./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/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.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 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:52:58,643 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:52:58,711 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:52:58,716 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:52:58,717 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:52:58,740 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:52:58,741 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:52:58,741 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:52:58,742 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:52:58,742 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:52:58,743 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:52:58,743 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:52:58,743 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:52:58,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:52:58,744 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:52:58,745 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:52:58,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:52:58,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:52:58,746 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:52:58,746 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:52:58,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:52:58,750 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:52:58,750 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:52:58,750 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:52:58,751 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:52:58,751 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:52:58,751 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:52:58,751 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:52:58,752 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:52:58,752 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:52:58,752 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:52:58,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:52:58,752 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:52:58,753 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:52:58,753 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:52:58,755 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:52:58,755 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:52:58,755 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:52:58,756 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:52:58,756 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:52:58,757 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:52:58,757 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 [2024-10-13 09:52:59,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:52:59,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:52:59,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:52:59,053 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:52:59,053 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:52:59,054 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-10-13 09:53:00,606 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:53:00,867 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:53:00,868 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-10-13 09:53:00,884 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d08a3d012/36ef132c14f6481e85c1800e1fa0083c/FLAG77569cf51 [2024-10-13 09:53:00,897 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d08a3d012/36ef132c14f6481e85c1800e1fa0083c [2024-10-13 09:53:00,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:53:00,902 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:53:00,905 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:53:00,905 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:53:00,911 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:53:00,912 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:53:00" (1/1) ... [2024-10-13 09:53:00,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e06aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:00, skipping insertion in model container [2024-10-13 09:53:00,914 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:53:00" (1/1) ... [2024-10-13 09:53:00,964 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:53:01,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:53:01,368 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:53:01,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:53:01,464 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:53:01,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:01 WrapperNode [2024-10-13 09:53:01,465 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:53:01,467 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:53:01,467 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:53:01,467 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:53:01,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:01" (1/1) ... [2024-10-13 09:53:01,491 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:01" (1/1) ... [2024-10-13 09:53:01,530 INFO L138 Inliner]: procedures = 165, calls = 35, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 178 [2024-10-13 09:53:01,531 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:53:01,532 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:53:01,532 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:53:01,532 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:53:01,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:01" (1/1) ... [2024-10-13 09:53:01,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:01" (1/1) ... [2024-10-13 09:53:01,551 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:01" (1/1) ... [2024-10-13 09:53:01,551 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:01" (1/1) ... [2024-10-13 09:53:01,568 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:01" (1/1) ... [2024-10-13 09:53:01,573 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:01" (1/1) ... [2024-10-13 09:53:01,575 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:01" (1/1) ... [2024-10-13 09:53:01,576 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:01" (1/1) ... [2024-10-13 09:53:01,580 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:53:01,581 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:53:01,584 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:53:01,584 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:53:01,585 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:01" (1/1) ... [2024-10-13 09:53:01,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:53:01,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:53:01,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 09:53:01,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 09:53:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-13 09:53:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-10-13 09:53:01,700 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-10-13 09:53:01,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-13 09:53:01,700 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 09:53:01,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:53:01,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 09:53:01,702 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 09:53:01,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:53:01,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:53:01,704 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:53:01,829 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:53:01,831 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:53:02,259 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:53:02,260 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:53:02,299 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:53:02,299 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-13 09:53:02,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:53:02 BoogieIcfgContainer [2024-10-13 09:53:02,300 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:53:02,302 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:53:02,303 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:53:02,306 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:53:02,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:53:00" (1/3) ... [2024-10-13 09:53:02,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e2af7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:53:02, skipping insertion in model container [2024-10-13 09:53:02,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:53:01" (2/3) ... [2024-10-13 09:53:02,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e2af7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:53:02, skipping insertion in model container [2024-10-13 09:53:02,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:53:02" (3/3) ... [2024-10-13 09:53:02,310 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-10-13 09:53:02,332 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:53:02,333 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-10-13 09:53:02,333 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:53:02,432 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:53:02,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 201 places, 209 transitions, 422 flow [2024-10-13 09:53:02,558 INFO L124 PetriNetUnfolderBase]: 12/208 cut-off events. [2024-10-13 09:53:02,559 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:53:02,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 208 events. 12/208 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 409 event pairs, 0 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 164. Up to 2 conditions per place. [2024-10-13 09:53:02,570 INFO L82 GeneralOperation]: Start removeDead. Operand has 201 places, 209 transitions, 422 flow [2024-10-13 09:53:02,579 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 200 places, 208 transitions, 419 flow [2024-10-13 09:53:02,592 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:53:02,600 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;@32738404, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:53:02,601 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-10-13 09:53:02,610 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:53:02,611 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-10-13 09:53:02,611 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:53:02,611 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:02,612 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] [2024-10-13 09:53:02,612 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-13 09:53:02,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:02,619 INFO L85 PathProgramCache]: Analyzing trace with hash -70160838, now seen corresponding path program 1 times [2024-10-13 09:53:02,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:02,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845872735] [2024-10-13 09:53:02,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:02,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:03,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:03,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:03,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845872735] [2024-10-13 09:53:03,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845872735] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:03,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:03,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:53:03,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118584036] [2024-10-13 09:53:03,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:03,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:53:03,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:03,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:53:03,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:53:03,719 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 209 [2024-10-13 09:53:03,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 208 transitions, 419 flow. Second operand has 6 states, 6 states have (on average 147.33333333333334) internal successors, (884), 6 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:03,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:03,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 209 [2024-10-13 09:53:03,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:53:04,145 INFO L124 PetriNetUnfolderBase]: 479/2039 cut-off events. [2024-10-13 09:53:04,147 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:53:04,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2925 conditions, 2039 events. 479/2039 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 14607 event pairs, 378 based on Foata normal form. 151/1993 useless extension candidates. Maximal degree in co-relation 2866. Up to 877 conditions per place. [2024-10-13 09:53:04,170 INFO L140 encePairwiseOnDemand]: 195/209 looper letters, 47 selfloop transitions, 5 changer transitions 0/193 dead transitions. [2024-10-13 09:53:04,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 193 transitions, 493 flow [2024-10-13 09:53:04,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:53:04,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:53:04,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 937 transitions. [2024-10-13 09:53:04,195 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7472089314194578 [2024-10-13 09:53:04,200 INFO L175 Difference]: Start difference. First operand has 200 places, 208 transitions, 419 flow. Second operand 6 states and 937 transitions. [2024-10-13 09:53:04,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 193 transitions, 493 flow [2024-10-13 09:53:04,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 193 transitions, 492 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:53:04,211 INFO L231 Difference]: Finished difference. Result has 196 places, 193 transitions, 398 flow [2024-10-13 09:53:04,213 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=398, PETRI_PLACES=196, PETRI_TRANSITIONS=193} [2024-10-13 09:53:04,220 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, -4 predicate places. [2024-10-13 09:53:04,221 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 193 transitions, 398 flow [2024-10-13 09:53:04,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 147.33333333333334) internal successors, (884), 6 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:04,222 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:04,222 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] [2024-10-13 09:53:04,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:53:04,222 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-13 09:53:04,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:04,223 INFO L85 PathProgramCache]: Analyzing trace with hash 736634007, now seen corresponding path program 1 times [2024-10-13 09:53:04,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:04,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621412453] [2024-10-13 09:53:04,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:04,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:04,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:04,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:04,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621412453] [2024-10-13 09:53:04,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621412453] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:04,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:04,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:53:04,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252043438] [2024-10-13 09:53:04,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:04,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:53:04,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:04,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:53:04,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:53:05,031 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 209 [2024-10-13 09:53:05,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 193 transitions, 398 flow. Second operand has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:05,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:05,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 209 [2024-10-13 09:53:05,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:53:05,534 INFO L124 PetriNetUnfolderBase]: 592/2764 cut-off events. [2024-10-13 09:53:05,534 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:53:05,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3879 conditions, 2764 events. 592/2764 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 21828 event pairs, 70 based on Foata normal form. 0/2532 useless extension candidates. Maximal degree in co-relation 3835. Up to 653 conditions per place. [2024-10-13 09:53:05,551 INFO L140 encePairwiseOnDemand]: 173/209 looper letters, 76 selfloop transitions, 43 changer transitions 0/260 dead transitions. [2024-10-13 09:53:05,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 260 transitions, 770 flow [2024-10-13 09:53:05,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:53:05,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:53:05,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1006 transitions. [2024-10-13 09:53:05,554 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8022328548644339 [2024-10-13 09:53:05,554 INFO L175 Difference]: Start difference. First operand has 196 places, 193 transitions, 398 flow. Second operand 6 states and 1006 transitions. [2024-10-13 09:53:05,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 260 transitions, 770 flow [2024-10-13 09:53:05,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 260 transitions, 760 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:53:05,566 INFO L231 Difference]: Finished difference. Result has 201 places, 236 transitions, 718 flow [2024-10-13 09:53:05,566 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=718, PETRI_PLACES=201, PETRI_TRANSITIONS=236} [2024-10-13 09:53:05,567 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 1 predicate places. [2024-10-13 09:53:05,568 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 236 transitions, 718 flow [2024-10-13 09:53:05,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:05,569 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:05,569 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] [2024-10-13 09:53:05,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 09:53:05,570 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-13 09:53:05,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:05,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1489049592, now seen corresponding path program 1 times [2024-10-13 09:53:05,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:05,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901088680] [2024-10-13 09:53:05,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:05,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:05,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:05,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:05,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901088680] [2024-10-13 09:53:05,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901088680] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:05,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:05,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:53:05,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461110881] [2024-10-13 09:53:05,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:05,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:53:05,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:05,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:53:05,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:53:06,201 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 209 [2024-10-13 09:53:06,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 236 transitions, 718 flow. Second operand has 6 states, 6 states have (on average 167.16666666666666) internal successors, (1003), 6 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:06,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:06,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 209 [2024-10-13 09:53:06,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:53:06,767 INFO L124 PetriNetUnfolderBase]: 620/3630 cut-off events. [2024-10-13 09:53:06,770 INFO L125 PetriNetUnfolderBase]: For 676/756 co-relation queries the response was YES. [2024-10-13 09:53:06,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6107 conditions, 3630 events. 620/3630 cut-off events. For 676/756 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 29776 event pairs, 75 based on Foata normal form. 12/3432 useless extension candidates. Maximal degree in co-relation 6050. Up to 758 conditions per place. [2024-10-13 09:53:06,795 INFO L140 encePairwiseOnDemand]: 191/209 looper letters, 66 selfloop transitions, 36 changer transitions 0/287 dead transitions. [2024-10-13 09:53:06,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 287 transitions, 1066 flow [2024-10-13 09:53:06,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:53:06,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:53:06,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1069 transitions. [2024-10-13 09:53:06,798 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8524720893141946 [2024-10-13 09:53:06,799 INFO L175 Difference]: Start difference. First operand has 201 places, 236 transitions, 718 flow. Second operand 6 states and 1069 transitions. [2024-10-13 09:53:06,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 287 transitions, 1066 flow [2024-10-13 09:53:06,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 287 transitions, 1066 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:53:06,814 INFO L231 Difference]: Finished difference. Result has 211 places, 271 transitions, 1018 flow [2024-10-13 09:53:06,815 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1018, PETRI_PLACES=211, PETRI_TRANSITIONS=271} [2024-10-13 09:53:06,816 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 11 predicate places. [2024-10-13 09:53:06,817 INFO L471 AbstractCegarLoop]: Abstraction has has 211 places, 271 transitions, 1018 flow [2024-10-13 09:53:06,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.16666666666666) internal successors, (1003), 6 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:06,818 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:06,818 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] [2024-10-13 09:53:06,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 09:53:06,818 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-13 09:53:06,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:06,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1342110901, now seen corresponding path program 1 times [2024-10-13 09:53:06,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:06,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416340028] [2024-10-13 09:53:06,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:06,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:07,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:07,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:07,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416340028] [2024-10-13 09:53:07,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416340028] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:07,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:07,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:53:07,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762636603] [2024-10-13 09:53:07,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:07,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:53:07,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:07,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:53:07,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:53:07,411 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 209 [2024-10-13 09:53:07,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 271 transitions, 1018 flow. Second operand has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:07,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:07,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 209 [2024-10-13 09:53:07,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:53:08,885 INFO L124 PetriNetUnfolderBase]: 2543/8449 cut-off events. [2024-10-13 09:53:08,885 INFO L125 PetriNetUnfolderBase]: For 4965/5276 co-relation queries the response was YES. [2024-10-13 09:53:08,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19213 conditions, 8449 events. 2543/8449 cut-off events. For 4965/5276 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 71927 event pairs, 840 based on Foata normal form. 117/8103 useless extension candidates. Maximal degree in co-relation 19151. Up to 4332 conditions per place. [2024-10-13 09:53:09,009 INFO L140 encePairwiseOnDemand]: 178/209 looper letters, 129 selfloop transitions, 153 changer transitions 0/427 dead transitions. [2024-10-13 09:53:09,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 427 transitions, 2278 flow [2024-10-13 09:53:09,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:53:09,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:53:09,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1039 transitions. [2024-10-13 09:53:09,014 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.828548644338118 [2024-10-13 09:53:09,014 INFO L175 Difference]: Start difference. First operand has 211 places, 271 transitions, 1018 flow. Second operand 6 states and 1039 transitions. [2024-10-13 09:53:09,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 427 transitions, 2278 flow [2024-10-13 09:53:09,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 427 transitions, 2278 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:53:09,057 INFO L231 Difference]: Finished difference. Result has 221 places, 414 transitions, 2408 flow [2024-10-13 09:53:09,058 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=1018, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2408, PETRI_PLACES=221, PETRI_TRANSITIONS=414} [2024-10-13 09:53:09,058 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 21 predicate places. [2024-10-13 09:53:09,059 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 414 transitions, 2408 flow [2024-10-13 09:53:09,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:09,060 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:09,060 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] [2024-10-13 09:53:09,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 09:53:09,061 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-13 09:53:09,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:09,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1913560309, now seen corresponding path program 1 times [2024-10-13 09:53:09,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:09,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709944344] [2024-10-13 09:53:09,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:09,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:09,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:09,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:09,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:09,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709944344] [2024-10-13 09:53:09,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709944344] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:09,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:09,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 09:53:09,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110603089] [2024-10-13 09:53:09,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:09,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 09:53:09,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:09,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 09:53:09,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-13 09:53:10,727 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-13 09:53:10,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 414 transitions, 2408 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:10,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:10,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-13 09:53:10,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:53:11,926 INFO L124 PetriNetUnfolderBase]: 1532/6775 cut-off events. [2024-10-13 09:53:11,927 INFO L125 PetriNetUnfolderBase]: For 6212/7269 co-relation queries the response was YES. [2024-10-13 09:53:11,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15961 conditions, 6775 events. 1532/6775 cut-off events. For 6212/7269 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 62153 event pairs, 63 based on Foata normal form. 59/6504 useless extension candidates. Maximal degree in co-relation 15896. Up to 1360 conditions per place. [2024-10-13 09:53:11,987 INFO L140 encePairwiseOnDemand]: 197/209 looper letters, 40 selfloop transitions, 16 changer transitions 0/449 dead transitions. [2024-10-13 09:53:11,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 449 transitions, 2632 flow [2024-10-13 09:53:11,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 09:53:11,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 09:53:11,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1496 transitions. [2024-10-13 09:53:11,992 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8947368421052632 [2024-10-13 09:53:11,992 INFO L175 Difference]: Start difference. First operand has 221 places, 414 transitions, 2408 flow. Second operand 8 states and 1496 transitions. [2024-10-13 09:53:11,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 449 transitions, 2632 flow [2024-10-13 09:53:12,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 449 transitions, 2494 flow, removed 69 selfloop flow, removed 0 redundant places. [2024-10-13 09:53:12,039 INFO L231 Difference]: Finished difference. Result has 231 places, 423 transitions, 2350 flow [2024-10-13 09:53:12,040 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=2276, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2350, PETRI_PLACES=231, PETRI_TRANSITIONS=423} [2024-10-13 09:53:12,041 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 31 predicate places. [2024-10-13 09:53:12,041 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 423 transitions, 2350 flow [2024-10-13 09:53:12,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:12,042 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:12,043 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] [2024-10-13 09:53:12,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 09:53:12,043 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-13 09:53:12,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:12,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1524466853, now seen corresponding path program 2 times [2024-10-13 09:53:12,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:12,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508346538] [2024-10-13 09:53:12,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:12,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:12,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:12,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:12,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:12,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508346538] [2024-10-13 09:53:12,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508346538] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:12,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:12,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 09:53:12,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907424756] [2024-10-13 09:53:12,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:12,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 09:53:12,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:12,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 09:53:12,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-13 09:53:13,147 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-13 09:53:13,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 423 transitions, 2350 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:13,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:13,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-13 09:53:13,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:53:14,504 INFO L124 PetriNetUnfolderBase]: 2147/8829 cut-off events. [2024-10-13 09:53:14,505 INFO L125 PetriNetUnfolderBase]: For 8322/9709 co-relation queries the response was YES. [2024-10-13 09:53:14,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21908 conditions, 8829 events. 2147/8829 cut-off events. For 8322/9709 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 83350 event pairs, 74 based on Foata normal form. 105/8518 useless extension candidates. Maximal degree in co-relation 21838. Up to 1752 conditions per place. [2024-10-13 09:53:14,572 INFO L140 encePairwiseOnDemand]: 197/209 looper letters, 49 selfloop transitions, 20 changer transitions 0/462 dead transitions. [2024-10-13 09:53:14,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 462 transitions, 2664 flow [2024-10-13 09:53:14,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 09:53:14,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 09:53:14,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1496 transitions. [2024-10-13 09:53:14,577 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8947368421052632 [2024-10-13 09:53:14,577 INFO L175 Difference]: Start difference. First operand has 231 places, 423 transitions, 2350 flow. Second operand 8 states and 1496 transitions. [2024-10-13 09:53:14,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 462 transitions, 2664 flow [2024-10-13 09:53:14,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 462 transitions, 2633 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 09:53:14,639 INFO L231 Difference]: Finished difference. Result has 238 places, 433 transitions, 2452 flow [2024-10-13 09:53:14,641 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=2341, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2452, PETRI_PLACES=238, PETRI_TRANSITIONS=433} [2024-10-13 09:53:14,643 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 38 predicate places. [2024-10-13 09:53:14,643 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 433 transitions, 2452 flow [2024-10-13 09:53:14,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:14,645 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:14,645 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] [2024-10-13 09:53:14,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 09:53:14,646 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-13 09:53:14,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:14,646 INFO L85 PathProgramCache]: Analyzing trace with hash 2064841145, now seen corresponding path program 3 times [2024-10-13 09:53:14,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:14,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927840784] [2024-10-13 09:53:14,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:14,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:15,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:15,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:15,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927840784] [2024-10-13 09:53:15,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927840784] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:15,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:15,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 09:53:15,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569065136] [2024-10-13 09:53:15,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:15,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 09:53:15,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:15,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 09:53:15,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-13 09:53:15,951 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-13 09:53:15,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 433 transitions, 2452 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:15,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:15,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-13 09:53:15,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:53:17,355 INFO L124 PetriNetUnfolderBase]: 2870/11873 cut-off events. [2024-10-13 09:53:17,355 INFO L125 PetriNetUnfolderBase]: For 13201/15033 co-relation queries the response was YES. [2024-10-13 09:53:17,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30692 conditions, 11873 events. 2870/11873 cut-off events. For 13201/15033 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 120262 event pairs, 112 based on Foata normal form. 184/11515 useless extension candidates. Maximal degree in co-relation 30619. Up to 2506 conditions per place. [2024-10-13 09:53:17,452 INFO L140 encePairwiseOnDemand]: 196/209 looper letters, 65 selfloop transitions, 23 changer transitions 0/481 dead transitions. [2024-10-13 09:53:17,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 481 transitions, 2934 flow [2024-10-13 09:53:17,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 09:53:17,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 09:53:17,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1501 transitions. [2024-10-13 09:53:17,456 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8977272727272727 [2024-10-13 09:53:17,457 INFO L175 Difference]: Start difference. First operand has 238 places, 433 transitions, 2452 flow. Second operand 8 states and 1501 transitions. [2024-10-13 09:53:17,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 481 transitions, 2934 flow [2024-10-13 09:53:17,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 481 transitions, 2889 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-10-13 09:53:17,687 INFO L231 Difference]: Finished difference. Result has 246 places, 447 transitions, 2619 flow [2024-10-13 09:53:17,688 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=2435, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2619, PETRI_PLACES=246, PETRI_TRANSITIONS=447} [2024-10-13 09:53:17,689 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 46 predicate places. [2024-10-13 09:53:17,689 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 447 transitions, 2619 flow [2024-10-13 09:53:17,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:17,690 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:17,690 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] [2024-10-13 09:53:17,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 09:53:17,691 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-13 09:53:17,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:17,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1841241191, now seen corresponding path program 4 times [2024-10-13 09:53:17,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:17,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655756715] [2024-10-13 09:53:17,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:17,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:18,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:18,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:18,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655756715] [2024-10-13 09:53:18,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655756715] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:18,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:18,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 09:53:18,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715658516] [2024-10-13 09:53:18,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:18,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 09:53:18,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:18,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 09:53:18,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-13 09:53:18,685 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-13 09:53:18,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 447 transitions, 2619 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:18,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:18,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-13 09:53:18,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:53:20,929 INFO L124 PetriNetUnfolderBase]: 3565/14527 cut-off events. [2024-10-13 09:53:20,929 INFO L125 PetriNetUnfolderBase]: For 19022/21252 co-relation queries the response was YES. [2024-10-13 09:53:20,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38446 conditions, 14527 events. 3565/14527 cut-off events. For 19022/21252 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 153782 event pairs, 128 based on Foata normal form. 228/14121 useless extension candidates. Maximal degree in co-relation 38369. Up to 3015 conditions per place. [2024-10-13 09:53:21,017 INFO L140 encePairwiseOnDemand]: 196/209 looper letters, 80 selfloop transitions, 27 changer transitions 0/500 dead transitions. [2024-10-13 09:53:21,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 500 transitions, 3230 flow [2024-10-13 09:53:21,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 09:53:21,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 09:53:21,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1502 transitions. [2024-10-13 09:53:21,022 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8983253588516746 [2024-10-13 09:53:21,022 INFO L175 Difference]: Start difference. First operand has 246 places, 447 transitions, 2619 flow. Second operand 8 states and 1502 transitions. [2024-10-13 09:53:21,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 500 transitions, 3230 flow [2024-10-13 09:53:21,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 500 transitions, 3180 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-10-13 09:53:21,116 INFO L231 Difference]: Finished difference. Result has 254 places, 460 transitions, 2791 flow [2024-10-13 09:53:21,117 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=2597, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2791, PETRI_PLACES=254, PETRI_TRANSITIONS=460} [2024-10-13 09:53:21,118 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 54 predicate places. [2024-10-13 09:53:21,119 INFO L471 AbstractCegarLoop]: Abstraction has has 254 places, 460 transitions, 2791 flow [2024-10-13 09:53:21,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:21,120 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:21,120 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] [2024-10-13 09:53:21,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 09:53:21,121 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-13 09:53:21,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:21,121 INFO L85 PathProgramCache]: Analyzing trace with hash 618469067, now seen corresponding path program 5 times [2024-10-13 09:53:21,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:21,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878755546] [2024-10-13 09:53:21,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:21,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:21,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:21,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:21,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878755546] [2024-10-13 09:53:21,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878755546] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:21,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:21,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 09:53:21,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830247135] [2024-10-13 09:53:21,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:21,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 09:53:21,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:21,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 09:53:21,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-13 09:53:22,195 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-13 09:53:22,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 460 transitions, 2791 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:22,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:22,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-13 09:53:22,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:53:24,516 INFO L124 PetriNetUnfolderBase]: 4324/17689 cut-off events. [2024-10-13 09:53:24,516 INFO L125 PetriNetUnfolderBase]: For 28409/31095 co-relation queries the response was YES. [2024-10-13 09:53:24,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48631 conditions, 17689 events. 4324/17689 cut-off events. For 28409/31095 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 197258 event pairs, 176 based on Foata normal form. 257/17182 useless extension candidates. Maximal degree in co-relation 48550. Up to 3697 conditions per place. [2024-10-13 09:53:24,645 INFO L140 encePairwiseOnDemand]: 196/209 looper letters, 91 selfloop transitions, 28 changer transitions 0/512 dead transitions. [2024-10-13 09:53:24,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 512 transitions, 3466 flow [2024-10-13 09:53:24,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 09:53:24,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 09:53:24,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1507 transitions. [2024-10-13 09:53:24,649 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9013157894736842 [2024-10-13 09:53:24,649 INFO L175 Difference]: Start difference. First operand has 254 places, 460 transitions, 2791 flow. Second operand 8 states and 1507 transitions. [2024-10-13 09:53:24,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 512 transitions, 3466 flow [2024-10-13 09:53:24,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 512 transitions, 3403 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-10-13 09:53:24,918 INFO L231 Difference]: Finished difference. Result has 263 places, 478 transitions, 3038 flow [2024-10-13 09:53:24,919 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=2754, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3038, PETRI_PLACES=263, PETRI_TRANSITIONS=478} [2024-10-13 09:53:24,920 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 63 predicate places. [2024-10-13 09:53:24,920 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 478 transitions, 3038 flow [2024-10-13 09:53:24,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:24,921 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:24,921 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] [2024-10-13 09:53:24,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 09:53:24,921 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-13 09:53:24,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:24,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1741101501, now seen corresponding path program 6 times [2024-10-13 09:53:24,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:24,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397178260] [2024-10-13 09:53:24,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:24,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:25,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:25,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:25,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397178260] [2024-10-13 09:53:25,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397178260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:25,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:25,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 09:53:25,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118868677] [2024-10-13 09:53:25,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:25,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 09:53:25,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:25,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 09:53:25,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-13 09:53:25,836 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-13 09:53:25,837 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 478 transitions, 3038 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:25,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:25,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-13 09:53:25,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:53:28,601 INFO L124 PetriNetUnfolderBase]: 4321/17877 cut-off events. [2024-10-13 09:53:28,601 INFO L125 PetriNetUnfolderBase]: For 32060/34809 co-relation queries the response was YES. [2024-10-13 09:53:28,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49207 conditions, 17877 events. 4321/17877 cut-off events. For 32060/34809 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 200195 event pairs, 177 based on Foata normal form. 360/17460 useless extension candidates. Maximal degree in co-relation 49121. Up to 3797 conditions per place. [2024-10-13 09:53:28,722 INFO L140 encePairwiseOnDemand]: 196/209 looper letters, 96 selfloop transitions, 38 changer transitions 0/527 dead transitions. [2024-10-13 09:53:28,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 527 transitions, 3728 flow [2024-10-13 09:53:28,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 09:53:28,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 09:53:28,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1504 transitions. [2024-10-13 09:53:28,727 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8995215311004785 [2024-10-13 09:53:28,727 INFO L175 Difference]: Start difference. First operand has 263 places, 478 transitions, 3038 flow. Second operand 8 states and 1504 transitions. [2024-10-13 09:53:28,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 527 transitions, 3728 flow [2024-10-13 09:53:28,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 527 transitions, 3679 flow, removed 24 selfloop flow, removed 1 redundant places. [2024-10-13 09:53:28,851 INFO L231 Difference]: Finished difference. Result has 274 places, 491 transitions, 3279 flow [2024-10-13 09:53:28,851 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=2989, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3279, PETRI_PLACES=274, PETRI_TRANSITIONS=491} [2024-10-13 09:53:28,852 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 74 predicate places. [2024-10-13 09:53:28,852 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 491 transitions, 3279 flow [2024-10-13 09:53:28,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:28,853 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:28,853 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] [2024-10-13 09:53:28,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 09:53:28,854 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-13 09:53:28,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:28,854 INFO L85 PathProgramCache]: Analyzing trace with hash -824567777, now seen corresponding path program 7 times [2024-10-13 09:53:28,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:28,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918445589] [2024-10-13 09:53:28,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:28,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:29,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:29,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:29,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918445589] [2024-10-13 09:53:29,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918445589] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:29,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:29,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 09:53:29,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877682089] [2024-10-13 09:53:29,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:29,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 09:53:29,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:29,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 09:53:29,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-13 09:53:29,773 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-13 09:53:29,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 491 transitions, 3279 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:29,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:29,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-13 09:53:29,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:53:32,229 INFO L124 PetriNetUnfolderBase]: 4322/17811 cut-off events. [2024-10-13 09:53:32,229 INFO L125 PetriNetUnfolderBase]: For 36996/39616 co-relation queries the response was YES. [2024-10-13 09:53:32,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50209 conditions, 17811 events. 4322/17811 cut-off events. For 36996/39616 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 198851 event pairs, 176 based on Foata normal form. 324/17371 useless extension candidates. Maximal degree in co-relation 50117. Up to 3722 conditions per place. [2024-10-13 09:53:32,392 INFO L140 encePairwiseOnDemand]: 196/209 looper letters, 103 selfloop transitions, 39 changer transitions 0/535 dead transitions. [2024-10-13 09:53:32,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 535 transitions, 3938 flow [2024-10-13 09:53:32,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 09:53:32,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 09:53:32,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1503 transitions. [2024-10-13 09:53:32,397 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8989234449760766 [2024-10-13 09:53:32,397 INFO L175 Difference]: Start difference. First operand has 274 places, 491 transitions, 3279 flow. Second operand 8 states and 1503 transitions. [2024-10-13 09:53:32,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 535 transitions, 3938 flow [2024-10-13 09:53:32,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 535 transitions, 3869 flow, removed 34 selfloop flow, removed 1 redundant places. [2024-10-13 09:53:32,535 INFO L231 Difference]: Finished difference. Result has 284 places, 501 transitions, 3451 flow [2024-10-13 09:53:32,535 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=3210, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=491, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3451, PETRI_PLACES=284, PETRI_TRANSITIONS=501} [2024-10-13 09:53:32,536 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 84 predicate places. [2024-10-13 09:53:32,536 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 501 transitions, 3451 flow [2024-10-13 09:53:32,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:32,537 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:32,537 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] [2024-10-13 09:53:32,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 09:53:32,537 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-13 09:53:32,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:32,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1959137705, now seen corresponding path program 8 times [2024-10-13 09:53:32,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:32,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343541096] [2024-10-13 09:53:32,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:32,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:32,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:33,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:33,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:33,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343541096] [2024-10-13 09:53:33,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343541096] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:33,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:33,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 09:53:33,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067476305] [2024-10-13 09:53:33,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:33,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 09:53:33,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:33,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 09:53:33,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-13 09:53:33,655 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-13 09:53:33,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 501 transitions, 3451 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:33,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:33,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-13 09:53:33,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:53:36,329 INFO L124 PetriNetUnfolderBase]: 4367/18224 cut-off events. [2024-10-13 09:53:36,329 INFO L125 PetriNetUnfolderBase]: For 44113/46864 co-relation queries the response was YES. [2024-10-13 09:53:36,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52548 conditions, 18224 events. 4367/18224 cut-off events. For 44113/46864 co-relation queries the response was YES. Maximal size of possible extension queue 402. Compared 204931 event pairs, 173 based on Foata normal form. 249/17686 useless extension candidates. Maximal degree in co-relation 52451. Up to 3797 conditions per place. [2024-10-13 09:53:36,470 INFO L140 encePairwiseOnDemand]: 195/209 looper letters, 105 selfloop transitions, 41 changer transitions 0/539 dead transitions. [2024-10-13 09:53:36,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 539 transitions, 4150 flow [2024-10-13 09:53:36,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 09:53:36,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 09:53:36,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1509 transitions. [2024-10-13 09:53:36,474 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.902511961722488 [2024-10-13 09:53:36,474 INFO L175 Difference]: Start difference. First operand has 284 places, 501 transitions, 3451 flow. Second operand 8 states and 1509 transitions. [2024-10-13 09:53:36,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 539 transitions, 4150 flow [2024-10-13 09:53:36,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 539 transitions, 4073 flow, removed 24 selfloop flow, removed 3 redundant places. [2024-10-13 09:53:36,633 INFO L231 Difference]: Finished difference. Result has 291 places, 517 transitions, 3742 flow [2024-10-13 09:53:36,634 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=3396, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=501, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3742, PETRI_PLACES=291, PETRI_TRANSITIONS=517} [2024-10-13 09:53:36,634 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 91 predicate places. [2024-10-13 09:53:36,634 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 517 transitions, 3742 flow [2024-10-13 09:53:36,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:36,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:36,635 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] [2024-10-13 09:53:36,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 09:53:36,635 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-13 09:53:36,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:36,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1081149943, now seen corresponding path program 9 times [2024-10-13 09:53:36,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:36,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293742775] [2024-10-13 09:53:36,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:36,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:37,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:37,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:37,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293742775] [2024-10-13 09:53:37,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293742775] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:37,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:37,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 09:53:37,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896176240] [2024-10-13 09:53:37,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:37,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 09:53:37,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:37,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 09:53:37,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-13 09:53:37,704 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-13 09:53:37,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 517 transitions, 3742 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:37,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:37,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-13 09:53:37,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:53:40,080 INFO L124 PetriNetUnfolderBase]: 3696/15904 cut-off events. [2024-10-13 09:53:40,080 INFO L125 PetriNetUnfolderBase]: For 40462/42817 co-relation queries the response was YES. [2024-10-13 09:53:40,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45799 conditions, 15904 events. 3696/15904 cut-off events. For 40462/42817 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 173182 event pairs, 141 based on Foata normal form. 214/15416 useless extension candidates. Maximal degree in co-relation 45699. Up to 3293 conditions per place. [2024-10-13 09:53:40,213 INFO L140 encePairwiseOnDemand]: 195/209 looper letters, 107 selfloop transitions, 51 changer transitions 0/551 dead transitions. [2024-10-13 09:53:40,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 551 transitions, 4420 flow [2024-10-13 09:53:40,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 09:53:40,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 09:53:40,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1505 transitions. [2024-10-13 09:53:40,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9001196172248804 [2024-10-13 09:53:40,217 INFO L175 Difference]: Start difference. First operand has 291 places, 517 transitions, 3742 flow. Second operand 8 states and 1505 transitions. [2024-10-13 09:53:40,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 551 transitions, 4420 flow [2024-10-13 09:53:40,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 551 transitions, 4341 flow, removed 14 selfloop flow, removed 4 redundant places. [2024-10-13 09:53:40,358 INFO L231 Difference]: Finished difference. Result has 297 places, 530 transitions, 4030 flow [2024-10-13 09:53:40,359 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=3626, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=514, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4030, PETRI_PLACES=297, PETRI_TRANSITIONS=530} [2024-10-13 09:53:40,359 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 97 predicate places. [2024-10-13 09:53:40,360 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 530 transitions, 4030 flow [2024-10-13 09:53:40,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:40,360 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:40,360 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] [2024-10-13 09:53:40,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 09:53:40,361 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-13 09:53:40,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:40,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1378700735, now seen corresponding path program 10 times [2024-10-13 09:53:40,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:40,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382347143] [2024-10-13 09:53:40,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:40,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:40,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:40,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:40,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382347143] [2024-10-13 09:53:40,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382347143] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:40,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:40,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 09:53:40,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818538358] [2024-10-13 09:53:40,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:40,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 09:53:40,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:40,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 09:53:40,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-13 09:53:41,517 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-13 09:53:41,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 530 transitions, 4030 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:41,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:41,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-13 09:53:41,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:53:43,798 INFO L124 PetriNetUnfolderBase]: 3098/13963 cut-off events. [2024-10-13 09:53:43,799 INFO L125 PetriNetUnfolderBase]: For 39408/41721 co-relation queries the response was YES. [2024-10-13 09:53:43,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40461 conditions, 13963 events. 3098/13963 cut-off events. For 39408/41721 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 148142 event pairs, 118 based on Foata normal form. 270/13623 useless extension candidates. Maximal degree in co-relation 40358. Up to 2853 conditions per place. [2024-10-13 09:53:43,903 INFO L140 encePairwiseOnDemand]: 195/209 looper letters, 118 selfloop transitions, 59 changer transitions 0/570 dead transitions. [2024-10-13 09:53:43,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 570 transitions, 4810 flow [2024-10-13 09:53:43,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 09:53:43,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 09:53:43,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1501 transitions. [2024-10-13 09:53:43,907 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8977272727272727 [2024-10-13 09:53:43,907 INFO L175 Difference]: Start difference. First operand has 297 places, 530 transitions, 4030 flow. Second operand 8 states and 1501 transitions. [2024-10-13 09:53:43,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 570 transitions, 4810 flow [2024-10-13 09:53:44,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 570 transitions, 4687 flow, removed 29 selfloop flow, removed 4 redundant places. [2024-10-13 09:53:44,023 INFO L231 Difference]: Finished difference. Result has 303 places, 543 transitions, 4280 flow [2024-10-13 09:53:44,024 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=3872, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=527, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=475, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4280, PETRI_PLACES=303, PETRI_TRANSITIONS=543} [2024-10-13 09:53:44,025 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 103 predicate places. [2024-10-13 09:53:44,025 INFO L471 AbstractCegarLoop]: Abstraction has has 303 places, 543 transitions, 4280 flow [2024-10-13 09:53:44,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:44,025 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:44,026 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] [2024-10-13 09:53:44,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 09:53:44,026 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-13 09:53:44,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:44,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1214011035, now seen corresponding path program 11 times [2024-10-13 09:53:44,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:44,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138184288] [2024-10-13 09:53:44,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:44,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:44,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:44,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:44,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138184288] [2024-10-13 09:53:44,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138184288] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:44,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:44,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 09:53:44,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414944960] [2024-10-13 09:53:44,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:44,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 09:53:44,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:44,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 09:53:44,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-13 09:53:44,906 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-13 09:53:44,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 543 transitions, 4280 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:44,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:44,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-13 09:53:44,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:53:47,165 INFO L124 PetriNetUnfolderBase]: 3122/14118 cut-off events. [2024-10-13 09:53:47,165 INFO L125 PetriNetUnfolderBase]: For 46831/49233 co-relation queries the response was YES. [2024-10-13 09:53:47,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41579 conditions, 14118 events. 3122/14118 cut-off events. For 46831/49233 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 150102 event pairs, 111 based on Foata normal form. 253/13760 useless extension candidates. Maximal degree in co-relation 41473. Up to 2828 conditions per place. [2024-10-13 09:53:47,268 INFO L140 encePairwiseOnDemand]: 196/209 looper letters, 148 selfloop transitions, 34 changer transitions 0/575 dead transitions. [2024-10-13 09:53:47,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 575 transitions, 4949 flow [2024-10-13 09:53:47,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 09:53:47,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 09:53:47,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1507 transitions. [2024-10-13 09:53:47,270 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9013157894736842 [2024-10-13 09:53:47,270 INFO L175 Difference]: Start difference. First operand has 303 places, 543 transitions, 4280 flow. Second operand 8 states and 1507 transitions. [2024-10-13 09:53:47,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 575 transitions, 4949 flow [2024-10-13 09:53:47,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 575 transitions, 4857 flow, removed 23 selfloop flow, removed 3 redundant places. [2024-10-13 09:53:47,428 INFO L231 Difference]: Finished difference. Result has 311 places, 553 transitions, 4440 flow [2024-10-13 09:53:47,429 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=4196, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=512, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4440, PETRI_PLACES=311, PETRI_TRANSITIONS=553} [2024-10-13 09:53:47,429 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 111 predicate places. [2024-10-13 09:53:47,429 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 553 transitions, 4440 flow [2024-10-13 09:53:47,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:47,430 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:47,430 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] [2024-10-13 09:53:47,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-13 09:53:47,431 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-13 09:53:47,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:47,431 INFO L85 PathProgramCache]: Analyzing trace with hash 662606125, now seen corresponding path program 12 times [2024-10-13 09:53:47,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:47,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653694987] [2024-10-13 09:53:47,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:47,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:47,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:47,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:47,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653694987] [2024-10-13 09:53:47,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653694987] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:47,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:47,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 09:53:47,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056928328] [2024-10-13 09:53:47,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:47,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 09:53:47,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:47,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 09:53:47,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-13 09:53:48,588 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-13 09:53:48,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 553 transitions, 4440 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:48,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:48,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-13 09:53:48,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:53:50,929 INFO L124 PetriNetUnfolderBase]: 3152/14485 cut-off events. [2024-10-13 09:53:50,929 INFO L125 PetriNetUnfolderBase]: For 45727/48139 co-relation queries the response was YES. [2024-10-13 09:53:51,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42603 conditions, 14485 events. 3152/14485 cut-off events. For 45727/48139 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 155457 event pairs, 117 based on Foata normal form. 222/14076 useless extension candidates. Maximal degree in co-relation 42493. Up to 2903 conditions per place. [2024-10-13 09:53:51,038 INFO L140 encePairwiseOnDemand]: 195/209 looper letters, 151 selfloop transitions, 45 changer transitions 0/589 dead transitions. [2024-10-13 09:53:51,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 589 transitions, 5228 flow [2024-10-13 09:53:51,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 09:53:51,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 09:53:51,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1506 transitions. [2024-10-13 09:53:51,039 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9007177033492823 [2024-10-13 09:53:51,039 INFO L175 Difference]: Start difference. First operand has 311 places, 553 transitions, 4440 flow. Second operand 8 states and 1506 transitions. [2024-10-13 09:53:51,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 589 transitions, 5228 flow [2024-10-13 09:53:51,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 589 transitions, 5099 flow, removed 48 selfloop flow, removed 3 redundant places. [2024-10-13 09:53:51,186 INFO L231 Difference]: Finished difference. Result has 318 places, 569 transitions, 4711 flow [2024-10-13 09:53:51,187 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=4355, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=553, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4711, PETRI_PLACES=318, PETRI_TRANSITIONS=569} [2024-10-13 09:53:51,187 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 118 predicate places. [2024-10-13 09:53:51,187 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 569 transitions, 4711 flow [2024-10-13 09:53:51,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:51,188 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:51,188 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] [2024-10-13 09:53:51,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-13 09:53:51,188 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-13 09:53:51,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:51,189 INFO L85 PathProgramCache]: Analyzing trace with hash 438507949, now seen corresponding path program 13 times [2024-10-13 09:53:51,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:51,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046143096] [2024-10-13 09:53:51,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:51,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:51,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:51,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:51,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:51,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046143096] [2024-10-13 09:53:51,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046143096] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:51,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:51,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 09:53:51,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326165647] [2024-10-13 09:53:51,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:51,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 09:53:51,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:51,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 09:53:51,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-13 09:53:52,180 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-13 09:53:52,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 569 transitions, 4711 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:52,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:52,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-13 09:53:52,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:53:54,464 INFO L124 PetriNetUnfolderBase]: 2496/12225 cut-off events. [2024-10-13 09:53:54,464 INFO L125 PetriNetUnfolderBase]: For 38774/40812 co-relation queries the response was YES. [2024-10-13 09:53:54,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35627 conditions, 12225 events. 2496/12225 cut-off events. For 38774/40812 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 127548 event pairs, 96 based on Foata normal form. 171/11847 useless extension candidates. Maximal degree in co-relation 35514. Up to 2422 conditions per place. [2024-10-13 09:53:54,607 INFO L140 encePairwiseOnDemand]: 195/209 looper letters, 147 selfloop transitions, 51 changer transitions 0/591 dead transitions. [2024-10-13 09:53:54,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 591 transitions, 5355 flow [2024-10-13 09:53:54,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 09:53:54,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 09:53:54,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1509 transitions. [2024-10-13 09:53:54,610 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.902511961722488 [2024-10-13 09:53:54,610 INFO L175 Difference]: Start difference. First operand has 318 places, 569 transitions, 4711 flow. Second operand 8 states and 1509 transitions. [2024-10-13 09:53:54,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 591 transitions, 5355 flow [2024-10-13 09:53:54,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 591 transitions, 5282 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-10-13 09:53:54,792 INFO L231 Difference]: Finished difference. Result has 324 places, 582 transitions, 5012 flow [2024-10-13 09:53:54,792 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=4599, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=523, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5012, PETRI_PLACES=324, PETRI_TRANSITIONS=582} [2024-10-13 09:53:54,793 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 124 predicate places. [2024-10-13 09:53:54,793 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 582 transitions, 5012 flow [2024-10-13 09:53:54,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:54,794 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:54,794 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] [2024-10-13 09:53:54,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-13 09:53:54,794 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-13 09:53:54,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:54,795 INFO L85 PathProgramCache]: Analyzing trace with hash -87831373, now seen corresponding path program 14 times [2024-10-13 09:53:54,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:54,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758012156] [2024-10-13 09:53:54,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:54,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:55,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:55,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:55,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758012156] [2024-10-13 09:53:55,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758012156] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:55,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:55,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 09:53:55,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992345331] [2024-10-13 09:53:55,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:55,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 09:53:55,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:55,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 09:53:55,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-13 09:53:55,650 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-13 09:53:55,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 582 transitions, 5012 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:55,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:55,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-13 09:53:55,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:53:56,191 INFO L124 PetriNetUnfolderBase]: 355/3866 cut-off events. [2024-10-13 09:53:56,191 INFO L125 PetriNetUnfolderBase]: For 13649/13827 co-relation queries the response was YES. [2024-10-13 09:53:56,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10724 conditions, 3866 events. 355/3866 cut-off events. For 13649/13827 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 35999 event pairs, 14 based on Foata normal form. 62/3753 useless extension candidates. Maximal degree in co-relation 10608. Up to 738 conditions per place. [2024-10-13 09:53:56,223 INFO L140 encePairwiseOnDemand]: 195/209 looper letters, 111 selfloop transitions, 88 changer transitions 0/373 dead transitions. [2024-10-13 09:53:56,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 373 transitions, 3878 flow [2024-10-13 09:53:56,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 09:53:56,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 09:53:56,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1500 transitions. [2024-10-13 09:53:56,224 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8971291866028708 [2024-10-13 09:53:56,224 INFO L175 Difference]: Start difference. First operand has 324 places, 582 transitions, 5012 flow. Second operand 8 states and 1500 transitions. [2024-10-13 09:53:56,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 373 transitions, 3878 flow [2024-10-13 09:53:56,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 373 transitions, 3435 flow, removed 96 selfloop flow, removed 18 redundant places. [2024-10-13 09:53:56,268 INFO L231 Difference]: Finished difference. Result has 308 places, 370 transitions, 3264 flow [2024-10-13 09:53:56,269 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=2840, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3264, PETRI_PLACES=308, PETRI_TRANSITIONS=370} [2024-10-13 09:53:56,269 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 108 predicate places. [2024-10-13 09:53:56,269 INFO L471 AbstractCegarLoop]: Abstraction has has 308 places, 370 transitions, 3264 flow [2024-10-13 09:53:56,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:56,270 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:56,270 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] [2024-10-13 09:53:56,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-13 09:53:56,270 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting workerErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-13 09:53:56,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:56,271 INFO L85 PathProgramCache]: Analyzing trace with hash 262692781, now seen corresponding path program 1 times [2024-10-13 09:53:56,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:56,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193427872] [2024-10-13 09:53:56,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:56,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:56,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:56,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:56,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:56,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193427872] [2024-10-13 09:53:56,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193427872] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:56,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:56,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 09:53:56,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862112766] [2024-10-13 09:53:56,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:56,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 09:53:56,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:56,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 09:53:56,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-13 09:53:57,000 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 209 [2024-10-13 09:53:57,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 370 transitions, 3264 flow. Second operand has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:57,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:57,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 209 [2024-10-13 09:53:57,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:53:57,593 INFO L124 PetriNetUnfolderBase]: 417/4637 cut-off events. [2024-10-13 09:53:57,594 INFO L125 PetriNetUnfolderBase]: For 14390/14537 co-relation queries the response was YES. [2024-10-13 09:53:57,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10641 conditions, 4637 events. 417/4637 cut-off events. For 14390/14537 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 41255 event pairs, 11 based on Foata normal form. 113/4568 useless extension candidates. Maximal degree in co-relation 10522. Up to 567 conditions per place. [2024-10-13 09:53:57,634 INFO L140 encePairwiseOnDemand]: 198/209 looper letters, 167 selfloop transitions, 24 changer transitions 0/425 dead transitions. [2024-10-13 09:53:57,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 425 transitions, 4352 flow [2024-10-13 09:53:57,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 09:53:57,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 09:53:57,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1433 transitions. [2024-10-13 09:53:57,635 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8570574162679426 [2024-10-13 09:53:57,635 INFO L175 Difference]: Start difference. First operand has 308 places, 370 transitions, 3264 flow. Second operand 8 states and 1433 transitions. [2024-10-13 09:53:57,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 425 transitions, 4352 flow [2024-10-13 09:53:57,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 425 transitions, 4189 flow, removed 27 selfloop flow, removed 5 redundant places. [2024-10-13 09:53:57,677 INFO L231 Difference]: Finished difference. Result has 314 places, 389 transitions, 3497 flow [2024-10-13 09:53:57,677 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=3121, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3497, PETRI_PLACES=314, PETRI_TRANSITIONS=389} [2024-10-13 09:53:57,678 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 114 predicate places. [2024-10-13 09:53:57,678 INFO L471 AbstractCegarLoop]: Abstraction has has 314 places, 389 transitions, 3497 flow [2024-10-13 09:53:57,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:57,679 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:53:57,679 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:53:57,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-13 09:53:57,679 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting workerErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-13 09:53:57,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:53:57,679 INFO L85 PathProgramCache]: Analyzing trace with hash 796513834, now seen corresponding path program 1 times [2024-10-13 09:53:57,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:53:57,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526134593] [2024-10-13 09:53:57,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:53:57,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:53:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:53:57,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:53:57,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:53:57,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526134593] [2024-10-13 09:53:58,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526134593] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:53:58,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:53:58,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:53:58,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915287925] [2024-10-13 09:53:58,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:53:58,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:53:58,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:53:58,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:53:58,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:53:58,186 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 209 [2024-10-13 09:53:58,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 389 transitions, 3497 flow. Second operand has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:58,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:53:58,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 209 [2024-10-13 09:53:58,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:53:58,942 INFO L124 PetriNetUnfolderBase]: 705/5112 cut-off events. [2024-10-13 09:53:58,942 INFO L125 PetriNetUnfolderBase]: For 23436/24023 co-relation queries the response was YES. [2024-10-13 09:53:58,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14681 conditions, 5112 events. 705/5112 cut-off events. For 23436/24023 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 44608 event pairs, 157 based on Foata normal form. 550/5495 useless extension candidates. Maximal degree in co-relation 14557. Up to 2314 conditions per place. [2024-10-13 09:53:58,978 INFO L140 encePairwiseOnDemand]: 203/209 looper letters, 0 selfloop transitions, 0 changer transitions 388/388 dead transitions. [2024-10-13 09:53:58,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 388 transitions, 3843 flow [2024-10-13 09:53:58,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:53:58,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:53:58,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 904 transitions. [2024-10-13 09:53:58,980 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7208931419457735 [2024-10-13 09:53:58,980 INFO L175 Difference]: Start difference. First operand has 314 places, 389 transitions, 3497 flow. Second operand 6 states and 904 transitions. [2024-10-13 09:53:58,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 388 transitions, 3843 flow [2024-10-13 09:53:59,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 388 transitions, 3837 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:53:59,027 INFO L231 Difference]: Finished difference. Result has 316 places, 0 transitions, 0 flow [2024-10-13 09:53:59,027 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=3489, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=388, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=316, PETRI_TRANSITIONS=0} [2024-10-13 09:53:59,028 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 116 predicate places. [2024-10-13 09:53:59,028 INFO L471 AbstractCegarLoop]: Abstraction has has 316 places, 0 transitions, 0 flow [2024-10-13 09:53:59,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:53:59,031 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 17 remaining) [2024-10-13 09:53:59,031 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2024-10-13 09:53:59,031 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2024-10-13 09:53:59,031 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2024-10-13 09:53:59,031 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 17 remaining) [2024-10-13 09:53:59,031 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2024-10-13 09:53:59,032 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2024-10-13 09:53:59,032 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2024-10-13 09:53:59,032 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2024-10-13 09:53:59,032 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2024-10-13 09:53:59,032 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr5ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2024-10-13 09:53:59,032 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2024-10-13 09:53:59,032 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2024-10-13 09:53:59,032 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2024-10-13 09:53:59,032 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2024-10-13 09:53:59,032 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2024-10-13 09:53:59,032 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr5ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2024-10-13 09:53:59,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-13 09:53:59,033 INFO L407 BasicCegarLoop]: Path program histogram: [14, 1, 1, 1, 1, 1, 1] [2024-10-13 09:53:59,038 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 09:53:59,039 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 09:53:59,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:53:59 BasicIcfg [2024-10-13 09:53:59,043 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 09:53:59,044 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 09:53:59,044 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 09:53:59,044 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 09:53:59,044 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:53:02" (3/4) ... [2024-10-13 09:53:59,046 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 09:53:59,049 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure worker [2024-10-13 09:53:59,052 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-10-13 09:53:59,052 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-13 09:53:59,052 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-13 09:53:59,052 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-13 09:53:59,135 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 09:53:59,136 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 09:53:59,136 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 09:53:59,136 INFO L158 Benchmark]: Toolchain (without parser) took 58235.08ms. Allocated memory was 142.6MB in the beginning and 13.0GB in the end (delta: 12.9GB). Free memory was 87.0MB in the beginning and 10.2GB in the end (delta: -10.1GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. [2024-10-13 09:53:59,137 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 107.3MB in the end (delta: 31.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 09:53:59,137 INFO L158 Benchmark]: CACSL2BoogieTranslator took 560.78ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 63.9MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-13 09:53:59,137 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.35ms. Allocated memory is still 142.6MB. Free memory was 63.9MB in the beginning and 61.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 09:53:59,137 INFO L158 Benchmark]: Boogie Preprocessor took 48.27ms. Allocated memory is still 142.6MB. Free memory was 61.0MB in the beginning and 58.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 09:53:59,138 INFO L158 Benchmark]: RCFGBuilder took 719.25ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 58.2MB in the beginning and 150.1MB in the end (delta: -91.9MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2024-10-13 09:53:59,138 INFO L158 Benchmark]: TraceAbstraction took 56740.71ms. Allocated memory was 188.7MB in the beginning and 13.0GB in the end (delta: 12.9GB). Free memory was 150.1MB in the beginning and 10.2GB in the end (delta: -10.1GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. [2024-10-13 09:53:59,138 INFO L158 Benchmark]: Witness Printer took 92.38ms. Allocated memory is still 13.0GB. Free memory was 10.2GB in the beginning and 10.2GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-13 09:53:59,142 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 107.3MB in the end (delta: 31.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 560.78ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 63.9MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.35ms. Allocated memory is still 142.6MB. Free memory was 63.9MB in the beginning and 61.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.27ms. Allocated memory is still 142.6MB. Free memory was 61.0MB in the beginning and 58.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 719.25ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 58.2MB in the beginning and 150.1MB in the end (delta: -91.9MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. * TraceAbstraction took 56740.71ms. Allocated memory was 188.7MB in the beginning and 13.0GB in the end (delta: 12.9GB). Free memory was 150.1MB in the beginning and 10.2GB in the end (delta: -10.1GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. * Witness Printer took 92.38ms. Allocated memory is still 13.0GB. Free memory was 10.2GB in the beginning and 10.2GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 715]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 715]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 726]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 299 locations, 17 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 56.6s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 14, EmptinessCheckTime: 0.0s, AutomataDifference: 46.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9685 SdHoareTripleChecker+Valid, 11.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7488 mSDsluCounter, 9232 SdHoareTripleChecker+Invalid, 9.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8564 mSDsCounter, 294 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18440 IncrementalHoareTripleChecker+Invalid, 18734 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 294 mSolverCounterUnsat, 668 mSDtfsCounter, 18440 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 226 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5012occurred in iteration=17, InterpolantAutomatonStates: 150, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 8.7s InterpolantComputationTime, 1650 NumberOfCodeBlocks, 1650 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1630 ConstructedInterpolants, 0 QuantifiedInterpolants, 6193 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-13 09:53:59,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE