./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/goblint-regression/09-regions_04-list2_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:06:56,646 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:06:56,696 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:06:56,702 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:06:56,703 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:06:56,726 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:06:56,726 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:06:56,727 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:06:56,727 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:06:56,728 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:06:56,729 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:06:56,729 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:06:56,729 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:06:56,731 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:06:56,731 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:06:56,731 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:06:56,732 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:06:56,732 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:06:56,735 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:06:56,735 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:06:56,735 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:06:56,735 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:06:56,736 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:06:56,736 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:06:56,736 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:06:56,736 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:06:56,736 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:06:56,736 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:06:56,737 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:06:56,737 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:06:56,737 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:06:56,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:06:56,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:06:56,738 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:06:56,738 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:06:56,738 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:06:56,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:06:56,738 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:06:56,738 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:06:56,738 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:06:56,739 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:06:56,739 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 [2024-10-11 17:06:56,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:06:56,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:06:56,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:06:56,999 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:06:56,999 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:06:57,000 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2024-10-11 17:06:58,323 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:06:58,542 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:06:58,543 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2024-10-11 17:06:58,558 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/860fbbdd3/ddda543b37d248e28387dc5d77ad2a6b/FLAGdae91cb39 [2024-10-11 17:06:58,569 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/860fbbdd3/ddda543b37d248e28387dc5d77ad2a6b [2024-10-11 17:06:58,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:06:58,571 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:06:58,572 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:06:58,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:06:58,576 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:06:58,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:06:58" (1/1) ... [2024-10-11 17:06:58,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b461f80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:58, skipping insertion in model container [2024-10-11 17:06:58,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:06:58" (1/1) ... [2024-10-11 17:06:58,627 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:06:59,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:06:59,099 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:06:59,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:06:59,288 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:06:59,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:59 WrapperNode [2024-10-11 17:06:59,288 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:06:59,289 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:06:59,290 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:06:59,290 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:06:59,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:59" (1/1) ... [2024-10-11 17:06:59,311 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:59" (1/1) ... [2024-10-11 17:06:59,340 INFO L138 Inliner]: procedures = 368, calls = 45, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 199 [2024-10-11 17:06:59,343 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:06:59,344 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:06:59,344 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:06:59,344 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:06:59,351 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:59" (1/1) ... [2024-10-11 17:06:59,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:59" (1/1) ... [2024-10-11 17:06:59,356 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:59" (1/1) ... [2024-10-11 17:06:59,356 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:59" (1/1) ... [2024-10-11 17:06:59,368 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:59" (1/1) ... [2024-10-11 17:06:59,370 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:59" (1/1) ... [2024-10-11 17:06:59,371 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:59" (1/1) ... [2024-10-11 17:06:59,373 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:59" (1/1) ... [2024-10-11 17:06:59,375 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:06:59,376 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:06:59,376 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:06:59,376 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:06:59,377 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:59" (1/1) ... [2024-10-11 17:06:59,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:06:59,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:06:59,403 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:06:59,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:06:59,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-11 17:06:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:06:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 17:06:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 17:06:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:06:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 17:06:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:06:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-11 17:06:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 17:06:59,440 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 17:06:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 17:06:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:06:59,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:06:59,441 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 17:06:59,546 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:06:59,548 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:06:59,906 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:06:59,908 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:06:59,945 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:06:59,945 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 17:06:59,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:06:59 BoogieIcfgContainer [2024-10-11 17:06:59,947 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:06:59,948 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:06:59,948 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:06:59,951 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:06:59,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:06:58" (1/3) ... [2024-10-11 17:06:59,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@348260b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:06:59, skipping insertion in model container [2024-10-11 17:06:59,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:59" (2/3) ... [2024-10-11 17:06:59,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@348260b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:06:59, skipping insertion in model container [2024-10-11 17:06:59,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:06:59" (3/3) ... [2024-10-11 17:06:59,954 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_04-list2_nr.i [2024-10-11 17:06:59,969 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:06:59,970 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2024-10-11 17:06:59,970 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:07:00,036 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 17:07:00,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 307 places, 303 transitions, 610 flow [2024-10-11 17:07:00,194 INFO L124 PetriNetUnfolderBase]: 0/302 cut-off events. [2024-10-11 17:07:00,195 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:00,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 302 events. 0/302 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 162 event pairs, 0 based on Foata normal form. 0/272 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-10-11 17:07:00,199 INFO L82 GeneralOperation]: Start removeDead. Operand has 307 places, 303 transitions, 610 flow [2024-10-11 17:07:00,204 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 306 places, 302 transitions, 607 flow [2024-10-11 17:07:00,210 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:07:00,217 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;@5b52ee14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:07:00,218 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-10-11 17:07:00,224 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:07:00,224 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2024-10-11 17:07:00,224 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:00,224 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:00,225 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] [2024-10-11 17:07:00,228 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:07:00,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:00,233 INFO L85 PathProgramCache]: Analyzing trace with hash 665820996, now seen corresponding path program 1 times [2024-10-11 17:07:00,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:00,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032520688] [2024-10-11 17:07:00,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:00,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:00,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:00,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:00,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032520688] [2024-10-11 17:07:00,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032520688] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:00,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:00,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:00,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544055870] [2024-10-11 17:07:00,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:00,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:00,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:00,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:00,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:01,471 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 303 [2024-10-11 17:07:01,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 302 transitions, 607 flow. Second operand has 6 states, 6 states have (on average 203.33333333333334) internal successors, (1220), 6 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:01,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:01,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 303 [2024-10-11 17:07:01,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:01,902 INFO L124 PetriNetUnfolderBase]: 560/2351 cut-off events. [2024-10-11 17:07:01,903 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:07:01,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3573 conditions, 2351 events. 560/2351 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 14877 event pairs, 560 based on Foata normal form. 0/2140 useless extension candidates. Maximal degree in co-relation 3350. Up to 1198 conditions per place. [2024-10-11 17:07:01,925 INFO L140 encePairwiseOnDemand]: 279/303 looper letters, 77 selfloop transitions, 20 changer transitions 0/298 dead transitions. [2024-10-11 17:07:01,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 298 transitions, 793 flow [2024-10-11 17:07:01,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:01,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:01,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1313 transitions. [2024-10-11 17:07:01,946 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2024-10-11 17:07:01,950 INFO L175 Difference]: Start difference. First operand has 306 places, 302 transitions, 607 flow. Second operand 6 states and 1313 transitions. [2024-10-11 17:07:01,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 298 transitions, 793 flow [2024-10-11 17:07:01,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 298 transitions, 792 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:07:01,961 INFO L231 Difference]: Finished difference. Result has 306 places, 298 transitions, 638 flow [2024-10-11 17:07:01,964 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=638, PETRI_PLACES=306, PETRI_TRANSITIONS=298} [2024-10-11 17:07:01,969 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 0 predicate places. [2024-10-11 17:07:01,969 INFO L471 AbstractCegarLoop]: Abstraction has has 306 places, 298 transitions, 638 flow [2024-10-11 17:07:01,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 203.33333333333334) internal successors, (1220), 6 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:01,970 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:01,970 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] [2024-10-11 17:07:01,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:07:01,971 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:07:01,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:01,973 INFO L85 PathProgramCache]: Analyzing trace with hash -806874686, now seen corresponding path program 1 times [2024-10-11 17:07:01,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:01,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086982583] [2024-10-11 17:07:01,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:01,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:02,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:02,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:02,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086982583] [2024-10-11 17:07:02,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086982583] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:02,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:02,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:02,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513743320] [2024-10-11 17:07:02,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:02,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:02,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:02,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:02,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:02,833 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 303 [2024-10-11 17:07:02,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 298 transitions, 638 flow. Second operand has 6 states, 6 states have (on average 203.33333333333334) internal successors, (1220), 6 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:02,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:02,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 303 [2024-10-11 17:07:02,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:03,156 INFO L124 PetriNetUnfolderBase]: 560/2347 cut-off events. [2024-10-11 17:07:03,156 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:03,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3589 conditions, 2347 events. 560/2347 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 14857 event pairs, 560 based on Foata normal form. 0/2140 useless extension candidates. Maximal degree in co-relation 3391. Up to 1198 conditions per place. [2024-10-11 17:07:03,165 INFO L140 encePairwiseOnDemand]: 279/303 looper letters, 77 selfloop transitions, 20 changer transitions 0/294 dead transitions. [2024-10-11 17:07:03,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 294 transitions, 824 flow [2024-10-11 17:07:03,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:03,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:03,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1313 transitions. [2024-10-11 17:07:03,168 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2024-10-11 17:07:03,168 INFO L175 Difference]: Start difference. First operand has 306 places, 298 transitions, 638 flow. Second operand 6 states and 1313 transitions. [2024-10-11 17:07:03,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 294 transitions, 824 flow [2024-10-11 17:07:03,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 294 transitions, 784 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:07:03,172 INFO L231 Difference]: Finished difference. Result has 302 places, 294 transitions, 630 flow [2024-10-11 17:07:03,173 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=630, PETRI_PLACES=302, PETRI_TRANSITIONS=294} [2024-10-11 17:07:03,173 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -4 predicate places. [2024-10-11 17:07:03,173 INFO L471 AbstractCegarLoop]: Abstraction has has 302 places, 294 transitions, 630 flow [2024-10-11 17:07:03,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 203.33333333333334) internal successors, (1220), 6 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:03,174 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:03,174 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] [2024-10-11 17:07:03,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:07:03,175 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:07:03,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:03,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1190899758, now seen corresponding path program 1 times [2024-10-11 17:07:03,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:03,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165838024] [2024-10-11 17:07:03,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:03,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:03,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:03,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:03,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:03,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165838024] [2024-10-11 17:07:03,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165838024] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:03,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:03,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:07:03,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61398207] [2024-10-11 17:07:03,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:03,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:07:03,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:03,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:07:03,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:07:03,227 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 303 [2024-10-11 17:07:03,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 294 transitions, 630 flow. Second operand has 3 states, 3 states have (on average 284.3333333333333) internal successors, (853), 3 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:03,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:03,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 303 [2024-10-11 17:07:03,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:03,298 INFO L124 PetriNetUnfolderBase]: 30/743 cut-off events. [2024-10-11 17:07:03,298 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:03,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 847 conditions, 743 events. 30/743 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2643 event pairs, 30 based on Foata normal form. 0/668 useless extension candidates. Maximal degree in co-relation 671. Up to 78 conditions per place. [2024-10-11 17:07:03,301 INFO L140 encePairwiseOnDemand]: 300/303 looper letters, 17 selfloop transitions, 2 changer transitions 0/293 dead transitions. [2024-10-11 17:07:03,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 293 transitions, 666 flow [2024-10-11 17:07:03,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:07:03,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:07:03,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 869 transitions. [2024-10-11 17:07:03,303 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9559955995599559 [2024-10-11 17:07:03,303 INFO L175 Difference]: Start difference. First operand has 302 places, 294 transitions, 630 flow. Second operand 3 states and 869 transitions. [2024-10-11 17:07:03,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 293 transitions, 666 flow [2024-10-11 17:07:03,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 293 transitions, 626 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:07:03,307 INFO L231 Difference]: Finished difference. Result has 298 places, 293 transitions, 592 flow [2024-10-11 17:07:03,308 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=592, PETRI_PLACES=298, PETRI_TRANSITIONS=293} [2024-10-11 17:07:03,308 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -8 predicate places. [2024-10-11 17:07:03,309 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 293 transitions, 592 flow [2024-10-11 17:07:03,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 284.3333333333333) internal successors, (853), 3 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:03,309 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:03,309 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] [2024-10-11 17:07:03,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:07:03,310 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:07:03,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:03,310 INFO L85 PathProgramCache]: Analyzing trace with hash -51795839, now seen corresponding path program 1 times [2024-10-11 17:07:03,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:03,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567885781] [2024-10-11 17:07:03,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:03,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:03,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:03,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:03,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:03,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567885781] [2024-10-11 17:07:03,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567885781] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:03,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:03,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:07:03,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221881636] [2024-10-11 17:07:03,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:03,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:07:03,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:03,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:07:03,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:07:03,363 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 303 [2024-10-11 17:07:03,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 293 transitions, 592 flow. Second operand has 3 states, 3 states have (on average 282.0) internal successors, (846), 3 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:03,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:03,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 303 [2024-10-11 17:07:03,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:03,428 INFO L124 PetriNetUnfolderBase]: 36/775 cut-off events. [2024-10-11 17:07:03,428 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:07:03,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 872 conditions, 775 events. 36/775 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2999 event pairs, 36 based on Foata normal form. 0/706 useless extension candidates. Maximal degree in co-relation 813. Up to 89 conditions per place. [2024-10-11 17:07:03,431 INFO L140 encePairwiseOnDemand]: 298/303 looper letters, 17 selfloop transitions, 1 changer transitions 0/289 dead transitions. [2024-10-11 17:07:03,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 289 transitions, 620 flow [2024-10-11 17:07:03,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:07:03,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:07:03,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 865 transitions. [2024-10-11 17:07:03,433 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9515951595159516 [2024-10-11 17:07:03,433 INFO L175 Difference]: Start difference. First operand has 298 places, 293 transitions, 592 flow. Second operand 3 states and 865 transitions. [2024-10-11 17:07:03,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 289 transitions, 620 flow [2024-10-11 17:07:03,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 289 transitions, 616 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:07:03,437 INFO L231 Difference]: Finished difference. Result has 294 places, 289 transitions, 582 flow [2024-10-11 17:07:03,438 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=582, PETRI_PLACES=294, PETRI_TRANSITIONS=289} [2024-10-11 17:07:03,438 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -12 predicate places. [2024-10-11 17:07:03,439 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 289 transitions, 582 flow [2024-10-11 17:07:03,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 282.0) internal successors, (846), 3 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:03,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:03,439 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] [2024-10-11 17:07:03,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:07:03,440 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:07:03,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:03,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1997372483, now seen corresponding path program 1 times [2024-10-11 17:07:03,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:03,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555706460] [2024-10-11 17:07:03,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:03,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:03,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:03,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:03,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555706460] [2024-10-11 17:07:03,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555706460] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:03,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:03,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:03,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655657934] [2024-10-11 17:07:03,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:03,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:03,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:03,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:03,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:04,119 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 303 [2024-10-11 17:07:04,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 289 transitions, 582 flow. Second operand has 6 states, 6 states have (on average 208.16666666666666) internal successors, (1249), 6 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:04,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:04,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 303 [2024-10-11 17:07:04,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:04,551 INFO L124 PetriNetUnfolderBase]: 638/2544 cut-off events. [2024-10-11 17:07:04,551 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:04,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3924 conditions, 2544 events. 638/2544 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 16231 event pairs, 638 based on Foata normal form. 0/2342 useless extension candidates. Maximal degree in co-relation 3855. Up to 1370 conditions per place. [2024-10-11 17:07:04,559 INFO L140 encePairwiseOnDemand]: 297/303 looper letters, 93 selfloop transitions, 5 changer transitions 0/288 dead transitions. [2024-10-11 17:07:04,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 288 transitions, 776 flow [2024-10-11 17:07:04,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:04,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:04,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1323 transitions. [2024-10-11 17:07:04,562 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7277227722772277 [2024-10-11 17:07:04,562 INFO L175 Difference]: Start difference. First operand has 294 places, 289 transitions, 582 flow. Second operand 6 states and 1323 transitions. [2024-10-11 17:07:04,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 288 transitions, 776 flow [2024-10-11 17:07:04,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 288 transitions, 775 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:07:04,566 INFO L231 Difference]: Finished difference. Result has 297 places, 288 transitions, 589 flow [2024-10-11 17:07:04,566 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=579, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=589, PETRI_PLACES=297, PETRI_TRANSITIONS=288} [2024-10-11 17:07:04,567 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -9 predicate places. [2024-10-11 17:07:04,567 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 288 transitions, 589 flow [2024-10-11 17:07:04,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 208.16666666666666) internal successors, (1249), 6 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:04,568 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:04,568 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] [2024-10-11 17:07:04,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 17:07:04,568 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:07:04,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:04,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1310489849, now seen corresponding path program 1 times [2024-10-11 17:07:04,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:04,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141139950] [2024-10-11 17:07:04,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:04,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:04,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:04,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:04,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:04,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141139950] [2024-10-11 17:07:04,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141139950] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:04,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:04,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:07:04,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139547574] [2024-10-11 17:07:04,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:04,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:07:04,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:04,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:07:04,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:07:04,652 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 303 [2024-10-11 17:07:04,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 288 transitions, 589 flow. Second operand has 3 states, 3 states have (on average 284.3333333333333) internal successors, (853), 3 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:04,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:04,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 303 [2024-10-11 17:07:04,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:04,711 INFO L124 PetriNetUnfolderBase]: 30/731 cut-off events. [2024-10-11 17:07:04,711 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:04,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 821 conditions, 731 events. 30/731 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2651 event pairs, 30 based on Foata normal form. 0/670 useless extension candidates. Maximal degree in co-relation 762. Up to 78 conditions per place. [2024-10-11 17:07:04,713 INFO L140 encePairwiseOnDemand]: 300/303 looper letters, 17 selfloop transitions, 2 changer transitions 0/287 dead transitions. [2024-10-11 17:07:04,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 287 transitions, 625 flow [2024-10-11 17:07:04,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:07:04,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:07:04,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 869 transitions. [2024-10-11 17:07:04,715 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9559955995599559 [2024-10-11 17:07:04,715 INFO L175 Difference]: Start difference. First operand has 297 places, 288 transitions, 589 flow. Second operand 3 states and 869 transitions. [2024-10-11 17:07:04,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 287 transitions, 625 flow [2024-10-11 17:07:04,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 287 transitions, 615 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:07:04,719 INFO L231 Difference]: Finished difference. Result has 293 places, 287 transitions, 581 flow [2024-10-11 17:07:04,719 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=577, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=581, PETRI_PLACES=293, PETRI_TRANSITIONS=287} [2024-10-11 17:07:04,721 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -13 predicate places. [2024-10-11 17:07:04,721 INFO L471 AbstractCegarLoop]: Abstraction has has 293 places, 287 transitions, 581 flow [2024-10-11 17:07:04,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 284.3333333333333) internal successors, (853), 3 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:04,722 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:04,722 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] [2024-10-11 17:07:04,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 17:07:04,722 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:07:04,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:04,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1070039900, now seen corresponding path program 1 times [2024-10-11 17:07:04,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:04,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477983804] [2024-10-11 17:07:04,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:04,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:04,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:04,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:04,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477983804] [2024-10-11 17:07:04,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477983804] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:04,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:04,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:07:04,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120593226] [2024-10-11 17:07:04,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:04,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:07:04,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:04,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:07:04,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:07:04,791 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 303 [2024-10-11 17:07:04,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 287 transitions, 581 flow. Second operand has 3 states, 3 states have (on average 282.0) internal successors, (846), 3 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:04,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:04,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 303 [2024-10-11 17:07:04,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:04,854 INFO L124 PetriNetUnfolderBase]: 36/759 cut-off events. [2024-10-11 17:07:04,854 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:07:04,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 857 conditions, 759 events. 36/759 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2902 event pairs, 36 based on Foata normal form. 0/703 useless extension candidates. Maximal degree in co-relation 799. Up to 89 conditions per place. [2024-10-11 17:07:04,856 INFO L140 encePairwiseOnDemand]: 298/303 looper letters, 17 selfloop transitions, 1 changer transitions 0/283 dead transitions. [2024-10-11 17:07:04,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 283 transitions, 609 flow [2024-10-11 17:07:04,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:07:04,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:07:04,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 865 transitions. [2024-10-11 17:07:04,858 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9515951595159516 [2024-10-11 17:07:04,858 INFO L175 Difference]: Start difference. First operand has 293 places, 287 transitions, 581 flow. Second operand 3 states and 865 transitions. [2024-10-11 17:07:04,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 283 transitions, 609 flow [2024-10-11 17:07:04,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 283 transitions, 605 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:07:04,861 INFO L231 Difference]: Finished difference. Result has 289 places, 283 transitions, 571 flow [2024-10-11 17:07:04,861 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=571, PETRI_PLACES=289, PETRI_TRANSITIONS=283} [2024-10-11 17:07:04,862 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -17 predicate places. [2024-10-11 17:07:04,862 INFO L471 AbstractCegarLoop]: Abstraction has has 289 places, 283 transitions, 571 flow [2024-10-11 17:07:04,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 282.0) internal successors, (846), 3 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:04,863 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:04,863 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] [2024-10-11 17:07:04,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:07:04,863 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:07:04,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:04,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1257937337, now seen corresponding path program 1 times [2024-10-11 17:07:04,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:04,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596062245] [2024-10-11 17:07:04,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:04,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:04,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:05,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:05,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:05,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596062245] [2024-10-11 17:07:05,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596062245] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:05,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:05,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:05,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347050398] [2024-10-11 17:07:05,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:05,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:05,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:05,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:05,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:05,679 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 303 [2024-10-11 17:07:05,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 283 transitions, 571 flow. Second operand has 6 states, 6 states have (on average 211.5) internal successors, (1269), 6 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:05,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:05,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 303 [2024-10-11 17:07:05,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:06,019 INFO L124 PetriNetUnfolderBase]: 638/2453 cut-off events. [2024-10-11 17:07:06,019 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:07:06,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3834 conditions, 2453 events. 638/2453 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 15350 event pairs, 638 based on Foata normal form. 0/2306 useless extension candidates. Maximal degree in co-relation 3766. Up to 1370 conditions per place. [2024-10-11 17:07:06,026 INFO L140 encePairwiseOnDemand]: 297/303 looper letters, 93 selfloop transitions, 5 changer transitions 0/282 dead transitions. [2024-10-11 17:07:06,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 282 transitions, 765 flow [2024-10-11 17:07:06,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:06,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:06,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1323 transitions. [2024-10-11 17:07:06,029 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7277227722772277 [2024-10-11 17:07:06,029 INFO L175 Difference]: Start difference. First operand has 289 places, 283 transitions, 571 flow. Second operand 6 states and 1323 transitions. [2024-10-11 17:07:06,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 282 transitions, 765 flow [2024-10-11 17:07:06,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 282 transitions, 764 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:07:06,032 INFO L231 Difference]: Finished difference. Result has 292 places, 282 transitions, 578 flow [2024-10-11 17:07:06,033 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=578, PETRI_PLACES=292, PETRI_TRANSITIONS=282} [2024-10-11 17:07:06,033 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -14 predicate places. [2024-10-11 17:07:06,033 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 282 transitions, 578 flow [2024-10-11 17:07:06,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 211.5) internal successors, (1269), 6 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:06,034 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:06,034 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, 1, 1, 1] [2024-10-11 17:07:06,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 17:07:06,034 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:07:06,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:06,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1020988562, now seen corresponding path program 1 times [2024-10-11 17:07:06,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:06,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430035584] [2024-10-11 17:07:06,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:06,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:06,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:06,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:06,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430035584] [2024-10-11 17:07:06,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430035584] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:06,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:06,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:06,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008681152] [2024-10-11 17:07:06,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:06,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:06,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:06,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:06,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:06,985 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 303 [2024-10-11 17:07:06,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 282 transitions, 578 flow. Second operand has 6 states, 6 states have (on average 239.33333333333334) internal successors, (1436), 6 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:06,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:06,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 303 [2024-10-11 17:07:06,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:07,310 INFO L124 PetriNetUnfolderBase]: 232/1812 cut-off events. [2024-10-11 17:07:07,310 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:07:07,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2378 conditions, 1812 events. 232/1812 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 11411 event pairs, 20 based on Foata normal form. 0/1688 useless extension candidates. Maximal degree in co-relation 2310. Up to 313 conditions per place. [2024-10-11 17:07:07,316 INFO L140 encePairwiseOnDemand]: 284/303 looper letters, 108 selfloop transitions, 38 changer transitions 0/356 dead transitions. [2024-10-11 17:07:07,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 356 transitions, 1018 flow [2024-10-11 17:07:07,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:07,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:07,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1534 transitions. [2024-10-11 17:07:07,318 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8437843784378438 [2024-10-11 17:07:07,319 INFO L175 Difference]: Start difference. First operand has 292 places, 282 transitions, 578 flow. Second operand 6 states and 1534 transitions. [2024-10-11 17:07:07,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 356 transitions, 1018 flow [2024-10-11 17:07:07,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 356 transitions, 1008 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:07:07,324 INFO L231 Difference]: Finished difference. Result has 296 places, 318 transitions, 826 flow [2024-10-11 17:07:07,325 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=826, PETRI_PLACES=296, PETRI_TRANSITIONS=318} [2024-10-11 17:07:07,325 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -10 predicate places. [2024-10-11 17:07:07,325 INFO L471 AbstractCegarLoop]: Abstraction has has 296 places, 318 transitions, 826 flow [2024-10-11 17:07:07,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 239.33333333333334) internal successors, (1436), 6 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:07,326 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:07,326 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:07,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 17:07:07,327 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:07:07,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:07,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1700975626, now seen corresponding path program 1 times [2024-10-11 17:07:07,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:07,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375052513] [2024-10-11 17:07:07,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:07,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:07,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:07,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:07,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:07,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375052513] [2024-10-11 17:07:07,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375052513] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:07,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:07,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:07,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169543028] [2024-10-11 17:07:07,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:07,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:07,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:07,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:07,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:08,170 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 303 [2024-10-11 17:07:08,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 318 transitions, 826 flow. Second operand has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:08,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:08,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 303 [2024-10-11 17:07:08,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:08,366 INFO L124 PetriNetUnfolderBase]: 185/1616 cut-off events. [2024-10-11 17:07:08,366 INFO L125 PetriNetUnfolderBase]: For 202/207 co-relation queries the response was YES. [2024-10-11 17:07:08,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2396 conditions, 1616 events. 185/1616 cut-off events. For 202/207 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9995 event pairs, 75 based on Foata normal form. 0/1496 useless extension candidates. Maximal degree in co-relation 2326. Up to 362 conditions per place. [2024-10-11 17:07:08,372 INFO L140 encePairwiseOnDemand]: 297/303 looper letters, 104 selfloop transitions, 5 changer transitions 0/333 dead transitions. [2024-10-11 17:07:08,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 333 transitions, 1074 flow [2024-10-11 17:07:08,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:08,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:08,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1504 transitions. [2024-10-11 17:07:08,375 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8272827282728272 [2024-10-11 17:07:08,375 INFO L175 Difference]: Start difference. First operand has 296 places, 318 transitions, 826 flow. Second operand 6 states and 1504 transitions. [2024-10-11 17:07:08,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 333 transitions, 1074 flow [2024-10-11 17:07:08,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 333 transitions, 1074 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:07:08,380 INFO L231 Difference]: Finished difference. Result has 300 places, 317 transitions, 834 flow [2024-10-11 17:07:08,381 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=834, PETRI_PLACES=300, PETRI_TRANSITIONS=317} [2024-10-11 17:07:08,381 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -6 predicate places. [2024-10-11 17:07:08,381 INFO L471 AbstractCegarLoop]: Abstraction has has 300 places, 317 transitions, 834 flow [2024-10-11 17:07:08,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:08,382 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:08,382 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:08,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 17:07:08,383 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:07:08,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:08,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1294831474, now seen corresponding path program 1 times [2024-10-11 17:07:08,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:08,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738053980] [2024-10-11 17:07:08,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:08,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:08,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:08,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:08,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:08,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738053980] [2024-10-11 17:07:08,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738053980] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:08,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:08,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:08,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599856979] [2024-10-11 17:07:08,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:08,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:08,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:08,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:08,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:09,153 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 303 [2024-10-11 17:07:09,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 317 transitions, 834 flow. Second operand has 6 states, 6 states have (on average 236.5) internal successors, (1419), 6 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:09,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:09,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 303 [2024-10-11 17:07:09,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:09,471 INFO L124 PetriNetUnfolderBase]: 583/2973 cut-off events. [2024-10-11 17:07:09,471 INFO L125 PetriNetUnfolderBase]: For 700/707 co-relation queries the response was YES. [2024-10-11 17:07:09,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5060 conditions, 2973 events. 583/2973 cut-off events. For 700/707 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 21810 event pairs, 69 based on Foata normal form. 0/2786 useless extension candidates. Maximal degree in co-relation 4987. Up to 804 conditions per place. [2024-10-11 17:07:09,482 INFO L140 encePairwiseOnDemand]: 281/303 looper letters, 120 selfloop transitions, 72 changer transitions 0/406 dead transitions. [2024-10-11 17:07:09,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 406 transitions, 1588 flow [2024-10-11 17:07:09,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:09,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:09,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1506 transitions. [2024-10-11 17:07:09,484 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8283828382838284 [2024-10-11 17:07:09,484 INFO L175 Difference]: Start difference. First operand has 300 places, 317 transitions, 834 flow. Second operand 6 states and 1506 transitions. [2024-10-11 17:07:09,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 406 transitions, 1588 flow [2024-10-11 17:07:09,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 406 transitions, 1570 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:07:09,490 INFO L231 Difference]: Finished difference. Result has 305 places, 387 transitions, 1490 flow [2024-10-11 17:07:09,491 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1490, PETRI_PLACES=305, PETRI_TRANSITIONS=387} [2024-10-11 17:07:09,491 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -1 predicate places. [2024-10-11 17:07:09,491 INFO L471 AbstractCegarLoop]: Abstraction has has 305 places, 387 transitions, 1490 flow [2024-10-11 17:07:09,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 236.5) internal successors, (1419), 6 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:09,492 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:09,492 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:09,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 17:07:09,492 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:07:09,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:09,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1841072123, now seen corresponding path program 1 times [2024-10-11 17:07:09,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:09,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379740546] [2024-10-11 17:07:09,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:09,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:09,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:09,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:09,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:09,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379740546] [2024-10-11 17:07:09,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379740546] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:09,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:09,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:09,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096910558] [2024-10-11 17:07:09,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:09,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:09,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:09,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:09,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:10,172 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 303 [2024-10-11 17:07:10,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 387 transitions, 1490 flow. Second operand has 6 states, 6 states have (on average 216.66666666666666) internal successors, (1300), 6 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:10,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:10,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 303 [2024-10-11 17:07:10,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:10,956 INFO L124 PetriNetUnfolderBase]: 1657/5720 cut-off events. [2024-10-11 17:07:10,956 INFO L125 PetriNetUnfolderBase]: For 3354/3414 co-relation queries the response was YES. [2024-10-11 17:07:10,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12817 conditions, 5720 events. 1657/5720 cut-off events. For 3354/3414 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 45961 event pairs, 861 based on Foata normal form. 0/5391 useless extension candidates. Maximal degree in co-relation 12742. Up to 3155 conditions per place. [2024-10-11 17:07:10,982 INFO L140 encePairwiseOnDemand]: 280/303 looper letters, 209 selfloop transitions, 89 changer transitions 0/487 dead transitions. [2024-10-11 17:07:10,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 487 transitions, 2490 flow [2024-10-11 17:07:10,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:10,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:10,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1424 transitions. [2024-10-11 17:07:10,986 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7832783278327833 [2024-10-11 17:07:10,986 INFO L175 Difference]: Start difference. First operand has 305 places, 387 transitions, 1490 flow. Second operand 6 states and 1424 transitions. [2024-10-11 17:07:10,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 487 transitions, 2490 flow [2024-10-11 17:07:10,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 487 transitions, 2490 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:07:10,999 INFO L231 Difference]: Finished difference. Result has 315 places, 471 transitions, 2292 flow [2024-10-11 17:07:11,000 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=1490, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2292, PETRI_PLACES=315, PETRI_TRANSITIONS=471} [2024-10-11 17:07:11,000 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 9 predicate places. [2024-10-11 17:07:11,000 INFO L471 AbstractCegarLoop]: Abstraction has has 315 places, 471 transitions, 2292 flow [2024-10-11 17:07:11,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 216.66666666666666) internal successors, (1300), 6 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:11,001 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:11,001 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:11,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 17:07:11,001 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:07:11,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:11,002 INFO L85 PathProgramCache]: Analyzing trace with hash -2009852660, now seen corresponding path program 1 times [2024-10-11 17:07:11,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:11,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960773941] [2024-10-11 17:07:11,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:11,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:11,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:11,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:11,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960773941] [2024-10-11 17:07:11,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960773941] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:11,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:11,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:07:11,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27867656] [2024-10-11 17:07:11,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:11,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:07:11,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:11,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:07:11,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:07:11,143 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 303 [2024-10-11 17:07:11,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 471 transitions, 2292 flow. Second operand has 3 states, 3 states have (on average 294.3333333333333) internal successors, (883), 3 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:11,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:11,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 303 [2024-10-11 17:07:11,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:11,326 INFO L124 PetriNetUnfolderBase]: 309/1986 cut-off events. [2024-10-11 17:07:11,327 INFO L125 PetriNetUnfolderBase]: For 1179/1248 co-relation queries the response was YES. [2024-10-11 17:07:11,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4121 conditions, 1986 events. 309/1986 cut-off events. For 1179/1248 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 13329 event pairs, 31 based on Foata normal form. 4/1914 useless extension candidates. Maximal degree in co-relation 4048. Up to 312 conditions per place. [2024-10-11 17:07:11,338 INFO L140 encePairwiseOnDemand]: 297/303 looper letters, 10 selfloop transitions, 6 changer transitions 0/411 dead transitions. [2024-10-11 17:07:11,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 411 transitions, 1760 flow [2024-10-11 17:07:11,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:07:11,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:07:11,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 897 transitions. [2024-10-11 17:07:11,340 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9867986798679867 [2024-10-11 17:07:11,340 INFO L175 Difference]: Start difference. First operand has 315 places, 471 transitions, 2292 flow. Second operand 3 states and 897 transitions. [2024-10-11 17:07:11,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 411 transitions, 1760 flow [2024-10-11 17:07:11,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 411 transitions, 1672 flow, removed 44 selfloop flow, removed 0 redundant places. [2024-10-11 17:07:11,352 INFO L231 Difference]: Finished difference. Result has 318 places, 409 transitions, 1662 flow [2024-10-11 17:07:11,352 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=1628, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1662, PETRI_PLACES=318, PETRI_TRANSITIONS=409} [2024-10-11 17:07:11,353 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 12 predicate places. [2024-10-11 17:07:11,354 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 409 transitions, 1662 flow [2024-10-11 17:07:11,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 294.3333333333333) internal successors, (883), 3 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:11,354 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:11,354 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:11,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 17:07:11,354 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:07:11,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:11,355 INFO L85 PathProgramCache]: Analyzing trace with hash 184465762, now seen corresponding path program 1 times [2024-10-11 17:07:11,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:11,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545610392] [2024-10-11 17:07:11,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:11,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:11,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:11,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:11,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545610392] [2024-10-11 17:07:11,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545610392] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:11,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:11,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:11,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557685126] [2024-10-11 17:07:11,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:11,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:11,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:11,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:11,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:12,207 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 303 [2024-10-11 17:07:12,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 409 transitions, 1662 flow. Second operand has 6 states, 6 states have (on average 239.66666666666666) internal successors, (1438), 6 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:12,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:12,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 303 [2024-10-11 17:07:12,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:12,608 INFO L124 PetriNetUnfolderBase]: 690/3138 cut-off events. [2024-10-11 17:07:12,608 INFO L125 PetriNetUnfolderBase]: For 3013/3231 co-relation queries the response was YES. [2024-10-11 17:07:12,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7473 conditions, 3138 events. 690/3138 cut-off events. For 3013/3231 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 23958 event pairs, 54 based on Foata normal form. 20/3047 useless extension candidates. Maximal degree in co-relation 7390. Up to 742 conditions per place. [2024-10-11 17:07:12,621 INFO L140 encePairwiseOnDemand]: 284/303 looper letters, 192 selfloop transitions, 124 changer transitions 4/567 dead transitions. [2024-10-11 17:07:12,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 567 transitions, 3269 flow [2024-10-11 17:07:12,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:12,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:12,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1552 transitions. [2024-10-11 17:07:12,624 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8536853685368537 [2024-10-11 17:07:12,624 INFO L175 Difference]: Start difference. First operand has 318 places, 409 transitions, 1662 flow. Second operand 6 states and 1552 transitions. [2024-10-11 17:07:12,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 567 transitions, 3269 flow [2024-10-11 17:07:12,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 567 transitions, 3246 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:07:12,636 INFO L231 Difference]: Finished difference. Result has 326 places, 511 transitions, 3038 flow [2024-10-11 17:07:12,637 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=1654, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3038, PETRI_PLACES=326, PETRI_TRANSITIONS=511} [2024-10-11 17:07:12,637 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 20 predicate places. [2024-10-11 17:07:12,637 INFO L471 AbstractCegarLoop]: Abstraction has has 326 places, 511 transitions, 3038 flow [2024-10-11 17:07:12,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 239.66666666666666) internal successors, (1438), 6 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:12,638 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:12,638 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:12,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 17:07:12,638 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:07:12,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:12,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1328841865, now seen corresponding path program 1 times [2024-10-11 17:07:12,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:12,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976083358] [2024-10-11 17:07:12,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:12,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:13,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:13,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:13,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976083358] [2024-10-11 17:07:13,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976083358] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:13,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:13,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:13,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292807589] [2024-10-11 17:07:13,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:13,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:13,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:13,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:13,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:13,705 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 303 [2024-10-11 17:07:13,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 511 transitions, 3038 flow. Second operand has 6 states, 6 states have (on average 246.0) internal successors, (1476), 6 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:13,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:13,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 303 [2024-10-11 17:07:13,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:14,187 INFO L124 PetriNetUnfolderBase]: 605/2915 cut-off events. [2024-10-11 17:07:14,187 INFO L125 PetriNetUnfolderBase]: For 5617/5790 co-relation queries the response was YES. [2024-10-11 17:07:14,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7856 conditions, 2915 events. 605/2915 cut-off events. For 5617/5790 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 21873 event pairs, 92 based on Foata normal form. 18/2877 useless extension candidates. Maximal degree in co-relation 7770. Up to 811 conditions per place. [2024-10-11 17:07:14,206 INFO L140 encePairwiseOnDemand]: 297/303 looper letters, 226 selfloop transitions, 17 changer transitions 0/526 dead transitions. [2024-10-11 17:07:14,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 526 transitions, 3578 flow [2024-10-11 17:07:14,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:14,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:14,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1504 transitions. [2024-10-11 17:07:14,210 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8272827282728272 [2024-10-11 17:07:14,210 INFO L175 Difference]: Start difference. First operand has 326 places, 511 transitions, 3038 flow. Second operand 6 states and 1504 transitions. [2024-10-11 17:07:14,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 526 transitions, 3578 flow [2024-10-11 17:07:14,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 526 transitions, 3560 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-11 17:07:14,237 INFO L231 Difference]: Finished difference. Result has 330 places, 510 transitions, 3052 flow [2024-10-11 17:07:14,238 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=3018, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=493, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3052, PETRI_PLACES=330, PETRI_TRANSITIONS=510} [2024-10-11 17:07:14,239 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 24 predicate places. [2024-10-11 17:07:14,239 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 510 transitions, 3052 flow [2024-10-11 17:07:14,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 246.0) internal successors, (1476), 6 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:14,240 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:14,240 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:14,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 17:07:14,240 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:07:14,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:14,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1396133518, now seen corresponding path program 1 times [2024-10-11 17:07:14,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:14,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74715929] [2024-10-11 17:07:14,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:14,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:14,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:14,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:14,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74715929] [2024-10-11 17:07:14,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74715929] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:14,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:14,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:07:14,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238552466] [2024-10-11 17:07:14,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:14,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:07:14,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:14,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:07:14,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:07:14,987 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 303 [2024-10-11 17:07:14,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 510 transitions, 3052 flow. Second operand has 6 states, 6 states have (on average 219.0) internal successors, (1314), 6 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:14,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:14,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 303 [2024-10-11 17:07:14,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:15,772 INFO L124 PetriNetUnfolderBase]: 1547/5186 cut-off events. [2024-10-11 17:07:15,772 INFO L125 PetriNetUnfolderBase]: For 7490/7571 co-relation queries the response was YES. [2024-10-11 17:07:15,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15171 conditions, 5186 events. 1547/5186 cut-off events. For 7490/7571 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 41346 event pairs, 582 based on Foata normal form. 1/5034 useless extension candidates. Maximal degree in co-relation 15084. Up to 2889 conditions per place. [2024-10-11 17:07:15,803 INFO L140 encePairwiseOnDemand]: 280/303 looper letters, 312 selfloop transitions, 103 changer transitions 8/616 dead transitions. [2024-10-11 17:07:15,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 616 transitions, 4508 flow [2024-10-11 17:07:15,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:07:15,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:07:15,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1424 transitions. [2024-10-11 17:07:15,808 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7832783278327833 [2024-10-11 17:07:15,808 INFO L175 Difference]: Start difference. First operand has 330 places, 510 transitions, 3052 flow. Second operand 6 states and 1424 transitions. [2024-10-11 17:07:15,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 616 transitions, 4508 flow [2024-10-11 17:07:15,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 616 transitions, 4474 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:07:15,835 INFO L231 Difference]: Finished difference. Result has 335 places, 596 transitions, 4036 flow [2024-10-11 17:07:15,835 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=3018, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4036, PETRI_PLACES=335, PETRI_TRANSITIONS=596} [2024-10-11 17:07:15,836 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 29 predicate places. [2024-10-11 17:07:15,836 INFO L471 AbstractCegarLoop]: Abstraction has has 335 places, 596 transitions, 4036 flow [2024-10-11 17:07:15,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.0) internal successors, (1314), 6 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:15,836 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:15,837 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:15,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 17:07:15,837 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:07:15,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:15,837 INFO L85 PathProgramCache]: Analyzing trace with hash 72147898, now seen corresponding path program 1 times [2024-10-11 17:07:15,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:15,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927775610] [2024-10-11 17:07:15,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:15,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:17,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:17,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:17,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927775610] [2024-10-11 17:07:17,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927775610] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:17,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:17,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-10-11 17:07:17,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77801226] [2024-10-11 17:07:17,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:17,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-11 17:07:17,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:17,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-11 17:07:17,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=473, Unknown=0, NotChecked=0, Total=552 [2024-10-11 17:07:20,327 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 303 [2024-10-11 17:07:20,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 596 transitions, 4036 flow. Second operand has 24 states, 24 states have (on average 160.04166666666666) internal successors, (3841), 24 states have internal predecessors, (3841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:20,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:20,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 303 [2024-10-11 17:07:20,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:22,441 INFO L124 PetriNetUnfolderBase]: 1733/5599 cut-off events. [2024-10-11 17:07:22,441 INFO L125 PetriNetUnfolderBase]: For 11190/11272 co-relation queries the response was YES. [2024-10-11 17:07:22,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18568 conditions, 5599 events. 1733/5599 cut-off events. For 11190/11272 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 45023 event pairs, 507 based on Foata normal form. 14/5545 useless extension candidates. Maximal degree in co-relation 18461. Up to 2210 conditions per place. [2024-10-11 17:07:22,464 INFO L140 encePairwiseOnDemand]: 265/303 looper letters, 531 selfloop transitions, 110 changer transitions 30/810 dead transitions. [2024-10-11 17:07:22,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 810 transitions, 6968 flow [2024-10-11 17:07:22,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-11 17:07:22,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2024-10-11 17:07:22,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 5731 transitions. [2024-10-11 17:07:22,474 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5404054691183404 [2024-10-11 17:07:22,474 INFO L175 Difference]: Start difference. First operand has 335 places, 596 transitions, 4036 flow. Second operand 35 states and 5731 transitions. [2024-10-11 17:07:22,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 810 transitions, 6968 flow [2024-10-11 17:07:22,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 810 transitions, 6764 flow, removed 102 selfloop flow, removed 0 redundant places. [2024-10-11 17:07:22,513 INFO L231 Difference]: Finished difference. Result has 379 places, 628 transitions, 4474 flow [2024-10-11 17:07:22,513 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=3888, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=596, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=4474, PETRI_PLACES=379, PETRI_TRANSITIONS=628} [2024-10-11 17:07:22,514 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 73 predicate places. [2024-10-11 17:07:22,514 INFO L471 AbstractCegarLoop]: Abstraction has has 379 places, 628 transitions, 4474 flow [2024-10-11 17:07:22,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 160.04166666666666) internal successors, (3841), 24 states have internal predecessors, (3841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:22,515 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:22,515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:22,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 17:07:22,516 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:07:22,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:22,516 INFO L85 PathProgramCache]: Analyzing trace with hash 193562789, now seen corresponding path program 1 times [2024-10-11 17:07:22,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:22,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106993389] [2024-10-11 17:07:22,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:22,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:23,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:23,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:23,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106993389] [2024-10-11 17:07:23,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106993389] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:23,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:23,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-10-11 17:07:23,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246399909] [2024-10-11 17:07:23,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:23,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 17:07:23,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:23,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 17:07:23,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2024-10-11 17:07:28,454 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 303 [2024-10-11 17:07:28,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 628 transitions, 4474 flow. Second operand has 23 states, 23 states have (on average 185.47826086956522) internal successors, (4266), 23 states have internal predecessors, (4266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:28,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:28,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 303 [2024-10-11 17:07:28,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:30,017 INFO L124 PetriNetUnfolderBase]: 1401/5264 cut-off events. [2024-10-11 17:07:30,017 INFO L125 PetriNetUnfolderBase]: For 13169/13328 co-relation queries the response was YES. [2024-10-11 17:07:30,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17741 conditions, 5264 events. 1401/5264 cut-off events. For 13169/13328 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 44595 event pairs, 197 based on Foata normal form. 27/5224 useless extension candidates. Maximal degree in co-relation 17617. Up to 1530 conditions per place. [2024-10-11 17:07:30,046 INFO L140 encePairwiseOnDemand]: 263/303 looper letters, 389 selfloop transitions, 125 changer transitions 7/771 dead transitions. [2024-10-11 17:07:30,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 771 transitions, 6739 flow [2024-10-11 17:07:30,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-11 17:07:30,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-10-11 17:07:30,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 5079 transitions. [2024-10-11 17:07:30,052 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6208287495416208 [2024-10-11 17:07:30,053 INFO L175 Difference]: Start difference. First operand has 379 places, 628 transitions, 4474 flow. Second operand 27 states and 5079 transitions. [2024-10-11 17:07:30,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 771 transitions, 6739 flow [2024-10-11 17:07:30,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 771 transitions, 6611 flow, removed 48 selfloop flow, removed 14 redundant places. [2024-10-11 17:07:30,095 INFO L231 Difference]: Finished difference. Result has 399 places, 687 transitions, 5592 flow [2024-10-11 17:07:30,095 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=4382, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=628, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=509, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=5592, PETRI_PLACES=399, PETRI_TRANSITIONS=687} [2024-10-11 17:07:30,096 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 93 predicate places. [2024-10-11 17:07:30,096 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 687 transitions, 5592 flow [2024-10-11 17:07:30,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 185.47826086956522) internal successors, (4266), 23 states have internal predecessors, (4266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:30,098 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:30,098 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:30,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 17:07:30,098 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:07:30,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:30,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1087645431, now seen corresponding path program 2 times [2024-10-11 17:07:30,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:30,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208412470] [2024-10-11 17:07:30,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:30,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:31,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:31,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:31,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208412470] [2024-10-11 17:07:31,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208412470] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:31,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:31,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-10-11 17:07:31,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927731603] [2024-10-11 17:07:31,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:31,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 17:07:31,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:31,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 17:07:31,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2024-10-11 17:07:35,088 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 303 [2024-10-11 17:07:35,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 687 transitions, 5592 flow. Second operand has 23 states, 23 states have (on average 185.47826086956522) internal successors, (4266), 23 states have internal predecessors, (4266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:35,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:35,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 303 [2024-10-11 17:07:35,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:36,690 INFO L124 PetriNetUnfolderBase]: 1459/5384 cut-off events. [2024-10-11 17:07:36,691 INFO L125 PetriNetUnfolderBase]: For 17379/17557 co-relation queries the response was YES. [2024-10-11 17:07:36,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19356 conditions, 5384 events. 1459/5384 cut-off events. For 17379/17557 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 45296 event pairs, 191 based on Foata normal form. 58/5375 useless extension candidates. Maximal degree in co-relation 19222. Up to 1137 conditions per place. [2024-10-11 17:07:36,727 INFO L140 encePairwiseOnDemand]: 267/303 looper letters, 412 selfloop transitions, 153 changer transitions 8/823 dead transitions. [2024-10-11 17:07:36,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 823 transitions, 7880 flow [2024-10-11 17:07:36,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-10-11 17:07:36,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2024-10-11 17:07:36,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 6187 transitions. [2024-10-11 17:07:36,732 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6187618761876188 [2024-10-11 17:07:36,732 INFO L175 Difference]: Start difference. First operand has 399 places, 687 transitions, 5592 flow. Second operand 33 states and 6187 transitions. [2024-10-11 17:07:36,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 823 transitions, 7880 flow [2024-10-11 17:07:36,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 823 transitions, 7797 flow, removed 20 selfloop flow, removed 17 redundant places. [2024-10-11 17:07:36,806 INFO L231 Difference]: Finished difference. Result has 425 places, 742 transitions, 6615 flow [2024-10-11 17:07:36,807 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=5535, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=556, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=6615, PETRI_PLACES=425, PETRI_TRANSITIONS=742} [2024-10-11 17:07:36,807 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 119 predicate places. [2024-10-11 17:07:36,807 INFO L471 AbstractCegarLoop]: Abstraction has has 425 places, 742 transitions, 6615 flow [2024-10-11 17:07:36,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 185.47826086956522) internal successors, (4266), 23 states have internal predecessors, (4266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:36,808 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:36,808 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:36,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 17:07:36,809 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:07:36,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:36,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1128305695, now seen corresponding path program 3 times [2024-10-11 17:07:36,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:36,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301015365] [2024-10-11 17:07:36,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:36,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:38,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:38,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:38,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301015365] [2024-10-11 17:07:38,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301015365] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:38,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:38,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-10-11 17:07:38,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723827848] [2024-10-11 17:07:38,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:38,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 17:07:38,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:38,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 17:07:38,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2024-10-11 17:07:43,433 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 303 [2024-10-11 17:07:43,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 742 transitions, 6615 flow. Second operand has 23 states, 23 states have (on average 185.47826086956522) internal successors, (4266), 23 states have internal predecessors, (4266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:43,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:43,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 303 [2024-10-11 17:07:43,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:45,622 INFO L124 PetriNetUnfolderBase]: 1684/6158 cut-off events. [2024-10-11 17:07:45,626 INFO L125 PetriNetUnfolderBase]: For 26693/26994 co-relation queries the response was YES. [2024-10-11 17:07:45,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23685 conditions, 6158 events. 1684/6158 cut-off events. For 26693/26994 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 54271 event pairs, 224 based on Foata normal form. 95/6174 useless extension candidates. Maximal degree in co-relation 23539. Up to 1607 conditions per place. [2024-10-11 17:07:45,710 INFO L140 encePairwiseOnDemand]: 263/303 looper letters, 473 selfloop transitions, 163 changer transitions 7/893 dead transitions. [2024-10-11 17:07:45,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 893 transitions, 9498 flow [2024-10-11 17:07:45,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-11 17:07:45,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2024-10-11 17:07:45,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 5449 transitions. [2024-10-11 17:07:45,714 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6201206327529305 [2024-10-11 17:07:45,718 INFO L175 Difference]: Start difference. First operand has 425 places, 742 transitions, 6615 flow. Second operand 29 states and 5449 transitions. [2024-10-11 17:07:45,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 893 transitions, 9498 flow [2024-10-11 17:07:45,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 893 transitions, 9415 flow, removed 19 selfloop flow, removed 18 redundant places. [2024-10-11 17:07:45,936 INFO L231 Difference]: Finished difference. Result has 440 places, 803 transitions, 8137 flow [2024-10-11 17:07:45,940 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=6534, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=742, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=585, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=8137, PETRI_PLACES=440, PETRI_TRANSITIONS=803} [2024-10-11 17:07:45,940 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 134 predicate places. [2024-10-11 17:07:45,940 INFO L471 AbstractCegarLoop]: Abstraction has has 440 places, 803 transitions, 8137 flow [2024-10-11 17:07:45,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 185.47826086956522) internal successors, (4266), 23 states have internal predecessors, (4266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:45,945 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:45,945 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:45,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 17:07:45,949 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:07:45,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:45,950 INFO L85 PathProgramCache]: Analyzing trace with hash -969128125, now seen corresponding path program 4 times [2024-10-11 17:07:45,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:45,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254760136] [2024-10-11 17:07:45,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:45,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:47,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:47,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:47,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254760136] [2024-10-11 17:07:47,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254760136] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:47,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:47,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-10-11 17:07:47,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940032695] [2024-10-11 17:07:47,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:47,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 17:07:47,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:47,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 17:07:47,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2024-10-11 17:07:52,125 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 303 [2024-10-11 17:07:52,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 803 transitions, 8137 flow. Second operand has 23 states, 23 states have (on average 185.47826086956522) internal successors, (4266), 23 states have internal predecessors, (4266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:52,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:07:52,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 303 [2024-10-11 17:07:52,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:07:54,113 INFO L124 PetriNetUnfolderBase]: 1926/6932 cut-off events. [2024-10-11 17:07:54,113 INFO L125 PetriNetUnfolderBase]: For 39482/39847 co-relation queries the response was YES. [2024-10-11 17:07:54,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28194 conditions, 6932 events. 1926/6932 cut-off events. For 39482/39847 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 63280 event pairs, 249 based on Foata normal form. 86/6930 useless extension candidates. Maximal degree in co-relation 28042. Up to 1554 conditions per place. [2024-10-11 17:07:54,178 INFO L140 encePairwiseOnDemand]: 263/303 looper letters, 527 selfloop transitions, 211 changer transitions 7/995 dead transitions. [2024-10-11 17:07:54,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 995 transitions, 12036 flow [2024-10-11 17:07:54,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-11 17:07:54,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-10-11 17:07:54,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 5828 transitions. [2024-10-11 17:07:54,182 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6204620462046204 [2024-10-11 17:07:54,182 INFO L175 Difference]: Start difference. First operand has 440 places, 803 transitions, 8137 flow. Second operand 31 states and 5828 transitions. [2024-10-11 17:07:54,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 995 transitions, 12036 flow [2024-10-11 17:07:54,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 995 transitions, 11939 flow, removed 10 selfloop flow, removed 21 redundant places. [2024-10-11 17:07:54,313 INFO L231 Difference]: Finished difference. Result has 459 places, 882 transitions, 10307 flow [2024-10-11 17:07:54,314 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=8050, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=803, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=604, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=10307, PETRI_PLACES=459, PETRI_TRANSITIONS=882} [2024-10-11 17:07:54,314 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 153 predicate places. [2024-10-11 17:07:54,314 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 882 transitions, 10307 flow [2024-10-11 17:07:54,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 185.47826086956522) internal successors, (4266), 23 states have internal predecessors, (4266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:07:54,315 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:07:54,315 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:07:54,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 17:07:54,316 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:07:54,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:07:54,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1080978813, now seen corresponding path program 5 times [2024-10-11 17:07:54,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:07:54,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981293129] [2024-10-11 17:07:54,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:07:54,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:07:54,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:07:55,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:07:55,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:07:55,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981293129] [2024-10-11 17:07:55,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981293129] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:07:55,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:07:55,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-10-11 17:07:55,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401928917] [2024-10-11 17:07:55,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:07:55,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 17:07:55,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:07:55,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 17:07:55,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-10-11 17:08:00,870 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 303 [2024-10-11 17:08:00,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 882 transitions, 10307 flow. Second operand has 23 states, 23 states have (on average 185.47826086956522) internal successors, (4266), 23 states have internal predecessors, (4266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:00,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:00,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 303 [2024-10-11 17:08:00,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:03,140 INFO L124 PetriNetUnfolderBase]: 2128/7657 cut-off events. [2024-10-11 17:08:03,141 INFO L125 PetriNetUnfolderBase]: For 56099/56535 co-relation queries the response was YES. [2024-10-11 17:08:03,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32696 conditions, 7657 events. 2128/7657 cut-off events. For 56099/56535 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 72274 event pairs, 272 based on Foata normal form. 108/7668 useless extension candidates. Maximal degree in co-relation 32533. Up to 1886 conditions per place. [2024-10-11 17:08:03,208 INFO L140 encePairwiseOnDemand]: 263/303 looper letters, 538 selfloop transitions, 248 changer transitions 7/1043 dead transitions. [2024-10-11 17:08:03,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 1043 transitions, 14067 flow [2024-10-11 17:08:03,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-11 17:08:03,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-11 17:08:03,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5639 transitions. [2024-10-11 17:08:03,212 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6203520352035203 [2024-10-11 17:08:03,212 INFO L175 Difference]: Start difference. First operand has 459 places, 882 transitions, 10307 flow. Second operand 30 states and 5639 transitions. [2024-10-11 17:08:03,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 1043 transitions, 14067 flow [2024-10-11 17:08:03,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 1043 transitions, 13944 flow, removed 38 selfloop flow, removed 18 redundant places. [2024-10-11 17:08:03,420 INFO L231 Difference]: Finished difference. Result has 478 places, 941 transitions, 12461 flow [2024-10-11 17:08:03,421 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=10184, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=882, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=190, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=639, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=12461, PETRI_PLACES=478, PETRI_TRANSITIONS=941} [2024-10-11 17:08:03,421 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 172 predicate places. [2024-10-11 17:08:03,421 INFO L471 AbstractCegarLoop]: Abstraction has has 478 places, 941 transitions, 12461 flow [2024-10-11 17:08:03,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 185.47826086956522) internal successors, (4266), 23 states have internal predecessors, (4266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:03,423 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:03,423 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:03,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 17:08:03,423 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:08:03,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:03,423 INFO L85 PathProgramCache]: Analyzing trace with hash -843616089, now seen corresponding path program 1 times [2024-10-11 17:08:03,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:03,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846123930] [2024-10-11 17:08:03,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:03,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:04,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:04,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:04,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846123930] [2024-10-11 17:08:04,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846123930] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:04,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:04,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-10-11 17:08:04,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711082815] [2024-10-11 17:08:04,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:04,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-11 17:08:04,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:04,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-11 17:08:04,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2024-10-11 17:08:08,434 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 303 [2024-10-11 17:08:08,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 941 transitions, 12461 flow. Second operand has 25 states, 25 states have (on average 183.36) internal successors, (4584), 25 states have internal predecessors, (4584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:08,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:08,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 303 [2024-10-11 17:08:08,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:11,388 INFO L124 PetriNetUnfolderBase]: 2187/7786 cut-off events. [2024-10-11 17:08:11,388 INFO L125 PetriNetUnfolderBase]: For 71411/71844 co-relation queries the response was YES. [2024-10-11 17:08:11,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34817 conditions, 7786 events. 2187/7786 cut-off events. For 71411/71844 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 73476 event pairs, 311 based on Foata normal form. 111/7801 useless extension candidates. Maximal degree in co-relation 34645. Up to 1183 conditions per place. [2024-10-11 17:08:11,451 INFO L140 encePairwiseOnDemand]: 263/303 looper letters, 620 selfloop transitions, 247 changer transitions 12/1125 dead transitions. [2024-10-11 17:08:11,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 1125 transitions, 16118 flow [2024-10-11 17:08:11,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-10-11 17:08:11,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2024-10-11 17:08:11,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 7616 transitions. [2024-10-11 17:08:11,456 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6130564275939789 [2024-10-11 17:08:11,456 INFO L175 Difference]: Start difference. First operand has 478 places, 941 transitions, 12461 flow. Second operand 41 states and 7616 transitions. [2024-10-11 17:08:11,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 1125 transitions, 16118 flow [2024-10-11 17:08:11,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 1125 transitions, 15984 flow, removed 40 selfloop flow, removed 19 redundant places. [2024-10-11 17:08:11,677 INFO L231 Difference]: Finished difference. Result has 502 places, 961 transitions, 13455 flow [2024-10-11 17:08:11,677 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=12327, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=941, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=705, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=13455, PETRI_PLACES=502, PETRI_TRANSITIONS=961} [2024-10-11 17:08:11,678 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 196 predicate places. [2024-10-11 17:08:11,678 INFO L471 AbstractCegarLoop]: Abstraction has has 502 places, 961 transitions, 13455 flow [2024-10-11 17:08:11,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 183.36) internal successors, (4584), 25 states have internal predecessors, (4584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:11,679 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:11,679 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:11,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 17:08:11,679 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:08:11,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:11,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1662500267, now seen corresponding path program 2 times [2024-10-11 17:08:11,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:11,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366133054] [2024-10-11 17:08:11,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:11,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:12,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:12,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:12,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366133054] [2024-10-11 17:08:12,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366133054] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:12,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:12,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-10-11 17:08:12,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475410257] [2024-10-11 17:08:12,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:12,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 17:08:12,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:12,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 17:08:12,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-10-11 17:08:16,821 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 303 [2024-10-11 17:08:16,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 961 transitions, 13455 flow. Second operand has 23 states, 23 states have (on average 185.65217391304347) internal successors, (4270), 23 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:16,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:16,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 303 [2024-10-11 17:08:16,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:19,366 INFO L124 PetriNetUnfolderBase]: 2185/7784 cut-off events. [2024-10-11 17:08:19,366 INFO L125 PetriNetUnfolderBase]: For 81186/81622 co-relation queries the response was YES. [2024-10-11 17:08:19,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36073 conditions, 7784 events. 2185/7784 cut-off events. For 81186/81622 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 73609 event pairs, 293 based on Foata normal form. 89/7777 useless extension candidates. Maximal degree in co-relation 35897. Up to 1207 conditions per place. [2024-10-11 17:08:19,428 INFO L140 encePairwiseOnDemand]: 265/303 looper letters, 560 selfloop transitions, 242 changer transitions 8/1060 dead transitions. [2024-10-11 17:08:19,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 536 places, 1060 transitions, 16056 flow [2024-10-11 17:08:19,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-11 17:08:19,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2024-10-11 17:08:19,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 6561 transitions. [2024-10-11 17:08:19,433 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6186704384724186 [2024-10-11 17:08:19,433 INFO L175 Difference]: Start difference. First operand has 502 places, 961 transitions, 13455 flow. Second operand 35 states and 6561 transitions. [2024-10-11 17:08:19,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 536 places, 1060 transitions, 16056 flow [2024-10-11 17:08:19,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 1060 transitions, 15734 flow, removed 29 selfloop flow, removed 34 redundant places. [2024-10-11 17:08:19,670 INFO L231 Difference]: Finished difference. Result has 506 places, 973 transitions, 14137 flow [2024-10-11 17:08:19,671 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=13133, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=961, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=719, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=14137, PETRI_PLACES=506, PETRI_TRANSITIONS=973} [2024-10-11 17:08:19,671 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 200 predicate places. [2024-10-11 17:08:19,671 INFO L471 AbstractCegarLoop]: Abstraction has has 506 places, 973 transitions, 14137 flow [2024-10-11 17:08:19,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 185.65217391304347) internal successors, (4270), 23 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:19,672 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:19,672 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:19,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-11 17:08:19,672 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:08:19,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:19,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1342651945, now seen corresponding path program 3 times [2024-10-11 17:08:19,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:19,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455117744] [2024-10-11 17:08:19,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:19,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:08:20,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:08:20,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:08:20,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455117744] [2024-10-11 17:08:20,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455117744] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:08:20,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:08:20,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-10-11 17:08:20,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29930777] [2024-10-11 17:08:20,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:08:20,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-11 17:08:20,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:08:20,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-11 17:08:20,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2024-10-11 17:08:24,512 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 303 [2024-10-11 17:08:24,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 973 transitions, 14137 flow. Second operand has 25 states, 25 states have (on average 183.4) internal successors, (4585), 25 states have internal predecessors, (4585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:24,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:08:24,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 303 [2024-10-11 17:08:24,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:08:27,998 INFO L124 PetriNetUnfolderBase]: 2219/7774 cut-off events. [2024-10-11 17:08:27,998 INFO L125 PetriNetUnfolderBase]: For 93149/93570 co-relation queries the response was YES. [2024-10-11 17:08:28,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37172 conditions, 7774 events. 2219/7774 cut-off events. For 93149/93570 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 73212 event pairs, 232 based on Foata normal form. 128/7810 useless extension candidates. Maximal degree in co-relation 36991. Up to 1169 conditions per place. [2024-10-11 17:08:28,074 INFO L140 encePairwiseOnDemand]: 261/303 looper letters, 590 selfloop transitions, 329 changer transitions 18/1183 dead transitions. [2024-10-11 17:08:28,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 554 places, 1183 transitions, 17604 flow [2024-10-11 17:08:28,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-10-11 17:08:28,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2024-10-11 17:08:28,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 9121 transitions. [2024-10-11 17:08:28,084 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6143328618576144 [2024-10-11 17:08:28,084 INFO L175 Difference]: Start difference. First operand has 506 places, 973 transitions, 14137 flow. Second operand 49 states and 9121 transitions. [2024-10-11 17:08:28,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 554 places, 1183 transitions, 17604 flow [2024-10-11 17:08:28,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 523 places, 1183 transitions, 17174 flow, removed 34 selfloop flow, removed 31 redundant places. [2024-10-11 17:08:28,530 INFO L231 Difference]: Finished difference. Result has 532 places, 1005 transitions, 15050 flow [2024-10-11 17:08:28,531 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=13728, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=973, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=297, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=668, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=15050, PETRI_PLACES=532, PETRI_TRANSITIONS=1005} [2024-10-11 17:08:28,532 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 226 predicate places. [2024-10-11 17:08:28,532 INFO L471 AbstractCegarLoop]: Abstraction has has 532 places, 1005 transitions, 15050 flow [2024-10-11 17:08:28,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 183.4) internal successors, (4585), 25 states have internal predecessors, (4585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:08:28,533 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:08:28,533 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:08:28,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-11 17:08:28,534 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-10-11 17:08:28,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:08:28,534 INFO L85 PathProgramCache]: Analyzing trace with hash -605924877, now seen corresponding path program 1 times [2024-10-11 17:08:28,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:08:28,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319280783] [2024-10-11 17:08:28,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:08:28,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:08:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat