./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/queue_longer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 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/queue_longer.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 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 16:42:50,845 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 16:42:50,905 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 16:42:50,910 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 16:42:50,913 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 16:42:50,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 16:42:50,938 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 16:42:50,939 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 16:42:50,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 16:42:50,940 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 16:42:50,940 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 16:42:50,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 16:42:50,941 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 16:42:50,941 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 16:42:50,943 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 16:42:50,943 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 16:42:50,943 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 16:42:50,944 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 16:42:50,944 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 16:42:50,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 16:42:50,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 16:42:50,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 16:42:50,948 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 16:42:50,948 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 16:42:50,948 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 16:42:50,948 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 16:42:50,948 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 16:42:50,948 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 16:42:50,949 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 16:42:50,949 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 16:42:50,949 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 16:42:50,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 16:42:50,949 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 16:42:50,949 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 16:42:50,950 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 16:42:50,950 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 16:42:50,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 16:42:50,950 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 16:42:50,950 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 16:42:50,950 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 16:42:50,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 16:42:50,952 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 [2024-10-14 16:42:51,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 16:42:51,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 16:42:51,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 16:42:51,161 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 16:42:51,162 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 16:42:51,163 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longer.i [2024-10-14 16:42:52,478 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 16:42:52,767 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 16:42:52,769 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longer.i [2024-10-14 16:42:52,785 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ad18bb2/79092d6c87b340dd85a68c8f33c8d4d1/FLAG25c5e2f4b [2024-10-14 16:42:52,799 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ad18bb2/79092d6c87b340dd85a68c8f33c8d4d1 [2024-10-14 16:42:52,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 16:42:52,802 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 16:42:52,803 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 16:42:52,803 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 16:42:52,807 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 16:42:52,808 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:42:52" (1/1) ... [2024-10-14 16:42:52,810 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20c8bfaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:52, skipping insertion in model container [2024-10-14 16:42:52,810 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:42:52" (1/1) ... [2024-10-14 16:42:52,842 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 16:42:53,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 16:42:53,230 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 16:42:53,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 16:42:53,349 INFO L204 MainTranslator]: Completed translation [2024-10-14 16:42:53,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:53 WrapperNode [2024-10-14 16:42:53,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 16:42:53,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 16:42:53,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 16:42:53,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 16:42:53,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:53" (1/1) ... [2024-10-14 16:42:53,382 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:53" (1/1) ... [2024-10-14 16:42:53,410 INFO L138 Inliner]: procedures = 274, calls = 56, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 474 [2024-10-14 16:42:53,410 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 16:42:53,411 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 16:42:53,411 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 16:42:53,411 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 16:42:53,424 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:53" (1/1) ... [2024-10-14 16:42:53,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:53" (1/1) ... [2024-10-14 16:42:53,441 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:53" (1/1) ... [2024-10-14 16:42:53,441 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:53" (1/1) ... [2024-10-14 16:42:53,476 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:53" (1/1) ... [2024-10-14 16:42:53,483 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:53" (1/1) ... [2024-10-14 16:42:53,488 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:53" (1/1) ... [2024-10-14 16:42:53,494 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:53" (1/1) ... [2024-10-14 16:42:53,499 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 16:42:53,500 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 16:42:53,500 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 16:42:53,500 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 16:42:53,501 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:53" (1/1) ... [2024-10-14 16:42:53,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 16:42:53,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 16:42:53,527 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) [2024-10-14 16:42:53,530 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 [2024-10-14 16:42:53,567 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-10-14 16:42:53,567 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-10-14 16:42:53,567 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-10-14 16:42:53,568 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-10-14 16:42:53,568 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-14 16:42:53,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 16:42:53,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 16:42:53,568 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-14 16:42:53,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 16:42:53,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 16:42:53,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 16:42:53,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 16:42:53,570 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 16:42:53,705 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 16:42:53,707 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 16:42:54,366 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 16:42:54,367 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 16:42:54,415 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 16:42:54,415 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 16:42:54,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:42:54 BoogieIcfgContainer [2024-10-14 16:42:54,416 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 16:42:54,419 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 16:42:54,420 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 16:42:54,422 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 16:42:54,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:42:52" (1/3) ... [2024-10-14 16:42:54,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b7ad55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:42:54, skipping insertion in model container [2024-10-14 16:42:54,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:42:53" (2/3) ... [2024-10-14 16:42:54,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b7ad55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:42:54, skipping insertion in model container [2024-10-14 16:42:54,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:42:54" (3/3) ... [2024-10-14 16:42:54,426 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_longer.i [2024-10-14 16:42:54,439 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 16:42:54,440 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-10-14 16:42:54,440 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 16:42:54,583 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-14 16:42:54,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 534 places, 545 transitions, 1104 flow [2024-10-14 16:42:54,825 INFO L124 PetriNetUnfolderBase]: 18/543 cut-off events. [2024-10-14 16:42:54,825 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-14 16:42:54,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 543 events. 18/543 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 733 event pairs, 0 based on Foata normal form. 0/483 useless extension candidates. Maximal degree in co-relation 423. Up to 2 conditions per place. [2024-10-14 16:42:54,834 INFO L82 GeneralOperation]: Start removeDead. Operand has 534 places, 545 transitions, 1104 flow [2024-10-14 16:42:54,843 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 527 places, 538 transitions, 1085 flow [2024-10-14 16:42:54,850 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 16:42:54,855 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@387e1fba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 16:42:54,855 INFO L334 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2024-10-14 16:42:54,858 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 16:42:54,859 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-10-14 16:42:54,859 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 16:42:54,859 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:42:54,860 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] [2024-10-14 16:42:54,860 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-14 16:42:54,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:42:54,865 INFO L85 PathProgramCache]: Analyzing trace with hash 184386952, now seen corresponding path program 1 times [2024-10-14 16:42:54,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:42:54,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513554677] [2024-10-14 16:42:54,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:42:54,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:42:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:42:55,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:42:55,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:42:55,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513554677] [2024-10-14 16:42:55,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513554677] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:42:55,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:42:55,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:42:55,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571086967] [2024-10-14 16:42:55,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:42:55,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:42:55,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:42:55,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:42:55,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:42:55,149 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 545 [2024-10-14 16:42:55,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 538 transitions, 1085 flow. Second operand has 3 states, 3 states have (on average 514.3333333333334) internal successors, (1543), 3 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:42:55,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:42:55,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 545 [2024-10-14 16:42:55,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:42:55,503 INFO L124 PetriNetUnfolderBase]: 61/1637 cut-off events. [2024-10-14 16:42:55,504 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-14 16:42:55,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1732 conditions, 1637 events. 61/1637 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 7596 event pairs, 27 based on Foata normal form. 38/1498 useless extension candidates. Maximal degree in co-relation 1595. Up to 70 conditions per place. [2024-10-14 16:42:55,515 INFO L140 encePairwiseOnDemand]: 535/545 looper letters, 15 selfloop transitions, 2 changer transitions 0/519 dead transitions. [2024-10-14 16:42:55,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 519 transitions, 1081 flow [2024-10-14 16:42:55,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:42:55,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:42:55,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1564 transitions. [2024-10-14 16:42:55,534 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9565749235474006 [2024-10-14 16:42:55,536 INFO L175 Difference]: Start difference. First operand has 527 places, 538 transitions, 1085 flow. Second operand 3 states and 1564 transitions. [2024-10-14 16:42:55,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 519 transitions, 1081 flow [2024-10-14 16:42:55,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 519 transitions, 1076 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-14 16:42:55,550 INFO L231 Difference]: Finished difference. Result has 515 places, 519 transitions, 1046 flow [2024-10-14 16:42:55,553 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1042, PETRI_DIFFERENCE_MINUEND_PLACES=513, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1046, PETRI_PLACES=515, PETRI_TRANSITIONS=519} [2024-10-14 16:42:55,556 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -12 predicate places. [2024-10-14 16:42:55,556 INFO L471 AbstractCegarLoop]: Abstraction has has 515 places, 519 transitions, 1046 flow [2024-10-14 16:42:55,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 514.3333333333334) internal successors, (1543), 3 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:42:55,558 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:42:55,558 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] [2024-10-14 16:42:55,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 16:42:55,559 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-14 16:42:55,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:42:55,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1794494119, now seen corresponding path program 1 times [2024-10-14 16:42:55,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:42:55,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100875350] [2024-10-14 16:42:55,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:42:55,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:42:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:42:55,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:42:55,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:42:55,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100875350] [2024-10-14 16:42:55,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100875350] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:42:55,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:42:55,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:42:55,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955655283] [2024-10-14 16:42:55,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:42:55,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:42:55,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:42:55,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:42:55,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:42:55,646 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 545 [2024-10-14 16:42:55,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 519 transitions, 1046 flow. Second operand has 3 states, 3 states have (on average 514.3333333333334) internal successors, (1543), 3 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:42:55,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:42:55,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 545 [2024-10-14 16:42:55,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:42:55,870 INFO L124 PetriNetUnfolderBase]: 69/1911 cut-off events. [2024-10-14 16:42:55,870 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-14 16:42:55,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2004 conditions, 1911 events. 69/1911 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 9575 event pairs, 29 based on Foata normal form. 0/1706 useless extension candidates. Maximal degree in co-relation 1968. Up to 74 conditions per place. [2024-10-14 16:42:55,879 INFO L140 encePairwiseOnDemand]: 542/545 looper letters, 15 selfloop transitions, 2 changer transitions 0/518 dead transitions. [2024-10-14 16:42:55,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 518 transitions, 1078 flow [2024-10-14 16:42:55,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:42:55,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:42:55,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1557 transitions. [2024-10-14 16:42:55,882 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9522935779816514 [2024-10-14 16:42:55,882 INFO L175 Difference]: Start difference. First operand has 515 places, 519 transitions, 1046 flow. Second operand 3 states and 1557 transitions. [2024-10-14 16:42:55,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 518 transitions, 1078 flow [2024-10-14 16:42:55,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 518 transitions, 1074 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 16:42:55,888 INFO L231 Difference]: Finished difference. Result has 514 places, 518 transitions, 1044 flow [2024-10-14 16:42:55,889 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1040, PETRI_DIFFERENCE_MINUEND_PLACES=512, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=518, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1044, PETRI_PLACES=514, PETRI_TRANSITIONS=518} [2024-10-14 16:42:55,889 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -13 predicate places. [2024-10-14 16:42:55,890 INFO L471 AbstractCegarLoop]: Abstraction has has 514 places, 518 transitions, 1044 flow [2024-10-14 16:42:55,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 514.3333333333334) internal successors, (1543), 3 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:42:55,890 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:42:55,891 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] [2024-10-14 16:42:55,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 16:42:55,891 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-14 16:42:55,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:42:55,891 INFO L85 PathProgramCache]: Analyzing trace with hash 2067411053, now seen corresponding path program 1 times [2024-10-14 16:42:55,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:42:55,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401444204] [2024-10-14 16:42:55,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:42:55,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:42:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:42:56,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:42:56,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:42:56,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401444204] [2024-10-14 16:42:56,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401444204] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:42:56,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:42:56,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:42:56,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375626439] [2024-10-14 16:42:56,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:42:56,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:42:56,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:42:56,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:42:56,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:42:57,353 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 545 [2024-10-14 16:42:57,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 518 transitions, 1044 flow. Second operand has 6 states, 6 states have (on average 389.3333333333333) internal successors, (2336), 6 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:42:57,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:42:57,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 545 [2024-10-14 16:42:57,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:00,028 INFO L124 PetriNetUnfolderBase]: 3722/15130 cut-off events. [2024-10-14 16:43:00,028 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-14 16:43:00,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22228 conditions, 15130 events. 3722/15130 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 137381 event pairs, 3314 based on Foata normal form. 0/13666 useless extension candidates. Maximal degree in co-relation 22188. Up to 6918 conditions per place. [2024-10-14 16:43:00,102 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 138 selfloop transitions, 5 changer transitions 0/517 dead transitions. [2024-10-14 16:43:00,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 517 transitions, 1328 flow [2024-10-14 16:43:00,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 16:43:00,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 16:43:00,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2472 transitions. [2024-10-14 16:43:00,106 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7559633027522936 [2024-10-14 16:43:00,106 INFO L175 Difference]: Start difference. First operand has 514 places, 518 transitions, 1044 flow. Second operand 6 states and 2472 transitions. [2024-10-14 16:43:00,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 517 transitions, 1328 flow [2024-10-14 16:43:00,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 517 transitions, 1324 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 16:43:00,112 INFO L231 Difference]: Finished difference. Result has 516 places, 517 transitions, 1048 flow [2024-10-14 16:43:00,113 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1038, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=512, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1048, PETRI_PLACES=516, PETRI_TRANSITIONS=517} [2024-10-14 16:43:00,114 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -11 predicate places. [2024-10-14 16:43:00,114 INFO L471 AbstractCegarLoop]: Abstraction has has 516 places, 517 transitions, 1048 flow [2024-10-14 16:43:00,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 389.3333333333333) internal successors, (2336), 6 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:00,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:00,115 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:00,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 16:43:00,116 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-14 16:43:00,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:00,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1539044538, now seen corresponding path program 1 times [2024-10-14 16:43:00,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:00,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381933085] [2024-10-14 16:43:00,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:00,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:00,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:00,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:00,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381933085] [2024-10-14 16:43:00,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381933085] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:00,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:00,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:43:00,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947354953] [2024-10-14 16:43:00,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:00,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:43:00,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:00,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:43:00,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:43:00,896 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 545 [2024-10-14 16:43:00,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 517 transitions, 1048 flow. Second operand has 6 states, 6 states have (on average 389.3333333333333) internal successors, (2336), 6 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:00,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:00,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 545 [2024-10-14 16:43:00,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:03,004 INFO L124 PetriNetUnfolderBase]: 3722/15129 cut-off events. [2024-10-14 16:43:03,007 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-14 16:43:03,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22230 conditions, 15129 events. 3722/15129 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 137592 event pairs, 3314 based on Foata normal form. 0/13666 useless extension candidates. Maximal degree in co-relation 22174. Up to 6918 conditions per place. [2024-10-14 16:43:03,076 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 138 selfloop transitions, 5 changer transitions 0/516 dead transitions. [2024-10-14 16:43:03,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 516 transitions, 1332 flow [2024-10-14 16:43:03,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 16:43:03,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 16:43:03,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2472 transitions. [2024-10-14 16:43:03,080 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7559633027522936 [2024-10-14 16:43:03,080 INFO L175 Difference]: Start difference. First operand has 516 places, 517 transitions, 1048 flow. Second operand 6 states and 2472 transitions. [2024-10-14 16:43:03,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 516 transitions, 1332 flow [2024-10-14 16:43:03,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 516 transitions, 1322 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 16:43:03,087 INFO L231 Difference]: Finished difference. Result has 515 places, 516 transitions, 1046 flow [2024-10-14 16:43:03,088 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1036, PETRI_DIFFERENCE_MINUEND_PLACES=510, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=516, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1046, PETRI_PLACES=515, PETRI_TRANSITIONS=516} [2024-10-14 16:43:03,088 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -12 predicate places. [2024-10-14 16:43:03,089 INFO L471 AbstractCegarLoop]: Abstraction has has 515 places, 516 transitions, 1046 flow [2024-10-14 16:43:03,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 389.3333333333333) internal successors, (2336), 6 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:03,090 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:03,090 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:03,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 16:43:03,091 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-14 16:43:03,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:03,092 INFO L85 PathProgramCache]: Analyzing trace with hash 382549686, now seen corresponding path program 1 times [2024-10-14 16:43:03,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:03,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006790946] [2024-10-14 16:43:03,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:03,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:03,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:03,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:03,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006790946] [2024-10-14 16:43:03,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006790946] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:03,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:03,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:43:03,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704010672] [2024-10-14 16:43:03,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:03,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:43:03,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:03,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:43:03,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:43:04,268 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 545 [2024-10-14 16:43:04,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 516 transitions, 1046 flow. Second operand has 6 states, 6 states have (on average 389.3333333333333) internal successors, (2336), 6 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:04,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:04,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 545 [2024-10-14 16:43:04,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:06,705 INFO L124 PetriNetUnfolderBase]: 3722/15128 cut-off events. [2024-10-14 16:43:06,706 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-14 16:43:06,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22229 conditions, 15128 events. 3722/15128 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 137351 event pairs, 3314 based on Foata normal form. 0/13666 useless extension candidates. Maximal degree in co-relation 22165. Up to 6918 conditions per place. [2024-10-14 16:43:06,759 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 138 selfloop transitions, 5 changer transitions 0/515 dead transitions. [2024-10-14 16:43:06,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 515 transitions, 1330 flow [2024-10-14 16:43:06,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 16:43:06,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 16:43:06,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2472 transitions. [2024-10-14 16:43:06,768 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7559633027522936 [2024-10-14 16:43:06,768 INFO L175 Difference]: Start difference. First operand has 515 places, 516 transitions, 1046 flow. Second operand 6 states and 2472 transitions. [2024-10-14 16:43:06,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 515 transitions, 1330 flow [2024-10-14 16:43:06,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 515 transitions, 1320 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 16:43:06,774 INFO L231 Difference]: Finished difference. Result has 514 places, 515 transitions, 1044 flow [2024-10-14 16:43:06,775 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1034, PETRI_DIFFERENCE_MINUEND_PLACES=509, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=515, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=510, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1044, PETRI_PLACES=514, PETRI_TRANSITIONS=515} [2024-10-14 16:43:06,775 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -13 predicate places. [2024-10-14 16:43:06,776 INFO L471 AbstractCegarLoop]: Abstraction has has 514 places, 515 transitions, 1044 flow [2024-10-14 16:43:06,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 389.3333333333333) internal successors, (2336), 6 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:06,777 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:06,777 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:06,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 16:43:06,778 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-14 16:43:06,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:06,778 INFO L85 PathProgramCache]: Analyzing trace with hash 504962579, now seen corresponding path program 1 times [2024-10-14 16:43:06,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:06,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76002721] [2024-10-14 16:43:06,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:06,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:07,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:07,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:07,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76002721] [2024-10-14 16:43:07,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76002721] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:07,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:07,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:43:07,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639114193] [2024-10-14 16:43:07,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:07,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:43:07,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:07,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:43:07,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:43:08,120 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 545 [2024-10-14 16:43:08,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 515 transitions, 1044 flow. Second operand has 6 states, 6 states have (on average 453.1666666666667) internal successors, (2719), 6 states have internal predecessors, (2719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:08,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:08,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 545 [2024-10-14 16:43:08,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:08,933 INFO L124 PetriNetUnfolderBase]: 858/5626 cut-off events. [2024-10-14 16:43:08,934 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-14 16:43:08,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7230 conditions, 5626 events. 858/5626 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 45934 event pairs, 674 based on Foata normal form. 0/5010 useless extension candidates. Maximal degree in co-relation 7148. Up to 1501 conditions per place. [2024-10-14 16:43:08,955 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 76 selfloop transitions, 5 changer transitions 0/514 dead transitions. [2024-10-14 16:43:08,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 514 transitions, 1204 flow [2024-10-14 16:43:08,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 16:43:08,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 16:43:08,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2782 transitions. [2024-10-14 16:43:08,959 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8507645259938837 [2024-10-14 16:43:08,959 INFO L175 Difference]: Start difference. First operand has 514 places, 515 transitions, 1044 flow. Second operand 6 states and 2782 transitions. [2024-10-14 16:43:08,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 514 transitions, 1204 flow [2024-10-14 16:43:08,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 514 transitions, 1194 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 16:43:08,965 INFO L231 Difference]: Finished difference. Result has 513 places, 514 transitions, 1042 flow [2024-10-14 16:43:08,966 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1032, PETRI_DIFFERENCE_MINUEND_PLACES=508, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=514, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=509, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1042, PETRI_PLACES=513, PETRI_TRANSITIONS=514} [2024-10-14 16:43:08,966 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -14 predicate places. [2024-10-14 16:43:08,966 INFO L471 AbstractCegarLoop]: Abstraction has has 513 places, 514 transitions, 1042 flow [2024-10-14 16:43:08,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 453.1666666666667) internal successors, (2719), 6 states have internal predecessors, (2719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:08,968 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:08,968 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:08,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 16:43:08,968 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-14 16:43:08,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:08,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1691233872, now seen corresponding path program 1 times [2024-10-14 16:43:08,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:08,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198202773] [2024-10-14 16:43:08,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:08,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:09,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:09,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:09,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198202773] [2024-10-14 16:43:09,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198202773] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:09,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:09,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:43:09,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539511008] [2024-10-14 16:43:09,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:09,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:43:09,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:09,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:43:09,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:43:10,292 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 545 [2024-10-14 16:43:10,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 514 transitions, 1042 flow. Second operand has 6 states, 6 states have (on average 453.1666666666667) internal successors, (2719), 6 states have internal predecessors, (2719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:10,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:10,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 545 [2024-10-14 16:43:10,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:10,940 INFO L124 PetriNetUnfolderBase]: 858/5625 cut-off events. [2024-10-14 16:43:10,940 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-14 16:43:10,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7229 conditions, 5625 events. 858/5625 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 45623 event pairs, 674 based on Foata normal form. 0/5010 useless extension candidates. Maximal degree in co-relation 7109. Up to 1501 conditions per place. [2024-10-14 16:43:10,964 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 76 selfloop transitions, 5 changer transitions 0/513 dead transitions. [2024-10-14 16:43:10,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 513 transitions, 1202 flow [2024-10-14 16:43:10,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 16:43:10,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 16:43:10,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2782 transitions. [2024-10-14 16:43:10,970 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8507645259938837 [2024-10-14 16:43:10,970 INFO L175 Difference]: Start difference. First operand has 513 places, 514 transitions, 1042 flow. Second operand 6 states and 2782 transitions. [2024-10-14 16:43:10,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 513 transitions, 1202 flow [2024-10-14 16:43:10,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 512 places, 513 transitions, 1192 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 16:43:10,976 INFO L231 Difference]: Finished difference. Result has 512 places, 513 transitions, 1040 flow [2024-10-14 16:43:10,977 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=507, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=513, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1040, PETRI_PLACES=512, PETRI_TRANSITIONS=513} [2024-10-14 16:43:10,978 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -15 predicate places. [2024-10-14 16:43:10,978 INFO L471 AbstractCegarLoop]: Abstraction has has 512 places, 513 transitions, 1040 flow [2024-10-14 16:43:10,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 453.1666666666667) internal successors, (2719), 6 states have internal predecessors, (2719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:10,979 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:10,979 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:10,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 16:43:10,980 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-14 16:43:10,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:10,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1648747429, now seen corresponding path program 1 times [2024-10-14 16:43:10,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:10,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237395753] [2024-10-14 16:43:10,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:10,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:11,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:11,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:11,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:11,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237395753] [2024-10-14 16:43:11,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237395753] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:11,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:11,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:43:11,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779006692] [2024-10-14 16:43:11,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:11,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:11,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:11,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:11,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:11,074 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 517 out of 545 [2024-10-14 16:43:11,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 513 transitions, 1040 flow. Second operand has 3 states, 3 states have (on average 519.0) internal successors, (1557), 3 states have internal predecessors, (1557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:11,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:11,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 517 of 545 [2024-10-14 16:43:11,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:11,462 INFO L124 PetriNetUnfolderBase]: 114/2629 cut-off events. [2024-10-14 16:43:11,463 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-14 16:43:11,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2796 conditions, 2629 events. 114/2629 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 13996 event pairs, 25 based on Foata normal form. 0/2333 useless extension candidates. Maximal degree in co-relation 2695. Up to 88 conditions per place. [2024-10-14 16:43:11,479 INFO L140 encePairwiseOnDemand]: 540/545 looper letters, 22 selfloop transitions, 4 changer transitions 0/524 dead transitions. [2024-10-14 16:43:11,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 524 transitions, 1115 flow [2024-10-14 16:43:11,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:11,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:11,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1578 transitions. [2024-10-14 16:43:11,483 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9651376146788991 [2024-10-14 16:43:11,483 INFO L175 Difference]: Start difference. First operand has 512 places, 513 transitions, 1040 flow. Second operand 3 states and 1578 transitions. [2024-10-14 16:43:11,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 524 transitions, 1115 flow [2024-10-14 16:43:11,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 509 places, 524 transitions, 1105 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 16:43:11,493 INFO L231 Difference]: Finished difference. Result has 511 places, 517 transitions, 1064 flow [2024-10-14 16:43:11,494 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=507, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=513, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=509, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1064, PETRI_PLACES=511, PETRI_TRANSITIONS=517} [2024-10-14 16:43:11,494 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -16 predicate places. [2024-10-14 16:43:11,495 INFO L471 AbstractCegarLoop]: Abstraction has has 511 places, 517 transitions, 1064 flow [2024-10-14 16:43:11,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 519.0) internal successors, (1557), 3 states have internal predecessors, (1557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:11,497 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:11,497 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:11,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 16:43:11,497 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-14 16:43:11,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:11,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1833150553, now seen corresponding path program 1 times [2024-10-14 16:43:11,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:11,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610963263] [2024-10-14 16:43:11,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:11,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:12,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:12,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:12,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610963263] [2024-10-14 16:43:12,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610963263] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:12,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:12,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 16:43:12,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483716824] [2024-10-14 16:43:12,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:12,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 16:43:12,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:12,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 16:43:12,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-10-14 16:43:13,852 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 545 [2024-10-14 16:43:13,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 517 transitions, 1064 flow. Second operand has 13 states, 13 states have (on average 487.9230769230769) internal successors, (6343), 13 states have internal predecessors, (6343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:13,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:13,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 545 [2024-10-14 16:43:13,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:14,591 INFO L124 PetriNetUnfolderBase]: 251/4151 cut-off events. [2024-10-14 16:43:14,592 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-10-14 16:43:14,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4653 conditions, 4151 events. 251/4151 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 28777 event pairs, 81 based on Foata normal form. 0/3693 useless extension candidates. Maximal degree in co-relation 4177. Up to 356 conditions per place. [2024-10-14 16:43:14,620 INFO L140 encePairwiseOnDemand]: 527/545 looper letters, 32 selfloop transitions, 17 changer transitions 0/519 dead transitions. [2024-10-14 16:43:14,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 519 transitions, 1168 flow [2024-10-14 16:43:14,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 16:43:14,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-14 16:43:14,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 5882 transitions. [2024-10-14 16:43:14,630 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.899388379204893 [2024-10-14 16:43:14,631 INFO L175 Difference]: Start difference. First operand has 511 places, 517 transitions, 1064 flow. Second operand 12 states and 5882 transitions. [2024-10-14 16:43:14,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 519 transitions, 1168 flow [2024-10-14 16:43:14,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 517 places, 519 transitions, 1160 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 16:43:14,639 INFO L231 Difference]: Finished difference. Result has 518 places, 515 transitions, 1097 flow [2024-10-14 16:43:14,639 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1048, PETRI_DIFFERENCE_MINUEND_PLACES=506, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=513, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1097, PETRI_PLACES=518, PETRI_TRANSITIONS=515} [2024-10-14 16:43:14,640 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -9 predicate places. [2024-10-14 16:43:14,640 INFO L471 AbstractCegarLoop]: Abstraction has has 518 places, 515 transitions, 1097 flow [2024-10-14 16:43:14,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 487.9230769230769) internal successors, (6343), 13 states have internal predecessors, (6343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:14,643 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:14,644 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:14,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 16:43:14,644 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-14 16:43:14,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:14,644 INFO L85 PathProgramCache]: Analyzing trace with hash -2140385120, now seen corresponding path program 1 times [2024-10-14 16:43:14,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:14,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550605833] [2024-10-14 16:43:14,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:14,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:15,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:15,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:15,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550605833] [2024-10-14 16:43:15,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550605833] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:15,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:15,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:43:15,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375324174] [2024-10-14 16:43:15,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:15,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:43:15,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:15,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:43:15,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:43:15,937 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 421 out of 545 [2024-10-14 16:43:15,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 518 places, 515 transitions, 1097 flow. Second operand has 6 states, 6 states have (on average 424.5) internal successors, (2547), 6 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:15,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:15,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 421 of 545 [2024-10-14 16:43:15,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:18,086 INFO L124 PetriNetUnfolderBase]: 3134/14428 cut-off events. [2024-10-14 16:43:18,087 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-10-14 16:43:18,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20717 conditions, 14428 events. 3134/14428 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 132033 event pairs, 1321 based on Foata normal form. 0/13026 useless extension candidates. Maximal degree in co-relation 19926. Up to 4553 conditions per place. [2024-10-14 16:43:18,197 INFO L140 encePairwiseOnDemand]: 491/545 looper letters, 125 selfloop transitions, 84 changer transitions 0/613 dead transitions. [2024-10-14 16:43:18,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 523 places, 613 transitions, 1719 flow [2024-10-14 16:43:18,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 16:43:18,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 16:43:18,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2741 transitions. [2024-10-14 16:43:18,203 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8382262996941896 [2024-10-14 16:43:18,203 INFO L175 Difference]: Start difference. First operand has 518 places, 515 transitions, 1097 flow. Second operand 6 states and 2741 transitions. [2024-10-14 16:43:18,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 523 places, 613 transitions, 1719 flow [2024-10-14 16:43:18,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 613 transitions, 1692 flow, removed 0 selfloop flow, removed 10 redundant places. [2024-10-14 16:43:18,213 INFO L231 Difference]: Finished difference. Result has 518 places, 595 transitions, 1666 flow [2024-10-14 16:43:18,214 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1070, PETRI_DIFFERENCE_MINUEND_PLACES=508, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=515, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1666, PETRI_PLACES=518, PETRI_TRANSITIONS=595} [2024-10-14 16:43:18,215 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -9 predicate places. [2024-10-14 16:43:18,215 INFO L471 AbstractCegarLoop]: Abstraction has has 518 places, 595 transitions, 1666 flow [2024-10-14 16:43:18,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 424.5) internal successors, (2547), 6 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:18,216 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:18,216 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:18,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 16:43:18,216 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-14 16:43:18,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:18,220 INFO L85 PathProgramCache]: Analyzing trace with hash 724346284, now seen corresponding path program 1 times [2024-10-14 16:43:18,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:18,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077457267] [2024-10-14 16:43:18,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:18,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:18,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:18,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:18,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077457267] [2024-10-14 16:43:18,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077457267] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:18,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:18,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 16:43:18,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32822793] [2024-10-14 16:43:18,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:18,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:18,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:18,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:18,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:18,404 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 518 out of 545 [2024-10-14 16:43:18,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 518 places, 595 transitions, 1666 flow. Second operand has 3 states, 3 states have (on average 520.0) internal successors, (1560), 3 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:18,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:18,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 518 of 545 [2024-10-14 16:43:18,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:20,063 INFO L124 PetriNetUnfolderBase]: 990/8697 cut-off events. [2024-10-14 16:43:20,063 INFO L125 PetriNetUnfolderBase]: For 621/633 co-relation queries the response was YES. [2024-10-14 16:43:20,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12457 conditions, 8697 events. 990/8697 cut-off events. For 621/633 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 73822 event pairs, 110 based on Foata normal form. 24/7934 useless extension candidates. Maximal degree in co-relation 11823. Up to 966 conditions per place. [2024-10-14 16:43:20,127 INFO L140 encePairwiseOnDemand]: 541/545 looper letters, 18 selfloop transitions, 3 changer transitions 0/581 dead transitions. [2024-10-14 16:43:20,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 581 transitions, 1627 flow [2024-10-14 16:43:20,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:20,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:20,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1576 transitions. [2024-10-14 16:43:20,131 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.963914373088685 [2024-10-14 16:43:20,131 INFO L175 Difference]: Start difference. First operand has 518 places, 595 transitions, 1666 flow. Second operand 3 states and 1576 transitions. [2024-10-14 16:43:20,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 581 transitions, 1627 flow [2024-10-14 16:43:20,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 581 transitions, 1599 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-10-14 16:43:20,148 INFO L231 Difference]: Finished difference. Result has 516 places, 575 transitions, 1555 flow [2024-10-14 16:43:20,149 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1540, PETRI_DIFFERENCE_MINUEND_PLACES=513, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=574, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=571, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1555, PETRI_PLACES=516, PETRI_TRANSITIONS=575} [2024-10-14 16:43:20,149 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -11 predicate places. [2024-10-14 16:43:20,150 INFO L471 AbstractCegarLoop]: Abstraction has has 516 places, 575 transitions, 1555 flow [2024-10-14 16:43:20,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 520.0) internal successors, (1560), 3 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:20,150 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:20,151 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:20,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 16:43:20,151 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-14 16:43:20,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:20,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1224579267, now seen corresponding path program 1 times [2024-10-14 16:43:20,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:20,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952643947] [2024-10-14 16:43:20,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:20,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:20,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:20,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:20,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952643947] [2024-10-14 16:43:20,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952643947] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:20,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:20,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:43:20,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447670897] [2024-10-14 16:43:20,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:20,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:43:20,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:20,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:43:20,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:43:21,171 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 545 [2024-10-14 16:43:21,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 575 transitions, 1555 flow. Second operand has 6 states, 6 states have (on average 374.8333333333333) internal successors, (2249), 6 states have internal predecessors, (2249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:21,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:21,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 545 [2024-10-14 16:43:21,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:25,750 INFO L124 PetriNetUnfolderBase]: 6037/22353 cut-off events. [2024-10-14 16:43:25,751 INFO L125 PetriNetUnfolderBase]: For 4260/4491 co-relation queries the response was YES. [2024-10-14 16:43:25,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40931 conditions, 22353 events. 6037/22353 cut-off events. For 4260/4491 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 221950 event pairs, 3626 based on Foata normal form. 30/20339 useless extension candidates. Maximal degree in co-relation 39596. Up to 11092 conditions per place. [2024-10-14 16:43:25,867 INFO L140 encePairwiseOnDemand]: 496/545 looper letters, 228 selfloop transitions, 156 changer transitions 0/735 dead transitions. [2024-10-14 16:43:25,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 735 transitions, 2747 flow [2024-10-14 16:43:25,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 16:43:25,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 16:43:25,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2539 transitions. [2024-10-14 16:43:25,879 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7764525993883792 [2024-10-14 16:43:25,883 INFO L175 Difference]: Start difference. First operand has 516 places, 575 transitions, 1555 flow. Second operand 6 states and 2539 transitions. [2024-10-14 16:43:25,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 735 transitions, 2747 flow [2024-10-14 16:43:25,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 519 places, 735 transitions, 2744 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 16:43:25,916 INFO L231 Difference]: Finished difference. Result has 524 places, 723 transitions, 2652 flow [2024-10-14 16:43:25,917 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1550, PETRI_DIFFERENCE_MINUEND_PLACES=514, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=574, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=526, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2652, PETRI_PLACES=524, PETRI_TRANSITIONS=723} [2024-10-14 16:43:25,917 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -3 predicate places. [2024-10-14 16:43:25,917 INFO L471 AbstractCegarLoop]: Abstraction has has 524 places, 723 transitions, 2652 flow [2024-10-14 16:43:25,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 374.8333333333333) internal successors, (2249), 6 states have internal predecessors, (2249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:25,918 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:25,918 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:25,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 16:43:25,918 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-14 16:43:25,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:25,919 INFO L85 PathProgramCache]: Analyzing trace with hash 767111874, now seen corresponding path program 1 times [2024-10-14 16:43:25,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:25,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405558384] [2024-10-14 16:43:25,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:25,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:26,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:26,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:26,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405558384] [2024-10-14 16:43:26,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405558384] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:26,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:26,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:43:26,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176642399] [2024-10-14 16:43:26,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:26,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:43:26,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:26,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:43:26,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:43:27,311 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 545 [2024-10-14 16:43:27,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 723 transitions, 2652 flow. Second operand has 6 states, 6 states have (on average 459.1666666666667) internal successors, (2755), 6 states have internal predecessors, (2755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:27,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:27,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 545 [2024-10-14 16:43:27,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:29,576 INFO L124 PetriNetUnfolderBase]: 2727/14385 cut-off events. [2024-10-14 16:43:29,576 INFO L125 PetriNetUnfolderBase]: For 4611/5292 co-relation queries the response was YES. [2024-10-14 16:43:29,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27397 conditions, 14385 events. 2727/14385 cut-off events. For 4611/5292 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 139874 event pairs, 749 based on Foata normal form. 51/13145 useless extension candidates. Maximal degree in co-relation 26423. Up to 3595 conditions per place. [2024-10-14 16:43:29,633 INFO L140 encePairwiseOnDemand]: 520/545 looper letters, 182 selfloop transitions, 59 changer transitions 0/787 dead transitions. [2024-10-14 16:43:29,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 787 transitions, 3462 flow [2024-10-14 16:43:29,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 16:43:29,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 16:43:29,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2873 transitions. [2024-10-14 16:43:29,640 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8785932721712538 [2024-10-14 16:43:29,641 INFO L175 Difference]: Start difference. First operand has 524 places, 723 transitions, 2652 flow. Second operand 6 states and 2873 transitions. [2024-10-14 16:43:29,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 787 transitions, 3462 flow [2024-10-14 16:43:29,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 787 transitions, 3366 flow, removed 48 selfloop flow, removed 0 redundant places. [2024-10-14 16:43:29,688 INFO L231 Difference]: Finished difference. Result has 533 places, 775 transitions, 3124 flow [2024-10-14 16:43:29,690 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=2554, PETRI_DIFFERENCE_MINUEND_PLACES=523, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=722, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=699, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3124, PETRI_PLACES=533, PETRI_TRANSITIONS=775} [2024-10-14 16:43:29,694 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, 6 predicate places. [2024-10-14 16:43:29,694 INFO L471 AbstractCegarLoop]: Abstraction has has 533 places, 775 transitions, 3124 flow [2024-10-14 16:43:29,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 459.1666666666667) internal successors, (2755), 6 states have internal predecessors, (2755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:29,696 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:29,696 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:29,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 16:43:29,697 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-14 16:43:29,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:29,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1826880967, now seen corresponding path program 1 times [2024-10-14 16:43:29,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:29,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885905921] [2024-10-14 16:43:29,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:29,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:30,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:30,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:30,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885905921] [2024-10-14 16:43:30,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885905921] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:30,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:30,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:43:30,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194856782] [2024-10-14 16:43:30,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:30,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:43:30,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:30,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:43:30,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:43:30,971 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 545 [2024-10-14 16:43:30,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 533 places, 775 transitions, 3124 flow. Second operand has 6 states, 6 states have (on average 417.5) internal successors, (2505), 6 states have internal predecessors, (2505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:30,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:30,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 545 [2024-10-14 16:43:30,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:34,366 INFO L124 PetriNetUnfolderBase]: 4709/19168 cut-off events. [2024-10-14 16:43:34,366 INFO L125 PetriNetUnfolderBase]: For 8408/8742 co-relation queries the response was YES. [2024-10-14 16:43:34,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41167 conditions, 19168 events. 4709/19168 cut-off events. For 8408/8742 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 188948 event pairs, 1581 based on Foata normal form. 59/17580 useless extension candidates. Maximal degree in co-relation 40081. Up to 7811 conditions per place. [2024-10-14 16:43:34,461 INFO L140 encePairwiseOnDemand]: 496/545 looper letters, 374 selfloop transitions, 156 changer transitions 0/935 dead transitions. [2024-10-14 16:43:34,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 537 places, 935 transitions, 4992 flow [2024-10-14 16:43:34,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 16:43:34,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 16:43:34,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2749 transitions. [2024-10-14 16:43:34,465 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8406727828746178 [2024-10-14 16:43:34,465 INFO L175 Difference]: Start difference. First operand has 533 places, 775 transitions, 3124 flow. Second operand 6 states and 2749 transitions. [2024-10-14 16:43:34,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 537 places, 935 transitions, 4992 flow [2024-10-14 16:43:34,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 537 places, 935 transitions, 4896 flow, removed 48 selfloop flow, removed 0 redundant places. [2024-10-14 16:43:34,499 INFO L231 Difference]: Finished difference. Result has 542 places, 923 transitions, 4512 flow [2024-10-14 16:43:34,499 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=3026, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=774, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=726, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4512, PETRI_PLACES=542, PETRI_TRANSITIONS=923} [2024-10-14 16:43:34,500 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, 15 predicate places. [2024-10-14 16:43:34,500 INFO L471 AbstractCegarLoop]: Abstraction has has 542 places, 923 transitions, 4512 flow [2024-10-14 16:43:34,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 417.5) internal successors, (2505), 6 states have internal predecessors, (2505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:34,504 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:34,504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:34,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 16:43:34,504 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-14 16:43:34,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:34,505 INFO L85 PathProgramCache]: Analyzing trace with hash 767497366, now seen corresponding path program 1 times [2024-10-14 16:43:34,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:34,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879872617] [2024-10-14 16:43:34,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:34,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:34,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:34,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:34,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879872617] [2024-10-14 16:43:34,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879872617] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:34,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:34,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:43:34,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328820311] [2024-10-14 16:43:34,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:34,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:43:34,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:34,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:43:34,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:43:35,576 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 545 [2024-10-14 16:43:35,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 923 transitions, 4512 flow. Second operand has 6 states, 6 states have (on average 388.3333333333333) internal successors, (2330), 6 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:35,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:35,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 545 [2024-10-14 16:43:35,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:40,815 INFO L124 PetriNetUnfolderBase]: 7084/25770 cut-off events. [2024-10-14 16:43:40,815 INFO L125 PetriNetUnfolderBase]: For 18979/19397 co-relation queries the response was YES. [2024-10-14 16:43:41,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62975 conditions, 25770 events. 7084/25770 cut-off events. For 18979/19397 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 262135 event pairs, 2895 based on Foata normal form. 58/23724 useless extension candidates. Maximal degree in co-relation 61630. Up to 11984 conditions per place. [2024-10-14 16:43:41,157 INFO L140 encePairwiseOnDemand]: 496/545 looper letters, 558 selfloop transitions, 156 changer transitions 0/1083 dead transitions. [2024-10-14 16:43:41,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 1083 transitions, 7036 flow [2024-10-14 16:43:41,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 16:43:41,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 16:43:41,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2599 transitions. [2024-10-14 16:43:41,163 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7948012232415902 [2024-10-14 16:43:41,163 INFO L175 Difference]: Start difference. First operand has 542 places, 923 transitions, 4512 flow. Second operand 6 states and 2599 transitions. [2024-10-14 16:43:41,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 1083 transitions, 7036 flow [2024-10-14 16:43:41,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 1083 transitions, 6556 flow, removed 240 selfloop flow, removed 0 redundant places. [2024-10-14 16:43:41,209 INFO L231 Difference]: Finished difference. Result has 551 places, 1071 transitions, 5804 flow [2024-10-14 16:43:41,210 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=4030, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=922, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=874, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5804, PETRI_PLACES=551, PETRI_TRANSITIONS=1071} [2024-10-14 16:43:41,211 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, 24 predicate places. [2024-10-14 16:43:41,211 INFO L471 AbstractCegarLoop]: Abstraction has has 551 places, 1071 transitions, 5804 flow [2024-10-14 16:43:41,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 388.3333333333333) internal successors, (2330), 6 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:41,211 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:41,211 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:41,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 16:43:41,212 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-14 16:43:41,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:41,212 INFO L85 PathProgramCache]: Analyzing trace with hash 2075079204, now seen corresponding path program 1 times [2024-10-14 16:43:41,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:41,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970183314] [2024-10-14 16:43:41,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:41,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:41,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:41,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:41,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970183314] [2024-10-14 16:43:41,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970183314] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:41,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:41,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:43:41,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760947585] [2024-10-14 16:43:41,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:41,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:43:41,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:41,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:43:41,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:43:42,280 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 545 [2024-10-14 16:43:42,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 551 places, 1071 transitions, 5804 flow. Second operand has 6 states, 6 states have (on average 389.1666666666667) internal successors, (2335), 6 states have internal predecessors, (2335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:42,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:42,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 545 [2024-10-14 16:43:42,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand