 06:08:13,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 43 remaining) [2024-11-19 06:08:13,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 43 remaining) [2024-11-19 06:08:13,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 43 remaining) [2024-11-19 06:08:13,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2024-11-19 06:08:13,114 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:08:13,114 WARN L244 ceAbstractionStarter]: 35 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:08:13,114 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 36 thread instances. [2024-11-19 06:08:13,211 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:08:13,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1403 places, 1404 transitions, 5616 flow [2024-11-19 06:08:13,645 INFO L124 PetriNetUnfolderBase]: 187/2399 cut-off events. [2024-11-19 06:08:13,645 INFO L125 PetriNetUnfolderBase]: For 8400/8400 co-relation queries the response was YES. [2024-11-19 06:08:13,686 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. [2024-11-19 06:08:13,686 INFO L82 GeneralOperation]: Start removeDead. Operand has 1403 places, 1404 transitions, 5616 flow [2024-11-19 06:08:13,691 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 408 places, 337 transitions, 2081 flow [2024-11-19 06:08:13,692 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:08:13,692 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:08:13,692 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-11-19 06:08:13,693 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:08:13,693 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:08:13,693 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:08:13,693 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:13,693 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:13,693 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)] === [2024-11-19 06:08:13,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:13,693 INFO L85 PathProgramCache]: Analyzing trace with hash 791049475, now seen corresponding path program 1 times [2024-11-19 06:08:13,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:13,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364625577] [2024-11-19 06:08:13,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:13,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:13,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:13,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:13,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364625577] [2024-11-19 06:08:13,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364625577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:13,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:13,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:13,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627393523] [2024-11-19 06:08:13,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:13,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:13,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:13,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:13,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:13,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1139 out of 1404 [2024-11-19 06:08:13,827 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) [2024-11-19 06:08:13,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:13,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1139 of 1404 [2024-11-19 06:08:13,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:14,210 INFO L124 PetriNetUnfolderBase]: 75/1842 cut-off events. [2024-11-19 06:08:14,211 INFO L125 PetriNetUnfolderBase]: For 9103/9103 co-relation queries the response was YES. [2024-11-19 06:08:14,234 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. [2024-11-19 06:08:14,238 INFO L140 encePairwiseOnDemand]: 1398/1404 looper letters, 46 selfloop transitions, 2 changer transitions 1/333 dead transitions. [2024-11-19 06:08:14,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 333 transitions, 2169 flow [2024-11-19 06:08:14,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:14,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:14,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3469 transitions. [2024-11-19 06:08:14,240 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8235992402659069 [2024-11-19 06:08:14,240 INFO L175 Difference]: Start difference. First operand has 408 places, 337 transitions, 2081 flow. Second operand 3 states and 3469 transitions. [2024-11-19 06:08:14,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 333 transitions, 2169 flow [2024-11-19 06:08:14,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 333 transitions, 978 flow, removed 595 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:14,252 INFO L231 Difference]: Finished difference. Result has 408 places, 332 transitions, 884 flow [2024-11-19 06:08:14,253 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} [2024-11-19 06:08:14,253 INFO L277 CegarLoopForPetriNet]: 408 programPoint places, 0 predicate places. [2024-11-19 06:08:14,253 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 332 transitions, 884 flow [2024-11-19 06:08:14,253 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) [2024-11-19 06:08:14,253 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:14,253 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] [2024-11-19 06:08:14,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2024-11-19 06:08:14,253 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)] === [2024-11-19 06:08:14,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:14,254 INFO L85 PathProgramCache]: Analyzing trace with hash -816915130, now seen corresponding path program 1 times [2024-11-19 06:08:14,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:14,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274769882] [2024-11-19 06:08:14,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:14,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:14,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:14,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:14,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274769882] [2024-11-19 06:08:14,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274769882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:14,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:14,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:14,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543097135] [2024-11-19 06:08:14,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:14,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:14,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:14,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:14,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:14,363 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1065 out of 1404 [2024-11-19 06:08:14,364 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) [2024-11-19 06:08:14,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:14,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1065 of 1404 [2024-11-19 06:08:14,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:14,701 INFO L124 PetriNetUnfolderBase]: 38/1653 cut-off events. [2024-11-19 06:08:14,701 INFO L125 PetriNetUnfolderBase]: For 737/737 co-relation queries the response was YES. [2024-11-19 06:08:14,721 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. [2024-11-19 06:08:14,722 INFO L140 encePairwiseOnDemand]: 1398/1404 looper letters, 44 selfloop transitions, 1 changer transitions 24/327 dead transitions. [2024-11-19 06:08:14,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 327 transitions, 968 flow [2024-11-19 06:08:14,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:14,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:14,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3247 transitions. [2024-11-19 06:08:14,724 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7708926875593543 [2024-11-19 06:08:14,724 INFO L175 Difference]: Start difference. First operand has 408 places, 332 transitions, 884 flow. Second operand 3 states and 3247 transitions. [2024-11-19 06:08:14,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 327 transitions, 968 flow [2024-11-19 06:08:14,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 327 transitions, 964 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:08:14,727 INFO L231 Difference]: Finished difference. Result has 402 places, 303 transitions, 822 flow [2024-11-19 06:08:14,728 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} [2024-11-19 06:08:14,728 INFO L277 CegarLoopForPetriNet]: 408 programPoint places, -6 predicate places. [2024-11-19 06:08:14,728 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 303 transitions, 822 flow [2024-11-19 06:08:14,728 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) [2024-11-19 06:08:14,728 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:14,728 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] [2024-11-19 06:08:14,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2024-11-19 06:08:14,729 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)] === [2024-11-19 06:08:14,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:14,729 INFO L85 PathProgramCache]: Analyzing trace with hash 179212739, now seen corresponding path program 1 times [2024-11-19 06:08:14,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:14,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58307605] [2024-11-19 06:08:14,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:14,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:14,864 INFO L134 CoverageAnalysis]: Checked inductivity of 9108 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 9000 trivial. 0 not checked. [2024-11-19 06:08:14,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:14,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58307605] [2024-11-19 06:08:14,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58307605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:14,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:14,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:08:14,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572209151] [2024-11-19 06:08:14,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:14,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:08:14,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:14,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:08:14,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:08:14,968 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1173 out of 1404 [2024-11-19 06:08:14,970 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) [2024-11-19 06:08:14,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:14,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1173 of 1404 [2024-11-19 06:08:14,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:15,162 INFO L124 PetriNetUnfolderBase]: 0/778 cut-off events. [2024-11-19 06:08:15,162 INFO L125 PetriNetUnfolderBase]: For 736/736 co-relation queries the response was YES. [2024-11-19 06:08:15,162 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. [2024-11-19 06:08:15,163 INFO L140 encePairwiseOnDemand]: 1399/1404 looper letters, 44 selfloop transitions, 2 changer transitions 3/305 dead transitions. [2024-11-19 06:08:15,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 305 transitions, 924 flow [2024-11-19 06:08:15,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:08:15,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:08:15,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5915 transitions. [2024-11-19 06:08:15,166 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8425925925925926 [2024-11-19 06:08:15,166 INFO L175 Difference]: Start difference. First operand has 402 places, 303 transitions, 822 flow. Second operand 5 states and 5915 transitions. [2024-11-19 06:08:15,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 305 transitions, 924 flow [2024-11-19 06:08:15,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 305 transitions, 923 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:15,170 INFO L231 Difference]: Finished difference. Result has 382 places, 302 transitions, 827 flow [2024-11-19 06:08:15,170 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} [2024-11-19 06:08:15,170 INFO L277 CegarLoopForPetriNet]: 408 programPoint places, -26 predicate places. [2024-11-19 06:08:15,170 INFO L471 AbstractCegarLoop]: Abstraction has has 382 places, 302 transitions, 827 flow [2024-11-19 06:08:15,171 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) [2024-11-19 06:08:15,171 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:15,171 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] [2024-11-19 06:08:15,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2024-11-19 06:08:15,171 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)] === [2024-11-19 06:08:15,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:15,171 INFO L85 PathProgramCache]: Analyzing trace with hash -829332297, now seen corresponding path program 1 times [2024-11-19 06:08:15,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:15,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722459915] [2024-11-19 06:08:15,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:15,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:15,225 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:08:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:15,361 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:08:15,362 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:08:15,362 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 44 remaining) [2024-11-19 06:08:15,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2024-11-19 06:08:15,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2024-11-19 06:08:15,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2024-11-19 06:08:15,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2024-11-19 06:08:15,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2024-11-19 06:08:15,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 44 remaining) [2024-11-19 06:08:15,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2024-11-19 06:08:15,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2024-11-19 06:08:15,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 44 remaining) [2024-11-19 06:08:15,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2024-11-19 06:08:15,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2024-11-19 06:08:15,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2024-11-19 06:08:15,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2024-11-19 06:08:15,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2024-11-19 06:08:15,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2024-11-19 06:08:15,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2024-11-19 06:08:15,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 44 remaining) [2024-11-19 06:08:15,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 44 remaining) [2024-11-19 06:08:15,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 44 remaining) [2024-11-19 06:08:15,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 44 remaining) [2024-11-19 06:08:15,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2024-11-19 06:08:15,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 44 remaining) [2024-11-19 06:08:15,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 44 remaining) [2024-11-19 06:08:15,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 44 remaining) [2024-11-19 06:08:15,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2024-11-19 06:08:15,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2024-11-19 06:08:15,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2024-11-19 06:08:15,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2024-11-19 06:08:15,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2024-11-19 06:08:15,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2024-11-19 06:08:15,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 44 remaining) [2024-11-19 06:08:15,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2024-11-19 06:08:15,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 44 remaining) [2024-11-19 06:08:15,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2024-11-19 06:08:15,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2024-11-19 06:08:15,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2024-11-19 06:08:15,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2024-11-19 06:08:15,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2024-11-19 06:08:15,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2024-11-19 06:08:15,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2024-11-19 06:08:15,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2024-11-19 06:08:15,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2024-11-19 06:08:15,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 44 remaining) [2024-11-19 06:08:15,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2024-11-19 06:08:15,365 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:08:15,365 WARN L244 ceAbstractionStarter]: 36 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:08:15,365 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 37 thread instances. [2024-11-19 06:08:15,480 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:08:15,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1440 places, 1441 transitions, 5842 flow [2024-11-19 06:08:16,123 INFO L124 PetriNetUnfolderBase]: 192/2463 cut-off events. [2024-11-19 06:08:16,123 INFO L125 PetriNetUnfolderBase]: For 9102/9102 co-relation queries the response was YES. [2024-11-19 06:08:16,151 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. [2024-11-19 06:08:16,151 INFO L82 GeneralOperation]: Start removeDead. Operand has 1440 places, 1441 transitions, 5842 flow [2024-11-19 06:08:16,157 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 417 places, 344 transitions, 2171 flow [2024-11-19 06:08:16,157 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:08:16,157 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:08:16,157 INFO L334 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2024-11-19 06:08:16,159 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:08:16,159 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:08:16,159 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:08:16,159 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:16,159 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:16,159 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)] === [2024-11-19 06:08:16,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:16,160 INFO L85 PathProgramCache]: Analyzing trace with hash 511522307, now seen corresponding path program 1 times [2024-11-19 06:08:16,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:16,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381796827] [2024-11-19 06:08:16,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:16,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:16,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:16,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:16,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381796827] [2024-11-19 06:08:16,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381796827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:16,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:16,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:16,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505898240] [2024-11-19 06:08:16,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:16,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:16,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:16,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:16,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:16,315 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1169 out of 1441 [2024-11-19 06:08:16,317 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) [2024-11-19 06:08:16,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:16,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1169 of 1441 [2024-11-19 06:08:16,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:16,895 INFO L124 PetriNetUnfolderBase]: 77/1891 cut-off events. [2024-11-19 06:08:16,895 INFO L125 PetriNetUnfolderBase]: For 9843/9843 co-relation queries the response was YES. [2024-11-19 06:08:16,922 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. [2024-11-19 06:08:16,926 INFO L140 encePairwiseOnDemand]: 1435/1441 looper letters, 47 selfloop transitions, 2 changer transitions 1/340 dead transitions. [2024-11-19 06:08:16,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 340 transitions, 2261 flow [2024-11-19 06:08:16,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:16,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:16,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3560 transitions. [2024-11-19 06:08:16,929 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.823502197547999 [2024-11-19 06:08:16,929 INFO L175 Difference]: Start difference. First operand has 417 places, 344 transitions, 2171 flow. Second operand 3 states and 3560 transitions. [2024-11-19 06:08:16,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 340 transitions, 2261 flow [2024-11-19 06:08:16,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 340 transitions, 1000 flow, removed 630 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:16,947 INFO L231 Difference]: Finished difference. Result has 417 places, 339 transitions, 904 flow [2024-11-19 06:08:16,947 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} [2024-11-19 06:08:16,947 INFO L277 CegarLoopForPetriNet]: 417 programPoint places, 0 predicate places. [2024-11-19 06:08:16,947 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 339 transitions, 904 flow [2024-11-19 06:08:16,948 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) [2024-11-19 06:08:16,948 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:16,948 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:16,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2024-11-19 06:08:16,948 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)] === [2024-11-19 06:08:16,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:16,948 INFO L85 PathProgramCache]: Analyzing trace with hash -972947834, now seen corresponding path program 1 times [2024-11-19 06:08:16,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:16,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366474275] [2024-11-19 06:08:16,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:16,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:16,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:16,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:16,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366474275] [2024-11-19 06:08:16,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366474275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:16,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:16,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:16,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42186242] [2024-11-19 06:08:16,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:16,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:16,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:16,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:16,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:17,083 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1093 out of 1441 [2024-11-19 06:08:17,084 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) [2024-11-19 06:08:17,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:17,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1093 of 1441 [2024-11-19 06:08:17,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:17,469 INFO L124 PetriNetUnfolderBase]: 39/1697 cut-off events. [2024-11-19 06:08:17,469 INFO L125 PetriNetUnfolderBase]: For 776/776 co-relation queries the response was YES. [2024-11-19 06:08:17,492 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. [2024-11-19 06:08:17,493 INFO L140 encePairwiseOnDemand]: 1435/1441 looper letters, 45 selfloop transitions, 1 changer transitions 24/334 dead transitions. [2024-11-19 06:08:17,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 334 transitions, 990 flow [2024-11-19 06:08:17,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:17,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:17,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3332 transitions. [2024-11-19 06:08:17,495 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7707610455702059 [2024-11-19 06:08:17,495 INFO L175 Difference]: Start difference. First operand has 417 places, 339 transitions, 904 flow. Second operand 3 states and 3332 transitions. [2024-11-19 06:08:17,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 334 transitions, 990 flow [2024-11-19 06:08:17,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 334 transitions, 986 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:08:17,499 INFO L231 Difference]: Finished difference. Result has 411 places, 310 transitions, 842 flow [2024-11-19 06:08:17,499 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} [2024-11-19 06:08:17,499 INFO L277 CegarLoopForPetriNet]: 417 programPoint places, -6 predicate places. [2024-11-19 06:08:17,499 INFO L471 AbstractCegarLoop]: Abstraction has has 411 places, 310 transitions, 842 flow [2024-11-19 06:08:17,499 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) [2024-11-19 06:08:17,499 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:17,499 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] [2024-11-19 06:08:17,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2024-11-19 06:08:17,500 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)] === [2024-11-19 06:08:17,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:17,500 INFO L85 PathProgramCache]: Analyzing trace with hash -745279589, now seen corresponding path program 1 times [2024-11-19 06:08:17,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:17,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715681867] [2024-11-19 06:08:17,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:17,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:17,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:17,654 INFO L134 CoverageAnalysis]: Checked inductivity of 9620 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 9509 trivial. 0 not checked. [2024-11-19 06:08:17,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:17,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715681867] [2024-11-19 06:08:17,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715681867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:17,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:17,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:08:17,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465275669] [2024-11-19 06:08:17,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:17,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:08:17,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:17,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:08:17,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:08:17,768 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1204 out of 1441 [2024-11-19 06:08:17,771 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) [2024-11-19 06:08:17,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:17,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1204 of 1441 [2024-11-19 06:08:17,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:18,018 INFO L124 PetriNetUnfolderBase]: 0/798 cut-off events. [2024-11-19 06:08:18,019 INFO L125 PetriNetUnfolderBase]: For 775/775 co-relation queries the response was YES. [2024-11-19 06:08:18,019 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. [2024-11-19 06:08:18,020 INFO L140 encePairwiseOnDemand]: 1436/1441 looper letters, 45 selfloop transitions, 2 changer transitions 3/312 dead transitions. [2024-11-19 06:08:18,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 312 transitions, 946 flow [2024-11-19 06:08:18,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:08:18,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:08:18,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6071 transitions. [2024-11-19 06:08:18,023 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8426092990978488 [2024-11-19 06:08:18,023 INFO L175 Difference]: Start difference. First operand has 411 places, 310 transitions, 842 flow. Second operand 5 states and 6071 transitions. [2024-11-19 06:08:18,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 312 transitions, 946 flow [2024-11-19 06:08:18,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 312 transitions, 945 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:18,027 INFO L231 Difference]: Finished difference. Result has 391 places, 309 transitions, 847 flow [2024-11-19 06:08:18,027 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} [2024-11-19 06:08:18,027 INFO L277 CegarLoopForPetriNet]: 417 programPoint places, -26 predicate places. [2024-11-19 06:08:18,027 INFO L471 AbstractCegarLoop]: Abstraction has has 391 places, 309 transitions, 847 flow [2024-11-19 06:08:18,028 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) [2024-11-19 06:08:18,028 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:18,028 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] [2024-11-19 06:08:18,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2024-11-19 06:08:18,028 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)] === [2024-11-19 06:08:18,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:18,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1748900882, now seen corresponding path program 1 times [2024-11-19 06:08:18,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:18,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816087056] [2024-11-19 06:08:18,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:18,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:18,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:08:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:18,274 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:08:18,275 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:08:18,275 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (44 of 45 remaining) [2024-11-19 06:08:18,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (43 of 45 remaining) [2024-11-19 06:08:18,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (42 of 45 remaining) [2024-11-19 06:08:18,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (41 of 45 remaining) [2024-11-19 06:08:18,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (40 of 45 remaining) [2024-11-19 06:08:18,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 45 remaining) [2024-11-19 06:08:18,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 45 remaining) [2024-11-19 06:08:18,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 45 remaining) [2024-11-19 06:08:18,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 45 remaining) [2024-11-19 06:08:18,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 45 remaining) [2024-11-19 06:08:18,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 45 remaining) [2024-11-19 06:08:18,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 45 remaining) [2024-11-19 06:08:18,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 45 remaining) [2024-11-19 06:08:18,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 45 remaining) [2024-11-19 06:08:18,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 45 remaining) [2024-11-19 06:08:18,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 45 remaining) [2024-11-19 06:08:18,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 45 remaining) [2024-11-19 06:08:18,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 45 remaining) [2024-11-19 06:08:18,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 45 remaining) [2024-11-19 06:08:18,277 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 45 remaining) [2024-11-19 06:08:18,277 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 45 remaining) [2024-11-19 06:08:18,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2024-11-19 06:08:18,277 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:08:18,277 WARN L244 ceAbstractionStarter]: 37 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:08:18,277 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 38 thread instances. [2024-11-19 06:08:18,379 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:08:18,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1477 places, 1478 transitions, 6072 flow [2024-11-19 06:08:18,871 INFO L124 PetriNetUnfolderBase]: 197/2527 cut-off events. [2024-11-19 06:08:18,871 INFO L125 PetriNetUnfolderBase]: For 9842/9842 co-relation queries the response was YES. [2024-11-19 06:08:18,910 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. [2024-11-19 06:08:18,911 INFO L82 GeneralOperation]: Start removeDead. Operand has 1477 places, 1478 transitions, 6072 flow [2024-11-19 06:08:18,916 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 426 places, 351 transitions, 2263 flow [2024-11-19 06:08:18,916 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:08:18,916 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:08:18,916 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2024-11-19 06:08:18,917 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:08:18,917 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:08:18,917 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:08:18,917 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:18,917 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:18,918 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)] === [2024-11-19 06:08:18,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:18,918 INFO L85 PathProgramCache]: Analyzing trace with hash 183090179, now seen corresponding path program 1 times [2024-11-19 06:08:18,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:18,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746592247] [2024-11-19 06:08:18,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:18,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:18,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:18,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:18,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746592247] [2024-11-19 06:08:18,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746592247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:18,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:18,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:18,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660488648] [2024-11-19 06:08:18,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:18,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:18,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:18,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:18,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:19,038 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1199 out of 1478 [2024-11-19 06:08:19,040 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) [2024-11-19 06:08:19,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:19,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1199 of 1478 [2024-11-19 06:08:19,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:19,469 INFO L124 PetriNetUnfolderBase]: 79/1940 cut-off events. [2024-11-19 06:08:19,470 INFO L125 PetriNetUnfolderBase]: For 10622/10622 co-relation queries the response was YES. [2024-11-19 06:08:19,499 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. [2024-11-19 06:08:19,503 INFO L140 encePairwiseOnDemand]: 1472/1478 looper letters, 48 selfloop transitions, 2 changer transitions 1/347 dead transitions. [2024-11-19 06:08:19,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 347 transitions, 2355 flow [2024-11-19 06:08:19,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:19,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:19,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3651 transitions. [2024-11-19 06:08:19,505 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8234100135317998 [2024-11-19 06:08:19,505 INFO L175 Difference]: Start difference. First operand has 426 places, 351 transitions, 2263 flow. Second operand 3 states and 3651 transitions. [2024-11-19 06:08:19,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 347 transitions, 2355 flow [2024-11-19 06:08:19,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 347 transitions, 1022 flow, removed 666 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:19,520 INFO L231 Difference]: Finished difference. Result has 426 places, 346 transitions, 924 flow [2024-11-19 06:08:19,521 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} [2024-11-19 06:08:19,521 INFO L277 CegarLoopForPetriNet]: 426 programPoint places, 0 predicate places. [2024-11-19 06:08:19,521 INFO L471 AbstractCegarLoop]: Abstraction has has 426 places, 346 transitions, 924 flow [2024-11-19 06:08:19,521 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) [2024-11-19 06:08:19,521 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:19,521 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] [2024-11-19 06:08:19,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2024-11-19 06:08:19,522 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)] === [2024-11-19 06:08:19,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:19,522 INFO L85 PathProgramCache]: Analyzing trace with hash -9320954, now seen corresponding path program 1 times [2024-11-19 06:08:19,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:19,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022606926] [2024-11-19 06:08:19,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:19,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:19,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:19,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:19,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022606926] [2024-11-19 06:08:19,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022606926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:19,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:19,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:19,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609448960] [2024-11-19 06:08:19,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:19,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:19,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:19,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:19,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:19,622 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1121 out of 1478 [2024-11-19 06:08:19,623 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) [2024-11-19 06:08:19,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:19,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1121 of 1478 [2024-11-19 06:08:19,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:20,101 INFO L124 PetriNetUnfolderBase]: 40/1741 cut-off events. [2024-11-19 06:08:20,101 INFO L125 PetriNetUnfolderBase]: For 816/816 co-relation queries the response was YES. [2024-11-19 06:08:20,122 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. [2024-11-19 06:08:20,124 INFO L140 encePairwiseOnDemand]: 1472/1478 looper letters, 46 selfloop transitions, 1 changer transitions 24/341 dead transitions. [2024-11-19 06:08:20,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 341 transitions, 1012 flow [2024-11-19 06:08:20,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:20,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:20,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3417 transitions. [2024-11-19 06:08:20,125 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7706359945872802 [2024-11-19 06:08:20,125 INFO L175 Difference]: Start difference. First operand has 426 places, 346 transitions, 924 flow. Second operand 3 states and 3417 transitions. [2024-11-19 06:08:20,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 341 transitions, 1012 flow [2024-11-19 06:08:20,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 341 transitions, 1008 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:08:20,129 INFO L231 Difference]: Finished difference. Result has 420 places, 317 transitions, 862 flow [2024-11-19 06:08:20,129 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} [2024-11-19 06:08:20,129 INFO L277 CegarLoopForPetriNet]: 426 programPoint places, -6 predicate places. [2024-11-19 06:08:20,129 INFO L471 AbstractCegarLoop]: Abstraction has has 420 places, 317 transitions, 862 flow [2024-11-19 06:08:20,130 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) [2024-11-19 06:08:20,130 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:20,130 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] [2024-11-19 06:08:20,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2024-11-19 06:08:20,130 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2024-11-19 06:08:20,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:20,130 INFO L85 PathProgramCache]: Analyzing trace with hash -535414817, now seen corresponding path program 1 times [2024-11-19 06:08:20,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:20,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320930061] [2024-11-19 06:08:20,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:20,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:20,261 INFO L134 CoverageAnalysis]: Checked inductivity of 10146 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 10032 trivial. 0 not checked. [2024-11-19 06:08:20,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:20,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320930061] [2024-11-19 06:08:20,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320930061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:20,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:20,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:08:20,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780589454] [2024-11-19 06:08:20,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:20,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:08:20,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:20,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:08:20,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:08:20,387 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1235 out of 1478 [2024-11-19 06:08:20,388 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) [2024-11-19 06:08:20,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:20,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1235 of 1478 [2024-11-19 06:08:20,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:20,588 INFO L124 PetriNetUnfolderBase]: 0/818 cut-off events. [2024-11-19 06:08:20,588 INFO L125 PetriNetUnfolderBase]: For 815/815 co-relation queries the response was YES. [2024-11-19 06:08:20,588 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. [2024-11-19 06:08:20,589 INFO L140 encePairwiseOnDemand]: 1473/1478 looper letters, 46 selfloop transitions, 2 changer transitions 3/319 dead transitions. [2024-11-19 06:08:20,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 319 transitions, 968 flow [2024-11-19 06:08:20,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:08:20,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:08:20,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6227 transitions. [2024-11-19 06:08:20,591 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8426251691474966 [2024-11-19 06:08:20,591 INFO L175 Difference]: Start difference. First operand has 420 places, 317 transitions, 862 flow. Second operand 5 states and 6227 transitions. [2024-11-19 06:08:20,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 319 transitions, 968 flow [2024-11-19 06:08:20,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 319 transitions, 967 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:20,595 INFO L231 Difference]: Finished difference. Result has 400 places, 316 transitions, 867 flow [2024-11-19 06:08:20,595 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} [2024-11-19 06:08:20,595 INFO L277 CegarLoopForPetriNet]: 426 programPoint places, -26 predicate places. [2024-11-19 06:08:20,595 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 316 transitions, 867 flow [2024-11-19 06:08:20,596 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) [2024-11-19 06:08:20,596 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:20,596 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] [2024-11-19 06:08:20,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2024-11-19 06:08:20,596 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)] === [2024-11-19 06:08:20,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:20,596 INFO L85 PathProgramCache]: Analyzing trace with hash 285243308, now seen corresponding path program 1 times [2024-11-19 06:08:20,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:20,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804340114] [2024-11-19 06:08:20,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:20,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:20,651 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:08:20,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:20,809 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:08:20,809 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:08:20,809 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 46 remaining) [2024-11-19 06:08:20,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2024-11-19 06:08:20,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2024-11-19 06:08:20,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2024-11-19 06:08:20,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2024-11-19 06:08:20,810 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2024-11-19 06:08:20,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2024-11-19 06:08:20,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2024-11-19 06:08:20,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2024-11-19 06:08:20,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2024-11-19 06:08:20,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2024-11-19 06:08:20,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2024-11-19 06:08:20,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2024-11-19 06:08:20,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2024-11-19 06:08:20,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2024-11-19 06:08:20,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2024-11-19 06:08:20,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2024-11-19 06:08:20,811 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2024-11-19 06:08:20,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2024-11-19 06:08:20,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2024-11-19 06:08:20,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2024-11-19 06:08:20,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2024-11-19 06:08:20,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2024-11-19 06:08:20,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2024-11-19 06:08:20,812 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:08:20,812 WARN L244 ceAbstractionStarter]: 38 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:08:20,812 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 39 thread instances. [2024-11-19 06:08:20,918 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:08:20,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1514 places, 1515 transitions, 6306 flow [2024-11-19 06:08:21,434 INFO L124 PetriNetUnfolderBase]: 202/2591 cut-off events. [2024-11-19 06:08:21,434 INFO L125 PetriNetUnfolderBase]: For 10621/10621 co-relation queries the response was YES. [2024-11-19 06:08:21,478 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. [2024-11-19 06:08:21,478 INFO L82 GeneralOperation]: Start removeDead. Operand has 1514 places, 1515 transitions, 6306 flow [2024-11-19 06:08:21,483 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 435 places, 358 transitions, 2357 flow [2024-11-19 06:08:21,484 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:08:21,484 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:08:21,484 INFO L334 AbstractCegarLoop]: Starting to check reachability of 47 error locations. [2024-11-19 06:08:21,485 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:08:21,485 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:08:21,485 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:08:21,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:21,485 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:21,485 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)] === [2024-11-19 06:08:21,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:21,485 INFO L85 PathProgramCache]: Analyzing trace with hash -194246909, now seen corresponding path program 1 times [2024-11-19 06:08:21,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:21,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252882056] [2024-11-19 06:08:21,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:21,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:21,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:21,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:21,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252882056] [2024-11-19 06:08:21,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252882056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:21,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:21,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:21,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879209787] [2024-11-19 06:08:21,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:21,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:21,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:21,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:21,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:21,627 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1229 out of 1515 [2024-11-19 06:08:21,628 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) [2024-11-19 06:08:21,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:21,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1229 of 1515 [2024-11-19 06:08:21,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:22,092 INFO L124 PetriNetUnfolderBase]: 81/1989 cut-off events. [2024-11-19 06:08:22,092 INFO L125 PetriNetUnfolderBase]: For 11441/11441 co-relation queries the response was YES. [2024-11-19 06:08:22,119 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. [2024-11-19 06:08:22,122 INFO L140 encePairwiseOnDemand]: 1509/1515 looper letters, 49 selfloop transitions, 2 changer transitions 1/354 dead transitions. [2024-11-19 06:08:22,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 354 transitions, 2451 flow [2024-11-19 06:08:22,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:22,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:22,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3742 transitions. [2024-11-19 06:08:22,124 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8233223322332234 [2024-11-19 06:08:22,124 INFO L175 Difference]: Start difference. First operand has 435 places, 358 transitions, 2357 flow. Second operand 3 states and 3742 transitions. [2024-11-19 06:08:22,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 354 transitions, 2451 flow [2024-11-19 06:08:22,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 354 transitions, 1044 flow, removed 703 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:22,140 INFO L231 Difference]: Finished difference. Result has 435 places, 353 transitions, 944 flow [2024-11-19 06:08:22,140 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} [2024-11-19 06:08:22,140 INFO L277 CegarLoopForPetriNet]: 435 programPoint places, 0 predicate places. [2024-11-19 06:08:22,140 INFO L471 AbstractCegarLoop]: Abstraction has has 435 places, 353 transitions, 944 flow [2024-11-19 06:08:22,141 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) [2024-11-19 06:08:22,141 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:22,141 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:22,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2024-11-19 06:08:22,141 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)] === [2024-11-19 06:08:22,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:22,141 INFO L85 PathProgramCache]: Analyzing trace with hash 2073965510, now seen corresponding path program 1 times [2024-11-19 06:08:22,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:22,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169314143] [2024-11-19 06:08:22,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:22,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:22,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:22,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:22,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169314143] [2024-11-19 06:08:22,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169314143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:22,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:22,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:22,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732552997] [2024-11-19 06:08:22,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:22,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:22,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:22,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:22,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:22,264 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1149 out of 1515 [2024-11-19 06:08:22,265 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) [2024-11-19 06:08:22,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:22,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1149 of 1515 [2024-11-19 06:08:22,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:22,676 INFO L124 PetriNetUnfolderBase]: 41/1785 cut-off events. [2024-11-19 06:08:22,676 INFO L125 PetriNetUnfolderBase]: For 857/857 co-relation queries the response was YES. [2024-11-19 06:08:22,698 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. [2024-11-19 06:08:22,699 INFO L140 encePairwiseOnDemand]: 1509/1515 looper letters, 47 selfloop transitions, 1 changer transitions 24/348 dead transitions. [2024-11-19 06:08:22,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 348 transitions, 1034 flow [2024-11-19 06:08:22,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:22,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:22,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3502 transitions. [2024-11-19 06:08:22,701 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7705170517051705 [2024-11-19 06:08:22,701 INFO L175 Difference]: Start difference. First operand has 435 places, 353 transitions, 944 flow. Second operand 3 states and 3502 transitions. [2024-11-19 06:08:22,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 348 transitions, 1034 flow [2024-11-19 06:08:22,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 348 transitions, 1030 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:08:22,705 INFO L231 Difference]: Finished difference. Result has 429 places, 324 transitions, 882 flow [2024-11-19 06:08:22,705 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} [2024-11-19 06:08:22,705 INFO L277 CegarLoopForPetriNet]: 435 programPoint places, -6 predicate places. [2024-11-19 06:08:22,705 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 324 transitions, 882 flow [2024-11-19 06:08:22,705 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) [2024-11-19 06:08:22,705 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:22,705 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] [2024-11-19 06:08:22,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2024-11-19 06:08:22,705 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)] === [2024-11-19 06:08:22,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:22,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1040200721, now seen corresponding path program 1 times [2024-11-19 06:08:22,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:22,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501011172] [2024-11-19 06:08:22,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:22,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:22,832 INFO L134 CoverageAnalysis]: Checked inductivity of 10686 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 10569 trivial. 0 not checked. [2024-11-19 06:08:22,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:22,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501011172] [2024-11-19 06:08:22,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501011172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:22,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:22,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:08:22,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384710024] [2024-11-19 06:08:22,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:22,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:08:22,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:22,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:08:22,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:08:22,943 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1266 out of 1515 [2024-11-19 06:08:22,945 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) [2024-11-19 06:08:22,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:22,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1266 of 1515 [2024-11-19 06:08:22,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:23,259 INFO L124 PetriNetUnfolderBase]: 0/838 cut-off events. [2024-11-19 06:08:23,259 INFO L125 PetriNetUnfolderBase]: For 856/856 co-relation queries the response was YES. [2024-11-19 06:08:23,259 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. [2024-11-19 06:08:23,260 INFO L140 encePairwiseOnDemand]: 1510/1515 looper letters, 47 selfloop transitions, 2 changer transitions 3/326 dead transitions. [2024-11-19 06:08:23,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 326 transitions, 990 flow [2024-11-19 06:08:23,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:08:23,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:08:23,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6383 transitions. [2024-11-19 06:08:23,263 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8426402640264027 [2024-11-19 06:08:23,263 INFO L175 Difference]: Start difference. First operand has 429 places, 324 transitions, 882 flow. Second operand 5 states and 6383 transitions. [2024-11-19 06:08:23,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 326 transitions, 990 flow [2024-11-19 06:08:23,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 326 transitions, 989 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:23,266 INFO L231 Difference]: Finished difference. Result has 409 places, 323 transitions, 887 flow [2024-11-19 06:08:23,266 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} [2024-11-19 06:08:23,266 INFO L277 CegarLoopForPetriNet]: 435 programPoint places, -26 predicate places. [2024-11-19 06:08:23,266 INFO L471 AbstractCegarLoop]: Abstraction has has 409 places, 323 transitions, 887 flow [2024-11-19 06:08:23,267 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) [2024-11-19 06:08:23,267 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:23,267 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] [2024-11-19 06:08:23,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2024-11-19 06:08:23,267 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)] === [2024-11-19 06:08:23,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:23,267 INFO L85 PathProgramCache]: Analyzing trace with hash 407424913, now seen corresponding path program 1 times [2024-11-19 06:08:23,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:23,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284342079] [2024-11-19 06:08:23,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:23,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:23,328 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:08:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:23,492 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:08:23,492 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:08:23,492 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 47 remaining) [2024-11-19 06:08:23,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (45 of 47 remaining) [2024-11-19 06:08:23,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (44 of 47 remaining) [2024-11-19 06:08:23,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (43 of 47 remaining) [2024-11-19 06:08:23,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (42 of 47 remaining) [2024-11-19 06:08:23,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (41 of 47 remaining) [2024-11-19 06:08:23,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 47 remaining) [2024-11-19 06:08:23,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 47 remaining) [2024-11-19 06:08:23,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 47 remaining) [2024-11-19 06:08:23,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 47 remaining) [2024-11-19 06:08:23,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 47 remaining) [2024-11-19 06:08:23,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 47 remaining) [2024-11-19 06:08:23,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 47 remaining) [2024-11-19 06:08:23,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 47 remaining) [2024-11-19 06:08:23,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 47 remaining) [2024-11-19 06:08:23,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 47 remaining) [2024-11-19 06:08:23,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 47 remaining) [2024-11-19 06:08:23,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 47 remaining) [2024-11-19 06:08:23,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 47 remaining) [2024-11-19 06:08:23,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 47 remaining) [2024-11-19 06:08:23,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 47 remaining) [2024-11-19 06:08:23,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 47 remaining) [2024-11-19 06:08:23,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 47 remaining) [2024-11-19 06:08:23,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 47 remaining) [2024-11-19 06:08:23,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 47 remaining) [2024-11-19 06:08:23,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2024-11-19 06:08:23,495 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:08:23,495 WARN L244 ceAbstractionStarter]: 39 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:08:23,495 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 40 thread instances. [2024-11-19 06:08:23,607 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:08:23,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1551 places, 1552 transitions, 6544 flow [2024-11-19 06:08:24,128 INFO L124 PetriNetUnfolderBase]: 207/2655 cut-off events. [2024-11-19 06:08:24,128 INFO L125 PetriNetUnfolderBase]: For 11440/11440 co-relation queries the response was YES. [2024-11-19 06:08:24,170 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. [2024-11-19 06:08:24,170 INFO L82 GeneralOperation]: Start removeDead. Operand has 1551 places, 1552 transitions, 6544 flow [2024-11-19 06:08:24,176 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 444 places, 365 transitions, 2453 flow [2024-11-19 06:08:24,176 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:08:24,176 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:08:24,176 INFO L334 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2024-11-19 06:08:24,177 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:08:24,177 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:08:24,177 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:08:24,177 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:24,177 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:24,177 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)] === [2024-11-19 06:08:24,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:24,177 INFO L85 PathProgramCache]: Analyzing trace with hash -620488957, now seen corresponding path program 1 times [2024-11-19 06:08:24,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:24,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052890330] [2024-11-19 06:08:24,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:24,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:24,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:24,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:24,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:24,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052890330] [2024-11-19 06:08:24,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052890330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:24,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:24,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:24,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122303390] [2024-11-19 06:08:24,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:24,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:24,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:24,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:24,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:24,308 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1259 out of 1552 [2024-11-19 06:08:24,309 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) [2024-11-19 06:08:24,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:24,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1259 of 1552 [2024-11-19 06:08:24,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:24,757 INFO L124 PetriNetUnfolderBase]: 83/2038 cut-off events. [2024-11-19 06:08:24,758 INFO L125 PetriNetUnfolderBase]: For 12301/12301 co-relation queries the response was YES. [2024-11-19 06:08:24,784 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. [2024-11-19 06:08:24,787 INFO L140 encePairwiseOnDemand]: 1546/1552 looper letters, 50 selfloop transitions, 2 changer transitions 1/361 dead transitions. [2024-11-19 06:08:24,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 361 transitions, 2549 flow [2024-11-19 06:08:24,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:24,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:24,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3833 transitions. [2024-11-19 06:08:24,789 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8232388316151202 [2024-11-19 06:08:24,789 INFO L175 Difference]: Start difference. First operand has 444 places, 365 transitions, 2453 flow. Second operand 3 states and 3833 transitions. [2024-11-19 06:08:24,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 361 transitions, 2549 flow [2024-11-19 06:08:24,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 361 transitions, 1066 flow, removed 741 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:24,807 INFO L231 Difference]: Finished difference. Result has 444 places, 360 transitions, 964 flow [2024-11-19 06:08:24,807 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} [2024-11-19 06:08:24,808 INFO L277 CegarLoopForPetriNet]: 444 programPoint places, 0 predicate places. [2024-11-19 06:08:24,808 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 360 transitions, 964 flow [2024-11-19 06:08:24,808 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) [2024-11-19 06:08:24,808 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:24,808 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] [2024-11-19 06:08:24,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2024-11-19 06:08:24,808 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)] === [2024-11-19 06:08:24,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:24,808 INFO L85 PathProgramCache]: Analyzing trace with hash 981944262, now seen corresponding path program 1 times [2024-11-19 06:08:24,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:24,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559076442] [2024-11-19 06:08:24,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:24,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:24,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:24,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:24,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559076442] [2024-11-19 06:08:24,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559076442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:24,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:24,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:24,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801735760] [2024-11-19 06:08:24,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:24,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:24,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:24,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:24,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:24,910 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1177 out of 1552 [2024-11-19 06:08:24,911 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) [2024-11-19 06:08:24,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:24,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1177 of 1552 [2024-11-19 06:08:24,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:25,313 INFO L124 PetriNetUnfolderBase]: 42/1829 cut-off events. [2024-11-19 06:08:25,313 INFO L125 PetriNetUnfolderBase]: For 899/899 co-relation queries the response was YES. [2024-11-19 06:08:25,337 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. [2024-11-19 06:08:25,339 INFO L140 encePairwiseOnDemand]: 1546/1552 looper letters, 48 selfloop transitions, 1 changer transitions 24/355 dead transitions. [2024-11-19 06:08:25,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 355 transitions, 1056 flow [2024-11-19 06:08:25,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:25,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:25,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3587 transitions. [2024-11-19 06:08:25,341 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7704037800687286 [2024-11-19 06:08:25,341 INFO L175 Difference]: Start difference. First operand has 444 places, 360 transitions, 964 flow. Second operand 3 states and 3587 transitions. [2024-11-19 06:08:25,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 355 transitions, 1056 flow [2024-11-19 06:08:25,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 355 transitions, 1052 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:08:25,345 INFO L231 Difference]: Finished difference. Result has 438 places, 331 transitions, 902 flow [2024-11-19 06:08:25,345 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} [2024-11-19 06:08:25,346 INFO L277 CegarLoopForPetriNet]: 444 programPoint places, -6 predicate places. [2024-11-19 06:08:25,346 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 331 transitions, 902 flow [2024-11-19 06:08:25,346 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) [2024-11-19 06:08:25,346 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:25,346 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] [2024-11-19 06:08:25,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2024-11-19 06:08:25,346 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)] === [2024-11-19 06:08:25,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:25,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1789906219, now seen corresponding path program 1 times [2024-11-19 06:08:25,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:25,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650574654] [2024-11-19 06:08:25,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:25,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:25,493 INFO L134 CoverageAnalysis]: Checked inductivity of 11240 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 11120 trivial. 0 not checked. [2024-11-19 06:08:25,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:25,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650574654] [2024-11-19 06:08:25,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650574654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:25,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:25,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:08:25,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876123543] [2024-11-19 06:08:25,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:25,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:08:25,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:25,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:08:25,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:08:25,613 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1297 out of 1552 [2024-11-19 06:08:25,615 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) [2024-11-19 06:08:25,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:25,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1297 of 1552 [2024-11-19 06:08:25,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:25,826 INFO L124 PetriNetUnfolderBase]: 0/858 cut-off events. [2024-11-19 06:08:25,826 INFO L125 PetriNetUnfolderBase]: For 898/898 co-relation queries the response was YES. [2024-11-19 06:08:25,826 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. [2024-11-19 06:08:25,827 INFO L140 encePairwiseOnDemand]: 1547/1552 looper letters, 48 selfloop transitions, 2 changer transitions 3/333 dead transitions. [2024-11-19 06:08:25,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 333 transitions, 1012 flow [2024-11-19 06:08:25,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:08:25,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:08:25,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6539 transitions. [2024-11-19 06:08:25,830 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8426546391752577 [2024-11-19 06:08:25,830 INFO L175 Difference]: Start difference. First operand has 438 places, 331 transitions, 902 flow. Second operand 5 states and 6539 transitions. [2024-11-19 06:08:25,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 333 transitions, 1012 flow [2024-11-19 06:08:25,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 333 transitions, 1011 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:25,833 INFO L231 Difference]: Finished difference. Result has 418 places, 330 transitions, 907 flow [2024-11-19 06:08:25,834 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} [2024-11-19 06:08:25,834 INFO L277 CegarLoopForPetriNet]: 444 programPoint places, -26 predicate places. [2024-11-19 06:08:25,834 INFO L471 AbstractCegarLoop]: Abstraction has has 418 places, 330 transitions, 907 flow [2024-11-19 06:08:25,834 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) [2024-11-19 06:08:25,834 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:25,835 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] [2024-11-19 06:08:25,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2024-11-19 06:08:25,835 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)] === [2024-11-19 06:08:25,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:25,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1461224643, now seen corresponding path program 1 times [2024-11-19 06:08:25,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:25,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589324118] [2024-11-19 06:08:25,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:25,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:25,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:25,898 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:08:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:26,082 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:08:26,082 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:08:26,083 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (47 of 48 remaining) [2024-11-19 06:08:26,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (46 of 48 remaining) [2024-11-19 06:08:26,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (45 of 48 remaining) [2024-11-19 06:08:26,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (44 of 48 remaining) [2024-11-19 06:08:26,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (43 of 48 remaining) [2024-11-19 06:08:26,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (42 of 48 remaining) [2024-11-19 06:08:26,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 48 remaining) [2024-11-19 06:08:26,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 48 remaining) [2024-11-19 06:08:26,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 48 remaining) [2024-11-19 06:08:26,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 48 remaining) [2024-11-19 06:08:26,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 48 remaining) [2024-11-19 06:08:26,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 48 remaining) [2024-11-19 06:08:26,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 48 remaining) [2024-11-19 06:08:26,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 48 remaining) [2024-11-19 06:08:26,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 48 remaining) [2024-11-19 06:08:26,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 48 remaining) [2024-11-19 06:08:26,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 48 remaining) [2024-11-19 06:08:26,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 48 remaining) [2024-11-19 06:08:26,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 48 remaining) [2024-11-19 06:08:26,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 48 remaining) [2024-11-19 06:08:26,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 48 remaining) [2024-11-19 06:08:26,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 48 remaining) [2024-11-19 06:08:26,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 48 remaining) [2024-11-19 06:08:26,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 48 remaining) [2024-11-19 06:08:26,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 48 remaining) [2024-11-19 06:08:26,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 48 remaining) [2024-11-19 06:08:26,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 48 remaining) [2024-11-19 06:08:26,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 48 remaining) [2024-11-19 06:08:26,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 48 remaining) [2024-11-19 06:08:26,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 48 remaining) [2024-11-19 06:08:26,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 48 remaining) [2024-11-19 06:08:26,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 48 remaining) [2024-11-19 06:08:26,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 48 remaining) [2024-11-19 06:08:26,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 48 remaining) [2024-11-19 06:08:26,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 48 remaining) [2024-11-19 06:08:26,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 48 remaining) [2024-11-19 06:08:26,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 48 remaining) [2024-11-19 06:08:26,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 48 remaining) [2024-11-19 06:08:26,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 48 remaining) [2024-11-19 06:08:26,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 48 remaining) [2024-11-19 06:08:26,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 48 remaining) [2024-11-19 06:08:26,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 48 remaining) [2024-11-19 06:08:26,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 48 remaining) [2024-11-19 06:08:26,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 48 remaining) [2024-11-19 06:08:26,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 48 remaining) [2024-11-19 06:08:26,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 48 remaining) [2024-11-19 06:08:26,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 48 remaining) [2024-11-19 06:08:26,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 48 remaining) [2024-11-19 06:08:26,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2024-11-19 06:08:26,085 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:08:26,085 WARN L244 ceAbstractionStarter]: 40 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:08:26,085 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 41 thread instances. [2024-11-19 06:08:26,207 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:08:26,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1588 places, 1589 transitions, 6786 flow [2024-11-19 06:08:26,889 INFO L124 PetriNetUnfolderBase]: 212/2719 cut-off events. [2024-11-19 06:08:26,890 INFO L125 PetriNetUnfolderBase]: For 12300/12300 co-relation queries the response was YES. [2024-11-19 06:08:26,933 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. [2024-11-19 06:08:26,933 INFO L82 GeneralOperation]: Start removeDead. Operand has 1588 places, 1589 transitions, 6786 flow [2024-11-19 06:08:26,939 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 453 places, 372 transitions, 2551 flow [2024-11-19 06:08:26,940 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:08:26,940 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:08:26,940 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2024-11-19 06:08:26,941 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:08:26,941 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:08:26,941 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:08:26,941 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:26,941 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:26,941 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)] === [2024-11-19 06:08:26,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:26,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1095635965, now seen corresponding path program 1 times [2024-11-19 06:08:26,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:26,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522439177] [2024-11-19 06:08:26,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:26,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:26,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:26,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:26,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:26,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522439177] [2024-11-19 06:08:26,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522439177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:26,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:26,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:26,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756081262] [2024-11-19 06:08:26,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:26,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:26,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:26,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:26,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:27,096 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1289 out of 1589 [2024-11-19 06:08:27,097 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) [2024-11-19 06:08:27,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:27,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1289 of 1589 [2024-11-19 06:08:27,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:27,582 INFO L124 PetriNetUnfolderBase]: 85/2087 cut-off events. [2024-11-19 06:08:27,582 INFO L125 PetriNetUnfolderBase]: For 13203/13203 co-relation queries the response was YES. [2024-11-19 06:08:27,610 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. [2024-11-19 06:08:27,614 INFO L140 encePairwiseOnDemand]: 1583/1589 looper letters, 51 selfloop transitions, 2 changer transitions 1/368 dead transitions. [2024-11-19 06:08:27,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 368 transitions, 2649 flow [2024-11-19 06:08:27,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:27,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:27,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3924 transitions. [2024-11-19 06:08:27,616 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8231592196349906 [2024-11-19 06:08:27,616 INFO L175 Difference]: Start difference. First operand has 453 places, 372 transitions, 2551 flow. Second operand 3 states and 3924 transitions. [2024-11-19 06:08:27,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 368 transitions, 2649 flow [2024-11-19 06:08:27,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 368 transitions, 1088 flow, removed 780 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:27,633 INFO L231 Difference]: Finished difference. Result has 453 places, 367 transitions, 984 flow [2024-11-19 06:08:27,633 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} [2024-11-19 06:08:27,633 INFO L277 CegarLoopForPetriNet]: 453 programPoint places, 0 predicate places. [2024-11-19 06:08:27,634 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 367 transitions, 984 flow [2024-11-19 06:08:27,634 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) [2024-11-19 06:08:27,634 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:27,634 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:27,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2024-11-19 06:08:27,634 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)] === [2024-11-19 06:08:27,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:27,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1009582598, now seen corresponding path program 1 times [2024-11-19 06:08:27,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:27,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354451947] [2024-11-19 06:08:27,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:27,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:27,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:27,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:27,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354451947] [2024-11-19 06:08:27,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354451947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:27,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:27,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:27,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146576611] [2024-11-19 06:08:27,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:27,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:27,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:27,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:27,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:27,740 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1205 out of 1589 [2024-11-19 06:08:27,742 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) [2024-11-19 06:08:27,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:27,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1205 of 1589 [2024-11-19 06:08:27,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:28,159 INFO L124 PetriNetUnfolderBase]: 43/1873 cut-off events. [2024-11-19 06:08:28,159 INFO L125 PetriNetUnfolderBase]: For 942/942 co-relation queries the response was YES. [2024-11-19 06:08:28,184 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. [2024-11-19 06:08:28,186 INFO L140 encePairwiseOnDemand]: 1583/1589 looper letters, 49 selfloop transitions, 1 changer transitions 24/362 dead transitions. [2024-11-19 06:08:28,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 362 transitions, 1078 flow [2024-11-19 06:08:28,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:28,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:28,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3672 transitions. [2024-11-19 06:08:28,187 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7702957835116425 [2024-11-19 06:08:28,187 INFO L175 Difference]: Start difference. First operand has 453 places, 367 transitions, 984 flow. Second operand 3 states and 3672 transitions. [2024-11-19 06:08:28,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 362 transitions, 1078 flow [2024-11-19 06:08:28,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 362 transitions, 1074 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:08:28,191 INFO L231 Difference]: Finished difference. Result has 447 places, 338 transitions, 922 flow [2024-11-19 06:08:28,191 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} [2024-11-19 06:08:28,191 INFO L277 CegarLoopForPetriNet]: 453 programPoint places, -6 predicate places. [2024-11-19 06:08:28,191 INFO L471 AbstractCegarLoop]: Abstraction has has 447 places, 338 transitions, 922 flow [2024-11-19 06:08:28,192 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) [2024-11-19 06:08:28,192 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:28,192 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] [2024-11-19 06:08:28,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2024-11-19 06:08:28,192 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)] === [2024-11-19 06:08:28,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:28,192 INFO L85 PathProgramCache]: Analyzing trace with hash 517872883, now seen corresponding path program 1 times [2024-11-19 06:08:28,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:28,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485943475] [2024-11-19 06:08:28,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:28,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:28,329 INFO L134 CoverageAnalysis]: Checked inductivity of 11808 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 11685 trivial. 0 not checked. [2024-11-19 06:08:28,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:28,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485943475] [2024-11-19 06:08:28,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485943475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:28,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:28,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:08:28,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664000578] [2024-11-19 06:08:28,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:28,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:08:28,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:28,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:08:28,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:08:28,410 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1328 out of 1589 [2024-11-19 06:08:28,412 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) [2024-11-19 06:08:28,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:28,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1328 of 1589 [2024-11-19 06:08:28,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:28,651 INFO L124 PetriNetUnfolderBase]: 0/878 cut-off events. [2024-11-19 06:08:28,651 INFO L125 PetriNetUnfolderBase]: For 941/941 co-relation queries the response was YES. [2024-11-19 06:08:28,651 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. [2024-11-19 06:08:28,652 INFO L140 encePairwiseOnDemand]: 1584/1589 looper letters, 49 selfloop transitions, 2 changer transitions 3/340 dead transitions. [2024-11-19 06:08:28,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 340 transitions, 1034 flow [2024-11-19 06:08:28,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:08:28,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:08:28,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6695 transitions. [2024-11-19 06:08:28,655 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8426683448709881 [2024-11-19 06:08:28,655 INFO L175 Difference]: Start difference. First operand has 447 places, 338 transitions, 922 flow. Second operand 5 states and 6695 transitions. [2024-11-19 06:08:28,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 340 transitions, 1034 flow [2024-11-19 06:08:28,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 340 transitions, 1033 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:28,659 INFO L231 Difference]: Finished difference. Result has 427 places, 337 transitions, 927 flow [2024-11-19 06:08:28,659 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} [2024-11-19 06:08:28,659 INFO L277 CegarLoopForPetriNet]: 453 programPoint places, -26 predicate places. [2024-11-19 06:08:28,659 INFO L471 AbstractCegarLoop]: Abstraction has has 427 places, 337 transitions, 927 flow [2024-11-19 06:08:28,660 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) [2024-11-19 06:08:28,660 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:28,660 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] [2024-11-19 06:08:28,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2024-11-19 06:08:28,660 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)] === [2024-11-19 06:08:28,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:28,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1833571760, now seen corresponding path program 1 times [2024-11-19 06:08:28,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:28,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495827228] [2024-11-19 06:08:28,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:28,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:28,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:28,728 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:08:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:28,915 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:08:28,916 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:08:28,916 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2024-11-19 06:08:28,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2024-11-19 06:08:28,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2024-11-19 06:08:28,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2024-11-19 06:08:28,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2024-11-19 06:08:28,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2024-11-19 06:08:28,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (42 of 49 remaining) [2024-11-19 06:08:28,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2024-11-19 06:08:28,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2024-11-19 06:08:28,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2024-11-19 06:08:28,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2024-11-19 06:08:28,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2024-11-19 06:08:28,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2024-11-19 06:08:28,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2024-11-19 06:08:28,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2024-11-19 06:08:28,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2024-11-19 06:08:28,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2024-11-19 06:08:28,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2024-11-19 06:08:28,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2024-11-19 06:08:28,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2024-11-19 06:08:28,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2024-11-19 06:08:28,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2024-11-19 06:08:28,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2024-11-19 06:08:28,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2024-11-19 06:08:28,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2024-11-19 06:08:28,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2024-11-19 06:08:28,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2024-11-19 06:08:28,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2024-11-19 06:08:28,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2024-11-19 06:08:28,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2024-11-19 06:08:28,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2024-11-19 06:08:28,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2024-11-19 06:08:28,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2024-11-19 06:08:28,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2024-11-19 06:08:28,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2024-11-19 06:08:28,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2024-11-19 06:08:28,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2024-11-19 06:08:28,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2024-11-19 06:08:28,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2024-11-19 06:08:28,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2024-11-19 06:08:28,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2024-11-19 06:08:28,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2024-11-19 06:08:28,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2024-11-19 06:08:28,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2024-11-19 06:08:28,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2024-11-19 06:08:28,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2024-11-19 06:08:28,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2024-11-19 06:08:28,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2024-11-19 06:08:28,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2024-11-19 06:08:28,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2024-11-19 06:08:28,920 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:08:28,920 WARN L244 ceAbstractionStarter]: 41 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:08:28,920 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 42 thread instances. [2024-11-19 06:08:29,050 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:08:29,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1625 places, 1626 transitions, 7032 flow [2024-11-19 06:08:29,856 INFO L124 PetriNetUnfolderBase]: 217/2783 cut-off events. [2024-11-19 06:08:29,856 INFO L125 PetriNetUnfolderBase]: For 13202/13202 co-relation queries the response was YES. [2024-11-19 06:08:29,884 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. [2024-11-19 06:08:29,884 INFO L82 GeneralOperation]: Start removeDead. Operand has 1625 places, 1626 transitions, 7032 flow [2024-11-19 06:08:29,891 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 462 places, 379 transitions, 2651 flow [2024-11-19 06:08:29,891 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:08:29,892 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:08:29,892 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-19 06:08:29,893 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:08:29,893 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:08:29,893 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:08:29,893 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:29,893 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:29,893 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)] === [2024-11-19 06:08:29,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:29,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1619687933, now seen corresponding path program 1 times [2024-11-19 06:08:29,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:29,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926885150] [2024-11-19 06:08:29,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:29,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:29,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:29,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:29,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:29,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926885150] [2024-11-19 06:08:29,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926885150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:29,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:29,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:29,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482293136] [2024-11-19 06:08:29,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:29,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:29,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:29,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:29,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:30,071 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1319 out of 1626 [2024-11-19 06:08:30,073 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) [2024-11-19 06:08:30,073 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:30,073 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1319 of 1626 [2024-11-19 06:08:30,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:30,735 INFO L124 PetriNetUnfolderBase]: 87/2136 cut-off events. [2024-11-19 06:08:30,735 INFO L125 PetriNetUnfolderBase]: For 14148/14148 co-relation queries the response was YES. [2024-11-19 06:08:30,767 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. [2024-11-19 06:08:30,772 INFO L140 encePairwiseOnDemand]: 1620/1626 looper letters, 52 selfloop transitions, 2 changer transitions 1/375 dead transitions. [2024-11-19 06:08:30,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 375 transitions, 2751 flow [2024-11-19 06:08:30,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:30,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:30,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4015 transitions. [2024-11-19 06:08:30,773 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8230832308323083 [2024-11-19 06:08:30,773 INFO L175 Difference]: Start difference. First operand has 462 places, 379 transitions, 2651 flow. Second operand 3 states and 4015 transitions. [2024-11-19 06:08:30,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 375 transitions, 2751 flow [2024-11-19 06:08:30,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 375 transitions, 1110 flow, removed 820 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:30,794 INFO L231 Difference]: Finished difference. Result has 462 places, 374 transitions, 1004 flow [2024-11-19 06:08:30,795 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} [2024-11-19 06:08:30,795 INFO L277 CegarLoopForPetriNet]: 462 programPoint places, 0 predicate places. [2024-11-19 06:08:30,795 INFO L471 AbstractCegarLoop]: Abstraction has has 462 places, 374 transitions, 1004 flow [2024-11-19 06:08:30,795 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) [2024-11-19 06:08:30,795 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:30,795 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] [2024-11-19 06:08:30,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2024-11-19 06:08:30,795 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)] === [2024-11-19 06:08:30,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:30,796 INFO L85 PathProgramCache]: Analyzing trace with hash -2138086778, now seen corresponding path program 1 times [2024-11-19 06:08:30,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:30,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016192748] [2024-11-19 06:08:30,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:30,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:30,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:30,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:30,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016192748] [2024-11-19 06:08:30,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016192748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:30,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:30,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:30,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568307753] [2024-11-19 06:08:30,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:30,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:30,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:30,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:30,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:30,900 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1233 out of 1626 [2024-11-19 06:08:30,902 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) [2024-11-19 06:08:30,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:30,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1233 of 1626 [2024-11-19 06:08:30,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:31,335 INFO L124 PetriNetUnfolderBase]: 44/1917 cut-off events. [2024-11-19 06:08:31,335 INFO L125 PetriNetUnfolderBase]: For 986/986 co-relation queries the response was YES. [2024-11-19 06:08:31,361 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. [2024-11-19 06:08:31,362 INFO L140 encePairwiseOnDemand]: 1620/1626 looper letters, 50 selfloop transitions, 1 changer transitions 24/369 dead transitions. [2024-11-19 06:08:31,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 369 transitions, 1100 flow [2024-11-19 06:08:31,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:31,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:31,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3757 transitions. [2024-11-19 06:08:31,364 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7701927019270193 [2024-11-19 06:08:31,364 INFO L175 Difference]: Start difference. First operand has 462 places, 374 transitions, 1004 flow. Second operand 3 states and 3757 transitions. [2024-11-19 06:08:31,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 369 transitions, 1100 flow [2024-11-19 06:08:31,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 369 transitions, 1096 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:08:31,368 INFO L231 Difference]: Finished difference. Result has 456 places, 345 transitions, 942 flow [2024-11-19 06:08:31,368 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} [2024-11-19 06:08:31,369 INFO L277 CegarLoopForPetriNet]: 462 programPoint places, -6 predicate places. [2024-11-19 06:08:31,369 INFO L471 AbstractCegarLoop]: Abstraction has has 456 places, 345 transitions, 942 flow [2024-11-19 06:08:31,369 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) [2024-11-19 06:08:31,369 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:31,369 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] [2024-11-19 06:08:31,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2024-11-19 06:08:31,369 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)] === [2024-11-19 06:08:31,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:31,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1965073241, now seen corresponding path program 1 times [2024-11-19 06:08:31,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:31,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783291243] [2024-11-19 06:08:31,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:31,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:31,513 INFO L134 CoverageAnalysis]: Checked inductivity of 12390 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 12264 trivial. 0 not checked. [2024-11-19 06:08:31,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:31,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783291243] [2024-11-19 06:08:31,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783291243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:31,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:31,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:08:31,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621424370] [2024-11-19 06:08:31,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:31,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:08:31,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:31,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:08:31,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:08:31,610 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1359 out of 1626 [2024-11-19 06:08:31,612 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) [2024-11-19 06:08:31,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:31,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1359 of 1626 [2024-11-19 06:08:31,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:31,836 INFO L124 PetriNetUnfolderBase]: 0/898 cut-off events. [2024-11-19 06:08:31,836 INFO L125 PetriNetUnfolderBase]: For 985/985 co-relation queries the response was YES. [2024-11-19 06:08:31,837 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. [2024-11-19 06:08:31,838 INFO L140 encePairwiseOnDemand]: 1621/1626 looper letters, 50 selfloop transitions, 2 changer transitions 3/347 dead transitions. [2024-11-19 06:08:31,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 347 transitions, 1056 flow [2024-11-19 06:08:31,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:08:31,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:08:31,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6851 transitions. [2024-11-19 06:08:31,840 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8426814268142682 [2024-11-19 06:08:31,840 INFO L175 Difference]: Start difference. First operand has 456 places, 345 transitions, 942 flow. Second operand 5 states and 6851 transitions. [2024-11-19 06:08:31,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 347 transitions, 1056 flow [2024-11-19 06:08:31,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 347 transitions, 1055 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:31,844 INFO L231 Difference]: Finished difference. Result has 436 places, 344 transitions, 947 flow [2024-11-19 06:08:31,844 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} [2024-11-19 06:08:31,845 INFO L277 CegarLoopForPetriNet]: 462 programPoint places, -26 predicate places. [2024-11-19 06:08:31,845 INFO L471 AbstractCegarLoop]: Abstraction has has 436 places, 344 transitions, 947 flow [2024-11-19 06:08:31,845 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) [2024-11-19 06:08:31,845 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:31,845 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] [2024-11-19 06:08:31,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2024-11-19 06:08:31,846 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)] === [2024-11-19 06:08:31,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:31,846 INFO L85 PathProgramCache]: Analyzing trace with hash -2032767894, now seen corresponding path program 1 times [2024-11-19 06:08:31,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:31,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399968499] [2024-11-19 06:08:31,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:31,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:31,922 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:08:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:32,122 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:08:32,122 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:08:32,123 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (49 of 50 remaining) [2024-11-19 06:08:32,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (48 of 50 remaining) [2024-11-19 06:08:32,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (47 of 50 remaining) [2024-11-19 06:08:32,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (46 of 50 remaining) [2024-11-19 06:08:32,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (45 of 50 remaining) [2024-11-19 06:08:32,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (44 of 50 remaining) [2024-11-19 06:08:32,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 50 remaining) [2024-11-19 06:08:32,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 50 remaining) [2024-11-19 06:08:32,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 50 remaining) [2024-11-19 06:08:32,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 50 remaining) [2024-11-19 06:08:32,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 50 remaining) [2024-11-19 06:08:32,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 50 remaining) [2024-11-19 06:08:32,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 50 remaining) [2024-11-19 06:08:32,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 50 remaining) [2024-11-19 06:08:32,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 50 remaining) [2024-11-19 06:08:32,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 50 remaining) [2024-11-19 06:08:32,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 50 remaining) [2024-11-19 06:08:32,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 50 remaining) [2024-11-19 06:08:32,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 50 remaining) [2024-11-19 06:08:32,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 50 remaining) [2024-11-19 06:08:32,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 50 remaining) [2024-11-19 06:08:32,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 50 remaining) [2024-11-19 06:08:32,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 50 remaining) [2024-11-19 06:08:32,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 50 remaining) [2024-11-19 06:08:32,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 50 remaining) [2024-11-19 06:08:32,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 50 remaining) [2024-11-19 06:08:32,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 50 remaining) [2024-11-19 06:08:32,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 50 remaining) [2024-11-19 06:08:32,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2024-11-19 06:08:32,125 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:08:32,125 WARN L244 ceAbstractionStarter]: 42 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:08:32,125 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 43 thread instances. [2024-11-19 06:08:32,240 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:08:32,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1662 places, 1663 transitions, 7282 flow [2024-11-19 06:08:32,862 INFO L124 PetriNetUnfolderBase]: 222/2847 cut-off events. [2024-11-19 06:08:32,862 INFO L125 PetriNetUnfolderBase]: For 14147/14147 co-relation queries the response was YES. [2024-11-19 06:08:32,909 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. [2024-11-19 06:08:32,909 INFO L82 GeneralOperation]: Start removeDead. Operand has 1662 places, 1663 transitions, 7282 flow [2024-11-19 06:08:32,915 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 471 places, 386 transitions, 2753 flow [2024-11-19 06:08:32,915 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:08:32,916 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:08:32,916 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-11-19 06:08:32,916 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:08:32,916 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:08:32,917 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:08:32,917 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:32,917 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:32,917 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)] === [2024-11-19 06:08:32,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:32,917 INFO L85 PathProgramCache]: Analyzing trace with hash 2102322435, now seen corresponding path program 1 times [2024-11-19 06:08:32,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:32,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391953273] [2024-11-19 06:08:32,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:32,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:32,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:32,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:32,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:32,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391953273] [2024-11-19 06:08:32,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391953273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:32,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:32,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:32,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667529865] [2024-11-19 06:08:32,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:32,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:32,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:32,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:32,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:33,063 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1349 out of 1663 [2024-11-19 06:08:33,064 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) [2024-11-19 06:08:33,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:33,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1349 of 1663 [2024-11-19 06:08:33,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:33,715 INFO L124 PetriNetUnfolderBase]: 89/2185 cut-off events. [2024-11-19 06:08:33,715 INFO L125 PetriNetUnfolderBase]: For 15137/15137 co-relation queries the response was YES. [2024-11-19 06:08:33,737 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. [2024-11-19 06:08:33,740 INFO L140 encePairwiseOnDemand]: 1657/1663 looper letters, 53 selfloop transitions, 2 changer transitions 1/382 dead transitions. [2024-11-19 06:08:33,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 382 transitions, 2855 flow [2024-11-19 06:08:33,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:33,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:33,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4106 transitions. [2024-11-19 06:08:33,742 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8230106233714172 [2024-11-19 06:08:33,742 INFO L175 Difference]: Start difference. First operand has 471 places, 386 transitions, 2753 flow. Second operand 3 states and 4106 transitions. [2024-11-19 06:08:33,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 382 transitions, 2855 flow [2024-11-19 06:08:33,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 382 transitions, 1132 flow, removed 861 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:33,763 INFO L231 Difference]: Finished difference. Result has 471 places, 381 transitions, 1024 flow [2024-11-19 06:08:33,763 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} [2024-11-19 06:08:33,763 INFO L277 CegarLoopForPetriNet]: 471 programPoint places, 0 predicate places. [2024-11-19 06:08:33,763 INFO L471 AbstractCegarLoop]: Abstraction has has 471 places, 381 transitions, 1024 flow [2024-11-19 06:08:33,763 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) [2024-11-19 06:08:33,763 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:33,763 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] [2024-11-19 06:08:33,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2024-11-19 06:08:33,764 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)] === [2024-11-19 06:08:33,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:33,764 INFO L85 PathProgramCache]: Analyzing trace with hash 128870726, now seen corresponding path program 1 times [2024-11-19 06:08:33,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:33,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039511366] [2024-11-19 06:08:33,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:33,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:33,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:33,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:33,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039511366] [2024-11-19 06:08:33,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039511366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:33,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:33,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:33,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065571453] [2024-11-19 06:08:33,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:33,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:33,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:33,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:33,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:33,876 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1261 out of 1663 [2024-11-19 06:08:33,877 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) [2024-11-19 06:08:33,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:33,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1261 of 1663 [2024-11-19 06:08:33,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:34,315 INFO L124 PetriNetUnfolderBase]: 45/1961 cut-off events. [2024-11-19 06:08:34,315 INFO L125 PetriNetUnfolderBase]: For 1031/1031 co-relation queries the response was YES. [2024-11-19 06:08:34,341 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. [2024-11-19 06:08:34,343 INFO L140 encePairwiseOnDemand]: 1657/1663 looper letters, 51 selfloop transitions, 1 changer transitions 24/376 dead transitions. [2024-11-19 06:08:34,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 376 transitions, 1122 flow [2024-11-19 06:08:34,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:34,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:34,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3842 transitions. [2024-11-19 06:08:34,345 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7700942072559631 [2024-11-19 06:08:34,345 INFO L175 Difference]: Start difference. First operand has 471 places, 381 transitions, 1024 flow. Second operand 3 states and 3842 transitions. [2024-11-19 06:08:34,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 376 transitions, 1122 flow [2024-11-19 06:08:34,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 376 transitions, 1118 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:08:34,349 INFO L231 Difference]: Finished difference. Result has 465 places, 352 transitions, 962 flow [2024-11-19 06:08:34,349 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} [2024-11-19 06:08:34,350 INFO L277 CegarLoopForPetriNet]: 471 programPoint places, -6 predicate places. [2024-11-19 06:08:34,350 INFO L471 AbstractCegarLoop]: Abstraction has has 465 places, 352 transitions, 962 flow [2024-11-19 06:08:34,350 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) [2024-11-19 06:08:34,350 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:34,350 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] [2024-11-19 06:08:34,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2024-11-19 06:08:34,350 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)] === [2024-11-19 06:08:34,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:34,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1754731097, now seen corresponding path program 1 times [2024-11-19 06:08:34,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:34,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280004192] [2024-11-19 06:08:34,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:34,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:34,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:34,504 INFO L134 CoverageAnalysis]: Checked inductivity of 12986 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 12857 trivial. 0 not checked. [2024-11-19 06:08:34,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:34,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280004192] [2024-11-19 06:08:34,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280004192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:34,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:34,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:08:34,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973936795] [2024-11-19 06:08:34,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:34,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:08:34,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:34,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:08:34,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:08:34,594 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1390 out of 1663 [2024-11-19 06:08:34,596 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) [2024-11-19 06:08:34,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:34,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1390 of 1663 [2024-11-19 06:08:34,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:34,819 INFO L124 PetriNetUnfolderBase]: 0/918 cut-off events. [2024-11-19 06:08:34,820 INFO L125 PetriNetUnfolderBase]: For 1030/1030 co-relation queries the response was YES. [2024-11-19 06:08:34,820 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. [2024-11-19 06:08:34,820 INFO L140 encePairwiseOnDemand]: 1658/1663 looper letters, 51 selfloop transitions, 2 changer transitions 3/354 dead transitions. [2024-11-19 06:08:34,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 354 transitions, 1078 flow [2024-11-19 06:08:34,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:08:34,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:08:34,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7007 transitions. [2024-11-19 06:08:34,823 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.842693926638605 [2024-11-19 06:08:34,823 INFO L175 Difference]: Start difference. First operand has 465 places, 352 transitions, 962 flow. Second operand 5 states and 7007 transitions. [2024-11-19 06:08:34,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 354 transitions, 1078 flow [2024-11-19 06:08:34,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 354 transitions, 1077 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:34,826 INFO L231 Difference]: Finished difference. Result has 445 places, 351 transitions, 967 flow [2024-11-19 06:08:34,827 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} [2024-11-19 06:08:34,827 INFO L277 CegarLoopForPetriNet]: 471 programPoint places, -26 predicate places. [2024-11-19 06:08:34,827 INFO L471 AbstractCegarLoop]: Abstraction has has 445 places, 351 transitions, 967 flow [2024-11-19 06:08:34,827 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) [2024-11-19 06:08:34,827 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:34,827 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] [2024-11-19 06:08:34,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2024-11-19 06:08:34,828 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)] === [2024-11-19 06:08:34,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:34,828 INFO L85 PathProgramCache]: Analyzing trace with hash -638570197, now seen corresponding path program 1 times [2024-11-19 06:08:34,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:34,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538768027] [2024-11-19 06:08:34,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:34,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:34,901 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:08:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:35,116 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:08:35,116 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:08:35,116 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 51 remaining) [2024-11-19 06:08:35,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (49 of 51 remaining) [2024-11-19 06:08:35,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (48 of 51 remaining) [2024-11-19 06:08:35,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (47 of 51 remaining) [2024-11-19 06:08:35,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (46 of 51 remaining) [2024-11-19 06:08:35,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (45 of 51 remaining) [2024-11-19 06:08:35,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (44 of 51 remaining) [2024-11-19 06:08:35,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 51 remaining) [2024-11-19 06:08:35,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 51 remaining) [2024-11-19 06:08:35,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 51 remaining) [2024-11-19 06:08:35,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 51 remaining) [2024-11-19 06:08:35,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 51 remaining) [2024-11-19 06:08:35,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 51 remaining) [2024-11-19 06:08:35,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 51 remaining) [2024-11-19 06:08:35,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 51 remaining) [2024-11-19 06:08:35,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 51 remaining) [2024-11-19 06:08:35,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 51 remaining) [2024-11-19 06:08:35,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 51 remaining) [2024-11-19 06:08:35,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 51 remaining) [2024-11-19 06:08:35,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 51 remaining) [2024-11-19 06:08:35,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 51 remaining) [2024-11-19 06:08:35,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 51 remaining) [2024-11-19 06:08:35,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 51 remaining) [2024-11-19 06:08:35,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 51 remaining) [2024-11-19 06:08:35,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 51 remaining) [2024-11-19 06:08:35,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 51 remaining) [2024-11-19 06:08:35,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 51 remaining) [2024-11-19 06:08:35,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 51 remaining) [2024-11-19 06:08:35,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 51 remaining) [2024-11-19 06:08:35,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 51 remaining) [2024-11-19 06:08:35,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 51 remaining) [2024-11-19 06:08:35,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 51 remaining) [2024-11-19 06:08:35,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 51 remaining) [2024-11-19 06:08:35,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 51 remaining) [2024-11-19 06:08:35,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 51 remaining) [2024-11-19 06:08:35,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 51 remaining) [2024-11-19 06:08:35,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 51 remaining) [2024-11-19 06:08:35,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 51 remaining) [2024-11-19 06:08:35,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 51 remaining) [2024-11-19 06:08:35,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 51 remaining) [2024-11-19 06:08:35,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 51 remaining) [2024-11-19 06:08:35,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 51 remaining) [2024-11-19 06:08:35,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 51 remaining) [2024-11-19 06:08:35,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 51 remaining) [2024-11-19 06:08:35,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 51 remaining) [2024-11-19 06:08:35,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 51 remaining) [2024-11-19 06:08:35,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 51 remaining) [2024-11-19 06:08:35,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 51 remaining) [2024-11-19 06:08:35,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 51 remaining) [2024-11-19 06:08:35,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 51 remaining) [2024-11-19 06:08:35,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 51 remaining) [2024-11-19 06:08:35,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2024-11-19 06:08:35,120 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:08:35,120 WARN L244 ceAbstractionStarter]: 43 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:08:35,120 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 44 thread instances. [2024-11-19 06:08:35,239 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:08:35,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1699 places, 1700 transitions, 7536 flow [2024-11-19 06:08:35,979 INFO L124 PetriNetUnfolderBase]: 227/2911 cut-off events. [2024-11-19 06:08:35,979 INFO L125 PetriNetUnfolderBase]: For 15136/15136 co-relation queries the response was YES. [2024-11-19 06:08:36,017 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. [2024-11-19 06:08:36,017 INFO L82 GeneralOperation]: Start removeDead. Operand has 1699 places, 1700 transitions, 7536 flow [2024-11-19 06:08:36,023 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 480 places, 393 transitions, 2857 flow [2024-11-19 06:08:36,023 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:08:36,023 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:08:36,023 INFO L334 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2024-11-19 06:08:36,024 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:08:36,024 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:08:36,024 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:08:36,024 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:36,024 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:36,024 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)] === [2024-11-19 06:08:36,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:36,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1480460547, now seen corresponding path program 1 times [2024-11-19 06:08:36,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:36,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942627154] [2024-11-19 06:08:36,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:36,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:36,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:36,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:36,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942627154] [2024-11-19 06:08:36,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942627154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:36,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:36,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:36,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54669406] [2024-11-19 06:08:36,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:36,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:36,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:36,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:36,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:36,173 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1379 out of 1700 [2024-11-19 06:08:36,174 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) [2024-11-19 06:08:36,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:36,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1379 of 1700 [2024-11-19 06:08:36,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:36,728 INFO L124 PetriNetUnfolderBase]: 91/2234 cut-off events. [2024-11-19 06:08:36,728 INFO L125 PetriNetUnfolderBase]: For 16171/16171 co-relation queries the response was YES. [2024-11-19 06:08:36,761 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. [2024-11-19 06:08:36,765 INFO L140 encePairwiseOnDemand]: 1694/1700 looper letters, 54 selfloop transitions, 2 changer transitions 1/389 dead transitions. [2024-11-19 06:08:36,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 389 transitions, 2961 flow [2024-11-19 06:08:36,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:36,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:36,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4197 transitions. [2024-11-19 06:08:36,767 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8229411764705883 [2024-11-19 06:08:36,767 INFO L175 Difference]: Start difference. First operand has 480 places, 393 transitions, 2857 flow. Second operand 3 states and 4197 transitions. [2024-11-19 06:08:36,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 389 transitions, 2961 flow [2024-11-19 06:08:36,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 480 places, 389 transitions, 1154 flow, removed 903 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:36,787 INFO L231 Difference]: Finished difference. Result has 480 places, 388 transitions, 1044 flow [2024-11-19 06:08:36,787 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} [2024-11-19 06:08:36,788 INFO L277 CegarLoopForPetriNet]: 480 programPoint places, 0 predicate places. [2024-11-19 06:08:36,788 INFO L471 AbstractCegarLoop]: Abstraction has has 480 places, 388 transitions, 1044 flow [2024-11-19 06:08:36,788 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) [2024-11-19 06:08:36,788 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:36,788 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] [2024-11-19 06:08:36,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2024-11-19 06:08:36,788 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)] === [2024-11-19 06:08:36,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:36,788 INFO L85 PathProgramCache]: Analyzing trace with hash -779479482, now seen corresponding path program 1 times [2024-11-19 06:08:36,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:36,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067936381] [2024-11-19 06:08:36,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:36,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:36,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:36,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:36,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067936381] [2024-11-19 06:08:36,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067936381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:36,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:36,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:36,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651506850] [2024-11-19 06:08:36,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:36,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:36,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:36,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:36,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:36,910 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1289 out of 1700 [2024-11-19 06:08:36,911 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) [2024-11-19 06:08:36,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:36,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1289 of 1700 [2024-11-19 06:08:36,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:37,414 INFO L124 PetriNetUnfolderBase]: 46/2005 cut-off events. [2024-11-19 06:08:37,414 INFO L125 PetriNetUnfolderBase]: For 1077/1077 co-relation queries the response was YES. [2024-11-19 06:08:37,446 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. [2024-11-19 06:08:37,447 INFO L140 encePairwiseOnDemand]: 1694/1700 looper letters, 52 selfloop transitions, 1 changer transitions 24/383 dead transitions. [2024-11-19 06:08:37,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 383 transitions, 1144 flow [2024-11-19 06:08:37,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:37,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:37,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3927 transitions. [2024-11-19 06:08:37,450 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.77 [2024-11-19 06:08:37,450 INFO L175 Difference]: Start difference. First operand has 480 places, 388 transitions, 1044 flow. Second operand 3 states and 3927 transitions. [2024-11-19 06:08:37,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 383 transitions, 1144 flow [2024-11-19 06:08:37,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 383 transitions, 1140 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:08:37,455 INFO L231 Difference]: Finished difference. Result has 474 places, 359 transitions, 982 flow [2024-11-19 06:08:37,455 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} [2024-11-19 06:08:37,456 INFO L277 CegarLoopForPetriNet]: 480 programPoint places, -6 predicate places. [2024-11-19 06:08:37,456 INFO L471 AbstractCegarLoop]: Abstraction has has 474 places, 359 transitions, 982 flow [2024-11-19 06:08:37,456 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) [2024-11-19 06:08:37,456 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:37,456 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] [2024-11-19 06:08:37,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2024-11-19 06:08:37,456 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)] === [2024-11-19 06:08:37,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:37,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1630211757, now seen corresponding path program 1 times [2024-11-19 06:08:37,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:37,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191027872] [2024-11-19 06:08:37,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:37,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:37,608 INFO L134 CoverageAnalysis]: Checked inductivity of 13596 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 13464 trivial. 0 not checked. [2024-11-19 06:08:37,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:37,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191027872] [2024-11-19 06:08:37,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191027872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:37,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:37,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:08:37,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757880351] [2024-11-19 06:08:37,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:37,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:08:37,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:37,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:08:37,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:08:37,721 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1421 out of 1700 [2024-11-19 06:08:37,723 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) [2024-11-19 06:08:37,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:37,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1421 of 1700 [2024-11-19 06:08:37,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:37,972 INFO L124 PetriNetUnfolderBase]: 0/938 cut-off events. [2024-11-19 06:08:37,972 INFO L125 PetriNetUnfolderBase]: For 1076/1076 co-relation queries the response was YES. [2024-11-19 06:08:37,972 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. [2024-11-19 06:08:37,974 INFO L140 encePairwiseOnDemand]: 1695/1700 looper letters, 52 selfloop transitions, 2 changer transitions 3/361 dead transitions. [2024-11-19 06:08:37,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 361 transitions, 1100 flow [2024-11-19 06:08:37,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:08:37,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:08:37,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7163 transitions. [2024-11-19 06:08:37,979 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8427058823529412 [2024-11-19 06:08:37,979 INFO L175 Difference]: Start difference. First operand has 474 places, 359 transitions, 982 flow. Second operand 5 states and 7163 transitions. [2024-11-19 06:08:37,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 361 transitions, 1100 flow [2024-11-19 06:08:37,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 361 transitions, 1099 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:37,984 INFO L231 Difference]: Finished difference. Result has 454 places, 358 transitions, 987 flow [2024-11-19 06:08:37,984 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} [2024-11-19 06:08:37,984 INFO L277 CegarLoopForPetriNet]: 480 programPoint places, -26 predicate places. [2024-11-19 06:08:37,984 INFO L471 AbstractCegarLoop]: Abstraction has has 454 places, 358 transitions, 987 flow [2024-11-19 06:08:37,985 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) [2024-11-19 06:08:37,985 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:37,985 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] [2024-11-19 06:08:37,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2024-11-19 06:08:37,985 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)] === [2024-11-19 06:08:37,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:37,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1542146099, now seen corresponding path program 1 times [2024-11-19 06:08:37,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:37,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958173792] [2024-11-19 06:08:37,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:37,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:38,056 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:08:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:38,273 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:08:38,273 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:08:38,273 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 52 remaining) [2024-11-19 06:08:38,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (50 of 52 remaining) [2024-11-19 06:08:38,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (49 of 52 remaining) [2024-11-19 06:08:38,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (48 of 52 remaining) [2024-11-19 06:08:38,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (47 of 52 remaining) [2024-11-19 06:08:38,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (46 of 52 remaining) [2024-11-19 06:08:38,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 52 remaining) [2024-11-19 06:08:38,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 52 remaining) [2024-11-19 06:08:38,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 52 remaining) [2024-11-19 06:08:38,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 52 remaining) [2024-11-19 06:08:38,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 52 remaining) [2024-11-19 06:08:38,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 52 remaining) [2024-11-19 06:08:38,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 52 remaining) [2024-11-19 06:08:38,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 52 remaining) [2024-11-19 06:08:38,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 52 remaining) [2024-11-19 06:08:38,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 52 remaining) [2024-11-19 06:08:38,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 52 remaining) [2024-11-19 06:08:38,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 52 remaining) [2024-11-19 06:08:38,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 52 remaining) [2024-11-19 06:08:38,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 52 remaining) [2024-11-19 06:08:38,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 52 remaining) [2024-11-19 06:08:38,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 52 remaining) [2024-11-19 06:08:38,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 52 remaining) [2024-11-19 06:08:38,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 52 remaining) [2024-11-19 06:08:38,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 52 remaining) [2024-11-19 06:08:38,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 52 remaining) [2024-11-19 06:08:38,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 52 remaining) [2024-11-19 06:08:38,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 52 remaining) [2024-11-19 06:08:38,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 52 remaining) [2024-11-19 06:08:38,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2024-11-19 06:08:38,276 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:08:38,276 WARN L244 ceAbstractionStarter]: 44 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:08:38,276 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 45 thread instances. [2024-11-19 06:08:38,396 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:08:38,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1736 places, 1737 transitions, 7794 flow [2024-11-19 06:08:39,040 INFO L124 PetriNetUnfolderBase]: 232/2975 cut-off events. [2024-11-19 06:08:39,040 INFO L125 PetriNetUnfolderBase]: For 16170/16170 co-relation queries the response was YES. [2024-11-19 06:08:39,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4238 conditions, 2975 events. 232/2975 cut-off events. For 16170/16170 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 8225 event pairs, 0 based on Foata normal form. 0/2601 useless extension candidates. Maximal degree in co-relation 4147. Up to 92 conditions per place. [2024-11-19 06:08:39,094 INFO L82 GeneralOperation]: Start removeDead. Operand has 1736 places, 1737 transitions, 7794 flow [2024-11-19 06:08:39,100 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 489 places, 400 transitions, 2963 flow [2024-11-19 06:08:39,100 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:08:39,100 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:08:39,100 INFO L334 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2024-11-19 06:08:39,101 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:08:39,101 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:08:39,101 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:08:39,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:39,102 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:39,102 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2024-11-19 06:08:39,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:39,102 INFO L85 PathProgramCache]: Analyzing trace with hash 809693699, now seen corresponding path program 1 times [2024-11-19 06:08:39,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:39,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330051442] [2024-11-19 06:08:39,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:39,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:39,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:39,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:39,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:39,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330051442] [2024-11-19 06:08:39,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330051442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:39,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:39,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:39,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888051515] [2024-11-19 06:08:39,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:39,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:39,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:39,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:39,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:39,351 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1409 out of 1737 [2024-11-19 06:08:39,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 489 places, 400 transitions, 2963 flow. Second operand has 3 states, 3 states have (on average 1410.3333333333333) internal successors, (4231), 3 states have internal predecessors, (4231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:39,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:39,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1409 of 1737 [2024-11-19 06:08:39,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:39,913 INFO L124 PetriNetUnfolderBase]: 93/2283 cut-off events. [2024-11-19 06:08:39,913 INFO L125 PetriNetUnfolderBase]: For 17251/17251 co-relation queries the response was YES. [2024-11-19 06:08:39,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3832 conditions, 2283 events. 93/2283 cut-off events. For 17251/17251 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6513 event pairs, 46 based on Foata normal form. 93/2187 useless extension candidates. Maximal degree in co-relation 3681. Up to 328 conditions per place. [2024-11-19 06:08:39,955 INFO L140 encePairwiseOnDemand]: 1731/1737 looper letters, 55 selfloop transitions, 2 changer transitions 1/396 dead transitions. [2024-11-19 06:08:39,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 396 transitions, 3069 flow [2024-11-19 06:08:39,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:39,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:39,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4288 transitions. [2024-11-19 06:08:39,957 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8228746881596622 [2024-11-19 06:08:39,958 INFO L175 Difference]: Start difference. First operand has 489 places, 400 transitions, 2963 flow. Second operand 3 states and 4288 transitions. [2024-11-19 06:08:39,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 490 places, 396 transitions, 3069 flow [2024-11-19 06:08:39,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 489 places, 396 transitions, 1176 flow, removed 946 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:39,981 INFO L231 Difference]: Finished difference. Result has 489 places, 395 transitions, 1064 flow [2024-11-19 06:08:39,981 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1737, PETRI_DIFFERENCE_MINUEND_FLOW=1062, PETRI_DIFFERENCE_MINUEND_PLACES=487, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1064, PETRI_PLACES=489, PETRI_TRANSITIONS=395} [2024-11-19 06:08:39,981 INFO L277 CegarLoopForPetriNet]: 489 programPoint places, 0 predicate places. [2024-11-19 06:08:39,981 INFO L471 AbstractCegarLoop]: Abstraction has has 489 places, 395 transitions, 1064 flow [2024-11-19 06:08:39,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1410.3333333333333) internal successors, (4231), 3 states have internal predecessors, (4231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:39,982 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:39,982 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] [2024-11-19 06:08:39,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2024-11-19 06:08:39,982 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2024-11-19 06:08:39,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:39,982 INFO L85 PathProgramCache]: Analyzing trace with hash -568170106, now seen corresponding path program 1 times [2024-11-19 06:08:39,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:39,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633296881] [2024-11-19 06:08:39,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:39,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:40,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:40,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:40,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633296881] [2024-11-19 06:08:40,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633296881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:40,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:40,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:40,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918465370] [2024-11-19 06:08:40,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:40,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:40,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:40,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:40,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:40,107 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1317 out of 1737 [2024-11-19 06:08:40,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 489 places, 395 transitions, 1064 flow. Second operand has 3 states, 3 states have (on average 1318.0) internal successors, (3954), 3 states have internal predecessors, (3954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:40,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:40,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1317 of 1737 [2024-11-19 06:08:40,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:40,603 INFO L124 PetriNetUnfolderBase]: 47/2049 cut-off events. [2024-11-19 06:08:40,603 INFO L125 PetriNetUnfolderBase]: For 1124/1124 co-relation queries the response was YES. [2024-11-19 06:08:40,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2561 conditions, 2049 events. 47/2049 cut-off events. For 1124/1124 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4897 event pairs, 0 based on Foata normal form. 46/2002 useless extension candidates. Maximal degree in co-relation 2492. Up to 235 conditions per place. [2024-11-19 06:08:40,640 INFO L140 encePairwiseOnDemand]: 1731/1737 looper letters, 53 selfloop transitions, 1 changer transitions 24/390 dead transitions. [2024-11-19 06:08:40,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 390 transitions, 1166 flow [2024-11-19 06:08:40,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:40,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:40,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4012 transitions. [2024-11-19 06:08:40,642 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7699098061792362 [2024-11-19 06:08:40,642 INFO L175 Difference]: Start difference. First operand has 489 places, 395 transitions, 1064 flow. Second operand 3 states and 4012 transitions. [2024-11-19 06:08:40,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 390 transitions, 1166 flow [2024-11-19 06:08:40,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 390 transitions, 1162 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:08:40,646 INFO L231 Difference]: Finished difference. Result has 483 places, 366 transitions, 1002 flow [2024-11-19 06:08:40,646 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1737, PETRI_DIFFERENCE_MINUEND_FLOW=1050, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1002, PETRI_PLACES=483, PETRI_TRANSITIONS=366} [2024-11-19 06:08:40,646 INFO L277 CegarLoopForPetriNet]: 489 programPoint places, -6 predicate places. [2024-11-19 06:08:40,646 INFO L471 AbstractCegarLoop]: Abstraction has has 483 places, 366 transitions, 1002 flow [2024-11-19 06:08:40,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1318.0) internal successors, (3954), 3 states have internal predecessors, (3954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:40,647 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:40,647 INFO L204 CegarLoopForPetriNet]: trace histogram [46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:40,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2024-11-19 06:08:40,647 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2024-11-19 06:08:40,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:40,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1561966325, now seen corresponding path program 1 times [2024-11-19 06:08:40,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:40,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269581067] [2024-11-19 06:08:40,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:40,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:40,803 INFO L134 CoverageAnalysis]: Checked inductivity of 14220 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 14085 trivial. 0 not checked. [2024-11-19 06:08:40,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:40,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269581067] [2024-11-19 06:08:40,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269581067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:40,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:40,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:08:40,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317414560] [2024-11-19 06:08:40,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:40,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:08:40,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:40,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:08:40,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:08:40,901 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1452 out of 1737 [2024-11-19 06:08:40,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 366 transitions, 1002 flow. Second operand has 5 states, 5 states have (on average 1463.0) internal successors, (7315), 5 states have internal predecessors, (7315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:40,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:40,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1452 of 1737 [2024-11-19 06:08:40,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:41,150 INFO L124 PetriNetUnfolderBase]: 0/958 cut-off events. [2024-11-19 06:08:41,150 INFO L125 PetriNetUnfolderBase]: For 1123/1123 co-relation queries the response was YES. [2024-11-19 06:08:41,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1288 conditions, 958 events. 0/958 cut-off events. For 1123/1123 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 567 event pairs, 0 based on Foata normal form. 1/958 useless extension candidates. Maximal degree in co-relation 0. Up to 143 conditions per place. [2024-11-19 06:08:41,152 INFO L140 encePairwiseOnDemand]: 1732/1737 looper letters, 53 selfloop transitions, 2 changer transitions 3/368 dead transitions. [2024-11-19 06:08:41,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 368 transitions, 1122 flow [2024-11-19 06:08:41,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:08:41,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:08:41,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7319 transitions. [2024-11-19 06:08:41,154 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8427173287276915 [2024-11-19 06:08:41,154 INFO L175 Difference]: Start difference. First operand has 483 places, 366 transitions, 1002 flow. Second operand 5 states and 7319 transitions. [2024-11-19 06:08:41,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 368 transitions, 1122 flow [2024-11-19 06:08:41,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 368 transitions, 1121 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:41,158 INFO L231 Difference]: Finished difference. Result has 463 places, 365 transitions, 1007 flow [2024-11-19 06:08:41,158 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1737, PETRI_DIFFERENCE_MINUEND_FLOW=1001, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1007, PETRI_PLACES=463, PETRI_TRANSITIONS=365} [2024-11-19 06:08:41,159 INFO L277 CegarLoopForPetriNet]: 489 programPoint places, -26 predicate places. [2024-11-19 06:08:41,159 INFO L471 AbstractCegarLoop]: Abstraction has has 463 places, 365 transitions, 1007 flow [2024-11-19 06:08:41,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1463.0) internal successors, (7315), 5 states have internal predecessors, (7315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:41,159 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:41,159 INFO L204 CegarLoopForPetriNet]: trace histogram [46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:41,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2024-11-19 06:08:41,159 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2024-11-19 06:08:41,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:41,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1523801822, now seen corresponding path program 1 times [2024-11-19 06:08:41,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:41,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530997765] [2024-11-19 06:08:41,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:41,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:41,235 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:08:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:41,465 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:08:41,465 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:08:41,465 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining) [2024-11-19 06:08:41,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2024-11-19 06:08:41,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2024-11-19 06:08:41,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2024-11-19 06:08:41,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2024-11-19 06:08:41,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2024-11-19 06:08:41,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 53 remaining) [2024-11-19 06:08:41,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2024-11-19 06:08:41,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2024-11-19 06:08:41,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2024-11-19 06:08:41,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining) [2024-11-19 06:08:41,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 53 remaining) [2024-11-19 06:08:41,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 53 remaining) [2024-11-19 06:08:41,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2024-11-19 06:08:41,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2024-11-19 06:08:41,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2024-11-19 06:08:41,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2024-11-19 06:08:41,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2024-11-19 06:08:41,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2024-11-19 06:08:41,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2024-11-19 06:08:41,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2024-11-19 06:08:41,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2024-11-19 06:08:41,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2024-11-19 06:08:41,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2024-11-19 06:08:41,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2024-11-19 06:08:41,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2024-11-19 06:08:41,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2024-11-19 06:08:41,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2024-11-19 06:08:41,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2024-11-19 06:08:41,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2024-11-19 06:08:41,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2024-11-19 06:08:41,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2024-11-19 06:08:41,468 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:08:41,468 WARN L244 ceAbstractionStarter]: 45 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:08:41,468 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 46 thread instances. [2024-11-19 06:08:41,594 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:08:41,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1773 places, 1774 transitions, 8056 flow [2024-11-19 06:08:42,285 INFO L124 PetriNetUnfolderBase]: 237/3039 cut-off events. [2024-11-19 06:08:42,286 INFO L125 PetriNetUnfolderBase]: For 17250/17250 co-relation queries the response was YES. [2024-11-19 06:08:42,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4353 conditions, 3039 events. 237/3039 cut-off events. For 17250/17250 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8730 event pairs, 0 based on Foata normal form. 0/2657 useless extension candidates. Maximal degree in co-relation 4260. Up to 94 conditions per place. [2024-11-19 06:08:42,342 INFO L82 GeneralOperation]: Start removeDead. Operand has 1773 places, 1774 transitions, 8056 flow [2024-11-19 06:08:42,349 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 498 places, 407 transitions, 3071 flow [2024-11-19 06:08:42,349 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:08:42,350 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:08:42,350 INFO L334 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2024-11-19 06:08:42,351 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:08:42,351 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:08:42,351 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:08:42,351 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:42,351 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:42,351 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-11-19 06:08:42,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:42,351 INFO L85 PathProgramCache]: Analyzing trace with hash 90021891, now seen corresponding path program 1 times [2024-11-19 06:08:42,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:42,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048221149] [2024-11-19 06:08:42,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:42,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:42,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:42,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:42,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048221149] [2024-11-19 06:08:42,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048221149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:42,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:42,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:42,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298442781] [2024-11-19 06:08:42,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:42,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:42,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:42,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:42,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:42,512 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1439 out of 1774 [2024-11-19 06:08:42,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 407 transitions, 3071 flow. Second operand has 3 states, 3 states have (on average 1440.3333333333333) internal successors, (4321), 3 states have internal predecessors, (4321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:42,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:42,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1439 of 1774 [2024-11-19 06:08:42,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:43,220 INFO L124 PetriNetUnfolderBase]: 95/2332 cut-off events. [2024-11-19 06:08:43,220 INFO L125 PetriNetUnfolderBase]: For 18378/18378 co-relation queries the response was YES. [2024-11-19 06:08:43,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3938 conditions, 2332 events. 95/2332 cut-off events. For 18378/18378 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 6517 event pairs, 47 based on Foata normal form. 48/2187 useless extension candidates. Maximal degree in co-relation 3786. Up to 335 conditions per place. [2024-11-19 06:08:43,254 INFO L140 encePairwiseOnDemand]: 1768/1774 looper letters, 56 selfloop transitions, 2 changer transitions 1/403 dead transitions. [2024-11-19 06:08:43,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 403 transitions, 3179 flow [2024-11-19 06:08:43,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:43,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:43,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4379 transitions. [2024-11-19 06:08:43,255 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8228109733183014 [2024-11-19 06:08:43,255 INFO L175 Difference]: Start difference. First operand has 498 places, 407 transitions, 3071 flow. Second operand 3 states and 4379 transitions. [2024-11-19 06:08:43,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 403 transitions, 3179 flow [2024-11-19 06:08:43,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 403 transitions, 1198 flow, removed 990 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:43,280 INFO L231 Difference]: Finished difference. Result has 498 places, 402 transitions, 1084 flow [2024-11-19 06:08:43,281 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1774, PETRI_DIFFERENCE_MINUEND_FLOW=1082, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1084, PETRI_PLACES=498, PETRI_TRANSITIONS=402} [2024-11-19 06:08:43,281 INFO L277 CegarLoopForPetriNet]: 498 programPoint places, 0 predicate places. [2024-11-19 06:08:43,281 INFO L471 AbstractCegarLoop]: Abstraction has has 498 places, 402 transitions, 1084 flow [2024-11-19 06:08:43,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1440.3333333333333) internal successors, (4321), 3 states have internal predecessors, (4321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:43,282 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:43,282 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] [2024-11-19 06:08:43,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2024-11-19 06:08:43,282 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-11-19 06:08:43,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:43,282 INFO L85 PathProgramCache]: Analyzing trace with hash 762798854, now seen corresponding path program 1 times [2024-11-19 06:08:43,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:43,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361643849] [2024-11-19 06:08:43,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:43,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:43,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:43,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:43,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361643849] [2024-11-19 06:08:43,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361643849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:43,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:43,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:43,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761813854] [2024-11-19 06:08:43,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:43,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:43,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:43,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:43,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:43,400 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1345 out of 1774 [2024-11-19 06:08:43,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 402 transitions, 1084 flow. Second operand has 3 states, 3 states have (on average 1346.0) internal successors, (4038), 3 states have internal predecessors, (4038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:43,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:43,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1345 of 1774 [2024-11-19 06:08:43,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:43,910 INFO L124 PetriNetUnfolderBase]: 48/2093 cut-off events. [2024-11-19 06:08:43,911 INFO L125 PetriNetUnfolderBase]: For 1172/1172 co-relation queries the response was YES. [2024-11-19 06:08:43,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2616 conditions, 2093 events. 48/2093 cut-off events. For 1172/1172 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4863 event pairs, 0 based on Foata normal form. 47/2045 useless extension candidates. Maximal degree in co-relation 2546. Up to 240 conditions per place. [2024-11-19 06:08:43,946 INFO L140 encePairwiseOnDemand]: 1768/1774 looper letters, 54 selfloop transitions, 1 changer transitions 24/397 dead transitions. [2024-11-19 06:08:43,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 397 transitions, 1188 flow [2024-11-19 06:08:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:43,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:43,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4097 transitions. [2024-11-19 06:08:43,948 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7698233746711762 [2024-11-19 06:08:43,948 INFO L175 Difference]: Start difference. First operand has 498 places, 402 transitions, 1084 flow. Second operand 3 states and 4097 transitions. [2024-11-19 06:08:43,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 397 transitions, 1188 flow [2024-11-19 06:08:43,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 492 places, 397 transitions, 1184 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:08:43,953 INFO L231 Difference]: Finished difference. Result has 492 places, 373 transitions, 1022 flow [2024-11-19 06:08:43,953 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1774, PETRI_DIFFERENCE_MINUEND_FLOW=1070, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1022, PETRI_PLACES=492, PETRI_TRANSITIONS=373} [2024-11-19 06:08:43,953 INFO L277 CegarLoopForPetriNet]: 498 programPoint places, -6 predicate places. [2024-11-19 06:08:43,953 INFO L471 AbstractCegarLoop]: Abstraction has has 492 places, 373 transitions, 1022 flow [2024-11-19 06:08:43,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1346.0) internal successors, (4038), 3 states have internal predecessors, (4038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:43,953 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:43,953 INFO L204 CegarLoopForPetriNet]: trace histogram [47, 47, 47, 47, 47, 47, 47, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:43,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2024-11-19 06:08:43,954 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-11-19 06:08:43,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:43,954 INFO L85 PathProgramCache]: Analyzing trace with hash 588027439, now seen corresponding path program 1 times [2024-11-19 06:08:43,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:43,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064513162] [2024-11-19 06:08:43,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:43,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:44,113 INFO L134 CoverageAnalysis]: Checked inductivity of 14858 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 14720 trivial. 0 not checked. [2024-11-19 06:08:44,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:44,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064513162] [2024-11-19 06:08:44,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064513162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:44,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:44,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:08:44,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718137427] [2024-11-19 06:08:44,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:44,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:08:44,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:44,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:08:44,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:08:44,225 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1483 out of 1774 [2024-11-19 06:08:44,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 492 places, 373 transitions, 1022 flow. Second operand has 5 states, 5 states have (on average 1494.2) internal successors, (7471), 5 states have internal predecessors, (7471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:44,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:44,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1483 of 1774 [2024-11-19 06:08:44,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:44,484 INFO L124 PetriNetUnfolderBase]: 0/978 cut-off events. [2024-11-19 06:08:44,484 INFO L125 PetriNetUnfolderBase]: For 1171/1171 co-relation queries the response was YES. [2024-11-19 06:08:44,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1315 conditions, 978 events. 0/978 cut-off events. For 1171/1171 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 579 event pairs, 0 based on Foata normal form. 1/978 useless extension candidates. Maximal degree in co-relation 0. Up to 146 conditions per place. [2024-11-19 06:08:44,486 INFO L140 encePairwiseOnDemand]: 1769/1774 looper letters, 54 selfloop transitions, 2 changer transitions 3/375 dead transitions. [2024-11-19 06:08:44,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 375 transitions, 1144 flow [2024-11-19 06:08:44,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:08:44,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:08:44,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7475 transitions. [2024-11-19 06:08:44,488 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.842728297632469 [2024-11-19 06:08:44,488 INFO L175 Difference]: Start difference. First operand has 492 places, 373 transitions, 1022 flow. Second operand 5 states and 7475 transitions. [2024-11-19 06:08:44,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 375 transitions, 1144 flow [2024-11-19 06:08:44,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 375 transitions, 1143 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:44,493 INFO L231 Difference]: Finished difference. Result has 472 places, 372 transitions, 1027 flow [2024-11-19 06:08:44,493 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1774, PETRI_DIFFERENCE_MINUEND_FLOW=1021, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1027, PETRI_PLACES=472, PETRI_TRANSITIONS=372} [2024-11-19 06:08:44,493 INFO L277 CegarLoopForPetriNet]: 498 programPoint places, -26 predicate places. [2024-11-19 06:08:44,494 INFO L471 AbstractCegarLoop]: Abstraction has has 472 places, 372 transitions, 1027 flow [2024-11-19 06:08:44,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1494.2) internal successors, (7471), 5 states have internal predecessors, (7471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:44,494 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:44,494 INFO L204 CegarLoopForPetriNet]: trace histogram [47, 47, 47, 47, 47, 47, 47, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:44,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2024-11-19 06:08:44,495 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-11-19 06:08:44,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:44,495 INFO L85 PathProgramCache]: Analyzing trace with hash 961678232, now seen corresponding path program 1 times [2024-11-19 06:08:44,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:44,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278247424] [2024-11-19 06:08:44,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:44,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:44,577 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:08:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:44,835 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:08:44,835 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:08:44,835 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (53 of 54 remaining) [2024-11-19 06:08:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (52 of 54 remaining) [2024-11-19 06:08:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (51 of 54 remaining) [2024-11-19 06:08:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (50 of 54 remaining) [2024-11-19 06:08:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (49 of 54 remaining) [2024-11-19 06:08:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (48 of 54 remaining) [2024-11-19 06:08:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (47 of 54 remaining) [2024-11-19 06:08:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 54 remaining) [2024-11-19 06:08:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 54 remaining) [2024-11-19 06:08:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 54 remaining) [2024-11-19 06:08:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 54 remaining) [2024-11-19 06:08:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 54 remaining) [2024-11-19 06:08:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 54 remaining) [2024-11-19 06:08:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 54 remaining) [2024-11-19 06:08:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 54 remaining) [2024-11-19 06:08:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 54 remaining) [2024-11-19 06:08:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 54 remaining) [2024-11-19 06:08:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 54 remaining) [2024-11-19 06:08:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 54 remaining) [2024-11-19 06:08:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 54 remaining) [2024-11-19 06:08:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 54 remaining) [2024-11-19 06:08:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 54 remaining) [2024-11-19 06:08:44,836 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 54 remaining) [2024-11-19 06:08:44,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 54 remaining) [2024-11-19 06:08:44,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 54 remaining) [2024-11-19 06:08:44,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 54 remaining) [2024-11-19 06:08:44,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 54 remaining) [2024-11-19 06:08:44,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 54 remaining) [2024-11-19 06:08:44,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 54 remaining) [2024-11-19 06:08:44,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 54 remaining) [2024-11-19 06:08:44,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 54 remaining) [2024-11-19 06:08:44,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 54 remaining) [2024-11-19 06:08:44,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 54 remaining) [2024-11-19 06:08:44,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 54 remaining) [2024-11-19 06:08:44,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 54 remaining) [2024-11-19 06:08:44,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 54 remaining) [2024-11-19 06:08:44,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 54 remaining) [2024-11-19 06:08:44,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 54 remaining) [2024-11-19 06:08:44,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 54 remaining) [2024-11-19 06:08:44,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 54 remaining) [2024-11-19 06:08:44,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 54 remaining) [2024-11-19 06:08:44,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 54 remaining) [2024-11-19 06:08:44,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 54 remaining) [2024-11-19 06:08:44,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 54 remaining) [2024-11-19 06:08:44,837 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 54 remaining) [2024-11-19 06:08:44,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 54 remaining) [2024-11-19 06:08:44,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 54 remaining) [2024-11-19 06:08:44,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 54 remaining) [2024-11-19 06:08:44,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 54 remaining) [2024-11-19 06:08:44,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 54 remaining) [2024-11-19 06:08:44,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 54 remaining) [2024-11-19 06:08:44,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 54 remaining) [2024-11-19 06:08:44,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 54 remaining) [2024-11-19 06:08:44,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 54 remaining) [2024-11-19 06:08:44,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2024-11-19 06:08:44,838 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:08:44,838 WARN L244 ceAbstractionStarter]: 46 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:08:44,838 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 47 thread instances. [2024-11-19 06:08:44,968 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:08:44,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1810 places, 1811 transitions, 8322 flow [2024-11-19 06:08:45,665 INFO L124 PetriNetUnfolderBase]: 242/3103 cut-off events. [2024-11-19 06:08:45,665 INFO L125 PetriNetUnfolderBase]: For 18377/18377 co-relation queries the response was YES. [2024-11-19 06:08:45,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4469 conditions, 3103 events. 242/3103 cut-off events. For 18377/18377 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8906 event pairs, 0 based on Foata normal form. 0/2713 useless extension candidates. Maximal degree in co-relation 4374. Up to 96 conditions per place. [2024-11-19 06:08:45,724 INFO L82 GeneralOperation]: Start removeDead. Operand has 1810 places, 1811 transitions, 8322 flow [2024-11-19 06:08:45,731 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 507 places, 414 transitions, 3181 flow [2024-11-19 06:08:45,732 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:08:45,732 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:08:45,732 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2024-11-19 06:08:45,733 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:08:45,733 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:08:45,733 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:08:45,733 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:45,733 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:45,733 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2024-11-19 06:08:45,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:45,734 INFO L85 PathProgramCache]: Analyzing trace with hash -678554877, now seen corresponding path program 1 times [2024-11-19 06:08:45,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:45,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680286451] [2024-11-19 06:08:45,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:45,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:45,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:45,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:45,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680286451] [2024-11-19 06:08:45,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680286451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:45,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:45,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:45,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751245897] [2024-11-19 06:08:45,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:45,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:45,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:45,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:45,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:45,891 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1469 out of 1811 [2024-11-19 06:08:45,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 414 transitions, 3181 flow. Second operand has 3 states, 3 states have (on average 1470.3333333333333) internal successors, (4411), 3 states have internal predecessors, (4411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:45,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:45,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1469 of 1811 [2024-11-19 06:08:45,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:46,666 INFO L124 PetriNetUnfolderBase]: 97/2381 cut-off events. [2024-11-19 06:08:46,666 INFO L125 PetriNetUnfolderBase]: For 19553/19553 co-relation queries the response was YES. [2024-11-19 06:08:46,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4045 conditions, 2381 events. 97/2381 cut-off events. For 19553/19553 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 6670 event pairs, 48 based on Foata normal form. 49/2233 useless extension candidates. Maximal degree in co-relation 3892. Up to 342 conditions per place. [2024-11-19 06:08:46,694 INFO L140 encePairwiseOnDemand]: 1805/1811 looper letters, 57 selfloop transitions, 2 changer transitions 1/410 dead transitions. [2024-11-19 06:08:46,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 410 transitions, 3291 flow [2024-11-19 06:08:46,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:46,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:46,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4470 transitions. [2024-11-19 06:08:46,696 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8227498619547211 [2024-11-19 06:08:46,696 INFO L175 Difference]: Start difference. First operand has 507 places, 414 transitions, 3181 flow. Second operand 3 states and 4470 transitions. [2024-11-19 06:08:46,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 410 transitions, 3291 flow [2024-11-19 06:08:46,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 410 transitions, 1220 flow, removed 1035 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:46,724 INFO L231 Difference]: Finished difference. Result has 507 places, 409 transitions, 1104 flow [2024-11-19 06:08:46,724 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1811, PETRI_DIFFERENCE_MINUEND_FLOW=1102, PETRI_DIFFERENCE_MINUEND_PLACES=505, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1104, PETRI_PLACES=507, PETRI_TRANSITIONS=409} [2024-11-19 06:08:46,724 INFO L277 CegarLoopForPetriNet]: 507 programPoint places, 0 predicate places. [2024-11-19 06:08:46,724 INFO L471 AbstractCegarLoop]: Abstraction has has 507 places, 409 transitions, 1104 flow [2024-11-19 06:08:46,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1470.3333333333333) internal successors, (4411), 3 states have internal predecessors, (4411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:46,725 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:46,725 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] [2024-11-19 06:08:46,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2024-11-19 06:08:46,725 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2024-11-19 06:08:46,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:46,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1081539898, now seen corresponding path program 1 times [2024-11-19 06:08:46,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:46,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105420836] [2024-11-19 06:08:46,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:46,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:46,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:46,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:46,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105420836] [2024-11-19 06:08:46,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105420836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:46,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:46,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:46,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061465817] [2024-11-19 06:08:46,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:46,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:46,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:46,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:46,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:46,859 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1373 out of 1811 [2024-11-19 06:08:46,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 409 transitions, 1104 flow. Second operand has 3 states, 3 states have (on average 1374.0) internal successors, (4122), 3 states have internal predecessors, (4122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:46,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:46,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1373 of 1811 [2024-11-19 06:08:46,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:47,382 INFO L124 PetriNetUnfolderBase]: 49/2137 cut-off events. [2024-11-19 06:08:47,382 INFO L125 PetriNetUnfolderBase]: For 1221/1221 co-relation queries the response was YES. [2024-11-19 06:08:47,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2671 conditions, 2137 events. 49/2137 cut-off events. For 1221/1221 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4968 event pairs, 0 based on Foata normal form. 48/2088 useless extension candidates. Maximal degree in co-relation 2600. Up to 245 conditions per place. [2024-11-19 06:08:47,420 INFO L140 encePairwiseOnDemand]: 1805/1811 looper letters, 55 selfloop transitions, 1 changer transitions 24/404 dead transitions. [2024-11-19 06:08:47,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 503 places, 404 transitions, 1210 flow [2024-11-19 06:08:47,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:47,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:47,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4182 transitions. [2024-11-19 06:08:47,422 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7697404748757593 [2024-11-19 06:08:47,422 INFO L175 Difference]: Start difference. First operand has 507 places, 409 transitions, 1104 flow. Second operand 3 states and 4182 transitions. [2024-11-19 06:08:47,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 503 places, 404 transitions, 1210 flow [2024-11-19 06:08:47,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 404 transitions, 1206 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:08:47,427 INFO L231 Difference]: Finished difference. Result has 501 places, 380 transitions, 1042 flow [2024-11-19 06:08:47,427 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1811, PETRI_DIFFERENCE_MINUEND_FLOW=1090, PETRI_DIFFERENCE_MINUEND_PLACES=499, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1042, PETRI_PLACES=501, PETRI_TRANSITIONS=380} [2024-11-19 06:08:47,427 INFO L277 CegarLoopForPetriNet]: 507 programPoint places, -6 predicate places. [2024-11-19 06:08:47,427 INFO L471 AbstractCegarLoop]: Abstraction has has 501 places, 380 transitions, 1042 flow [2024-11-19 06:08:47,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1374.0) internal successors, (4122), 3 states have internal predecessors, (4122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:47,427 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:47,427 INFO L204 CegarLoopForPetriNet]: trace histogram [48, 48, 48, 48, 48, 48, 48, 47, 47, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:47,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2024-11-19 06:08:47,428 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2024-11-19 06:08:47,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:47,428 INFO L85 PathProgramCache]: Analyzing trace with hash 858274335, now seen corresponding path program 1 times [2024-11-19 06:08:47,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:47,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329273726] [2024-11-19 06:08:47,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:47,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:47,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:47,590 INFO L134 CoverageAnalysis]: Checked inductivity of 15510 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 15369 trivial. 0 not checked. [2024-11-19 06:08:47,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:47,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329273726] [2024-11-19 06:08:47,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329273726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:47,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:47,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:08:47,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518455099] [2024-11-19 06:08:47,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:47,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:08:47,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:47,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:08:47,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:08:47,695 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1514 out of 1811 [2024-11-19 06:08:47,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 380 transitions, 1042 flow. Second operand has 5 states, 5 states have (on average 1525.4) internal successors, (7627), 5 states have internal predecessors, (7627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:47,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:47,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1514 of 1811 [2024-11-19 06:08:47,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:47,980 INFO L124 PetriNetUnfolderBase]: 0/998 cut-off events. [2024-11-19 06:08:47,980 INFO L125 PetriNetUnfolderBase]: For 1220/1220 co-relation queries the response was YES. [2024-11-19 06:08:47,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1342 conditions, 998 events. 0/998 cut-off events. For 1220/1220 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 591 event pairs, 0 based on Foata normal form. 1/998 useless extension candidates. Maximal degree in co-relation 0. Up to 149 conditions per place. [2024-11-19 06:08:47,982 INFO L140 encePairwiseOnDemand]: 1806/1811 looper letters, 55 selfloop transitions, 2 changer transitions 3/382 dead transitions. [2024-11-19 06:08:47,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 382 transitions, 1166 flow [2024-11-19 06:08:47,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:08:47,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:08:47,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7631 transitions. [2024-11-19 06:08:47,984 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.842738818332413 [2024-11-19 06:08:47,984 INFO L175 Difference]: Start difference. First operand has 501 places, 380 transitions, 1042 flow. Second operand 5 states and 7631 transitions. [2024-11-19 06:08:47,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 382 transitions, 1166 flow [2024-11-19 06:08:47,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 382 transitions, 1165 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:47,989 INFO L231 Difference]: Finished difference. Result has 481 places, 379 transitions, 1047 flow [2024-11-19 06:08:47,989 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1811, PETRI_DIFFERENCE_MINUEND_FLOW=1041, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1047, PETRI_PLACES=481, PETRI_TRANSITIONS=379} [2024-11-19 06:08:47,989 INFO L277 CegarLoopForPetriNet]: 507 programPoint places, -26 predicate places. [2024-11-19 06:08:47,989 INFO L471 AbstractCegarLoop]: Abstraction has has 481 places, 379 transitions, 1047 flow [2024-11-19 06:08:47,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1525.4) internal successors, (7627), 5 states have internal predecessors, (7627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:47,989 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:47,990 INFO L204 CegarLoopForPetriNet]: trace histogram [48, 48, 48, 48, 48, 48, 48, 47, 47, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:47,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2024-11-19 06:08:47,990 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2024-11-19 06:08:47,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:47,990 INFO L85 PathProgramCache]: Analyzing trace with hash -546425035, now seen corresponding path program 1 times [2024-11-19 06:08:47,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:47,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686389753] [2024-11-19 06:08:47,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:47,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:48,075 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:08:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:48,330 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:08:48,330 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:08:48,330 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (54 of 55 remaining) [2024-11-19 06:08:48,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (53 of 55 remaining) [2024-11-19 06:08:48,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (52 of 55 remaining) [2024-11-19 06:08:48,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (51 of 55 remaining) [2024-11-19 06:08:48,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (50 of 55 remaining) [2024-11-19 06:08:48,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (49 of 55 remaining) [2024-11-19 06:08:48,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 55 remaining) [2024-11-19 06:08:48,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 55 remaining) [2024-11-19 06:08:48,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 55 remaining) [2024-11-19 06:08:48,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2024-11-19 06:08:48,333 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:08:48,333 WARN L244 ceAbstractionStarter]: 47 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:08:48,333 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 48 thread instances. [2024-11-19 06:08:48,461 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:08:48,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1847 places, 1848 transitions, 8592 flow [2024-11-19 06:08:49,237 INFO L124 PetriNetUnfolderBase]: 247/3167 cut-off events. [2024-11-19 06:08:49,237 INFO L125 PetriNetUnfolderBase]: For 19552/19552 co-relation queries the response was YES. [2024-11-19 06:08:49,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4586 conditions, 3167 events. 247/3167 cut-off events. For 19552/19552 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8905 event pairs, 0 based on Foata normal form. 0/2769 useless extension candidates. Maximal degree in co-relation 4489. Up to 98 conditions per place. [2024-11-19 06:08:49,298 INFO L82 GeneralOperation]: Start removeDead. Operand has 1847 places, 1848 transitions, 8592 flow [2024-11-19 06:08:49,306 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 516 places, 421 transitions, 3293 flow [2024-11-19 06:08:49,306 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:08:49,306 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:08:49,306 INFO L334 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2024-11-19 06:08:49,307 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:08:49,307 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:08:49,307 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:08:49,307 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:49,307 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:49,307 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2024-11-19 06:08:49,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:49,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1496036605, now seen corresponding path program 1 times [2024-11-19 06:08:49,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:49,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995864560] [2024-11-19 06:08:49,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:49,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:49,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:49,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:49,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995864560] [2024-11-19 06:08:49,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995864560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:49,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:49,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:49,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471623286] [2024-11-19 06:08:49,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:49,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:49,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:49,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:49,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:49,489 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1499 out of 1848 [2024-11-19 06:08:49,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 421 transitions, 3293 flow. Second operand has 3 states, 3 states have (on average 1500.3333333333333) internal successors, (4501), 3 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:49,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:49,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1499 of 1848 [2024-11-19 06:08:49,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:50,378 INFO L124 PetriNetUnfolderBase]: 99/2430 cut-off events. [2024-11-19 06:08:50,379 INFO L125 PetriNetUnfolderBase]: For 20777/20777 co-relation queries the response was YES. [2024-11-19 06:08:50,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4153 conditions, 2430 events. 99/2430 cut-off events. For 20777/20777 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6943 event pairs, 49 based on Foata normal form. 99/2328 useless extension candidates. Maximal degree in co-relation 3999. Up to 349 conditions per place. [2024-11-19 06:08:50,410 INFO L140 encePairwiseOnDemand]: 1842/1848 looper letters, 58 selfloop transitions, 2 changer transitions 1/417 dead transitions. [2024-11-19 06:08:50,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 417 transitions, 3405 flow [2024-11-19 06:08:50,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:50,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:50,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4561 transitions. [2024-11-19 06:08:50,413 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8226911976911977 [2024-11-19 06:08:50,413 INFO L175 Difference]: Start difference. First operand has 516 places, 421 transitions, 3293 flow. Second operand 3 states and 4561 transitions. [2024-11-19 06:08:50,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 417 transitions, 3405 flow [2024-11-19 06:08:50,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 417 transitions, 1242 flow, removed 1081 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:50,451 INFO L231 Difference]: Finished difference. Result has 516 places, 416 transitions, 1124 flow [2024-11-19 06:08:50,451 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1848, PETRI_DIFFERENCE_MINUEND_FLOW=1122, PETRI_DIFFERENCE_MINUEND_PLACES=514, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1124, PETRI_PLACES=516, PETRI_TRANSITIONS=416} [2024-11-19 06:08:50,451 INFO L277 CegarLoopForPetriNet]: 516 programPoint places, 0 predicate places. [2024-11-19 06:08:50,451 INFO L471 AbstractCegarLoop]: Abstraction has has 516 places, 416 transitions, 1124 flow [2024-11-19 06:08:50,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1500.3333333333333) internal successors, (4501), 3 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:50,452 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:50,452 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] [2024-11-19 06:08:50,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2024-11-19 06:08:50,452 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2024-11-19 06:08:50,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:50,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1806219066, now seen corresponding path program 1 times [2024-11-19 06:08:50,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:50,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390347572] [2024-11-19 06:08:50,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:50,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:50,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:50,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:50,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390347572] [2024-11-19 06:08:50,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390347572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:50,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:50,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:50,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055660523] [2024-11-19 06:08:50,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:50,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:50,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:50,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:50,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:50,616 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1401 out of 1848 [2024-11-19 06:08:50,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 416 transitions, 1124 flow. Second operand has 3 states, 3 states have (on average 1402.0) internal successors, (4206), 3 states have internal predecessors, (4206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:50,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:50,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1401 of 1848 [2024-11-19 06:08:50,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:51,294 INFO L124 PetriNetUnfolderBase]: 50/2181 cut-off events. [2024-11-19 06:08:51,294 INFO L125 PetriNetUnfolderBase]: For 1271/1271 co-relation queries the response was YES. [2024-11-19 06:08:51,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2726 conditions, 2181 events. 50/2181 cut-off events. For 1271/1271 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5221 event pairs, 0 based on Foata normal form. 49/2131 useless extension candidates. Maximal degree in co-relation 2654. Up to 250 conditions per place. [2024-11-19 06:08:51,330 INFO L140 encePairwiseOnDemand]: 1842/1848 looper letters, 56 selfloop transitions, 1 changer transitions 24/411 dead transitions. [2024-11-19 06:08:51,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 411 transitions, 1232 flow [2024-11-19 06:08:51,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:51,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:51,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4267 transitions. [2024-11-19 06:08:51,332 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7696608946608947 [2024-11-19 06:08:51,332 INFO L175 Difference]: Start difference. First operand has 516 places, 416 transitions, 1124 flow. Second operand 3 states and 4267 transitions. [2024-11-19 06:08:51,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 411 transitions, 1232 flow [2024-11-19 06:08:51,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 510 places, 411 transitions, 1228 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:08:51,336 INFO L231 Difference]: Finished difference. Result has 510 places, 387 transitions, 1062 flow [2024-11-19 06:08:51,337 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1848, PETRI_DIFFERENCE_MINUEND_FLOW=1110, PETRI_DIFFERENCE_MINUEND_PLACES=508, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1062, PETRI_PLACES=510, PETRI_TRANSITIONS=387} [2024-11-19 06:08:51,337 INFO L277 CegarLoopForPetriNet]: 516 programPoint places, -6 predicate places. [2024-11-19 06:08:51,337 INFO L471 AbstractCegarLoop]: Abstraction has has 510 places, 387 transitions, 1062 flow [2024-11-19 06:08:51,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1402.0) internal successors, (4206), 3 states have internal predecessors, (4206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:51,337 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:51,337 INFO L204 CegarLoopForPetriNet]: trace histogram [49, 49, 49, 49, 49, 49, 49, 48, 48, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:51,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2024-11-19 06:08:51,337 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2024-11-19 06:08:51,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:51,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1926125115, now seen corresponding path program 1 times [2024-11-19 06:08:51,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:51,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934993991] [2024-11-19 06:08:51,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:51,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:51,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:51,503 INFO L134 CoverageAnalysis]: Checked inductivity of 16176 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 16032 trivial. 0 not checked. [2024-11-19 06:08:51,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:51,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934993991] [2024-11-19 06:08:51,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934993991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:51,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:51,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:08:51,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932256135] [2024-11-19 06:08:51,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:51,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:08:51,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:51,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:08:51,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:08:51,612 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1545 out of 1848 [2024-11-19 06:08:51,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 387 transitions, 1062 flow. Second operand has 5 states, 5 states have (on average 1556.6) internal successors, (7783), 5 states have internal predecessors, (7783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:51,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:51,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1545 of 1848 [2024-11-19 06:08:51,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:51,901 INFO L124 PetriNetUnfolderBase]: 0/1018 cut-off events. [2024-11-19 06:08:51,902 INFO L125 PetriNetUnfolderBase]: For 1270/1270 co-relation queries the response was YES. [2024-11-19 06:08:51,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1369 conditions, 1018 events. 0/1018 cut-off events. For 1270/1270 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 603 event pairs, 0 based on Foata normal form. 1/1018 useless extension candidates. Maximal degree in co-relation 0. Up to 152 conditions per place. [2024-11-19 06:08:51,903 INFO L140 encePairwiseOnDemand]: 1843/1848 looper letters, 56 selfloop transitions, 2 changer transitions 3/389 dead transitions. [2024-11-19 06:08:51,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 389 transitions, 1188 flow [2024-11-19 06:08:51,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:08:51,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 06:08:51,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7787 transitions. [2024-11-19 06:08:51,906 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8427489177489178 [2024-11-19 06:08:51,906 INFO L175 Difference]: Start difference. First operand has 510 places, 387 transitions, 1062 flow. Second operand 5 states and 7787 transitions. [2024-11-19 06:08:51,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 489 places, 389 transitions, 1188 flow [2024-11-19 06:08:51,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 389 transitions, 1187 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:51,911 INFO L231 Difference]: Finished difference. Result has 490 places, 386 transitions, 1067 flow [2024-11-19 06:08:51,911 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1848, PETRI_DIFFERENCE_MINUEND_FLOW=1061, PETRI_DIFFERENCE_MINUEND_PLACES=484, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1067, PETRI_PLACES=490, PETRI_TRANSITIONS=386} [2024-11-19 06:08:51,911 INFO L277 CegarLoopForPetriNet]: 516 programPoint places, -26 predicate places. [2024-11-19 06:08:51,911 INFO L471 AbstractCegarLoop]: Abstraction has has 490 places, 386 transitions, 1067 flow [2024-11-19 06:08:51,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1556.6) internal successors, (7783), 5 states have internal predecessors, (7783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:51,912 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:51,912 INFO L204 CegarLoopForPetriNet]: trace histogram [49, 49, 49, 49, 49, 49, 49, 48, 48, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:51,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2024-11-19 06:08:51,912 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2024-11-19 06:08:51,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:51,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1882934375, now seen corresponding path program 1 times [2024-11-19 06:08:51,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:51,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137621249] [2024-11-19 06:08:51,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:51,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:51,997 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 06:08:52,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 06:08:52,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 06:08:52,303 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 06:08:52,303 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (55 of 56 remaining) [2024-11-19 06:08:52,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2024-11-19 06:08:52,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2024-11-19 06:08:52,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2024-11-19 06:08:52,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2024-11-19 06:08:52,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2024-11-19 06:08:52,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (49 of 56 remaining) [2024-11-19 06:08:52,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2024-11-19 06:08:52,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (47 of 56 remaining) [2024-11-19 06:08:52,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (46 of 56 remaining) [2024-11-19 06:08:52,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2024-11-19 06:08:52,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2024-11-19 06:08:52,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2024-11-19 06:08:52,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2024-11-19 06:08:52,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2024-11-19 06:08:52,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2024-11-19 06:08:52,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2024-11-19 06:08:52,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2024-11-19 06:08:52,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2024-11-19 06:08:52,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 56 remaining) [2024-11-19 06:08:52,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2024-11-19 06:08:52,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2024-11-19 06:08:52,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2024-11-19 06:08:52,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2024-11-19 06:08:52,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2024-11-19 06:08:52,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2024-11-19 06:08:52,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2024-11-19 06:08:52,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2024-11-19 06:08:52,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2024-11-19 06:08:52,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 56 remaining) [2024-11-19 06:08:52,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 56 remaining) [2024-11-19 06:08:52,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2024-11-19 06:08:52,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 56 remaining) [2024-11-19 06:08:52,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 56 remaining) [2024-11-19 06:08:52,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 56 remaining) [2024-11-19 06:08:52,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 56 remaining) [2024-11-19 06:08:52,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2024-11-19 06:08:52,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2024-11-19 06:08:52,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2024-11-19 06:08:52,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2024-11-19 06:08:52,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2024-11-19 06:08:52,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2024-11-19 06:08:52,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2024-11-19 06:08:52,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2024-11-19 06:08:52,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2024-11-19 06:08:52,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2024-11-19 06:08:52,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2024-11-19 06:08:52,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2024-11-19 06:08:52,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2024-11-19 06:08:52,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2024-11-19 06:08:52,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2024-11-19 06:08:52,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2024-11-19 06:08:52,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2024-11-19 06:08:52,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2024-11-19 06:08:52,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2024-11-19 06:08:52,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2024-11-19 06:08:52,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2024-11-19 06:08:52,306 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 06:08:52,306 WARN L244 ceAbstractionStarter]: 48 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 06:08:52,306 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 49 thread instances. [2024-11-19 06:08:52,611 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 06:08:52,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1884 places, 1885 transitions, 8866 flow [2024-11-19 06:08:53,441 INFO L124 PetriNetUnfolderBase]: 252/3231 cut-off events. [2024-11-19 06:08:53,441 INFO L125 PetriNetUnfolderBase]: For 20776/20776 co-relation queries the response was YES. [2024-11-19 06:08:53,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4704 conditions, 3231 events. 252/3231 cut-off events. For 20776/20776 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 9360 event pairs, 0 based on Foata normal form. 0/2825 useless extension candidates. Maximal degree in co-relation 4605. Up to 100 conditions per place. [2024-11-19 06:08:53,504 INFO L82 GeneralOperation]: Start removeDead. Operand has 1884 places, 1885 transitions, 8866 flow [2024-11-19 06:08:53,511 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 525 places, 428 transitions, 3407 flow [2024-11-19 06:08:53,512 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:08:53,512 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;@1bc29dd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:08:53,512 INFO L334 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2024-11-19 06:08:53,513 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 06:08:53,513 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 06:08:53,513 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 06:08:53,513 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:53,513 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:53,513 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2024-11-19 06:08:53,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:53,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1932544003, now seen corresponding path program 1 times [2024-11-19 06:08:53,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:53,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326336300] [2024-11-19 06:08:53,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:53,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:53,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:53,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:53,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:53,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326336300] [2024-11-19 06:08:53,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326336300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:53,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:53,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:53,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158755171] [2024-11-19 06:08:53,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:53,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:53,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:53,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:53,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:53,688 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1529 out of 1885 [2024-11-19 06:08:53,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 428 transitions, 3407 flow. Second operand has 3 states, 3 states have (on average 1530.3333333333333) internal successors, (4591), 3 states have internal predecessors, (4591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:53,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:53,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1529 of 1885 [2024-11-19 06:08:53,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:54,338 INFO L124 PetriNetUnfolderBase]: 101/2479 cut-off events. [2024-11-19 06:08:54,339 INFO L125 PetriNetUnfolderBase]: For 22051/22051 co-relation queries the response was YES. [2024-11-19 06:08:54,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4262 conditions, 2479 events. 101/2479 cut-off events. For 22051/22051 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 6920 event pairs, 50 based on Foata normal form. 51/2325 useless extension candidates. Maximal degree in co-relation 4107. Up to 356 conditions per place. [2024-11-19 06:08:54,387 INFO L140 encePairwiseOnDemand]: 1879/1885 looper letters, 59 selfloop transitions, 2 changer transitions 1/424 dead transitions. [2024-11-19 06:08:54,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 526 places, 424 transitions, 3521 flow [2024-11-19 06:08:54,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:54,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:54,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4652 transitions. [2024-11-19 06:08:54,389 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8226348364279399 [2024-11-19 06:08:54,389 INFO L175 Difference]: Start difference. First operand has 525 places, 428 transitions, 3407 flow. Second operand 3 states and 4652 transitions. [2024-11-19 06:08:54,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 526 places, 424 transitions, 3521 flow [2024-11-19 06:08:54,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 525 places, 424 transitions, 1264 flow, removed 1128 selfloop flow, removed 1 redundant places. [2024-11-19 06:08:54,421 INFO L231 Difference]: Finished difference. Result has 525 places, 423 transitions, 1144 flow [2024-11-19 06:08:54,422 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1885, PETRI_DIFFERENCE_MINUEND_FLOW=1142, PETRI_DIFFERENCE_MINUEND_PLACES=523, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1144, PETRI_PLACES=525, PETRI_TRANSITIONS=423} [2024-11-19 06:08:54,422 INFO L277 CegarLoopForPetriNet]: 525 programPoint places, 0 predicate places. [2024-11-19 06:08:54,422 INFO L471 AbstractCegarLoop]: Abstraction has has 525 places, 423 transitions, 1144 flow [2024-11-19 06:08:54,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1530.3333333333333) internal successors, (4591), 3 states have internal predecessors, (4591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:54,422 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:54,422 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:54,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2024-11-19 06:08:54,422 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2024-11-19 06:08:54,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:54,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1411238650, now seen corresponding path program 1 times [2024-11-19 06:08:54,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:54,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614019130] [2024-11-19 06:08:54,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:54,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:54,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:54,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:08:54,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:54,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614019130] [2024-11-19 06:08:54,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614019130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:54,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:54,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:08:54,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403800703] [2024-11-19 06:08:54,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:54,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:08:54,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:54,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:08:54,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:08:54,568 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1429 out of 1885 [2024-11-19 06:08:54,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 423 transitions, 1144 flow. Second operand has 3 states, 3 states have (on average 1430.0) internal successors, (4290), 3 states have internal predecessors, (4290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:54,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:54,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1429 of 1885 [2024-11-19 06:08:54,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 06:08:55,146 INFO L124 PetriNetUnfolderBase]: 51/2225 cut-off events. [2024-11-19 06:08:55,146 INFO L125 PetriNetUnfolderBase]: For 1322/1322 co-relation queries the response was YES. [2024-11-19 06:08:55,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2781 conditions, 2225 events. 51/2225 cut-off events. For 1322/1322 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5163 event pairs, 0 based on Foata normal form. 50/2174 useless extension candidates. Maximal degree in co-relation 2708. Up to 255 conditions per place. [2024-11-19 06:08:55,182 INFO L140 encePairwiseOnDemand]: 1879/1885 looper letters, 57 selfloop transitions, 1 changer transitions 24/418 dead transitions. [2024-11-19 06:08:55,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 418 transitions, 1254 flow [2024-11-19 06:08:55,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:08:55,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 06:08:55,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4352 transitions. [2024-11-19 06:08:55,184 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7695844385499558 [2024-11-19 06:08:55,184 INFO L175 Difference]: Start difference. First operand has 525 places, 423 transitions, 1144 flow. Second operand 3 states and 4352 transitions. [2024-11-19 06:08:55,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 418 transitions, 1254 flow [2024-11-19 06:08:55,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 519 places, 418 transitions, 1250 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 06:08:55,188 INFO L231 Difference]: Finished difference. Result has 519 places, 394 transitions, 1082 flow [2024-11-19 06:08:55,189 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1885, PETRI_DIFFERENCE_MINUEND_FLOW=1130, PETRI_DIFFERENCE_MINUEND_PLACES=517, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1082, PETRI_PLACES=519, PETRI_TRANSITIONS=394} [2024-11-19 06:08:55,189 INFO L277 CegarLoopForPetriNet]: 525 programPoint places, -6 predicate places. [2024-11-19 06:08:55,189 INFO L471 AbstractCegarLoop]: Abstraction has has 519 places, 394 transitions, 1082 flow [2024-11-19 06:08:55,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1430.0) internal successors, (4290), 3 states have internal predecessors, (4290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:55,189 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 06:08:55,189 INFO L204 CegarLoopForPetriNet]: trace histogram [50, 50, 50, 50, 50, 50, 50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:08:55,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2024-11-19 06:08:55,189 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2024-11-19 06:08:55,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:08:55,190 INFO L85 PathProgramCache]: Analyzing trace with hash -2062758941, now seen corresponding path program 1 times [2024-11-19 06:08:55,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:08:55,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930432346] [2024-11-19 06:08:55,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:08:55,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:08:55,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:08:55,359 INFO L134 CoverageAnalysis]: Checked inductivity of 16856 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 16709 trivial. 0 not checked. [2024-11-19 06:08:55,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:08:55,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930432346] [2024-11-19 06:08:55,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930432346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:08:55,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:08:55,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:08:55,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96074403] [2024-11-19 06:08:55,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:08:55,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:08:55,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:08:55,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:08:55,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:08:55,468 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1576 out of 1885 [2024-11-19 06:08:55,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 519 places, 394 transitions, 1082 flow. Second operand has 5 states, 5 states have (on average 1587.8) internal successors, (7939), 5 states have internal predecessors, (7939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 06:08:55,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 06:08:55,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1576 of 1885 [2024-11-19 06:08:55,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand