./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longest.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longest.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5fb3c623242420f3b3352ce2377df781fcc1efd56f82dd0011f9620e127821b3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 16:44:59,841 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 16:44:59,909 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 16:44:59,915 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 16:44:59,916 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 16:44:59,942 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 16:44:59,943 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 16:44:59,943 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 16:44:59,944 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 16:44:59,944 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 16:44:59,944 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 16:44:59,945 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 16:44:59,945 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 16:44:59,946 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 16:44:59,947 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 16:44:59,947 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 16:44:59,947 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 16:44:59,949 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 16:44:59,950 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 16:44:59,950 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 16:44:59,950 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 16:44:59,950 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 16:44:59,950 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 16:44:59,950 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 16:44:59,951 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 16:44:59,951 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 16:44:59,951 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 16:44:59,951 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 16:44:59,951 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 16:44:59,951 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 16:44:59,951 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 16:44:59,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:44:59,952 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 16:44:59,952 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 16:44:59,953 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 16:44:59,953 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 16:44:59,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 16:44:59,954 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 16:44:59,954 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 16:44:59,954 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 16:44:59,954 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 16:44:59,955 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5fb3c623242420f3b3352ce2377df781fcc1efd56f82dd0011f9620e127821b3 [2024-10-11 16:45:00,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 16:45:00,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 16:45:00,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 16:45:00,159 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 16:45:00,159 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 16:45:00,160 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longest.i [2024-10-11 16:45:01,363 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 16:45:01,573 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 16:45:01,574 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longest.i [2024-10-11 16:45:01,590 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/fc5434b7e/5bbc0201162245bba93ac902cea6dfb8/FLAGa960c7c7b [2024-10-11 16:45:01,601 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/fc5434b7e/5bbc0201162245bba93ac902cea6dfb8 [2024-10-11 16:45:01,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 16:45:01,604 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 16:45:01,605 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 16:45:01,606 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 16:45:01,609 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 16:45:01,610 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:45:01" (1/1) ... [2024-10-11 16:45:01,611 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67b6c803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:01, skipping insertion in model container [2024-10-11 16:45:01,611 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:45:01" (1/1) ... [2024-10-11 16:45:01,649 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 16:45:02,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:45:02,027 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 16:45:02,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:45:02,164 INFO L204 MainTranslator]: Completed translation [2024-10-11 16:45:02,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:02 WrapperNode [2024-10-11 16:45:02,165 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 16:45:02,166 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 16:45:02,167 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 16:45:02,167 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 16:45:02,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:02" (1/1) ... [2024-10-11 16:45:02,202 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:02" (1/1) ... [2024-10-11 16:45:02,240 INFO L138 Inliner]: procedures = 274, calls = 56, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 474 [2024-10-11 16:45:02,240 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 16:45:02,241 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 16:45:02,241 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 16:45:02,241 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 16:45:02,250 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:02" (1/1) ... [2024-10-11 16:45:02,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:02" (1/1) ... [2024-10-11 16:45:02,262 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:02" (1/1) ... [2024-10-11 16:45:02,263 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:02" (1/1) ... [2024-10-11 16:45:02,287 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:02" (1/1) ... [2024-10-11 16:45:02,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:02" (1/1) ... [2024-10-11 16:45:02,293 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:02" (1/1) ... [2024-10-11 16:45:02,295 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:02" (1/1) ... [2024-10-11 16:45:02,298 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 16:45:02,299 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 16:45:02,299 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 16:45:02,299 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 16:45:02,300 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:02" (1/1) ... [2024-10-11 16:45:02,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:45:02,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:02,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 16:45:02,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 16:45:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-10-11 16:45:02,386 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-10-11 16:45:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-10-11 16:45:02,386 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-10-11 16:45:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 16:45:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 16:45:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 16:45:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 16:45:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 16:45:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 16:45:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 16:45:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 16:45:02,388 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 16:45:02,522 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 16:45:02,525 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 16:45:03,096 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 16:45:03,097 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 16:45:03,135 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 16:45:03,135 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 16:45:03,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:45:03 BoogieIcfgContainer [2024-10-11 16:45:03,136 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 16:45:03,150 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 16:45:03,151 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 16:45:03,156 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 16:45:03,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:45:01" (1/3) ... [2024-10-11 16:45:03,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e325b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:45:03, skipping insertion in model container [2024-10-11 16:45:03,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:02" (2/3) ... [2024-10-11 16:45:03,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e325b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:45:03, skipping insertion in model container [2024-10-11 16:45:03,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:45:03" (3/3) ... [2024-10-11 16:45:03,162 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_longest.i [2024-10-11 16:45:03,175 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 16:45:03,175 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-10-11 16:45:03,175 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 16:45:03,341 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 16:45:03,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 534 places, 545 transitions, 1104 flow [2024-10-11 16:45:03,587 INFO L124 PetriNetUnfolderBase]: 18/543 cut-off events. [2024-10-11 16:45:03,588 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 16:45:03,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 543 events. 18/543 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 733 event pairs, 0 based on Foata normal form. 0/483 useless extension candidates. Maximal degree in co-relation 423. Up to 2 conditions per place. [2024-10-11 16:45:03,601 INFO L82 GeneralOperation]: Start removeDead. Operand has 534 places, 545 transitions, 1104 flow [2024-10-11 16:45:03,610 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 527 places, 538 transitions, 1085 flow [2024-10-11 16:45:03,620 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:45:03,626 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;@176e2088, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:45:03,626 INFO L334 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2024-10-11 16:45:03,630 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:45:03,630 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-10-11 16:45:03,631 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:45:03,631 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:03,631 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:03,632 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:03,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:03,636 INFO L85 PathProgramCache]: Analyzing trace with hash 184386952, now seen corresponding path program 1 times [2024-10-11 16:45:03,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:03,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157531156] [2024-10-11 16:45:03,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:03,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:03,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:03,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:03,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157531156] [2024-10-11 16:45:03,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157531156] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:03,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:03,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:03,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041636134] [2024-10-11 16:45:03,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:03,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:03,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:03,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:03,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:03,925 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 545 [2024-10-11 16:45:03,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 538 transitions, 1085 flow. Second operand has 3 states, 3 states have (on average 514.3333333333334) internal successors, (1543), 3 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:03,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:03,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 545 [2024-10-11 16:45:03,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:04,197 INFO L124 PetriNetUnfolderBase]: 61/1637 cut-off events. [2024-10-11 16:45:04,198 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-11 16:45:04,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1732 conditions, 1637 events. 61/1637 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 7596 event pairs, 27 based on Foata normal form. 38/1498 useless extension candidates. Maximal degree in co-relation 1595. Up to 70 conditions per place. [2024-10-11 16:45:04,210 INFO L140 encePairwiseOnDemand]: 535/545 looper letters, 15 selfloop transitions, 2 changer transitions 0/519 dead transitions. [2024-10-11 16:45:04,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 519 transitions, 1081 flow [2024-10-11 16:45:04,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:04,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:04,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1564 transitions. [2024-10-11 16:45:04,227 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9565749235474006 [2024-10-11 16:45:04,229 INFO L175 Difference]: Start difference. First operand has 527 places, 538 transitions, 1085 flow. Second operand 3 states and 1564 transitions. [2024-10-11 16:45:04,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 519 transitions, 1081 flow [2024-10-11 16:45:04,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 519 transitions, 1076 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 16:45:04,244 INFO L231 Difference]: Finished difference. Result has 515 places, 519 transitions, 1046 flow [2024-10-11 16:45:04,246 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1042, PETRI_DIFFERENCE_MINUEND_PLACES=513, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1046, PETRI_PLACES=515, PETRI_TRANSITIONS=519} [2024-10-11 16:45:04,250 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -12 predicate places. [2024-10-11 16:45:04,250 INFO L471 AbstractCegarLoop]: Abstraction has has 515 places, 519 transitions, 1046 flow [2024-10-11 16:45:04,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 514.3333333333334) internal successors, (1543), 3 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:04,251 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:04,252 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:04,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 16:45:04,252 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:04,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:04,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1794494119, now seen corresponding path program 1 times [2024-10-11 16:45:04,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:04,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288506462] [2024-10-11 16:45:04,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:04,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:04,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:04,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:04,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:04,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288506462] [2024-10-11 16:45:04,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288506462] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:04,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:04,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:04,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223893069] [2024-10-11 16:45:04,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:04,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:04,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:04,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:04,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:04,360 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 545 [2024-10-11 16:45:04,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 519 transitions, 1046 flow. Second operand has 3 states, 3 states have (on average 514.3333333333334) internal successors, (1543), 3 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:04,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:04,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 545 [2024-10-11 16:45:04,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:04,625 INFO L124 PetriNetUnfolderBase]: 69/1911 cut-off events. [2024-10-11 16:45:04,626 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-11 16:45:04,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2004 conditions, 1911 events. 69/1911 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 9575 event pairs, 29 based on Foata normal form. 0/1706 useless extension candidates. Maximal degree in co-relation 1968. Up to 74 conditions per place. [2024-10-11 16:45:04,638 INFO L140 encePairwiseOnDemand]: 542/545 looper letters, 15 selfloop transitions, 2 changer transitions 0/518 dead transitions. [2024-10-11 16:45:04,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 518 transitions, 1078 flow [2024-10-11 16:45:04,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:04,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:04,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1557 transitions. [2024-10-11 16:45:04,642 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9522935779816514 [2024-10-11 16:45:04,642 INFO L175 Difference]: Start difference. First operand has 515 places, 519 transitions, 1046 flow. Second operand 3 states and 1557 transitions. [2024-10-11 16:45:04,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 518 transitions, 1078 flow [2024-10-11 16:45:04,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 518 transitions, 1074 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:04,649 INFO L231 Difference]: Finished difference. Result has 514 places, 518 transitions, 1044 flow [2024-10-11 16:45:04,649 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1040, PETRI_DIFFERENCE_MINUEND_PLACES=512, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=518, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1044, PETRI_PLACES=514, PETRI_TRANSITIONS=518} [2024-10-11 16:45:04,650 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -13 predicate places. [2024-10-11 16:45:04,650 INFO L471 AbstractCegarLoop]: Abstraction has has 514 places, 518 transitions, 1044 flow [2024-10-11 16:45:04,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 514.3333333333334) internal successors, (1543), 3 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:04,651 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:04,651 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:04,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 16:45:04,652 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:04,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:04,653 INFO L85 PathProgramCache]: Analyzing trace with hash 2067411053, now seen corresponding path program 1 times [2024-10-11 16:45:04,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:04,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643097585] [2024-10-11 16:45:04,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:04,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:05,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:05,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:05,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643097585] [2024-10-11 16:45:05,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643097585] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:05,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:05,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:05,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153351670] [2024-10-11 16:45:05,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:05,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:05,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:05,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:05,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:05,654 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 545 [2024-10-11 16:45:05,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 518 transitions, 1044 flow. Second operand has 6 states, 6 states have (on average 389.3333333333333) internal successors, (2336), 6 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:05,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:05,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 545 [2024-10-11 16:45:05,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:07,692 INFO L124 PetriNetUnfolderBase]: 3722/15130 cut-off events. [2024-10-11 16:45:07,692 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-11 16:45:07,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22228 conditions, 15130 events. 3722/15130 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 137381 event pairs, 3314 based on Foata normal form. 0/13666 useless extension candidates. Maximal degree in co-relation 22188. Up to 6918 conditions per place. [2024-10-11 16:45:07,845 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 138 selfloop transitions, 5 changer transitions 0/517 dead transitions. [2024-10-11 16:45:07,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 517 transitions, 1328 flow [2024-10-11 16:45:07,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:07,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:07,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2472 transitions. [2024-10-11 16:45:07,850 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7559633027522936 [2024-10-11 16:45:07,850 INFO L175 Difference]: Start difference. First operand has 514 places, 518 transitions, 1044 flow. Second operand 6 states and 2472 transitions. [2024-10-11 16:45:07,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 517 transitions, 1328 flow [2024-10-11 16:45:07,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 517 transitions, 1324 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:07,858 INFO L231 Difference]: Finished difference. Result has 516 places, 517 transitions, 1048 flow [2024-10-11 16:45:07,858 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1038, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=512, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1048, PETRI_PLACES=516, PETRI_TRANSITIONS=517} [2024-10-11 16:45:07,859 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -11 predicate places. [2024-10-11 16:45:07,859 INFO L471 AbstractCegarLoop]: Abstraction has has 516 places, 517 transitions, 1048 flow [2024-10-11 16:45:07,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 389.3333333333333) internal successors, (2336), 6 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:07,861 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:07,861 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:07,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 16:45:07,861 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:07,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:07,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1539044538, now seen corresponding path program 1 times [2024-10-11 16:45:07,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:07,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824868946] [2024-10-11 16:45:07,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:07,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:07,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:08,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:08,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:08,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824868946] [2024-10-11 16:45:08,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824868946] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:08,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:08,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:08,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058966467] [2024-10-11 16:45:08,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:08,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:08,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:08,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:08,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:08,567 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 545 [2024-10-11 16:45:08,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 517 transitions, 1048 flow. Second operand has 6 states, 6 states have (on average 389.3333333333333) internal successors, (2336), 6 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:08,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:08,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 545 [2024-10-11 16:45:08,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:10,395 INFO L124 PetriNetUnfolderBase]: 3722/15129 cut-off events. [2024-10-11 16:45:10,396 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-11 16:45:10,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22230 conditions, 15129 events. 3722/15129 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 137592 event pairs, 3314 based on Foata normal form. 0/13666 useless extension candidates. Maximal degree in co-relation 22174. Up to 6918 conditions per place. [2024-10-11 16:45:10,467 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 138 selfloop transitions, 5 changer transitions 0/516 dead transitions. [2024-10-11 16:45:10,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 516 transitions, 1332 flow [2024-10-11 16:45:10,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:10,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:10,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2472 transitions. [2024-10-11 16:45:10,473 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7559633027522936 [2024-10-11 16:45:10,473 INFO L175 Difference]: Start difference. First operand has 516 places, 517 transitions, 1048 flow. Second operand 6 states and 2472 transitions. [2024-10-11 16:45:10,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 516 transitions, 1332 flow [2024-10-11 16:45:10,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 516 transitions, 1322 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:10,480 INFO L231 Difference]: Finished difference. Result has 515 places, 516 transitions, 1046 flow [2024-10-11 16:45:10,481 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1036, PETRI_DIFFERENCE_MINUEND_PLACES=510, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=516, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1046, PETRI_PLACES=515, PETRI_TRANSITIONS=516} [2024-10-11 16:45:10,482 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -12 predicate places. [2024-10-11 16:45:10,482 INFO L471 AbstractCegarLoop]: Abstraction has has 515 places, 516 transitions, 1046 flow [2024-10-11 16:45:10,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 389.3333333333333) internal successors, (2336), 6 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:10,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:10,483 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:10,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 16:45:10,484 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:10,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:10,484 INFO L85 PathProgramCache]: Analyzing trace with hash 382549686, now seen corresponding path program 1 times [2024-10-11 16:45:10,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:10,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403702006] [2024-10-11 16:45:10,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:10,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:10,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:10,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:10,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403702006] [2024-10-11 16:45:10,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403702006] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:10,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:10,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:10,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120655435] [2024-10-11 16:45:10,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:10,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:10,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:10,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:10,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:11,342 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 545 [2024-10-11 16:45:11,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 516 transitions, 1046 flow. Second operand has 6 states, 6 states have (on average 389.3333333333333) internal successors, (2336), 6 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:11,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:11,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 545 [2024-10-11 16:45:11,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:13,158 INFO L124 PetriNetUnfolderBase]: 3722/15128 cut-off events. [2024-10-11 16:45:13,158 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-11 16:45:13,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22229 conditions, 15128 events. 3722/15128 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 137351 event pairs, 3314 based on Foata normal form. 0/13666 useless extension candidates. Maximal degree in co-relation 22165. Up to 6918 conditions per place. [2024-10-11 16:45:13,213 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 138 selfloop transitions, 5 changer transitions 0/515 dead transitions. [2024-10-11 16:45:13,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 515 transitions, 1330 flow [2024-10-11 16:45:13,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:13,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:13,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2472 transitions. [2024-10-11 16:45:13,218 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7559633027522936 [2024-10-11 16:45:13,218 INFO L175 Difference]: Start difference. First operand has 515 places, 516 transitions, 1046 flow. Second operand 6 states and 2472 transitions. [2024-10-11 16:45:13,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 515 transitions, 1330 flow [2024-10-11 16:45:13,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 515 transitions, 1320 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:13,224 INFO L231 Difference]: Finished difference. Result has 514 places, 515 transitions, 1044 flow [2024-10-11 16:45:13,224 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1034, PETRI_DIFFERENCE_MINUEND_PLACES=509, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=515, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=510, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1044, PETRI_PLACES=514, PETRI_TRANSITIONS=515} [2024-10-11 16:45:13,225 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -13 predicate places. [2024-10-11 16:45:13,225 INFO L471 AbstractCegarLoop]: Abstraction has has 514 places, 515 transitions, 1044 flow [2024-10-11 16:45:13,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 389.3333333333333) internal successors, (2336), 6 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:13,226 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:13,227 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:13,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 16:45:13,227 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:13,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:13,227 INFO L85 PathProgramCache]: Analyzing trace with hash 504962579, now seen corresponding path program 1 times [2024-10-11 16:45:13,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:13,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630461492] [2024-10-11 16:45:13,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:13,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:13,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:13,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:13,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630461492] [2024-10-11 16:45:13,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630461492] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:13,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:13,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:13,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080440193] [2024-10-11 16:45:13,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:13,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:13,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:13,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:13,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:14,359 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 545 [2024-10-11 16:45:14,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 514 places, 515 transitions, 1044 flow. Second operand has 6 states, 6 states have (on average 453.1666666666667) internal successors, (2719), 6 states have internal predecessors, (2719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:14,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:14,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 545 [2024-10-11 16:45:14,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:15,142 INFO L124 PetriNetUnfolderBase]: 858/5626 cut-off events. [2024-10-11 16:45:15,142 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-11 16:45:15,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7230 conditions, 5626 events. 858/5626 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 45934 event pairs, 674 based on Foata normal form. 0/5010 useless extension candidates. Maximal degree in co-relation 7148. Up to 1501 conditions per place. [2024-10-11 16:45:15,171 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 76 selfloop transitions, 5 changer transitions 0/514 dead transitions. [2024-10-11 16:45:15,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 514 transitions, 1204 flow [2024-10-11 16:45:15,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:15,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:15,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2782 transitions. [2024-10-11 16:45:15,177 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8507645259938837 [2024-10-11 16:45:15,177 INFO L175 Difference]: Start difference. First operand has 514 places, 515 transitions, 1044 flow. Second operand 6 states and 2782 transitions. [2024-10-11 16:45:15,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 514 transitions, 1204 flow [2024-10-11 16:45:15,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 514 transitions, 1194 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:15,184 INFO L231 Difference]: Finished difference. Result has 513 places, 514 transitions, 1042 flow [2024-10-11 16:45:15,185 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1032, PETRI_DIFFERENCE_MINUEND_PLACES=508, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=514, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=509, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1042, PETRI_PLACES=513, PETRI_TRANSITIONS=514} [2024-10-11 16:45:15,185 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -14 predicate places. [2024-10-11 16:45:15,185 INFO L471 AbstractCegarLoop]: Abstraction has has 513 places, 514 transitions, 1042 flow [2024-10-11 16:45:15,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 453.1666666666667) internal successors, (2719), 6 states have internal predecessors, (2719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:15,187 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:15,187 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:15,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 16:45:15,187 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:15,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:15,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1691233872, now seen corresponding path program 1 times [2024-10-11 16:45:15,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:15,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922857063] [2024-10-11 16:45:15,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:15,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:15,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:15,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:15,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922857063] [2024-10-11 16:45:15,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922857063] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:15,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:15,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:15,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151147893] [2024-10-11 16:45:15,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:15,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:15,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:15,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:15,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:16,299 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 545 [2024-10-11 16:45:16,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 514 transitions, 1042 flow. Second operand has 6 states, 6 states have (on average 453.1666666666667) internal successors, (2719), 6 states have internal predecessors, (2719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:16,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:16,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 545 [2024-10-11 16:45:16,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:16,851 INFO L124 PetriNetUnfolderBase]: 858/5625 cut-off events. [2024-10-11 16:45:16,852 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-11 16:45:16,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7229 conditions, 5625 events. 858/5625 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 45623 event pairs, 674 based on Foata normal form. 0/5010 useless extension candidates. Maximal degree in co-relation 7109. Up to 1501 conditions per place. [2024-10-11 16:45:16,878 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 76 selfloop transitions, 5 changer transitions 0/513 dead transitions. [2024-10-11 16:45:16,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 513 transitions, 1202 flow [2024-10-11 16:45:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:16,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:16,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2782 transitions. [2024-10-11 16:45:16,883 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8507645259938837 [2024-10-11 16:45:16,883 INFO L175 Difference]: Start difference. First operand has 513 places, 514 transitions, 1042 flow. Second operand 6 states and 2782 transitions. [2024-10-11 16:45:16,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 513 transitions, 1202 flow [2024-10-11 16:45:16,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 512 places, 513 transitions, 1192 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:16,890 INFO L231 Difference]: Finished difference. Result has 512 places, 513 transitions, 1040 flow [2024-10-11 16:45:16,891 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=507, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=513, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1040, PETRI_PLACES=512, PETRI_TRANSITIONS=513} [2024-10-11 16:45:16,891 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -15 predicate places. [2024-10-11 16:45:16,891 INFO L471 AbstractCegarLoop]: Abstraction has has 512 places, 513 transitions, 1040 flow [2024-10-11 16:45:16,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 453.1666666666667) internal successors, (2719), 6 states have internal predecessors, (2719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:16,893 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:16,893 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:16,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 16:45:16,893 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:16,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:16,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1648747429, now seen corresponding path program 1 times [2024-10-11 16:45:16,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:16,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737308864] [2024-10-11 16:45:16,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:16,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:16,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:16,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:16,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737308864] [2024-10-11 16:45:16,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737308864] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:16,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:16,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:16,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135471433] [2024-10-11 16:45:16,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:16,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:16,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:16,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:16,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:16,980 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 517 out of 545 [2024-10-11 16:45:16,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 513 transitions, 1040 flow. Second operand has 3 states, 3 states have (on average 519.0) internal successors, (1557), 3 states have internal predecessors, (1557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:16,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:16,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 517 of 545 [2024-10-11 16:45:16,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:17,334 INFO L124 PetriNetUnfolderBase]: 114/2629 cut-off events. [2024-10-11 16:45:17,334 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-11 16:45:17,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2796 conditions, 2629 events. 114/2629 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 13996 event pairs, 25 based on Foata normal form. 0/2333 useless extension candidates. Maximal degree in co-relation 2695. Up to 88 conditions per place. [2024-10-11 16:45:17,352 INFO L140 encePairwiseOnDemand]: 540/545 looper letters, 22 selfloop transitions, 4 changer transitions 0/524 dead transitions. [2024-10-11 16:45:17,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 524 transitions, 1115 flow [2024-10-11 16:45:17,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:17,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:17,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1578 transitions. [2024-10-11 16:45:17,355 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9651376146788991 [2024-10-11 16:45:17,355 INFO L175 Difference]: Start difference. First operand has 512 places, 513 transitions, 1040 flow. Second operand 3 states and 1578 transitions. [2024-10-11 16:45:17,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 524 transitions, 1115 flow [2024-10-11 16:45:17,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 509 places, 524 transitions, 1105 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:17,365 INFO L231 Difference]: Finished difference. Result has 511 places, 517 transitions, 1064 flow [2024-10-11 16:45:17,365 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=507, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=513, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=509, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1064, PETRI_PLACES=511, PETRI_TRANSITIONS=517} [2024-10-11 16:45:17,366 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -16 predicate places. [2024-10-11 16:45:17,366 INFO L471 AbstractCegarLoop]: Abstraction has has 511 places, 517 transitions, 1064 flow [2024-10-11 16:45:17,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 519.0) internal successors, (1557), 3 states have internal predecessors, (1557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:17,367 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:17,367 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:17,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 16:45:17,368 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:17,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:17,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1833150553, now seen corresponding path program 1 times [2024-10-11 16:45:17,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:17,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840061414] [2024-10-11 16:45:17,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:17,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:17,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:18,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:18,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:18,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840061414] [2024-10-11 16:45:18,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840061414] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:18,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:18,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-11 16:45:18,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907389445] [2024-10-11 16:45:18,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:18,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 16:45:18,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:18,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 16:45:18,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-10-11 16:45:19,759 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 545 [2024-10-11 16:45:19,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 517 transitions, 1064 flow. Second operand has 13 states, 13 states have (on average 487.9230769230769) internal successors, (6343), 13 states have internal predecessors, (6343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:19,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:19,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 545 [2024-10-11 16:45:19,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:20,535 INFO L124 PetriNetUnfolderBase]: 251/4151 cut-off events. [2024-10-11 16:45:20,536 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-10-11 16:45:20,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4653 conditions, 4151 events. 251/4151 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 28777 event pairs, 81 based on Foata normal form. 0/3693 useless extension candidates. Maximal degree in co-relation 4177. Up to 356 conditions per place. [2024-10-11 16:45:20,565 INFO L140 encePairwiseOnDemand]: 527/545 looper letters, 32 selfloop transitions, 17 changer transitions 0/519 dead transitions. [2024-10-11 16:45:20,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 519 transitions, 1168 flow [2024-10-11 16:45:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 16:45:20,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 16:45:20,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 5882 transitions. [2024-10-11 16:45:20,576 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.899388379204893 [2024-10-11 16:45:20,576 INFO L175 Difference]: Start difference. First operand has 511 places, 517 transitions, 1064 flow. Second operand 12 states and 5882 transitions. [2024-10-11 16:45:20,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 519 transitions, 1168 flow [2024-10-11 16:45:20,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 517 places, 519 transitions, 1160 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:20,585 INFO L231 Difference]: Finished difference. Result has 518 places, 515 transitions, 1097 flow [2024-10-11 16:45:20,586 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1048, PETRI_DIFFERENCE_MINUEND_PLACES=506, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=513, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1097, PETRI_PLACES=518, PETRI_TRANSITIONS=515} [2024-10-11 16:45:20,587 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -9 predicate places. [2024-10-11 16:45:20,587 INFO L471 AbstractCegarLoop]: Abstraction has has 518 places, 515 transitions, 1097 flow [2024-10-11 16:45:20,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 487.9230769230769) internal successors, (6343), 13 states have internal predecessors, (6343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:20,594 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:20,594 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:20,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 16:45:20,595 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:20,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:20,595 INFO L85 PathProgramCache]: Analyzing trace with hash -2140385120, now seen corresponding path program 1 times [2024-10-11 16:45:20,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:20,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751481797] [2024-10-11 16:45:20,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:20,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:20,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:20,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:20,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:20,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751481797] [2024-10-11 16:45:20,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751481797] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:20,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:20,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:20,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89549378] [2024-10-11 16:45:20,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:20,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:20,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:20,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:20,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:21,848 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 421 out of 545 [2024-10-11 16:45:21,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 518 places, 515 transitions, 1097 flow. Second operand has 6 states, 6 states have (on average 424.5) internal successors, (2547), 6 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:21,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:21,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 421 of 545 [2024-10-11 16:45:21,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:23,983 INFO L124 PetriNetUnfolderBase]: 3134/14428 cut-off events. [2024-10-11 16:45:23,983 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-10-11 16:45:24,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20717 conditions, 14428 events. 3134/14428 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 132033 event pairs, 1321 based on Foata normal form. 0/13026 useless extension candidates. Maximal degree in co-relation 19926. Up to 4553 conditions per place. [2024-10-11 16:45:24,062 INFO L140 encePairwiseOnDemand]: 491/545 looper letters, 125 selfloop transitions, 84 changer transitions 0/613 dead transitions. [2024-10-11 16:45:24,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 523 places, 613 transitions, 1719 flow [2024-10-11 16:45:24,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:24,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:24,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2741 transitions. [2024-10-11 16:45:24,069 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8382262996941896 [2024-10-11 16:45:24,069 INFO L175 Difference]: Start difference. First operand has 518 places, 515 transitions, 1097 flow. Second operand 6 states and 2741 transitions. [2024-10-11 16:45:24,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 523 places, 613 transitions, 1719 flow [2024-10-11 16:45:24,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 613 transitions, 1692 flow, removed 0 selfloop flow, removed 10 redundant places. [2024-10-11 16:45:24,079 INFO L231 Difference]: Finished difference. Result has 518 places, 595 transitions, 1666 flow [2024-10-11 16:45:24,080 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1070, PETRI_DIFFERENCE_MINUEND_PLACES=508, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=515, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1666, PETRI_PLACES=518, PETRI_TRANSITIONS=595} [2024-10-11 16:45:24,080 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -9 predicate places. [2024-10-11 16:45:24,081 INFO L471 AbstractCegarLoop]: Abstraction has has 518 places, 595 transitions, 1666 flow [2024-10-11 16:45:24,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 424.5) internal successors, (2547), 6 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:24,082 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:24,082 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:24,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 16:45:24,082 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:24,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:24,083 INFO L85 PathProgramCache]: Analyzing trace with hash 724346284, now seen corresponding path program 1 times [2024-10-11 16:45:24,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:24,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767302984] [2024-10-11 16:45:24,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:24,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:24,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:24,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:24,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767302984] [2024-10-11 16:45:24,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767302984] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:24,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:24,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 16:45:24,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262121314] [2024-10-11 16:45:24,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:24,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:24,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:24,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:24,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:24,257 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 518 out of 545 [2024-10-11 16:45:24,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 518 places, 595 transitions, 1666 flow. Second operand has 3 states, 3 states have (on average 520.0) internal successors, (1560), 3 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:24,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:24,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 518 of 545 [2024-10-11 16:45:24,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:25,528 INFO L124 PetriNetUnfolderBase]: 990/8697 cut-off events. [2024-10-11 16:45:25,528 INFO L125 PetriNetUnfolderBase]: For 621/633 co-relation queries the response was YES. [2024-10-11 16:45:25,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12457 conditions, 8697 events. 990/8697 cut-off events. For 621/633 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 73822 event pairs, 110 based on Foata normal form. 24/7934 useless extension candidates. Maximal degree in co-relation 11823. Up to 966 conditions per place. [2024-10-11 16:45:25,557 INFO L140 encePairwiseOnDemand]: 541/545 looper letters, 18 selfloop transitions, 3 changer transitions 0/581 dead transitions. [2024-10-11 16:45:25,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 581 transitions, 1627 flow [2024-10-11 16:45:25,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:25,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:25,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1576 transitions. [2024-10-11 16:45:25,560 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.963914373088685 [2024-10-11 16:45:25,560 INFO L175 Difference]: Start difference. First operand has 518 places, 595 transitions, 1666 flow. Second operand 3 states and 1576 transitions. [2024-10-11 16:45:25,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 581 transitions, 1627 flow [2024-10-11 16:45:25,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 581 transitions, 1599 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:25,572 INFO L231 Difference]: Finished difference. Result has 516 places, 575 transitions, 1555 flow [2024-10-11 16:45:25,573 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1540, PETRI_DIFFERENCE_MINUEND_PLACES=513, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=574, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=571, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1555, PETRI_PLACES=516, PETRI_TRANSITIONS=575} [2024-10-11 16:45:25,573 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -11 predicate places. [2024-10-11 16:45:25,574 INFO L471 AbstractCegarLoop]: Abstraction has has 516 places, 575 transitions, 1555 flow [2024-10-11 16:45:25,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 520.0) internal successors, (1560), 3 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:25,574 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:25,574 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:25,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 16:45:25,575 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:25,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:25,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1224579267, now seen corresponding path program 1 times [2024-10-11 16:45:25,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:25,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425586258] [2024-10-11 16:45:25,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:25,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:25,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:25,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:25,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425586258] [2024-10-11 16:45:25,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425586258] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:25,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:25,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:25,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649778316] [2024-10-11 16:45:25,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:25,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:25,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:25,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:25,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:26,340 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 545 [2024-10-11 16:45:26,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 575 transitions, 1555 flow. Second operand has 6 states, 6 states have (on average 374.8333333333333) internal successors, (2249), 6 states have internal predecessors, (2249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:26,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:26,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 545 [2024-10-11 16:45:26,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:29,816 INFO L124 PetriNetUnfolderBase]: 6037/22353 cut-off events. [2024-10-11 16:45:29,816 INFO L125 PetriNetUnfolderBase]: For 4260/4491 co-relation queries the response was YES. [2024-10-11 16:45:29,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40931 conditions, 22353 events. 6037/22353 cut-off events. For 4260/4491 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 221950 event pairs, 3626 based on Foata normal form. 30/20339 useless extension candidates. Maximal degree in co-relation 39596. Up to 11092 conditions per place. [2024-10-11 16:45:29,943 INFO L140 encePairwiseOnDemand]: 496/545 looper letters, 228 selfloop transitions, 156 changer transitions 0/735 dead transitions. [2024-10-11 16:45:29,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 735 transitions, 2747 flow [2024-10-11 16:45:29,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:29,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:29,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2539 transitions. [2024-10-11 16:45:29,948 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7764525993883792 [2024-10-11 16:45:29,948 INFO L175 Difference]: Start difference. First operand has 516 places, 575 transitions, 1555 flow. Second operand 6 states and 2539 transitions. [2024-10-11 16:45:29,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 735 transitions, 2747 flow [2024-10-11 16:45:29,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 519 places, 735 transitions, 2744 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:29,970 INFO L231 Difference]: Finished difference. Result has 524 places, 723 transitions, 2652 flow [2024-10-11 16:45:29,971 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=1550, PETRI_DIFFERENCE_MINUEND_PLACES=514, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=574, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=526, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2652, PETRI_PLACES=524, PETRI_TRANSITIONS=723} [2024-10-11 16:45:29,972 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -3 predicate places. [2024-10-11 16:45:29,972 INFO L471 AbstractCegarLoop]: Abstraction has has 524 places, 723 transitions, 2652 flow [2024-10-11 16:45:29,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 374.8333333333333) internal successors, (2249), 6 states have internal predecessors, (2249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:29,972 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:29,973 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:29,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 16:45:29,973 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:29,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:29,973 INFO L85 PathProgramCache]: Analyzing trace with hash 767111874, now seen corresponding path program 1 times [2024-10-11 16:45:29,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:29,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947192349] [2024-10-11 16:45:29,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:29,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:30,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:30,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:30,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947192349] [2024-10-11 16:45:30,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947192349] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:30,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:30,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:30,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141471696] [2024-10-11 16:45:30,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:30,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:30,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:30,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:30,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:31,206 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 545 [2024-10-11 16:45:31,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 723 transitions, 2652 flow. Second operand has 6 states, 6 states have (on average 459.1666666666667) internal successors, (2755), 6 states have internal predecessors, (2755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:31,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:31,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 545 [2024-10-11 16:45:31,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:33,230 INFO L124 PetriNetUnfolderBase]: 2727/14385 cut-off events. [2024-10-11 16:45:33,231 INFO L125 PetriNetUnfolderBase]: For 4611/5292 co-relation queries the response was YES. [2024-10-11 16:45:33,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27397 conditions, 14385 events. 2727/14385 cut-off events. For 4611/5292 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 139874 event pairs, 749 based on Foata normal form. 51/13145 useless extension candidates. Maximal degree in co-relation 26423. Up to 3595 conditions per place. [2024-10-11 16:45:33,300 INFO L140 encePairwiseOnDemand]: 520/545 looper letters, 182 selfloop transitions, 59 changer transitions 0/787 dead transitions. [2024-10-11 16:45:33,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 787 transitions, 3462 flow [2024-10-11 16:45:33,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:33,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:33,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2873 transitions. [2024-10-11 16:45:33,304 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8785932721712538 [2024-10-11 16:45:33,304 INFO L175 Difference]: Start difference. First operand has 524 places, 723 transitions, 2652 flow. Second operand 6 states and 2873 transitions. [2024-10-11 16:45:33,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 787 transitions, 3462 flow [2024-10-11 16:45:33,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 787 transitions, 3366 flow, removed 48 selfloop flow, removed 0 redundant places. [2024-10-11 16:45:33,329 INFO L231 Difference]: Finished difference. Result has 533 places, 775 transitions, 3124 flow [2024-10-11 16:45:33,330 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=2554, PETRI_DIFFERENCE_MINUEND_PLACES=523, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=722, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=699, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3124, PETRI_PLACES=533, PETRI_TRANSITIONS=775} [2024-10-11 16:45:33,330 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, 6 predicate places. [2024-10-11 16:45:33,331 INFO L471 AbstractCegarLoop]: Abstraction has has 533 places, 775 transitions, 3124 flow [2024-10-11 16:45:33,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 459.1666666666667) internal successors, (2755), 6 states have internal predecessors, (2755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:33,332 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:33,332 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:33,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 16:45:33,332 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:33,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:33,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1826880967, now seen corresponding path program 1 times [2024-10-11 16:45:33,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:33,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67688735] [2024-10-11 16:45:33,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:33,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:33,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:33,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:33,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67688735] [2024-10-11 16:45:33,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67688735] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:33,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:33,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:33,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572396612] [2024-10-11 16:45:33,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:33,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:33,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:33,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:33,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:34,327 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 545 [2024-10-11 16:45:34,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 533 places, 775 transitions, 3124 flow. Second operand has 6 states, 6 states have (on average 417.5) internal successors, (2505), 6 states have internal predecessors, (2505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:34,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:34,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 545 [2024-10-11 16:45:34,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:37,601 INFO L124 PetriNetUnfolderBase]: 4709/19168 cut-off events. [2024-10-11 16:45:37,602 INFO L125 PetriNetUnfolderBase]: For 8408/8742 co-relation queries the response was YES. [2024-10-11 16:45:37,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41167 conditions, 19168 events. 4709/19168 cut-off events. For 8408/8742 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 188948 event pairs, 1581 based on Foata normal form. 59/17580 useless extension candidates. Maximal degree in co-relation 40081. Up to 7811 conditions per place. [2024-10-11 16:45:37,750 INFO L140 encePairwiseOnDemand]: 496/545 looper letters, 374 selfloop transitions, 156 changer transitions 0/935 dead transitions. [2024-10-11 16:45:37,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 537 places, 935 transitions, 4992 flow [2024-10-11 16:45:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:37,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:37,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2749 transitions. [2024-10-11 16:45:37,754 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8406727828746178 [2024-10-11 16:45:37,754 INFO L175 Difference]: Start difference. First operand has 533 places, 775 transitions, 3124 flow. Second operand 6 states and 2749 transitions. [2024-10-11 16:45:37,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 537 places, 935 transitions, 4992 flow [2024-10-11 16:45:37,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 537 places, 935 transitions, 4896 flow, removed 48 selfloop flow, removed 0 redundant places. [2024-10-11 16:45:37,792 INFO L231 Difference]: Finished difference. Result has 542 places, 923 transitions, 4512 flow [2024-10-11 16:45:37,793 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=3026, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=774, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=726, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4512, PETRI_PLACES=542, PETRI_TRANSITIONS=923} [2024-10-11 16:45:37,793 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, 15 predicate places. [2024-10-11 16:45:37,793 INFO L471 AbstractCegarLoop]: Abstraction has has 542 places, 923 transitions, 4512 flow [2024-10-11 16:45:37,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 417.5) internal successors, (2505), 6 states have internal predecessors, (2505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:37,794 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:37,794 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:37,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 16:45:37,794 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:37,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:37,794 INFO L85 PathProgramCache]: Analyzing trace with hash 767497366, now seen corresponding path program 1 times [2024-10-11 16:45:37,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:37,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058790083] [2024-10-11 16:45:37,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:37,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:38,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:38,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:38,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058790083] [2024-10-11 16:45:38,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058790083] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:38,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:38,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:38,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326085462] [2024-10-11 16:45:38,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:38,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:38,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:38,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:38,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:38,672 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 545 [2024-10-11 16:45:38,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 923 transitions, 4512 flow. Second operand has 6 states, 6 states have (on average 388.3333333333333) internal successors, (2330), 6 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:38,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:38,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 545 [2024-10-11 16:45:38,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:43,068 INFO L124 PetriNetUnfolderBase]: 7084/25770 cut-off events. [2024-10-11 16:45:43,069 INFO L125 PetriNetUnfolderBase]: For 18979/19397 co-relation queries the response was YES. [2024-10-11 16:45:43,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62975 conditions, 25770 events. 7084/25770 cut-off events. For 18979/19397 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 262135 event pairs, 2895 based on Foata normal form. 58/23724 useless extension candidates. Maximal degree in co-relation 61630. Up to 11984 conditions per place. [2024-10-11 16:45:43,310 INFO L140 encePairwiseOnDemand]: 496/545 looper letters, 558 selfloop transitions, 156 changer transitions 0/1083 dead transitions. [2024-10-11 16:45:43,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 1083 transitions, 7036 flow [2024-10-11 16:45:43,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:43,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:43,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2599 transitions. [2024-10-11 16:45:43,313 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7948012232415902 [2024-10-11 16:45:43,314 INFO L175 Difference]: Start difference. First operand has 542 places, 923 transitions, 4512 flow. Second operand 6 states and 2599 transitions. [2024-10-11 16:45:43,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 1083 transitions, 7036 flow [2024-10-11 16:45:43,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 1083 transitions, 6556 flow, removed 240 selfloop flow, removed 0 redundant places. [2024-10-11 16:45:43,375 INFO L231 Difference]: Finished difference. Result has 551 places, 1071 transitions, 5804 flow [2024-10-11 16:45:43,376 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=4030, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=922, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=874, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5804, PETRI_PLACES=551, PETRI_TRANSITIONS=1071} [2024-10-11 16:45:43,376 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, 24 predicate places. [2024-10-11 16:45:43,377 INFO L471 AbstractCegarLoop]: Abstraction has has 551 places, 1071 transitions, 5804 flow [2024-10-11 16:45:43,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 388.3333333333333) internal successors, (2330), 6 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:43,377 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:43,377 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:43,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 16:45:43,377 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:43,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:43,378 INFO L85 PathProgramCache]: Analyzing trace with hash 2075079204, now seen corresponding path program 1 times [2024-10-11 16:45:43,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:43,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92177070] [2024-10-11 16:45:43,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:43,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:43,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:43,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:43,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:43,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92177070] [2024-10-11 16:45:43,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92177070] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:43,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:43,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:43,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117400909] [2024-10-11 16:45:43,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:43,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:43,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:43,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:43,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:44,260 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 545 [2024-10-11 16:45:44,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 551 places, 1071 transitions, 5804 flow. Second operand has 6 states, 6 states have (on average 389.1666666666667) internal successors, (2335), 6 states have internal predecessors, (2335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:44,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:44,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 545 [2024-10-11 16:45:44,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:49,028 INFO L124 PetriNetUnfolderBase]: 7510/26831 cut-off events. [2024-10-11 16:45:49,028 INFO L125 PetriNetUnfolderBase]: For 28622/29128 co-relation queries the response was YES. [2024-10-11 16:45:49,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72116 conditions, 26831 events. 7510/26831 cut-off events. For 28622/29128 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 273484 event pairs, 2522 based on Foata normal form. 60/24777 useless extension candidates. Maximal degree in co-relation 70749. Up to 12642 conditions per place. [2024-10-11 16:45:49,293 INFO L140 encePairwiseOnDemand]: 496/545 looper letters, 706 selfloop transitions, 156 changer transitions 0/1231 dead transitions. [2024-10-11 16:45:49,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 555 places, 1231 transitions, 8912 flow [2024-10-11 16:45:49,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:49,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:49,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2599 transitions. [2024-10-11 16:45:49,296 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7948012232415902 [2024-10-11 16:45:49,296 INFO L175 Difference]: Start difference. First operand has 551 places, 1071 transitions, 5804 flow. Second operand 6 states and 2599 transitions. [2024-10-11 16:45:49,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 555 places, 1231 transitions, 8912 flow [2024-10-11 16:45:49,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 555 places, 1231 transitions, 8144 flow, removed 384 selfloop flow, removed 0 redundant places. [2024-10-11 16:45:49,371 INFO L231 Difference]: Finished difference. Result has 560 places, 1219 transitions, 7096 flow [2024-10-11 16:45:49,372 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=5034, PETRI_DIFFERENCE_MINUEND_PLACES=550, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1070, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1022, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=7096, PETRI_PLACES=560, PETRI_TRANSITIONS=1219} [2024-10-11 16:45:49,372 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, 33 predicate places. [2024-10-11 16:45:49,373 INFO L471 AbstractCegarLoop]: Abstraction has has 560 places, 1219 transitions, 7096 flow [2024-10-11 16:45:49,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 389.1666666666667) internal successors, (2335), 6 states have internal predecessors, (2335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:49,373 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:49,373 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:49,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 16:45:49,374 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:49,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:49,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1242191085, now seen corresponding path program 1 times [2024-10-11 16:45:49,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:49,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771262678] [2024-10-11 16:45:49,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:49,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:49,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:49,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:49,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771262678] [2024-10-11 16:45:49,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771262678] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:49,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:49,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:49,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578316908] [2024-10-11 16:45:49,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:49,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:49,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:49,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:49,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:50,059 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 545 [2024-10-11 16:45:50,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 1219 transitions, 7096 flow. Second operand has 6 states, 6 states have (on average 390.8333333333333) internal successors, (2345), 6 states have internal predecessors, (2345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:50,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:50,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 545 [2024-10-11 16:45:50,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:54,770 INFO L124 PetriNetUnfolderBase]: 7132/25713 cut-off events. [2024-10-11 16:45:54,770 INFO L125 PetriNetUnfolderBase]: For 36909/37574 co-relation queries the response was YES. [2024-10-11 16:45:54,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74688 conditions, 25713 events. 7132/25713 cut-off events. For 36909/37574 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 261303 event pairs, 2299 based on Foata normal form. 10/23788 useless extension candidates. Maximal degree in co-relation 73287. Up to 12670 conditions per place. [2024-10-11 16:45:55,046 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 857 selfloop transitions, 5 changer transitions 0/1230 dead transitions. [2024-10-11 16:45:55,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 564 places, 1230 transitions, 8850 flow [2024-10-11 16:45:55,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:55,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:55,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2454 transitions. [2024-10-11 16:45:55,049 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7504587155963303 [2024-10-11 16:45:55,049 INFO L175 Difference]: Start difference. First operand has 560 places, 1219 transitions, 7096 flow. Second operand 6 states and 2454 transitions. [2024-10-11 16:45:55,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 564 places, 1230 transitions, 8850 flow [2024-10-11 16:45:55,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 1230 transitions, 7794 flow, removed 528 selfloop flow, removed 0 redundant places. [2024-10-11 16:45:55,131 INFO L231 Difference]: Finished difference. Result has 564 places, 1218 transitions, 6048 flow [2024-10-11 16:45:55,132 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=6038, PETRI_DIFFERENCE_MINUEND_PLACES=559, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6048, PETRI_PLACES=564, PETRI_TRANSITIONS=1218} [2024-10-11 16:45:55,132 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, 37 predicate places. [2024-10-11 16:45:55,132 INFO L471 AbstractCegarLoop]: Abstraction has has 564 places, 1218 transitions, 6048 flow [2024-10-11 16:45:55,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 390.8333333333333) internal successors, (2345), 6 states have internal predecessors, (2345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:55,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:55,133 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:55,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 16:45:55,133 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:55,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:55,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1690604974, now seen corresponding path program 1 times [2024-10-11 16:45:55,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:55,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561611528] [2024-10-11 16:45:55,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:55,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:55,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:55,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:55,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561611528] [2024-10-11 16:45:55,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561611528] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:55,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:55,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:55,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562292947] [2024-10-11 16:45:55,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:55,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:55,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:55,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:55,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:56,205 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 545 [2024-10-11 16:45:56,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 1218 transitions, 6048 flow. Second operand has 6 states, 6 states have (on average 456.1666666666667) internal successors, (2737), 6 states have internal predecessors, (2737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:56,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:56,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 545 [2024-10-11 16:45:56,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:59,611 INFO L124 PetriNetUnfolderBase]: 4958/20284 cut-off events. [2024-10-11 16:45:59,611 INFO L125 PetriNetUnfolderBase]: For 25326/25822 co-relation queries the response was YES. [2024-10-11 16:45:59,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54075 conditions, 20284 events. 4958/20284 cut-off events. For 25326/25822 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 203792 event pairs, 719 based on Foata normal form. 90/18869 useless extension candidates. Maximal degree in co-relation 52933. Up to 5720 conditions per place. [2024-10-11 16:45:59,795 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 392 selfloop transitions, 5 changer transitions 0/1229 dead transitions. [2024-10-11 16:45:59,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 1229 transitions, 6872 flow [2024-10-11 16:45:59,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:59,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:59,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2794 transitions. [2024-10-11 16:45:59,798 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.854434250764526 [2024-10-11 16:45:59,798 INFO L175 Difference]: Start difference. First operand has 564 places, 1218 transitions, 6048 flow. Second operand 6 states and 2794 transitions. [2024-10-11 16:45:59,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 568 places, 1229 transitions, 6872 flow [2024-10-11 16:45:59,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 1229 transitions, 6862 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:59,865 INFO L231 Difference]: Finished difference. Result has 563 places, 1217 transitions, 6046 flow [2024-10-11 16:45:59,866 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=6036, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6046, PETRI_PLACES=563, PETRI_TRANSITIONS=1217} [2024-10-11 16:45:59,866 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, 36 predicate places. [2024-10-11 16:45:59,866 INFO L471 AbstractCegarLoop]: Abstraction has has 563 places, 1217 transitions, 6046 flow [2024-10-11 16:45:59,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 456.1666666666667) internal successors, (2737), 6 states have internal predecessors, (2737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:59,867 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:59,867 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:59,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 16:45:59,868 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:45:59,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:59,868 INFO L85 PathProgramCache]: Analyzing trace with hash -93091950, now seen corresponding path program 1 times [2024-10-11 16:45:59,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:59,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996816437] [2024-10-11 16:45:59,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:59,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:46:00,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:46:00,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:46:00,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996816437] [2024-10-11 16:46:00,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996816437] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:46:00,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:46:00,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:46:00,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082358347] [2024-10-11 16:46:00,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:46:00,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:46:00,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:46:00,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:46:00,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:46:00,776 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 545 [2024-10-11 16:46:00,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 1217 transitions, 6046 flow. Second operand has 6 states, 6 states have (on average 456.1666666666667) internal successors, (2737), 6 states have internal predecessors, (2737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:00,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:46:00,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 545 [2024-10-11 16:46:00,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:46:04,592 INFO L124 PetriNetUnfolderBase]: 4958/20279 cut-off events. [2024-10-11 16:46:04,592 INFO L125 PetriNetUnfolderBase]: For 25326/25822 co-relation queries the response was YES. [2024-10-11 16:46:04,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54070 conditions, 20279 events. 4958/20279 cut-off events. For 25326/25822 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 203711 event pairs, 719 based on Foata normal form. 90/18869 useless extension candidates. Maximal degree in co-relation 52929. Up to 5720 conditions per place. [2024-10-11 16:46:04,727 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 392 selfloop transitions, 5 changer transitions 0/1228 dead transitions. [2024-10-11 16:46:04,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 1228 transitions, 6870 flow [2024-10-11 16:46:04,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:46:04,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:46:04,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2794 transitions. [2024-10-11 16:46:04,729 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.854434250764526 [2024-10-11 16:46:04,729 INFO L175 Difference]: Start difference. First operand has 563 places, 1217 transitions, 6046 flow. Second operand 6 states and 2794 transitions. [2024-10-11 16:46:04,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 1228 transitions, 6870 flow [2024-10-11 16:46:04,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 562 places, 1228 transitions, 6860 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:46:04,788 INFO L231 Difference]: Finished difference. Result has 562 places, 1216 transitions, 6044 flow [2024-10-11 16:46:04,789 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=6034, PETRI_DIFFERENCE_MINUEND_PLACES=557, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6044, PETRI_PLACES=562, PETRI_TRANSITIONS=1216} [2024-10-11 16:46:04,789 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, 35 predicate places. [2024-10-11 16:46:04,789 INFO L471 AbstractCegarLoop]: Abstraction has has 562 places, 1216 transitions, 6044 flow [2024-10-11 16:46:04,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 456.1666666666667) internal successors, (2737), 6 states have internal predecessors, (2737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:04,790 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:46:04,790 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:46:04,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 16:46:04,790 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:46:04,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:46:04,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1347413759, now seen corresponding path program 1 times [2024-10-11 16:46:04,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:46:04,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509807223] [2024-10-11 16:46:04,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:46:04,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:46:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:46:04,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:46:04,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:46:04,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509807223] [2024-10-11 16:46:04,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509807223] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:46:04,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:46:04,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:46:04,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030538056] [2024-10-11 16:46:04,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:46:04,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:46:04,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:46:04,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:46:04,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:46:04,851 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 517 out of 545 [2024-10-11 16:46:04,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 562 places, 1216 transitions, 6044 flow. Second operand has 3 states, 3 states have (on average 519.3333333333334) internal successors, (1558), 3 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:04,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:46:04,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 517 of 545 [2024-10-11 16:46:04,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:46:09,827 INFO L124 PetriNetUnfolderBase]: 6508/26746 cut-off events. [2024-10-11 16:46:09,827 INFO L125 PetriNetUnfolderBase]: For 26257/26823 co-relation queries the response was YES. [2024-10-11 16:46:10,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65870 conditions, 26746 events. 6508/26746 cut-off events. For 26257/26823 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 258928 event pairs, 388 based on Foata normal form. 123/24950 useless extension candidates. Maximal degree in co-relation 65016. Up to 4697 conditions per place. [2024-10-11 16:46:10,113 INFO L140 encePairwiseOnDemand]: 540/545 looper letters, 21 selfloop transitions, 4 changer transitions 0/1226 dead transitions. [2024-10-11 16:46:10,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 564 places, 1226 transitions, 6117 flow [2024-10-11 16:46:10,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:46:10,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:46:10,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1577 transitions. [2024-10-11 16:46:10,114 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.964525993883792 [2024-10-11 16:46:10,115 INFO L175 Difference]: Start difference. First operand has 562 places, 1216 transitions, 6044 flow. Second operand 3 states and 1577 transitions. [2024-10-11 16:46:10,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 564 places, 1226 transitions, 6117 flow [2024-10-11 16:46:10,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 559 places, 1226 transitions, 6107 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:46:10,197 INFO L231 Difference]: Finished difference. Result has 561 places, 1220 transitions, 6068 flow [2024-10-11 16:46:10,198 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=6034, PETRI_DIFFERENCE_MINUEND_PLACES=557, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=6068, PETRI_PLACES=561, PETRI_TRANSITIONS=1220} [2024-10-11 16:46:10,198 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, 34 predicate places. [2024-10-11 16:46:10,199 INFO L471 AbstractCegarLoop]: Abstraction has has 561 places, 1220 transitions, 6068 flow [2024-10-11 16:46:10,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 519.3333333333334) internal successors, (1558), 3 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:10,199 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:46:10,199 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:46:10,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 16:46:10,200 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t1Err20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:46:10,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:46:10,200 INFO L85 PathProgramCache]: Analyzing trace with hash -146239301, now seen corresponding path program 1 times [2024-10-11 16:46:10,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:46:10,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248076814] [2024-10-11 16:46:10,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:46:10,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:46:10,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:46:10,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:46:10,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:46:10,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248076814] [2024-10-11 16:46:10,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248076814] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:46:10,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:46:10,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:46:10,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505712352] [2024-10-11 16:46:10,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:46:10,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:46:10,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:46:10,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:46:10,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:46:11,041 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 545 [2024-10-11 16:46:11,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 1220 transitions, 6068 flow. Second operand has 6 states, 6 states have (on average 394.5) internal successors, (2367), 6 states have internal predecessors, (2367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:11,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:46:11,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 545 [2024-10-11 16:46:11,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:46:20,618 INFO L124 PetriNetUnfolderBase]: 12033/42470 cut-off events. [2024-10-11 16:46:20,618 INFO L125 PetriNetUnfolderBase]: For 61711/62742 co-relation queries the response was YES. [2024-10-11 16:46:20,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122654 conditions, 42470 events. 12033/42470 cut-off events. For 61711/62742 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 429867 event pairs, 3547 based on Foata normal form. 15/39196 useless extension candidates. Maximal degree in co-relation 121170. Up to 20543 conditions per place. [2024-10-11 16:46:20,939 INFO L140 encePairwiseOnDemand]: 502/545 looper letters, 877 selfloop transitions, 150 changer transitions 0/1393 dead transitions. [2024-10-11 16:46:20,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 1393 transitions, 9820 flow [2024-10-11 16:46:20,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:46:20,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:46:20,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2601 transitions. [2024-10-11 16:46:20,941 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7954128440366972 [2024-10-11 16:46:20,941 INFO L175 Difference]: Start difference. First operand has 561 places, 1220 transitions, 6068 flow. Second operand 6 states and 2601 transitions. [2024-10-11 16:46:20,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 1393 transitions, 9820 flow [2024-10-11 16:46:21,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 1393 transitions, 9812 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:46:21,034 INFO L231 Difference]: Finished difference. Result has 568 places, 1370 transitions, 8214 flow [2024-10-11 16:46:21,035 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=6060, PETRI_DIFFERENCE_MINUEND_PLACES=559, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8214, PETRI_PLACES=568, PETRI_TRANSITIONS=1370} [2024-10-11 16:46:21,035 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, 41 predicate places. [2024-10-11 16:46:21,035 INFO L471 AbstractCegarLoop]: Abstraction has has 568 places, 1370 transitions, 8214 flow [2024-10-11 16:46:21,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 394.5) internal successors, (2367), 6 states have internal predecessors, (2367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:21,036 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:46:21,036 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:46:21,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 16:46:21,036 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t1Err21ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:46:21,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:46:21,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1556010377, now seen corresponding path program 1 times [2024-10-11 16:46:21,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:46:21,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138419177] [2024-10-11 16:46:21,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:46:21,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:46:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:46:21,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:46:21,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:46:21,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138419177] [2024-10-11 16:46:21,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138419177] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:46:21,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:46:21,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:46:21,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441286020] [2024-10-11 16:46:21,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:46:21,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:46:21,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:46:21,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:46:21,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:46:21,122 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 515 out of 545 [2024-10-11 16:46:21,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 1370 transitions, 8214 flow. Second operand has 3 states, 3 states have (on average 518.0) internal successors, (1554), 3 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:21,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:46:21,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 515 of 545 [2024-10-11 16:46:21,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:46:27,614 INFO L124 PetriNetUnfolderBase]: 7951/31961 cut-off events. [2024-10-11 16:46:27,614 INFO L125 PetriNetUnfolderBase]: For 51391/51911 co-relation queries the response was YES. [2024-10-11 16:46:27,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85831 conditions, 31961 events. 7951/31961 cut-off events. For 51391/51911 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 314977 event pairs, 571 based on Foata normal form. 124/29809 useless extension candidates. Maximal degree in co-relation 84933. Up to 6011 conditions per place. [2024-10-11 16:46:27,848 INFO L140 encePairwiseOnDemand]: 540/545 looper letters, 21 selfloop transitions, 5 changer transitions 0/1376 dead transitions. [2024-10-11 16:46:27,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 1376 transitions, 8282 flow [2024-10-11 16:46:27,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:46:27,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:46:27,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1569 transitions. [2024-10-11 16:46:27,850 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9596330275229358 [2024-10-11 16:46:27,850 INFO L175 Difference]: Start difference. First operand has 568 places, 1370 transitions, 8214 flow. Second operand 3 states and 1569 transitions. [2024-10-11 16:46:27,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 570 places, 1376 transitions, 8282 flow [2024-10-11 16:46:27,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 570 places, 1376 transitions, 7802 flow, removed 240 selfloop flow, removed 0 redundant places. [2024-10-11 16:46:27,939 INFO L231 Difference]: Finished difference. Result has 572 places, 1373 transitions, 7770 flow [2024-10-11 16:46:27,940 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=545, PETRI_DIFFERENCE_MINUEND_FLOW=7734, PETRI_DIFFERENCE_MINUEND_PLACES=568, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=7770, PETRI_PLACES=572, PETRI_TRANSITIONS=1373} [2024-10-11 16:46:27,940 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, 45 predicate places. [2024-10-11 16:46:27,940 INFO L471 AbstractCegarLoop]: Abstraction has has 572 places, 1373 transitions, 7770 flow [2024-10-11 16:46:27,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 518.0) internal successors, (1554), 3 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:27,941 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:46:27,941 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:46:27,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 16:46:27,941 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t1Err22ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2024-10-11 16:46:27,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:46:27,941 INFO L85 PathProgramCache]: Analyzing trace with hash 149333185, now seen corresponding path program 1 times [2024-10-11 16:46:27,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:46:27,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028784333] [2024-10-11 16:46:27,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:46:27,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:46:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:46:28,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:46:28,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:46:28,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028784333] [2024-10-11 16:46:28,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028784333] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:46:28,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:46:28,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:46:28,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708253904] [2024-10-11 16:46:28,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:46:28,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:46:28,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:46:28,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:46:28,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:46:28,026 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 515 out of 545 [2024-10-11 16:46:28,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 572 places, 1373 transitions, 7770 flow. Second operand has 3 states, 3 states have (on average 517.6666666666666) internal successors, (1553), 3 states have internal predecessors, (1553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:28,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:46:28,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 515 of 545 [2024-10-11 16:46:28,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand