./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longer.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:27:05,760 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:27:05,820 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:27:05,827 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:27:05,830 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:27:05,855 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:27:05,856 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:27:05,856 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:27:05,857 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:27:05,858 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:27:05,858 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:27:05,858 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:27:05,859 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:27:05,860 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:27:05,860 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:27:05,860 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:27:05,861 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:27:05,861 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:27:05,861 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:27:05,861 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:27:05,861 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:27:05,865 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:27:05,865 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:27:05,865 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:27:05,865 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:27:05,865 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:27:05,866 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:27:05,866 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:27:05,866 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:27:05,866 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:27:05,866 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:27:05,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:27:05,867 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:27:05,867 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:27:05,867 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:27:05,867 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:27:05,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:27:05,868 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:27:05,868 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:27:05,868 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:27:05,868 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:27:05,869 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 [2024-10-13 09:27:06,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:27:06,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:27:06,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:27:06,136 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:27:06,136 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:27:06,137 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longer.i [2024-10-13 09:27:07,477 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:27:07,673 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:27:07,674 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longer.i [2024-10-13 09:27:07,688 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4829617bf/13d3cdda354949b48cdade3f288a9545/FLAG9d026d543 [2024-10-13 09:27:08,026 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4829617bf/13d3cdda354949b48cdade3f288a9545 [2024-10-13 09:27:08,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:27:08,029 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:27:08,031 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:27:08,031 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:27:08,036 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:27:08,037 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:27:08" (1/1) ... [2024-10-13 09:27:08,039 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@683a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:08, skipping insertion in model container [2024-10-13 09:27:08,039 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:27:08" (1/1) ... [2024-10-13 09:27:08,104 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:27:08,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:27:08,501 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:27:08,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:27:08,585 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:27:08,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:08 WrapperNode [2024-10-13 09:27:08,585 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:27:08,586 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:27:08,586 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:27:08,586 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:27:08,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:08" (1/1) ... [2024-10-13 09:27:08,612 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:08" (1/1) ... [2024-10-13 09:27:08,643 INFO L138 Inliner]: procedures = 274, calls = 56, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 474 [2024-10-13 09:27:08,644 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:27:08,644 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:27:08,645 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:27:08,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:27:08,656 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:08" (1/1) ... [2024-10-13 09:27:08,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:08" (1/1) ... [2024-10-13 09:27:08,668 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:08" (1/1) ... [2024-10-13 09:27:08,668 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:08" (1/1) ... [2024-10-13 09:27:08,699 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:08" (1/1) ... [2024-10-13 09:27:08,711 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:08" (1/1) ... [2024-10-13 09:27:08,714 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:08" (1/1) ... [2024-10-13 09:27:08,716 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:08" (1/1) ... [2024-10-13 09:27:08,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:27:08,727 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:27:08,727 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:27:08,727 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:27:08,728 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:08" (1/1) ... [2024-10-13 09:27:08,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:27:08,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:27:08,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 09:27:08,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 09:27:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-10-13 09:27:08,795 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-10-13 09:27:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-10-13 09:27:08,795 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-10-13 09:27:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 09:27:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-13 09:27:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-13 09:27:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 09:27:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:27:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 09:27:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:27:08,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:27:08,798 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:27:08,943 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:27:08,946 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:27:09,645 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:27:09,649 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:27:09,720 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:27:09,720 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 09:27:09,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:27:09 BoogieIcfgContainer [2024-10-13 09:27:09,723 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:27:09,725 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:27:09,725 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:27:09,732 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:27:09,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:27:08" (1/3) ... [2024-10-13 09:27:09,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a74639a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:27:09, skipping insertion in model container [2024-10-13 09:27:09,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:27:08" (2/3) ... [2024-10-13 09:27:09,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a74639a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:27:09, skipping insertion in model container [2024-10-13 09:27:09,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:27:09" (3/3) ... [2024-10-13 09:27:09,739 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_longer.i [2024-10-13 09:27:09,769 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:27:09,773 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-10-13 09:27:09,773 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:27:10,048 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-13 09:27:10,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 534 places, 545 transitions, 1104 flow [2024-10-13 09:27:10,291 INFO L124 PetriNetUnfolderBase]: 18/543 cut-off events. [2024-10-13 09:27:10,295 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-13 09:27:10,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 543 events. 18/543 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 733 event pairs, 0 based on Foata normal form. 0/483 useless extension candidates. Maximal degree in co-relation 423. Up to 2 conditions per place. [2024-10-13 09:27:10,321 INFO L82 GeneralOperation]: Start removeDead. Operand has 534 places, 545 transitions, 1104 flow [2024-10-13 09:27:10,338 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 527 places, 538 transitions, 1085 flow [2024-10-13 09:27:10,352 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:27:10,360 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;@35e110dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:27:10,360 INFO L334 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2024-10-13 09:27:10,364 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:27:10,364 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-10-13 09:27:10,364 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:27:10,365 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:10,365 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:27:10,365 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-13 09:27:10,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:10,369 INFO L85 PathProgramCache]: Analyzing trace with hash 184386952, now seen corresponding path program 1 times [2024-10-13 09:27:10,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:10,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561144732] [2024-10-13 09:27:10,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:10,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:10,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:10,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:10,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561144732] [2024-10-13 09:27:10,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561144732] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:27:10,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:27:10,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:27:10,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409797784] [2024-10-13 09:27:10,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:27:10,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:27:10,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:10,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:27:10,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:27:10,672 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 545 [2024-10-13 09:27:10,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 538 transitions, 1085 flow. Second operand has 3 states, 3 states have (on average 514.3333333333334) internal successors, (1543), 3 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:10,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:10,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 545 [2024-10-13 09:27:10,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:11,068 INFO L124 PetriNetUnfolderBase]: 61/1637 cut-off events. [2024-10-13 09:27:11,068 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-13 09:27:11,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1732 conditions, 1637 events. 61/1637 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 7596 event pairs, 27 based on Foata normal form. 38/1498 useless extension candidates. Maximal degree in co-relation 1595. Up to 70 conditions per place. [2024-10-13 09:27:11,079 INFO L140 encePairwiseOnDemand]: 535/545 looper letters, 15 selfloop transitions, 2 changer transitions 0/519 dead transitions. [2024-10-13 09:27:11,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 519 transitions, 1081 flow [2024-10-13 09:27:11,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:27:11,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:27:11,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1564 transitions. [2024-10-13 09:27:11,098 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9565749235474006 [2024-10-13 09:27:11,100 INFO L175 Difference]: Start difference. First operand has 527 places, 538 transitions, 1085 flow. Second operand 3 states and 1564 transitions. [2024-10-13 09:27:11,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 519 transitions, 1081 flow [2024-10-13 09:27:11,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 519 transitions, 1076 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 09:27:11,115 INFO L231 Difference]: Finished difference. Result has 515 places, 519 transitions, 1046 flow [2024-10-13 09:27:11,117 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1042, PETRI_DIFFERENCE_MINUEND_PLACES=513, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1046, PETRI_PLACES=515, PETRI_TRANSITIONS=519} [2024-10-13 09:27:11,120 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -12 predicate places. [2024-10-13 09:27:11,120 INFO L471 AbstractCegarLoop]: Abstraction has has 515 places, 519 transitions, 1046 flow [2024-10-13 09:27:11,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 514.3333333333334) internal successors, (1543), 3 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:11,122 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:11,122 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:27:11,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:27:11,123 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-13 09:27:11,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:11,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1794494119, now seen corresponding path program 1 times [2024-10-13 09:27:11,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:11,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481825118] [2024-10-13 09:27:11,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:11,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:11,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:11,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:11,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481825118] [2024-10-13 09:27:11,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481825118] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:27:11,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:27:11,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:27:11,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445369863] [2024-10-13 09:27:11,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:27:11,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:27:11,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:11,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:27:11,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:27:11,276 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 545 [2024-10-13 09:27:11,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 519 transitions, 1046 flow. Second operand has 3 states, 3 states have (on average 514.3333333333334) internal successors, (1543), 3 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:11,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:11,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 545 [2024-10-13 09:27:11,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:11,578 INFO L124 PetriNetUnfolderBase]: 69/1911 cut-off events. [2024-10-13 09:27:11,579 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-13 09:27:11,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2004 conditions, 1911 events. 69/1911 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 9575 event pairs, 29 based on Foata normal form. 0/1706 useless extension candidates. Maximal degree in co-relation 1968. Up to 74 conditions per place. [2024-10-13 09:27:11,590 INFO L140 encePairwiseOnDemand]: 542/545 looper letters, 15 selfloop transitions, 2 changer transitions 0/518 dead transitions. [2024-10-13 09:27:11,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 518 transitions, 1078 flow [2024-10-13 09:27:11,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:27:11,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:27:11,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1557 transitions. [2024-10-13 09:27:11,594 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9522935779816514 [2024-10-13 09:27:11,594 INFO L175 Difference]: Start difference. First operand has 515 places, 519 transitions, 1046 flow. Second operand 3 states and 1557 transitions. [2024-10-13 09:27:11,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 518 transitions, 1078 flow [2024-10-13 09:27:11,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 518 transitions, 1074 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:27:11,600 INFO L231 Difference]: Finished difference. Result has 514 places, 518 transitions, 1044 flow [2024-10-13 09:27:11,601 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1040, PETRI_DIFFERENCE_MINUEND_PLACES=512, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=518, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1044, PETRI_PLACES=514, PETRI_TRANSITIONS=518} [2024-10-13 09:27:11,603 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -13 predicate places. [2024-10-13 09:27:11,603 INFO L471 AbstractCegarLoop]: Abstraction has has 514 places, 518 transitions, 1044 flow [2024-10-13 09:27:11,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 514.3333333333334) internal successors, (1543), 3 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:11,604 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:11,604 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:27:11,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 09:27:11,605 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-13 09:27:11,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:11,606 INFO L85 PathProgramCache]: Analyzing trace with hash 2067411053, now seen corresponding path program 1 times [2024-10-13 09:27:11,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:11,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441177824] [2024-10-13 09:27:11,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:11,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:12,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:12,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:12,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441177824] [2024-10-13 09:27:12,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441177824] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:27:12,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:27:12,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:27:12,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522306468] [2024-10-13 09:27:12,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:27:12,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:27:12,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:12,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:27:12,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:27:12,685 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 545 [2024-10-13 09:27:12,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 518 transitions, 1044 flow. Second operand has 6 states, 6 states have (on average 389.3333333333333) internal successors, (2336), 6 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:12,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:12,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 545 [2024-10-13 09:27:12,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:14,888 INFO L124 PetriNetUnfolderBase]: 3722/15130 cut-off events. [2024-10-13 09:27:14,888 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-13 09:27:14,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22228 conditions, 15130 events. 3722/15130 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 137381 event pairs, 3314 based on Foata normal form. 0/13666 useless extension candidates. Maximal degree in co-relation 22188. Up to 6918 conditions per place. [2024-10-13 09:27:14,966 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 138 selfloop transitions, 5 changer transitions 0/517 dead transitions. [2024-10-13 09:27:14,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 517 transitions, 1328 flow [2024-10-13 09:27:14,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:27:14,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:27:14,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2472 transitions. [2024-10-13 09:27:14,971 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7559633027522936 [2024-10-13 09:27:14,971 INFO L175 Difference]: Start difference. First operand has 514 places, 518 transitions, 1044 flow. Second operand 6 states and 2472 transitions. [2024-10-13 09:27:14,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 517 transitions, 1328 flow [2024-10-13 09:27:14,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 517 transitions, 1324 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:27:14,981 INFO L231 Difference]: Finished difference. Result has 516 places, 517 transitions, 1048 flow [2024-10-13 09:27:14,982 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1038, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=512, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1048, PETRI_PLACES=516, PETRI_TRANSITIONS=517} [2024-10-13 09:27:14,983 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -11 predicate places. [2024-10-13 09:27:14,983 INFO L471 AbstractCegarLoop]: Abstraction has has 516 places, 517 transitions, 1048 flow [2024-10-13 09:27:14,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 389.3333333333333) internal successors, (2336), 6 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:14,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:14,985 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:27:14,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 09:27:14,985 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-13 09:27:14,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:14,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1539044538, now seen corresponding path program 1 times [2024-10-13 09:27:14,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:14,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991762922] [2024-10-13 09:27:14,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:14,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:15,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:15,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:15,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991762922] [2024-10-13 09:27:15,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991762922] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:27:15,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:27:15,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:27:15,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576493095] [2024-10-13 09:27:15,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:27:15,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:27:15,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:15,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:27:15,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:27:15,651 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 545 [2024-10-13 09:27:15,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 517 transitions, 1048 flow. Second operand has 6 states, 6 states have (on average 389.3333333333333) internal successors, (2336), 6 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:15,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:15,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 545 [2024-10-13 09:27:15,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:17,860 INFO L124 PetriNetUnfolderBase]: 3722/15129 cut-off events. [2024-10-13 09:27:17,860 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-13 09:27:17,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22230 conditions, 15129 events. 3722/15129 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 137592 event pairs, 3314 based on Foata normal form. 0/13666 useless extension candidates. Maximal degree in co-relation 22174. Up to 6918 conditions per place. [2024-10-13 09:27:17,941 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 138 selfloop transitions, 5 changer transitions 0/516 dead transitions. [2024-10-13 09:27:17,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 516 transitions, 1332 flow [2024-10-13 09:27:17,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:27:17,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:27:17,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2472 transitions. [2024-10-13 09:27:17,947 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7559633027522936 [2024-10-13 09:27:17,947 INFO L175 Difference]: Start difference. First operand has 516 places, 517 transitions, 1048 flow. Second operand 6 states and 2472 transitions. [2024-10-13 09:27:17,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 516 transitions, 1332 flow [2024-10-13 09:27:17,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 516 transitions, 1322 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:27:17,958 INFO L231 Difference]: Finished difference. Result has 515 places, 516 transitions, 1046 flow [2024-10-13 09:27:17,960 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1036, PETRI_DIFFERENCE_MINUEND_PLACES=510, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=516, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1046, PETRI_PLACES=515, PETRI_TRANSITIONS=516} [2024-10-13 09:27:17,961 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -12 predicate places. [2024-10-13 09:27:17,961 INFO L471 AbstractCegarLoop]: Abstraction has has 515 places, 516 transitions, 1046 flow [2024-10-13 09:27:17,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 389.3333333333333) internal successors, (2336), 6 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:17,963 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:17,963 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:27:17,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 09:27:17,965 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-13 09:27:17,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:17,965 INFO L85 PathProgramCache]: Analyzing trace with hash 382549686, now seen corresponding path program 1 times [2024-10-13 09:27:17,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:17,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170247295] [2024-10-13 09:27:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:17,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:18,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:18,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:18,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170247295] [2024-10-13 09:27:18,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170247295] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:27:18,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:27:18,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:27:18,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634451050] [2024-10-13 09:27:18,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:27:18,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:27:18,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:18,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:27:18,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:27:19,034 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 545 [2024-10-13 09:27:19,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 516 transitions, 1046 flow. Second operand has 6 states, 6 states have (on average 389.3333333333333) internal successors, (2336), 6 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:19,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:19,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 545 [2024-10-13 09:27:19,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:21,332 INFO L124 PetriNetUnfolderBase]: 3722/15128 cut-off events. [2024-10-13 09:27:21,333 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-13 09:27:21,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22229 conditions, 15128 events. 3722/15128 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 137351 event pairs, 3314 based on Foata normal form. 0/13666 useless extension candidates. Maximal degree in co-relation 22165. Up to 6918 conditions per place. [2024-10-13 09:27:21,397 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 138 selfloop transitions, 5 changer transitions 0/515 dead transitions. [2024-10-13 09:27:21,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 515 transitions, 1330 flow [2024-10-13 09:27:21,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:27:21,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:27:21,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2472 transitions. [2024-10-13 09:27:21,405 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7559633027522936 [2024-10-13 09:27:21,405 INFO L175 Difference]: Start difference. First operand has 515 places, 516 transitions, 1046 flow. Second operand 6 states and 2472 transitions. [2024-10-13 09:27:21,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 515 transitions, 1330 flow [2024-10-13 09:27:21,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 515 transitions, 1320 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:27:21,411 INFO L231 Difference]: Finished difference. Result has 514 places, 515 transitions, 1044 flow [2024-10-13 09:27:21,412 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1034, PETRI_DIFFERENCE_MINUEND_PLACES=509, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=515, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=510, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1044, PETRI_PLACES=514, PETRI_TRANSITIONS=515} [2024-10-13 09:27:21,412 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -13 predicate places. [2024-10-13 09:27:21,412 INFO L471 AbstractCegarLoop]: Abstraction has has 514 places, 515 transitions, 1044 flow [2024-10-13 09:27:21,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 389.3333333333333) internal successors, (2336), 6 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:21,414 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:21,414 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:27:21,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 09:27:21,414 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-13 09:27:21,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:21,415 INFO L85 PathProgramCache]: Analyzing trace with hash 504962579, now seen corresponding path program 1 times [2024-10-13 09:27:21,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:21,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945574628] [2024-10-13 09:27:21,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:21,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:21,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:21,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:21,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:21,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945574628] [2024-10-13 09:27:21,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945574628] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:27:21,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:27:21,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:27:21,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645900833] [2024-10-13 09:27:21,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:27:21,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:27:21,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:21,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:27:21,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:27:22,741 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 545 [2024-10-13 09:27:22,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 515 transitions, 1044 flow. Second operand has 6 states, 6 states have (on average 453.1666666666667) internal successors, (2719), 6 states have internal predecessors, (2719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:22,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:22,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 545 [2024-10-13 09:27:22,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:23,564 INFO L124 PetriNetUnfolderBase]: 858/5626 cut-off events. [2024-10-13 09:27:23,565 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-13 09:27:23,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7230 conditions, 5626 events. 858/5626 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 45934 event pairs, 674 based on Foata normal form. 0/5010 useless extension candidates. Maximal degree in co-relation 7148. Up to 1501 conditions per place. [2024-10-13 09:27:23,591 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 76 selfloop transitions, 5 changer transitions 0/514 dead transitions. [2024-10-13 09:27:23,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 514 transitions, 1204 flow [2024-10-13 09:27:23,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:27:23,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:27:23,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2782 transitions. [2024-10-13 09:27:23,597 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8507645259938837 [2024-10-13 09:27:23,597 INFO L175 Difference]: Start difference. First operand has 514 places, 515 transitions, 1044 flow. Second operand 6 states and 2782 transitions. [2024-10-13 09:27:23,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 514 transitions, 1204 flow [2024-10-13 09:27:23,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 514 transitions, 1194 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:27:23,604 INFO L231 Difference]: Finished difference. Result has 513 places, 514 transitions, 1042 flow [2024-10-13 09:27:23,604 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1032, PETRI_DIFFERENCE_MINUEND_PLACES=508, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=514, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=509, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1042, PETRI_PLACES=513, PETRI_TRANSITIONS=514} [2024-10-13 09:27:23,605 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -14 predicate places. [2024-10-13 09:27:23,605 INFO L471 AbstractCegarLoop]: Abstraction has has 513 places, 514 transitions, 1042 flow [2024-10-13 09:27:23,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 453.1666666666667) internal successors, (2719), 6 states have internal predecessors, (2719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:23,606 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:23,607 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:27:23,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 09:27:23,607 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-13 09:27:23,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:23,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1691233872, now seen corresponding path program 1 times [2024-10-13 09:27:23,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:23,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090584652] [2024-10-13 09:27:23,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:23,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:24,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:24,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:24,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090584652] [2024-10-13 09:27:24,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090584652] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:27:24,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:27:24,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:27:24,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339458349] [2024-10-13 09:27:24,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:27:24,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:27:24,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:24,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:27:24,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:27:24,795 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 545 [2024-10-13 09:27:24,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 514 transitions, 1042 flow. Second operand has 6 states, 6 states have (on average 453.1666666666667) internal successors, (2719), 6 states have internal predecessors, (2719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:24,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:24,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 545 [2024-10-13 09:27:24,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:25,553 INFO L124 PetriNetUnfolderBase]: 858/5625 cut-off events. [2024-10-13 09:27:25,554 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-13 09:27:25,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7229 conditions, 5625 events. 858/5625 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 45623 event pairs, 674 based on Foata normal form. 0/5010 useless extension candidates. Maximal degree in co-relation 7109. Up to 1501 conditions per place. [2024-10-13 09:27:25,587 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 76 selfloop transitions, 5 changer transitions 0/513 dead transitions. [2024-10-13 09:27:25,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 513 transitions, 1202 flow [2024-10-13 09:27:25,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:27:25,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:27:25,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2782 transitions. [2024-10-13 09:27:25,593 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8507645259938837 [2024-10-13 09:27:25,593 INFO L175 Difference]: Start difference. First operand has 513 places, 514 transitions, 1042 flow. Second operand 6 states and 2782 transitions. [2024-10-13 09:27:25,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 513 transitions, 1202 flow [2024-10-13 09:27:25,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 512 places, 513 transitions, 1192 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:27:25,600 INFO L231 Difference]: Finished difference. Result has 512 places, 513 transitions, 1040 flow [2024-10-13 09:27:25,600 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=507, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=513, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1040, PETRI_PLACES=512, PETRI_TRANSITIONS=513} [2024-10-13 09:27:25,601 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -15 predicate places. [2024-10-13 09:27:25,601 INFO L471 AbstractCegarLoop]: Abstraction has has 512 places, 513 transitions, 1040 flow [2024-10-13 09:27:25,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 453.1666666666667) internal successors, (2719), 6 states have internal predecessors, (2719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:25,603 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:25,603 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:27:25,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 09:27:25,603 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-13 09:27:25,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:25,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1648747429, now seen corresponding path program 1 times [2024-10-13 09:27:25,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:25,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012570196] [2024-10-13 09:27:25,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:25,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:25,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:25,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:25,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012570196] [2024-10-13 09:27:25,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012570196] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:27:25,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:27:25,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:27:25,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607821986] [2024-10-13 09:27:25,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:27:25,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:27:25,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:25,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:27:25,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:27:25,697 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 517 out of 545 [2024-10-13 09:27:25,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 513 transitions, 1040 flow. Second operand has 3 states, 3 states have (on average 519.0) internal successors, (1557), 3 states have internal predecessors, (1557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:25,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:25,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 517 of 545 [2024-10-13 09:27:25,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:26,499 INFO L124 PetriNetUnfolderBase]: 114/2629 cut-off events. [2024-10-13 09:27:26,499 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-13 09:27:26,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2796 conditions, 2629 events. 114/2629 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 13996 event pairs, 25 based on Foata normal form. 0/2333 useless extension candidates. Maximal degree in co-relation 2695. Up to 88 conditions per place. [2024-10-13 09:27:26,521 INFO L140 encePairwiseOnDemand]: 540/545 looper letters, 22 selfloop transitions, 4 changer transitions 0/524 dead transitions. [2024-10-13 09:27:26,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 524 transitions, 1115 flow [2024-10-13 09:27:26,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:27:26,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:27:26,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1578 transitions. [2024-10-13 09:27:26,524 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9651376146788991 [2024-10-13 09:27:26,524 INFO L175 Difference]: Start difference. First operand has 512 places, 513 transitions, 1040 flow. Second operand 3 states and 1578 transitions. [2024-10-13 09:27:26,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 524 transitions, 1115 flow [2024-10-13 09:27:26,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 509 places, 524 transitions, 1105 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:27:26,535 INFO L231 Difference]: Finished difference. Result has 511 places, 517 transitions, 1064 flow [2024-10-13 09:27:26,536 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=507, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=513, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=509, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1064, PETRI_PLACES=511, PETRI_TRANSITIONS=517} [2024-10-13 09:27:26,539 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -16 predicate places. [2024-10-13 09:27:26,539 INFO L471 AbstractCegarLoop]: Abstraction has has 511 places, 517 transitions, 1064 flow [2024-10-13 09:27:26,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 519.0) internal successors, (1557), 3 states have internal predecessors, (1557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:26,540 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:26,540 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:27:26,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 09:27:26,541 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-13 09:27:26,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:26,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1833150553, now seen corresponding path program 1 times [2024-10-13 09:27:26,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:26,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349445721] [2024-10-13 09:27:26,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:26,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:27,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:27,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:27,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349445721] [2024-10-13 09:27:27,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349445721] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:27:27,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:27:27,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-13 09:27:27,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553407940] [2024-10-13 09:27:27,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:27:27,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 09:27:27,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:27,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 09:27:27,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:27:29,003 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 545 [2024-10-13 09:27:29,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 517 transitions, 1064 flow. Second operand has 13 states, 13 states have (on average 487.9230769230769) internal successors, (6343), 13 states have internal predecessors, (6343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:29,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:29,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 545 [2024-10-13 09:27:29,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:29,779 INFO L124 PetriNetUnfolderBase]: 251/4151 cut-off events. [2024-10-13 09:27:29,780 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-10-13 09:27:29,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4653 conditions, 4151 events. 251/4151 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 28777 event pairs, 81 based on Foata normal form. 0/3693 useless extension candidates. Maximal degree in co-relation 4177. Up to 356 conditions per place. [2024-10-13 09:27:29,806 INFO L140 encePairwiseOnDemand]: 527/545 looper letters, 32 selfloop transitions, 17 changer transitions 0/519 dead transitions. [2024-10-13 09:27:29,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 519 transitions, 1168 flow [2024-10-13 09:27:29,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 09:27:29,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-13 09:27:29,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 5882 transitions. [2024-10-13 09:27:29,816 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.899388379204893 [2024-10-13 09:27:29,817 INFO L175 Difference]: Start difference. First operand has 511 places, 517 transitions, 1064 flow. Second operand 12 states and 5882 transitions. [2024-10-13 09:27:29,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 519 transitions, 1168 flow [2024-10-13 09:27:29,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 517 places, 519 transitions, 1160 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:27:29,825 INFO L231 Difference]: Finished difference. Result has 518 places, 515 transitions, 1097 flow [2024-10-13 09:27:29,826 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1048, PETRI_DIFFERENCE_MINUEND_PLACES=506, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=513, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1097, PETRI_PLACES=518, PETRI_TRANSITIONS=515} [2024-10-13 09:27:29,827 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -9 predicate places. [2024-10-13 09:27:29,827 INFO L471 AbstractCegarLoop]: Abstraction has has 518 places, 515 transitions, 1097 flow [2024-10-13 09:27:29,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 487.9230769230769) internal successors, (6343), 13 states have internal predecessors, (6343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:29,830 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:29,831 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:27:29,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 09:27:29,831 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-13 09:27:29,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:29,833 INFO L85 PathProgramCache]: Analyzing trace with hash -2140385120, now seen corresponding path program 1 times [2024-10-13 09:27:29,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:29,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478634670] [2024-10-13 09:27:29,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:29,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:30,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:30,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:30,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478634670] [2024-10-13 09:27:30,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478634670] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:27:30,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:27:30,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:27:30,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958150670] [2024-10-13 09:27:30,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:27:30,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:27:30,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:30,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:27:30,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:27:31,180 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 421 out of 545 [2024-10-13 09:27:31,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 518 places, 515 transitions, 1097 flow. Second operand has 6 states, 6 states have (on average 424.5) internal successors, (2547), 6 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:31,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:31,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 421 of 545 [2024-10-13 09:27:31,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:33,628 INFO L124 PetriNetUnfolderBase]: 3134/14428 cut-off events. [2024-10-13 09:27:33,628 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-10-13 09:27:33,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20717 conditions, 14428 events. 3134/14428 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 132033 event pairs, 1321 based on Foata normal form. 0/13026 useless extension candidates. Maximal degree in co-relation 19926. Up to 4553 conditions per place. [2024-10-13 09:27:33,722 INFO L140 encePairwiseOnDemand]: 491/545 looper letters, 125 selfloop transitions, 84 changer transitions 0/613 dead transitions. [2024-10-13 09:27:33,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 523 places, 613 transitions, 1719 flow [2024-10-13 09:27:33,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:27:33,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:27:33,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2741 transitions. [2024-10-13 09:27:33,727 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8382262996941896 [2024-10-13 09:27:33,727 INFO L175 Difference]: Start difference. First operand has 518 places, 515 transitions, 1097 flow. Second operand 6 states and 2741 transitions. [2024-10-13 09:27:33,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 523 places, 613 transitions, 1719 flow [2024-10-13 09:27:33,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 613 transitions, 1692 flow, removed 0 selfloop flow, removed 10 redundant places. [2024-10-13 09:27:33,736 INFO L231 Difference]: Finished difference. Result has 518 places, 595 transitions, 1666 flow [2024-10-13 09:27:33,738 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1070, PETRI_DIFFERENCE_MINUEND_PLACES=508, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=515, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1666, PETRI_PLACES=518, PETRI_TRANSITIONS=595} [2024-10-13 09:27:33,739 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -9 predicate places. [2024-10-13 09:27:33,739 INFO L471 AbstractCegarLoop]: Abstraction has has 518 places, 595 transitions, 1666 flow [2024-10-13 09:27:33,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 424.5) internal successors, (2547), 6 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:33,742 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:33,742 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:27:33,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 09:27:33,745 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-13 09:27:33,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:33,745 INFO L85 PathProgramCache]: Analyzing trace with hash 724346284, now seen corresponding path program 1 times [2024-10-13 09:27:33,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:33,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335990176] [2024-10-13 09:27:33,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:33,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:33,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:33,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:33,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335990176] [2024-10-13 09:27:33,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335990176] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:27:33,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:27:33,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:27:33,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974202067] [2024-10-13 09:27:33,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:27:33,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:27:33,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:33,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:27:33,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:27:33,928 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 518 out of 545 [2024-10-13 09:27:33,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 518 places, 595 transitions, 1666 flow. Second operand has 3 states, 3 states have (on average 520.0) internal successors, (1560), 3 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:33,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:33,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 518 of 545 [2024-10-13 09:27:33,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:35,415 INFO L124 PetriNetUnfolderBase]: 990/8697 cut-off events. [2024-10-13 09:27:35,415 INFO L125 PetriNetUnfolderBase]: For 621/633 co-relation queries the response was YES. [2024-10-13 09:27:35,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12457 conditions, 8697 events. 990/8697 cut-off events. For 621/633 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 73822 event pairs, 110 based on Foata normal form. 24/7934 useless extension candidates. Maximal degree in co-relation 11823. Up to 966 conditions per place. [2024-10-13 09:27:35,477 INFO L140 encePairwiseOnDemand]: 541/545 looper letters, 18 selfloop transitions, 3 changer transitions 0/581 dead transitions. [2024-10-13 09:27:35,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 581 transitions, 1627 flow [2024-10-13 09:27:35,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:27:35,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:27:35,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1576 transitions. [2024-10-13 09:27:35,480 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.963914373088685 [2024-10-13 09:27:35,480 INFO L175 Difference]: Start difference. First operand has 518 places, 595 transitions, 1666 flow. Second operand 3 states and 1576 transitions. [2024-10-13 09:27:35,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 581 transitions, 1627 flow [2024-10-13 09:27:35,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 581 transitions, 1599 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-10-13 09:27:35,498 INFO L231 Difference]: Finished difference. Result has 516 places, 575 transitions, 1555 flow [2024-10-13 09:27:35,499 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1540, PETRI_DIFFERENCE_MINUEND_PLACES=513, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=574, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=571, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1555, PETRI_PLACES=516, PETRI_TRANSITIONS=575} [2024-10-13 09:27:35,499 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -11 predicate places. [2024-10-13 09:27:35,499 INFO L471 AbstractCegarLoop]: Abstraction has has 516 places, 575 transitions, 1555 flow [2024-10-13 09:27:35,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 520.0) internal successors, (1560), 3 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:35,500 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:35,500 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:27:35,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 09:27:35,501 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-13 09:27:35,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:35,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1224579267, now seen corresponding path program 1 times [2024-10-13 09:27:35,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:35,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243675017] [2024-10-13 09:27:35,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:35,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:35,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:35,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:35,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243675017] [2024-10-13 09:27:35,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243675017] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:27:35,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:27:35,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:27:35,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145892946] [2024-10-13 09:27:35,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:27:35,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:27:35,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:35,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:27:35,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:27:36,515 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 545 [2024-10-13 09:27:36,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 575 transitions, 1555 flow. Second operand has 6 states, 6 states have (on average 374.8333333333333) internal successors, (2249), 6 states have internal predecessors, (2249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:36,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:36,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 545 [2024-10-13 09:27:36,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:41,793 INFO L124 PetriNetUnfolderBase]: 6037/22353 cut-off events. [2024-10-13 09:27:41,793 INFO L125 PetriNetUnfolderBase]: For 4260/4491 co-relation queries the response was YES. [2024-10-13 09:27:41,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40931 conditions, 22353 events. 6037/22353 cut-off events. For 4260/4491 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 221950 event pairs, 3626 based on Foata normal form. 30/20339 useless extension candidates. Maximal degree in co-relation 39596. Up to 11092 conditions per place. [2024-10-13 09:27:41,897 INFO L140 encePairwiseOnDemand]: 496/545 looper letters, 228 selfloop transitions, 156 changer transitions 0/735 dead transitions. [2024-10-13 09:27:41,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 735 transitions, 2747 flow [2024-10-13 09:27:41,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:27:41,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:27:41,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2539 transitions. [2024-10-13 09:27:41,901 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7764525993883792 [2024-10-13 09:27:41,902 INFO L175 Difference]: Start difference. First operand has 516 places, 575 transitions, 1555 flow. Second operand 6 states and 2539 transitions. [2024-10-13 09:27:41,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 735 transitions, 2747 flow [2024-10-13 09:27:41,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 519 places, 735 transitions, 2744 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:27:41,920 INFO L231 Difference]: Finished difference. Result has 524 places, 723 transitions, 2652 flow [2024-10-13 09:27:41,921 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1550, PETRI_DIFFERENCE_MINUEND_PLACES=514, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=574, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=526, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2652, PETRI_PLACES=524, PETRI_TRANSITIONS=723} [2024-10-13 09:27:41,922 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -3 predicate places. [2024-10-13 09:27:41,922 INFO L471 AbstractCegarLoop]: Abstraction has has 524 places, 723 transitions, 2652 flow [2024-10-13 09:27:41,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 374.8333333333333) internal successors, (2249), 6 states have internal predecessors, (2249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:41,923 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:41,923 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:27:41,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 09:27:41,923 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-13 09:27:41,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:41,923 INFO L85 PathProgramCache]: Analyzing trace with hash 767111874, now seen corresponding path program 1 times [2024-10-13 09:27:41,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:41,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131615774] [2024-10-13 09:27:41,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:41,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:42,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:42,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:42,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131615774] [2024-10-13 09:27:42,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131615774] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:27:42,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:27:42,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:27:42,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258271189] [2024-10-13 09:27:42,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:27:42,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:27:42,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:42,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:27:42,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:27:43,314 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 545 [2024-10-13 09:27:43,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 723 transitions, 2652 flow. Second operand has 6 states, 6 states have (on average 459.1666666666667) internal successors, (2755), 6 states have internal predecessors, (2755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:43,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:43,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 545 [2024-10-13 09:27:43,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:45,790 INFO L124 PetriNetUnfolderBase]: 2727/14385 cut-off events. [2024-10-13 09:27:45,791 INFO L125 PetriNetUnfolderBase]: For 4611/5292 co-relation queries the response was YES. [2024-10-13 09:27:45,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27397 conditions, 14385 events. 2727/14385 cut-off events. For 4611/5292 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 139874 event pairs, 749 based on Foata normal form. 51/13145 useless extension candidates. Maximal degree in co-relation 26423. Up to 3595 conditions per place. [2024-10-13 09:27:45,867 INFO L140 encePairwiseOnDemand]: 520/545 looper letters, 182 selfloop transitions, 59 changer transitions 0/787 dead transitions. [2024-10-13 09:27:45,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 787 transitions, 3462 flow [2024-10-13 09:27:45,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:27:45,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:27:45,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2873 transitions. [2024-10-13 09:27:45,871 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8785932721712538 [2024-10-13 09:27:45,871 INFO L175 Difference]: Start difference. First operand has 524 places, 723 transitions, 2652 flow. Second operand 6 states and 2873 transitions. [2024-10-13 09:27:45,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 787 transitions, 3462 flow [2024-10-13 09:27:45,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 787 transitions, 3366 flow, removed 48 selfloop flow, removed 0 redundant places. [2024-10-13 09:27:45,914 INFO L231 Difference]: Finished difference. Result has 533 places, 775 transitions, 3124 flow [2024-10-13 09:27:45,915 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=2554, PETRI_DIFFERENCE_MINUEND_PLACES=523, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=722, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=699, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3124, PETRI_PLACES=533, PETRI_TRANSITIONS=775} [2024-10-13 09:27:45,918 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, 6 predicate places. [2024-10-13 09:27:45,919 INFO L471 AbstractCegarLoop]: Abstraction has has 533 places, 775 transitions, 3124 flow [2024-10-13 09:27:45,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 459.1666666666667) internal successors, (2755), 6 states have internal predecessors, (2755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:45,924 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:45,924 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:27:45,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 09:27:45,924 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-13 09:27:45,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:45,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1826880967, now seen corresponding path program 1 times [2024-10-13 09:27:45,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:45,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100531766] [2024-10-13 09:27:45,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:45,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:46,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:46,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:46,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100531766] [2024-10-13 09:27:46,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100531766] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:27:46,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:27:46,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:27:46,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713893823] [2024-10-13 09:27:46,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:27:46,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:27:46,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:46,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:27:46,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:27:46,947 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 545 [2024-10-13 09:27:46,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 533 places, 775 transitions, 3124 flow. Second operand has 6 states, 6 states have (on average 417.5) internal successors, (2505), 6 states have internal predecessors, (2505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:46,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:46,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 545 [2024-10-13 09:27:46,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:27:50,743 INFO L124 PetriNetUnfolderBase]: 4709/19168 cut-off events. [2024-10-13 09:27:50,743 INFO L125 PetriNetUnfolderBase]: For 8408/8742 co-relation queries the response was YES. [2024-10-13 09:27:50,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41167 conditions, 19168 events. 4709/19168 cut-off events. For 8408/8742 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 188948 event pairs, 1581 based on Foata normal form. 59/17580 useless extension candidates. Maximal degree in co-relation 40081. Up to 7811 conditions per place. [2024-10-13 09:27:50,858 INFO L140 encePairwiseOnDemand]: 496/545 looper letters, 374 selfloop transitions, 156 changer transitions 0/935 dead transitions. [2024-10-13 09:27:50,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 537 places, 935 transitions, 4992 flow [2024-10-13 09:27:50,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:27:50,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:27:50,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2749 transitions. [2024-10-13 09:27:50,862 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8406727828746178 [2024-10-13 09:27:50,862 INFO L175 Difference]: Start difference. First operand has 533 places, 775 transitions, 3124 flow. Second operand 6 states and 2749 transitions. [2024-10-13 09:27:50,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 537 places, 935 transitions, 4992 flow [2024-10-13 09:27:50,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 537 places, 935 transitions, 4896 flow, removed 48 selfloop flow, removed 0 redundant places. [2024-10-13 09:27:50,899 INFO L231 Difference]: Finished difference. Result has 542 places, 923 transitions, 4512 flow [2024-10-13 09:27:50,902 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=3026, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=774, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=726, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4512, PETRI_PLACES=542, PETRI_TRANSITIONS=923} [2024-10-13 09:27:50,902 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, 15 predicate places. [2024-10-13 09:27:50,903 INFO L471 AbstractCegarLoop]: Abstraction has has 542 places, 923 transitions, 4512 flow [2024-10-13 09:27:50,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 417.5) internal successors, (2505), 6 states have internal predecessors, (2505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:50,904 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:27:50,904 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:27:50,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 09:27:50,904 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-13 09:27:50,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:27:50,905 INFO L85 PathProgramCache]: Analyzing trace with hash 767497366, now seen corresponding path program 1 times [2024-10-13 09:27:50,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:27:50,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381460729] [2024-10-13 09:27:50,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:27:50,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:27:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:27:51,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:27:51,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:27:51,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381460729] [2024-10-13 09:27:51,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381460729] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:27:51,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:27:51,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:27:51,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746589895] [2024-10-13 09:27:51,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:27:51,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:27:51,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:27:51,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:27:51,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:27:52,157 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 545 [2024-10-13 09:27:52,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 923 transitions, 4512 flow. Second operand has 6 states, 6 states have (on average 388.3333333333333) internal successors, (2330), 6 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:27:52,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:27:52,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 545 [2024-10-13 09:27:52,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand