./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.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 3eff698bae51c39e8a3a4c763800dbda831dabb73a169fa31c8e326faee47cd8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 17:53:13,988 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 17:53:14,036 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 17:53:14,039 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 17:53:14,039 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 17:53:14,053 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 17:53:14,054 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 17:53:14,054 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 17:53:14,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 17:53:14,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 17:53:14,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 17:53:14,055 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 17:53:14,056 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 17:53:14,056 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 17:53:14,056 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 17:53:14,056 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 17:53:14,057 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 17:53:14,057 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 17:53:14,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 17:53:14,058 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 17:53:14,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 17:53:14,058 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 17:53:14,058 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 17:53:14,059 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 17:53:14,059 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 17:53:14,059 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 17:53:14,059 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 17:53:14,059 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 17:53:14,060 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 17:53:14,060 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 17:53:14,060 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 17:53:14,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:53:14,060 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 17:53:14,061 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 17:53:14,061 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 17:53:14,061 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 17:53:14,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 17:53:14,064 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 17:53:14,064 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 17:53:14,065 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 17:53:14,065 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 17:53:14,065 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3eff698bae51c39e8a3a4c763800dbda831dabb73a169fa31c8e326faee47cd8 [2024-11-22 17:53:14,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 17:53:14,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 17:53:14,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 17:53:14,288 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 17:53:14,288 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 17:53:14,289 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i [2024-11-22 17:53:15,531 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 17:53:15,717 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 17:53:15,717 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i [2024-11-22 17:53:15,737 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7da67b768/c4e642618c084f889853f28e44b5c746/FLAGd5357dadb [2024-11-22 17:53:15,750 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7da67b768/c4e642618c084f889853f28e44b5c746 [2024-11-22 17:53:15,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 17:53:15,753 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 17:53:15,755 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 17:53:15,755 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 17:53:15,759 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 17:53:15,760 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:53:15" (1/1) ... [2024-11-22 17:53:15,760 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@550cf6c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:53:15, skipping insertion in model container [2024-11-22 17:53:15,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:53:15" (1/1) ... [2024-11-22 17:53:15,794 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 17:53:16,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:53:16,119 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 17:53:16,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:53:16,196 INFO L204 MainTranslator]: Completed translation [2024-11-22 17:53:16,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:53:16 WrapperNode [2024-11-22 17:53:16,197 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 17:53:16,198 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 17:53:16,198 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 17:53:16,198 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 17:53:16,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:53:16" (1/1) ... [2024-11-22 17:53:16,224 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:53:16" (1/1) ... [2024-11-22 17:53:16,247 INFO L138 Inliner]: procedures = 171, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 114 [2024-11-22 17:53:16,250 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 17:53:16,250 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 17:53:16,251 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 17:53:16,251 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 17:53:16,259 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:53:16" (1/1) ... [2024-11-22 17:53:16,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:53:16" (1/1) ... [2024-11-22 17:53:16,263 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:53:16" (1/1) ... [2024-11-22 17:53:16,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:53:16" (1/1) ... [2024-11-22 17:53:16,274 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:53:16" (1/1) ... [2024-11-22 17:53:16,281 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:53:16" (1/1) ... [2024-11-22 17:53:16,283 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:53:16" (1/1) ... [2024-11-22 17:53:16,287 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:53:16" (1/1) ... [2024-11-22 17:53:16,289 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 17:53:16,294 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 17:53:16,294 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 17:53:16,294 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 17:53:16,295 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:53:16" (1/1) ... [2024-11-22 17:53:16,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:53:16,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:53:16,335 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) [2024-11-22 17:53:16,344 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 [2024-11-22 17:53:16,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-22 17:53:16,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-22 17:53:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-22 17:53:16,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 17:53:16,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 17:53:16,404 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-22 17:53:16,404 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-22 17:53:16,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 17:53:16,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 17:53:16,404 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-22 17:53:16,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 17:53:16,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 17:53:16,406 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 17:53:16,514 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 17:53:16,516 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 17:53:16,787 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 17:53:16,787 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 17:53:16,814 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 17:53:16,814 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-22 17:53:16,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:53:16 BoogieIcfgContainer [2024-11-22 17:53:16,814 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 17:53:16,816 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 17:53:16,816 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 17:53:16,819 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 17:53:16,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:53:15" (1/3) ... [2024-11-22 17:53:16,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf73008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:53:16, skipping insertion in model container [2024-11-22 17:53:16,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:53:16" (2/3) ... [2024-11-22 17:53:16,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf73008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:53:16, skipping insertion in model container [2024-11-22 17:53:16,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:53:16" (3/3) ... [2024-11-22 17:53:16,821 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_36-indirect_racefree.i [2024-11-22 17:53:16,837 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 17:53:16,837 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-11-22 17:53:16,837 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 17:53:16,920 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-22 17:53:16,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 189 transitions, 385 flow [2024-11-22 17:53:17,040 INFO L124 PetriNetUnfolderBase]: 19/256 cut-off events. [2024-11-22 17:53:17,041 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 17:53:17,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 256 events. 19/256 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 785 event pairs, 0 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 139. Up to 4 conditions per place. [2024-11-22 17:53:17,051 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 189 transitions, 385 flow [2024-11-22 17:53:17,060 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 189 transitions, 385 flow [2024-11-22 17:53:17,072 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:53:17,078 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;@481dd7c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:53:17,081 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-22 17:53:17,088 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:53:17,088 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-11-22 17:53:17,089 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:53:17,089 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:53:17,090 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:53:17,090 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-22 17:53:17,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:53:17,095 INFO L85 PathProgramCache]: Analyzing trace with hash -593581314, now seen corresponding path program 1 times [2024-11-22 17:53:17,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:53:17,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921048963] [2024-11-22 17:53:17,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:53:17,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:53:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:53:17,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:53:17,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:53:17,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921048963] [2024-11-22 17:53:17,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921048963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:53:17,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:53:17,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:53:17,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130357988] [2024-11-22 17:53:17,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:53:17,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:53:17,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:53:17,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:53:17,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:53:17,374 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 189 [2024-11-22 17:53:17,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 189 transitions, 385 flow. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 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) [2024-11-22 17:53:17,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:53:17,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 189 [2024-11-22 17:53:17,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:53:17,584 INFO L124 PetriNetUnfolderBase]: 37/641 cut-off events. [2024-11-22 17:53:17,585 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-22 17:53:17,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 641 events. 37/641 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2909 event pairs, 36 based on Foata normal form. 62/639 useless extension candidates. Maximal degree in co-relation 617. Up to 97 conditions per place. [2024-11-22 17:53:17,593 INFO L140 encePairwiseOnDemand]: 174/189 looper letters, 18 selfloop transitions, 2 changer transitions 0/174 dead transitions. [2024-11-22 17:53:17,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 174 transitions, 395 flow [2024-11-22 17:53:17,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:53:17,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:53:17,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 498 transitions. [2024-11-22 17:53:17,609 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8783068783068783 [2024-11-22 17:53:17,612 INFO L175 Difference]: Start difference. First operand has 179 places, 189 transitions, 385 flow. Second operand 3 states and 498 transitions. [2024-11-22 17:53:17,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 174 transitions, 395 flow [2024-11-22 17:53:17,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 174 transitions, 395 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:53:17,620 INFO L231 Difference]: Finished difference. Result has 178 places, 174 transitions, 359 flow [2024-11-22 17:53:17,622 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=359, PETRI_PLACES=178, PETRI_TRANSITIONS=174} [2024-11-22 17:53:17,626 INFO L277 CegarLoopForPetriNet]: 179 programPoint places, -1 predicate places. [2024-11-22 17:53:17,627 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 174 transitions, 359 flow [2024-11-22 17:53:17,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 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) [2024-11-22 17:53:17,627 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:53:17,628 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] [2024-11-22 17:53:17,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 17:53:17,628 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-22 17:53:17,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:53:17,630 INFO L85 PathProgramCache]: Analyzing trace with hash 799022631, now seen corresponding path program 1 times [2024-11-22 17:53:17,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:53:17,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985279989] [2024-11-22 17:53:17,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:53:17,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:53:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:53:17,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:53:17,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:53:17,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985279989] [2024-11-22 17:53:17,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985279989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:53:17,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:53:17,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:53:17,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745214284] [2024-11-22 17:53:17,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:53:17,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:53:17,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:53:17,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:53:17,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:53:17,729 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 189 [2024-11-22 17:53:17,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 174 transitions, 359 flow. Second operand has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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) [2024-11-22 17:53:17,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:53:17,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 189 [2024-11-22 17:53:17,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:53:17,821 INFO L124 PetriNetUnfolderBase]: 37/638 cut-off events. [2024-11-22 17:53:17,821 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-22 17:53:17,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 742 conditions, 638 events. 37/638 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2889 event pairs, 36 based on Foata normal form. 0/579 useless extension candidates. Maximal degree in co-relation 702. Up to 94 conditions per place. [2024-11-22 17:53:17,828 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 16 selfloop transitions, 1 changer transitions 0/172 dead transitions. [2024-11-22 17:53:17,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 172 transitions, 389 flow [2024-11-22 17:53:17,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:53:17,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:53:17,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 490 transitions. [2024-11-22 17:53:17,830 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8641975308641975 [2024-11-22 17:53:17,833 INFO L175 Difference]: Start difference. First operand has 178 places, 174 transitions, 359 flow. Second operand 3 states and 490 transitions. [2024-11-22 17:53:17,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 172 transitions, 389 flow [2024-11-22 17:53:17,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 172 transitions, 385 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:53:17,838 INFO L231 Difference]: Finished difference. Result has 176 places, 172 transitions, 353 flow [2024-11-22 17:53:17,838 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=353, PETRI_PLACES=176, PETRI_TRANSITIONS=172} [2024-11-22 17:53:17,841 INFO L277 CegarLoopForPetriNet]: 179 programPoint places, -3 predicate places. [2024-11-22 17:53:17,841 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 172 transitions, 353 flow [2024-11-22 17:53:17,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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) [2024-11-22 17:53:17,842 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:53:17,842 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] [2024-11-22 17:53:17,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 17:53:17,842 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-22 17:53:17,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:53:17,843 INFO L85 PathProgramCache]: Analyzing trace with hash 156834859, now seen corresponding path program 1 times [2024-11-22 17:53:17,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:53:17,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239592008] [2024-11-22 17:53:17,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:53:17,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:53:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:53:17,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:53:17,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:53:17,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239592008] [2024-11-22 17:53:17,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239592008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:53:17,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:53:17,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:53:17,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744927742] [2024-11-22 17:53:17,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:53:17,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:53:17,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:53:17,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:53:17,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:53:17,940 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 189 [2024-11-22 17:53:17,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 172 transitions, 353 flow. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 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) [2024-11-22 17:53:17,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:53:17,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 189 [2024-11-22 17:53:17,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:53:18,049 INFO L124 PetriNetUnfolderBase]: 41/579 cut-off events. [2024-11-22 17:53:18,049 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-22 17:53:18,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 692 conditions, 579 events. 41/579 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2572 event pairs, 40 based on Foata normal form. 0/523 useless extension candidates. Maximal degree in co-relation 654. Up to 104 conditions per place. [2024-11-22 17:53:18,053 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 18 selfloop transitions, 2 changer transitions 0/171 dead transitions. [2024-11-22 17:53:18,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 171 transitions, 391 flow [2024-11-22 17:53:18,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:53:18,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:53:18,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 486 transitions. [2024-11-22 17:53:18,055 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2024-11-22 17:53:18,055 INFO L175 Difference]: Start difference. First operand has 176 places, 172 transitions, 353 flow. Second operand 3 states and 486 transitions. [2024-11-22 17:53:18,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 171 transitions, 391 flow [2024-11-22 17:53:18,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 171 transitions, 390 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:53:18,060 INFO L231 Difference]: Finished difference. Result has 176 places, 171 transitions, 354 flow [2024-11-22 17:53:18,061 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=176, PETRI_TRANSITIONS=171} [2024-11-22 17:53:18,062 INFO L277 CegarLoopForPetriNet]: 179 programPoint places, -3 predicate places. [2024-11-22 17:53:18,062 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 171 transitions, 354 flow [2024-11-22 17:53:18,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 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) [2024-11-22 17:53:18,063 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:53:18,063 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:53:18,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 17:53:18,064 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-22 17:53:18,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:53:18,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1167134520, now seen corresponding path program 1 times [2024-11-22 17:53:18,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:53:18,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607865772] [2024-11-22 17:53:18,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:53:18,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:53:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:53:18,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:53:18,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:53:18,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607865772] [2024-11-22 17:53:18,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607865772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:53:18,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:53:18,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:53:18,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535201069] [2024-11-22 17:53:18,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:53:18,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:53:18,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:53:18,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:53:18,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:53:18,759 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 189 [2024-11-22 17:53:18,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 171 transitions, 354 flow. Second operand has 6 states, 6 states have (on average 127.5) internal successors, (765), 6 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:53:18,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:53:18,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 189 [2024-11-22 17:53:18,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:53:19,224 INFO L124 PetriNetUnfolderBase]: 579/2265 cut-off events. [2024-11-22 17:53:19,225 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-22 17:53:19,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3527 conditions, 2265 events. 579/2265 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 15926 event pairs, 357 based on Foata normal form. 0/2071 useless extension candidates. Maximal degree in co-relation 3489. Up to 1080 conditions per place. [2024-11-22 17:53:19,234 INFO L140 encePairwiseOnDemand]: 166/189 looper letters, 73 selfloop transitions, 70 changer transitions 0/264 dead transitions. [2024-11-22 17:53:19,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 264 transitions, 826 flow [2024-11-22 17:53:19,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:53:19,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:53:19,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 900 transitions. [2024-11-22 17:53:19,237 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7936507936507936 [2024-11-22 17:53:19,237 INFO L175 Difference]: Start difference. First operand has 176 places, 171 transitions, 354 flow. Second operand 6 states and 900 transitions. [2024-11-22 17:53:19,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 264 transitions, 826 flow [2024-11-22 17:53:19,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 264 transitions, 822 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:53:19,244 INFO L231 Difference]: Finished difference. Result has 184 places, 240 transitions, 812 flow [2024-11-22 17:53:19,244 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=812, PETRI_PLACES=184, PETRI_TRANSITIONS=240} [2024-11-22 17:53:19,245 INFO L277 CegarLoopForPetriNet]: 179 programPoint places, 5 predicate places. [2024-11-22 17:53:19,245 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 240 transitions, 812 flow [2024-11-22 17:53:19,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 127.5) internal successors, (765), 6 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:53:19,246 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:53:19,246 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:53:19,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 17:53:19,247 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-22 17:53:19,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:53:19,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1082079899, now seen corresponding path program 1 times [2024-11-22 17:53:19,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:53:19,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309024354] [2024-11-22 17:53:19,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:53:19,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:53:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:53:19,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:53:19,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:53:19,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309024354] [2024-11-22 17:53:19,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309024354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:53:19,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:53:19,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 17:53:19,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030944417] [2024-11-22 17:53:19,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:53:19,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:53:19,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:53:19,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:53:19,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:53:19,305 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 189 [2024-11-22 17:53:19,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 240 transitions, 812 flow. Second operand has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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) [2024-11-22 17:53:19,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:53:19,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 189 [2024-11-22 17:53:19,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:53:19,403 INFO L124 PetriNetUnfolderBase]: 188/1122 cut-off events. [2024-11-22 17:53:19,404 INFO L125 PetriNetUnfolderBase]: For 104/107 co-relation queries the response was YES. [2024-11-22 17:53:19,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1825 conditions, 1122 events. 188/1122 cut-off events. For 104/107 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6508 event pairs, 28 based on Foata normal form. 1/1044 useless extension candidates. Maximal degree in co-relation 1783. Up to 191 conditions per place. [2024-11-22 17:53:19,410 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 22 selfloop transitions, 3 changer transitions 0/246 dead transitions. [2024-11-22 17:53:19,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 246 transitions, 874 flow [2024-11-22 17:53:19,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:53:19,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:53:19,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 499 transitions. [2024-11-22 17:53:19,412 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8800705467372134 [2024-11-22 17:53:19,412 INFO L175 Difference]: Start difference. First operand has 184 places, 240 transitions, 812 flow. Second operand 3 states and 499 transitions. [2024-11-22 17:53:19,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 246 transitions, 874 flow [2024-11-22 17:53:19,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 246 transitions, 874 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:53:19,418 INFO L231 Difference]: Finished difference. Result has 187 places, 240 transitions, 823 flow [2024-11-22 17:53:19,418 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=812, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=823, PETRI_PLACES=187, PETRI_TRANSITIONS=240} [2024-11-22 17:53:19,419 INFO L277 CegarLoopForPetriNet]: 179 programPoint places, 8 predicate places. [2024-11-22 17:53:19,419 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 240 transitions, 823 flow [2024-11-22 17:53:19,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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) [2024-11-22 17:53:19,420 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:53:19,420 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] [2024-11-22 17:53:19,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 17:53:19,420 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-22 17:53:19,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:53:19,421 INFO L85 PathProgramCache]: Analyzing trace with hash -158886799, now seen corresponding path program 1 times [2024-11-22 17:53:19,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:53:19,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376463290] [2024-11-22 17:53:19,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:53:19,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:53:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:53:19,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:53:19,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:53:19,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376463290] [2024-11-22 17:53:19,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376463290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:53:19,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:53:19,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:53:19,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702041052] [2024-11-22 17:53:19,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:53:19,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:53:19,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:53:19,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:53:19,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:53:19,485 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 189 [2024-11-22 17:53:19,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 240 transitions, 823 flow. Second operand has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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) [2024-11-22 17:53:19,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:53:19,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 189 [2024-11-22 17:53:19,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:53:19,583 INFO L124 PetriNetUnfolderBase]: 180/1058 cut-off events. [2024-11-22 17:53:19,584 INFO L125 PetriNetUnfolderBase]: For 94/99 co-relation queries the response was YES. [2024-11-22 17:53:19,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1804 conditions, 1058 events. 180/1058 cut-off events. For 94/99 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6175 event pairs, 22 based on Foata normal form. 0/998 useless extension candidates. Maximal degree in co-relation 1761. Up to 253 conditions per place. [2024-11-22 17:53:19,591 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 20 selfloop transitions, 1 changer transitions 0/242 dead transitions. [2024-11-22 17:53:19,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 242 transitions, 869 flow [2024-11-22 17:53:19,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:53:19,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:53:19,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 494 transitions. [2024-11-22 17:53:19,593 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8712522045855379 [2024-11-22 17:53:19,593 INFO L175 Difference]: Start difference. First operand has 187 places, 240 transitions, 823 flow. Second operand 3 states and 494 transitions. [2024-11-22 17:53:19,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 242 transitions, 869 flow [2024-11-22 17:53:19,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 242 transitions, 863 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:53:19,598 INFO L231 Difference]: Finished difference. Result has 185 places, 238 transitions, 815 flow [2024-11-22 17:53:19,599 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=815, PETRI_PLACES=185, PETRI_TRANSITIONS=238} [2024-11-22 17:53:19,600 INFO L277 CegarLoopForPetriNet]: 179 programPoint places, 6 predicate places. [2024-11-22 17:53:19,600 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 238 transitions, 815 flow [2024-11-22 17:53:19,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 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) [2024-11-22 17:53:19,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:53:19,601 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:53:19,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 17:53:19,601 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-22 17:53:19,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:53:19,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1545767196, now seen corresponding path program 1 times [2024-11-22 17:53:19,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:53:19,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521717188] [2024-11-22 17:53:19,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:53:19,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:53:19,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:53:19,624 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 17:53:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:53:19,666 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 17:53:19,667 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 17:53:19,668 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-22 17:53:19,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-22 17:53:19,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-22 17:53:19,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-22 17:53:19,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-22 17:53:19,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-22 17:53:19,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-11-22 17:53:19,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-22 17:53:19,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-22 17:53:19,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-22 17:53:19,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-22 17:53:19,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-22 17:53:19,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-22 17:53:19,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-22 17:53:19,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-22 17:53:19,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-22 17:53:19,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-22 17:53:19,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-22 17:53:19,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-22 17:53:19,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-22 17:53:19,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 17:53:19,675 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:53:19,678 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 17:53:19,679 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-22 17:53:19,717 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-22 17:53:19,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 245 places, 260 transitions, 536 flow [2024-11-22 17:53:19,756 INFO L124 PetriNetUnfolderBase]: 34/422 cut-off events. [2024-11-22 17:53:19,757 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-22 17:53:19,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 422 events. 34/422 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1618 event pairs, 0 based on Foata normal form. 0/356 useless extension candidates. Maximal degree in co-relation 258. Up to 8 conditions per place. [2024-11-22 17:53:19,761 INFO L82 GeneralOperation]: Start removeDead. Operand has 245 places, 260 transitions, 536 flow [2024-11-22 17:53:19,765 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 245 places, 260 transitions, 536 flow [2024-11-22 17:53:19,768 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:53:19,768 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;@481dd7c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:53:19,768 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-22 17:53:19,770 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:53:19,771 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-11-22 17:53:19,771 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:53:19,771 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:53:19,771 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:53:19,772 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-22 17:53:19,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:53:19,775 INFO L85 PathProgramCache]: Analyzing trace with hash -834612094, now seen corresponding path program 1 times [2024-11-22 17:53:19,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:53:19,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799391380] [2024-11-22 17:53:19,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:53:19,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:53:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:53:19,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:53:19,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:53:19,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799391380] [2024-11-22 17:53:19,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799391380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:53:19,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:53:19,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:53:19,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225819406] [2024-11-22 17:53:19,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:53:19,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:53:19,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:53:19,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:53:19,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:53:19,812 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 260 [2024-11-22 17:53:19,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 260 transitions, 536 flow. Second operand has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 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) [2024-11-22 17:53:19,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:53:19,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 260 [2024-11-22 17:53:19,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:53:20,401 INFO L124 PetriNetUnfolderBase]: 610/5005 cut-off events. [2024-11-22 17:53:20,401 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-22 17:53:20,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6083 conditions, 5005 events. 610/5005 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 46949 event pairs, 600 based on Foata normal form. 696/5201 useless extension candidates. Maximal degree in co-relation 5147. Up to 1033 conditions per place. [2024-11-22 17:53:20,433 INFO L140 encePairwiseOnDemand]: 239/260 looper letters, 26 selfloop transitions, 2 changer transitions 0/239 dead transitions. [2024-11-22 17:53:20,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 239 transitions, 550 flow [2024-11-22 17:53:20,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:53:20,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:53:20,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2024-11-22 17:53:20,435 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8756410256410256 [2024-11-22 17:53:20,435 INFO L175 Difference]: Start difference. First operand has 245 places, 260 transitions, 536 flow. Second operand 3 states and 683 transitions. [2024-11-22 17:53:20,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 239 transitions, 550 flow [2024-11-22 17:53:20,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 239 transitions, 550 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:53:20,486 INFO L231 Difference]: Finished difference. Result has 244 places, 239 transitions, 498 flow [2024-11-22 17:53:20,487 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=244, PETRI_TRANSITIONS=239} [2024-11-22 17:53:20,488 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, -1 predicate places. [2024-11-22 17:53:20,488 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 239 transitions, 498 flow [2024-11-22 17:53:20,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 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) [2024-11-22 17:53:20,489 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:53:20,489 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:53:20,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 17:53:20,490 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-22 17:53:20,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:53:20,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1096685355, now seen corresponding path program 1 times [2024-11-22 17:53:20,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:53:20,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489368249] [2024-11-22 17:53:20,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:53:20,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:53:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:53:20,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:53:20,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:53:20,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489368249] [2024-11-22 17:53:20,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489368249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:53:20,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:53:20,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:53:20,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760777593] [2024-11-22 17:53:20,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:53:20,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:53:20,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:53:20,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:53:20,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:53:20,519 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 260 [2024-11-22 17:53:20,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 239 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 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) [2024-11-22 17:53:20,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:53:20,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 260 [2024-11-22 17:53:20,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:53:21,080 INFO L124 PetriNetUnfolderBase]: 598/4939 cut-off events. [2024-11-22 17:53:21,081 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-11-22 17:53:21,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5998 conditions, 4939 events. 598/4939 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 46042 event pairs, 594 based on Foata normal form. 0/4460 useless extension candidates. Maximal degree in co-relation 5957. Up to 1011 conditions per place. [2024-11-22 17:53:21,106 INFO L140 encePairwiseOnDemand]: 257/260 looper letters, 24 selfloop transitions, 1 changer transitions 0/237 dead transitions. [2024-11-22 17:53:21,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 237 transitions, 544 flow [2024-11-22 17:53:21,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:53:21,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:53:21,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 669 transitions. [2024-11-22 17:53:21,108 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8576923076923076 [2024-11-22 17:53:21,108 INFO L175 Difference]: Start difference. First operand has 244 places, 239 transitions, 498 flow. Second operand 3 states and 669 transitions. [2024-11-22 17:53:21,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 237 transitions, 544 flow [2024-11-22 17:53:21,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 237 transitions, 540 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:53:21,112 INFO L231 Difference]: Finished difference. Result has 242 places, 237 transitions, 492 flow [2024-11-22 17:53:21,112 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=492, PETRI_PLACES=242, PETRI_TRANSITIONS=237} [2024-11-22 17:53:21,113 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, -3 predicate places. [2024-11-22 17:53:21,113 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 237 transitions, 492 flow [2024-11-22 17:53:21,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 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) [2024-11-22 17:53:21,113 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:53:21,114 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] [2024-11-22 17:53:21,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 17:53:21,114 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-22 17:53:21,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:53:21,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1440410577, now seen corresponding path program 1 times [2024-11-22 17:53:21,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:53:21,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551751909] [2024-11-22 17:53:21,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:53:21,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:53:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:53:21,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:53:21,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:53:21,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551751909] [2024-11-22 17:53:21,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551751909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:53:21,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:53:21,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:53:21,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135295523] [2024-11-22 17:53:21,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:53:21,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:53:21,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:53:21,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:53:21,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:53:21,156 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 260 [2024-11-22 17:53:21,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 237 transitions, 492 flow. Second operand has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 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) [2024-11-22 17:53:21,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:53:21,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 260 [2024-11-22 17:53:21,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:53:21,919 INFO L124 PetriNetUnfolderBase]: 868/5480 cut-off events. [2024-11-22 17:53:21,919 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-11-22 17:53:21,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6980 conditions, 5480 events. 868/5480 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 52502 event pairs, 856 based on Foata normal form. 0/4944 useless extension candidates. Maximal degree in co-relation 6941. Up to 1443 conditions per place. [2024-11-22 17:53:21,942 INFO L140 encePairwiseOnDemand]: 257/260 looper letters, 28 selfloop transitions, 2 changer transitions 0/236 dead transitions. [2024-11-22 17:53:21,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 236 transitions, 550 flow [2024-11-22 17:53:21,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:53:21,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:53:21,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 661 transitions. [2024-11-22 17:53:21,944 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8474358974358974 [2024-11-22 17:53:21,944 INFO L175 Difference]: Start difference. First operand has 242 places, 237 transitions, 492 flow. Second operand 3 states and 661 transitions. [2024-11-22 17:53:21,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 236 transitions, 550 flow [2024-11-22 17:53:21,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 236 transitions, 549 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:53:21,948 INFO L231 Difference]: Finished difference. Result has 242 places, 236 transitions, 493 flow [2024-11-22 17:53:21,948 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=493, PETRI_PLACES=242, PETRI_TRANSITIONS=236} [2024-11-22 17:53:21,949 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, -3 predicate places. [2024-11-22 17:53:21,949 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 236 transitions, 493 flow [2024-11-22 17:53:21,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 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) [2024-11-22 17:53:21,949 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:53:21,950 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:53:21,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 17:53:21,950 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-22 17:53:21,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:53:21,950 INFO L85 PathProgramCache]: Analyzing trace with hash 2106651580, now seen corresponding path program 1 times [2024-11-22 17:53:21,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:53:21,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602074841] [2024-11-22 17:53:21,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:53:21,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:53:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:53:22,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:53:22,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:53:22,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602074841] [2024-11-22 17:53:22,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602074841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:53:22,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:53:22,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:53:22,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213512902] [2024-11-22 17:53:22,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:53:22,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:53:22,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:53:22,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:53:22,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:53:22,389 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 260 [2024-11-22 17:53:22,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 236 transitions, 493 flow. Second operand has 6 states, 6 states have (on average 168.5) internal successors, (1011), 6 states have internal predecessors, (1011), 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) [2024-11-22 17:53:22,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:53:22,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 260 [2024-11-22 17:53:22,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:53:29,316 INFO L124 PetriNetUnfolderBase]: 29149/69746 cut-off events. [2024-11-22 17:53:29,317 INFO L125 PetriNetUnfolderBase]: For 710/710 co-relation queries the response was YES. [2024-11-22 17:53:29,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115282 conditions, 69746 events. 29149/69746 cut-off events. For 710/710 co-relation queries the response was YES. Maximal size of possible extension queue 1124. Compared 784271 event pairs, 19147 based on Foata normal form. 0/64958 useless extension candidates. Maximal degree in co-relation 115243. Up to 40545 conditions per place. [2024-11-22 17:53:29,659 INFO L140 encePairwiseOnDemand]: 221/260 looper letters, 122 selfloop transitions, 134 changer transitions 0/418 dead transitions. [2024-11-22 17:53:29,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 418 transitions, 1374 flow [2024-11-22 17:53:29,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:53:29,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:53:29,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1259 transitions. [2024-11-22 17:53:29,662 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8070512820512821 [2024-11-22 17:53:29,663 INFO L175 Difference]: Start difference. First operand has 242 places, 236 transitions, 493 flow. Second operand 6 states and 1259 transitions. [2024-11-22 17:53:29,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 418 transitions, 1374 flow [2024-11-22 17:53:29,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 418 transitions, 1370 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:53:29,682 INFO L231 Difference]: Finished difference. Result has 250 places, 369 transitions, 1367 flow [2024-11-22 17:53:29,683 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1367, PETRI_PLACES=250, PETRI_TRANSITIONS=369} [2024-11-22 17:53:29,684 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, 5 predicate places. [2024-11-22 17:53:29,684 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 369 transitions, 1367 flow [2024-11-22 17:53:29,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.5) internal successors, (1011), 6 states have internal predecessors, (1011), 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) [2024-11-22 17:53:29,686 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:53:29,686 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:53:29,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 17:53:29,686 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-22 17:53:29,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:53:29,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1957488873, now seen corresponding path program 1 times [2024-11-22 17:53:29,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:53:29,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454016021] [2024-11-22 17:53:29,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:53:29,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:53:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:53:29,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:53:29,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:53:29,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454016021] [2024-11-22 17:53:29,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454016021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:53:29,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:53:29,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 17:53:29,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48147831] [2024-11-22 17:53:29,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:53:29,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:53:29,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:53:29,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:53:29,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:53:29,742 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 260 [2024-11-22 17:53:29,743 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 369 transitions, 1367 flow. Second operand has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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) [2024-11-22 17:53:29,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:53:29,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 260 [2024-11-22 17:53:29,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:53:33,252 INFO L124 PetriNetUnfolderBase]: 11181/36615 cut-off events. [2024-11-22 17:53:33,252 INFO L125 PetriNetUnfolderBase]: For 5188/5618 co-relation queries the response was YES. [2024-11-22 17:53:33,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64096 conditions, 36615 events. 11181/36615 cut-off events. For 5188/5618 co-relation queries the response was YES. Maximal size of possible extension queue 708. Compared 432380 event pairs, 5145 based on Foata normal form. 1/33397 useless extension candidates. Maximal degree in co-relation 64053. Up to 12382 conditions per place. [2024-11-22 17:53:33,471 INFO L140 encePairwiseOnDemand]: 257/260 looper letters, 32 selfloop transitions, 3 changer transitions 0/377 dead transitions. [2024-11-22 17:53:33,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 377 transitions, 1459 flow [2024-11-22 17:53:33,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:53:33,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:53:33,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 679 transitions. [2024-11-22 17:53:33,473 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8705128205128205 [2024-11-22 17:53:33,473 INFO L175 Difference]: Start difference. First operand has 250 places, 369 transitions, 1367 flow. Second operand 3 states and 679 transitions. [2024-11-22 17:53:33,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 377 transitions, 1459 flow [2024-11-22 17:53:33,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 377 transitions, 1459 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:53:33,565 INFO L231 Difference]: Finished difference. Result has 253 places, 371 transitions, 1392 flow [2024-11-22 17:53:33,565 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1367, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1392, PETRI_PLACES=253, PETRI_TRANSITIONS=371} [2024-11-22 17:53:33,566 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, 8 predicate places. [2024-11-22 17:53:33,566 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 371 transitions, 1392 flow [2024-11-22 17:53:33,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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) [2024-11-22 17:53:33,567 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:53:33,567 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] [2024-11-22 17:53:33,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 17:53:33,567 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-22 17:53:33,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:53:33,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1022684854, now seen corresponding path program 1 times [2024-11-22 17:53:33,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:53:33,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488669216] [2024-11-22 17:53:33,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:53:33,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:53:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:53:33,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:53:33,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:53:33,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488669216] [2024-11-22 17:53:33,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488669216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:53:33,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:53:33,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:53:33,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380080809] [2024-11-22 17:53:33,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:53:33,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:53:33,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:53:33,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:53:33,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:53:33,616 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 260 [2024-11-22 17:53:33,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 371 transitions, 1392 flow. Second operand has 3 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 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) [2024-11-22 17:53:33,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:53:33,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 260 [2024-11-22 17:53:33,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:53:37,186 INFO L124 PetriNetUnfolderBase]: 10638/35054 cut-off events. [2024-11-22 17:53:37,186 INFO L125 PetriNetUnfolderBase]: For 4589/4737 co-relation queries the response was YES. [2024-11-22 17:53:37,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63548 conditions, 35054 events. 10638/35054 cut-off events. For 4589/4737 co-relation queries the response was YES. Maximal size of possible extension queue 643. Compared 408458 event pairs, 3939 based on Foata normal form. 0/33136 useless extension candidates. Maximal degree in co-relation 63504. Up to 12371 conditions per place. [2024-11-22 17:53:37,360 INFO L140 encePairwiseOnDemand]: 254/260 looper letters, 38 selfloop transitions, 2 changer transitions 0/378 dead transitions. [2024-11-22 17:53:37,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 378 transitions, 1491 flow [2024-11-22 17:53:37,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:53:37,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:53:37,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 668 transitions. [2024-11-22 17:53:37,362 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8564102564102564 [2024-11-22 17:53:37,362 INFO L175 Difference]: Start difference. First operand has 253 places, 371 transitions, 1392 flow. Second operand 3 states and 668 transitions. [2024-11-22 17:53:37,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 378 transitions, 1491 flow [2024-11-22 17:53:37,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 378 transitions, 1488 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:53:37,477 INFO L231 Difference]: Finished difference. Result has 251 places, 369 transitions, 1395 flow [2024-11-22 17:53:37,478 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1381, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1395, PETRI_PLACES=251, PETRI_TRANSITIONS=369} [2024-11-22 17:53:37,478 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, 6 predicate places. [2024-11-22 17:53:37,478 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 369 transitions, 1395 flow [2024-11-22 17:53:37,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 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) [2024-11-22 17:53:37,479 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:53:37,479 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:53:37,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 17:53:37,479 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-22 17:53:37,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:53:37,479 INFO L85 PathProgramCache]: Analyzing trace with hash -930052771, now seen corresponding path program 1 times [2024-11-22 17:53:37,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:53:37,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258065651] [2024-11-22 17:53:37,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:53:37,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:53:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:53:37,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:53:37,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:53:37,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258065651] [2024-11-22 17:53:37,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258065651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:53:37,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:53:37,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:53:37,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557239800] [2024-11-22 17:53:37,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:53:37,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:53:37,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:53:37,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:53:37,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:53:37,953 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 260 [2024-11-22 17:53:37,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 369 transitions, 1395 flow. Second operand has 6 states, 6 states have (on average 173.33333333333334) internal successors, (1040), 6 states have internal predecessors, (1040), 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) [2024-11-22 17:53:37,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:53:37,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 260 [2024-11-22 17:53:37,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:53:47,089 INFO L124 PetriNetUnfolderBase]: 39026/89468 cut-off events. [2024-11-22 17:53:47,089 INFO L125 PetriNetUnfolderBase]: For 32828/36283 co-relation queries the response was YES. [2024-11-22 17:53:47,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204101 conditions, 89468 events. 39026/89468 cut-off events. For 32828/36283 co-relation queries the response was YES. Maximal size of possible extension queue 1983. Compared 1034417 event pairs, 9779 based on Foata normal form. 47/85776 useless extension candidates. Maximal degree in co-relation 204056. Up to 36092 conditions per place. [2024-11-22 17:53:47,821 INFO L140 encePairwiseOnDemand]: 212/260 looper letters, 473 selfloop transitions, 219 changer transitions 0/860 dead transitions. [2024-11-22 17:53:47,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 860 transitions, 5009 flow [2024-11-22 17:53:47,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:53:47,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:53:47,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1364 transitions. [2024-11-22 17:53:47,824 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8743589743589744 [2024-11-22 17:53:47,824 INFO L175 Difference]: Start difference. First operand has 251 places, 369 transitions, 1395 flow. Second operand 6 states and 1364 transitions. [2024-11-22 17:53:47,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 860 transitions, 5009 flow [2024-11-22 17:53:48,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 860 transitions, 5009 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:53:48,114 INFO L231 Difference]: Finished difference. Result has 261 places, 600 transitions, 3711 flow [2024-11-22 17:53:48,114 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1395, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3711, PETRI_PLACES=261, PETRI_TRANSITIONS=600} [2024-11-22 17:53:48,115 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, 16 predicate places. [2024-11-22 17:53:48,115 INFO L471 AbstractCegarLoop]: Abstraction has has 261 places, 600 transitions, 3711 flow [2024-11-22 17:53:48,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.33333333333334) internal successors, (1040), 6 states have internal predecessors, (1040), 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) [2024-11-22 17:53:48,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:53:48,115 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] [2024-11-22 17:53:48,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 17:53:48,116 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-22 17:53:48,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:53:48,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1842964242, now seen corresponding path program 1 times [2024-11-22 17:53:48,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:53:48,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740101564] [2024-11-22 17:53:48,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:53:48,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:53:48,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:53:48,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:53:48,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:53:48,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740101564] [2024-11-22 17:53:48,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740101564] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:53:48,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963640754] [2024-11-22 17:53:48,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:53:48,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:53:48,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:53:48,167 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:53:48,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 17:53:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:53:48,239 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 17:53:48,241 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:53:48,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:53:48,290 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:53:48,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:53:48,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963640754] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:53:48,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:53:48,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-22 17:53:48,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554803434] [2024-11-22 17:53:48,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:53:48,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 17:53:48,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:53:48,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 17:53:48,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 17:53:48,403 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 260 [2024-11-22 17:53:48,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 600 transitions, 3711 flow. Second operand has 10 states, 10 states have (on average 214.3) internal successors, (2143), 10 states have internal predecessors, (2143), 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) [2024-11-22 17:53:48,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:53:48,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 260 [2024-11-22 17:53:48,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:53:54,839 INFO L124 PetriNetUnfolderBase]: 20947/55558 cut-off events. [2024-11-22 17:53:54,839 INFO L125 PetriNetUnfolderBase]: For 50807/53664 co-relation queries the response was YES. [2024-11-22 17:53:55,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149798 conditions, 55558 events. 20947/55558 cut-off events. For 50807/53664 co-relation queries the response was YES. Maximal size of possible extension queue 1058. Compared 624577 event pairs, 2777 based on Foata normal form. 554/54818 useless extension candidates. Maximal degree in co-relation 149748. Up to 19798 conditions per place. [2024-11-22 17:53:55,211 INFO L140 encePairwiseOnDemand]: 255/260 looper letters, 72 selfloop transitions, 9 changer transitions 0/606 dead transitions. [2024-11-22 17:53:55,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 606 transitions, 3877 flow [2024-11-22 17:53:55,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 17:53:55,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 17:53:55,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1989 transitions. [2024-11-22 17:53:55,215 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.85 [2024-11-22 17:53:55,215 INFO L175 Difference]: Start difference. First operand has 261 places, 600 transitions, 3711 flow. Second operand 9 states and 1989 transitions. [2024-11-22 17:53:55,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 606 transitions, 3877 flow [2024-11-22 17:53:55,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 606 transitions, 3859 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-22 17:53:55,684 INFO L231 Difference]: Finished difference. Result has 219 places, 550 transitions, 3603 flow [2024-11-22 17:53:55,685 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=3581, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=541, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3603, PETRI_PLACES=219, PETRI_TRANSITIONS=550} [2024-11-22 17:53:55,685 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, -26 predicate places. [2024-11-22 17:53:55,685 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 550 transitions, 3603 flow [2024-11-22 17:53:55,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 214.3) internal successors, (2143), 10 states have internal predecessors, (2143), 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) [2024-11-22 17:53:55,686 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:53:55,686 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:53:55,693 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 17:53:55,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-22 17:53:55,887 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-22 17:53:55,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:53:55,888 INFO L85 PathProgramCache]: Analyzing trace with hash 610691302, now seen corresponding path program 1 times [2024-11-22 17:53:55,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:53:55,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390302977] [2024-11-22 17:53:55,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:53:55,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:53:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:53:56,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:53:56,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:53:56,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390302977] [2024-11-22 17:53:56,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390302977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:53:56,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:53:56,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:53:56,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460187272] [2024-11-22 17:53:56,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:53:56,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:53:56,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:53:56,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:53:56,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:53:56,290 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 260 [2024-11-22 17:53:56,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 550 transitions, 3603 flow. Second operand has 6 states, 6 states have (on average 167.33333333333334) internal successors, (1004), 6 states have internal predecessors, (1004), 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) [2024-11-22 17:53:56,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:53:56,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 260 [2024-11-22 17:53:56,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand