./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b00ba58edbbf9092a3bbde4865c9e14ef534546a29b4ba514bb7ebaf27fc72c0 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 17:05:08,420 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:05:08,511 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 17:05:08,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:05:08,520 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:05:08,548 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:05:08,550 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:05:08,551 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:05:08,552 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:05:08,553 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:05:08,554 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:05:08,554 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:05:08,555 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:05:08,558 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:05:08,558 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 17:05:08,558 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:05:08,559 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:05:08,559 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:05:08,559 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:05:08,559 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 17:05:08,560 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:05:08,560 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 17:05:08,561 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 17:05:08,561 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:05:08,561 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:05:08,562 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:05:08,562 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 17:05:08,562 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:05:08,562 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:05:08,563 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:05:08,563 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:05:08,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:05:08,564 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:05:08,564 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:05:08,565 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 17:05:08,565 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:05:08,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:05:08,566 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:05:08,566 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:05:08,566 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:05:08,566 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:05:08,567 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b00ba58edbbf9092a3bbde4865c9e14ef534546a29b4ba514bb7ebaf27fc72c0 [2024-10-14 17:05:08,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:05:08,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:05:08,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:05:08,875 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:05:08,875 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:05:08,876 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i [2024-10-14 17:05:10,264 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:05:10,563 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:05:10,564 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i [2024-10-14 17:05:10,590 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a07ba5763/6461abc3cdd14bec96cbf6a5b9a58571/FLAG1d6efe8ac [2024-10-14 17:05:10,610 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a07ba5763/6461abc3cdd14bec96cbf6a5b9a58571 [2024-10-14 17:05:10,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:05:10,615 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:05:10,617 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:05:10,618 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:05:10,623 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:05:10,623 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:05:10" (1/1) ... [2024-10-14 17:05:10,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e42c955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:10, skipping insertion in model container [2024-10-14 17:05:10,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:05:10" (1/1) ... [2024-10-14 17:05:10,679 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:05:11,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:05:11,233 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:05:11,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:05:11,428 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:05:11,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:11 WrapperNode [2024-10-14 17:05:11,429 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:05:11,430 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:05:11,430 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:05:11,430 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:05:11,437 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:11" (1/1) ... [2024-10-14 17:05:11,466 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:11" (1/1) ... [2024-10-14 17:05:11,499 INFO L138 Inliner]: procedures = 368, calls = 35, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 207 [2024-10-14 17:05:11,503 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:05:11,504 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:05:11,504 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:05:11,505 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:05:11,516 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:11" (1/1) ... [2024-10-14 17:05:11,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:11" (1/1) ... [2024-10-14 17:05:11,525 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:11" (1/1) ... [2024-10-14 17:05:11,526 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:11" (1/1) ... [2024-10-14 17:05:11,549 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:11" (1/1) ... [2024-10-14 17:05:11,553 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:11" (1/1) ... [2024-10-14 17:05:11,556 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:11" (1/1) ... [2024-10-14 17:05:11,557 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:11" (1/1) ... [2024-10-14 17:05:11,562 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:05:11,563 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:05:11,563 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:05:11,563 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:05:11,564 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:11" (1/1) ... [2024-10-14 17:05:11,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:05:11,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:05:11,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 17:05:11,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 17:05:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-14 17:05:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-14 17:05:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 17:05:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 17:05:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-14 17:05:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 17:05:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 17:05:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-14 17:05:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-14 17:05:11,657 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-14 17:05:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 17:05:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:05:11,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:05:11,659 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 17:05:11,828 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:05:11,830 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:05:12,231 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 17:05:12,231 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:05:12,262 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:05:12,264 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 17:05:12,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:05:12 BoogieIcfgContainer [2024-10-14 17:05:12,265 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:05:12,267 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:05:12,267 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:05:12,271 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:05:12,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:05:10" (1/3) ... [2024-10-14 17:05:12,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ea04a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:05:12, skipping insertion in model container [2024-10-14 17:05:12,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:11" (2/3) ... [2024-10-14 17:05:12,273 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ea04a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:05:12, skipping insertion in model container [2024-10-14 17:05:12,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:05:12" (3/3) ... [2024-10-14 17:05:12,278 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_05-ptra_rc.i [2024-10-14 17:05:12,294 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:05:12,295 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-10-14 17:05:12,295 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 17:05:12,409 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 17:05:12,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 244 places, 240 transitions, 484 flow [2024-10-14 17:05:12,557 INFO L124 PetriNetUnfolderBase]: 0/239 cut-off events. [2024-10-14 17:05:12,557 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:05:12,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 239 events. 0/239 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 93 event pairs, 0 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-10-14 17:05:12,564 INFO L82 GeneralOperation]: Start removeDead. Operand has 244 places, 240 transitions, 484 flow [2024-10-14 17:05:12,571 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 243 places, 239 transitions, 481 flow [2024-10-14 17:05:12,581 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:05:12,589 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;@47dbee5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:05:12,590 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-10-14 17:05:12,602 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:05:12,602 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2024-10-14 17:05:12,602 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:05:12,602 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:12,603 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:05:12,604 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:12,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:12,611 INFO L85 PathProgramCache]: Analyzing trace with hash 408968249, now seen corresponding path program 1 times [2024-10-14 17:05:12,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:12,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228900035] [2024-10-14 17:05:12,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:12,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:13,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:13,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:13,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228900035] [2024-10-14 17:05:13,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228900035] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:13,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:13,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:05:13,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864172332] [2024-10-14 17:05:13,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:13,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:05:13,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:13,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:05:13,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:05:14,112 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 240 [2024-10-14 17:05:14,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 239 transitions, 481 flow. Second operand has 6 states, 6 states have (on average 171.33333333333334) internal successors, (1028), 6 states have internal predecessors, (1028), 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) [2024-10-14 17:05:14,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:14,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 240 [2024-10-14 17:05:14,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:14,375 INFO L124 PetriNetUnfolderBase]: 220/1062 cut-off events. [2024-10-14 17:05:14,375 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:05:14,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1574 conditions, 1062 events. 220/1062 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5475 event pairs, 220 based on Foata normal form. 0/954 useless extension candidates. Maximal degree in co-relation 1401. Up to 493 conditions per place. [2024-10-14 17:05:14,390 INFO L140 encePairwiseOnDemand]: 222/240 looper letters, 52 selfloop transitions, 15 changer transitions 0/236 dead transitions. [2024-10-14 17:05:14,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 236 transitions, 609 flow [2024-10-14 17:05:14,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:05:14,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:05:14,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1090 transitions. [2024-10-14 17:05:14,410 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7569444444444444 [2024-10-14 17:05:14,411 INFO L175 Difference]: Start difference. First operand has 243 places, 239 transitions, 481 flow. Second operand 6 states and 1090 transitions. [2024-10-14 17:05:14,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 236 transitions, 609 flow [2024-10-14 17:05:14,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 236 transitions, 608 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:05:14,422 INFO L231 Difference]: Finished difference. Result has 244 places, 236 transitions, 504 flow [2024-10-14 17:05:14,424 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=504, PETRI_PLACES=244, PETRI_TRANSITIONS=236} [2024-10-14 17:05:14,428 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 1 predicate places. [2024-10-14 17:05:14,428 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 236 transitions, 504 flow [2024-10-14 17:05:14,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.33333333333334) internal successors, (1028), 6 states have internal predecessors, (1028), 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) [2024-10-14 17:05:14,429 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:14,429 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] [2024-10-14 17:05:14,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:05:14,430 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:14,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:14,432 INFO L85 PathProgramCache]: Analyzing trace with hash 535129878, now seen corresponding path program 1 times [2024-10-14 17:05:14,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:14,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175233462] [2024-10-14 17:05:14,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:14,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:14,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:14,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:14,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175233462] [2024-10-14 17:05:14,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175233462] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:14,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:14,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:05:14,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522473044] [2024-10-14 17:05:14,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:14,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:05:14,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:14,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:05:14,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:05:15,219 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 240 [2024-10-14 17:05:15,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 236 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 171.33333333333334) internal successors, (1028), 6 states have internal predecessors, (1028), 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) [2024-10-14 17:05:15,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:15,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 240 [2024-10-14 17:05:15,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:15,381 INFO L124 PetriNetUnfolderBase]: 220/1059 cut-off events. [2024-10-14 17:05:15,381 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:05:15,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1586 conditions, 1059 events. 220/1059 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5458 event pairs, 220 based on Foata normal form. 0/954 useless extension candidates. Maximal degree in co-relation 1426. Up to 493 conditions per place. [2024-10-14 17:05:15,387 INFO L140 encePairwiseOnDemand]: 222/240 looper letters, 52 selfloop transitions, 15 changer transitions 0/233 dead transitions. [2024-10-14 17:05:15,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 233 transitions, 632 flow [2024-10-14 17:05:15,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:05:15,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:05:15,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1090 transitions. [2024-10-14 17:05:15,390 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7569444444444444 [2024-10-14 17:05:15,390 INFO L175 Difference]: Start difference. First operand has 244 places, 236 transitions, 504 flow. Second operand 6 states and 1090 transitions. [2024-10-14 17:05:15,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 233 transitions, 632 flow [2024-10-14 17:05:15,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 233 transitions, 602 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:05:15,396 INFO L231 Difference]: Finished difference. Result has 241 places, 233 transitions, 498 flow [2024-10-14 17:05:15,396 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=498, PETRI_PLACES=241, PETRI_TRANSITIONS=233} [2024-10-14 17:05:15,397 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -2 predicate places. [2024-10-14 17:05:15,397 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 233 transitions, 498 flow [2024-10-14 17:05:15,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.33333333333334) internal successors, (1028), 6 states have internal predecessors, (1028), 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) [2024-10-14 17:05:15,398 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:15,398 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] [2024-10-14 17:05:15,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 17:05:15,398 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:15,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:15,399 INFO L85 PathProgramCache]: Analyzing trace with hash 106327977, now seen corresponding path program 1 times [2024-10-14 17:05:15,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:15,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297743489] [2024-10-14 17:05:15,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:15,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:15,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:15,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:15,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297743489] [2024-10-14 17:05:15,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297743489] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:15,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:15,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:05:15,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531198113] [2024-10-14 17:05:15,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:15,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:05:15,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:15,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:05:15,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:05:15,481 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 240 [2024-10-14 17:05:15,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 233 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 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) [2024-10-14 17:05:15,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:15,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 240 [2024-10-14 17:05:15,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:15,535 INFO L124 PetriNetUnfolderBase]: 16/368 cut-off events. [2024-10-14 17:05:15,535 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:05:15,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 368 events. 16/368 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 773 event pairs, 16 based on Foata normal form. 0/334 useless extension candidates. Maximal degree in co-relation 288. Up to 47 conditions per place. [2024-10-14 17:05:15,537 INFO L140 encePairwiseOnDemand]: 237/240 looper letters, 14 selfloop transitions, 2 changer transitions 0/232 dead transitions. [2024-10-14 17:05:15,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 232 transitions, 528 flow [2024-10-14 17:05:15,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:05:15,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:05:15,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 686 transitions. [2024-10-14 17:05:15,540 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9527777777777777 [2024-10-14 17:05:15,540 INFO L175 Difference]: Start difference. First operand has 241 places, 233 transitions, 498 flow. Second operand 3 states and 686 transitions. [2024-10-14 17:05:15,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 232 transitions, 528 flow [2024-10-14 17:05:15,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 232 transitions, 498 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:05:15,545 INFO L231 Difference]: Finished difference. Result has 237 places, 232 transitions, 470 flow [2024-10-14 17:05:15,545 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=470, PETRI_PLACES=237, PETRI_TRANSITIONS=232} [2024-10-14 17:05:15,547 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -6 predicate places. [2024-10-14 17:05:15,547 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 232 transitions, 470 flow [2024-10-14 17:05:15,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 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) [2024-10-14 17:05:15,548 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:15,548 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:05:15,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 17:05:15,549 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:15,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:15,550 INFO L85 PathProgramCache]: Analyzing trace with hash 296367235, now seen corresponding path program 1 times [2024-10-14 17:05:15,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:15,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344889106] [2024-10-14 17:05:15,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:15,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:15,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:15,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:15,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344889106] [2024-10-14 17:05:15,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344889106] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:15,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:15,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:05:15,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077572568] [2024-10-14 17:05:15,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:15,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:05:15,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:15,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:05:15,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:05:15,632 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 240 [2024-10-14 17:05:15,633 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 232 transitions, 470 flow. Second operand has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 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) [2024-10-14 17:05:15,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:15,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 240 [2024-10-14 17:05:15,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:15,716 INFO L124 PetriNetUnfolderBase]: 24/445 cut-off events. [2024-10-14 17:05:15,717 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:05:15,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 516 conditions, 445 events. 24/445 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1219 event pairs, 24 based on Foata normal form. 0/412 useless extension candidates. Maximal degree in co-relation 455. Up to 63 conditions per place. [2024-10-14 17:05:15,720 INFO L140 encePairwiseOnDemand]: 234/240 looper letters, 15 selfloop transitions, 1 changer transitions 0/227 dead transitions. [2024-10-14 17:05:15,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 227 transitions, 492 flow [2024-10-14 17:05:15,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:05:15,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:05:15,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 678 transitions. [2024-10-14 17:05:15,722 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9416666666666667 [2024-10-14 17:05:15,723 INFO L175 Difference]: Start difference. First operand has 237 places, 232 transitions, 470 flow. Second operand 3 states and 678 transitions. [2024-10-14 17:05:15,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 227 transitions, 492 flow [2024-10-14 17:05:15,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 227 transitions, 488 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:05:15,727 INFO L231 Difference]: Finished difference. Result has 232 places, 227 transitions, 458 flow [2024-10-14 17:05:15,728 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=458, PETRI_PLACES=232, PETRI_TRANSITIONS=227} [2024-10-14 17:05:15,729 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -11 predicate places. [2024-10-14 17:05:15,730 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 227 transitions, 458 flow [2024-10-14 17:05:15,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 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) [2024-10-14 17:05:15,730 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:15,731 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] [2024-10-14 17:05:15,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 17:05:15,731 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:15,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:15,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1505942631, now seen corresponding path program 1 times [2024-10-14 17:05:15,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:15,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901819765] [2024-10-14 17:05:15,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:15,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:16,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:16,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:16,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901819765] [2024-10-14 17:05:16,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901819765] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:16,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:16,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:05:16,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735945268] [2024-10-14 17:05:16,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:16,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:05:16,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:16,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:05:16,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:05:16,620 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 240 [2024-10-14 17:05:16,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 227 transitions, 458 flow. Second operand has 6 states, 6 states have (on average 172.16666666666666) internal successors, (1033), 6 states have internal predecessors, (1033), 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) [2024-10-14 17:05:16,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:16,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 240 [2024-10-14 17:05:16,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:16,786 INFO L124 PetriNetUnfolderBase]: 288/1198 cut-off events. [2024-10-14 17:05:16,787 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:05:16,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1851 conditions, 1198 events. 288/1198 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6404 event pairs, 288 based on Foata normal form. 0/1137 useless extension candidates. Maximal degree in co-relation 1780. Up to 643 conditions per place. [2024-10-14 17:05:16,793 INFO L140 encePairwiseOnDemand]: 234/240 looper letters, 66 selfloop transitions, 5 changer transitions 0/226 dead transitions. [2024-10-14 17:05:16,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 226 transitions, 598 flow [2024-10-14 17:05:16,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:05:16,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:05:16,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1080 transitions. [2024-10-14 17:05:16,796 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-10-14 17:05:16,796 INFO L175 Difference]: Start difference. First operand has 232 places, 227 transitions, 458 flow. Second operand 6 states and 1080 transitions. [2024-10-14 17:05:16,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 226 transitions, 598 flow [2024-10-14 17:05:16,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 226 transitions, 597 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:05:16,800 INFO L231 Difference]: Finished difference. Result has 235 places, 226 transitions, 465 flow [2024-10-14 17:05:16,800 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=465, PETRI_PLACES=235, PETRI_TRANSITIONS=226} [2024-10-14 17:05:16,801 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -8 predicate places. [2024-10-14 17:05:16,801 INFO L471 AbstractCegarLoop]: Abstraction has has 235 places, 226 transitions, 465 flow [2024-10-14 17:05:16,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 172.16666666666666) internal successors, (1033), 6 states have internal predecessors, (1033), 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) [2024-10-14 17:05:16,802 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:16,802 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] [2024-10-14 17:05:16,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 17:05:16,803 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:16,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:16,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1196565690, now seen corresponding path program 1 times [2024-10-14 17:05:16,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:16,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936624447] [2024-10-14 17:05:16,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:16,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:16,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:16,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:16,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:16,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936624447] [2024-10-14 17:05:16,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936624447] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:16,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:16,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:05:16,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726808273] [2024-10-14 17:05:16,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:16,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:05:16,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:16,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:05:16,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:05:16,901 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 240 [2024-10-14 17:05:16,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 226 transitions, 465 flow. Second operand has 3 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 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) [2024-10-14 17:05:16,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:16,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 240 [2024-10-14 17:05:16,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:16,939 INFO L124 PetriNetUnfolderBase]: 6/289 cut-off events. [2024-10-14 17:05:16,939 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:05:16,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 289 events. 6/289 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 397 event pairs, 6 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 263. Up to 23 conditions per place. [2024-10-14 17:05:16,940 INFO L140 encePairwiseOnDemand]: 237/240 looper letters, 10 selfloop transitions, 2 changer transitions 0/225 dead transitions. [2024-10-14 17:05:16,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 225 transitions, 487 flow [2024-10-14 17:05:16,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:05:16,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:05:16,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 694 transitions. [2024-10-14 17:05:16,943 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9638888888888889 [2024-10-14 17:05:16,943 INFO L175 Difference]: Start difference. First operand has 235 places, 226 transitions, 465 flow. Second operand 3 states and 694 transitions. [2024-10-14 17:05:16,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 225 transitions, 487 flow [2024-10-14 17:05:16,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 225 transitions, 477 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:05:16,946 INFO L231 Difference]: Finished difference. Result has 231 places, 225 transitions, 457 flow [2024-10-14 17:05:16,947 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=457, PETRI_PLACES=231, PETRI_TRANSITIONS=225} [2024-10-14 17:05:16,947 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -12 predicate places. [2024-10-14 17:05:16,948 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 225 transitions, 457 flow [2024-10-14 17:05:16,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 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) [2024-10-14 17:05:16,948 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:16,949 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] [2024-10-14 17:05:16,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 17:05:16,949 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:16,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:16,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1416804218, now seen corresponding path program 1 times [2024-10-14 17:05:16,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:16,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604560056] [2024-10-14 17:05:16,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:16,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:16,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:17,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:17,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:17,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604560056] [2024-10-14 17:05:17,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604560056] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:17,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:17,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:05:17,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331658764] [2024-10-14 17:05:17,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:17,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:05:17,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:17,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:05:17,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:05:17,020 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 240 [2024-10-14 17:05:17,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 225 transitions, 457 flow. Second operand has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 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) [2024-10-14 17:05:17,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:17,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 240 [2024-10-14 17:05:17,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:17,057 INFO L124 PetriNetUnfolderBase]: 4/286 cut-off events. [2024-10-14 17:05:17,057 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:05:17,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 286 events. 4/286 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 261 event pairs, 4 based on Foata normal form. 0/271 useless extension candidates. Maximal degree in co-relation 250. Up to 15 conditions per place. [2024-10-14 17:05:17,058 INFO L140 encePairwiseOnDemand]: 238/240 looper letters, 7 selfloop transitions, 1 changer transitions 0/224 dead transitions. [2024-10-14 17:05:17,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 224 transitions, 471 flow [2024-10-14 17:05:17,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:05:17,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:05:17,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 702 transitions. [2024-10-14 17:05:17,061 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.975 [2024-10-14 17:05:17,061 INFO L175 Difference]: Start difference. First operand has 231 places, 225 transitions, 457 flow. Second operand 3 states and 702 transitions. [2024-10-14 17:05:17,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 224 transitions, 471 flow [2024-10-14 17:05:17,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 224 transitions, 467 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:05:17,065 INFO L231 Difference]: Finished difference. Result has 230 places, 224 transitions, 453 flow [2024-10-14 17:05:17,065 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=453, PETRI_PLACES=230, PETRI_TRANSITIONS=224} [2024-10-14 17:05:17,066 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -13 predicate places. [2024-10-14 17:05:17,066 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 224 transitions, 453 flow [2024-10-14 17:05:17,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 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) [2024-10-14 17:05:17,067 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:17,067 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] [2024-10-14 17:05:17,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 17:05:17,067 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:17,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:17,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1164812758, now seen corresponding path program 1 times [2024-10-14 17:05:17,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:17,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597832644] [2024-10-14 17:05:17,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:17,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:17,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:17,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:17,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597832644] [2024-10-14 17:05:17,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597832644] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:17,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:17,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:05:17,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320054379] [2024-10-14 17:05:17,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:17,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:05:17,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:17,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:05:17,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:05:18,081 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 240 [2024-10-14 17:05:18,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 224 transitions, 453 flow. Second operand has 6 states, 6 states have (on average 181.33333333333334) internal successors, (1088), 6 states have internal predecessors, (1088), 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) [2024-10-14 17:05:18,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:18,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 240 [2024-10-14 17:05:18,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:18,547 INFO L124 PetriNetUnfolderBase]: 316/1522 cut-off events. [2024-10-14 17:05:18,547 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:05:18,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2262 conditions, 1522 events. 316/1522 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 9251 event pairs, 36 based on Foata normal form. 0/1432 useless extension candidates. Maximal degree in co-relation 2192. Up to 388 conditions per place. [2024-10-14 17:05:18,555 INFO L140 encePairwiseOnDemand]: 212/240 looper letters, 107 selfloop transitions, 70 changer transitions 0/336 dead transitions. [2024-10-14 17:05:18,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 336 transitions, 1031 flow [2024-10-14 17:05:18,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:05:18,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:05:18,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1229 transitions. [2024-10-14 17:05:18,558 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8534722222222222 [2024-10-14 17:05:18,558 INFO L175 Difference]: Start difference. First operand has 230 places, 224 transitions, 453 flow. Second operand 6 states and 1229 transitions. [2024-10-14 17:05:18,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 336 transitions, 1031 flow [2024-10-14 17:05:18,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 336 transitions, 1030 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:05:18,567 INFO L231 Difference]: Finished difference. Result has 238 places, 294 transitions, 930 flow [2024-10-14 17:05:18,568 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=930, PETRI_PLACES=238, PETRI_TRANSITIONS=294} [2024-10-14 17:05:18,569 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -5 predicate places. [2024-10-14 17:05:18,570 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 294 transitions, 930 flow [2024-10-14 17:05:18,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.33333333333334) internal successors, (1088), 6 states have internal predecessors, (1088), 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) [2024-10-14 17:05:18,571 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:18,571 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:05:18,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 17:05:18,571 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:18,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:18,574 INFO L85 PathProgramCache]: Analyzing trace with hash -420518204, now seen corresponding path program 1 times [2024-10-14 17:05:18,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:18,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059239463] [2024-10-14 17:05:18,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:18,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:19,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:19,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:19,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059239463] [2024-10-14 17:05:19,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059239463] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:19,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:19,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:05:19,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142831635] [2024-10-14 17:05:19,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:19,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:05:19,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:19,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:05:19,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:05:19,496 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 240 [2024-10-14 17:05:19,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 294 transitions, 930 flow. Second operand has 6 states, 6 states have (on average 182.16666666666666) internal successors, (1093), 6 states have internal predecessors, (1093), 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) [2024-10-14 17:05:19,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:19,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 240 [2024-10-14 17:05:19,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:19,903 INFO L124 PetriNetUnfolderBase]: 588/2293 cut-off events. [2024-10-14 17:05:19,904 INFO L125 PetriNetUnfolderBase]: For 602/608 co-relation queries the response was YES. [2024-10-14 17:05:19,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4691 conditions, 2293 events. 588/2293 cut-off events. For 602/608 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 15197 event pairs, 222 based on Foata normal form. 0/2182 useless extension candidates. Maximal degree in co-relation 4619. Up to 1090 conditions per place. [2024-10-14 17:05:19,919 INFO L140 encePairwiseOnDemand]: 225/240 looper letters, 114 selfloop transitions, 48 changer transitions 0/345 dead transitions. [2024-10-14 17:05:19,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 345 transitions, 1426 flow [2024-10-14 17:05:19,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:05:19,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:05:19,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1166 transitions. [2024-10-14 17:05:19,922 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8097222222222222 [2024-10-14 17:05:19,922 INFO L175 Difference]: Start difference. First operand has 238 places, 294 transitions, 930 flow. Second operand 6 states and 1166 transitions. [2024-10-14 17:05:19,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 345 transitions, 1426 flow [2024-10-14 17:05:19,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 345 transitions, 1426 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:05:19,936 INFO L231 Difference]: Finished difference. Result has 248 places, 337 transitions, 1318 flow [2024-10-14 17:05:19,937 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1318, PETRI_PLACES=248, PETRI_TRANSITIONS=337} [2024-10-14 17:05:19,938 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 5 predicate places. [2024-10-14 17:05:19,938 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 337 transitions, 1318 flow [2024-10-14 17:05:19,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.16666666666666) internal successors, (1093), 6 states have internal predecessors, (1093), 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) [2024-10-14 17:05:19,939 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:19,939 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] [2024-10-14 17:05:19,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 17:05:19,940 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:19,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:19,943 INFO L85 PathProgramCache]: Analyzing trace with hash 678966440, now seen corresponding path program 1 times [2024-10-14 17:05:19,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:19,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299065079] [2024-10-14 17:05:19,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:19,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:20,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:20,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:20,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299065079] [2024-10-14 17:05:20,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299065079] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:20,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:20,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:05:20,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444723101] [2024-10-14 17:05:20,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:20,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:05:20,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:20,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:05:20,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:05:20,907 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 240 [2024-10-14 17:05:20,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 337 transitions, 1318 flow. Second operand has 6 states, 6 states have (on average 187.33333333333334) internal successors, (1124), 6 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:20,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:20,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 240 [2024-10-14 17:05:20,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:21,494 INFO L124 PetriNetUnfolderBase]: 754/2823 cut-off events. [2024-10-14 17:05:21,494 INFO L125 PetriNetUnfolderBase]: For 1640/1696 co-relation queries the response was YES. [2024-10-14 17:05:21,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6590 conditions, 2823 events. 754/2823 cut-off events. For 1640/1696 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 19722 event pairs, 86 based on Foata normal form. 0/2729 useless extension candidates. Maximal degree in co-relation 6511. Up to 1017 conditions per place. [2024-10-14 17:05:21,511 INFO L140 encePairwiseOnDemand]: 217/240 looper letters, 136 selfloop transitions, 136 changer transitions 4/477 dead transitions. [2024-10-14 17:05:21,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 477 transitions, 2626 flow [2024-10-14 17:05:21,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:05:21,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:05:21,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1224 transitions. [2024-10-14 17:05:21,514 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.85 [2024-10-14 17:05:21,514 INFO L175 Difference]: Start difference. First operand has 248 places, 337 transitions, 1318 flow. Second operand 6 states and 1224 transitions. [2024-10-14 17:05:21,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 477 transitions, 2626 flow [2024-10-14 17:05:21,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 477 transitions, 2608 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-14 17:05:21,529 INFO L231 Difference]: Finished difference. Result has 258 places, 468 transitions, 2666 flow [2024-10-14 17:05:21,529 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=1300, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2666, PETRI_PLACES=258, PETRI_TRANSITIONS=468} [2024-10-14 17:05:21,530 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 15 predicate places. [2024-10-14 17:05:21,530 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 468 transitions, 2666 flow [2024-10-14 17:05:21,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.33333333333334) internal successors, (1124), 6 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:21,531 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:21,531 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:05:21,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 17:05:21,532 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:21,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:21,532 INFO L85 PathProgramCache]: Analyzing trace with hash -365900599, now seen corresponding path program 1 times [2024-10-14 17:05:21,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:21,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472982913] [2024-10-14 17:05:21,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:21,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:22,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:22,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:22,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472982913] [2024-10-14 17:05:22,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472982913] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:22,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:22,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:05:22,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233329289] [2024-10-14 17:05:22,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:22,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:05:22,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:22,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:05:22,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:05:22,396 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 240 [2024-10-14 17:05:22,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 468 transitions, 2666 flow. Second operand has 6 states, 6 states have (on average 182.16666666666666) internal successors, (1093), 6 states have internal predecessors, (1093), 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) [2024-10-14 17:05:22,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:22,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 240 [2024-10-14 17:05:22,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:22,959 INFO L124 PetriNetUnfolderBase]: 968/3386 cut-off events. [2024-10-14 17:05:22,960 INFO L125 PetriNetUnfolderBase]: For 3817/3888 co-relation queries the response was YES. [2024-10-14 17:05:22,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9627 conditions, 3386 events. 968/3386 cut-off events. For 3817/3888 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 24388 event pairs, 207 based on Foata normal form. 0/3298 useless extension candidates. Maximal degree in co-relation 9545. Up to 1565 conditions per place. [2024-10-14 17:05:22,991 INFO L140 encePairwiseOnDemand]: 225/240 looper letters, 239 selfloop transitions, 62 changer transitions 0/525 dead transitions. [2024-10-14 17:05:22,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 525 transitions, 3610 flow [2024-10-14 17:05:22,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:05:22,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:05:22,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1166 transitions. [2024-10-14 17:05:22,995 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8097222222222222 [2024-10-14 17:05:22,995 INFO L175 Difference]: Start difference. First operand has 258 places, 468 transitions, 2666 flow. Second operand 6 states and 1166 transitions. [2024-10-14 17:05:22,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 525 transitions, 3610 flow [2024-10-14 17:05:23,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 525 transitions, 3574 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-10-14 17:05:23,027 INFO L231 Difference]: Finished difference. Result has 268 places, 517 transitions, 3256 flow [2024-10-14 17:05:23,028 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=2630, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3256, PETRI_PLACES=268, PETRI_TRANSITIONS=517} [2024-10-14 17:05:23,029 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 25 predicate places. [2024-10-14 17:05:23,029 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 517 transitions, 3256 flow [2024-10-14 17:05:23,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.16666666666666) internal successors, (1093), 6 states have internal predecessors, (1093), 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) [2024-10-14 17:05:23,030 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:23,031 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] [2024-10-14 17:05:23,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 17:05:23,031 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:23,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:23,031 INFO L85 PathProgramCache]: Analyzing trace with hash 33238092, now seen corresponding path program 1 times [2024-10-14 17:05:23,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:23,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248263910] [2024-10-14 17:05:23,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:23,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:23,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:23,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:23,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:23,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248263910] [2024-10-14 17:05:23,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248263910] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:23,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:23,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 17:05:23,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789013035] [2024-10-14 17:05:23,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:23,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 17:05:23,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:23,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 17:05:23,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-14 17:05:25,458 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 240 [2024-10-14 17:05:25,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 517 transitions, 3256 flow. Second operand has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 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) [2024-10-14 17:05:25,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:25,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 240 [2024-10-14 17:05:25,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:27,097 INFO L124 PetriNetUnfolderBase]: 1524/5131 cut-off events. [2024-10-14 17:05:27,098 INFO L125 PetriNetUnfolderBase]: For 8793/8894 co-relation queries the response was YES. [2024-10-14 17:05:27,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16430 conditions, 5131 events. 1524/5131 cut-off events. For 8793/8894 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 41536 event pairs, 111 based on Foata normal form. 47/5076 useless extension candidates. Maximal degree in co-relation 16338. Up to 1002 conditions per place. [2024-10-14 17:05:27,154 INFO L140 encePairwiseOnDemand]: 211/240 looper letters, 478 selfloop transitions, 172 changer transitions 0/843 dead transitions. [2024-10-14 17:05:27,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 843 transitions, 7206 flow [2024-10-14 17:05:27,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 17:05:27,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-14 17:05:27,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3314 transitions. [2024-10-14 17:05:27,163 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7267543859649123 [2024-10-14 17:05:27,163 INFO L175 Difference]: Start difference. First operand has 268 places, 517 transitions, 3256 flow. Second operand 19 states and 3314 transitions. [2024-10-14 17:05:27,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 843 transitions, 7206 flow [2024-10-14 17:05:27,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 843 transitions, 7024 flow, removed 91 selfloop flow, removed 0 redundant places. [2024-10-14 17:05:27,240 INFO L231 Difference]: Finished difference. Result has 295 places, 640 transitions, 4992 flow [2024-10-14 17:05:27,241 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=3144, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4992, PETRI_PLACES=295, PETRI_TRANSITIONS=640} [2024-10-14 17:05:27,244 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 52 predicate places. [2024-10-14 17:05:27,244 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 640 transitions, 4992 flow [2024-10-14 17:05:27,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 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) [2024-10-14 17:05:27,245 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:27,245 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] [2024-10-14 17:05:27,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 17:05:27,246 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:27,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:27,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1740036200, now seen corresponding path program 2 times [2024-10-14 17:05:27,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:27,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165341104] [2024-10-14 17:05:27,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:27,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:27,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:28,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:28,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:28,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165341104] [2024-10-14 17:05:28,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165341104] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:28,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:28,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 17:05:28,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628127629] [2024-10-14 17:05:28,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:28,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 17:05:28,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:28,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 17:05:28,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-10-14 17:05:29,274 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 240 [2024-10-14 17:05:29,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 640 transitions, 4992 flow. Second operand has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 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) [2024-10-14 17:05:29,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:29,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 240 [2024-10-14 17:05:29,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:31,187 INFO L124 PetriNetUnfolderBase]: 2138/7193 cut-off events. [2024-10-14 17:05:31,188 INFO L125 PetriNetUnfolderBase]: For 17382/17602 co-relation queries the response was YES. [2024-10-14 17:05:31,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24652 conditions, 7193 events. 2138/7193 cut-off events. For 17382/17602 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 65467 event pairs, 198 based on Foata normal form. 57/7126 useless extension candidates. Maximal degree in co-relation 24547. Up to 2162 conditions per place. [2024-10-14 17:05:31,251 INFO L140 encePairwiseOnDemand]: 207/240 looper letters, 458 selfloop transitions, 189 changer transitions 1/841 dead transitions. [2024-10-14 17:05:31,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 841 transitions, 8174 flow [2024-10-14 17:05:31,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 17:05:31,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-14 17:05:31,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2614 transitions. [2024-10-14 17:05:31,259 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7261111111111112 [2024-10-14 17:05:31,259 INFO L175 Difference]: Start difference. First operand has 295 places, 640 transitions, 4992 flow. Second operand 15 states and 2614 transitions. [2024-10-14 17:05:31,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 841 transitions, 8174 flow [2024-10-14 17:05:31,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 841 transitions, 8119 flow, removed 14 selfloop flow, removed 5 redundant places. [2024-10-14 17:05:31,394 INFO L231 Difference]: Finished difference. Result has 314 places, 736 transitions, 7002 flow [2024-10-14 17:05:31,394 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=4951, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=640, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7002, PETRI_PLACES=314, PETRI_TRANSITIONS=736} [2024-10-14 17:05:31,395 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 71 predicate places. [2024-10-14 17:05:31,395 INFO L471 AbstractCegarLoop]: Abstraction has has 314 places, 736 transitions, 7002 flow [2024-10-14 17:05:31,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 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) [2024-10-14 17:05:31,397 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:31,397 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] [2024-10-14 17:05:31,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 17:05:31,397 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:31,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:31,398 INFO L85 PathProgramCache]: Analyzing trace with hash 2011476306, now seen corresponding path program 3 times [2024-10-14 17:05:31,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:31,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130583837] [2024-10-14 17:05:31,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:31,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:32,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:32,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:32,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130583837] [2024-10-14 17:05:32,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130583837] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:32,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:32,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 17:05:32,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780634831] [2024-10-14 17:05:32,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:32,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 17:05:32,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:32,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 17:05:32,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-14 17:05:33,540 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 240 [2024-10-14 17:05:33,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 736 transitions, 7002 flow. Second operand has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 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) [2024-10-14 17:05:33,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:33,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 240 [2024-10-14 17:05:33,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:36,343 INFO L124 PetriNetUnfolderBase]: 3213/10760 cut-off events. [2024-10-14 17:05:36,343 INFO L125 PetriNetUnfolderBase]: For 35505/35856 co-relation queries the response was YES. [2024-10-14 17:05:36,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38860 conditions, 10760 events. 3213/10760 cut-off events. For 35505/35856 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 108684 event pairs, 300 based on Foata normal form. 116/10688 useless extension candidates. Maximal degree in co-relation 38744. Up to 2268 conditions per place. [2024-10-14 17:05:36,458 INFO L140 encePairwiseOnDemand]: 205/240 looper letters, 525 selfloop transitions, 374 changer transitions 2/1094 dead transitions. [2024-10-14 17:05:36,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 1094 transitions, 12605 flow [2024-10-14 17:05:36,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 17:05:36,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-14 17:05:36,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3353 transitions. [2024-10-14 17:05:36,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7353070175438596 [2024-10-14 17:05:36,468 INFO L175 Difference]: Start difference. First operand has 314 places, 736 transitions, 7002 flow. Second operand 19 states and 3353 transitions. [2024-10-14 17:05:36,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 1094 transitions, 12605 flow [2024-10-14 17:05:36,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 1094 transitions, 12570 flow, removed 15 selfloop flow, removed 3 redundant places. [2024-10-14 17:05:36,877 INFO L231 Difference]: Finished difference. Result has 344 places, 884 transitions, 10755 flow [2024-10-14 17:05:36,878 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=6971, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=736, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=237, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=10755, PETRI_PLACES=344, PETRI_TRANSITIONS=884} [2024-10-14 17:05:36,878 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 101 predicate places. [2024-10-14 17:05:36,879 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 884 transitions, 10755 flow [2024-10-14 17:05:36,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 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) [2024-10-14 17:05:36,881 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:36,881 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] [2024-10-14 17:05:36,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 17:05:36,881 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:36,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:36,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1782067446, now seen corresponding path program 4 times [2024-10-14 17:05:36,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:36,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582507636] [2024-10-14 17:05:36,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:36,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:37,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:37,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:37,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582507636] [2024-10-14 17:05:37,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582507636] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:37,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:37,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 17:05:37,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276296445] [2024-10-14 17:05:37,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:37,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 17:05:37,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:37,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 17:05:37,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-14 17:05:38,569 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 240 [2024-10-14 17:05:38,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 884 transitions, 10755 flow. Second operand has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 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) [2024-10-14 17:05:38,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:38,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 240 [2024-10-14 17:05:38,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:41,124 INFO L124 PetriNetUnfolderBase]: 3264/10890 cut-off events. [2024-10-14 17:05:41,125 INFO L125 PetriNetUnfolderBase]: For 53230/53665 co-relation queries the response was YES. [2024-10-14 17:05:41,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42543 conditions, 10890 events. 3264/10890 cut-off events. For 53230/53665 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 109680 event pairs, 285 based on Foata normal form. 133/10851 useless extension candidates. Maximal degree in co-relation 42411. Up to 2156 conditions per place. [2024-10-14 17:05:41,233 INFO L140 encePairwiseOnDemand]: 219/240 looper letters, 670 selfloop transitions, 215 changer transitions 0/1078 dead transitions. [2024-10-14 17:05:41,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 1078 transitions, 14449 flow [2024-10-14 17:05:41,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 17:05:41,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-14 17:05:41,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3289 transitions. [2024-10-14 17:05:41,240 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7212719298245615 [2024-10-14 17:05:41,240 INFO L175 Difference]: Start difference. First operand has 344 places, 884 transitions, 10755 flow. Second operand 19 states and 3289 transitions. [2024-10-14 17:05:41,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 1078 transitions, 14449 flow [2024-10-14 17:05:41,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 1078 transitions, 14358 flow, removed 43 selfloop flow, removed 3 redundant places. [2024-10-14 17:05:41,675 INFO L231 Difference]: Finished difference. Result has 368 places, 945 transitions, 12283 flow [2024-10-14 17:05:41,677 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=10664, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=884, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=688, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=12283, PETRI_PLACES=368, PETRI_TRANSITIONS=945} [2024-10-14 17:05:41,678 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 125 predicate places. [2024-10-14 17:05:41,678 INFO L471 AbstractCegarLoop]: Abstraction has has 368 places, 945 transitions, 12283 flow [2024-10-14 17:05:41,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 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) [2024-10-14 17:05:41,679 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:41,679 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:05:41,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 17:05:41,679 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:41,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:41,680 INFO L85 PathProgramCache]: Analyzing trace with hash 225848600, now seen corresponding path program 5 times [2024-10-14 17:05:41,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:41,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535749350] [2024-10-14 17:05:41,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:41,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:41,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:42,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:42,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:42,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535749350] [2024-10-14 17:05:42,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535749350] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:42,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:42,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 17:05:42,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884163865] [2024-10-14 17:05:42,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:42,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 17:05:42,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:42,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 17:05:42,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-10-14 17:05:44,017 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 240 [2024-10-14 17:05:44,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 945 transitions, 12283 flow. Second operand has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 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) [2024-10-14 17:05:44,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:44,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 240 [2024-10-14 17:05:44,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:47,767 INFO L124 PetriNetUnfolderBase]: 4447/14652 cut-off events. [2024-10-14 17:05:47,767 INFO L125 PetriNetUnfolderBase]: For 82538/83171 co-relation queries the response was YES. [2024-10-14 17:05:47,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58255 conditions, 14652 events. 4447/14652 cut-off events. For 82538/83171 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 158568 event pairs, 382 based on Foata normal form. 176/14574 useless extension candidates. Maximal degree in co-relation 58113. Up to 3117 conditions per place. [2024-10-14 17:05:47,925 INFO L140 encePairwiseOnDemand]: 207/240 looper letters, 639 selfloop transitions, 413 changer transitions 3/1248 dead transitions. [2024-10-14 17:05:47,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 1248 transitions, 18249 flow [2024-10-14 17:05:47,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-14 17:05:47,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-10-14 17:05:47,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3528 transitions. [2024-10-14 17:05:47,930 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.735 [2024-10-14 17:05:47,930 INFO L175 Difference]: Start difference. First operand has 368 places, 945 transitions, 12283 flow. Second operand 20 states and 3528 transitions. [2024-10-14 17:05:47,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 1248 transitions, 18249 flow [2024-10-14 17:05:48,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 1248 transitions, 18068 flow, removed 66 selfloop flow, removed 9 redundant places. [2024-10-14 17:05:48,667 INFO L231 Difference]: Finished difference. Result has 389 places, 1060 transitions, 16157 flow [2024-10-14 17:05:48,668 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=12108, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=945, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=298, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=536, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=16157, PETRI_PLACES=389, PETRI_TRANSITIONS=1060} [2024-10-14 17:05:48,668 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 146 predicate places. [2024-10-14 17:05:48,668 INFO L471 AbstractCegarLoop]: Abstraction has has 389 places, 1060 transitions, 16157 flow [2024-10-14 17:05:48,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 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) [2024-10-14 17:05:48,669 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:48,670 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] [2024-10-14 17:05:48,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 17:05:48,670 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:48,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:48,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1938151713, now seen corresponding path program 1 times [2024-10-14 17:05:48,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:48,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135269871] [2024-10-14 17:05:48,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:48,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:49,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:49,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:49,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135269871] [2024-10-14 17:05:49,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135269871] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:49,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:49,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 17:05:49,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609613443] [2024-10-14 17:05:49,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:49,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 17:05:49,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:49,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 17:05:49,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-10-14 17:05:51,312 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 240 [2024-10-14 17:05:51,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 1060 transitions, 16157 flow. Second operand has 13 states, 13 states have (on average 168.69230769230768) internal successors, (2193), 13 states have internal predecessors, (2193), 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) [2024-10-14 17:05:51,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:51,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 240 [2024-10-14 17:05:51,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:55,993 INFO L124 PetriNetUnfolderBase]: 5309/16661 cut-off events. [2024-10-14 17:05:55,993 INFO L125 PetriNetUnfolderBase]: For 101663/102170 co-relation queries the response was YES. [2024-10-14 17:05:56,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69922 conditions, 16661 events. 5309/16661 cut-off events. For 101663/102170 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 179044 event pairs, 824 based on Foata normal form. 102/16497 useless extension candidates. Maximal degree in co-relation 69769. Up to 3950 conditions per place. [2024-10-14 17:05:56,176 INFO L140 encePairwiseOnDemand]: 219/240 looper letters, 580 selfloop transitions, 241 changer transitions 0/1214 dead transitions. [2024-10-14 17:05:56,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 1214 transitions, 19689 flow [2024-10-14 17:05:56,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 17:05:56,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-14 17:05:56,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2325 transitions. [2024-10-14 17:05:56,180 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7451923076923077 [2024-10-14 17:05:56,180 INFO L175 Difference]: Start difference. First operand has 389 places, 1060 transitions, 16157 flow. Second operand 13 states and 2325 transitions. [2024-10-14 17:05:56,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 1214 transitions, 19689 flow [2024-10-14 17:05:56,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 1214 transitions, 19620 flow, removed 23 selfloop flow, removed 7 redundant places. [2024-10-14 17:05:56,820 INFO L231 Difference]: Finished difference. Result has 399 places, 1078 transitions, 17259 flow [2024-10-14 17:05:56,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=16112, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1060, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=223, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=822, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=17259, PETRI_PLACES=399, PETRI_TRANSITIONS=1078} [2024-10-14 17:05:56,821 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 156 predicate places. [2024-10-14 17:05:56,821 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 1078 transitions, 17259 flow [2024-10-14 17:05:56,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 168.69230769230768) internal successors, (2193), 13 states have internal predecessors, (2193), 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) [2024-10-14 17:05:56,822 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:56,822 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] [2024-10-14 17:05:56,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 17:05:56,823 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:56,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:56,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1493437770, now seen corresponding path program 6 times [2024-10-14 17:05:56,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:56,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616463941] [2024-10-14 17:05:56,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:56,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:57,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:57,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:57,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616463941] [2024-10-14 17:05:57,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616463941] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:57,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:57,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 17:05:57,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168819918] [2024-10-14 17:05:57,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:57,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 17:05:57,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:57,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 17:05:57,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-10-14 17:05:59,085 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 240 [2024-10-14 17:05:59,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 1078 transitions, 17259 flow. Second operand has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 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) [2024-10-14 17:05:59,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:59,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 240 [2024-10-14 17:05:59,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:06:04,264 INFO L124 PetriNetUnfolderBase]: 5021/16520 cut-off events. [2024-10-14 17:06:04,264 INFO L125 PetriNetUnfolderBase]: For 131274/132301 co-relation queries the response was YES. [2024-10-14 17:06:04,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73367 conditions, 16520 events. 5021/16520 cut-off events. For 131274/132301 co-relation queries the response was YES. Maximal size of possible extension queue 571. Compared 183994 event pairs, 400 based on Foata normal form. 317/16572 useless extension candidates. Maximal degree in co-relation 73209. Up to 3311 conditions per place. [2024-10-14 17:06:04,421 INFO L140 encePairwiseOnDemand]: 207/240 looper letters, 706 selfloop transitions, 440 changer transitions 3/1348 dead transitions. [2024-10-14 17:06:04,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 1348 transitions, 23490 flow [2024-10-14 17:06:04,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-14 17:06:04,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-14 17:06:04,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3696 transitions. [2024-10-14 17:06:04,424 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2024-10-14 17:06:04,424 INFO L175 Difference]: Start difference. First operand has 399 places, 1078 transitions, 17259 flow. Second operand 21 states and 3696 transitions. [2024-10-14 17:06:04,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 1348 transitions, 23490 flow [2024-10-14 17:06:05,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 1348 transitions, 23298 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-10-14 17:06:05,133 INFO L231 Difference]: Finished difference. Result has 419 places, 1158 transitions, 21034 flow [2024-10-14 17:06:05,134 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=17108, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1078, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=366, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=646, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=21034, PETRI_PLACES=419, PETRI_TRANSITIONS=1158} [2024-10-14 17:06:05,135 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 176 predicate places. [2024-10-14 17:06:05,135 INFO L471 AbstractCegarLoop]: Abstraction has has 419 places, 1158 transitions, 21034 flow [2024-10-14 17:06:05,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 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) [2024-10-14 17:06:05,136 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:06:05,136 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] [2024-10-14 17:06:05,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 17:06:05,136 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:06:05,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:06:05,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1877225190, now seen corresponding path program 7 times [2024-10-14 17:06:05,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:06:05,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747905011] [2024-10-14 17:06:05,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:06:05,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:06:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:06:06,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:06:06,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:06:06,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747905011] [2024-10-14 17:06:06,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747905011] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:06:06,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:06:06,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 17:06:06,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780720016] [2024-10-14 17:06:06,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:06:06,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 17:06:06,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:06:06,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 17:06:06,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-10-14 17:06:07,202 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 240 [2024-10-14 17:06:07,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 1158 transitions, 21034 flow. Second operand has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 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) [2024-10-14 17:06:07,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:06:07,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 240 [2024-10-14 17:06:07,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:06:12,354 INFO L124 PetriNetUnfolderBase]: 5383/17748 cut-off events. [2024-10-14 17:06:12,354 INFO L125 PetriNetUnfolderBase]: For 173637/174671 co-relation queries the response was YES. [2024-10-14 17:06:12,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81960 conditions, 17748 events. 5383/17748 cut-off events. For 173637/174671 co-relation queries the response was YES. Maximal size of possible extension queue 618. Compared 201050 event pairs, 416 based on Foata normal form. 351/17810 useless extension candidates. Maximal degree in co-relation 81795. Up to 3564 conditions per place. [2024-10-14 17:06:12,742 INFO L140 encePairwiseOnDemand]: 211/240 looper letters, 672 selfloop transitions, 566 changer transitions 0/1437 dead transitions. [2024-10-14 17:06:12,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 1437 transitions, 27948 flow [2024-10-14 17:06:12,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 17:06:12,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-14 17:06:12,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3315 transitions. [2024-10-14 17:06:12,747 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7269736842105263 [2024-10-14 17:06:12,747 INFO L175 Difference]: Start difference. First operand has 419 places, 1158 transitions, 21034 flow. Second operand 19 states and 3315 transitions. [2024-10-14 17:06:12,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 1437 transitions, 27948 flow [2024-10-14 17:06:13,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 1437 transitions, 27879 flow, removed 7 selfloop flow, removed 12 redundant places. [2024-10-14 17:06:13,536 INFO L231 Difference]: Finished difference. Result has 433 places, 1252 transitions, 25264 flow [2024-10-14 17:06:13,536 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=20965, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=474, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=599, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=25264, PETRI_PLACES=433, PETRI_TRANSITIONS=1252} [2024-10-14 17:06:13,537 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 190 predicate places. [2024-10-14 17:06:13,537 INFO L471 AbstractCegarLoop]: Abstraction has has 433 places, 1252 transitions, 25264 flow [2024-10-14 17:06:13,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 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) [2024-10-14 17:06:13,538 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:06:13,538 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] [2024-10-14 17:06:13,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 17:06:13,538 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:06:13,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:06:13,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1469722600, now seen corresponding path program 8 times [2024-10-14 17:06:13,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:06:13,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2956968] [2024-10-14 17:06:13,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:06:13,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:06:13,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:06:14,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:06:14,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:06:14,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2956968] [2024-10-14 17:06:14,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2956968] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:06:14,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:06:14,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 17:06:14,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302927362] [2024-10-14 17:06:14,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:06:14,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 17:06:14,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:06:14,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 17:06:14,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-10-14 17:06:15,555 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 240 [2024-10-14 17:06:15,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 1252 transitions, 25264 flow. Second operand has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 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) [2024-10-14 17:06:15,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:06:15,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 240 [2024-10-14 17:06:15,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:06:21,856 INFO L124 PetriNetUnfolderBase]: 6105/20087 cut-off events. [2024-10-14 17:06:21,856 INFO L125 PetriNetUnfolderBase]: For 232809/233998 co-relation queries the response was YES. [2024-10-14 17:06:22,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96607 conditions, 20087 events. 6105/20087 cut-off events. For 232809/233998 co-relation queries the response was YES. Maximal size of possible extension queue 715. Compared 233722 event pairs, 557 based on Foata normal form. 399/20154 useless extension candidates. Maximal degree in co-relation 96434. Up to 4014 conditions per place. [2024-10-14 17:06:22,300 INFO L140 encePairwiseOnDemand]: 208/240 looper letters, 831 selfloop transitions, 556 changer transitions 2/1588 dead transitions. [2024-10-14 17:06:22,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 1588 transitions, 33710 flow [2024-10-14 17:06:22,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-14 17:06:22,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-14 17:06:22,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3686 transitions. [2024-10-14 17:06:22,305 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7313492063492063 [2024-10-14 17:06:22,305 INFO L175 Difference]: Start difference. First operand has 433 places, 1252 transitions, 25264 flow. Second operand 21 states and 3686 transitions. [2024-10-14 17:06:22,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 1588 transitions, 33710 flow [2024-10-14 17:06:23,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 1588 transitions, 33541 flow, removed 60 selfloop flow, removed 9 redundant places. [2024-10-14 17:06:23,668 INFO L231 Difference]: Finished difference. Result has 453 places, 1365 transitions, 30656 flow [2024-10-14 17:06:23,669 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=25095, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=450, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=705, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=30656, PETRI_PLACES=453, PETRI_TRANSITIONS=1365} [2024-10-14 17:06:23,669 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 210 predicate places. [2024-10-14 17:06:23,670 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 1365 transitions, 30656 flow [2024-10-14 17:06:23,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 166.69230769230768) internal successors, (2167), 13 states have internal predecessors, (2167), 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) [2024-10-14 17:06:23,671 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:06:23,671 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] [2024-10-14 17:06:23,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 17:06:23,671 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:06:23,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:06:23,672 INFO L85 PathProgramCache]: Analyzing trace with hash -508116584, now seen corresponding path program 9 times [2024-10-14 17:06:23,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:06:23,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986733018] [2024-10-14 17:06:23,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:06:23,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:06:23,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:06:24,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:06:24,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:06:24,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986733018] [2024-10-14 17:06:24,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986733018] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:06:24,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:06:24,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 17:06:24,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604792758] [2024-10-14 17:06:24,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:06:24,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 17:06:24,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:06:24,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 17:06:24,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156