./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid-join.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 e58f19518df0581d95f13f906b8c44b8c282310d0c51162e45cefa58addde8de --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 10:03:54,493 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 10:03:54,549 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 10:03:54,554 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 10:03:54,554 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 10:03:54,572 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 10:03:54,573 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 10:03:54,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 10:03:54,573 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 10:03:54,574 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 10:03:54,574 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 10:03:54,574 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 10:03:54,575 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 10:03:54,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 10:03:54,575 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 10:03:54,576 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 10:03:54,576 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 10:03:54,577 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 10:03:54,577 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 10:03:54,577 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 10:03:54,578 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 10:03:54,578 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 10:03:54,578 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 10:03:54,579 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 10:03:54,579 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 10:03:54,579 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 10:03:54,580 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 10:03:54,580 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 10:03:54,580 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 10:03:54,580 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 10:03:54,581 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 10:03:54,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 10:03:54,582 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 10:03:54,582 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 10:03:54,582 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 10:03:54,582 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 10:03:54,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 10:03:54,583 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 10:03:54,583 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 10:03:54,584 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 10:03:54,584 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 10:03:54,586 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e58f19518df0581d95f13f906b8c44b8c282310d0c51162e45cefa58addde8de [2024-10-13 10:03:54,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 10:03:54,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 10:03:54,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 10:03:54,879 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 10:03:54,879 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 10:03:54,881 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid-join.i [2024-10-13 10:03:56,408 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 10:03:56,670 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 10:03:56,672 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid-join.i [2024-10-13 10:03:56,697 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e88272f2e/96c545988a564893bc6e83459b1bc233/FLAG9d3cd2de1 [2024-10-13 10:03:56,717 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e88272f2e/96c545988a564893bc6e83459b1bc233 [2024-10-13 10:03:56,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 10:03:56,721 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 10:03:56,722 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 10:03:56,722 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 10:03:56,729 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 10:03:56,729 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:03:56" (1/1) ... [2024-10-13 10:03:56,730 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b4b71b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:56, skipping insertion in model container [2024-10-13 10:03:56,732 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:03:56" (1/1) ... [2024-10-13 10:03:56,787 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 10:03:57,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 10:03:57,278 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 10:03:57,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 10:03:57,391 INFO L204 MainTranslator]: Completed translation [2024-10-13 10:03:57,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:57 WrapperNode [2024-10-13 10:03:57,391 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 10:03:57,393 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 10:03:57,395 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 10:03:57,396 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 10:03:57,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:57" (1/1) ... [2024-10-13 10:03:57,427 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:57" (1/1) ... [2024-10-13 10:03:57,459 INFO L138 Inliner]: procedures = 267, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 94 [2024-10-13 10:03:57,459 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 10:03:57,460 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 10:03:57,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 10:03:57,464 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 10:03:57,472 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:57" (1/1) ... [2024-10-13 10:03:57,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:57" (1/1) ... [2024-10-13 10:03:57,476 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:57" (1/1) ... [2024-10-13 10:03:57,477 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:57" (1/1) ... [2024-10-13 10:03:57,488 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:57" (1/1) ... [2024-10-13 10:03:57,493 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:57" (1/1) ... [2024-10-13 10:03:57,495 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:57" (1/1) ... [2024-10-13 10:03:57,496 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:57" (1/1) ... [2024-10-13 10:03:57,499 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 10:03:57,501 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 10:03:57,501 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 10:03:57,501 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 10:03:57,502 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:57" (1/1) ... [2024-10-13 10:03:57,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 10:03:57,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:03:57,535 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) [2024-10-13 10:03:57,539 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 [2024-10-13 10:03:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-13 10:03:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 10:03:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 10:03:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-13 10:03:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-13 10:03:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 10:03:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 10:03:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 10:03:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-13 10:03:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 10:03:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-10-13 10:03:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-10-13 10:03:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 10:03:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 10:03:57,587 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 10:03:57,726 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 10:03:57,728 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 10:03:57,974 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 10:03:57,974 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 10:03:58,008 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 10:03:58,010 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 10:03:58,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:03:58 BoogieIcfgContainer [2024-10-13 10:03:58,011 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 10:03:58,013 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 10:03:58,013 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 10:03:58,017 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 10:03:58,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:03:56" (1/3) ... [2024-10-13 10:03:58,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e75e6c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:03:58, skipping insertion in model container [2024-10-13 10:03:58,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:57" (2/3) ... [2024-10-13 10:03:58,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e75e6c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:03:58, skipping insertion in model container [2024-10-13 10:03:58,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:03:58" (3/3) ... [2024-10-13 10:03:58,020 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-struct-tid-join.i [2024-10-13 10:03:58,037 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 10:03:58,037 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-10-13 10:03:58,037 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 10:03:58,102 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-13 10:03:58,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 121 transitions, 249 flow [2024-10-13 10:03:58,209 INFO L124 PetriNetUnfolderBase]: 6/174 cut-off events. [2024-10-13 10:03:58,209 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 10:03:58,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 174 events. 6/174 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 248 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 81. Up to 4 conditions per place. [2024-10-13 10:03:58,219 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 121 transitions, 249 flow [2024-10-13 10:03:58,225 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 121 transitions, 249 flow [2024-10-13 10:03:58,238 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 10:03:58,248 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;@1244db76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 10:03:58,249 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-10-13 10:03:58,264 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 10:03:58,266 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-10-13 10:03:58,266 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 10:03:58,267 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:58,267 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:58,268 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-13 10:03:58,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:58,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1252820999, now seen corresponding path program 1 times [2024-10-13 10:03:58,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:58,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014043587] [2024-10-13 10:03:58,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:58,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:58,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:58,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:58,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014043587] [2024-10-13 10:03:58,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014043587] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:58,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:03:58,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:03:58,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99009762] [2024-10-13 10:03:58,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:58,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:03:58,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:58,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:03:58,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:03:58,614 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 121 [2024-10-13 10:03:58,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 121 transitions, 249 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:58,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:58,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 121 [2024-10-13 10:03:58,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:58,675 INFO L124 PetriNetUnfolderBase]: 8/212 cut-off events. [2024-10-13 10:03:58,676 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2024-10-13 10:03:58,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 212 events. 8/212 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 526 event pairs, 1 based on Foata normal form. 8/197 useless extension candidates. Maximal degree in co-relation 142. Up to 16 conditions per place. [2024-10-13 10:03:58,678 INFO L140 encePairwiseOnDemand]: 114/121 looper letters, 8 selfloop transitions, 3 changer transitions 2/122 dead transitions. [2024-10-13 10:03:58,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 122 transitions, 275 flow [2024-10-13 10:03:58,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:03:58,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:03:58,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2024-10-13 10:03:58,693 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.953168044077135 [2024-10-13 10:03:58,696 INFO L175 Difference]: Start difference. First operand has 120 places, 121 transitions, 249 flow. Second operand 3 states and 346 transitions. [2024-10-13 10:03:58,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 122 transitions, 275 flow [2024-10-13 10:03:58,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 122 transitions, 275 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 10:03:58,708 INFO L231 Difference]: Finished difference. Result has 124 places, 119 transitions, 263 flow [2024-10-13 10:03:58,711 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=263, PETRI_PLACES=124, PETRI_TRANSITIONS=119} [2024-10-13 10:03:58,717 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 4 predicate places. [2024-10-13 10:03:58,718 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 119 transitions, 263 flow [2024-10-13 10:03:58,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:58,718 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:58,718 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:58,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 10:03:58,719 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-13 10:03:58,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:58,720 INFO L85 PathProgramCache]: Analyzing trace with hash 419048417, now seen corresponding path program 1 times [2024-10-13 10:03:58,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:58,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277824798] [2024-10-13 10:03:58,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:58,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:58,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:58,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:58,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277824798] [2024-10-13 10:03:58,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277824798] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:58,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:03:58,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:03:58,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284402128] [2024-10-13 10:03:58,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:58,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 10:03:58,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:58,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 10:03:58,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 10:03:59,116 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 121 [2024-10-13 10:03:59,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 119 transitions, 263 flow. Second operand has 5 states, 5 states have (on average 104.4) internal successors, (522), 5 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:59,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:59,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 121 [2024-10-13 10:03:59,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:59,220 INFO L124 PetriNetUnfolderBase]: 17/323 cut-off events. [2024-10-13 10:03:59,220 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-13 10:03:59,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 323 events. 17/323 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1142 event pairs, 1 based on Foata normal form. 1/299 useless extension candidates. Maximal degree in co-relation 311. Up to 49 conditions per place. [2024-10-13 10:03:59,223 INFO L140 encePairwiseOnDemand]: 113/121 looper letters, 15 selfloop transitions, 2 changer transitions 5/126 dead transitions. [2024-10-13 10:03:59,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 126 transitions, 321 flow [2024-10-13 10:03:59,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:03:59,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:03:59,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 641 transitions. [2024-10-13 10:03:59,229 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8829201101928374 [2024-10-13 10:03:59,229 INFO L175 Difference]: Start difference. First operand has 124 places, 119 transitions, 263 flow. Second operand 6 states and 641 transitions. [2024-10-13 10:03:59,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 126 transitions, 321 flow [2024-10-13 10:03:59,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 126 transitions, 315 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 10:03:59,234 INFO L231 Difference]: Finished difference. Result has 130 places, 119 transitions, 275 flow [2024-10-13 10:03:59,234 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=275, PETRI_PLACES=130, PETRI_TRANSITIONS=119} [2024-10-13 10:03:59,235 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 10 predicate places. [2024-10-13 10:03:59,235 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 119 transitions, 275 flow [2024-10-13 10:03:59,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.4) internal successors, (522), 5 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:59,236 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:59,236 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:59,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 10:03:59,237 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-13 10:03:59,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:59,237 INFO L85 PathProgramCache]: Analyzing trace with hash -182679660, now seen corresponding path program 1 times [2024-10-13 10:03:59,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:59,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399296092] [2024-10-13 10:03:59,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:59,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:59,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:59,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:59,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399296092] [2024-10-13 10:03:59,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399296092] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:59,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:03:59,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:03:59,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506442113] [2024-10-13 10:03:59,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:59,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:03:59,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:59,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:03:59,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:03:59,985 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 121 [2024-10-13 10:03:59,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 119 transitions, 275 flow. Second operand has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:59,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:59,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 121 [2024-10-13 10:03:59,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:00,072 INFO L124 PetriNetUnfolderBase]: 46/420 cut-off events. [2024-10-13 10:04:00,072 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-13 10:04:00,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 420 events. 46/420 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1893 event pairs, 35 based on Foata normal form. 0/380 useless extension candidates. Maximal degree in co-relation 510. Up to 117 conditions per place. [2024-10-13 10:04:00,076 INFO L140 encePairwiseOnDemand]: 115/121 looper letters, 36 selfloop transitions, 5 changer transitions 0/126 dead transitions. [2024-10-13 10:04:00,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 126 transitions, 371 flow [2024-10-13 10:04:00,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:04:00,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:04:00,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 546 transitions. [2024-10-13 10:04:00,080 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7520661157024794 [2024-10-13 10:04:00,080 INFO L175 Difference]: Start difference. First operand has 130 places, 119 transitions, 275 flow. Second operand 6 states and 546 transitions. [2024-10-13 10:04:00,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 126 transitions, 371 flow [2024-10-13 10:04:00,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 126 transitions, 357 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-10-13 10:04:00,084 INFO L231 Difference]: Finished difference. Result has 126 places, 118 transitions, 269 flow [2024-10-13 10:04:00,085 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=269, PETRI_PLACES=126, PETRI_TRANSITIONS=118} [2024-10-13 10:04:00,085 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 6 predicate places. [2024-10-13 10:04:00,086 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 118 transitions, 269 flow [2024-10-13 10:04:00,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:00,086 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:00,086 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:00,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 10:04:00,087 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-13 10:04:00,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:00,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1297227942, now seen corresponding path program 1 times [2024-10-13 10:04:00,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:00,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293873897] [2024-10-13 10:04:00,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:00,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:00,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:00,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:00,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293873897] [2024-10-13 10:04:00,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293873897] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:00,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:00,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:04:00,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719577421] [2024-10-13 10:04:00,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:00,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:04:00,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:00,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:04:00,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:04:00,650 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 121 [2024-10-13 10:04:00,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 118 transitions, 269 flow. Second operand has 6 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:00,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:00,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 121 [2024-10-13 10:04:00,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:00,714 INFO L124 PetriNetUnfolderBase]: 46/346 cut-off events. [2024-10-13 10:04:00,715 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-13 10:04:00,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 540 conditions, 346 events. 46/346 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1567 event pairs, 19 based on Foata normal form. 0/326 useless extension candidates. Maximal degree in co-relation 407. Up to 112 conditions per place. [2024-10-13 10:04:00,717 INFO L140 encePairwiseOnDemand]: 115/121 looper letters, 34 selfloop transitions, 5 changer transitions 0/125 dead transitions. [2024-10-13 10:04:00,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 125 transitions, 361 flow [2024-10-13 10:04:00,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:04:00,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:04:00,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 556 transitions. [2024-10-13 10:04:00,719 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7658402203856749 [2024-10-13 10:04:00,719 INFO L175 Difference]: Start difference. First operand has 126 places, 118 transitions, 269 flow. Second operand 6 states and 556 transitions. [2024-10-13 10:04:00,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 125 transitions, 361 flow [2024-10-13 10:04:00,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 125 transitions, 351 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 10:04:00,723 INFO L231 Difference]: Finished difference. Result has 125 places, 117 transitions, 267 flow [2024-10-13 10:04:00,723 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=267, PETRI_PLACES=125, PETRI_TRANSITIONS=117} [2024-10-13 10:04:00,724 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 5 predicate places. [2024-10-13 10:04:00,724 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 117 transitions, 267 flow [2024-10-13 10:04:00,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:00,725 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:00,725 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:00,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 10:04:00,725 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-13 10:04:00,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:00,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1602367110, now seen corresponding path program 1 times [2024-10-13 10:04:00,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:00,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771846560] [2024-10-13 10:04:00,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:00,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:00,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:00,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:00,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771846560] [2024-10-13 10:04:00,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771846560] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:00,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:00,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:04:00,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231935398] [2024-10-13 10:04:00,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:00,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:04:00,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:00,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:04:00,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:04:00,802 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 121 [2024-10-13 10:04:00,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 117 transitions, 267 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:00,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:00,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 121 [2024-10-13 10:04:00,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:00,833 INFO L124 PetriNetUnfolderBase]: 5/216 cut-off events. [2024-10-13 10:04:00,834 INFO L125 PetriNetUnfolderBase]: For 18/31 co-relation queries the response was YES. [2024-10-13 10:04:00,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 216 events. 5/216 cut-off events. For 18/31 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 593 event pairs, 3 based on Foata normal form. 1/202 useless extension candidates. Maximal degree in co-relation 212. Up to 25 conditions per place. [2024-10-13 10:04:00,835 INFO L140 encePairwiseOnDemand]: 116/121 looper letters, 8 selfloop transitions, 4 changer transitions 3/120 dead transitions. [2024-10-13 10:04:00,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 120 transitions, 303 flow [2024-10-13 10:04:00,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:04:00,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:04:00,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2024-10-13 10:04:00,837 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.931129476584022 [2024-10-13 10:04:00,837 INFO L175 Difference]: Start difference. First operand has 125 places, 117 transitions, 267 flow. Second operand 3 states and 338 transitions. [2024-10-13 10:04:00,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 120 transitions, 303 flow [2024-10-13 10:04:00,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 120 transitions, 293 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 10:04:00,840 INFO L231 Difference]: Finished difference. Result has 124 places, 117 transitions, 279 flow [2024-10-13 10:04:00,840 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=279, PETRI_PLACES=124, PETRI_TRANSITIONS=117} [2024-10-13 10:04:00,841 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 4 predicate places. [2024-10-13 10:04:00,841 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 117 transitions, 279 flow [2024-10-13 10:04:00,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:00,842 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:00,842 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:00,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 10:04:00,842 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-13 10:04:00,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:00,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1005027146, now seen corresponding path program 1 times [2024-10-13 10:04:00,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:00,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811053054] [2024-10-13 10:04:00,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:00,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:00,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:01,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 10:04:01,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:01,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811053054] [2024-10-13 10:04:01,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811053054] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:01,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:01,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:04:01,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956764938] [2024-10-13 10:04:01,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:01,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:04:01,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:01,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:04:01,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:04:01,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 121 [2024-10-13 10:04:01,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 117 transitions, 279 flow. Second operand has 6 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:01,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:01,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 121 [2024-10-13 10:04:01,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:01,471 INFO L124 PetriNetUnfolderBase]: 33/406 cut-off events. [2024-10-13 10:04:01,471 INFO L125 PetriNetUnfolderBase]: For 66/69 co-relation queries the response was YES. [2024-10-13 10:04:01,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 635 conditions, 406 events. 33/406 cut-off events. For 66/69 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1839 event pairs, 23 based on Foata normal form. 0/391 useless extension candidates. Maximal degree in co-relation 511. Up to 79 conditions per place. [2024-10-13 10:04:01,473 INFO L140 encePairwiseOnDemand]: 114/121 looper letters, 31 selfloop transitions, 5 changer transitions 0/123 dead transitions. [2024-10-13 10:04:01,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 123 transitions, 363 flow [2024-10-13 10:04:01,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:04:01,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:04:01,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 566 transitions. [2024-10-13 10:04:01,475 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7796143250688705 [2024-10-13 10:04:01,475 INFO L175 Difference]: Start difference. First operand has 124 places, 117 transitions, 279 flow. Second operand 6 states and 566 transitions. [2024-10-13 10:04:01,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 123 transitions, 363 flow [2024-10-13 10:04:01,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 123 transitions, 355 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 10:04:01,479 INFO L231 Difference]: Finished difference. Result has 125 places, 115 transitions, 277 flow [2024-10-13 10:04:01,479 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=277, PETRI_PLACES=125, PETRI_TRANSITIONS=115} [2024-10-13 10:04:01,480 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 5 predicate places. [2024-10-13 10:04:01,480 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 115 transitions, 277 flow [2024-10-13 10:04:01,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:01,481 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:01,481 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:01,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 10:04:01,482 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-13 10:04:01,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:01,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1993570666, now seen corresponding path program 1 times [2024-10-13 10:04:01,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:01,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416675553] [2024-10-13 10:04:01,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:01,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:01,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:01,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:01,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416675553] [2024-10-13 10:04:01,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416675553] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 10:04:01,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411393724] [2024-10-13 10:04:01,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:01,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:04:01,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:04:01,591 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 10:04:01,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 10:04:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:01,695 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 10:04:01,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:04:01,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:01,799 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 10:04:01,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:01,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411393724] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 10:04:01,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 10:04:01,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-10-13 10:04:01,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692872691] [2024-10-13 10:04:01,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 10:04:01,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 10:04:01,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:01,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 10:04:01,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-13 10:04:02,183 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 121 [2024-10-13 10:04:02,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 115 transitions, 277 flow. Second operand has 9 states, 9 states have (on average 103.22222222222223) internal successors, (929), 9 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:02,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:02,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 121 [2024-10-13 10:04:02,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:02,271 INFO L124 PetriNetUnfolderBase]: 12/243 cut-off events. [2024-10-13 10:04:02,271 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-13 10:04:02,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 243 events. 12/243 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 615 event pairs, 0 based on Foata normal form. 0/235 useless extension candidates. Maximal degree in co-relation 219. Up to 18 conditions per place. [2024-10-13 10:04:02,273 INFO L140 encePairwiseOnDemand]: 111/121 looper letters, 14 selfloop transitions, 8 changer transitions 9/119 dead transitions. [2024-10-13 10:04:02,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 119 transitions, 323 flow [2024-10-13 10:04:02,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 10:04:02,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 10:04:02,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 834 transitions. [2024-10-13 10:04:02,275 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8615702479338843 [2024-10-13 10:04:02,275 INFO L175 Difference]: Start difference. First operand has 125 places, 115 transitions, 277 flow. Second operand 8 states and 834 transitions. [2024-10-13 10:04:02,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 119 transitions, 323 flow [2024-10-13 10:04:02,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 119 transitions, 299 flow, removed 4 selfloop flow, removed 9 redundant places. [2024-10-13 10:04:02,280 INFO L231 Difference]: Finished difference. Result has 123 places, 104 transitions, 247 flow [2024-10-13 10:04:02,280 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=247, PETRI_PLACES=123, PETRI_TRANSITIONS=104} [2024-10-13 10:04:02,282 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 3 predicate places. [2024-10-13 10:04:02,282 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 104 transitions, 247 flow [2024-10-13 10:04:02,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 103.22222222222223) internal successors, (929), 9 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:02,283 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:02,284 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:02,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-13 10:04:02,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:04:02,489 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-13 10:04:02,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:02,490 INFO L85 PathProgramCache]: Analyzing trace with hash -191687227, now seen corresponding path program 1 times [2024-10-13 10:04:02,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:02,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309606500] [2024-10-13 10:04:02,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:02,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:02,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 10:04:02,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:02,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309606500] [2024-10-13 10:04:02,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309606500] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:02,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:02,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:04:02,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846174640] [2024-10-13 10:04:02,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:02,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:04:02,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:02,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:04:02,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:04:03,027 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 121 [2024-10-13 10:04:03,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 104 transitions, 247 flow. Second operand has 6 states, 6 states have (on average 98.66666666666667) internal successors, (592), 6 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:03,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:03,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 121 [2024-10-13 10:04:03,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:03,081 INFO L124 PetriNetUnfolderBase]: 28/299 cut-off events. [2024-10-13 10:04:03,081 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-13 10:04:03,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 299 events. 28/299 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1047 event pairs, 18 based on Foata normal form. 0/294 useless extension candidates. Maximal degree in co-relation 305. Up to 60 conditions per place. [2024-10-13 10:04:03,084 INFO L140 encePairwiseOnDemand]: 115/121 looper letters, 12 selfloop transitions, 0 changer transitions 39/111 dead transitions. [2024-10-13 10:04:03,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 111 transitions, 317 flow [2024-10-13 10:04:03,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:04:03,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:04:03,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 605 transitions. [2024-10-13 10:04:03,089 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2024-10-13 10:04:03,089 INFO L175 Difference]: Start difference. First operand has 123 places, 104 transitions, 247 flow. Second operand 6 states and 605 transitions. [2024-10-13 10:04:03,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 111 transitions, 317 flow [2024-10-13 10:04:03,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 111 transitions, 306 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-10-13 10:04:03,093 INFO L231 Difference]: Finished difference. Result has 113 places, 72 transitions, 156 flow [2024-10-13 10:04:03,094 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=156, PETRI_PLACES=113, PETRI_TRANSITIONS=72} [2024-10-13 10:04:03,095 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, -7 predicate places. [2024-10-13 10:04:03,095 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 72 transitions, 156 flow [2024-10-13 10:04:03,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.66666666666667) internal successors, (592), 6 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:03,098 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:03,098 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-13 10:04:03,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 10:04:03,098 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-13 10:04:03,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:03,099 INFO L85 PathProgramCache]: Analyzing trace with hash -751275198, now seen corresponding path program 1 times [2024-10-13 10:04:03,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:03,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514554889] [2024-10-13 10:04:03,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:03,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 10:04:03,133 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 10:04:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 10:04:03,189 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 10:04:03,189 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 10:04:03,191 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-10-13 10:04:03,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-10-13 10:04:03,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-10-13 10:04:03,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-10-13 10:04:03,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-10-13 10:04:03,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-10-13 10:04:03,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-10-13 10:04:03,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-10-13 10:04:03,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-10-13 10:04:03,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 10:04:03,196 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:03,202 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 10:04:03,202 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-13 10:04:03,224 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-13 10:04:03,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 139 transitions, 294 flow [2024-10-13 10:04:03,256 INFO L124 PetriNetUnfolderBase]: 11/308 cut-off events. [2024-10-13 10:04:03,257 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-13 10:04:03,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 308 events. 11/308 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 578 event pairs, 0 based on Foata normal form. 0/270 useless extension candidates. Maximal degree in co-relation 176. Up to 8 conditions per place. [2024-10-13 10:04:03,258 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 139 transitions, 294 flow [2024-10-13 10:04:03,260 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 139 transitions, 294 flow [2024-10-13 10:04:03,262 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 10:04:03,264 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;@1244db76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 10:04:03,264 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-10-13 10:04:03,268 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 10:04:03,268 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-10-13 10:04:03,268 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 10:04:03,268 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:03,268 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:03,269 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-13 10:04:03,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:03,269 INFO L85 PathProgramCache]: Analyzing trace with hash 800780135, now seen corresponding path program 1 times [2024-10-13 10:04:03,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:03,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216793229] [2024-10-13 10:04:03,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:03,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:03,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:03,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:03,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216793229] [2024-10-13 10:04:03,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216793229] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:03,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:03,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:04:03,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051476283] [2024-10-13 10:04:03,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:03,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:04:03,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:03,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:04:03,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:04:03,311 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 139 [2024-10-13 10:04:03,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 139 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:03,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:03,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 139 [2024-10-13 10:04:03,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:03,469 INFO L124 PetriNetUnfolderBase]: 119/878 cut-off events. [2024-10-13 10:04:03,470 INFO L125 PetriNetUnfolderBase]: For 44/87 co-relation queries the response was YES. [2024-10-13 10:04:03,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1150 conditions, 878 events. 119/878 cut-off events. For 44/87 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4812 event pairs, 50 based on Foata normal form. 36/808 useless extension candidates. Maximal degree in co-relation 837. Up to 139 conditions per place. [2024-10-13 10:04:03,477 INFO L140 encePairwiseOnDemand]: 131/139 looper letters, 16 selfloop transitions, 4 changer transitions 1/143 dead transitions. [2024-10-13 10:04:03,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 143 transitions, 342 flow [2024-10-13 10:04:03,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:04:03,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:04:03,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 393 transitions. [2024-10-13 10:04:03,479 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9424460431654677 [2024-10-13 10:04:03,479 INFO L175 Difference]: Start difference. First operand has 139 places, 139 transitions, 294 flow. Second operand 3 states and 393 transitions. [2024-10-13 10:04:03,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 143 transitions, 342 flow [2024-10-13 10:04:03,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 143 transitions, 342 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 10:04:03,484 INFO L231 Difference]: Finished difference. Result has 143 places, 138 transitions, 316 flow [2024-10-13 10:04:03,484 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=316, PETRI_PLACES=143, PETRI_TRANSITIONS=138} [2024-10-13 10:04:03,485 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 4 predicate places. [2024-10-13 10:04:03,485 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 138 transitions, 316 flow [2024-10-13 10:04:03,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:03,486 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:03,486 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:03,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 10:04:03,487 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-13 10:04:03,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:03,488 INFO L85 PathProgramCache]: Analyzing trace with hash -200520543, now seen corresponding path program 1 times [2024-10-13 10:04:03,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:03,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050336608] [2024-10-13 10:04:03,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:03,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:03,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:03,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:03,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050336608] [2024-10-13 10:04:03,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050336608] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:03,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:03,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:04:03,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810653719] [2024-10-13 10:04:03,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:03,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 10:04:03,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:03,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 10:04:03,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 10:04:03,671 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 139 [2024-10-13 10:04:03,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 138 transitions, 316 flow. Second operand has 5 states, 5 states have (on average 118.4) internal successors, (592), 5 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:03,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:03,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 139 [2024-10-13 10:04:03,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:03,839 INFO L124 PetriNetUnfolderBase]: 189/1374 cut-off events. [2024-10-13 10:04:03,839 INFO L125 PetriNetUnfolderBase]: For 72/73 co-relation queries the response was YES. [2024-10-13 10:04:03,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1874 conditions, 1374 events. 189/1374 cut-off events. For 72/73 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 9468 event pairs, 131 based on Foata normal form. 1/1256 useless extension candidates. Maximal degree in co-relation 1273. Up to 314 conditions per place. [2024-10-13 10:04:03,851 INFO L140 encePairwiseOnDemand]: 131/139 looper letters, 20 selfloop transitions, 2 changer transitions 5/146 dead transitions. [2024-10-13 10:04:03,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 146 transitions, 386 flow [2024-10-13 10:04:03,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:04:03,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:04:03,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 730 transitions. [2024-10-13 10:04:03,854 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8752997601918465 [2024-10-13 10:04:03,854 INFO L175 Difference]: Start difference. First operand has 143 places, 138 transitions, 316 flow. Second operand 6 states and 730 transitions. [2024-10-13 10:04:03,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 146 transitions, 386 flow [2024-10-13 10:04:03,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 146 transitions, 378 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 10:04:03,858 INFO L231 Difference]: Finished difference. Result has 149 places, 139 transitions, 330 flow [2024-10-13 10:04:03,859 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=330, PETRI_PLACES=149, PETRI_TRANSITIONS=139} [2024-10-13 10:04:03,859 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 10 predicate places. [2024-10-13 10:04:03,859 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 139 transitions, 330 flow [2024-10-13 10:04:03,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.4) internal successors, (592), 5 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:03,860 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:03,860 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:03,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 10:04:03,861 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-13 10:04:03,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:03,861 INFO L85 PathProgramCache]: Analyzing trace with hash 2085519199, now seen corresponding path program 1 times [2024-10-13 10:04:03,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:03,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410728571] [2024-10-13 10:04:03,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:03,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:03,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:04,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:04,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:04,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410728571] [2024-10-13 10:04:04,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410728571] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:04,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:04,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:04:04,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089236159] [2024-10-13 10:04:04,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:04,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:04:04,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:04,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:04:04,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:04:04,227 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 139 [2024-10-13 10:04:04,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 139 transitions, 330 flow. Second operand has 6 states, 6 states have (on average 99.5) internal successors, (597), 6 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:04,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:04,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 139 [2024-10-13 10:04:04,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:04,565 INFO L124 PetriNetUnfolderBase]: 448/2416 cut-off events. [2024-10-13 10:04:04,566 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2024-10-13 10:04:04,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3521 conditions, 2416 events. 448/2416 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 20025 event pairs, 342 based on Foata normal form. 0/2149 useless extension candidates. Maximal degree in co-relation 3409. Up to 657 conditions per place. [2024-10-13 10:04:04,584 INFO L140 encePairwiseOnDemand]: 133/139 looper letters, 49 selfloop transitions, 5 changer transitions 0/154 dead transitions. [2024-10-13 10:04:04,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 154 transitions, 468 flow [2024-10-13 10:04:04,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:04:04,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:04:04,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 642 transitions. [2024-10-13 10:04:04,586 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7697841726618705 [2024-10-13 10:04:04,586 INFO L175 Difference]: Start difference. First operand has 149 places, 139 transitions, 330 flow. Second operand 6 states and 642 transitions. [2024-10-13 10:04:04,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 154 transitions, 468 flow [2024-10-13 10:04:04,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 154 transitions, 456 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-13 10:04:04,590 INFO L231 Difference]: Finished difference. Result has 146 places, 138 transitions, 326 flow [2024-10-13 10:04:04,591 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=326, PETRI_PLACES=146, PETRI_TRANSITIONS=138} [2024-10-13 10:04:04,591 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 7 predicate places. [2024-10-13 10:04:04,591 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 138 transitions, 326 flow [2024-10-13 10:04:04,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.5) internal successors, (597), 6 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:04,592 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:04,592 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:04,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 10:04:04,592 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-13 10:04:04,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:04,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1065155985, now seen corresponding path program 1 times [2024-10-13 10:04:04,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:04,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421455572] [2024-10-13 10:04:04,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:04,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:04,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:04,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:04,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421455572] [2024-10-13 10:04:04,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421455572] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:04,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:04,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:04:04,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419214093] [2024-10-13 10:04:04,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:04,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:04:04,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:04,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:04:04,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:04:05,004 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 139 [2024-10-13 10:04:05,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 138 transitions, 326 flow. Second operand has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:05,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:05,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 139 [2024-10-13 10:04:05,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:05,286 INFO L124 PetriNetUnfolderBase]: 446/2418 cut-off events. [2024-10-13 10:04:05,287 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-10-13 10:04:05,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3494 conditions, 2418 events. 446/2418 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 20034 event pairs, 264 based on Foata normal form. 0/2139 useless extension candidates. Maximal degree in co-relation 2137. Up to 633 conditions per place. [2024-10-13 10:04:05,305 INFO L140 encePairwiseOnDemand]: 133/139 looper letters, 46 selfloop transitions, 5 changer transitions 0/153 dead transitions. [2024-10-13 10:04:05,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 153 transitions, 458 flow [2024-10-13 10:04:05,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:04:05,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:04:05,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 652 transitions. [2024-10-13 10:04:05,307 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7817745803357314 [2024-10-13 10:04:05,307 INFO L175 Difference]: Start difference. First operand has 146 places, 138 transitions, 326 flow. Second operand 6 states and 652 transitions. [2024-10-13 10:04:05,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 153 transitions, 458 flow [2024-10-13 10:04:05,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 153 transitions, 448 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 10:04:05,311 INFO L231 Difference]: Finished difference. Result has 145 places, 137 transitions, 324 flow [2024-10-13 10:04:05,311 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=145, PETRI_TRANSITIONS=137} [2024-10-13 10:04:05,312 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 6 predicate places. [2024-10-13 10:04:05,312 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 137 transitions, 324 flow [2024-10-13 10:04:05,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:05,313 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:05,313 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:05,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 10:04:05,313 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-13 10:04:05,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:05,314 INFO L85 PathProgramCache]: Analyzing trace with hash 481607029, now seen corresponding path program 1 times [2024-10-13 10:04:05,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:05,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963027256] [2024-10-13 10:04:05,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:05,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:05,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:05,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:05,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963027256] [2024-10-13 10:04:05,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963027256] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:05,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:05,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:04:05,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381889596] [2024-10-13 10:04:05,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:05,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:04:05,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:05,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:04:05,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:04:05,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 139 [2024-10-13 10:04:05,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 137 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:05,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:05,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 139 [2024-10-13 10:04:05,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:05,533 INFO L124 PetriNetUnfolderBase]: 165/1189 cut-off events. [2024-10-13 10:04:05,534 INFO L125 PetriNetUnfolderBase]: For 192/359 co-relation queries the response was YES. [2024-10-13 10:04:05,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1757 conditions, 1189 events. 165/1189 cut-off events. For 192/359 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 8130 event pairs, 88 based on Foata normal form. 3/1059 useless extension candidates. Maximal degree in co-relation 1425. Up to 269 conditions per place. [2024-10-13 10:04:05,542 INFO L140 encePairwiseOnDemand]: 133/139 looper letters, 19 selfloop transitions, 7 changer transitions 0/146 dead transitions. [2024-10-13 10:04:05,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 146 transitions, 408 flow [2024-10-13 10:04:05,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:04:05,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:04:05,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 387 transitions. [2024-10-13 10:04:05,544 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9280575539568345 [2024-10-13 10:04:05,544 INFO L175 Difference]: Start difference. First operand has 145 places, 137 transitions, 324 flow. Second operand 3 states and 387 transitions. [2024-10-13 10:04:05,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 146 transitions, 408 flow [2024-10-13 10:04:05,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 146 transitions, 398 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 10:04:05,549 INFO L231 Difference]: Finished difference. Result has 144 places, 142 transitions, 370 flow [2024-10-13 10:04:05,549 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=370, PETRI_PLACES=144, PETRI_TRANSITIONS=142} [2024-10-13 10:04:05,550 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 5 predicate places. [2024-10-13 10:04:05,550 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 142 transitions, 370 flow [2024-10-13 10:04:05,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:05,553 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:05,553 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:05,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 10:04:05,553 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-13 10:04:05,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:05,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1752921541, now seen corresponding path program 1 times [2024-10-13 10:04:05,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:05,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137448728] [2024-10-13 10:04:05,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:05,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:05,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 10:04:05,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:05,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137448728] [2024-10-13 10:04:05,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137448728] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:05,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:05,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:04:05,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125583006] [2024-10-13 10:04:05,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:05,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:04:05,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:05,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:04:05,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:04:06,021 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 139 [2024-10-13 10:04:06,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 142 transitions, 370 flow. Second operand has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:06,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:06,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 139 [2024-10-13 10:04:06,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:06,322 INFO L124 PetriNetUnfolderBase]: 463/2595 cut-off events. [2024-10-13 10:04:06,323 INFO L125 PetriNetUnfolderBase]: For 408/466 co-relation queries the response was YES. [2024-10-13 10:04:06,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4121 conditions, 2595 events. 463/2595 cut-off events. For 408/466 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 22408 event pairs, 251 based on Foata normal form. 3/2378 useless extension candidates. Maximal degree in co-relation 3254. Up to 490 conditions per place. [2024-10-13 10:04:06,342 INFO L140 encePairwiseOnDemand]: 132/139 looper letters, 43 selfloop transitions, 5 changer transitions 0/156 dead transitions. [2024-10-13 10:04:06,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 156 transitions, 494 flow [2024-10-13 10:04:06,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:04:06,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:04:06,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 662 transitions. [2024-10-13 10:04:06,344 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7937649880095923 [2024-10-13 10:04:06,345 INFO L175 Difference]: Start difference. First operand has 144 places, 142 transitions, 370 flow. Second operand 6 states and 662 transitions. [2024-10-13 10:04:06,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 156 transitions, 494 flow [2024-10-13 10:04:06,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 156 transitions, 480 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 10:04:06,350 INFO L231 Difference]: Finished difference. Result has 145 places, 140 transitions, 362 flow [2024-10-13 10:04:06,350 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=362, PETRI_PLACES=145, PETRI_TRANSITIONS=140} [2024-10-13 10:04:06,351 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 6 predicate places. [2024-10-13 10:04:06,352 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 140 transitions, 362 flow [2024-10-13 10:04:06,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:06,352 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:06,352 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:06,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-13 10:04:06,353 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-13 10:04:06,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:06,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1171198917, now seen corresponding path program 1 times [2024-10-13 10:04:06,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:06,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80860258] [2024-10-13 10:04:06,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:06,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:06,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:06,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:06,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80860258] [2024-10-13 10:04:06,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80860258] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 10:04:06,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061592801] [2024-10-13 10:04:06,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:06,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:04:06,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:04:06,451 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 10:04:06,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 10:04:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:06,561 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 10:04:06,563 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:04:06,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:06,639 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 10:04:06,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:06,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061592801] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 10:04:06,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 10:04:06,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-10-13 10:04:06,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313873990] [2024-10-13 10:04:06,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 10:04:06,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 10:04:06,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:06,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 10:04:06,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-13 10:04:06,914 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 139 [2024-10-13 10:04:06,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 140 transitions, 362 flow. Second operand has 9 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:06,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:06,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 139 [2024-10-13 10:04:06,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:07,139 INFO L124 PetriNetUnfolderBase]: 162/1358 cut-off events. [2024-10-13 10:04:07,139 INFO L125 PetriNetUnfolderBase]: For 135/158 co-relation queries the response was YES. [2024-10-13 10:04:07,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1990 conditions, 1358 events. 162/1358 cut-off events. For 135/158 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 8998 event pairs, 60 based on Foata normal form. 0/1268 useless extension candidates. Maximal degree in co-relation 1029. Up to 161 conditions per place. [2024-10-13 10:04:07,148 INFO L140 encePairwiseOnDemand]: 129/139 looper letters, 32 selfloop transitions, 10 changer transitions 3/162 dead transitions. [2024-10-13 10:04:07,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 162 transitions, 500 flow [2024-10-13 10:04:07,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 10:04:07,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 10:04:07,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 966 transitions. [2024-10-13 10:04:07,151 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8687050359712231 [2024-10-13 10:04:07,151 INFO L175 Difference]: Start difference. First operand has 145 places, 140 transitions, 362 flow. Second operand 8 states and 966 transitions. [2024-10-13 10:04:07,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 162 transitions, 500 flow [2024-10-13 10:04:07,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 162 transitions, 488 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 10:04:07,155 INFO L231 Difference]: Finished difference. Result has 150 places, 142 transitions, 390 flow [2024-10-13 10:04:07,155 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=390, PETRI_PLACES=150, PETRI_TRANSITIONS=142} [2024-10-13 10:04:07,156 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 11 predicate places. [2024-10-13 10:04:07,156 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 142 transitions, 390 flow [2024-10-13 10:04:07,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:07,157 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:07,158 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:07,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-13 10:04:07,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-13 10:04:07,359 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-13 10:04:07,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:07,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1014058976, now seen corresponding path program 1 times [2024-10-13 10:04:07,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:07,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112679826] [2024-10-13 10:04:07,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:07,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:07,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:07,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 10:04:07,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:07,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112679826] [2024-10-13 10:04:07,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112679826] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:07,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:07,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:04:07,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675363700] [2024-10-13 10:04:07,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:07,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:04:07,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:07,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:04:07,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:04:07,770 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 139 [2024-10-13 10:04:07,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 142 transitions, 390 flow. Second operand has 6 states, 6 states have (on average 112.66666666666667) internal successors, (676), 6 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:07,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:07,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 139 [2024-10-13 10:04:07,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:08,023 INFO L124 PetriNetUnfolderBase]: 329/1886 cut-off events. [2024-10-13 10:04:08,023 INFO L125 PetriNetUnfolderBase]: For 151/186 co-relation queries the response was YES. [2024-10-13 10:04:08,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2951 conditions, 1886 events. 329/1886 cut-off events. For 151/186 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 14576 event pairs, 186 based on Foata normal form. 0/1757 useless extension candidates. Maximal degree in co-relation 2205. Up to 364 conditions per place. [2024-10-13 10:04:08,037 INFO L140 encePairwiseOnDemand]: 133/139 looper letters, 36 selfloop transitions, 5 changer transitions 1/157 dead transitions. [2024-10-13 10:04:08,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 157 transitions, 502 flow [2024-10-13 10:04:08,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:04:08,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:04:08,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 702 transitions. [2024-10-13 10:04:08,039 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.841726618705036 [2024-10-13 10:04:08,040 INFO L175 Difference]: Start difference. First operand has 150 places, 142 transitions, 390 flow. Second operand 6 states and 702 transitions. [2024-10-13 10:04:08,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 157 transitions, 502 flow [2024-10-13 10:04:08,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 157 transitions, 496 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 10:04:08,044 INFO L231 Difference]: Finished difference. Result has 151 places, 140 transitions, 387 flow [2024-10-13 10:04:08,045 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=387, PETRI_PLACES=151, PETRI_TRANSITIONS=140} [2024-10-13 10:04:08,045 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 12 predicate places. [2024-10-13 10:04:08,046 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 140 transitions, 387 flow [2024-10-13 10:04:08,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.66666666666667) internal successors, (676), 6 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:08,046 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:08,047 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-13 10:04:08,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-13 10:04:08,047 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-13 10:04:08,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:08,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1969955840, now seen corresponding path program 1 times [2024-10-13 10:04:08,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:08,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557505606] [2024-10-13 10:04:08,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:08,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:08,094 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-13 10:04:08,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:08,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557505606] [2024-10-13 10:04:08,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557505606] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:08,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:08,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:04:08,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924302772] [2024-10-13 10:04:08,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:08,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:04:08,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:08,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:04:08,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:04:08,110 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 139 [2024-10-13 10:04:08,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 140 transitions, 387 flow. Second operand has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:08,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:08,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 139 [2024-10-13 10:04:08,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:08,226 INFO L124 PetriNetUnfolderBase]: 56/879 cut-off events. [2024-10-13 10:04:08,227 INFO L125 PetriNetUnfolderBase]: For 247/475 co-relation queries the response was YES. [2024-10-13 10:04:08,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1370 conditions, 879 events. 56/879 cut-off events. For 247/475 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5330 event pairs, 30 based on Foata normal form. 2/855 useless extension candidates. Maximal degree in co-relation 1192. Up to 119 conditions per place. [2024-10-13 10:04:08,233 INFO L140 encePairwiseOnDemand]: 133/139 looper letters, 19 selfloop transitions, 7 changer transitions 1/147 dead transitions. [2024-10-13 10:04:08,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 147 transitions, 464 flow [2024-10-13 10:04:08,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:04:08,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:04:08,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2024-10-13 10:04:08,235 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9256594724220624 [2024-10-13 10:04:08,235 INFO L175 Difference]: Start difference. First operand has 151 places, 140 transitions, 387 flow. Second operand 3 states and 386 transitions. [2024-10-13 10:04:08,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 147 transitions, 464 flow [2024-10-13 10:04:08,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 147 transitions, 454 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 10:04:08,239 INFO L231 Difference]: Finished difference. Result has 150 places, 143 transitions, 427 flow [2024-10-13 10:04:08,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=427, PETRI_PLACES=150, PETRI_TRANSITIONS=143} [2024-10-13 10:04:08,239 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 11 predicate places. [2024-10-13 10:04:08,240 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 143 transitions, 427 flow [2024-10-13 10:04:08,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:08,240 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:08,240 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:08,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-13 10:04:08,241 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-13 10:04:08,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:08,241 INFO L85 PathProgramCache]: Analyzing trace with hash -2139877206, now seen corresponding path program 1 times [2024-10-13 10:04:08,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:08,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300767716] [2024-10-13 10:04:08,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:08,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:08,343 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-13 10:04:08,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:08,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300767716] [2024-10-13 10:04:08,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300767716] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:08,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:08,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 10:04:08,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961860960] [2024-10-13 10:04:08,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:08,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:04:08,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:08,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:04:08,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:04:08,354 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 139 [2024-10-13 10:04:08,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 143 transitions, 427 flow. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:08,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:08,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 139 [2024-10-13 10:04:08,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:08,425 INFO L124 PetriNetUnfolderBase]: 12/537 cut-off events. [2024-10-13 10:04:08,426 INFO L125 PetriNetUnfolderBase]: For 125/145 co-relation queries the response was YES. [2024-10-13 10:04:08,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 774 conditions, 537 events. 12/537 cut-off events. For 125/145 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2275 event pairs, 2 based on Foata normal form. 4/534 useless extension candidates. Maximal degree in co-relation 580. Up to 26 conditions per place. [2024-10-13 10:04:08,428 INFO L140 encePairwiseOnDemand]: 135/139 looper letters, 8 selfloop transitions, 4 changer transitions 4/144 dead transitions. [2024-10-13 10:04:08,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 144 transitions, 448 flow [2024-10-13 10:04:08,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:04:08,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:04:08,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2024-10-13 10:04:08,430 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.947242206235012 [2024-10-13 10:04:08,430 INFO L175 Difference]: Start difference. First operand has 150 places, 143 transitions, 427 flow. Second operand 3 states and 395 transitions. [2024-10-13 10:04:08,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 144 transitions, 448 flow [2024-10-13 10:04:08,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 144 transitions, 436 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-13 10:04:08,433 INFO L231 Difference]: Finished difference. Result has 150 places, 137 transitions, 387 flow [2024-10-13 10:04:08,433 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=387, PETRI_PLACES=150, PETRI_TRANSITIONS=137} [2024-10-13 10:04:08,434 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 11 predicate places. [2024-10-13 10:04:08,434 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 137 transitions, 387 flow [2024-10-13 10:04:08,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:08,434 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:08,435 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-13 10:04:08,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-13 10:04:08,435 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-10-13 10:04:08,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:08,435 INFO L85 PathProgramCache]: Analyzing trace with hash -781949816, now seen corresponding path program 1 times [2024-10-13 10:04:08,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:08,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020067267] [2024-10-13 10:04:08,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:08,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 10:04:08,481 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 10:04:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 10:04:08,527 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 10:04:08,527 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 10:04:08,527 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-10-13 10:04:08,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2024-10-13 10:04:08,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2024-10-13 10:04:08,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2024-10-13 10:04:08,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2024-10-13 10:04:08,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2024-10-13 10:04:08,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2024-10-13 10:04:08,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2024-10-13 10:04:08,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2024-10-13 10:04:08,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2024-10-13 10:04:08,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-13 10:04:08,529 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:08,532 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 10:04:08,532 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-13 10:04:08,553 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-13 10:04:08,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 157 transitions, 341 flow [2024-10-13 10:04:08,622 INFO L124 PetriNetUnfolderBase]: 21/527 cut-off events. [2024-10-13 10:04:08,623 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-13 10:04:08,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 527 events. 21/527 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1319 event pairs, 1 based on Foata normal form. 0/460 useless extension candidates. Maximal degree in co-relation 316. Up to 16 conditions per place. [2024-10-13 10:04:08,624 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 157 transitions, 341 flow [2024-10-13 10:04:08,631 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 158 places, 157 transitions, 341 flow [2024-10-13 10:04:08,632 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 10:04:08,633 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;@1244db76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 10:04:08,634 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-10-13 10:04:08,638 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 10:04:08,639 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-10-13 10:04:08,639 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 10:04:08,639 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:08,639 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:08,639 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-13 10:04:08,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:08,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1192952569, now seen corresponding path program 1 times [2024-10-13 10:04:08,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:08,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970484591] [2024-10-13 10:04:08,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:08,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:08,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:08,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:08,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970484591] [2024-10-13 10:04:08,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970484591] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:08,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:08,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:04:08,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764318892] [2024-10-13 10:04:08,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:08,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:04:08,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:08,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:04:08,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:04:08,676 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 157 [2024-10-13 10:04:08,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 157 transitions, 341 flow. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:08,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:08,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 157 [2024-10-13 10:04:08,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:09,257 INFO L124 PetriNetUnfolderBase]: 1071/4747 cut-off events. [2024-10-13 10:04:09,258 INFO L125 PetriNetUnfolderBase]: For 407/794 co-relation queries the response was YES. [2024-10-13 10:04:09,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6662 conditions, 4747 events. 1071/4747 cut-off events. For 407/794 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 42113 event pairs, 542 based on Foata normal form. 171/4389 useless extension candidates. Maximal degree in co-relation 5220. Up to 1110 conditions per place. [2024-10-13 10:04:09,287 INFO L140 encePairwiseOnDemand]: 148/157 looper letters, 23 selfloop transitions, 5 changer transitions 1/164 dead transitions. [2024-10-13 10:04:09,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 164 transitions, 411 flow [2024-10-13 10:04:09,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:04:09,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:04:09,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 440 transitions. [2024-10-13 10:04:09,289 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9341825902335457 [2024-10-13 10:04:09,289 INFO L175 Difference]: Start difference. First operand has 158 places, 157 transitions, 341 flow. Second operand 3 states and 440 transitions. [2024-10-13 10:04:09,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 164 transitions, 411 flow [2024-10-13 10:04:09,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 164 transitions, 411 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 10:04:09,294 INFO L231 Difference]: Finished difference. Result has 162 places, 157 transitions, 371 flow [2024-10-13 10:04:09,294 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=371, PETRI_PLACES=162, PETRI_TRANSITIONS=157} [2024-10-13 10:04:09,295 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 4 predicate places. [2024-10-13 10:04:09,295 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 157 transitions, 371 flow [2024-10-13 10:04:09,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:09,295 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:09,296 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:09,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-13 10:04:09,296 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-13 10:04:09,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:09,296 INFO L85 PathProgramCache]: Analyzing trace with hash -622230047, now seen corresponding path program 1 times [2024-10-13 10:04:09,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:09,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388075091] [2024-10-13 10:04:09,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:09,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:09,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:09,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:09,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388075091] [2024-10-13 10:04:09,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388075091] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:09,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:09,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:04:09,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904471760] [2024-10-13 10:04:09,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:09,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 10:04:09,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:09,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 10:04:09,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 10:04:09,422 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 157 [2024-10-13 10:04:09,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 157 transitions, 371 flow. Second operand has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:09,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:09,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 157 [2024-10-13 10:04:09,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:10,399 INFO L124 PetriNetUnfolderBase]: 1404/6861 cut-off events. [2024-10-13 10:04:10,399 INFO L125 PetriNetUnfolderBase]: For 443/458 co-relation queries the response was YES. [2024-10-13 10:04:10,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9759 conditions, 6861 events. 1404/6861 cut-off events. For 443/458 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 66613 event pairs, 1086 based on Foata normal form. 1/6146 useless extension candidates. Maximal degree in co-relation 6125. Up to 1847 conditions per place. [2024-10-13 10:04:10,458 INFO L140 encePairwiseOnDemand]: 149/157 looper letters, 24 selfloop transitions, 2 changer transitions 5/165 dead transitions. [2024-10-13 10:04:10,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 165 transitions, 449 flow [2024-10-13 10:04:10,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:04:10,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:04:10,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 818 transitions. [2024-10-13 10:04:10,461 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8683651804670913 [2024-10-13 10:04:10,461 INFO L175 Difference]: Start difference. First operand has 162 places, 157 transitions, 371 flow. Second operand 6 states and 818 transitions. [2024-10-13 10:04:10,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 165 transitions, 449 flow [2024-10-13 10:04:10,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 165 transitions, 439 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 10:04:10,471 INFO L231 Difference]: Finished difference. Result has 168 places, 158 transitions, 383 flow [2024-10-13 10:04:10,471 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=383, PETRI_PLACES=168, PETRI_TRANSITIONS=158} [2024-10-13 10:04:10,472 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 10 predicate places. [2024-10-13 10:04:10,472 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 158 transitions, 383 flow [2024-10-13 10:04:10,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:10,472 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:10,473 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:10,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-13 10:04:10,473 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-13 10:04:10,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:10,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1897426620, now seen corresponding path program 1 times [2024-10-13 10:04:10,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:10,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136461862] [2024-10-13 10:04:10,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:10,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:10,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:10,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:10,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136461862] [2024-10-13 10:04:10,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136461862] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:10,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:10,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:04:10,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737403683] [2024-10-13 10:04:10,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:10,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:04:10,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:10,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:04:10,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:04:10,905 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 157 [2024-10-13 10:04:10,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 158 transitions, 383 flow. Second operand has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:10,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:10,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 157 [2024-10-13 10:04:10,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:12,536 INFO L124 PetriNetUnfolderBase]: 3152/13178 cut-off events. [2024-10-13 10:04:12,536 INFO L125 PetriNetUnfolderBase]: For 507/508 co-relation queries the response was YES. [2024-10-13 10:04:12,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19322 conditions, 13178 events. 3152/13178 cut-off events. For 507/508 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 142874 event pairs, 2465 based on Foata normal form. 0/11518 useless extension candidates. Maximal degree in co-relation 19209. Up to 3699 conditions per place. [2024-10-13 10:04:12,637 INFO L140 encePairwiseOnDemand]: 151/157 looper letters, 61 selfloop transitions, 5 changer transitions 0/181 dead transitions. [2024-10-13 10:04:12,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 181 transitions, 561 flow [2024-10-13 10:04:12,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:04:12,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:04:12,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 738 transitions. [2024-10-13 10:04:12,640 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7834394904458599 [2024-10-13 10:04:12,640 INFO L175 Difference]: Start difference. First operand has 168 places, 158 transitions, 383 flow. Second operand 6 states and 738 transitions. [2024-10-13 10:04:12,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 181 transitions, 561 flow [2024-10-13 10:04:12,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 181 transitions, 549 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-13 10:04:12,648 INFO L231 Difference]: Finished difference. Result has 165 places, 157 transitions, 379 flow [2024-10-13 10:04:12,648 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=379, PETRI_PLACES=165, PETRI_TRANSITIONS=157} [2024-10-13 10:04:12,649 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 7 predicate places. [2024-10-13 10:04:12,649 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 157 transitions, 379 flow [2024-10-13 10:04:12,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:12,650 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:12,650 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:12,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-13 10:04:12,650 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-13 10:04:12,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:12,651 INFO L85 PathProgramCache]: Analyzing trace with hash 555839182, now seen corresponding path program 1 times [2024-10-13 10:04:12,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:12,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322720019] [2024-10-13 10:04:12,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:12,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:12,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:12,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:12,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:12,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322720019] [2024-10-13 10:04:12,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322720019] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:12,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:12,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:04:12,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53605855] [2024-10-13 10:04:12,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:12,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:04:12,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:12,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:04:12,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:04:13,071 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 157 [2024-10-13 10:04:13,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 157 transitions, 379 flow. Second operand has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:13,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:13,073 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 157 [2024-10-13 10:04:13,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:14,439 INFO L124 PetriNetUnfolderBase]: 3111/12735 cut-off events. [2024-10-13 10:04:14,439 INFO L125 PetriNetUnfolderBase]: For 414/414 co-relation queries the response was YES. [2024-10-13 10:04:14,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18633 conditions, 12735 events. 3111/12735 cut-off events. For 414/414 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 138436 event pairs, 1733 based on Foata normal form. 0/11154 useless extension candidates. Maximal degree in co-relation 5021. Up to 3533 conditions per place. [2024-10-13 10:04:14,521 INFO L140 encePairwiseOnDemand]: 151/157 looper letters, 58 selfloop transitions, 5 changer transitions 0/180 dead transitions. [2024-10-13 10:04:14,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 180 transitions, 551 flow [2024-10-13 10:04:14,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:04:14,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:04:14,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 748 transitions. [2024-10-13 10:04:14,523 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7940552016985138 [2024-10-13 10:04:14,523 INFO L175 Difference]: Start difference. First operand has 165 places, 157 transitions, 379 flow. Second operand 6 states and 748 transitions. [2024-10-13 10:04:14,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 180 transitions, 551 flow [2024-10-13 10:04:14,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 180 transitions, 541 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 10:04:14,528 INFO L231 Difference]: Finished difference. Result has 164 places, 156 transitions, 377 flow [2024-10-13 10:04:14,528 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=377, PETRI_PLACES=164, PETRI_TRANSITIONS=156} [2024-10-13 10:04:14,529 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 6 predicate places. [2024-10-13 10:04:14,529 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 156 transitions, 377 flow [2024-10-13 10:04:14,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:14,529 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:14,530 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:14,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-13 10:04:14,530 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-13 10:04:14,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:14,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1197595298, now seen corresponding path program 1 times [2024-10-13 10:04:14,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:14,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590105200] [2024-10-13 10:04:14,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:14,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:14,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:14,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:14,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590105200] [2024-10-13 10:04:14,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590105200] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:14,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:14,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:04:14,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560866325] [2024-10-13 10:04:14,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:14,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:04:14,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:14,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:04:14,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:04:14,580 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 157 [2024-10-13 10:04:14,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 156 transitions, 377 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:14,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:14,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 157 [2024-10-13 10:04:14,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:15,585 INFO L124 PetriNetUnfolderBase]: 1743/7668 cut-off events. [2024-10-13 10:04:15,585 INFO L125 PetriNetUnfolderBase]: For 1692/3630 co-relation queries the response was YES. [2024-10-13 10:04:15,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11998 conditions, 7668 events. 1743/7668 cut-off events. For 1692/3630 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 78839 event pairs, 967 based on Foata normal form. 9/6715 useless extension candidates. Maximal degree in co-relation 10027. Up to 2242 conditions per place. [2024-10-13 10:04:15,644 INFO L140 encePairwiseOnDemand]: 150/157 looper letters, 29 selfloop transitions, 9 changer transitions 0/171 dead transitions. [2024-10-13 10:04:15,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 171 transitions, 511 flow [2024-10-13 10:04:15,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:04:15,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:04:15,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 436 transitions. [2024-10-13 10:04:15,646 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9256900212314225 [2024-10-13 10:04:15,646 INFO L175 Difference]: Start difference. First operand has 164 places, 156 transitions, 377 flow. Second operand 3 states and 436 transitions. [2024-10-13 10:04:15,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 171 transitions, 511 flow [2024-10-13 10:04:15,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 171 transitions, 501 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 10:04:15,650 INFO L231 Difference]: Finished difference. Result has 163 places, 163 transitions, 443 flow [2024-10-13 10:04:15,650 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=443, PETRI_PLACES=163, PETRI_TRANSITIONS=163} [2024-10-13 10:04:15,651 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 5 predicate places. [2024-10-13 10:04:15,651 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 163 transitions, 443 flow [2024-10-13 10:04:15,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:15,651 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:15,652 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:15,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-13 10:04:15,652 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-13 10:04:15,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:15,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1851728978, now seen corresponding path program 1 times [2024-10-13 10:04:15,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:15,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124693770] [2024-10-13 10:04:15,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:15,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:15,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 10:04:15,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:15,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124693770] [2024-10-13 10:04:15,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124693770] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:15,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:15,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:04:15,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691696642] [2024-10-13 10:04:15,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:15,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:04:15,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:15,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:04:15,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:04:16,279 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 157 [2024-10-13 10:04:16,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 163 transitions, 443 flow. Second operand has 6 states, 6 states have (on average 118.83333333333333) internal successors, (713), 6 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:16,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:16,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 157 [2024-10-13 10:04:16,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:17,817 INFO L124 PetriNetUnfolderBase]: 3779/14522 cut-off events. [2024-10-13 10:04:17,817 INFO L125 PetriNetUnfolderBase]: For 2116/2667 co-relation queries the response was YES. [2024-10-13 10:04:17,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23789 conditions, 14522 events. 3779/14522 cut-off events. For 2116/2667 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 163644 event pairs, 1889 based on Foata normal form. 17/12972 useless extension candidates. Maximal degree in co-relation 18569. Up to 2793 conditions per place. [2024-10-13 10:04:17,976 INFO L140 encePairwiseOnDemand]: 150/157 looper letters, 55 selfloop transitions, 5 changer transitions 0/185 dead transitions. [2024-10-13 10:04:17,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 185 transitions, 607 flow [2024-10-13 10:04:17,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:04:17,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:04:17,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 758 transitions. [2024-10-13 10:04:17,980 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8046709129511678 [2024-10-13 10:04:17,980 INFO L175 Difference]: Start difference. First operand has 163 places, 163 transitions, 443 flow. Second operand 6 states and 758 transitions. [2024-10-13 10:04:17,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 185 transitions, 607 flow [2024-10-13 10:04:18,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 185 transitions, 589 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 10:04:18,004 INFO L231 Difference]: Finished difference. Result has 164 places, 161 transitions, 431 flow [2024-10-13 10:04:18,004 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=431, PETRI_PLACES=164, PETRI_TRANSITIONS=161} [2024-10-13 10:04:18,005 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 6 predicate places. [2024-10-13 10:04:18,005 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 161 transitions, 431 flow [2024-10-13 10:04:18,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.83333333333333) internal successors, (713), 6 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:18,006 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:18,006 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:18,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-13 10:04:18,006 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-13 10:04:18,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:18,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1225381778, now seen corresponding path program 1 times [2024-10-13 10:04:18,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:18,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274363735] [2024-10-13 10:04:18,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:18,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:18,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:18,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:18,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274363735] [2024-10-13 10:04:18,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274363735] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 10:04:18,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150143222] [2024-10-13 10:04:18,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:18,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:04:18,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:04:18,121 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 10:04:18,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 10:04:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:18,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 10:04:18,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:04:18,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:18,335 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 10:04:18,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:18,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150143222] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 10:04:18,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 10:04:18,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-10-13 10:04:18,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853593003] [2024-10-13 10:04:18,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 10:04:18,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 10:04:18,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:18,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 10:04:18,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-13 10:04:18,655 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 157 [2024-10-13 10:04:18,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 161 transitions, 431 flow. Second operand has 9 states, 9 states have (on average 131.22222222222223) internal successors, (1181), 9 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:18,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:18,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 157 [2024-10-13 10:04:18,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:19,758 INFO L124 PetriNetUnfolderBase]: 1469/8109 cut-off events. [2024-10-13 10:04:19,758 INFO L125 PetriNetUnfolderBase]: For 958/1181 co-relation queries the response was YES. [2024-10-13 10:04:19,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12401 conditions, 8109 events. 1469/8109 cut-off events. For 958/1181 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 83254 event pairs, 489 based on Foata normal form. 1/7355 useless extension candidates. Maximal degree in co-relation 6723. Up to 1075 conditions per place. [2024-10-13 10:04:19,800 INFO L140 encePairwiseOnDemand]: 147/157 looper letters, 48 selfloop transitions, 10 changer transitions 0/193 dead transitions. [2024-10-13 10:04:19,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 193 transitions, 622 flow [2024-10-13 10:04:19,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 10:04:19,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 10:04:19,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1091 transitions. [2024-10-13 10:04:19,804 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8686305732484076 [2024-10-13 10:04:19,805 INFO L175 Difference]: Start difference. First operand has 164 places, 161 transitions, 431 flow. Second operand 8 states and 1091 transitions. [2024-10-13 10:04:19,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 193 transitions, 622 flow [2024-10-13 10:04:19,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 193 transitions, 610 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 10:04:19,812 INFO L231 Difference]: Finished difference. Result has 169 places, 164 transitions, 465 flow [2024-10-13 10:04:19,812 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=465, PETRI_PLACES=169, PETRI_TRANSITIONS=164} [2024-10-13 10:04:19,813 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 11 predicate places. [2024-10-13 10:04:19,813 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 164 transitions, 465 flow [2024-10-13 10:04:19,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 131.22222222222223) internal successors, (1181), 9 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:19,814 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:19,815 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:19,833 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 10:04:20,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:04:20,016 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-13 10:04:20,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:20,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1193116621, now seen corresponding path program 1 times [2024-10-13 10:04:20,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:20,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517752308] [2024-10-13 10:04:20,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:20,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:20,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 10:04:20,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:20,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517752308] [2024-10-13 10:04:20,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517752308] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:20,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:20,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:04:20,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600132137] [2024-10-13 10:04:20,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:20,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:04:20,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:20,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:04:20,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:04:20,424 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 157 [2024-10-13 10:04:20,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 164 transitions, 465 flow. Second operand has 6 states, 6 states have (on average 126.66666666666667) internal successors, (760), 6 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:20,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:20,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 157 [2024-10-13 10:04:20,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:21,331 INFO L124 PetriNetUnfolderBase]: 2701/10551 cut-off events. [2024-10-13 10:04:21,331 INFO L125 PetriNetUnfolderBase]: For 1004/1407 co-relation queries the response was YES. [2024-10-13 10:04:21,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17213 conditions, 10551 events. 2701/10551 cut-off events. For 1004/1407 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 112259 event pairs, 1410 based on Foata normal form. 1/9499 useless extension candidates. Maximal degree in co-relation 12696. Up to 2113 conditions per place. [2024-10-13 10:04:21,409 INFO L140 encePairwiseOnDemand]: 151/157 looper letters, 48 selfloop transitions, 5 changer transitions 0/187 dead transitions. [2024-10-13 10:04:21,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 187 transitions, 617 flow [2024-10-13 10:04:21,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:04:21,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:04:21,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 798 transitions. [2024-10-13 10:04:21,411 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8471337579617835 [2024-10-13 10:04:21,411 INFO L175 Difference]: Start difference. First operand has 169 places, 164 transitions, 465 flow. Second operand 6 states and 798 transitions. [2024-10-13 10:04:21,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 187 transitions, 617 flow [2024-10-13 10:04:21,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 187 transitions, 611 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 10:04:21,418 INFO L231 Difference]: Finished difference. Result has 170 places, 163 transitions, 467 flow [2024-10-13 10:04:21,418 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=467, PETRI_PLACES=170, PETRI_TRANSITIONS=163} [2024-10-13 10:04:21,419 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 12 predicate places. [2024-10-13 10:04:21,419 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 163 transitions, 467 flow [2024-10-13 10:04:21,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 126.66666666666667) internal successors, (760), 6 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:21,419 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:21,420 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-13 10:04:21,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-13 10:04:21,420 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-13 10:04:21,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:21,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1869097504, now seen corresponding path program 1 times [2024-10-13 10:04:21,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:21,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123627851] [2024-10-13 10:04:21,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:21,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:21,462 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-13 10:04:21,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:21,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123627851] [2024-10-13 10:04:21,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123627851] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:21,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:21,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:04:21,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980745760] [2024-10-13 10:04:21,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:21,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:04:21,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:21,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:04:21,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:04:21,485 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 157 [2024-10-13 10:04:21,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 163 transitions, 467 flow. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:21,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:21,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 157 [2024-10-13 10:04:21,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:22,447 INFO L124 PetriNetUnfolderBase]: 1086/6184 cut-off events. [2024-10-13 10:04:22,447 INFO L125 PetriNetUnfolderBase]: For 2792/5364 co-relation queries the response was YES. [2024-10-13 10:04:22,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10825 conditions, 6184 events. 1086/6184 cut-off events. For 2792/5364 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 65894 event pairs, 589 based on Foata normal form. 13/5722 useless extension candidates. Maximal degree in co-relation 9709. Up to 1450 conditions per place. [2024-10-13 10:04:22,494 INFO L140 encePairwiseOnDemand]: 150/157 looper letters, 31 selfloop transitions, 13 changer transitions 0/179 dead transitions. [2024-10-13 10:04:22,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 179 transitions, 628 flow [2024-10-13 10:04:22,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:04:22,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:04:22,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 435 transitions. [2024-10-13 10:04:22,495 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9235668789808917 [2024-10-13 10:04:22,495 INFO L175 Difference]: Start difference. First operand has 170 places, 163 transitions, 467 flow. Second operand 3 states and 435 transitions. [2024-10-13 10:04:22,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 179 transitions, 628 flow [2024-10-13 10:04:22,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 179 transitions, 618 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 10:04:22,505 INFO L231 Difference]: Finished difference. Result has 169 places, 172 transitions, 575 flow [2024-10-13 10:04:22,505 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=575, PETRI_PLACES=169, PETRI_TRANSITIONS=172} [2024-10-13 10:04:22,506 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 11 predicate places. [2024-10-13 10:04:22,506 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 172 transitions, 575 flow [2024-10-13 10:04:22,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:22,506 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:22,506 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:22,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-13 10:04:22,507 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-13 10:04:22,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:22,507 INFO L85 PathProgramCache]: Analyzing trace with hash 902457162, now seen corresponding path program 1 times [2024-10-13 10:04:22,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:22,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267050769] [2024-10-13 10:04:22,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:22,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:22,630 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-13 10:04:22,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:22,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267050769] [2024-10-13 10:04:22,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267050769] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:22,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:22,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 10:04:22,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801437355] [2024-10-13 10:04:22,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:22,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:04:22,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:22,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:04:22,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:04:22,642 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 157 [2024-10-13 10:04:22,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 172 transitions, 575 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:22,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:22,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 157 [2024-10-13 10:04:22,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:22,895 INFO L124 PetriNetUnfolderBase]: 124/2155 cut-off events. [2024-10-13 10:04:22,895 INFO L125 PetriNetUnfolderBase]: For 750/873 co-relation queries the response was YES. [2024-10-13 10:04:22,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3325 conditions, 2155 events. 124/2155 cut-off events. For 750/873 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 17270 event pairs, 20 based on Foata normal form. 26/2104 useless extension candidates. Maximal degree in co-relation 1299. Up to 142 conditions per place. [2024-10-13 10:04:22,904 INFO L140 encePairwiseOnDemand]: 151/157 looper letters, 12 selfloop transitions, 6 changer transitions 0/167 dead transitions. [2024-10-13 10:04:22,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 167 transitions, 548 flow [2024-10-13 10:04:22,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:04:22,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:04:22,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 444 transitions. [2024-10-13 10:04:22,905 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9426751592356688 [2024-10-13 10:04:22,905 INFO L175 Difference]: Start difference. First operand has 169 places, 172 transitions, 575 flow. Second operand 3 states and 444 transitions. [2024-10-13 10:04:22,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 167 transitions, 548 flow [2024-10-13 10:04:22,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 167 transitions, 534 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-10-13 10:04:22,909 INFO L231 Difference]: Finished difference. Result has 169 places, 162 transitions, 479 flow [2024-10-13 10:04:22,910 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=479, PETRI_PLACES=169, PETRI_TRANSITIONS=162} [2024-10-13 10:04:22,910 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 11 predicate places. [2024-10-13 10:04:22,910 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 162 transitions, 479 flow [2024-10-13 10:04:22,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:22,910 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:22,911 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-13 10:04:22,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-13 10:04:22,911 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-13 10:04:22,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:22,911 INFO L85 PathProgramCache]: Analyzing trace with hash 971540065, now seen corresponding path program 1 times [2024-10-13 10:04:22,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:22,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916614068] [2024-10-13 10:04:22,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:22,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:22,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:22,978 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-10-13 10:04:22,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:22,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916614068] [2024-10-13 10:04:22,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916614068] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:22,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:22,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:04:22,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056856543] [2024-10-13 10:04:22,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:22,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:04:22,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:22,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:04:22,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:04:22,994 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 157 [2024-10-13 10:04:22,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 162 transitions, 479 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:22,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:22,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 157 [2024-10-13 10:04:22,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:23,281 INFO L124 PetriNetUnfolderBase]: 203/2144 cut-off events. [2024-10-13 10:04:23,282 INFO L125 PetriNetUnfolderBase]: For 1440/1937 co-relation queries the response was YES. [2024-10-13 10:04:23,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3837 conditions, 2144 events. 203/2144 cut-off events. For 1440/1937 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 17858 event pairs, 134 based on Foata normal form. 3/1994 useless extension candidates. Maximal degree in co-relation 3135. Up to 435 conditions per place. [2024-10-13 10:04:23,294 INFO L140 encePairwiseOnDemand]: 152/157 looper letters, 25 selfloop transitions, 5 changer transitions 0/167 dead transitions. [2024-10-13 10:04:23,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 167 transitions, 561 flow [2024-10-13 10:04:23,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:04:23,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:04:23,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 428 transitions. [2024-10-13 10:04:23,296 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9087048832271762 [2024-10-13 10:04:23,296 INFO L175 Difference]: Start difference. First operand has 169 places, 162 transitions, 479 flow. Second operand 3 states and 428 transitions. [2024-10-13 10:04:23,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 167 transitions, 561 flow [2024-10-13 10:04:23,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 167 transitions, 555 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 10:04:23,301 INFO L231 Difference]: Finished difference. Result has 172 places, 165 transitions, 513 flow [2024-10-13 10:04:23,302 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=513, PETRI_PLACES=172, PETRI_TRANSITIONS=165} [2024-10-13 10:04:23,304 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 14 predicate places. [2024-10-13 10:04:23,304 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 165 transitions, 513 flow [2024-10-13 10:04:23,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:23,305 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:23,305 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2024-10-13 10:04:23,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-13 10:04:23,305 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-10-13 10:04:23,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:23,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1809063735, now seen corresponding path program 1 times [2024-10-13 10:04:23,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:23,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21157050] [2024-10-13 10:04:23,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:23,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 10:04:23,361 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 10:04:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 10:04:23,422 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 10:04:23,422 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 10:04:23,423 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-10-13 10:04:23,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2024-10-13 10:04:23,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2024-10-13 10:04:23,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2024-10-13 10:04:23,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2024-10-13 10:04:23,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2024-10-13 10:04:23,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2024-10-13 10:04:23,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2024-10-13 10:04:23,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2024-10-13 10:04:23,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2024-10-13 10:04:23,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2024-10-13 10:04:23,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-13 10:04:23,424 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:23,425 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 10:04:23,425 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-10-13 10:04:23,444 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-13 10:04:23,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 177 places, 175 transitions, 390 flow [2024-10-13 10:04:23,545 INFO L124 PetriNetUnfolderBase]: 43/918 cut-off events. [2024-10-13 10:04:23,545 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-10-13 10:04:23,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 969 conditions, 918 events. 43/918 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 3073 event pairs, 6 based on Foata normal form. 0/798 useless extension candidates. Maximal degree in co-relation 547. Up to 32 conditions per place. [2024-10-13 10:04:23,550 INFO L82 GeneralOperation]: Start removeDead. Operand has 177 places, 175 transitions, 390 flow [2024-10-13 10:04:23,556 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 177 places, 175 transitions, 390 flow [2024-10-13 10:04:23,557 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 10:04:23,557 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;@1244db76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 10:04:23,557 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-10-13 10:04:23,560 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 10:04:23,560 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-10-13 10:04:23,560 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 10:04:23,560 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:23,560 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:23,560 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-10-13 10:04:23,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:23,561 INFO L85 PathProgramCache]: Analyzing trace with hash -433409817, now seen corresponding path program 1 times [2024-10-13 10:04:23,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:23,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559268978] [2024-10-13 10:04:23,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:23,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:23,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:23,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:23,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559268978] [2024-10-13 10:04:23,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559268978] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:23,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:23,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:04:23,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236576625] [2024-10-13 10:04:23,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:23,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:04:23,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:23,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:04:23,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:04:23,607 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 175 [2024-10-13 10:04:23,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 175 transitions, 390 flow. Second operand has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:23,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:23,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 175 [2024-10-13 10:04:23,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:27,122 INFO L124 PetriNetUnfolderBase]: 7859/26538 cut-off events. [2024-10-13 10:04:27,122 INFO L125 PetriNetUnfolderBase]: For 2911/5636 co-relation queries the response was YES. [2024-10-13 10:04:27,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38888 conditions, 26538 events. 7859/26538 cut-off events. For 2911/5636 co-relation queries the response was YES. Maximal size of possible extension queue 762. Compared 305358 event pairs, 4292 based on Foata normal form. 798/24607 useless extension candidates. Maximal degree in co-relation 30851. Up to 7653 conditions per place. [2024-10-13 10:04:27,284 INFO L140 encePairwiseOnDemand]: 165/175 looper letters, 30 selfloop transitions, 6 changer transitions 1/185 dead transitions. [2024-10-13 10:04:27,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 185 transitions, 482 flow [2024-10-13 10:04:27,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:04:27,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:04:27,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 487 transitions. [2024-10-13 10:04:27,286 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9276190476190476 [2024-10-13 10:04:27,286 INFO L175 Difference]: Start difference. First operand has 177 places, 175 transitions, 390 flow. Second operand 3 states and 487 transitions. [2024-10-13 10:04:27,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 185 transitions, 482 flow [2024-10-13 10:04:27,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 185 transitions, 482 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 10:04:27,290 INFO L231 Difference]: Finished difference. Result has 181 places, 176 transitions, 428 flow [2024-10-13 10:04:27,290 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=428, PETRI_PLACES=181, PETRI_TRANSITIONS=176} [2024-10-13 10:04:27,290 INFO L277 CegarLoopForPetriNet]: 177 programPoint places, 4 predicate places. [2024-10-13 10:04:27,290 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 176 transitions, 428 flow [2024-10-13 10:04:27,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:27,291 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:27,291 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:27,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-13 10:04:27,291 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-10-13 10:04:27,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:27,291 INFO L85 PathProgramCache]: Analyzing trace with hash -846080095, now seen corresponding path program 1 times [2024-10-13 10:04:27,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:27,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764146220] [2024-10-13 10:04:27,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:27,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:27,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:27,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:27,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764146220] [2024-10-13 10:04:27,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764146220] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:27,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:27,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:04:27,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24283402] [2024-10-13 10:04:27,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:27,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 10:04:27,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:27,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 10:04:27,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 10:04:27,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 175 [2024-10-13 10:04:27,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 176 transitions, 428 flow. Second operand has 5 states, 5 states have (on average 146.4) internal successors, (732), 5 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:27,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:27,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 175 [2024-10-13 10:04:27,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:31,928 INFO L124 PetriNetUnfolderBase]: 9343/35816 cut-off events. [2024-10-13 10:04:31,928 INFO L125 PetriNetUnfolderBase]: For 2632/2756 co-relation queries the response was YES. [2024-10-13 10:04:32,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52733 conditions, 35816 events. 9343/35816 cut-off events. For 2632/2756 co-relation queries the response was YES. Maximal size of possible extension queue 864. Compared 443703 event pairs, 7523 based on Foata normal form. 1/31567 useless extension candidates. Maximal degree in co-relation 32440. Up to 10778 conditions per place. [2024-10-13 10:04:32,202 INFO L140 encePairwiseOnDemand]: 167/175 looper letters, 28 selfloop transitions, 2 changer transitions 5/184 dead transitions. [2024-10-13 10:04:32,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 184 transitions, 514 flow [2024-10-13 10:04:32,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:04:32,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:04:32,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 906 transitions. [2024-10-13 10:04:32,205 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8628571428571429 [2024-10-13 10:04:32,205 INFO L175 Difference]: Start difference. First operand has 181 places, 176 transitions, 428 flow. Second operand 6 states and 906 transitions. [2024-10-13 10:04:32,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 184 transitions, 514 flow [2024-10-13 10:04:32,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 184 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 10:04:32,266 INFO L231 Difference]: Finished difference. Result has 187 places, 177 transitions, 438 flow [2024-10-13 10:04:32,267 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=438, PETRI_PLACES=187, PETRI_TRANSITIONS=177} [2024-10-13 10:04:32,267 INFO L277 CegarLoopForPetriNet]: 177 programPoint places, 10 predicate places. [2024-10-13 10:04:32,268 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 177 transitions, 438 flow [2024-10-13 10:04:32,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 146.4) internal successors, (732), 5 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:32,268 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:32,268 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:32,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-13 10:04:32,269 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-10-13 10:04:32,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:32,270 INFO L85 PathProgramCache]: Analyzing trace with hash -746957397, now seen corresponding path program 1 times [2024-10-13 10:04:32,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:32,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365325942] [2024-10-13 10:04:32,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:32,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:32,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:32,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:32,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365325942] [2024-10-13 10:04:32,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365325942] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:32,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:32,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:04:32,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651875059] [2024-10-13 10:04:32,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:32,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:04:32,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:32,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:04:32,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:04:32,638 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 175 [2024-10-13 10:04:32,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 177 transitions, 438 flow. Second operand has 6 states, 6 states have (on average 127.5) internal successors, (765), 6 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:32,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:32,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 175 [2024-10-13 10:04:32,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:41,851 INFO L124 PetriNetUnfolderBase]: 20475/70474 cut-off events. [2024-10-13 10:04:41,852 INFO L125 PetriNetUnfolderBase]: For 2766/2782 co-relation queries the response was YES. [2024-10-13 10:04:42,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105344 conditions, 70474 events. 20475/70474 cut-off events. For 2766/2782 co-relation queries the response was YES. Maximal size of possible extension queue 1690. Compared 938407 event pairs, 16494 based on Foata normal form. 0/60691 useless extension candidates. Maximal degree in co-relation 105230. Up to 21481 conditions per place. [2024-10-13 10:04:42,567 INFO L140 encePairwiseOnDemand]: 169/175 looper letters, 73 selfloop transitions, 5 changer transitions 0/208 dead transitions. [2024-10-13 10:04:42,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 208 transitions, 656 flow [2024-10-13 10:04:42,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:04:42,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:04:42,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 834 transitions. [2024-10-13 10:04:42,568 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7942857142857143 [2024-10-13 10:04:42,568 INFO L175 Difference]: Start difference. First operand has 187 places, 177 transitions, 438 flow. Second operand 6 states and 834 transitions. [2024-10-13 10:04:42,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 208 transitions, 656 flow [2024-10-13 10:04:42,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 208 transitions, 644 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-13 10:04:42,612 INFO L231 Difference]: Finished difference. Result has 184 places, 176 transitions, 434 flow [2024-10-13 10:04:42,612 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=434, PETRI_PLACES=184, PETRI_TRANSITIONS=176} [2024-10-13 10:04:42,612 INFO L277 CegarLoopForPetriNet]: 177 programPoint places, 7 predicate places. [2024-10-13 10:04:42,612 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 176 transitions, 434 flow [2024-10-13 10:04:42,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 127.5) internal successors, (765), 6 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:42,613 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:42,613 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:42,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-13 10:04:42,614 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-10-13 10:04:42,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:42,614 INFO L85 PathProgramCache]: Analyzing trace with hash -230722467, now seen corresponding path program 1 times [2024-10-13 10:04:42,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:42,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077048521] [2024-10-13 10:04:42,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:42,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:42,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:42,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:42,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:42,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077048521] [2024-10-13 10:04:42,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077048521] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:42,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:42,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:04:42,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521174371] [2024-10-13 10:04:42,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:42,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:04:42,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:42,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:04:42,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:04:42,896 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 175 [2024-10-13 10:04:42,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 176 transitions, 434 flow. Second operand has 6 states, 6 states have (on average 130.0) internal successors, (780), 6 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:42,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:42,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 175 [2024-10-13 10:04:42,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:50,254 INFO L124 PetriNetUnfolderBase]: 21685/51607 cut-off events. [2024-10-13 10:04:50,255 INFO L125 PetriNetUnfolderBase]: For 2346/2346 co-relation queries the response was YES. [2024-10-13 10:04:50,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86514 conditions, 51607 events. 21685/51607 cut-off events. For 2346/2346 co-relation queries the response was YES. Maximal size of possible extension queue 1961. Compared 587153 event pairs, 3534 based on Foata normal form. 0/45288 useless extension candidates. Maximal degree in co-relation 15703. Up to 25048 conditions per place. [2024-10-13 10:04:50,694 INFO L140 encePairwiseOnDemand]: 169/175 looper letters, 70 selfloop transitions, 5 changer transitions 0/207 dead transitions. [2024-10-13 10:04:50,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 207 transitions, 646 flow [2024-10-13 10:04:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:04:50,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:04:50,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 844 transitions. [2024-10-13 10:04:50,696 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8038095238095239 [2024-10-13 10:04:50,696 INFO L175 Difference]: Start difference. First operand has 184 places, 176 transitions, 434 flow. Second operand 6 states and 844 transitions. [2024-10-13 10:04:50,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 207 transitions, 646 flow [2024-10-13 10:04:50,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 207 transitions, 636 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 10:04:50,705 INFO L231 Difference]: Finished difference. Result has 183 places, 175 transitions, 432 flow [2024-10-13 10:04:50,705 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=432, PETRI_PLACES=183, PETRI_TRANSITIONS=175} [2024-10-13 10:04:50,706 INFO L277 CegarLoopForPetriNet]: 177 programPoint places, 6 predicate places. [2024-10-13 10:04:50,706 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 175 transitions, 432 flow [2024-10-13 10:04:50,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.0) internal successors, (780), 6 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:50,707 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:50,707 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:50,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-13 10:04:50,707 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-10-13 10:04:50,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:50,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1069633713, now seen corresponding path program 1 times [2024-10-13 10:04:50,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:50,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802916622] [2024-10-13 10:04:50,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:50,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:50,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:50,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:50,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802916622] [2024-10-13 10:04:50,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802916622] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:50,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:50,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:04:50,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742947930] [2024-10-13 10:04:50,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:50,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:04:50,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:50,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:04:50,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:04:50,768 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 175 [2024-10-13 10:04:50,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 175 transitions, 432 flow. Second operand has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:50,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:50,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 175 [2024-10-13 10:04:50,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:56,669 INFO L124 PetriNetUnfolderBase]: 13641/46120 cut-off events. [2024-10-13 10:04:56,670 INFO L125 PetriNetUnfolderBase]: For 11665/23311 co-relation queries the response was YES. [2024-10-13 10:04:56,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75500 conditions, 46120 events. 13641/46120 cut-off events. For 11665/23311 co-relation queries the response was YES. Maximal size of possible extension queue 1527. Compared 590368 event pairs, 7860 based on Foata normal form. 33/40368 useless extension candidates. Maximal degree in co-relation 62457. Up to 15890 conditions per place. [2024-10-13 10:04:57,028 INFO L140 encePairwiseOnDemand]: 167/175 looper letters, 39 selfloop transitions, 11 changer transitions 0/196 dead transitions. [2024-10-13 10:04:57,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 196 transitions, 618 flow [2024-10-13 10:04:57,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:04:57,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:04:57,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 485 transitions. [2024-10-13 10:04:57,029 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9238095238095239 [2024-10-13 10:04:57,029 INFO L175 Difference]: Start difference. First operand has 183 places, 175 transitions, 432 flow. Second operand 3 states and 485 transitions. [2024-10-13 10:04:57,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 196 transitions, 618 flow [2024-10-13 10:04:57,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 196 transitions, 608 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 10:04:57,038 INFO L231 Difference]: Finished difference. Result has 182 places, 184 transitions, 518 flow [2024-10-13 10:04:57,038 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=518, PETRI_PLACES=182, PETRI_TRANSITIONS=184} [2024-10-13 10:04:57,038 INFO L277 CegarLoopForPetriNet]: 177 programPoint places, 5 predicate places. [2024-10-13 10:04:57,039 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 184 transitions, 518 flow [2024-10-13 10:04:57,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:57,039 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:57,039 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:57,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-13 10:04:57,040 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-10-13 10:04:57,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:57,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1301449457, now seen corresponding path program 1 times [2024-10-13 10:04:57,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:57,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017138028] [2024-10-13 10:04:57,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:57,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:57,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:57,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 10:04:57,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:57,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017138028] [2024-10-13 10:04:57,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017138028] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:57,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:57,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:04:57,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127561404] [2024-10-13 10:04:57,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:57,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:04:57,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:57,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:04:57,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:04:57,453 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 175 [2024-10-13 10:04:57,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 184 transitions, 518 flow. Second operand has 6 states, 6 states have (on average 132.83333333333334) internal successors, (797), 6 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:57,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:57,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 175 [2024-10-13 10:04:57,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand