./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 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_longer.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 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 16:44:57,568 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 16:44:57,623 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 16:44:57,628 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 16:44:57,629 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 16:44:57,648 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 16:44:57,649 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 16:44:57,649 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 16:44:57,650 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 16:44:57,650 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 16:44:57,651 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 16:44:57,652 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 16:44:57,652 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 16:44:57,652 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 16:44:57,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 16:44:57,655 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 16:44:57,655 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 16:44:57,655 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 16:44:57,655 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 16:44:57,655 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 16:44:57,655 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 16:44:57,656 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 16:44:57,656 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 16:44:57,656 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 16:44:57,656 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 16:44:57,656 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 16:44:57,656 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 16:44:57,657 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 16:44:57,657 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 16:44:57,657 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 16:44:57,657 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 16:44:57,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:44:57,657 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 16:44:57,657 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 16:44:57,658 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 16:44:57,658 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 16:44:57,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 16:44:57,658 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 16:44:57,658 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 16:44:57,658 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 16:44:57,658 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 16:44:57,660 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 [2024-10-11 16:44:57,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 16:44:57,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 16:44:57,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 16:44:57,898 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 16:44:57,898 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 16:44:57,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longer.i [2024-10-11 16:44:59,223 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 16:44:59,473 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 16:44:59,474 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longer.i [2024-10-11 16:44:59,493 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/3db281b28/94049a21bd024844a60ba4e00126ac42/FLAG033bacb72 [2024-10-11 16:44:59,506 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/3db281b28/94049a21bd024844a60ba4e00126ac42 [2024-10-11 16:44:59,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 16:44:59,510 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 16:44:59,511 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 16:44:59,512 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 16:44:59,516 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 16:44:59,517 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:44:59" (1/1) ... [2024-10-11 16:44:59,519 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55f4a4da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:44:59, skipping insertion in model container [2024-10-11 16:44:59,519 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:44:59" (1/1) ... [2024-10-11 16:44:59,560 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 16:44:59,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:44:59,945 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 16:45:00,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:45:00,121 INFO L204 MainTranslator]: Completed translation [2024-10-11 16:45:00,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:00 WrapperNode [2024-10-11 16:45:00,125 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 16:45:00,127 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 16:45:00,127 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 16:45:00,127 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 16:45:00,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:00" (1/1) ... [2024-10-11 16:45:00,152 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:00" (1/1) ... [2024-10-11 16:45:00,188 INFO L138 Inliner]: procedures = 274, calls = 56, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 474 [2024-10-11 16:45:00,188 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 16:45:00,189 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 16:45:00,189 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 16:45:00,189 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 16:45:00,199 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:00" (1/1) ... [2024-10-11 16:45:00,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:00" (1/1) ... [2024-10-11 16:45:00,213 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:00" (1/1) ... [2024-10-11 16:45:00,214 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:00" (1/1) ... [2024-10-11 16:45:00,237 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:00" (1/1) ... [2024-10-11 16:45:00,241 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:00" (1/1) ... [2024-10-11 16:45:00,243 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:00" (1/1) ... [2024-10-11 16:45:00,244 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:00" (1/1) ... [2024-10-11 16:45:00,248 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 16:45:00,248 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 16:45:00,248 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 16:45:00,249 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 16:45:00,249 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:00" (1/1) ... [2024-10-11 16:45:00,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:45:00,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:00,293 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 16:45:00,295 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 16:45:00,331 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-10-11 16:45:00,331 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-10-11 16:45:00,331 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-10-11 16:45:00,332 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-10-11 16:45:00,332 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 16:45:00,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 16:45:00,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 16:45:00,332 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 16:45:00,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 16:45:00,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 16:45:00,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 16:45:00,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 16:45:00,334 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 16:45:00,473 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 16:45:00,475 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 16:45:00,993 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 16:45:00,993 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 16:45:01,035 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 16:45:01,036 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 16:45:01,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:45:01 BoogieIcfgContainer [2024-10-11 16:45:01,036 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 16:45:01,042 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 16:45:01,042 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 16:45:01,044 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 16:45:01,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:44:59" (1/3) ... [2024-10-11 16:45:01,045 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e908d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:45:01, skipping insertion in model container [2024-10-11 16:45:01,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:00" (2/3) ... [2024-10-11 16:45:01,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e908d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:45:01, skipping insertion in model container [2024-10-11 16:45:01,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:45:01" (3/3) ... [2024-10-11 16:45:01,047 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_longer.i [2024-10-11 16:45:01,061 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 16:45:01,061 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-10-11 16:45:01,061 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 16:45:01,290 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 16:45:01,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 534 places, 545 transitions, 1104 flow [2024-10-11 16:45:01,515 INFO L124 PetriNetUnfolderBase]: 18/543 cut-off events. [2024-10-11 16:45:01,516 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 16:45:01,532 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 16:45:01,532 INFO L82 GeneralOperation]: Start removeDead. Operand has 534 places, 545 transitions, 1104 flow [2024-10-11 16:45:01,544 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 527 places, 538 transitions, 1085 flow [2024-10-11 16:45:01,554 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:45:01,561 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;@7d572568, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:45:01,562 INFO L334 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2024-10-11 16:45:01,566 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:45:01,567 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-10-11 16:45:01,567 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:45:01,567 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:01,568 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:01,568 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 16:45:01,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:01,573 INFO L85 PathProgramCache]: Analyzing trace with hash 184386952, now seen corresponding path program 1 times [2024-10-11 16:45:01,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:01,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815785547] [2024-10-11 16:45:01,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:01,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:01,810 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 16:45:01,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:01,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815785547] [2024-10-11 16:45:01,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815785547] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:01,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:01,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:01,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085412429] [2024-10-11 16:45:01,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:01,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:01,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:01,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:01,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:01,895 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 545 [2024-10-11 16:45:01,904 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 16:45:01,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:01,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 545 [2024-10-11 16:45:01,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:02,183 INFO L124 PetriNetUnfolderBase]: 61/1637 cut-off events. [2024-10-11 16:45:02,183 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-11 16:45:02,190 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 16:45:02,195 INFO L140 encePairwiseOnDemand]: 535/545 looper letters, 15 selfloop transitions, 2 changer transitions 0/519 dead transitions. [2024-10-11 16:45:02,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 519 transitions, 1081 flow [2024-10-11 16:45:02,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:02,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:02,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1564 transitions. [2024-10-11 16:45:02,212 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9565749235474006 [2024-10-11 16:45:02,213 INFO L175 Difference]: Start difference. First operand has 527 places, 538 transitions, 1085 flow. Second operand 3 states and 1564 transitions. [2024-10-11 16:45:02,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 519 transitions, 1081 flow [2024-10-11 16:45:02,219 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 16:45:02,226 INFO L231 Difference]: Finished difference. Result has 515 places, 519 transitions, 1046 flow [2024-10-11 16:45:02,229 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 16:45:02,232 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -12 predicate places. [2024-10-11 16:45:02,233 INFO L471 AbstractCegarLoop]: Abstraction has has 515 places, 519 transitions, 1046 flow [2024-10-11 16:45:02,234 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 16:45:02,234 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:02,234 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 16:45:02,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 16:45:02,235 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 16:45:02,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:02,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1794494119, now seen corresponding path program 1 times [2024-10-11 16:45:02,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:02,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359879423] [2024-10-11 16:45:02,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:02,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:02,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:02,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:02,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359879423] [2024-10-11 16:45:02,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359879423] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:02,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:02,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:02,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108233608] [2024-10-11 16:45:02,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:02,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:02,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:02,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:02,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:02,343 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 545 [2024-10-11 16:45:02,352 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 16:45:02,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:02,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 545 [2024-10-11 16:45:02,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:02,660 INFO L124 PetriNetUnfolderBase]: 69/1911 cut-off events. [2024-10-11 16:45:02,660 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-11 16:45:02,670 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 16:45:02,678 INFO L140 encePairwiseOnDemand]: 542/545 looper letters, 15 selfloop transitions, 2 changer transitions 0/518 dead transitions. [2024-10-11 16:45:02,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 518 transitions, 1078 flow [2024-10-11 16:45:02,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:02,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:02,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1557 transitions. [2024-10-11 16:45:02,682 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9522935779816514 [2024-10-11 16:45:02,682 INFO L175 Difference]: Start difference. First operand has 515 places, 519 transitions, 1046 flow. Second operand 3 states and 1557 transitions. [2024-10-11 16:45:02,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 518 transitions, 1078 flow [2024-10-11 16:45:02,686 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 16:45:02,692 INFO L231 Difference]: Finished difference. Result has 514 places, 518 transitions, 1044 flow [2024-10-11 16:45:02,693 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 16:45:02,694 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -13 predicate places. [2024-10-11 16:45:02,694 INFO L471 AbstractCegarLoop]: Abstraction has has 514 places, 518 transitions, 1044 flow [2024-10-11 16:45:02,695 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 16:45:02,695 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:02,696 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 16:45:02,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 16:45:02,696 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 16:45:02,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:02,697 INFO L85 PathProgramCache]: Analyzing trace with hash 2067411053, now seen corresponding path program 1 times [2024-10-11 16:45:02,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:02,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312272739] [2024-10-11 16:45:02,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:02,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:03,090 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 16:45:03,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:03,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312272739] [2024-10-11 16:45:03,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312272739] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:03,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:03,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:03,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055321290] [2024-10-11 16:45:03,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:03,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:03,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:03,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:03,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:03,737 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 545 [2024-10-11 16:45:03,742 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 16:45:03,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:03,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 545 [2024-10-11 16:45:03,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:05,661 INFO L124 PetriNetUnfolderBase]: 3722/15130 cut-off events. [2024-10-11 16:45:05,661 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-11 16:45:05,699 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 16:45:05,747 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 138 selfloop transitions, 5 changer transitions 0/517 dead transitions. [2024-10-11 16:45:05,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 517 transitions, 1328 flow [2024-10-11 16:45:05,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:05,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:05,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2472 transitions. [2024-10-11 16:45:05,755 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7559633027522936 [2024-10-11 16:45:05,755 INFO L175 Difference]: Start difference. First operand has 514 places, 518 transitions, 1044 flow. Second operand 6 states and 2472 transitions. [2024-10-11 16:45:05,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 517 transitions, 1328 flow [2024-10-11 16:45:05,762 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 16:45:05,769 INFO L231 Difference]: Finished difference. Result has 516 places, 517 transitions, 1048 flow [2024-10-11 16:45:05,770 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 16:45:05,771 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -11 predicate places. [2024-10-11 16:45:05,771 INFO L471 AbstractCegarLoop]: Abstraction has has 516 places, 517 transitions, 1048 flow [2024-10-11 16:45:05,773 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 16:45:05,773 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:05,774 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 16:45:05,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 16:45:05,774 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 16:45:05,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:05,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1539044538, now seen corresponding path program 1 times [2024-10-11 16:45:05,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:05,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941795759] [2024-10-11 16:45:05,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:05,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:06,148 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 16:45:06,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:06,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941795759] [2024-10-11 16:45:06,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941795759] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:06,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:06,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:06,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640628596] [2024-10-11 16:45:06,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:06,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:06,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:06,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:06,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:06,621 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 545 [2024-10-11 16:45:06,623 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 16:45:06,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:06,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 545 [2024-10-11 16:45:06,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:08,692 INFO L124 PetriNetUnfolderBase]: 3722/15129 cut-off events. [2024-10-11 16:45:08,692 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-11 16:45:08,726 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 16:45:08,765 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 138 selfloop transitions, 5 changer transitions 0/516 dead transitions. [2024-10-11 16:45:08,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 516 transitions, 1332 flow [2024-10-11 16:45:08,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:08,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:08,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2472 transitions. [2024-10-11 16:45:08,769 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7559633027522936 [2024-10-11 16:45:08,769 INFO L175 Difference]: Start difference. First operand has 516 places, 517 transitions, 1048 flow. Second operand 6 states and 2472 transitions. [2024-10-11 16:45:08,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 516 transitions, 1332 flow [2024-10-11 16:45:08,902 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 16:45:08,912 INFO L231 Difference]: Finished difference. Result has 515 places, 516 transitions, 1046 flow [2024-10-11 16:45:08,916 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 16:45:08,917 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -12 predicate places. [2024-10-11 16:45:08,920 INFO L471 AbstractCegarLoop]: Abstraction has has 515 places, 516 transitions, 1046 flow [2024-10-11 16:45:08,921 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 16:45:08,922 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:08,922 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 16:45:08,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 16:45:08,922 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 16:45:08,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:08,923 INFO L85 PathProgramCache]: Analyzing trace with hash 382549686, now seen corresponding path program 1 times [2024-10-11 16:45:08,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:08,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226703812] [2024-10-11 16:45:08,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:08,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:08,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:09,242 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 16:45:09,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:09,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226703812] [2024-10-11 16:45:09,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226703812] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:09,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:09,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:09,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918466325] [2024-10-11 16:45:09,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:09,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:09,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:09,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:09,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:10,103 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 545 [2024-10-11 16:45:10,105 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 16:45:10,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:10,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 545 [2024-10-11 16:45:10,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:12,397 INFO L124 PetriNetUnfolderBase]: 3722/15128 cut-off events. [2024-10-11 16:45:12,397 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-11 16:45:12,427 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 16:45:12,509 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 138 selfloop transitions, 5 changer transitions 0/515 dead transitions. [2024-10-11 16:45:12,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 515 transitions, 1330 flow [2024-10-11 16:45:12,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:12,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:12,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2472 transitions. [2024-10-11 16:45:12,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7559633027522936 [2024-10-11 16:45:12,521 INFO L175 Difference]: Start difference. First operand has 515 places, 516 transitions, 1046 flow. Second operand 6 states and 2472 transitions. [2024-10-11 16:45:12,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 515 transitions, 1330 flow [2024-10-11 16:45:12,524 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 16:45:12,535 INFO L231 Difference]: Finished difference. Result has 514 places, 515 transitions, 1044 flow [2024-10-11 16:45:12,540 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 16:45:12,542 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -13 predicate places. [2024-10-11 16:45:12,542 INFO L471 AbstractCegarLoop]: Abstraction has has 514 places, 515 transitions, 1044 flow [2024-10-11 16:45:12,544 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 16:45:12,544 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:12,544 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 16:45:12,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 16:45:12,548 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 16:45:12,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:12,549 INFO L85 PathProgramCache]: Analyzing trace with hash 504962579, now seen corresponding path program 1 times [2024-10-11 16:45:12,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:12,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740758389] [2024-10-11 16:45:12,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:12,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:13,056 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 16:45:13,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:13,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740758389] [2024-10-11 16:45:13,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740758389] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:13,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:13,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:13,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427023185] [2024-10-11 16:45:13,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:13,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:13,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:13,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:13,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:14,274 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 545 [2024-10-11 16:45:14,277 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 16:45:14,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:14,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 545 [2024-10-11 16:45:14,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:14,887 INFO L124 PetriNetUnfolderBase]: 858/5626 cut-off events. [2024-10-11 16:45:14,888 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-11 16:45:14,901 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 16:45:14,913 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 76 selfloop transitions, 5 changer transitions 0/514 dead transitions. [2024-10-11 16:45:14,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 514 transitions, 1204 flow [2024-10-11 16:45:14,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:14,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:14,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2782 transitions. [2024-10-11 16:45:14,919 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8507645259938837 [2024-10-11 16:45:14,919 INFO L175 Difference]: Start difference. First operand has 514 places, 515 transitions, 1044 flow. Second operand 6 states and 2782 transitions. [2024-10-11 16:45:14,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 514 transitions, 1204 flow [2024-10-11 16:45:14,921 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 16:45:14,925 INFO L231 Difference]: Finished difference. Result has 513 places, 514 transitions, 1042 flow [2024-10-11 16:45:14,926 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 16:45:14,926 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -14 predicate places. [2024-10-11 16:45:14,926 INFO L471 AbstractCegarLoop]: Abstraction has has 513 places, 514 transitions, 1042 flow [2024-10-11 16:45:14,928 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 16:45:14,928 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:14,928 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 16:45:14,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 16:45:14,928 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 16:45:14,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:14,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1691233872, now seen corresponding path program 1 times [2024-10-11 16:45:14,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:14,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032101045] [2024-10-11 16:45:14,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:14,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:15,232 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 16:45:15,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:15,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032101045] [2024-10-11 16:45:15,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032101045] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:15,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:15,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:15,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318611110] [2024-10-11 16:45:15,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:15,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:15,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:15,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:15,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:16,059 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 545 [2024-10-11 16:45:16,062 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 16:45:16,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:16,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 545 [2024-10-11 16:45:16,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:16,903 INFO L124 PetriNetUnfolderBase]: 858/5625 cut-off events. [2024-10-11 16:45:16,904 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-11 16:45:16,921 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 16:45:16,937 INFO L140 encePairwiseOnDemand]: 539/545 looper letters, 76 selfloop transitions, 5 changer transitions 0/513 dead transitions. [2024-10-11 16:45:16,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 513 transitions, 1202 flow [2024-10-11 16:45:16,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:16,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:16,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2782 transitions. [2024-10-11 16:45:16,943 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8507645259938837 [2024-10-11 16:45:16,943 INFO L175 Difference]: Start difference. First operand has 513 places, 514 transitions, 1042 flow. Second operand 6 states and 2782 transitions. [2024-10-11 16:45:16,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 513 transitions, 1202 flow [2024-10-11 16:45:16,946 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 16:45:16,951 INFO L231 Difference]: Finished difference. Result has 512 places, 513 transitions, 1040 flow [2024-10-11 16:45:16,951 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 16:45:16,952 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -15 predicate places. [2024-10-11 16:45:16,952 INFO L471 AbstractCegarLoop]: Abstraction has has 512 places, 513 transitions, 1040 flow [2024-10-11 16:45:16,954 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 16:45:16,954 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:16,954 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 16:45:16,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 16:45:16,954 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 16:45:16,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:16,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1648747429, now seen corresponding path program 1 times [2024-10-11 16:45:16,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:16,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228072872] [2024-10-11 16:45:16,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:16,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:17,059 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 16:45:17,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:17,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228072872] [2024-10-11 16:45:17,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228072872] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:17,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:17,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:17,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596338475] [2024-10-11 16:45:17,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:17,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:17,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:17,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:17,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:17,074 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 517 out of 545 [2024-10-11 16:45:17,076 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 16:45:17,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:17,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 517 of 545 [2024-10-11 16:45:17,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:17,452 INFO L124 PetriNetUnfolderBase]: 114/2629 cut-off events. [2024-10-11 16:45:17,452 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-11 16:45:17,465 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 16:45:17,472 INFO L140 encePairwiseOnDemand]: 540/545 looper letters, 22 selfloop transitions, 4 changer transitions 0/524 dead transitions. [2024-10-11 16:45:17,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 524 transitions, 1115 flow [2024-10-11 16:45:17,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:17,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:17,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1578 transitions. [2024-10-11 16:45:17,476 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9651376146788991 [2024-10-11 16:45:17,476 INFO L175 Difference]: Start difference. First operand has 512 places, 513 transitions, 1040 flow. Second operand 3 states and 1578 transitions. [2024-10-11 16:45:17,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 524 transitions, 1115 flow [2024-10-11 16:45:17,479 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 16:45:17,487 INFO L231 Difference]: Finished difference. Result has 511 places, 517 transitions, 1064 flow [2024-10-11 16:45:17,487 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 16:45:17,488 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -16 predicate places. [2024-10-11 16:45:17,488 INFO L471 AbstractCegarLoop]: Abstraction has has 511 places, 517 transitions, 1064 flow [2024-10-11 16:45:17,489 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 16:45:17,489 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:17,489 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 16:45:17,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 16:45:17,490 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 16:45:17,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:17,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1833150553, now seen corresponding path program 1 times [2024-10-11 16:45:17,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:17,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079973444] [2024-10-11 16:45:17,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:17,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:17,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:18,573 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 16:45:18,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:18,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079973444] [2024-10-11 16:45:18,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079973444] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:18,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:18,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-11 16:45:18,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567861556] [2024-10-11 16:45:18,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:18,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 16:45:18,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:18,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 16:45:18,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-10-11 16:45:20,418 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 545 [2024-10-11 16:45:20,425 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 16:45:20,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:20,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 545 [2024-10-11 16:45:20,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:21,217 INFO L124 PetriNetUnfolderBase]: 251/4151 cut-off events. [2024-10-11 16:45:21,217 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-10-11 16:45:21,235 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 16:45:21,247 INFO L140 encePairwiseOnDemand]: 527/545 looper letters, 32 selfloop transitions, 17 changer transitions 0/519 dead transitions. [2024-10-11 16:45:21,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 519 transitions, 1168 flow [2024-10-11 16:45:21,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 16:45:21,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 16:45:21,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 5882 transitions. [2024-10-11 16:45:21,260 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.899388379204893 [2024-10-11 16:45:21,260 INFO L175 Difference]: Start difference. First operand has 511 places, 517 transitions, 1064 flow. Second operand 12 states and 5882 transitions. [2024-10-11 16:45:21,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 519 transitions, 1168 flow [2024-10-11 16:45:21,265 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 16:45:21,270 INFO L231 Difference]: Finished difference. Result has 518 places, 515 transitions, 1097 flow [2024-10-11 16:45:21,271 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 16:45:21,272 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -9 predicate places. [2024-10-11 16:45:21,272 INFO L471 AbstractCegarLoop]: Abstraction has has 518 places, 515 transitions, 1097 flow [2024-10-11 16:45:21,275 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 16:45:21,275 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:21,276 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 16:45:21,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 16:45:21,276 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 16:45:21,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:21,279 INFO L85 PathProgramCache]: Analyzing trace with hash -2140385120, now seen corresponding path program 1 times [2024-10-11 16:45:21,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:21,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288281234] [2024-10-11 16:45:21,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:21,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:21,702 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 16:45:21,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:21,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288281234] [2024-10-11 16:45:21,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288281234] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:21,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:21,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:21,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512783095] [2024-10-11 16:45:21,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:21,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:21,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:21,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:21,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:22,587 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 421 out of 545 [2024-10-11 16:45:22,589 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 16:45:22,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:22,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 421 of 545 [2024-10-11 16:45:22,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:24,777 INFO L124 PetriNetUnfolderBase]: 3134/14428 cut-off events. [2024-10-11 16:45:24,778 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-10-11 16:45:24,824 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 16:45:24,868 INFO L140 encePairwiseOnDemand]: 491/545 looper letters, 125 selfloop transitions, 84 changer transitions 0/613 dead transitions. [2024-10-11 16:45:24,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 523 places, 613 transitions, 1719 flow [2024-10-11 16:45:24,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:24,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:24,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2741 transitions. [2024-10-11 16:45:24,876 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8382262996941896 [2024-10-11 16:45:24,876 INFO L175 Difference]: Start difference. First operand has 518 places, 515 transitions, 1097 flow. Second operand 6 states and 2741 transitions. [2024-10-11 16:45:24,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 523 places, 613 transitions, 1719 flow [2024-10-11 16:45:24,882 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 16:45:24,889 INFO L231 Difference]: Finished difference. Result has 518 places, 595 transitions, 1666 flow [2024-10-11 16:45:24,890 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 16:45:24,891 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -9 predicate places. [2024-10-11 16:45:24,891 INFO L471 AbstractCegarLoop]: Abstraction has has 518 places, 595 transitions, 1666 flow [2024-10-11 16:45:24,892 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 16:45:24,892 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:24,892 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 16:45:24,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 16:45:24,893 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 16:45:24,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:24,893 INFO L85 PathProgramCache]: Analyzing trace with hash 724346284, now seen corresponding path program 1 times [2024-10-11 16:45:24,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:24,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661807968] [2024-10-11 16:45:24,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:24,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:24,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:25,029 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 16:45:25,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:25,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661807968] [2024-10-11 16:45:25,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661807968] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:25,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:25,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 16:45:25,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418512891] [2024-10-11 16:45:25,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:25,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:25,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:25,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:25,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:25,040 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 518 out of 545 [2024-10-11 16:45:25,042 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 16:45:25,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:25,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 518 of 545 [2024-10-11 16:45:25,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:26,838 INFO L124 PetriNetUnfolderBase]: 990/8697 cut-off events. [2024-10-11 16:45:26,839 INFO L125 PetriNetUnfolderBase]: For 621/633 co-relation queries the response was YES. [2024-10-11 16:45:26,876 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 16:45:26,902 INFO L140 encePairwiseOnDemand]: 541/545 looper letters, 18 selfloop transitions, 3 changer transitions 0/581 dead transitions. [2024-10-11 16:45:26,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 581 transitions, 1627 flow [2024-10-11 16:45:26,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:26,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:26,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1576 transitions. [2024-10-11 16:45:26,906 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.963914373088685 [2024-10-11 16:45:26,906 INFO L175 Difference]: Start difference. First operand has 518 places, 595 transitions, 1666 flow. Second operand 3 states and 1576 transitions. [2024-10-11 16:45:26,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 581 transitions, 1627 flow [2024-10-11 16:45:26,918 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 16:45:26,923 INFO L231 Difference]: Finished difference. Result has 516 places, 575 transitions, 1555 flow [2024-10-11 16:45:26,924 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 16:45:26,924 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -11 predicate places. [2024-10-11 16:45:26,924 INFO L471 AbstractCegarLoop]: Abstraction has has 516 places, 575 transitions, 1555 flow [2024-10-11 16:45:26,925 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 16:45:26,925 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:26,925 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 16:45:26,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 16:45:26,926 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 16:45:26,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:26,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1224579267, now seen corresponding path program 1 times [2024-10-11 16:45:26,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:26,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876991927] [2024-10-11 16:45:26,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:26,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:27,409 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 16:45:27,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:27,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876991927] [2024-10-11 16:45:27,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876991927] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:27,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:27,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:27,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230724834] [2024-10-11 16:45:27,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:27,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:27,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:27,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:27,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:27,960 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 545 [2024-10-11 16:45:27,962 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 16:45:27,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:27,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 545 [2024-10-11 16:45:27,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:32,220 INFO L124 PetriNetUnfolderBase]: 6037/22353 cut-off events. [2024-10-11 16:45:32,220 INFO L125 PetriNetUnfolderBase]: For 4260/4491 co-relation queries the response was YES. [2024-10-11 16:45:32,297 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 16:45:32,350 INFO L140 encePairwiseOnDemand]: 496/545 looper letters, 228 selfloop transitions, 156 changer transitions 0/735 dead transitions. [2024-10-11 16:45:32,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 735 transitions, 2747 flow [2024-10-11 16:45:32,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:32,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:32,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2539 transitions. [2024-10-11 16:45:32,354 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7764525993883792 [2024-10-11 16:45:32,354 INFO L175 Difference]: Start difference. First operand has 516 places, 575 transitions, 1555 flow. Second operand 6 states and 2539 transitions. [2024-10-11 16:45:32,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 735 transitions, 2747 flow [2024-10-11 16:45:32,366 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 16:45:32,372 INFO L231 Difference]: Finished difference. Result has 524 places, 723 transitions, 2652 flow [2024-10-11 16:45:32,373 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 16:45:32,373 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, -3 predicate places. [2024-10-11 16:45:32,373 INFO L471 AbstractCegarLoop]: Abstraction has has 524 places, 723 transitions, 2652 flow [2024-10-11 16:45:32,374 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 16:45:32,374 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:32,374 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 16:45:32,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 16:45:32,374 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 16:45:32,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:32,375 INFO L85 PathProgramCache]: Analyzing trace with hash 767111874, now seen corresponding path program 1 times [2024-10-11 16:45:32,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:32,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175779733] [2024-10-11 16:45:32,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:32,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:32,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:32,723 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 16:45:32,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:32,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175779733] [2024-10-11 16:45:32,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175779733] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:32,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:32,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:32,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069022293] [2024-10-11 16:45:32,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:32,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:32,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:32,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:32,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:33,837 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 545 [2024-10-11 16:45:33,839 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 16:45:33,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:33,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 545 [2024-10-11 16:45:33,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:36,139 INFO L124 PetriNetUnfolderBase]: 2727/14385 cut-off events. [2024-10-11 16:45:36,139 INFO L125 PetriNetUnfolderBase]: For 4611/5292 co-relation queries the response was YES. [2024-10-11 16:45:36,181 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 16:45:36,210 INFO L140 encePairwiseOnDemand]: 520/545 looper letters, 182 selfloop transitions, 59 changer transitions 0/787 dead transitions. [2024-10-11 16:45:36,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 787 transitions, 3462 flow [2024-10-11 16:45:36,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:36,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:36,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2873 transitions. [2024-10-11 16:45:36,215 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8785932721712538 [2024-10-11 16:45:36,215 INFO L175 Difference]: Start difference. First operand has 524 places, 723 transitions, 2652 flow. Second operand 6 states and 2873 transitions. [2024-10-11 16:45:36,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 787 transitions, 3462 flow [2024-10-11 16:45:36,231 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 16:45:36,237 INFO L231 Difference]: Finished difference. Result has 533 places, 775 transitions, 3124 flow [2024-10-11 16:45:36,238 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 16:45:36,238 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, 6 predicate places. [2024-10-11 16:45:36,239 INFO L471 AbstractCegarLoop]: Abstraction has has 533 places, 775 transitions, 3124 flow [2024-10-11 16:45:36,240 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 16:45:36,240 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:36,240 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:36,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 16:45:36,240 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 16:45:36,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:36,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1826880967, now seen corresponding path program 1 times [2024-10-11 16:45:36,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:36,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130157378] [2024-10-11 16:45:36,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:36,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:36,616 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 16:45:36,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:36,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130157378] [2024-10-11 16:45:36,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130157378] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:36,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:36,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:36,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102426280] [2024-10-11 16:45:36,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:36,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:36,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:36,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:36,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:37,378 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 545 [2024-10-11 16:45:37,381 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 16:45:37,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:37,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 545 [2024-10-11 16:45:37,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:41,122 INFO L124 PetriNetUnfolderBase]: 4709/19168 cut-off events. [2024-10-11 16:45:41,122 INFO L125 PetriNetUnfolderBase]: For 8408/8742 co-relation queries the response was YES. [2024-10-11 16:45:41,179 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 16:45:41,220 INFO L140 encePairwiseOnDemand]: 496/545 looper letters, 374 selfloop transitions, 156 changer transitions 0/935 dead transitions. [2024-10-11 16:45:41,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 537 places, 935 transitions, 4992 flow [2024-10-11 16:45:41,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:41,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:41,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2749 transitions. [2024-10-11 16:45:41,224 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8406727828746178 [2024-10-11 16:45:41,224 INFO L175 Difference]: Start difference. First operand has 533 places, 775 transitions, 3124 flow. Second operand 6 states and 2749 transitions. [2024-10-11 16:45:41,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 537 places, 935 transitions, 4992 flow [2024-10-11 16:45:41,246 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 16:45:41,253 INFO L231 Difference]: Finished difference. Result has 542 places, 923 transitions, 4512 flow [2024-10-11 16:45:41,254 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 16:45:41,254 INFO L277 CegarLoopForPetriNet]: 527 programPoint places, 15 predicate places. [2024-10-11 16:45:41,254 INFO L471 AbstractCegarLoop]: Abstraction has has 542 places, 923 transitions, 4512 flow [2024-10-11 16:45:41,255 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 16:45:41,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:41,255 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:45:41,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 16:45:41,255 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 16:45:41,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:41,256 INFO L85 PathProgramCache]: Analyzing trace with hash 767497366, now seen corresponding path program 1 times [2024-10-11 16:45:41,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:41,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470093817] [2024-10-11 16:45:41,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:41,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:41,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:41,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:41,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470093817] [2024-10-11 16:45:41,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470093817] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:41,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:41,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:41,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454543184] [2024-10-11 16:45:41,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:41,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:41,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:41,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:41,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:42,316 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 545 [2024-10-11 16:45:42,318 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 16:45:42,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:42,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 545 [2024-10-11 16:45:42,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand