./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 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/goblint-regression/09-regions_03-list2_rc.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 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:23:22,462 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:23:22,528 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:23:22,533 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:23:22,534 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:23:22,577 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:23:22,578 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:23:22,578 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:23:22,579 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:23:22,579 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:23:22,580 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:23:22,580 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:23:22,580 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:23:22,583 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:23:22,584 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:23:22,584 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:23:22,584 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:23:22,584 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:23:22,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:23:22,585 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:23:22,585 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:23:22,586 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:23:22,586 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:23:22,586 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:23:22,586 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:23:22,587 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:23:22,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:23:22,591 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:23:22,592 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:23:22,592 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:23:22,592 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:23:22,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:23:22,592 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:23:22,593 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:23:22,593 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:23:22,593 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:23:22,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:23:22,594 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:23:22,594 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:23:22,594 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:23:22,595 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:23:22,596 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 [2024-10-24 15:23:22,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:23:22,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:23:22,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:23:22,898 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:23:22,898 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:23:22,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i [2024-10-24 15:23:24,320 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:23:24,614 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:23:24,620 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_03-list2_rc.i [2024-10-24 15:23:24,644 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38906d8e2/1c8e7c1374f04ec5b72bc1ff42b8fbd6/FLAGf2b419638 [2024-10-24 15:23:24,659 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38906d8e2/1c8e7c1374f04ec5b72bc1ff42b8fbd6 [2024-10-24 15:23:24,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:23:24,663 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:23:24,665 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:23:24,665 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:23:24,670 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:23:24,671 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:23:24" (1/1) ... [2024-10-24 15:23:24,671 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f9f6cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:24, skipping insertion in model container [2024-10-24 15:23:24,671 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:23:24" (1/1) ... [2024-10-24 15:23:24,719 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:23:25,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:23:25,254 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:23:25,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:23:25,393 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:23:25,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:25 WrapperNode [2024-10-24 15:23:25,394 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:23:25,395 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:23:25,396 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:23:25,396 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:23:25,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:25" (1/1) ... [2024-10-24 15:23:25,438 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:25" (1/1) ... [2024-10-24 15:23:25,490 INFO L138 Inliner]: procedures = 368, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 177 [2024-10-24 15:23:25,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:23:25,494 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:23:25,494 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:23:25,494 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:23:25,503 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:25" (1/1) ... [2024-10-24 15:23:25,504 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:25" (1/1) ... [2024-10-24 15:23:25,515 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:25" (1/1) ... [2024-10-24 15:23:25,519 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:25" (1/1) ... [2024-10-24 15:23:25,543 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:25" (1/1) ... [2024-10-24 15:23:25,545 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:25" (1/1) ... [2024-10-24 15:23:25,550 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:25" (1/1) ... [2024-10-24 15:23:25,552 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:25" (1/1) ... [2024-10-24 15:23:25,558 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:23:25,563 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:23:25,563 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:23:25,563 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:23:25,564 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:25" (1/1) ... [2024-10-24 15:23:25,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:23:25,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:23:25,604 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) [2024-10-24 15:23:25,628 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 [2024-10-24 15:23:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-24 15:23:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 15:23:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-24 15:23:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:23:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 15:23:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 15:23:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:23:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-24 15:23:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-24 15:23:25,700 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-24 15:23:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:23:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:23:25,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:23:25,701 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:23:25,834 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:23:25,836 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:23:26,284 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:23:26,284 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:23:26,328 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:23:26,329 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 15:23:26,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:23:26 BoogieIcfgContainer [2024-10-24 15:23:26,329 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:23:26,331 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:23:26,331 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:23:26,337 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:23:26,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:23:24" (1/3) ... [2024-10-24 15:23:26,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b8f1c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:23:26, skipping insertion in model container [2024-10-24 15:23:26,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:23:25" (2/3) ... [2024-10-24 15:23:26,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b8f1c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:23:26, skipping insertion in model container [2024-10-24 15:23:26,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:23:26" (3/3) ... [2024-10-24 15:23:26,340 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_03-list2_rc.i [2024-10-24 15:23:26,357 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:23:26,357 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-10-24 15:23:26,357 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:23:26,449 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 15:23:26,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 280 places, 276 transitions, 556 flow [2024-10-24 15:23:26,599 INFO L124 PetriNetUnfolderBase]: 0/275 cut-off events. [2024-10-24 15:23:26,599 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:23:26,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 275 events. 0/275 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 160 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-10-24 15:23:26,606 INFO L82 GeneralOperation]: Start removeDead. Operand has 280 places, 276 transitions, 556 flow [2024-10-24 15:23:26,613 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 279 places, 275 transitions, 553 flow [2024-10-24 15:23:26,629 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:23:26,639 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;@21d26cbb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:23:26,640 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-10-24 15:23:26,649 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:23:26,650 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2024-10-24 15:23:26,651 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:23:26,651 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:26,652 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:26,652 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:23:26,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:26,658 INFO L85 PathProgramCache]: Analyzing trace with hash -528824746, now seen corresponding path program 1 times [2024-10-24 15:23:26,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:26,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713070008] [2024-10-24 15:23:26,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:26,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:27,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:27,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:27,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713070008] [2024-10-24 15:23:27,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713070008] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:27,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:27,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:27,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038713697] [2024-10-24 15:23:27,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:27,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:27,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:27,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:27,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:28,200 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 276 [2024-10-24 15:23:28,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 275 transitions, 553 flow. Second operand has 6 states, 6 states have (on average 187.33333333333334) internal successors, (1124), 6 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:28,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:28,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 276 [2024-10-24 15:23:28,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:28,796 INFO L124 PetriNetUnfolderBase]: 560/2325 cut-off events. [2024-10-24 15:23:28,797 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:23:28,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3537 conditions, 2325 events. 560/2325 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 14858 event pairs, 560 based on Foata normal form. 0/2115 useless extension candidates. Maximal degree in co-relation 3350. Up to 1193 conditions per place. [2024-10-24 15:23:28,831 INFO L140 encePairwiseOnDemand]: 258/276 looper letters, 72 selfloop transitions, 15 changer transitions 0/272 dead transitions. [2024-10-24 15:23:28,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 272 transitions, 721 flow [2024-10-24 15:23:28,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:28,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:28,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1206 transitions. [2024-10-24 15:23:28,858 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7282608695652174 [2024-10-24 15:23:28,860 INFO L175 Difference]: Start difference. First operand has 279 places, 275 transitions, 553 flow. Second operand 6 states and 1206 transitions. [2024-10-24 15:23:28,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 272 transitions, 721 flow [2024-10-24 15:23:28,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 272 transitions, 720 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:23:28,872 INFO L231 Difference]: Finished difference. Result has 280 places, 272 transitions, 576 flow [2024-10-24 15:23:28,875 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=576, PETRI_PLACES=280, PETRI_TRANSITIONS=272} [2024-10-24 15:23:28,880 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 1 predicate places. [2024-10-24 15:23:28,881 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 272 transitions, 576 flow [2024-10-24 15:23:28,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.33333333333334) internal successors, (1124), 6 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:28,882 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:28,882 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:28,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:23:28,883 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:23:28,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:28,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1092997858, now seen corresponding path program 1 times [2024-10-24 15:23:28,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:28,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198051062] [2024-10-24 15:23:28,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:28,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:29,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:29,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:29,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198051062] [2024-10-24 15:23:29,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198051062] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:29,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:29,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:29,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147046595] [2024-10-24 15:23:29,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:29,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:29,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:29,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:29,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:29,807 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 276 [2024-10-24 15:23:29,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 272 transitions, 576 flow. Second operand has 6 states, 6 states have (on average 187.33333333333334) internal successors, (1124), 6 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:29,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:29,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 276 [2024-10-24 15:23:29,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:30,189 INFO L124 PetriNetUnfolderBase]: 560/2322 cut-off events. [2024-10-24 15:23:30,189 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:23:30,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3549 conditions, 2322 events. 560/2322 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 14859 event pairs, 560 based on Foata normal form. 0/2115 useless extension candidates. Maximal degree in co-relation 3391. Up to 1193 conditions per place. [2024-10-24 15:23:30,199 INFO L140 encePairwiseOnDemand]: 258/276 looper letters, 72 selfloop transitions, 15 changer transitions 0/269 dead transitions. [2024-10-24 15:23:30,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 269 transitions, 744 flow [2024-10-24 15:23:30,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:30,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:30,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1206 transitions. [2024-10-24 15:23:30,203 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7282608695652174 [2024-10-24 15:23:30,203 INFO L175 Difference]: Start difference. First operand has 280 places, 272 transitions, 576 flow. Second operand 6 states and 1206 transitions. [2024-10-24 15:23:30,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 269 transitions, 744 flow [2024-10-24 15:23:30,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 269 transitions, 714 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:23:30,209 INFO L231 Difference]: Finished difference. Result has 277 places, 269 transitions, 570 flow [2024-10-24 15:23:30,209 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=570, PETRI_PLACES=277, PETRI_TRANSITIONS=269} [2024-10-24 15:23:30,210 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, -2 predicate places. [2024-10-24 15:23:30,210 INFO L471 AbstractCegarLoop]: Abstraction has has 277 places, 269 transitions, 570 flow [2024-10-24 15:23:30,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.33333333333334) internal successors, (1124), 6 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:30,211 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:30,211 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:30,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:23:30,212 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:23:30,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:30,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1560868144, now seen corresponding path program 1 times [2024-10-24 15:23:30,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:30,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029475777] [2024-10-24 15:23:30,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:30,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:30,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:30,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:30,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029475777] [2024-10-24 15:23:30,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029475777] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:30,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:30,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:23:30,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743453016] [2024-10-24 15:23:30,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:30,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:23:30,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:30,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:23:30,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:23:30,330 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 276 [2024-10-24 15:23:30,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 269 transitions, 570 flow. Second operand has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:30,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:30,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 276 [2024-10-24 15:23:30,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:30,425 INFO L124 PetriNetUnfolderBase]: 30/718 cut-off events. [2024-10-24 15:23:30,425 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:23:30,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 817 conditions, 718 events. 30/718 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2616 event pairs, 30 based on Foata normal form. 0/643 useless extension candidates. Maximal degree in co-relation 671. Up to 78 conditions per place. [2024-10-24 15:23:30,429 INFO L140 encePairwiseOnDemand]: 273/276 looper letters, 17 selfloop transitions, 2 changer transitions 0/268 dead transitions. [2024-10-24 15:23:30,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 268 transitions, 606 flow [2024-10-24 15:23:30,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:23:30,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:23:30,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 788 transitions. [2024-10-24 15:23:30,431 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9516908212560387 [2024-10-24 15:23:30,432 INFO L175 Difference]: Start difference. First operand has 277 places, 269 transitions, 570 flow. Second operand 3 states and 788 transitions. [2024-10-24 15:23:30,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 268 transitions, 606 flow [2024-10-24 15:23:30,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 268 transitions, 576 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:23:30,436 INFO L231 Difference]: Finished difference. Result has 273 places, 268 transitions, 542 flow [2024-10-24 15:23:30,437 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=542, PETRI_PLACES=273, PETRI_TRANSITIONS=268} [2024-10-24 15:23:30,438 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, -6 predicate places. [2024-10-24 15:23:30,438 INFO L471 AbstractCegarLoop]: Abstraction has has 273 places, 268 transitions, 542 flow [2024-10-24 15:23:30,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:30,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:30,439 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:30,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:23:30,439 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:23:30,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:30,440 INFO L85 PathProgramCache]: Analyzing trace with hash -388730026, now seen corresponding path program 1 times [2024-10-24 15:23:30,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:30,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277521736] [2024-10-24 15:23:30,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:30,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:30,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:30,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:30,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277521736] [2024-10-24 15:23:30,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277521736] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:30,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:30,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:23:30,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894291345] [2024-10-24 15:23:30,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:30,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:23:30,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:30,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:23:30,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:23:30,497 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 276 [2024-10-24 15:23:30,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 268 transitions, 542 flow. Second operand has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:30,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:30,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 276 [2024-10-24 15:23:30,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:30,619 INFO L124 PetriNetUnfolderBase]: 36/750 cut-off events. [2024-10-24 15:23:30,620 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:23:30,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 847 conditions, 750 events. 36/750 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2996 event pairs, 36 based on Foata normal form. 0/681 useless extension candidates. Maximal degree in co-relation 788. Up to 89 conditions per place. [2024-10-24 15:23:30,624 INFO L140 encePairwiseOnDemand]: 271/276 looper letters, 17 selfloop transitions, 1 changer transitions 0/264 dead transitions. [2024-10-24 15:23:30,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 264 transitions, 570 flow [2024-10-24 15:23:30,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:23:30,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:23:30,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 784 transitions. [2024-10-24 15:23:30,626 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9468599033816425 [2024-10-24 15:23:30,626 INFO L175 Difference]: Start difference. First operand has 273 places, 268 transitions, 542 flow. Second operand 3 states and 784 transitions. [2024-10-24 15:23:30,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 264 transitions, 570 flow [2024-10-24 15:23:30,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 264 transitions, 566 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:23:30,631 INFO L231 Difference]: Finished difference. Result has 269 places, 264 transitions, 532 flow [2024-10-24 15:23:30,632 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=532, PETRI_PLACES=269, PETRI_TRANSITIONS=264} [2024-10-24 15:23:30,633 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, -10 predicate places. [2024-10-24 15:23:30,633 INFO L471 AbstractCegarLoop]: Abstraction has has 269 places, 264 transitions, 532 flow [2024-10-24 15:23:30,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:30,634 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:30,634 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:30,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 15:23:30,634 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:23:30,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:30,635 INFO L85 PathProgramCache]: Analyzing trace with hash -744891557, now seen corresponding path program 1 times [2024-10-24 15:23:30,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:30,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621801797] [2024-10-24 15:23:30,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:30,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:31,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:31,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:31,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621801797] [2024-10-24 15:23:31,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621801797] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:31,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:31,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:31,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252806626] [2024-10-24 15:23:31,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:31,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:31,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:31,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:31,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:31,477 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 276 [2024-10-24 15:23:31,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 264 transitions, 532 flow. Second operand has 6 states, 6 states have (on average 189.16666666666666) internal successors, (1135), 6 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:31,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:31,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 276 [2024-10-24 15:23:31,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:31,827 INFO L124 PetriNetUnfolderBase]: 638/2519 cut-off events. [2024-10-24 15:23:31,827 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:23:31,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3891 conditions, 2519 events. 638/2519 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 16283 event pairs, 638 based on Foata normal form. 0/2317 useless extension candidates. Maximal degree in co-relation 3822. Up to 1362 conditions per place. [2024-10-24 15:23:31,840 INFO L140 encePairwiseOnDemand]: 270/276 looper letters, 85 selfloop transitions, 5 changer transitions 0/263 dead transitions. [2024-10-24 15:23:31,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 263 transitions, 710 flow [2024-10-24 15:23:31,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:31,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:31,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1201 transitions. [2024-10-24 15:23:31,844 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7252415458937198 [2024-10-24 15:23:31,844 INFO L175 Difference]: Start difference. First operand has 269 places, 264 transitions, 532 flow. Second operand 6 states and 1201 transitions. [2024-10-24 15:23:31,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 263 transitions, 710 flow [2024-10-24 15:23:31,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 263 transitions, 709 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:23:31,848 INFO L231 Difference]: Finished difference. Result has 272 places, 263 transitions, 539 flow [2024-10-24 15:23:31,849 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=539, PETRI_PLACES=272, PETRI_TRANSITIONS=263} [2024-10-24 15:23:31,849 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, -7 predicate places. [2024-10-24 15:23:31,850 INFO L471 AbstractCegarLoop]: Abstraction has has 272 places, 263 transitions, 539 flow [2024-10-24 15:23:31,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.16666666666666) internal successors, (1135), 6 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:31,851 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:31,851 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:31,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 15:23:31,851 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:23:31,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:31,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1605273385, now seen corresponding path program 1 times [2024-10-24 15:23:31,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:31,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084380520] [2024-10-24 15:23:31,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:31,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:31,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:31,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:31,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084380520] [2024-10-24 15:23:31,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084380520] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:31,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:31,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:23:31,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068119503] [2024-10-24 15:23:31,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:31,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:23:31,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:31,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:23:31,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:23:31,965 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 276 [2024-10-24 15:23:31,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 263 transitions, 539 flow. Second operand has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:31,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:31,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 276 [2024-10-24 15:23:31,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:32,052 INFO L124 PetriNetUnfolderBase]: 30/706 cut-off events. [2024-10-24 15:23:32,053 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:23:32,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 796 conditions, 706 events. 30/706 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2689 event pairs, 30 based on Foata normal form. 0/645 useless extension candidates. Maximal degree in co-relation 737. Up to 78 conditions per place. [2024-10-24 15:23:32,056 INFO L140 encePairwiseOnDemand]: 273/276 looper letters, 17 selfloop transitions, 2 changer transitions 0/262 dead transitions. [2024-10-24 15:23:32,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 262 transitions, 575 flow [2024-10-24 15:23:32,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:23:32,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:23:32,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 788 transitions. [2024-10-24 15:23:32,058 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9516908212560387 [2024-10-24 15:23:32,059 INFO L175 Difference]: Start difference. First operand has 272 places, 263 transitions, 539 flow. Second operand 3 states and 788 transitions. [2024-10-24 15:23:32,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 262 transitions, 575 flow [2024-10-24 15:23:32,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 262 transitions, 565 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:23:32,063 INFO L231 Difference]: Finished difference. Result has 268 places, 262 transitions, 531 flow [2024-10-24 15:23:32,064 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=531, PETRI_PLACES=268, PETRI_TRANSITIONS=262} [2024-10-24 15:23:32,064 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, -11 predicate places. [2024-10-24 15:23:32,064 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 262 transitions, 531 flow [2024-10-24 15:23:32,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:32,065 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:32,065 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:32,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 15:23:32,066 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:23:32,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:32,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1215126668, now seen corresponding path program 1 times [2024-10-24 15:23:32,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:32,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782207461] [2024-10-24 15:23:32,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:32,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:32,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:32,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:32,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782207461] [2024-10-24 15:23:32,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782207461] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:32,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:32,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:23:32,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483134050] [2024-10-24 15:23:32,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:32,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:23:32,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:32,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:23:32,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:23:32,150 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 276 [2024-10-24 15:23:32,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 262 transitions, 531 flow. Second operand has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:32,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:32,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 276 [2024-10-24 15:23:32,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:32,242 INFO L124 PetriNetUnfolderBase]: 36/734 cut-off events. [2024-10-24 15:23:32,242 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:23:32,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 832 conditions, 734 events. 36/734 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2925 event pairs, 36 based on Foata normal form. 0/678 useless extension candidates. Maximal degree in co-relation 774. Up to 89 conditions per place. [2024-10-24 15:23:32,245 INFO L140 encePairwiseOnDemand]: 271/276 looper letters, 17 selfloop transitions, 1 changer transitions 0/258 dead transitions. [2024-10-24 15:23:32,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 258 transitions, 559 flow [2024-10-24 15:23:32,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:23:32,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:23:32,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 784 transitions. [2024-10-24 15:23:32,248 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9468599033816425 [2024-10-24 15:23:32,248 INFO L175 Difference]: Start difference. First operand has 268 places, 262 transitions, 531 flow. Second operand 3 states and 784 transitions. [2024-10-24 15:23:32,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 258 transitions, 559 flow [2024-10-24 15:23:32,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 258 transitions, 555 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:23:32,252 INFO L231 Difference]: Finished difference. Result has 264 places, 258 transitions, 521 flow [2024-10-24 15:23:32,253 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=521, PETRI_PLACES=264, PETRI_TRANSITIONS=258} [2024-10-24 15:23:32,253 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, -15 predicate places. [2024-10-24 15:23:32,254 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 258 transitions, 521 flow [2024-10-24 15:23:32,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:32,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:32,255 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] [2024-10-24 15:23:32,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 15:23:32,255 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:23:32,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:32,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1203165847, now seen corresponding path program 1 times [2024-10-24 15:23:32,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:32,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021982021] [2024-10-24 15:23:32,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:32,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:32,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:32,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:32,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021982021] [2024-10-24 15:23:32,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021982021] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:32,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:32,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:32,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706817534] [2024-10-24 15:23:32,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:32,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:32,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:32,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:32,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:33,238 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 276 [2024-10-24 15:23:33,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 258 transitions, 521 flow. Second operand has 6 states, 6 states have (on average 191.16666666666666) internal successors, (1147), 6 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:33,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:33,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 276 [2024-10-24 15:23:33,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:33,686 INFO L124 PetriNetUnfolderBase]: 638/2428 cut-off events. [2024-10-24 15:23:33,686 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:23:33,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3801 conditions, 2428 events. 638/2428 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 15408 event pairs, 638 based on Foata normal form. 0/2281 useless extension candidates. Maximal degree in co-relation 3733. Up to 1362 conditions per place. [2024-10-24 15:23:33,701 INFO L140 encePairwiseOnDemand]: 270/276 looper letters, 85 selfloop transitions, 5 changer transitions 0/257 dead transitions. [2024-10-24 15:23:33,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 257 transitions, 699 flow [2024-10-24 15:23:33,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:33,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:33,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1201 transitions. [2024-10-24 15:23:33,705 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7252415458937198 [2024-10-24 15:23:33,705 INFO L175 Difference]: Start difference. First operand has 264 places, 258 transitions, 521 flow. Second operand 6 states and 1201 transitions. [2024-10-24 15:23:33,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 257 transitions, 699 flow [2024-10-24 15:23:33,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 257 transitions, 698 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:23:33,710 INFO L231 Difference]: Finished difference. Result has 267 places, 257 transitions, 528 flow [2024-10-24 15:23:33,710 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=528, PETRI_PLACES=267, PETRI_TRANSITIONS=257} [2024-10-24 15:23:33,711 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, -12 predicate places. [2024-10-24 15:23:33,711 INFO L471 AbstractCegarLoop]: Abstraction has has 267 places, 257 transitions, 528 flow [2024-10-24 15:23:33,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 191.16666666666666) internal successors, (1147), 6 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:33,712 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:33,712 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] [2024-10-24 15:23:33,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 15:23:33,713 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:23:33,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:33,713 INFO L85 PathProgramCache]: Analyzing trace with hash -2046601516, now seen corresponding path program 1 times [2024-10-24 15:23:33,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:33,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087780320] [2024-10-24 15:23:33,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:33,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:34,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:34,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:34,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087780320] [2024-10-24 15:23:34,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087780320] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:34,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:34,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:34,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177991442] [2024-10-24 15:23:34,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:34,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:34,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:34,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:34,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:34,740 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 276 [2024-10-24 15:23:34,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 257 transitions, 528 flow. Second operand has 6 states, 6 states have (on average 219.0) internal successors, (1314), 6 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:34,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:34,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 276 [2024-10-24 15:23:34,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:35,134 INFO L124 PetriNetUnfolderBase]: 232/1787 cut-off events. [2024-10-24 15:23:35,134 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:23:35,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2345 conditions, 1787 events. 232/1787 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 11375 event pairs, 20 based on Foata normal form. 0/1663 useless extension candidates. Maximal degree in co-relation 2277. Up to 305 conditions per place. [2024-10-24 15:23:35,142 INFO L140 encePairwiseOnDemand]: 257/276 looper letters, 100 selfloop transitions, 38 changer transitions 0/331 dead transitions. [2024-10-24 15:23:35,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 331 transitions, 952 flow [2024-10-24 15:23:35,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:35,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:35,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1412 transitions. [2024-10-24 15:23:35,146 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8526570048309179 [2024-10-24 15:23:35,146 INFO L175 Difference]: Start difference. First operand has 267 places, 257 transitions, 528 flow. Second operand 6 states and 1412 transitions. [2024-10-24 15:23:35,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 331 transitions, 952 flow [2024-10-24 15:23:35,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 331 transitions, 942 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:23:35,153 INFO L231 Difference]: Finished difference. Result has 271 places, 293 transitions, 776 flow [2024-10-24 15:23:35,154 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=776, PETRI_PLACES=271, PETRI_TRANSITIONS=293} [2024-10-24 15:23:35,155 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, -8 predicate places. [2024-10-24 15:23:35,155 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 293 transitions, 776 flow [2024-10-24 15:23:35,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.0) internal successors, (1314), 6 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:35,156 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:35,156 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] [2024-10-24 15:23:35,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 15:23:35,156 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:23:35,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:35,157 INFO L85 PathProgramCache]: Analyzing trace with hash 893767704, now seen corresponding path program 1 times [2024-10-24 15:23:35,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:35,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114512165] [2024-10-24 15:23:35,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:35,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:35,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:35,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:35,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114512165] [2024-10-24 15:23:35,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114512165] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:35,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:35,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:35,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479800836] [2024-10-24 15:23:35,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:35,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:35,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:35,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:35,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:36,196 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 276 [2024-10-24 15:23:36,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 293 transitions, 776 flow. Second operand has 6 states, 6 states have (on average 224.66666666666666) internal successors, (1348), 6 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:36,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:36,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 276 [2024-10-24 15:23:36,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:36,472 INFO L124 PetriNetUnfolderBase]: 185/1591 cut-off events. [2024-10-24 15:23:36,472 INFO L125 PetriNetUnfolderBase]: For 206/211 co-relation queries the response was YES. [2024-10-24 15:23:36,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2363 conditions, 1591 events. 185/1591 cut-off events. For 206/211 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9959 event pairs, 75 based on Foata normal form. 0/1471 useless extension candidates. Maximal degree in co-relation 2293. Up to 354 conditions per place. [2024-10-24 15:23:36,482 INFO L140 encePairwiseOnDemand]: 270/276 looper letters, 96 selfloop transitions, 5 changer transitions 0/308 dead transitions. [2024-10-24 15:23:36,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 308 transitions, 1008 flow [2024-10-24 15:23:36,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:36,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:36,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1382 transitions. [2024-10-24 15:23:36,485 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8345410628019324 [2024-10-24 15:23:36,485 INFO L175 Difference]: Start difference. First operand has 271 places, 293 transitions, 776 flow. Second operand 6 states and 1382 transitions. [2024-10-24 15:23:36,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 308 transitions, 1008 flow [2024-10-24 15:23:36,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 308 transitions, 1008 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:23:36,496 INFO L231 Difference]: Finished difference. Result has 275 places, 292 transitions, 784 flow [2024-10-24 15:23:36,497 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=784, PETRI_PLACES=275, PETRI_TRANSITIONS=292} [2024-10-24 15:23:36,498 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, -4 predicate places. [2024-10-24 15:23:36,499 INFO L471 AbstractCegarLoop]: Abstraction has has 275 places, 292 transitions, 784 flow [2024-10-24 15:23:36,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 224.66666666666666) internal successors, (1348), 6 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:36,500 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:36,500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:36,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 15:23:36,500 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:23:36,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:36,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1777114751, now seen corresponding path program 1 times [2024-10-24 15:23:36,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:36,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075956277] [2024-10-24 15:23:36,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:36,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:37,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:37,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:37,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075956277] [2024-10-24 15:23:37,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075956277] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:37,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:37,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:37,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686356238] [2024-10-24 15:23:37,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:37,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:37,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:37,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:37,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:37,676 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 276 [2024-10-24 15:23:37,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 292 transitions, 784 flow. Second operand has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:37,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:37,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 276 [2024-10-24 15:23:37,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:38,181 INFO L124 PetriNetUnfolderBase]: 583/2948 cut-off events. [2024-10-24 15:23:38,182 INFO L125 PetriNetUnfolderBase]: For 706/713 co-relation queries the response was YES. [2024-10-24 15:23:38,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5026 conditions, 2948 events. 583/2948 cut-off events. For 706/713 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 21807 event pairs, 69 based on Foata normal form. 0/2761 useless extension candidates. Maximal degree in co-relation 4953. Up to 795 conditions per place. [2024-10-24 15:23:38,196 INFO L140 encePairwiseOnDemand]: 254/276 looper letters, 111 selfloop transitions, 72 changer transitions 0/381 dead transitions. [2024-10-24 15:23:38,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 381 transitions, 1520 flow [2024-10-24 15:23:38,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:38,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:38,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1389 transitions. [2024-10-24 15:23:38,201 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8387681159420289 [2024-10-24 15:23:38,201 INFO L175 Difference]: Start difference. First operand has 275 places, 292 transitions, 784 flow. Second operand 6 states and 1389 transitions. [2024-10-24 15:23:38,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 381 transitions, 1520 flow [2024-10-24 15:23:38,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 381 transitions, 1502 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:23:38,212 INFO L231 Difference]: Finished difference. Result has 280 places, 362 transitions, 1440 flow [2024-10-24 15:23:38,213 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1440, PETRI_PLACES=280, PETRI_TRANSITIONS=362} [2024-10-24 15:23:38,214 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 1 predicate places. [2024-10-24 15:23:38,214 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 362 transitions, 1440 flow [2024-10-24 15:23:38,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:38,215 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:38,216 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:38,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 15:23:38,216 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:23:38,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:38,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1489313437, now seen corresponding path program 1 times [2024-10-24 15:23:38,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:38,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470472397] [2024-10-24 15:23:38,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:38,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:38,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:38,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:38,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470472397] [2024-10-24 15:23:38,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470472397] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:38,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:38,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:38,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968643554] [2024-10-24 15:23:38,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:38,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:38,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:38,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:38,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:39,039 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 276 [2024-10-24 15:23:39,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 362 transitions, 1440 flow. Second operand has 6 states, 6 states have (on average 196.33333333333334) internal successors, (1178), 6 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:39,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:39,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 276 [2024-10-24 15:23:39,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:39,983 INFO L124 PetriNetUnfolderBase]: 1657/5695 cut-off events. [2024-10-24 15:23:39,983 INFO L125 PetriNetUnfolderBase]: For 3355/3415 co-relation queries the response was YES. [2024-10-24 15:23:39,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12784 conditions, 5695 events. 1657/5695 cut-off events. For 3355/3415 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 45929 event pairs, 861 based on Foata normal form. 0/5366 useless extension candidates. Maximal degree in co-relation 12709. Up to 3147 conditions per place. [2024-10-24 15:23:40,018 INFO L140 encePairwiseOnDemand]: 253/276 looper letters, 201 selfloop transitions, 89 changer transitions 0/462 dead transitions. [2024-10-24 15:23:40,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 462 transitions, 2424 flow [2024-10-24 15:23:40,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:40,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:40,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1302 transitions. [2024-10-24 15:23:40,022 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7862318840579711 [2024-10-24 15:23:40,022 INFO L175 Difference]: Start difference. First operand has 280 places, 362 transitions, 1440 flow. Second operand 6 states and 1302 transitions. [2024-10-24 15:23:40,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 462 transitions, 2424 flow [2024-10-24 15:23:40,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 462 transitions, 2424 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:23:40,121 INFO L231 Difference]: Finished difference. Result has 290 places, 446 transitions, 2242 flow [2024-10-24 15:23:40,122 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=1440, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2242, PETRI_PLACES=290, PETRI_TRANSITIONS=446} [2024-10-24 15:23:40,122 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 11 predicate places. [2024-10-24 15:23:40,122 INFO L471 AbstractCegarLoop]: Abstraction has has 290 places, 446 transitions, 2242 flow [2024-10-24 15:23:40,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 196.33333333333334) internal successors, (1178), 6 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:40,123 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:40,123 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:40,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 15:23:40,124 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:23:40,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:40,124 INFO L85 PathProgramCache]: Analyzing trace with hash 106924031, now seen corresponding path program 1 times [2024-10-24 15:23:40,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:40,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210726907] [2024-10-24 15:23:40,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:40,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:40,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:40,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:40,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:40,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210726907] [2024-10-24 15:23:40,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210726907] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:40,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:40,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:23:40,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774270561] [2024-10-24 15:23:40,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:40,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:23:40,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:40,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:23:40,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:23:40,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 276 [2024-10-24 15:23:40,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 446 transitions, 2242 flow. Second operand has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:40,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:40,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 276 [2024-10-24 15:23:40,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:40,713 INFO L124 PetriNetUnfolderBase]: 315/1970 cut-off events. [2024-10-24 15:23:40,713 INFO L125 PetriNetUnfolderBase]: For 1136/1199 co-relation queries the response was YES. [2024-10-24 15:23:40,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4120 conditions, 1970 events. 315/1970 cut-off events. For 1136/1199 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 13471 event pairs, 31 based on Foata normal form. 4/1894 useless extension candidates. Maximal degree in co-relation 4047. Up to 312 conditions per place. [2024-10-24 15:23:40,723 INFO L140 encePairwiseOnDemand]: 270/276 looper letters, 10 selfloop transitions, 6 changer transitions 0/386 dead transitions. [2024-10-24 15:23:40,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 386 transitions, 1710 flow [2024-10-24 15:23:40,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:23:40,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:23:40,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 816 transitions. [2024-10-24 15:23:40,726 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9855072463768116 [2024-10-24 15:23:40,726 INFO L175 Difference]: Start difference. First operand has 290 places, 446 transitions, 2242 flow. Second operand 3 states and 816 transitions. [2024-10-24 15:23:40,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 386 transitions, 1710 flow [2024-10-24 15:23:40,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 386 transitions, 1622 flow, removed 44 selfloop flow, removed 0 redundant places. [2024-10-24 15:23:40,741 INFO L231 Difference]: Finished difference. Result has 293 places, 384 transitions, 1612 flow [2024-10-24 15:23:40,741 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=1578, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1612, PETRI_PLACES=293, PETRI_TRANSITIONS=384} [2024-10-24 15:23:40,742 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 14 predicate places. [2024-10-24 15:23:40,742 INFO L471 AbstractCegarLoop]: Abstraction has has 293 places, 384 transitions, 1612 flow [2024-10-24 15:23:40,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:40,743 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:40,743 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:40,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 15:23:40,743 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:23:40,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:40,744 INFO L85 PathProgramCache]: Analyzing trace with hash 735522291, now seen corresponding path program 1 times [2024-10-24 15:23:40,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:40,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884569805] [2024-10-24 15:23:40,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:40,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:41,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:41,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:41,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884569805] [2024-10-24 15:23:41,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884569805] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:41,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:41,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:41,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869791654] [2024-10-24 15:23:41,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:41,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:41,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:41,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:41,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:41,756 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 276 [2024-10-24 15:23:41,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 384 transitions, 1612 flow. Second operand has 6 states, 6 states have (on average 219.33333333333334) internal successors, (1316), 6 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:41,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:41,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 276 [2024-10-24 15:23:41,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:42,256 INFO L124 PetriNetUnfolderBase]: 690/3113 cut-off events. [2024-10-24 15:23:42,256 INFO L125 PetriNetUnfolderBase]: For 3020/3221 co-relation queries the response was YES. [2024-10-24 15:23:42,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7440 conditions, 3113 events. 690/3113 cut-off events. For 3020/3221 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 23921 event pairs, 54 based on Foata normal form. 20/3022 useless extension candidates. Maximal degree in co-relation 7357. Up to 734 conditions per place. [2024-10-24 15:23:42,271 INFO L140 encePairwiseOnDemand]: 257/276 looper letters, 184 selfloop transitions, 124 changer transitions 4/542 dead transitions. [2024-10-24 15:23:42,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 542 transitions, 3203 flow [2024-10-24 15:23:42,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:42,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:42,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1430 transitions. [2024-10-24 15:23:42,276 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8635265700483091 [2024-10-24 15:23:42,276 INFO L175 Difference]: Start difference. First operand has 293 places, 384 transitions, 1612 flow. Second operand 6 states and 1430 transitions. [2024-10-24 15:23:42,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 542 transitions, 3203 flow [2024-10-24 15:23:42,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 542 transitions, 3180 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:23:42,294 INFO L231 Difference]: Finished difference. Result has 301 places, 486 transitions, 2988 flow [2024-10-24 15:23:42,295 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=1604, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2988, PETRI_PLACES=301, PETRI_TRANSITIONS=486} [2024-10-24 15:23:42,295 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 22 predicate places. [2024-10-24 15:23:42,295 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 486 transitions, 2988 flow [2024-10-24 15:23:42,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.33333333333334) internal successors, (1316), 6 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:42,296 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:42,296 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:42,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 15:23:42,296 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:23:42,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:42,297 INFO L85 PathProgramCache]: Analyzing trace with hash 347820555, now seen corresponding path program 1 times [2024-10-24 15:23:42,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:42,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579305041] [2024-10-24 15:23:42,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:42,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:42,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:42,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:42,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579305041] [2024-10-24 15:23:42,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579305041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:42,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:42,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:42,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831849656] [2024-10-24 15:23:42,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:42,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:42,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:42,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:42,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:43,321 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 276 [2024-10-24 15:23:43,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 486 transitions, 2988 flow. Second operand has 6 states, 6 states have (on average 225.66666666666666) internal successors, (1354), 6 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:43,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:43,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 276 [2024-10-24 15:23:43,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:43,868 INFO L124 PetriNetUnfolderBase]: 605/2890 cut-off events. [2024-10-24 15:23:43,868 INFO L125 PetriNetUnfolderBase]: For 5479/5694 co-relation queries the response was YES. [2024-10-24 15:23:43,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7823 conditions, 2890 events. 605/2890 cut-off events. For 5479/5694 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 21929 event pairs, 92 based on Foata normal form. 18/2852 useless extension candidates. Maximal degree in co-relation 7737. Up to 803 conditions per place. [2024-10-24 15:23:43,887 INFO L140 encePairwiseOnDemand]: 270/276 looper letters, 218 selfloop transitions, 17 changer transitions 0/501 dead transitions. [2024-10-24 15:23:43,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 501 transitions, 3512 flow [2024-10-24 15:23:43,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:43,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:43,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1382 transitions. [2024-10-24 15:23:43,891 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8345410628019324 [2024-10-24 15:23:43,891 INFO L175 Difference]: Start difference. First operand has 301 places, 486 transitions, 2988 flow. Second operand 6 states and 1382 transitions. [2024-10-24 15:23:43,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 501 transitions, 3512 flow [2024-10-24 15:23:43,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 501 transitions, 3494 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-24 15:23:43,914 INFO L231 Difference]: Finished difference. Result has 305 places, 485 transitions, 3002 flow [2024-10-24 15:23:43,915 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=2968, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=485, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3002, PETRI_PLACES=305, PETRI_TRANSITIONS=485} [2024-10-24 15:23:43,916 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 26 predicate places. [2024-10-24 15:23:43,916 INFO L471 AbstractCegarLoop]: Abstraction has has 305 places, 485 transitions, 3002 flow [2024-10-24 15:23:43,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 225.66666666666666) internal successors, (1354), 6 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:43,917 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:43,917 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:43,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 15:23:43,917 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:23:43,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:43,918 INFO L85 PathProgramCache]: Analyzing trace with hash 982429328, now seen corresponding path program 1 times [2024-10-24 15:23:43,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:43,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96787401] [2024-10-24 15:23:43,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:43,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:44,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:44,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:44,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96787401] [2024-10-24 15:23:44,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96787401] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:44,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:44,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:23:44,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493582451] [2024-10-24 15:23:44,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:44,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:23:44,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:44,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:23:44,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:23:44,713 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 276 [2024-10-24 15:23:44,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 485 transitions, 3002 flow. Second operand has 6 states, 6 states have (on average 198.66666666666666) internal successors, (1192), 6 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:44,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:44,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 276 [2024-10-24 15:23:44,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:45,469 INFO L124 PetriNetUnfolderBase]: 1547/5161 cut-off events. [2024-10-24 15:23:45,470 INFO L125 PetriNetUnfolderBase]: For 7543/7624 co-relation queries the response was YES. [2024-10-24 15:23:45,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15138 conditions, 5161 events. 1547/5161 cut-off events. For 7543/7624 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 41358 event pairs, 582 based on Foata normal form. 1/5009 useless extension candidates. Maximal degree in co-relation 15051. Up to 2881 conditions per place. [2024-10-24 15:23:45,505 INFO L140 encePairwiseOnDemand]: 253/276 looper letters, 304 selfloop transitions, 103 changer transitions 8/591 dead transitions. [2024-10-24 15:23:45,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 591 transitions, 4442 flow [2024-10-24 15:23:45,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:23:45,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:23:45,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1302 transitions. [2024-10-24 15:23:45,509 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7862318840579711 [2024-10-24 15:23:45,509 INFO L175 Difference]: Start difference. First operand has 305 places, 485 transitions, 3002 flow. Second operand 6 states and 1302 transitions. [2024-10-24 15:23:45,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 591 transitions, 4442 flow [2024-10-24 15:23:45,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 591 transitions, 4408 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:23:45,545 INFO L231 Difference]: Finished difference. Result has 310 places, 571 transitions, 3986 flow [2024-10-24 15:23:45,546 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=2968, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=485, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3986, PETRI_PLACES=310, PETRI_TRANSITIONS=571} [2024-10-24 15:23:45,547 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 31 predicate places. [2024-10-24 15:23:45,547 INFO L471 AbstractCegarLoop]: Abstraction has has 310 places, 571 transitions, 3986 flow [2024-10-24 15:23:45,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 198.66666666666666) internal successors, (1192), 6 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:45,548 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:45,548 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:45,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 15:23:45,548 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:23:45,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:45,549 INFO L85 PathProgramCache]: Analyzing trace with hash 828551593, now seen corresponding path program 1 times [2024-10-24 15:23:45,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:45,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570041045] [2024-10-24 15:23:45,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:45,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:47,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:47,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:47,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570041045] [2024-10-24 15:23:47,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570041045] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:47,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:47,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-24 15:23:47,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051213549] [2024-10-24 15:23:47,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:47,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-24 15:23:47,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:47,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-24 15:23:47,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-10-24 15:23:50,475 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 276 [2024-10-24 15:23:50,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 571 transitions, 3986 flow. Second operand has 20 states, 20 states have (on average 151.15) internal successors, (3023), 20 states have internal predecessors, (3023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:50,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:50,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 276 [2024-10-24 15:23:50,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:52,497 INFO L124 PetriNetUnfolderBase]: 1717/5670 cut-off events. [2024-10-24 15:23:52,497 INFO L125 PetriNetUnfolderBase]: For 11266/11335 co-relation queries the response was YES. [2024-10-24 15:23:52,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18569 conditions, 5670 events. 1717/5670 cut-off events. For 11266/11335 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 46232 event pairs, 195 based on Foata normal form. 19/5643 useless extension candidates. Maximal degree in co-relation 18462. Up to 1900 conditions per place. [2024-10-24 15:23:52,534 INFO L140 encePairwiseOnDemand]: 245/276 looper letters, 529 selfloop transitions, 101 changer transitions 23/785 dead transitions. [2024-10-24 15:23:52,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 785 transitions, 6962 flow [2024-10-24 15:23:52,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-24 15:23:52,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-10-24 15:23:52,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4364 transitions. [2024-10-24 15:23:52,545 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5646997929606625 [2024-10-24 15:23:52,545 INFO L175 Difference]: Start difference. First operand has 310 places, 571 transitions, 3986 flow. Second operand 28 states and 4364 transitions. [2024-10-24 15:23:52,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 785 transitions, 6962 flow [2024-10-24 15:23:52,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 785 transitions, 6758 flow, removed 102 selfloop flow, removed 0 redundant places. [2024-10-24 15:23:52,613 INFO L231 Difference]: Finished difference. Result has 347 places, 604 transitions, 4436 flow [2024-10-24 15:23:52,614 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=3838, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=571, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=4436, PETRI_PLACES=347, PETRI_TRANSITIONS=604} [2024-10-24 15:23:52,614 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 68 predicate places. [2024-10-24 15:23:52,615 INFO L471 AbstractCegarLoop]: Abstraction has has 347 places, 604 transitions, 4436 flow [2024-10-24 15:23:52,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 151.15) internal successors, (3023), 20 states have internal predecessors, (3023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:52,616 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:52,616 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:52,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 15:23:52,616 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:23:52,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:52,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1784194913, now seen corresponding path program 1 times [2024-10-24 15:23:52,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:52,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142311808] [2024-10-24 15:23:52,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:52,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:54,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:54,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:54,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142311808] [2024-10-24 15:23:54,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142311808] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:54,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:54,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-24 15:23:54,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107144492] [2024-10-24 15:23:54,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:54,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 15:23:54,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:54,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 15:23:54,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-10-24 15:23:57,051 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 276 [2024-10-24 15:23:57,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 604 transitions, 4436 flow. Second operand has 18 states, 18 states have (on average 176.66666666666666) internal successors, (3180), 18 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:57,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:23:57,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 276 [2024-10-24 15:23:57,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:23:58,289 INFO L124 PetriNetUnfolderBase]: 1405/5296 cut-off events. [2024-10-24 15:23:58,289 INFO L125 PetriNetUnfolderBase]: For 13203/13390 co-relation queries the response was YES. [2024-10-24 15:23:58,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17949 conditions, 5296 events. 1405/5296 cut-off events. For 13203/13390 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 45108 event pairs, 151 based on Foata normal form. 27/5269 useless extension candidates. Maximal degree in co-relation 17825. Up to 1437 conditions per place. [2024-10-24 15:23:58,325 INFO L140 encePairwiseOnDemand]: 243/276 looper letters, 400 selfloop transitions, 123 changer transitions 8/777 dead transitions. [2024-10-24 15:23:58,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 777 transitions, 7003 flow [2024-10-24 15:23:58,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-24 15:23:58,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-10-24 15:23:58,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4148 transitions. [2024-10-24 15:23:58,332 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6534341524889729 [2024-10-24 15:23:58,332 INFO L175 Difference]: Start difference. First operand has 347 places, 604 transitions, 4436 flow. Second operand 23 states and 4148 transitions. [2024-10-24 15:23:58,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 777 transitions, 7003 flow [2024-10-24 15:23:58,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 777 transitions, 6879 flow, removed 51 selfloop flow, removed 10 redundant places. [2024-10-24 15:23:58,420 INFO L231 Difference]: Finished difference. Result has 367 places, 668 transitions, 5598 flow [2024-10-24 15:23:58,420 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=4354, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=604, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=5598, PETRI_PLACES=367, PETRI_TRANSITIONS=668} [2024-10-24 15:23:58,421 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 88 predicate places. [2024-10-24 15:23:58,422 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 668 transitions, 5598 flow [2024-10-24 15:23:58,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 176.66666666666666) internal successors, (3180), 18 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:23:58,424 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:23:58,424 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:23:58,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 15:23:58,424 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:23:58,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:23:58,425 INFO L85 PathProgramCache]: Analyzing trace with hash -93022475, now seen corresponding path program 2 times [2024-10-24 15:23:58,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:23:58,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015062115] [2024-10-24 15:23:58,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:23:58,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:23:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:23:59,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:23:59,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:23:59,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015062115] [2024-10-24 15:23:59,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015062115] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:23:59,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:23:59,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-24 15:23:59,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861659595] [2024-10-24 15:23:59,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:23:59,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 15:23:59,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:23:59,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 15:23:59,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-10-24 15:24:02,768 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 276 [2024-10-24 15:24:02,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 668 transitions, 5598 flow. Second operand has 18 states, 18 states have (on average 176.66666666666666) internal successors, (3180), 18 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:24:02,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:02,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 276 [2024-10-24 15:24:02,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:04,279 INFO L124 PetriNetUnfolderBase]: 1464/5468 cut-off events. [2024-10-24 15:24:04,279 INFO L125 PetriNetUnfolderBase]: For 17844/18075 co-relation queries the response was YES. [2024-10-24 15:24:04,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19599 conditions, 5468 events. 1464/5468 cut-off events. For 17844/18075 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 46603 event pairs, 150 based on Foata normal form. 60/5476 useless extension candidates. Maximal degree in co-relation 19465. Up to 1048 conditions per place. [2024-10-24 15:24:04,329 INFO L140 encePairwiseOnDemand]: 247/276 looper letters, 420 selfloop transitions, 151 changer transitions 8/825 dead transitions. [2024-10-24 15:24:04,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 825 transitions, 8087 flow [2024-10-24 15:24:04,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-24 15:24:04,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-24 15:24:04,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 5374 transitions. [2024-10-24 15:24:04,336 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6490338164251208 [2024-10-24 15:24:04,336 INFO L175 Difference]: Start difference. First operand has 367 places, 668 transitions, 5598 flow. Second operand 30 states and 5374 transitions. [2024-10-24 15:24:04,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 825 transitions, 8087 flow [2024-10-24 15:24:04,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 825 transitions, 8000 flow, removed 23 selfloop flow, removed 11 redundant places. [2024-10-24 15:24:04,438 INFO L231 Difference]: Finished difference. Result has 396 places, 724 transitions, 6625 flow [2024-10-24 15:24:04,439 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=5548, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=668, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=6625, PETRI_PLACES=396, PETRI_TRANSITIONS=724} [2024-10-24 15:24:04,439 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 117 predicate places. [2024-10-24 15:24:04,440 INFO L471 AbstractCegarLoop]: Abstraction has has 396 places, 724 transitions, 6625 flow [2024-10-24 15:24:04,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 176.66666666666666) internal successors, (3180), 18 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:24:04,441 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:04,441 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:24:04,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 15:24:04,442 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:24:04,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:04,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1974530083, now seen corresponding path program 3 times [2024-10-24 15:24:04,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:04,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881503387] [2024-10-24 15:24:04,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:04,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:05,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:24:05,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:05,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881503387] [2024-10-24 15:24:05,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881503387] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:05,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:05,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-24 15:24:05,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513285066] [2024-10-24 15:24:05,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:05,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 15:24:05,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:05,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 15:24:05,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-10-24 15:24:08,708 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 276 [2024-10-24 15:24:08,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 724 transitions, 6625 flow. Second operand has 18 states, 18 states have (on average 176.66666666666666) internal successors, (3180), 18 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:24:08,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:08,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 276 [2024-10-24 15:24:08,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:10,264 INFO L124 PetriNetUnfolderBase]: 1691/6200 cut-off events. [2024-10-24 15:24:10,264 INFO L125 PetriNetUnfolderBase]: For 27520/27916 co-relation queries the response was YES. [2024-10-24 15:24:10,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23876 conditions, 6200 events. 1691/6200 cut-off events. For 27520/27916 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 55049 event pairs, 178 based on Foata normal form. 97/6230 useless extension candidates. Maximal degree in co-relation 23730. Up to 1514 conditions per place. [2024-10-24 15:24:10,349 INFO L140 encePairwiseOnDemand]: 243/276 looper letters, 483 selfloop transitions, 161 changer transitions 8/898 dead transitions. [2024-10-24 15:24:10,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 898 transitions, 9741 flow [2024-10-24 15:24:10,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-24 15:24:10,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-10-24 15:24:10,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 4500 transitions. [2024-10-24 15:24:10,355 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6521739130434783 [2024-10-24 15:24:10,355 INFO L175 Difference]: Start difference. First operand has 396 places, 724 transitions, 6625 flow. Second operand 25 states and 4500 transitions. [2024-10-24 15:24:10,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 898 transitions, 9741 flow [2024-10-24 15:24:10,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 898 transitions, 9655 flow, removed 21 selfloop flow, removed 13 redundant places. [2024-10-24 15:24:10,476 INFO L231 Difference]: Finished difference. Result has 412 places, 785 transitions, 8136 flow [2024-10-24 15:24:10,477 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=6541, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=724, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=569, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=8136, PETRI_PLACES=412, PETRI_TRANSITIONS=785} [2024-10-24 15:24:10,478 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 133 predicate places. [2024-10-24 15:24:10,478 INFO L471 AbstractCegarLoop]: Abstraction has has 412 places, 785 transitions, 8136 flow [2024-10-24 15:24:10,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 176.66666666666666) internal successors, (3180), 18 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:24:10,479 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:10,479 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:24:10,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 15:24:10,479 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:24:10,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:10,480 INFO L85 PathProgramCache]: Analyzing trace with hash 564269631, now seen corresponding path program 4 times [2024-10-24 15:24:10,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:10,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678484994] [2024-10-24 15:24:10,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:10,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:11,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:24:11,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:11,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678484994] [2024-10-24 15:24:11,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678484994] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:11,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:11,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-24 15:24:11,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193842717] [2024-10-24 15:24:11,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:11,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 15:24:11,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:11,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 15:24:11,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-10-24 15:24:15,005 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 276 [2024-10-24 15:24:15,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 785 transitions, 8136 flow. Second operand has 18 states, 18 states have (on average 176.66666666666666) internal successors, (3180), 18 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:24:15,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:15,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 276 [2024-10-24 15:24:15,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:16,947 INFO L124 PetriNetUnfolderBase]: 1930/7012 cut-off events. [2024-10-24 15:24:16,947 INFO L125 PetriNetUnfolderBase]: For 40860/41269 co-relation queries the response was YES. [2024-10-24 15:24:16,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28420 conditions, 7012 events. 1930/7012 cut-off events. For 40860/41269 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 64546 event pairs, 209 based on Foata normal form. 88/7025 useless extension candidates. Maximal degree in co-relation 28268. Up to 1461 conditions per place. [2024-10-24 15:24:17,006 INFO L140 encePairwiseOnDemand]: 243/276 looper letters, 537 selfloop transitions, 209 changer transitions 8/1000 dead transitions. [2024-10-24 15:24:17,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 1000 transitions, 12266 flow [2024-10-24 15:24:17,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-24 15:24:17,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-10-24 15:24:17,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4861 transitions. [2024-10-24 15:24:17,011 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6523081052066559 [2024-10-24 15:24:17,011 INFO L175 Difference]: Start difference. First operand has 412 places, 785 transitions, 8136 flow. Second operand 27 states and 4861 transitions. [2024-10-24 15:24:17,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 1000 transitions, 12266 flow [2024-10-24 15:24:17,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 1000 transitions, 12168 flow, removed 10 selfloop flow, removed 17 redundant places. [2024-10-24 15:24:17,157 INFO L231 Difference]: Finished difference. Result has 431 places, 864 transitions, 10297 flow [2024-10-24 15:24:17,158 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=8048, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=785, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=588, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=10297, PETRI_PLACES=431, PETRI_TRANSITIONS=864} [2024-10-24 15:24:17,158 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 152 predicate places. [2024-10-24 15:24:17,158 INFO L471 AbstractCegarLoop]: Abstraction has has 431 places, 864 transitions, 10297 flow [2024-10-24 15:24:17,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 176.66666666666666) internal successors, (3180), 18 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:24:17,160 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:17,160 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:24:17,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 15:24:17,160 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:24:17,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:17,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1501794779, now seen corresponding path program 5 times [2024-10-24 15:24:17,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:17,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221030568] [2024-10-24 15:24:17,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:17,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:18,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:24:18,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:18,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221030568] [2024-10-24 15:24:18,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221030568] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:18,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:18,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-24 15:24:18,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345206416] [2024-10-24 15:24:18,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:18,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 15:24:18,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:18,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 15:24:18,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-10-24 15:24:22,237 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 276 [2024-10-24 15:24:22,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 864 transitions, 10297 flow. Second operand has 18 states, 18 states have (on average 176.66666666666666) internal successors, (3180), 18 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:24:22,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:22,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 276 [2024-10-24 15:24:22,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:24,261 INFO L124 PetriNetUnfolderBase]: 2130/7703 cut-off events. [2024-10-24 15:24:24,262 INFO L125 PetriNetUnfolderBase]: For 58158/58639 co-relation queries the response was YES. [2024-10-24 15:24:24,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32872 conditions, 7703 events. 2130/7703 cut-off events. For 58158/58639 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 73110 event pairs, 231 based on Foata normal form. 110/7728 useless extension candidates. Maximal degree in co-relation 32709. Up to 1793 conditions per place. [2024-10-24 15:24:24,355 INFO L140 encePairwiseOnDemand]: 243/276 looper letters, 548 selfloop transitions, 246 changer transitions 8/1048 dead transitions. [2024-10-24 15:24:24,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 1048 transitions, 14288 flow [2024-10-24 15:24:24,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-24 15:24:24,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-10-24 15:24:24,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 4681 transitions. [2024-10-24 15:24:24,358 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6523132664437012 [2024-10-24 15:24:24,358 INFO L175 Difference]: Start difference. First operand has 431 places, 864 transitions, 10297 flow. Second operand 26 states and 4681 transitions. [2024-10-24 15:24:24,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 1048 transitions, 14288 flow [2024-10-24 15:24:24,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 1048 transitions, 14164 flow, removed 38 selfloop flow, removed 14 redundant places. [2024-10-24 15:24:24,569 INFO L231 Difference]: Finished difference. Result has 450 places, 923 transitions, 12442 flow [2024-10-24 15:24:24,569 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=10173, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=864, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=188, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=623, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=12442, PETRI_PLACES=450, PETRI_TRANSITIONS=923} [2024-10-24 15:24:24,570 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 171 predicate places. [2024-10-24 15:24:24,570 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 923 transitions, 12442 flow [2024-10-24 15:24:24,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 176.66666666666666) internal successors, (3180), 18 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:24:24,571 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:24,571 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:24:24,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 15:24:24,571 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:24:24,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:24,571 INFO L85 PathProgramCache]: Analyzing trace with hash 636169732, now seen corresponding path program 1 times [2024-10-24 15:24:24,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:24,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215664627] [2024-10-24 15:24:24,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:24,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:25,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:24:25,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:25,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215664627] [2024-10-24 15:24:25,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215664627] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:25,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:25,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-24 15:24:25,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564422534] [2024-10-24 15:24:25,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:25,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-24 15:24:25,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:25,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-24 15:24:25,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-10-24 15:24:28,876 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 276 [2024-10-24 15:24:28,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 923 transitions, 12442 flow. Second operand has 20 states, 20 states have (on average 176.5) internal successors, (3530), 20 states have internal predecessors, (3530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:24:28,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:28,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 276 [2024-10-24 15:24:28,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:31,262 INFO L124 PetriNetUnfolderBase]: 2155/7718 cut-off events. [2024-10-24 15:24:31,262 INFO L125 PetriNetUnfolderBase]: For 72961/73433 co-relation queries the response was YES. [2024-10-24 15:24:31,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34540 conditions, 7718 events. 2155/7718 cut-off events. For 72961/73433 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 73161 event pairs, 254 based on Foata normal form. 91/7721 useless extension candidates. Maximal degree in co-relation 34368. Up to 1159 conditions per place. [2024-10-24 15:24:31,323 INFO L140 encePairwiseOnDemand]: 242/276 looper letters, 551 selfloop transitions, 228 changer transitions 8/1033 dead transitions. [2024-10-24 15:24:31,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 1033 transitions, 15063 flow [2024-10-24 15:24:31,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-10-24 15:24:31,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2024-10-24 15:24:31,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 5895 transitions. [2024-10-24 15:24:31,328 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6472332015810277 [2024-10-24 15:24:31,328 INFO L175 Difference]: Start difference. First operand has 450 places, 923 transitions, 12442 flow. Second operand 33 states and 5895 transitions. [2024-10-24 15:24:31,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 1033 transitions, 15063 flow [2024-10-24 15:24:31,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 1033 transitions, 14928 flow, removed 40 selfloop flow, removed 15 redundant places. [2024-10-24 15:24:31,567 INFO L231 Difference]: Finished difference. Result has 470 places, 932 transitions, 13174 flow [2024-10-24 15:24:31,568 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=12307, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=923, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=219, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=695, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=13174, PETRI_PLACES=470, PETRI_TRANSITIONS=932} [2024-10-24 15:24:31,568 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 191 predicate places. [2024-10-24 15:24:31,568 INFO L471 AbstractCegarLoop]: Abstraction has has 470 places, 932 transitions, 13174 flow [2024-10-24 15:24:31,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 176.5) internal successors, (3530), 20 states have internal predecessors, (3530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:24:31,569 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:31,569 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:24:31,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 15:24:31,569 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:24:31,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:31,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1156988090, now seen corresponding path program 2 times [2024-10-24 15:24:31,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:31,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435492189] [2024-10-24 15:24:31,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:31,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:32,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:24:32,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:32,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435492189] [2024-10-24 15:24:32,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435492189] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:32,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:32,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-10-24 15:24:32,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995452375] [2024-10-24 15:24:32,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:32,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-24 15:24:32,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:32,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-24 15:24:32,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-10-24 15:24:35,330 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 276 [2024-10-24 15:24:35,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 932 transitions, 13174 flow. Second operand has 20 states, 20 states have (on average 174.55) internal successors, (3491), 20 states have internal predecessors, (3491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:24:35,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:24:35,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 276 [2024-10-24 15:24:35,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:24:37,893 INFO L124 PetriNetUnfolderBase]: 2207/7883 cut-off events. [2024-10-24 15:24:37,893 INFO L125 PetriNetUnfolderBase]: For 88988/89500 co-relation queries the response was YES. [2024-10-24 15:24:37,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36675 conditions, 7883 events. 2207/7883 cut-off events. For 88988/89500 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 74827 event pairs, 238 based on Foata normal form. 141/7933 useless extension candidates. Maximal degree in co-relation 36495. Up to 1173 conditions per place. [2024-10-24 15:24:37,975 INFO L140 encePairwiseOnDemand]: 242/276 looper letters, 623 selfloop transitions, 250 changer transitions 12/1127 dead transitions. [2024-10-24 15:24:37,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 502 places, 1127 transitions, 17031 flow [2024-10-24 15:24:37,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-10-24 15:24:37,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2024-10-24 15:24:37,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 5867 transitions. [2024-10-24 15:24:37,981 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6441589811155028 [2024-10-24 15:24:37,981 INFO L175 Difference]: Start difference. First operand has 470 places, 932 transitions, 13174 flow. Second operand 33 states and 5867 transitions. [2024-10-24 15:24:37,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 502 places, 1127 transitions, 17031 flow [2024-10-24 15:24:38,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 1127 transitions, 16691 flow, removed 16 selfloop flow, removed 28 redundant places. [2024-10-24 15:24:38,307 INFO L231 Difference]: Finished difference. Result has 478 places, 952 transitions, 14079 flow [2024-10-24 15:24:38,307 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=12852, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=932, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=693, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=14079, PETRI_PLACES=478, PETRI_TRANSITIONS=952} [2024-10-24 15:24:38,308 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 199 predicate places. [2024-10-24 15:24:38,308 INFO L471 AbstractCegarLoop]: Abstraction has has 478 places, 952 transitions, 14079 flow [2024-10-24 15:24:38,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 174.55) internal successors, (3491), 20 states have internal predecessors, (3491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:24:38,309 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:24:38,309 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:24:38,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 15:24:38,309 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-10-24 15:24:38,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:24:38,310 INFO L85 PathProgramCache]: Analyzing trace with hash -2147425216, now seen corresponding path program 3 times [2024-10-24 15:24:38,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:24:38,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814904662] [2024-10-24 15:24:38,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:24:38,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:24:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:24:39,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:24:39,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:24:39,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814904662] [2024-10-24 15:24:39,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814904662] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:24:39,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:24:39,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-24 15:24:39,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341003795] [2024-10-24 15:24:39,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:24:39,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 15:24:39,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:24:39,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 15:24:39,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306