./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.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/06-symbeq_08-tricky_address3.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 a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 17:49:01,158 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 17:49:01,217 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 17:49:01,222 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 17:49:01,223 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 17:49:01,246 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 17:49:01,248 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 17:49:01,248 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 17:49:01,249 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 17:49:01,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 17:49:01,251 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 17:49:01,251 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 17:49:01,252 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 17:49:01,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 17:49:01,253 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 17:49:01,253 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 17:49:01,254 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 17:49:01,254 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 17:49:01,256 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 17:49:01,256 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 17:49:01,257 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 17:49:01,257 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 17:49:01,257 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 17:49:01,257 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 17:49:01,258 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 17:49:01,258 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 17:49:01,258 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 17:49:01,258 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 17:49:01,258 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 17:49:01,258 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 17:49:01,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 17:49:01,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:49:01,259 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 17:49:01,259 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 17:49:01,259 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 17:49:01,260 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 17:49:01,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 17:49:01,260 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 17:49:01,262 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 17:49:01,262 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 17:49:01,262 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 17:49:01,262 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2024-11-22 17:49:01,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 17:49:01,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 17:49:01,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 17:49:01,496 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 17:49:01,496 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 17:49:01,497 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2024-11-22 17:49:02,714 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 17:49:02,941 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 17:49:02,942 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2024-11-22 17:49:02,959 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dfdeef4e/4da6ed930a854b89ba4227c5546c7680/FLAGd66b07d40 [2024-11-22 17:49:03,265 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dfdeef4e/4da6ed930a854b89ba4227c5546c7680 [2024-11-22 17:49:03,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 17:49:03,268 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 17:49:03,271 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 17:49:03,271 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 17:49:03,275 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 17:49:03,276 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:49:03" (1/1) ... [2024-11-22 17:49:03,277 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e704963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:49:03, skipping insertion in model container [2024-11-22 17:49:03,277 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:49:03" (1/1) ... [2024-11-22 17:49:03,319 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 17:49:03,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:49:03,668 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 17:49:03,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:49:03,751 INFO L204 MainTranslator]: Completed translation [2024-11-22 17:49:03,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:49:03 WrapperNode [2024-11-22 17:49:03,766 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 17:49:03,767 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 17:49:03,767 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 17:49:03,767 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 17:49:03,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:49:03" (1/1) ... [2024-11-22 17:49:03,792 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:49:03" (1/1) ... [2024-11-22 17:49:03,832 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 154 [2024-11-22 17:49:03,832 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 17:49:03,833 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 17:49:03,833 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 17:49:03,833 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 17:49:03,839 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:49:03" (1/1) ... [2024-11-22 17:49:03,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:49:03" (1/1) ... [2024-11-22 17:49:03,846 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:49:03" (1/1) ... [2024-11-22 17:49:03,846 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:49:03" (1/1) ... [2024-11-22 17:49:03,853 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:49:03" (1/1) ... [2024-11-22 17:49:03,855 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:49:03" (1/1) ... [2024-11-22 17:49:03,856 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:49:03" (1/1) ... [2024-11-22 17:49:03,860 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:49:03" (1/1) ... [2024-11-22 17:49:03,863 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 17:49:03,863 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 17:49:03,864 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 17:49:03,864 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 17:49:03,864 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:49:03" (1/1) ... [2024-11-22 17:49:03,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:49:03,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:49:03,897 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 17:49:03,901 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 17:49:03,938 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-22 17:49:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-22 17:49:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-22 17:49:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-22 17:49:03,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 17:49:03,940 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-22 17:49:03,940 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-22 17:49:03,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 17:49:03,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 17:49:03,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 17:49:03,941 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 17:49:04,052 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 17:49:04,053 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 17:49:04,304 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 17:49:04,305 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 17:49:04,330 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 17:49:04,331 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 17:49:04,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:49:04 BoogieIcfgContainer [2024-11-22 17:49:04,331 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 17:49:04,333 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 17:49:04,333 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 17:49:04,336 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 17:49:04,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:49:03" (1/3) ... [2024-11-22 17:49:04,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37580c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:49:04, skipping insertion in model container [2024-11-22 17:49:04,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:49:03" (2/3) ... [2024-11-22 17:49:04,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37580c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:49:04, skipping insertion in model container [2024-11-22 17:49:04,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:49:04" (3/3) ... [2024-11-22 17:49:04,338 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2024-11-22 17:49:04,351 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 17:49:04,352 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-22 17:49:04,352 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 17:49:04,400 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 17:49:04,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 164 transitions, 332 flow [2024-11-22 17:49:04,499 INFO L124 PetriNetUnfolderBase]: 4/163 cut-off events. [2024-11-22 17:49:04,499 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:49:04,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 163 events. 4/163 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2024-11-22 17:49:04,505 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 164 transitions, 332 flow [2024-11-22 17:49:04,510 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 163 transitions, 329 flow [2024-11-22 17:49:04,522 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:49:04,528 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;@1b019ecd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:49:04,528 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-22 17:49:04,551 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:49:04,552 INFO L124 PetriNetUnfolderBase]: 4/113 cut-off events. [2024-11-22 17:49:04,553 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:49:04,553 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:04,554 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:49:04,554 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:04,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:04,560 INFO L85 PathProgramCache]: Analyzing trace with hash 2026056588, now seen corresponding path program 1 times [2024-11-22 17:49:04,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:04,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055838746] [2024-11-22 17:49:04,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:49:04,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:49:04,959 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 17:49:04,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:04,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055838746] [2024-11-22 17:49:04,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055838746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:04,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:04,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 17:49:04,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288953101] [2024-11-22 17:49:04,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:04,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:49:04,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:04,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:49:04,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:49:05,011 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 164 [2024-11-22 17:49:05,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 163 transitions, 329 flow. Second operand has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 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 17:49:05,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:05,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 164 [2024-11-22 17:49:05,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:05,076 INFO L124 PetriNetUnfolderBase]: 7/224 cut-off events. [2024-11-22 17:49:05,077 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 17:49:05,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 224 events. 7/224 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 331 event pairs, 6 based on Foata normal form. 5/217 useless extension candidates. Maximal degree in co-relation 147. Up to 24 conditions per place. [2024-11-22 17:49:05,079 INFO L140 encePairwiseOnDemand]: 158/164 looper letters, 10 selfloop transitions, 2 changer transitions 1/161 dead transitions. [2024-11-22 17:49:05,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 161 transitions, 349 flow [2024-11-22 17:49:05,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:49:05,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:49:05,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 467 transitions. [2024-11-22 17:49:05,095 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9491869918699187 [2024-11-22 17:49:05,096 INFO L175 Difference]: Start difference. First operand has 163 places, 163 transitions, 329 flow. Second operand 3 states and 467 transitions. [2024-11-22 17:49:05,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 161 transitions, 349 flow [2024-11-22 17:49:05,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 161 transitions, 348 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:49:05,103 INFO L231 Difference]: Finished difference. Result has 165 places, 160 transitions, 332 flow [2024-11-22 17:49:05,106 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=165, PETRI_TRANSITIONS=160} [2024-11-22 17:49:05,109 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 2 predicate places. [2024-11-22 17:49:05,109 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 160 transitions, 332 flow [2024-11-22 17:49:05,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 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 17:49:05,110 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:05,111 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:49:05,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 17:49:05,112 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:05,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:05,113 INFO L85 PathProgramCache]: Analyzing trace with hash -2050415652, now seen corresponding path program 1 times [2024-11-22 17:49:05,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:05,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056699204] [2024-11-22 17:49:05,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:49:05,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:05,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:49:05,313 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 17:49:05,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:05,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056699204] [2024-11-22 17:49:05,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056699204] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:49:05,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586760007] [2024-11-22 17:49:05,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:49:05,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:49:05,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:49:05,317 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 17:49:05,321 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 17:49:05,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:49:05,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 17:49:05,428 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:49:05,491 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 17:49:05,492 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:49:05,535 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 17:49:05,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586760007] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:49:05,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:49:05,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-22 17:49:05,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113576499] [2024-11-22 17:49:05,538 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:49:05,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 17:49:05,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:05,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 17:49:05,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 17:49:05,576 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 164 [2024-11-22 17:49:05,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 160 transitions, 332 flow. Second operand has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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 17:49:05,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:05,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 164 [2024-11-22 17:49:05,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:05,684 INFO L124 PetriNetUnfolderBase]: 7/230 cut-off events. [2024-11-22 17:49:05,684 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 17:49:05,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 230 events. 7/230 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 324 event pairs, 6 based on Foata normal form. 2/221 useless extension candidates. Maximal degree in co-relation 194. Up to 24 conditions per place. [2024-11-22 17:49:05,686 INFO L140 encePairwiseOnDemand]: 158/164 looper letters, 14 selfloop transitions, 9 changer transitions 0/168 dead transitions. [2024-11-22 17:49:05,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 168 transitions, 396 flow [2024-11-22 17:49:05,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 17:49:05,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 17:49:05,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1348 transitions. [2024-11-22 17:49:05,689 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9132791327913279 [2024-11-22 17:49:05,690 INFO L175 Difference]: Start difference. First operand has 165 places, 160 transitions, 332 flow. Second operand 9 states and 1348 transitions. [2024-11-22 17:49:05,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 168 transitions, 396 flow [2024-11-22 17:49:05,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 168 transitions, 394 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:49:05,695 INFO L231 Difference]: Finished difference. Result has 174 places, 166 transitions, 380 flow [2024-11-22 17:49:05,695 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=380, PETRI_PLACES=174, PETRI_TRANSITIONS=166} [2024-11-22 17:49:05,696 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 11 predicate places. [2024-11-22 17:49:05,696 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 166 transitions, 380 flow [2024-11-22 17:49:05,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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 17:49:05,697 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:05,698 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:49:05,706 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 17:49:05,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:49:05,902 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:05,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:05,903 INFO L85 PathProgramCache]: Analyzing trace with hash -307645988, now seen corresponding path program 2 times [2024-11-22 17:49:05,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:05,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34208011] [2024-11-22 17:49:05,904 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:49:05,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:05,932 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:49:05,932 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:49:06,354 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 17:49:06,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:06,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34208011] [2024-11-22 17:49:06,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34208011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:06,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:06,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:49:06,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503369270] [2024-11-22 17:49:06,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:06,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:49:06,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:06,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:49:06,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:49:06,814 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 164 [2024-11-22 17:49:06,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 166 transitions, 380 flow. Second operand has 6 states, 6 states have (on average 138.66666666666666) internal successors, (832), 6 states have internal predecessors, (832), 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 17:49:06,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:06,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 164 [2024-11-22 17:49:06,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:06,960 INFO L124 PetriNetUnfolderBase]: 103/535 cut-off events. [2024-11-22 17:49:06,960 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-22 17:49:06,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 801 conditions, 535 events. 103/535 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2293 event pairs, 40 based on Foata normal form. 0/499 useless extension candidates. Maximal degree in co-relation 688. Up to 184 conditions per place. [2024-11-22 17:49:06,965 INFO L140 encePairwiseOnDemand]: 153/164 looper letters, 31 selfloop transitions, 22 changer transitions 0/195 dead transitions. [2024-11-22 17:49:06,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 195 transitions, 544 flow [2024-11-22 17:49:06,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:49:06,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:49:06,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 876 transitions. [2024-11-22 17:49:06,969 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8902439024390244 [2024-11-22 17:49:06,970 INFO L175 Difference]: Start difference. First operand has 174 places, 166 transitions, 380 flow. Second operand 6 states and 876 transitions. [2024-11-22 17:49:06,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 195 transitions, 544 flow [2024-11-22 17:49:06,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 195 transitions, 538 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-22 17:49:06,975 INFO L231 Difference]: Finished difference. Result has 183 places, 187 transitions, 524 flow [2024-11-22 17:49:06,976 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=524, PETRI_PLACES=183, PETRI_TRANSITIONS=187} [2024-11-22 17:49:06,977 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 20 predicate places. [2024-11-22 17:49:06,977 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 187 transitions, 524 flow [2024-11-22 17:49:06,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.66666666666666) internal successors, (832), 6 states have internal predecessors, (832), 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 17:49:06,978 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:06,979 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:49:06,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 17:49:06,979 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:06,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:06,979 INFO L85 PathProgramCache]: Analyzing trace with hash -434552530, now seen corresponding path program 1 times [2024-11-22 17:49:06,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:06,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266870539] [2024-11-22 17:49:06,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:49:06,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:49:07,173 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:49:07,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:07,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266870539] [2024-11-22 17:49:07,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266870539] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:49:07,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123773473] [2024-11-22 17:49:07,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:49:07,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:49:07,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:49:07,177 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:49:07,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 17:49:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:49:07,249 INFO L255 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 17:49:07,251 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:49:07,292 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:49:07,292 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:49:07,376 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:49:07,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123773473] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:49:07,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:49:07,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-22 17:49:07,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419835846] [2024-11-22 17:49:07,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:49:07,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-22 17:49:07,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:07,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-22 17:49:07,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-22 17:49:07,403 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 164 [2024-11-22 17:49:07,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 187 transitions, 524 flow. Second operand has 18 states, 18 states have (on average 149.0) internal successors, (2682), 18 states have internal predecessors, (2682), 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 17:49:07,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:07,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 164 [2024-11-22 17:49:07,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:07,596 INFO L124 PetriNetUnfolderBase]: 35/396 cut-off events. [2024-11-22 17:49:07,597 INFO L125 PetriNetUnfolderBase]: For 57/62 co-relation queries the response was YES. [2024-11-22 17:49:07,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 396 events. 35/396 cut-off events. For 57/62 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1162 event pairs, 11 based on Foata normal form. 4/384 useless extension candidates. Maximal degree in co-relation 479. Up to 51 conditions per place. [2024-11-22 17:49:07,599 INFO L140 encePairwiseOnDemand]: 158/164 looper letters, 18 selfloop transitions, 21 changer transitions 0/205 dead transitions. [2024-11-22 17:49:07,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 205 transitions, 690 flow [2024-11-22 17:49:07,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-22 17:49:07,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-22 17:49:07,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3130 transitions. [2024-11-22 17:49:07,604 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9088269454123112 [2024-11-22 17:49:07,604 INFO L175 Difference]: Start difference. First operand has 183 places, 187 transitions, 524 flow. Second operand 21 states and 3130 transitions. [2024-11-22 17:49:07,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 205 transitions, 690 flow [2024-11-22 17:49:07,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 205 transitions, 690 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:49:07,610 INFO L231 Difference]: Finished difference. Result has 208 places, 200 transitions, 654 flow [2024-11-22 17:49:07,611 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=654, PETRI_PLACES=208, PETRI_TRANSITIONS=200} [2024-11-22 17:49:07,612 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 45 predicate places. [2024-11-22 17:49:07,612 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 200 transitions, 654 flow [2024-11-22 17:49:07,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 149.0) internal successors, (2682), 18 states have internal predecessors, (2682), 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 17:49:07,614 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:07,614 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:49:07,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 17:49:07,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-22 17:49:07,818 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:07,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:07,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1059988178, now seen corresponding path program 2 times [2024-11-22 17:49:07,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:07,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680622964] [2024-11-22 17:49:07,819 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:49:07,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:07,843 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:49:07,843 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:49:08,132 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-22 17:49:08,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:08,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680622964] [2024-11-22 17:49:08,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680622964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:08,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:08,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:49:08,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303840508] [2024-11-22 17:49:08,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:08,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:49:08,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:08,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:49:08,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:49:08,560 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 164 [2024-11-22 17:49:08,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 200 transitions, 654 flow. Second operand has 6 states, 6 states have (on average 133.66666666666666) internal successors, (802), 6 states have internal predecessors, (802), 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 17:49:08,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:08,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 164 [2024-11-22 17:49:08,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:08,715 INFO L124 PetriNetUnfolderBase]: 223/897 cut-off events. [2024-11-22 17:49:08,715 INFO L125 PetriNetUnfolderBase]: For 186/192 co-relation queries the response was YES. [2024-11-22 17:49:08,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1768 conditions, 897 events. 223/897 cut-off events. For 186/192 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4733 event pairs, 82 based on Foata normal form. 5/843 useless extension candidates. Maximal degree in co-relation 1571. Up to 407 conditions per place. [2024-11-22 17:49:08,720 INFO L140 encePairwiseOnDemand]: 149/164 looper letters, 53 selfloop transitions, 39 changer transitions 5/245 dead transitions. [2024-11-22 17:49:08,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 245 transitions, 968 flow [2024-11-22 17:49:08,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:49:08,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:49:08,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 862 transitions. [2024-11-22 17:49:08,722 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8760162601626016 [2024-11-22 17:49:08,727 INFO L175 Difference]: Start difference. First operand has 208 places, 200 transitions, 654 flow. Second operand 6 states and 862 transitions. [2024-11-22 17:49:08,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 245 transitions, 968 flow [2024-11-22 17:49:08,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 245 transitions, 944 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-22 17:49:08,733 INFO L231 Difference]: Finished difference. Result has 212 places, 236 transitions, 918 flow [2024-11-22 17:49:08,733 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=918, PETRI_PLACES=212, PETRI_TRANSITIONS=236} [2024-11-22 17:49:08,734 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 49 predicate places. [2024-11-22 17:49:08,734 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 236 transitions, 918 flow [2024-11-22 17:49:08,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.66666666666666) internal successors, (802), 6 states have internal predecessors, (802), 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 17:49:08,735 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:08,735 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:49:08,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 17:49:08,735 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:08,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:08,736 INFO L85 PathProgramCache]: Analyzing trace with hash 949760636, now seen corresponding path program 1 times [2024-11-22 17:49:08,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:08,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133022283] [2024-11-22 17:49:08,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:49:08,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:49:08,988 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:49:08,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:08,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133022283] [2024-11-22 17:49:08,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133022283] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:49:08,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646778202] [2024-11-22 17:49:08,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:49:08,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:49:08,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:49:08,991 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:49:08,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 17:49:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:49:09,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 17:49:09,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:49:09,155 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:49:09,155 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:49:09,326 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:49:09,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646778202] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:49:09,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:49:09,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-22 17:49:09,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796795141] [2024-11-22 17:49:09,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:49:09,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-22 17:49:09,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:09,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-22 17:49:09,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-22 17:49:09,355 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 164 [2024-11-22 17:49:09,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 236 transitions, 918 flow. Second operand has 23 states, 23 states have (on average 149.08695652173913) internal successors, (3429), 23 states have internal predecessors, (3429), 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 17:49:09,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:09,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 164 [2024-11-22 17:49:09,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:09,704 INFO L124 PetriNetUnfolderBase]: 123/670 cut-off events. [2024-11-22 17:49:09,704 INFO L125 PetriNetUnfolderBase]: For 316/321 co-relation queries the response was YES. [2024-11-22 17:49:09,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1414 conditions, 670 events. 123/670 cut-off events. For 316/321 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2915 event pairs, 15 based on Foata normal form. 3/645 useless extension candidates. Maximal degree in co-relation 1138. Up to 118 conditions per place. [2024-11-22 17:49:09,708 INFO L140 encePairwiseOnDemand]: 158/164 looper letters, 21 selfloop transitions, 30 changer transitions 0/253 dead transitions. [2024-11-22 17:49:09,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 253 transitions, 1142 flow [2024-11-22 17:49:09,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-22 17:49:09,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-22 17:49:09,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4464 transitions. [2024-11-22 17:49:09,716 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9073170731707317 [2024-11-22 17:49:09,716 INFO L175 Difference]: Start difference. First operand has 212 places, 236 transitions, 918 flow. Second operand 30 states and 4464 transitions. [2024-11-22 17:49:09,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 253 transitions, 1142 flow [2024-11-22 17:49:09,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 253 transitions, 1110 flow, removed 16 selfloop flow, removed 0 redundant places. [2024-11-22 17:49:09,722 INFO L231 Difference]: Finished difference. Result has 244 places, 246 transitions, 1038 flow [2024-11-22 17:49:09,723 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1038, PETRI_PLACES=244, PETRI_TRANSITIONS=246} [2024-11-22 17:49:09,723 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 81 predicate places. [2024-11-22 17:49:09,723 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 246 transitions, 1038 flow [2024-11-22 17:49:09,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 149.08695652173913) internal successors, (3429), 23 states have internal predecessors, (3429), 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 17:49:09,725 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:09,725 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:49:09,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 17:49:09,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:49:09,930 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:09,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:09,930 INFO L85 PathProgramCache]: Analyzing trace with hash -350299956, now seen corresponding path program 2 times [2024-11-22 17:49:09,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:09,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804477422] [2024-11-22 17:49:09,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:49:09,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:09,947 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:49:09,948 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:49:10,167 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-22 17:49:10,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:10,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804477422] [2024-11-22 17:49:10,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804477422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:10,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:10,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:49:10,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975053786] [2024-11-22 17:49:10,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:10,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:49:10,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:10,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:49:10,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:49:10,258 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 164 [2024-11-22 17:49:10,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 246 transitions, 1038 flow. Second operand has 6 states, 6 states have (on average 141.33333333333334) internal successors, (848), 6 states have internal predecessors, (848), 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 17:49:10,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:10,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 164 [2024-11-22 17:49:10,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:10,414 INFO L124 PetriNetUnfolderBase]: 212/934 cut-off events. [2024-11-22 17:49:10,414 INFO L125 PetriNetUnfolderBase]: For 573/624 co-relation queries the response was YES. [2024-11-22 17:49:10,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2194 conditions, 934 events. 212/934 cut-off events. For 573/624 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4969 event pairs, 40 based on Foata normal form. 3/919 useless extension candidates. Maximal degree in co-relation 1917. Up to 338 conditions per place. [2024-11-22 17:49:10,419 INFO L140 encePairwiseOnDemand]: 153/164 looper letters, 72 selfloop transitions, 40 changer transitions 0/285 dead transitions. [2024-11-22 17:49:10,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 285 transitions, 1446 flow [2024-11-22 17:49:10,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:49:10,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:49:10,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 891 transitions. [2024-11-22 17:49:10,421 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9054878048780488 [2024-11-22 17:49:10,421 INFO L175 Difference]: Start difference. First operand has 244 places, 246 transitions, 1038 flow. Second operand 6 states and 891 transitions. [2024-11-22 17:49:10,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 285 transitions, 1446 flow [2024-11-22 17:49:10,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 285 transitions, 1400 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-22 17:49:10,428 INFO L231 Difference]: Finished difference. Result has 236 places, 277 transitions, 1360 flow [2024-11-22 17:49:10,429 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=992, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1360, PETRI_PLACES=236, PETRI_TRANSITIONS=277} [2024-11-22 17:49:10,429 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 73 predicate places. [2024-11-22 17:49:10,429 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 277 transitions, 1360 flow [2024-11-22 17:49:10,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 141.33333333333334) internal successors, (848), 6 states have internal predecessors, (848), 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 17:49:10,430 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:10,430 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:49:10,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 17:49:10,431 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:10,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:10,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1240008017, now seen corresponding path program 1 times [2024-11-22 17:49:10,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:10,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948098959] [2024-11-22 17:49:10,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:49:10,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:49:10,725 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-22 17:49:10,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:10,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948098959] [2024-11-22 17:49:10,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948098959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:10,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:10,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:49:10,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057855084] [2024-11-22 17:49:10,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:10,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:49:10,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:10,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:49:10,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:49:10,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 164 [2024-11-22 17:49:10,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 277 transitions, 1360 flow. Second operand has 6 states, 6 states have (on average 136.33333333333334) internal successors, (818), 6 states have internal predecessors, (818), 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 17:49:10,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:10,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 164 [2024-11-22 17:49:10,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:11,022 INFO L124 PetriNetUnfolderBase]: 361/1334 cut-off events. [2024-11-22 17:49:11,023 INFO L125 PetriNetUnfolderBase]: For 1451/1495 co-relation queries the response was YES. [2024-11-22 17:49:11,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3673 conditions, 1334 events. 361/1334 cut-off events. For 1451/1495 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 7942 event pairs, 87 based on Foata normal form. 2/1300 useless extension candidates. Maximal degree in co-relation 3413. Up to 610 conditions per place. [2024-11-22 17:49:11,031 INFO L140 encePairwiseOnDemand]: 149/164 looper letters, 100 selfloop transitions, 64 changer transitions 10/338 dead transitions. [2024-11-22 17:49:11,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 338 transitions, 2048 flow [2024-11-22 17:49:11,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:49:11,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:49:11,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 877 transitions. [2024-11-22 17:49:11,033 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.891260162601626 [2024-11-22 17:49:11,033 INFO L175 Difference]: Start difference. First operand has 236 places, 277 transitions, 1360 flow. Second operand 6 states and 877 transitions. [2024-11-22 17:49:11,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 338 transitions, 2048 flow [2024-11-22 17:49:11,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 338 transitions, 2030 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-22 17:49:11,046 INFO L231 Difference]: Finished difference. Result has 246 places, 324 transitions, 1928 flow [2024-11-22 17:49:11,047 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=1342, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1928, PETRI_PLACES=246, PETRI_TRANSITIONS=324} [2024-11-22 17:49:11,048 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 83 predicate places. [2024-11-22 17:49:11,049 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 324 transitions, 1928 flow [2024-11-22 17:49:11,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.33333333333334) internal successors, (818), 6 states have internal predecessors, (818), 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 17:49:11,049 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:11,050 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:49:11,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 17:49:11,050 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:11,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:11,050 INFO L85 PathProgramCache]: Analyzing trace with hash -293257231, now seen corresponding path program 1 times [2024-11-22 17:49:11,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:11,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9748542] [2024-11-22 17:49:11,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:49:11,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:49:17,687 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-22 17:49:17,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:17,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9748542] [2024-11-22 17:49:17,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9748542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:17,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:17,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 17:49:17,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173055588] [2024-11-22 17:49:17,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:17,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 17:49:17,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:17,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 17:49:17,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-22 17:49:19,860 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 164 [2024-11-22 17:49:19,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 324 transitions, 1928 flow. Second operand has 15 states, 15 states have (on average 124.73333333333333) internal successors, (1871), 15 states have internal predecessors, (1871), 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 17:49:19,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:19,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 164 [2024-11-22 17:49:19,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:20,928 INFO L124 PetriNetUnfolderBase]: 461/1620 cut-off events. [2024-11-22 17:49:20,928 INFO L125 PetriNetUnfolderBase]: For 3067/3191 co-relation queries the response was YES. [2024-11-22 17:49:20,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5227 conditions, 1620 events. 461/1620 cut-off events. For 3067/3191 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 10150 event pairs, 19 based on Foata normal form. 50/1654 useless extension candidates. Maximal degree in co-relation 4950. Up to 562 conditions per place. [2024-11-22 17:49:20,939 INFO L140 encePairwiseOnDemand]: 137/164 looper letters, 190 selfloop transitions, 84 changer transitions 47/474 dead transitions. [2024-11-22 17:49:20,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 474 transitions, 3660 flow [2024-11-22 17:49:20,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-22 17:49:20,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-22 17:49:20,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2352 transitions. [2024-11-22 17:49:20,943 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7967479674796748 [2024-11-22 17:49:20,943 INFO L175 Difference]: Start difference. First operand has 246 places, 324 transitions, 1928 flow. Second operand 18 states and 2352 transitions. [2024-11-22 17:49:20,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 474 transitions, 3660 flow [2024-11-22 17:49:20,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 474 transitions, 3574 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-11-22 17:49:20,963 INFO L231 Difference]: Finished difference. Result has 271 places, 361 transitions, 2488 flow [2024-11-22 17:49:20,963 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=1854, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2488, PETRI_PLACES=271, PETRI_TRANSITIONS=361} [2024-11-22 17:49:20,964 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 108 predicate places. [2024-11-22 17:49:20,964 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 361 transitions, 2488 flow [2024-11-22 17:49:20,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 124.73333333333333) internal successors, (1871), 15 states have internal predecessors, (1871), 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 17:49:20,965 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:20,965 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:49:20,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 17:49:20,965 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:20,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:20,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1594603741, now seen corresponding path program 2 times [2024-11-22 17:49:20,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:20,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897771196] [2024-11-22 17:49:20,966 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:49:20,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:20,983 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:49:20,983 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:49:21,557 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-22 17:49:21,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:21,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897771196] [2024-11-22 17:49:21,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897771196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:21,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:21,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 17:49:21,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987094342] [2024-11-22 17:49:21,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:21,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 17:49:21,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:21,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 17:49:21,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 17:49:22,348 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2024-11-22 17:49:22,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 361 transitions, 2488 flow. Second operand has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 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 17:49:22,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:22,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2024-11-22 17:49:22,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:22,812 INFO L124 PetriNetUnfolderBase]: 456/1589 cut-off events. [2024-11-22 17:49:22,812 INFO L125 PetriNetUnfolderBase]: For 4566/4754 co-relation queries the response was YES. [2024-11-22 17:49:22,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5992 conditions, 1589 events. 456/1589 cut-off events. For 4566/4754 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 9866 event pairs, 88 based on Foata normal form. 105/1677 useless extension candidates. Maximal degree in co-relation 5705. Up to 662 conditions per place. [2024-11-22 17:49:22,824 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 169 selfloop transitions, 83 changer transitions 20/427 dead transitions. [2024-11-22 17:49:22,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 427 transitions, 3521 flow [2024-11-22 17:49:22,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 17:49:22,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 17:49:22,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1261 transitions. [2024-11-22 17:49:22,828 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8543360433604336 [2024-11-22 17:49:22,828 INFO L175 Difference]: Start difference. First operand has 271 places, 361 transitions, 2488 flow. Second operand 9 states and 1261 transitions. [2024-11-22 17:49:22,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 427 transitions, 3521 flow [2024-11-22 17:49:22,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 427 transitions, 3481 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-11-22 17:49:22,856 INFO L231 Difference]: Finished difference. Result has 274 places, 365 transitions, 2692 flow [2024-11-22 17:49:22,857 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=2453, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2692, PETRI_PLACES=274, PETRI_TRANSITIONS=365} [2024-11-22 17:49:22,857 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 111 predicate places. [2024-11-22 17:49:22,858 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 365 transitions, 2692 flow [2024-11-22 17:49:22,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 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 17:49:22,858 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:22,858 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:49:22,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 17:49:22,859 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:22,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:22,859 INFO L85 PathProgramCache]: Analyzing trace with hash 2071078879, now seen corresponding path program 3 times [2024-11-22 17:49:22,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:22,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157811914] [2024-11-22 17:49:22,859 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 17:49:22,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:22,876 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 17:49:22,877 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:49:23,529 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-22 17:49:23,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:23,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157811914] [2024-11-22 17:49:23,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157811914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:23,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:23,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 17:49:23,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588123857] [2024-11-22 17:49:23,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:23,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 17:49:23,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:23,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 17:49:23,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-22 17:49:24,347 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 164 [2024-11-22 17:49:24,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 365 transitions, 2692 flow. Second operand has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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 17:49:24,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:24,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 164 [2024-11-22 17:49:24,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:25,059 INFO L124 PetriNetUnfolderBase]: 780/2497 cut-off events. [2024-11-22 17:49:25,059 INFO L125 PetriNetUnfolderBase]: For 9716/9932 co-relation queries the response was YES. [2024-11-22 17:49:25,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10447 conditions, 2497 events. 780/2497 cut-off events. For 9716/9932 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 18217 event pairs, 58 based on Foata normal form. 79/2543 useless extension candidates. Maximal degree in co-relation 10157. Up to 632 conditions per place. [2024-11-22 17:49:25,084 INFO L140 encePairwiseOnDemand]: 146/164 looper letters, 348 selfloop transitions, 95 changer transitions 12/614 dead transitions. [2024-11-22 17:49:25,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 614 transitions, 6195 flow [2024-11-22 17:49:25,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 17:49:25,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-22 17:49:25,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1542 transitions. [2024-11-22 17:49:25,089 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8547671840354767 [2024-11-22 17:49:25,089 INFO L175 Difference]: Start difference. First operand has 274 places, 365 transitions, 2692 flow. Second operand 11 states and 1542 transitions. [2024-11-22 17:49:25,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 614 transitions, 6195 flow [2024-11-22 17:49:25,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 614 transitions, 6045 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-22 17:49:25,139 INFO L231 Difference]: Finished difference. Result has 287 places, 445 transitions, 4100 flow [2024-11-22 17:49:25,140 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=2622, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4100, PETRI_PLACES=287, PETRI_TRANSITIONS=445} [2024-11-22 17:49:25,141 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 124 predicate places. [2024-11-22 17:49:25,141 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 445 transitions, 4100 flow [2024-11-22 17:49:25,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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 17:49:25,141 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:25,142 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:49:25,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 17:49:25,142 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:25,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:25,142 INFO L85 PathProgramCache]: Analyzing trace with hash 452928057, now seen corresponding path program 4 times [2024-11-22 17:49:25,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:25,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435024203] [2024-11-22 17:49:25,143 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 17:49:25,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:25,191 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 17:49:25,191 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:49:26,157 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-22 17:49:26,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:26,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435024203] [2024-11-22 17:49:26,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435024203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:26,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:26,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:49:26,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132569633] [2024-11-22 17:49:26,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:26,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:49:26,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:26,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:49:26,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:49:27,513 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 164 [2024-11-22 17:49:27,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 445 transitions, 4100 flow. Second operand has 13 states, 13 states have (on average 123.15384615384616) internal successors, (1601), 13 states have internal predecessors, (1601), 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 17:49:27,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:27,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 164 [2024-11-22 17:49:27,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:28,608 INFO L124 PetriNetUnfolderBase]: 1242/3829 cut-off events. [2024-11-22 17:49:28,608 INFO L125 PetriNetUnfolderBase]: For 19153/19461 co-relation queries the response was YES. [2024-11-22 17:49:28,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16850 conditions, 3829 events. 1242/3829 cut-off events. For 19153/19461 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 31035 event pairs, 173 based on Foata normal form. 91/3876 useless extension candidates. Maximal degree in co-relation 16553. Up to 1434 conditions per place. [2024-11-22 17:49:28,645 INFO L140 encePairwiseOnDemand]: 140/164 looper letters, 454 selfloop transitions, 128 changer transitions 17/750 dead transitions. [2024-11-22 17:49:28,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 750 transitions, 8561 flow [2024-11-22 17:49:28,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-22 17:49:28,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-22 17:49:28,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2757 transitions. [2024-11-22 17:49:28,648 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8005226480836237 [2024-11-22 17:49:28,648 INFO L175 Difference]: Start difference. First operand has 287 places, 445 transitions, 4100 flow. Second operand 21 states and 2757 transitions. [2024-11-22 17:49:28,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 750 transitions, 8561 flow [2024-11-22 17:49:28,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 750 transitions, 8499 flow, removed 31 selfloop flow, removed 0 redundant places. [2024-11-22 17:49:28,736 INFO L231 Difference]: Finished difference. Result has 319 places, 532 transitions, 5869 flow [2024-11-22 17:49:28,736 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=4052, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=5869, PETRI_PLACES=319, PETRI_TRANSITIONS=532} [2024-11-22 17:49:28,736 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 156 predicate places. [2024-11-22 17:49:28,736 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 532 transitions, 5869 flow [2024-11-22 17:49:28,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 123.15384615384616) internal successors, (1601), 13 states have internal predecessors, (1601), 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 17:49:28,737 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:28,737 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:49:28,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 17:49:28,737 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:28,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:28,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1672050417, now seen corresponding path program 5 times [2024-11-22 17:49:28,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:28,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105490076] [2024-11-22 17:49:28,738 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 17:49:28,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:28,788 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-22 17:49:28,789 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:49:29,578 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-22 17:49:29,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:29,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105490076] [2024-11-22 17:49:29,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105490076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:29,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:29,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:49:29,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488070971] [2024-11-22 17:49:29,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:29,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:49:29,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:29,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:49:29,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:49:30,743 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 164 [2024-11-22 17:49:30,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 532 transitions, 5869 flow. Second operand has 13 states, 13 states have (on average 125.0) internal successors, (1625), 13 states have internal predecessors, (1625), 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 17:49:30,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:30,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 164 [2024-11-22 17:49:30,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:31,806 INFO L124 PetriNetUnfolderBase]: 1127/3696 cut-off events. [2024-11-22 17:49:31,806 INFO L125 PetriNetUnfolderBase]: For 23533/23810 co-relation queries the response was YES. [2024-11-22 17:49:31,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17404 conditions, 3696 events. 1127/3696 cut-off events. For 23533/23810 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 30852 event pairs, 93 based on Foata normal form. 84/3741 useless extension candidates. Maximal degree in co-relation 17095. Up to 1093 conditions per place. [2024-11-22 17:49:31,834 INFO L140 encePairwiseOnDemand]: 140/164 looper letters, 353 selfloop transitions, 194 changer transitions 18/723 dead transitions. [2024-11-22 17:49:31,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 723 transitions, 8905 flow [2024-11-22 17:49:31,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 17:49:31,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-22 17:49:31,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1993 transitions. [2024-11-22 17:49:31,836 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8101626016260163 [2024-11-22 17:49:31,836 INFO L175 Difference]: Start difference. First operand has 319 places, 532 transitions, 5869 flow. Second operand 15 states and 1993 transitions. [2024-11-22 17:49:31,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 723 transitions, 8905 flow [2024-11-22 17:49:31,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 723 transitions, 8708 flow, removed 89 selfloop flow, removed 6 redundant places. [2024-11-22 17:49:31,956 INFO L231 Difference]: Finished difference. Result has 332 places, 562 transitions, 6866 flow [2024-11-22 17:49:31,956 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=5676, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=164, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6866, PETRI_PLACES=332, PETRI_TRANSITIONS=562} [2024-11-22 17:49:31,956 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 169 predicate places. [2024-11-22 17:49:31,956 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 562 transitions, 6866 flow [2024-11-22 17:49:31,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 125.0) internal successors, (1625), 13 states have internal predecessors, (1625), 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 17:49:31,957 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:31,957 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:49:31,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 17:49:31,957 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:31,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:31,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1648308683, now seen corresponding path program 6 times [2024-11-22 17:49:31,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:31,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912477552] [2024-11-22 17:49:31,958 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 17:49:31,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:31,973 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-22 17:49:31,973 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:49:32,493 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-22 17:49:32,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:32,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912477552] [2024-11-22 17:49:32,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912477552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:32,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:32,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 17:49:32,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196316415] [2024-11-22 17:49:32,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:32,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 17:49:32,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:32,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 17:49:32,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-22 17:49:33,199 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2024-11-22 17:49:33,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 562 transitions, 6866 flow. Second operand has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 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 17:49:33,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:33,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2024-11-22 17:49:33,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:34,225 INFO L124 PetriNetUnfolderBase]: 1242/3849 cut-off events. [2024-11-22 17:49:34,225 INFO L125 PetriNetUnfolderBase]: For 29881/30193 co-relation queries the response was YES. [2024-11-22 17:49:34,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19370 conditions, 3849 events. 1242/3849 cut-off events. For 29881/30193 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 31920 event pairs, 169 based on Foata normal form. 185/3986 useless extension candidates. Maximal degree in co-relation 19055. Up to 1768 conditions per place. [2024-11-22 17:49:34,255 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 234 selfloop transitions, 216 changer transitions 25/635 dead transitions. [2024-11-22 17:49:34,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 635 transitions, 8632 flow [2024-11-22 17:49:34,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 17:49:34,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-22 17:49:34,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1651 transitions. [2024-11-22 17:49:34,258 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8389227642276422 [2024-11-22 17:49:34,258 INFO L175 Difference]: Start difference. First operand has 332 places, 562 transitions, 6866 flow. Second operand 12 states and 1651 transitions. [2024-11-22 17:49:34,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 635 transitions, 8632 flow [2024-11-22 17:49:34,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 635 transitions, 8415 flow, removed 99 selfloop flow, removed 6 redundant places. [2024-11-22 17:49:34,416 INFO L231 Difference]: Finished difference. Result has 342 places, 570 transitions, 7303 flow [2024-11-22 17:49:34,417 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=6666, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=204, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7303, PETRI_PLACES=342, PETRI_TRANSITIONS=570} [2024-11-22 17:49:34,417 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 179 predicate places. [2024-11-22 17:49:34,417 INFO L471 AbstractCegarLoop]: Abstraction has has 342 places, 570 transitions, 7303 flow [2024-11-22 17:49:34,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 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 17:49:34,418 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:34,418 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:49:34,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 17:49:34,418 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:34,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:34,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1122412377, now seen corresponding path program 7 times [2024-11-22 17:49:34,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:34,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363898305] [2024-11-22 17:49:34,419 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-22 17:49:34,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:34,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:49:44,194 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-22 17:49:44,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:44,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363898305] [2024-11-22 17:49:44,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363898305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:44,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:44,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 17:49:44,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719203142] [2024-11-22 17:49:44,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:44,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 17:49:44,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:44,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 17:49:44,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2024-11-22 17:49:45,893 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 164 [2024-11-22 17:49:45,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 570 transitions, 7303 flow. Second operand has 15 states, 15 states have (on average 124.73333333333333) internal successors, (1871), 15 states have internal predecessors, (1871), 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 17:49:45,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:45,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 164 [2024-11-22 17:49:45,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:47,407 INFO L124 PetriNetUnfolderBase]: 1123/3725 cut-off events. [2024-11-22 17:49:47,407 INFO L125 PetriNetUnfolderBase]: For 30331/30617 co-relation queries the response was YES. [2024-11-22 17:49:47,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18784 conditions, 3725 events. 1123/3725 cut-off events. For 30331/30617 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 31284 event pairs, 109 based on Foata normal form. 119/3797 useless extension candidates. Maximal degree in co-relation 18526. Up to 1161 conditions per place. [2024-11-22 17:49:47,440 INFO L140 encePairwiseOnDemand]: 139/164 looper letters, 454 selfloop transitions, 128 changer transitions 25/765 dead transitions. [2024-11-22 17:49:47,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 765 transitions, 10472 flow [2024-11-22 17:49:47,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-22 17:49:47,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-22 17:49:47,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2246 transitions. [2024-11-22 17:49:47,446 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8055954088952654 [2024-11-22 17:49:47,446 INFO L175 Difference]: Start difference. First operand has 342 places, 570 transitions, 7303 flow. Second operand 17 states and 2246 transitions. [2024-11-22 17:49:47,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 765 transitions, 10472 flow [2024-11-22 17:49:47,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 765 transitions, 10022 flow, removed 31 selfloop flow, removed 5 redundant places. [2024-11-22 17:49:47,610 INFO L231 Difference]: Finished difference. Result has 358 places, 592 transitions, 7604 flow [2024-11-22 17:49:47,611 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=6909, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=570, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=7604, PETRI_PLACES=358, PETRI_TRANSITIONS=592} [2024-11-22 17:49:47,611 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 195 predicate places. [2024-11-22 17:49:47,612 INFO L471 AbstractCegarLoop]: Abstraction has has 358 places, 592 transitions, 7604 flow [2024-11-22 17:49:47,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 124.73333333333333) internal successors, (1871), 15 states have internal predecessors, (1871), 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 17:49:47,612 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:47,612 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:49:47,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 17:49:47,613 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:47,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:47,613 INFO L85 PathProgramCache]: Analyzing trace with hash -318626845, now seen corresponding path program 8 times [2024-11-22 17:49:47,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:47,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812935738] [2024-11-22 17:49:47,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:49:47,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:47,633 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:49:47,633 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:49:48,207 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-22 17:49:48,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:48,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812935738] [2024-11-22 17:49:48,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812935738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:48,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:48,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 17:49:48,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397936127] [2024-11-22 17:49:48,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:48,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 17:49:48,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:48,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 17:49:48,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-22 17:49:49,065 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2024-11-22 17:49:49,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 592 transitions, 7604 flow. Second operand has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 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 17:49:49,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:49,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2024-11-22 17:49:49,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:49:50,121 INFO L124 PetriNetUnfolderBase]: 1240/3919 cut-off events. [2024-11-22 17:49:50,121 INFO L125 PetriNetUnfolderBase]: For 34633/34936 co-relation queries the response was YES. [2024-11-22 17:49:50,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20224 conditions, 3919 events. 1240/3919 cut-off events. For 34633/34936 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 32697 event pairs, 172 based on Foata normal form. 140/4017 useless extension candidates. Maximal degree in co-relation 20063. Up to 1771 conditions per place. [2024-11-22 17:49:50,160 INFO L140 encePairwiseOnDemand]: 144/164 looper letters, 265 selfloop transitions, 219 changer transitions 19/663 dead transitions. [2024-11-22 17:49:50,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 663 transitions, 9476 flow [2024-11-22 17:49:50,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-22 17:49:50,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-22 17:49:50,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1771 transitions. [2024-11-22 17:49:50,162 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8306754221388368 [2024-11-22 17:49:50,162 INFO L175 Difference]: Start difference. First operand has 358 places, 592 transitions, 7604 flow. Second operand 13 states and 1771 transitions. [2024-11-22 17:49:50,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 663 transitions, 9476 flow [2024-11-22 17:49:50,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 663 transitions, 9320 flow, removed 31 selfloop flow, removed 9 redundant places. [2024-11-22 17:49:50,355 INFO L231 Difference]: Finished difference. Result has 368 places, 612 transitions, 8382 flow [2024-11-22 17:49:50,355 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=7458, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=592, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=202, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8382, PETRI_PLACES=368, PETRI_TRANSITIONS=612} [2024-11-22 17:49:50,355 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 205 predicate places. [2024-11-22 17:49:50,356 INFO L471 AbstractCegarLoop]: Abstraction has has 368 places, 612 transitions, 8382 flow [2024-11-22 17:49:50,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 129.0) internal successors, (1290), 10 states have internal predecessors, (1290), 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 17:49:50,356 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:49:50,356 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:49:50,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 17:49:50,356 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:49:50,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:49:50,357 INFO L85 PathProgramCache]: Analyzing trace with hash 381793763, now seen corresponding path program 9 times [2024-11-22 17:49:50,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:49:50,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026248234] [2024-11-22 17:49:50,357 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 17:49:50,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:49:50,380 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 17:49:50,380 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:49:54,975 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-22 17:49:54,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:49:54,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026248234] [2024-11-22 17:49:54,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026248234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:49:54,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:49:54,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-22 17:49:54,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430198980] [2024-11-22 17:49:54,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:49:54,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 17:49:54,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:49:54,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 17:49:54,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-11-22 17:49:58,443 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 164 [2024-11-22 17:49:58,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 612 transitions, 8382 flow. Second operand has 16 states, 16 states have (on average 114.125) internal successors, (1826), 16 states have internal predecessors, (1826), 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 17:49:58,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:49:58,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 164 [2024-11-22 17:49:58,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:50:01,943 INFO L124 PetriNetUnfolderBase]: 1854/5497 cut-off events. [2024-11-22 17:50:01,944 INFO L125 PetriNetUnfolderBase]: For 54938/55187 co-relation queries the response was YES. [2024-11-22 17:50:01,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29991 conditions, 5497 events. 1854/5497 cut-off events. For 54938/55187 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 47573 event pairs, 247 based on Foata normal form. 94/5536 useless extension candidates. Maximal degree in co-relation 29722. Up to 2309 conditions per place. [2024-11-22 17:50:01,995 INFO L140 encePairwiseOnDemand]: 133/164 looper letters, 641 selfloop transitions, 201 changer transitions 39/1022 dead transitions. [2024-11-22 17:50:01,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 1022 transitions, 15695 flow [2024-11-22 17:50:01,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-22 17:50:01,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-22 17:50:01,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3045 transitions. [2024-11-22 17:50:01,998 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7426829268292683 [2024-11-22 17:50:01,998 INFO L175 Difference]: Start difference. First operand has 368 places, 612 transitions, 8382 flow. Second operand 25 states and 3045 transitions. [2024-11-22 17:50:01,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 1022 transitions, 15695 flow [2024-11-22 17:50:02,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 1022 transitions, 15264 flow, removed 147 selfloop flow, removed 3 redundant places. [2024-11-22 17:50:02,282 INFO L231 Difference]: Finished difference. Result has 405 places, 754 transitions, 11742 flow [2024-11-22 17:50:02,283 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=8154, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=612, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=11742, PETRI_PLACES=405, PETRI_TRANSITIONS=754} [2024-11-22 17:50:02,283 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 242 predicate places. [2024-11-22 17:50:02,283 INFO L471 AbstractCegarLoop]: Abstraction has has 405 places, 754 transitions, 11742 flow [2024-11-22 17:50:02,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 114.125) internal successors, (1826), 16 states have internal predecessors, (1826), 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 17:50:02,284 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:50:02,284 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:50:02,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 17:50:02,284 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:50:02,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:50:02,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1773828357, now seen corresponding path program 10 times [2024-11-22 17:50:02,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:50:02,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599028486] [2024-11-22 17:50:02,284 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 17:50:02,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:50:02,307 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 17:50:02,307 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:50:02,989 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-22 17:50:02,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:50:02,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599028486] [2024-11-22 17:50:02,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599028486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:50:02,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:50:02,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 17:50:02,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754113363] [2024-11-22 17:50:02,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:50:02,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 17:50:02,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:50:02,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 17:50:02,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-22 17:50:04,332 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 164 [2024-11-22 17:50:04,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 754 transitions, 11742 flow. Second operand has 13 states, 13 states have (on average 123.15384615384616) internal successors, (1601), 13 states have internal predecessors, (1601), 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 17:50:04,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:50:04,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 164 [2024-11-22 17:50:04,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:50:05,889 INFO L124 PetriNetUnfolderBase]: 1807/5523 cut-off events. [2024-11-22 17:50:05,889 INFO L125 PetriNetUnfolderBase]: For 66290/66569 co-relation queries the response was YES. [2024-11-22 17:50:05,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31737 conditions, 5523 events. 1807/5523 cut-off events. For 66290/66569 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 48735 event pairs, 292 based on Foata normal form. 82/5534 useless extension candidates. Maximal degree in co-relation 31398. Up to 2920 conditions per place. [2024-11-22 17:50:05,942 INFO L140 encePairwiseOnDemand]: 142/164 looper letters, 633 selfloop transitions, 131 changer transitions 2/918 dead transitions. [2024-11-22 17:50:05,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 918 transitions, 15782 flow [2024-11-22 17:50:05,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-22 17:50:05,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-22 17:50:05,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2956 transitions. [2024-11-22 17:50:05,947 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7836691410392365 [2024-11-22 17:50:05,947 INFO L175 Difference]: Start difference. First operand has 405 places, 754 transitions, 11742 flow. Second operand 23 states and 2956 transitions. [2024-11-22 17:50:05,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 918 transitions, 15782 flow [2024-11-22 17:50:06,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 918 transitions, 15423 flow, removed 44 selfloop flow, removed 6 redundant places. [2024-11-22 17:50:06,312 INFO L231 Difference]: Finished difference. Result has 435 places, 797 transitions, 12531 flow [2024-11-22 17:50:06,313 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=11403, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=754, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=648, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=12531, PETRI_PLACES=435, PETRI_TRANSITIONS=797} [2024-11-22 17:50:06,313 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 272 predicate places. [2024-11-22 17:50:06,313 INFO L471 AbstractCegarLoop]: Abstraction has has 435 places, 797 transitions, 12531 flow [2024-11-22 17:50:06,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 123.15384615384616) internal successors, (1601), 13 states have internal predecessors, (1601), 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 17:50:06,314 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:50:06,314 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:50:06,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 17:50:06,314 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:50:06,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:50:06,314 INFO L85 PathProgramCache]: Analyzing trace with hash -625843023, now seen corresponding path program 11 times [2024-11-22 17:50:06,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:50:06,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91984614] [2024-11-22 17:50:06,314 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 17:50:06,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:50:06,353 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-22 17:50:06,354 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:50:10,484 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:50:10,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:50:10,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91984614] [2024-11-22 17:50:10,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91984614] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:50:10,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150855445] [2024-11-22 17:50:10,485 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 17:50:10,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:50:10,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:50:10,487 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:50:10,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 17:50:10,604 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-22 17:50:10,604 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:50:10,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-22 17:50:10,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:50:10,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2024-11-22 17:50:10,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-22 17:50:10,881 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-22 17:50:10,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-11-22 17:50:10,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-22 17:50:11,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-22 17:50:11,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-22 17:50:11,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 17:50:11,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 17:50:11,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 17:50:11,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 17:50:11,215 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 17:50:11,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 73 [2024-11-22 17:50:11,347 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-22 17:50:11,348 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:50:12,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2024-11-22 17:50:12,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2024-11-22 17:50:12,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2024-11-22 17:50:12,117 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-22 17:50:12,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150855445] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 17:50:12,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 17:50:12,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [34, 25] total 50 [2024-11-22 17:50:12,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50780447] [2024-11-22 17:50:12,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:50:12,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 17:50:12,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:50:12,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 17:50:12,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=2357, Unknown=0, NotChecked=0, Total=2550 [2024-11-22 17:50:14,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 164 [2024-11-22 17:50:14,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 797 transitions, 12531 flow. Second operand has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 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 17:50:14,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:50:14,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 164 [2024-11-22 17:50:14,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:50:17,455 INFO L124 PetriNetUnfolderBase]: 1963/6139 cut-off events. [2024-11-22 17:50:17,455 INFO L125 PetriNetUnfolderBase]: For 82828/83174 co-relation queries the response was YES. [2024-11-22 17:50:17,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36885 conditions, 6139 events. 1963/6139 cut-off events. For 82828/83174 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 55929 event pairs, 158 based on Foata normal form. 102/6174 useless extension candidates. Maximal degree in co-relation 36524. Up to 2432 conditions per place. [2024-11-22 17:50:17,532 INFO L140 encePairwiseOnDemand]: 139/164 looper letters, 664 selfloop transitions, 367 changer transitions 8/1201 dead transitions. [2024-11-22 17:50:17,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 1201 transitions, 21089 flow [2024-11-22 17:50:17,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-22 17:50:17,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-22 17:50:17,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2680 transitions. [2024-11-22 17:50:17,534 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8170731707317073 [2024-11-22 17:50:17,534 INFO L175 Difference]: Start difference. First operand has 435 places, 797 transitions, 12531 flow. Second operand 20 states and 2680 transitions. [2024-11-22 17:50:17,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 1201 transitions, 21089 flow [2024-11-22 17:50:18,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 1201 transitions, 20846 flow, removed 112 selfloop flow, removed 4 redundant places. [2024-11-22 17:50:18,334 INFO L231 Difference]: Finished difference. Result has 464 places, 966 transitions, 17011 flow [2024-11-22 17:50:18,335 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=12312, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=797, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=203, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=521, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=17011, PETRI_PLACES=464, PETRI_TRANSITIONS=966} [2024-11-22 17:50:18,335 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 301 predicate places. [2024-11-22 17:50:18,335 INFO L471 AbstractCegarLoop]: Abstraction has has 464 places, 966 transitions, 17011 flow [2024-11-22 17:50:18,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.2) internal successors, (1282), 10 states have internal predecessors, (1282), 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 17:50:18,336 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:50:18,336 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:50:18,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 17:50:18,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:50:18,536 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:50:18,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:50:18,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1622952203, now seen corresponding path program 12 times [2024-11-22 17:50:18,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:50:18,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924462562] [2024-11-22 17:50:18,537 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 17:50:18,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:50:18,558 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-22 17:50:18,559 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:50:22,681 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-22 17:50:22,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:50:22,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924462562] [2024-11-22 17:50:22,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924462562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:50:22,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:50:22,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-22 17:50:22,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160016972] [2024-11-22 17:50:22,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:50:22,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 17:50:22,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:50:22,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 17:50:22,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240