./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_02-funloop_norace.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 ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:49:12,310 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:49:12,378 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:49:12,381 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:49:12,382 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:49:12,417 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:49:12,417 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:49:12,418 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:49:12,418 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:49:12,419 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:49:12,420 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:49:12,420 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:49:12,421 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:49:12,421 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:49:12,421 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:49:12,422 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:49:12,423 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:49:12,423 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:49:12,423 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:49:12,423 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:49:12,423 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:49:12,424 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:49:12,424 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:49:12,424 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:49:12,424 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:49:12,425 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:49:12,425 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:49:12,425 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:49:12,425 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:49:12,425 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:49:12,426 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:49:12,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:49:12,426 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:49:12,426 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:49:12,426 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:49:12,427 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:49:12,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:49:12,427 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:49:12,427 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:49:12,427 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:49:12,428 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:49:12,428 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 [2024-11-19 05:49:12,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:49:12,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:49:12,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:49:12,655 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:49:12,655 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:49:12,656 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2024-11-19 05:49:13,874 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:49:14,097 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:49:14,097 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2024-11-19 05:49:14,112 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c0077eda/365c4ee8dd544571a27c65ffa0a81985/FLAG2b7891c2c [2024-11-19 05:49:14,125 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c0077eda/365c4ee8dd544571a27c65ffa0a81985 [2024-11-19 05:49:14,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:49:14,129 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:49:14,131 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:49:14,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:49:14,136 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:49:14,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:49:14" (1/1) ... [2024-11-19 05:49:14,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6feb7e1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:14, skipping insertion in model container [2024-11-19 05:49:14,138 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:49:14" (1/1) ... [2024-11-19 05:49:14,186 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:49:14,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:49:14,526 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:49:14,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:49:14,605 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:49:14,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:14 WrapperNode [2024-11-19 05:49:14,606 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:49:14,606 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:49:14,606 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:49:14,607 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:49:14,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:14" (1/1) ... [2024-11-19 05:49:14,625 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:14" (1/1) ... [2024-11-19 05:49:14,647 INFO L138 Inliner]: procedures = 263, calls = 70, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 156 [2024-11-19 05:49:14,648 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:49:14,648 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:49:14,648 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:49:14,649 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:49:14,655 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:14" (1/1) ... [2024-11-19 05:49:14,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:14" (1/1) ... [2024-11-19 05:49:14,658 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:14" (1/1) ... [2024-11-19 05:49:14,659 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:14" (1/1) ... [2024-11-19 05:49:14,666 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:14" (1/1) ... [2024-11-19 05:49:14,668 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:14" (1/1) ... [2024-11-19 05:49:14,669 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:14" (1/1) ... [2024-11-19 05:49:14,670 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:14" (1/1) ... [2024-11-19 05:49:14,672 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:49:14,673 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:49:14,676 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:49:14,676 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:49:14,676 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:14" (1/1) ... [2024-11-19 05:49:14,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:49:14,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:14,703 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) [2024-11-19 05:49:14,705 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 [2024-11-19 05:49:14,745 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 05:49:14,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 05:49:14,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 05:49:14,745 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 05:49:14,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:49:14,745 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 05:49:14,745 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 05:49:14,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:49:14,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:49:14,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:49:14,747 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:49:14,879 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:49:14,881 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:49:15,119 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:49:15,119 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:49:15,150 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:49:15,150 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-19 05:49:15,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:49:15 BoogieIcfgContainer [2024-11-19 05:49:15,151 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:49:15,152 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:49:15,152 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:49:15,155 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:49:15,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:49:14" (1/3) ... [2024-11-19 05:49:15,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8eceed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:49:15, skipping insertion in model container [2024-11-19 05:49:15,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:14" (2/3) ... [2024-11-19 05:49:15,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8eceed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:49:15, skipping insertion in model container [2024-11-19 05:49:15,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:49:15" (3/3) ... [2024-11-19 05:49:15,157 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_02-funloop_norace.i [2024-11-19 05:49:15,168 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:49:15,168 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-19 05:49:15,168 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:49:15,251 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 05:49:15,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 162 transitions, 328 flow [2024-11-19 05:49:15,357 INFO L124 PetriNetUnfolderBase]: 6/161 cut-off events. [2024-11-19 05:49:15,357 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:49:15,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 161 events. 6/161 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 126 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2024-11-19 05:49:15,366 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 162 transitions, 328 flow [2024-11-19 05:49:15,371 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 161 transitions, 325 flow [2024-11-19 05:49:15,378 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:49:15,382 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;@7fd250e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:49:15,383 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-19 05:49:15,404 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:49:15,404 INFO L124 PetriNetUnfolderBase]: 4/119 cut-off events. [2024-11-19 05:49:15,404 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:49:15,404 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:15,405 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] [2024-11-19 05:49:15,406 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:15,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:15,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1917384507, now seen corresponding path program 1 times [2024-11-19 05:49:15,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:15,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297155519] [2024-11-19 05:49:15,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:15,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:15,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:15,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:15,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297155519] [2024-11-19 05:49:15,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297155519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:15,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:15,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:49:15,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432232962] [2024-11-19 05:49:15,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:15,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:49:15,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:15,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:49:15,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:49:15,784 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 162 [2024-11-19 05:49:15,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 161 transitions, 325 flow. Second operand has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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) [2024-11-19 05:49:15,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:15,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 162 [2024-11-19 05:49:15,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:15,855 INFO L124 PetriNetUnfolderBase]: 13/246 cut-off events. [2024-11-19 05:49:15,858 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:49:15,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 246 events. 13/246 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 399 event pairs, 6 based on Foata normal form. 10/242 useless extension candidates. Maximal degree in co-relation 183. Up to 28 conditions per place. [2024-11-19 05:49:15,861 INFO L140 encePairwiseOnDemand]: 156/162 looper letters, 10 selfloop transitions, 2 changer transitions 0/159 dead transitions. [2024-11-19 05:49:15,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 159 transitions, 345 flow [2024-11-19 05:49:15,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:49:15,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:49:15,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 461 transitions. [2024-11-19 05:49:15,876 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.948559670781893 [2024-11-19 05:49:15,879 INFO L175 Difference]: Start difference. First operand has 159 places, 161 transitions, 325 flow. Second operand 3 states and 461 transitions. [2024-11-19 05:49:15,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 159 transitions, 345 flow [2024-11-19 05:49:15,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 159 transitions, 344 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:49:15,886 INFO L231 Difference]: Finished difference. Result has 161 places, 159 transitions, 330 flow [2024-11-19 05:49:15,890 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=161, PETRI_TRANSITIONS=159} [2024-11-19 05:49:15,892 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 2 predicate places. [2024-11-19 05:49:15,893 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 159 transitions, 330 flow [2024-11-19 05:49:15,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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) [2024-11-19 05:49:15,894 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:15,895 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] [2024-11-19 05:49:15,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:49:15,895 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:15,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:15,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1917798043, now seen corresponding path program 1 times [2024-11-19 05:49:15,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:15,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787647328] [2024-11-19 05:49:15,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:15,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:15,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:16,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:16,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:16,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787647328] [2024-11-19 05:49:16,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787647328] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:16,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941958280] [2024-11-19 05:49:16,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:16,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:16,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:16,069 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) [2024-11-19 05:49:16,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 05:49:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:16,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 05:49:16,163 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:16,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:16,220 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:49:16,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:16,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941958280] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:49:16,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:49:16,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-19 05:49:16,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319735867] [2024-11-19 05:49:16,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:49:16,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:49:16,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:16,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:49:16,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:49:16,303 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 162 [2024-11-19 05:49:16,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 159 transitions, 330 flow. Second operand has 10 states, 10 states have (on average 147.0) internal successors, (1470), 10 states have internal predecessors, (1470), 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) [2024-11-19 05:49:16,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:16,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 162 [2024-11-19 05:49:16,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:16,425 INFO L124 PetriNetUnfolderBase]: 13/253 cut-off events. [2024-11-19 05:49:16,426 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:49:16,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 253 events. 13/253 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 394 event pairs, 6 based on Foata normal form. 2/241 useless extension candidates. Maximal degree in co-relation 221. Up to 28 conditions per place. [2024-11-19 05:49:16,430 INFO L140 encePairwiseOnDemand]: 156/162 looper letters, 14 selfloop transitions, 9 changer transitions 0/167 dead transitions. [2024-11-19 05:49:16,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 167 transitions, 394 flow [2024-11-19 05:49:16,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:49:16,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:49:16,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1330 transitions. [2024-11-19 05:49:16,436 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9122085048010974 [2024-11-19 05:49:16,436 INFO L175 Difference]: Start difference. First operand has 161 places, 159 transitions, 330 flow. Second operand 9 states and 1330 transitions. [2024-11-19 05:49:16,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 167 transitions, 394 flow [2024-11-19 05:49:16,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 167 transitions, 392 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:49:16,440 INFO L231 Difference]: Finished difference. Result has 171 places, 165 transitions, 378 flow [2024-11-19 05:49:16,441 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=378, PETRI_PLACES=171, PETRI_TRANSITIONS=165} [2024-11-19 05:49:16,441 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 12 predicate places. [2024-11-19 05:49:16,442 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 165 transitions, 378 flow [2024-11-19 05:49:16,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 147.0) internal successors, (1470), 10 states have internal predecessors, (1470), 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) [2024-11-19 05:49:16,443 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:16,443 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] [2024-11-19 05:49:16,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 05:49:16,643 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 [2024-11-19 05:49:16,644 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:16,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:16,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1842992485, now seen corresponding path program 2 times [2024-11-19 05:49:16,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:16,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295530683] [2024-11-19 05:49:16,645 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:16,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:16,667 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:16,671 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:17,112 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 05:49:17,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:17,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295530683] [2024-11-19 05:49:17,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295530683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:17,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:17,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:49:17,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624511573] [2024-11-19 05:49:17,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:17,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:49:17,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:17,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:49:17,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:49:17,227 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 162 [2024-11-19 05:49:17,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 165 transitions, 378 flow. Second operand has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 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) [2024-11-19 05:49:17,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:17,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 162 [2024-11-19 05:49:17,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:17,396 INFO L124 PetriNetUnfolderBase]: 150/840 cut-off events. [2024-11-19 05:49:17,397 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-19 05:49:17,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1168 conditions, 840 events. 150/840 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4710 event pairs, 62 based on Foata normal form. 0/781 useless extension candidates. Maximal degree in co-relation 1057. Up to 240 conditions per place. [2024-11-19 05:49:17,404 INFO L140 encePairwiseOnDemand]: 151/162 looper letters, 30 selfloop transitions, 22 changer transitions 0/194 dead transitions. [2024-11-19 05:49:17,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 194 transitions, 540 flow [2024-11-19 05:49:17,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:49:17,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:49:17,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 869 transitions. [2024-11-19 05:49:17,409 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8940329218106996 [2024-11-19 05:49:17,409 INFO L175 Difference]: Start difference. First operand has 171 places, 165 transitions, 378 flow. Second operand 6 states and 869 transitions. [2024-11-19 05:49:17,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 194 transitions, 540 flow [2024-11-19 05:49:17,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 194 transitions, 534 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-19 05:49:17,413 INFO L231 Difference]: Finished difference. Result has 180 places, 186 transitions, 522 flow [2024-11-19 05:49:17,415 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=522, PETRI_PLACES=180, PETRI_TRANSITIONS=186} [2024-11-19 05:49:17,415 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 21 predicate places. [2024-11-19 05:49:17,415 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 186 transitions, 522 flow [2024-11-19 05:49:17,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 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) [2024-11-19 05:49:17,416 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:17,416 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] [2024-11-19 05:49:17,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 05:49:17,417 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:17,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:17,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1999671179, now seen corresponding path program 1 times [2024-11-19 05:49:17,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:17,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338174685] [2024-11-19 05:49:17,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:17,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:17,563 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:17,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:17,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338174685] [2024-11-19 05:49:17,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338174685] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:17,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855000805] [2024-11-19 05:49:17,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:17,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:17,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:17,566 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) [2024-11-19 05:49:17,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 05:49:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:17,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 05:49:17,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:17,675 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:17,675 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:49:17,750 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:17,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855000805] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:49:17,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:49:17,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-19 05:49:17,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415821808] [2024-11-19 05:49:17,752 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:49:17,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 05:49:17,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:17,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 05:49:17,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-19 05:49:17,773 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 162 [2024-11-19 05:49:17,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 186 transitions, 522 flow. Second operand has 18 states, 18 states have (on average 147.0) internal successors, (2646), 18 states have internal predecessors, (2646), 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) [2024-11-19 05:49:17,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:17,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 162 [2024-11-19 05:49:17,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:17,964 INFO L124 PetriNetUnfolderBase]: 61/586 cut-off events. [2024-11-19 05:49:17,964 INFO L125 PetriNetUnfolderBase]: For 50/53 co-relation queries the response was YES. [2024-11-19 05:49:17,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 881 conditions, 586 events. 61/586 cut-off events. For 50/53 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2302 event pairs, 11 based on Foata normal form. 4/556 useless extension candidates. Maximal degree in co-relation 693. Up to 63 conditions per place. [2024-11-19 05:49:17,967 INFO L140 encePairwiseOnDemand]: 156/162 looper letters, 18 selfloop transitions, 21 changer transitions 0/204 dead transitions. [2024-11-19 05:49:17,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 204 transitions, 688 flow [2024-11-19 05:49:17,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-19 05:49:17,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-19 05:49:17,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3088 transitions. [2024-11-19 05:49:17,972 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9077013521457966 [2024-11-19 05:49:17,972 INFO L175 Difference]: Start difference. First operand has 180 places, 186 transitions, 522 flow. Second operand 21 states and 3088 transitions. [2024-11-19 05:49:17,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 204 transitions, 688 flow [2024-11-19 05:49:17,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 204 transitions, 688 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:49:17,976 INFO L231 Difference]: Finished difference. Result has 205 places, 199 transitions, 652 flow [2024-11-19 05:49:17,977 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=652, PETRI_PLACES=205, PETRI_TRANSITIONS=199} [2024-11-19 05:49:17,977 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 46 predicate places. [2024-11-19 05:49:17,977 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 199 transitions, 652 flow [2024-11-19 05:49:17,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 147.0) internal successors, (2646), 18 states have internal predecessors, (2646), 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) [2024-11-19 05:49:17,979 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:17,979 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] [2024-11-19 05:49:17,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 05:49:18,179 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 [2024-11-19 05:49:18,180 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:18,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:18,181 INFO L85 PathProgramCache]: Analyzing trace with hash -104290187, now seen corresponding path program 2 times [2024-11-19 05:49:18,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:18,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059630069] [2024-11-19 05:49:18,181 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:18,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:18,196 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:18,196 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:18,467 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-19 05:49:18,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:18,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059630069] [2024-11-19 05:49:18,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059630069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:18,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:18,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:49:18,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583006532] [2024-11-19 05:49:18,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:18,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:49:18,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:18,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:49:18,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:49:18,584 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 162 [2024-11-19 05:49:18,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 199 transitions, 652 flow. Second operand has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 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) [2024-11-19 05:49:18,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:18,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 162 [2024-11-19 05:49:18,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:18,734 INFO L124 PetriNetUnfolderBase]: 206/1098 cut-off events. [2024-11-19 05:49:18,734 INFO L125 PetriNetUnfolderBase]: For 224/244 co-relation queries the response was YES. [2024-11-19 05:49:18,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1886 conditions, 1098 events. 206/1098 cut-off events. For 224/244 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6571 event pairs, 62 based on Foata normal form. 5/1041 useless extension candidates. Maximal degree in co-relation 1691. Up to 330 conditions per place. [2024-11-19 05:49:18,741 INFO L140 encePairwiseOnDemand]: 151/162 looper letters, 47 selfloop transitions, 30 changer transitions 0/236 dead transitions. [2024-11-19 05:49:18,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 236 transitions, 922 flow [2024-11-19 05:49:18,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:49:18,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:49:18,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 869 transitions. [2024-11-19 05:49:18,743 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8940329218106996 [2024-11-19 05:49:18,746 INFO L175 Difference]: Start difference. First operand has 205 places, 199 transitions, 652 flow. Second operand 6 states and 869 transitions. [2024-11-19 05:49:18,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 236 transitions, 922 flow [2024-11-19 05:49:18,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 236 transitions, 898 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-19 05:49:18,755 INFO L231 Difference]: Finished difference. Result has 209 places, 228 transitions, 878 flow [2024-11-19 05:49:18,755 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=878, PETRI_PLACES=209, PETRI_TRANSITIONS=228} [2024-11-19 05:49:18,756 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 50 predicate places. [2024-11-19 05:49:18,757 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 228 transitions, 878 flow [2024-11-19 05:49:18,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 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) [2024-11-19 05:49:18,757 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:18,758 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] [2024-11-19 05:49:18,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 05:49:18,758 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:18,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:18,758 INFO L85 PathProgramCache]: Analyzing trace with hash 170209770, now seen corresponding path program 1 times [2024-11-19 05:49:18,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:18,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544369517] [2024-11-19 05:49:18,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:18,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:19,038 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:19,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:19,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544369517] [2024-11-19 05:49:19,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544369517] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:19,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102501994] [2024-11-19 05:49:19,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:19,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:19,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:19,042 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) [2024-11-19 05:49:19,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 05:49:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:19,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 05:49:19,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:19,235 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:19,237 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:49:19,440 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:19,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102501994] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:49:19,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:49:19,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-19 05:49:19,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187926392] [2024-11-19 05:49:19,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:49:19,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 05:49:19,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:19,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 05:49:19,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-19 05:49:19,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 162 [2024-11-19 05:49:19,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 228 transitions, 878 flow. Second operand has 23 states, 23 states have (on average 147.08695652173913) internal successors, (3383), 23 states have internal predecessors, (3383), 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) [2024-11-19 05:49:19,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:19,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 162 [2024-11-19 05:49:19,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:19,800 INFO L124 PetriNetUnfolderBase]: 117/846 cut-off events. [2024-11-19 05:49:19,800 INFO L125 PetriNetUnfolderBase]: For 347/360 co-relation queries the response was YES. [2024-11-19 05:49:19,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1585 conditions, 846 events. 117/846 cut-off events. For 347/360 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4358 event pairs, 14 based on Foata normal form. 8/817 useless extension candidates. Maximal degree in co-relation 1309. Up to 84 conditions per place. [2024-11-19 05:49:19,805 INFO L140 encePairwiseOnDemand]: 156/162 looper letters, 21 selfloop transitions, 30 changer transitions 0/245 dead transitions. [2024-11-19 05:49:19,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 245 transitions, 1102 flow [2024-11-19 05:49:19,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-19 05:49:19,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-19 05:49:19,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4404 transitions. [2024-11-19 05:49:19,811 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9061728395061729 [2024-11-19 05:49:19,811 INFO L175 Difference]: Start difference. First operand has 209 places, 228 transitions, 878 flow. Second operand 30 states and 4404 transitions. [2024-11-19 05:49:19,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 245 transitions, 1102 flow [2024-11-19 05:49:19,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 245 transitions, 1102 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:49:19,817 INFO L231 Difference]: Finished difference. Result has 242 places, 238 transitions, 1030 flow [2024-11-19 05:49:19,818 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=878, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1030, PETRI_PLACES=242, PETRI_TRANSITIONS=238} [2024-11-19 05:49:19,818 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 83 predicate places. [2024-11-19 05:49:19,818 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 238 transitions, 1030 flow [2024-11-19 05:49:19,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 147.08695652173913) internal successors, (3383), 23 states have internal predecessors, (3383), 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) [2024-11-19 05:49:19,820 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:19,820 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] [2024-11-19 05:49:19,834 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 05:49:20,024 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 [2024-11-19 05:49:20,025 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:20,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:20,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1618788682, now seen corresponding path program 2 times [2024-11-19 05:49:20,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:20,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833862941] [2024-11-19 05:49:20,025 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:20,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:20,044 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:20,044 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:20,299 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:20,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:20,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833862941] [2024-11-19 05:49:20,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833862941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:20,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:20,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:49:20,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520952380] [2024-11-19 05:49:20,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:20,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:49:20,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:20,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:49:20,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:49:20,374 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 162 [2024-11-19 05:49:20,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 238 transitions, 1030 flow. Second operand has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 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) [2024-11-19 05:49:20,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:20,375 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 162 [2024-11-19 05:49:20,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:20,626 INFO L124 PetriNetUnfolderBase]: 422/1653 cut-off events. [2024-11-19 05:49:20,627 INFO L125 PetriNetUnfolderBase]: For 1012/1054 co-relation queries the response was YES. [2024-11-19 05:49:20,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3663 conditions, 1653 events. 422/1653 cut-off events. For 1012/1054 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 10530 event pairs, 107 based on Foata normal form. 12/1574 useless extension candidates. Maximal degree in co-relation 3386. Up to 718 conditions per place. [2024-11-19 05:49:20,635 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 76 selfloop transitions, 57 changer transitions 0/293 dead transitions. [2024-11-19 05:49:20,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 293 transitions, 1540 flow [2024-11-19 05:49:20,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:49:20,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:49:20,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 855 transitions. [2024-11-19 05:49:20,637 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8796296296296297 [2024-11-19 05:49:20,637 INFO L175 Difference]: Start difference. First operand has 242 places, 238 transitions, 1030 flow. Second operand 6 states and 855 transitions. [2024-11-19 05:49:20,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 293 transitions, 1540 flow [2024-11-19 05:49:20,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 293 transitions, 1494 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-19 05:49:20,645 INFO L231 Difference]: Finished difference. Result has 234 places, 285 transitions, 1482 flow [2024-11-19 05:49:20,645 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=984, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1482, PETRI_PLACES=234, PETRI_TRANSITIONS=285} [2024-11-19 05:49:20,646 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 75 predicate places. [2024-11-19 05:49:20,646 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 285 transitions, 1482 flow [2024-11-19 05:49:20,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 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) [2024-11-19 05:49:20,647 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:20,647 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] [2024-11-19 05:49:20,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 05:49:20,647 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:20,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:20,647 INFO L85 PathProgramCache]: Analyzing trace with hash 883185170, now seen corresponding path program 1 times [2024-11-19 05:49:20,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:20,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331000486] [2024-11-19 05:49:20,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:20,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:20,952 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:20,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:20,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331000486] [2024-11-19 05:49:20,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331000486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:20,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:20,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:49:20,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019765450] [2024-11-19 05:49:20,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:20,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:49:20,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:20,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:49:20,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:49:21,058 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 162 [2024-11-19 05:49:21,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 285 transitions, 1482 flow. Second operand has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 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) [2024-11-19 05:49:21,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:21,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 162 [2024-11-19 05:49:21,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:21,370 INFO L124 PetriNetUnfolderBase]: 542/2093 cut-off events. [2024-11-19 05:49:21,370 INFO L125 PetriNetUnfolderBase]: For 2419/2475 co-relation queries the response was YES. [2024-11-19 05:49:21,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5260 conditions, 2093 events. 542/2093 cut-off events. For 2419/2475 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 14543 event pairs, 113 based on Foata normal form. 13/2020 useless extension candidates. Maximal degree in co-relation 5000. Up to 894 conditions per place. [2024-11-19 05:49:21,383 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 113 selfloop transitions, 71 changer transitions 0/346 dead transitions. [2024-11-19 05:49:21,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 346 transitions, 2204 flow [2024-11-19 05:49:21,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:49:21,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:49:21,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 855 transitions. [2024-11-19 05:49:21,385 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8796296296296297 [2024-11-19 05:49:21,385 INFO L175 Difference]: Start difference. First operand has 234 places, 285 transitions, 1482 flow. Second operand 6 states and 855 transitions. [2024-11-19 05:49:21,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 346 transitions, 2204 flow [2024-11-19 05:49:21,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 346 transitions, 2140 flow, removed 32 selfloop flow, removed 0 redundant places. [2024-11-19 05:49:21,399 INFO L231 Difference]: Finished difference. Result has 244 places, 338 transitions, 2094 flow [2024-11-19 05:49:21,399 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=1424, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2094, PETRI_PLACES=244, PETRI_TRANSITIONS=338} [2024-11-19 05:49:21,400 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 85 predicate places. [2024-11-19 05:49:21,400 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 338 transitions, 2094 flow [2024-11-19 05:49:21,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 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) [2024-11-19 05:49:21,400 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:21,400 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] [2024-11-19 05:49:21,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 05:49:21,401 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:21,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:21,401 INFO L85 PathProgramCache]: Analyzing trace with hash -448336135, now seen corresponding path program 1 times [2024-11-19 05:49:21,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:21,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381628151] [2024-11-19 05:49:21,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:21,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:21,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:21,762 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:21,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:21,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381628151] [2024-11-19 05:49:21,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381628151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:21,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:21,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:49:21,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727733705] [2024-11-19 05:49:21,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:21,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 05:49:21,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:21,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 05:49:21,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:49:22,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-19 05:49:22,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 338 transitions, 2094 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:49:22,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:22,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-19 05:49:22,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:23,489 INFO L124 PetriNetUnfolderBase]: 1065/4194 cut-off events. [2024-11-19 05:49:23,489 INFO L125 PetriNetUnfolderBase]: For 5581/5708 co-relation queries the response was YES. [2024-11-19 05:49:23,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11555 conditions, 4194 events. 1065/4194 cut-off events. For 5581/5708 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 33504 event pairs, 161 based on Foata normal form. 43/4211 useless extension candidates. Maximal degree in co-relation 11278. Up to 580 conditions per place. [2024-11-19 05:49:23,518 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 65 selfloop transitions, 15 changer transitions 6/397 dead transitions. [2024-11-19 05:49:23,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 397 transitions, 2384 flow [2024-11-19 05:49:23,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:49:23,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:49:23,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1277 transitions. [2024-11-19 05:49:23,522 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8758573388203018 [2024-11-19 05:49:23,522 INFO L175 Difference]: Start difference. First operand has 244 places, 338 transitions, 2094 flow. Second operand 9 states and 1277 transitions. [2024-11-19 05:49:23,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 397 transitions, 2384 flow [2024-11-19 05:49:23,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 397 transitions, 2302 flow, removed 41 selfloop flow, removed 0 redundant places. [2024-11-19 05:49:23,559 INFO L231 Difference]: Finished difference. Result has 259 places, 353 transitions, 2130 flow [2024-11-19 05:49:23,560 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2012, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2130, PETRI_PLACES=259, PETRI_TRANSITIONS=353} [2024-11-19 05:49:23,560 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 100 predicate places. [2024-11-19 05:49:23,560 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 353 transitions, 2130 flow [2024-11-19 05:49:23,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:49:23,561 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:23,561 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] [2024-11-19 05:49:23,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 05:49:23,562 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:23,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:23,562 INFO L85 PathProgramCache]: Analyzing trace with hash -869332119, now seen corresponding path program 2 times [2024-11-19 05:49:23,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:23,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380457236] [2024-11-19 05:49:23,563 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:23,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:23,589 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:23,589 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:23,809 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:23,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:23,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380457236] [2024-11-19 05:49:23,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380457236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:23,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:23,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:49:23,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577522655] [2024-11-19 05:49:23,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:23,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 05:49:23,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:23,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 05:49:23,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:49:24,750 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-19 05:49:24,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 353 transitions, 2130 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:49:24,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:24,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-19 05:49:24,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:25,965 INFO L124 PetriNetUnfolderBase]: 2043/7589 cut-off events. [2024-11-19 05:49:25,966 INFO L125 PetriNetUnfolderBase]: For 10880/11144 co-relation queries the response was YES. [2024-11-19 05:49:25,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22326 conditions, 7589 events. 2043/7589 cut-off events. For 10880/11144 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 68042 event pairs, 270 based on Foata normal form. 87/7623 useless extension candidates. Maximal degree in co-relation 22041. Up to 1199 conditions per place. [2024-11-19 05:49:26,021 INFO L140 encePairwiseOnDemand]: 148/162 looper letters, 110 selfloop transitions, 20 changer transitions 3/444 dead transitions. [2024-11-19 05:49:26,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 444 transitions, 2796 flow [2024-11-19 05:49:26,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:49:26,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:49:26,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1276 transitions. [2024-11-19 05:49:26,024 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8751714677640604 [2024-11-19 05:49:26,024 INFO L175 Difference]: Start difference. First operand has 259 places, 353 transitions, 2130 flow. Second operand 9 states and 1276 transitions. [2024-11-19 05:49:26,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 444 transitions, 2796 flow [2024-11-19 05:49:26,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 444 transitions, 2796 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:49:26,077 INFO L231 Difference]: Finished difference. Result has 274 places, 370 transitions, 2310 flow [2024-11-19 05:49:26,077 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2130, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2310, PETRI_PLACES=274, PETRI_TRANSITIONS=370} [2024-11-19 05:49:26,078 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 115 predicate places. [2024-11-19 05:49:26,078 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 370 transitions, 2310 flow [2024-11-19 05:49:26,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:49:26,079 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:26,079 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] [2024-11-19 05:49:26,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 05:49:26,080 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:26,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:26,080 INFO L85 PathProgramCache]: Analyzing trace with hash 220238041, now seen corresponding path program 3 times [2024-11-19 05:49:26,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:26,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088135582] [2024-11-19 05:49:26,080 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 05:49:26,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:26,106 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 05:49:26,108 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:26,360 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:26,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:26,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088135582] [2024-11-19 05:49:26,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088135582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:26,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:26,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:49:26,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743739421] [2024-11-19 05:49:26,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:26,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 05:49:26,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:26,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 05:49:26,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:49:27,349 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-19 05:49:27,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 370 transitions, 2310 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:49:27,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:27,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-19 05:49:27,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:28,676 INFO L124 PetriNetUnfolderBase]: 2340/8669 cut-off events. [2024-11-19 05:49:28,676 INFO L125 PetriNetUnfolderBase]: For 14582/14973 co-relation queries the response was YES. [2024-11-19 05:49:28,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26804 conditions, 8669 events. 2340/8669 cut-off events. For 14582/14973 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 79272 event pairs, 290 based on Foata normal form. 92/8704 useless extension candidates. Maximal degree in co-relation 26511. Up to 1318 conditions per place. [2024-11-19 05:49:28,729 INFO L140 encePairwiseOnDemand]: 148/162 looper letters, 117 selfloop transitions, 22 changer transitions 4/454 dead transitions. [2024-11-19 05:49:28,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 454 transitions, 3094 flow [2024-11-19 05:49:28,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:49:28,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:49:28,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1281 transitions. [2024-11-19 05:49:28,732 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8786008230452675 [2024-11-19 05:49:28,732 INFO L175 Difference]: Start difference. First operand has 274 places, 370 transitions, 2310 flow. Second operand 9 states and 1281 transitions. [2024-11-19 05:49:28,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 454 transitions, 3094 flow [2024-11-19 05:49:28,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 454 transitions, 3056 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-11-19 05:49:28,799 INFO L231 Difference]: Finished difference. Result has 287 places, 382 transitions, 2479 flow [2024-11-19 05:49:28,800 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2296, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2479, PETRI_PLACES=287, PETRI_TRANSITIONS=382} [2024-11-19 05:49:28,800 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 128 predicate places. [2024-11-19 05:49:28,800 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 382 transitions, 2479 flow [2024-11-19 05:49:28,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:49:28,801 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:28,801 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] [2024-11-19 05:49:28,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 05:49:28,801 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:28,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:28,802 INFO L85 PathProgramCache]: Analyzing trace with hash -735355799, now seen corresponding path program 4 times [2024-11-19 05:49:28,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:28,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418495150] [2024-11-19 05:49:28,803 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 05:49:28,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:28,913 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 05:49:28,913 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:29,638 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:29,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:29,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418495150] [2024-11-19 05:49:29,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418495150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:29,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:29,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 05:49:29,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909730183] [2024-11-19 05:49:29,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:29,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:49:29,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:29,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:49:29,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:49:30,528 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-19 05:49:30,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 382 transitions, 2479 flow. Second operand has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 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) [2024-11-19 05:49:30,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:30,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-19 05:49:30,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:31,890 INFO L124 PetriNetUnfolderBase]: 2637/9665 cut-off events. [2024-11-19 05:49:31,890 INFO L125 PetriNetUnfolderBase]: For 18307/18711 co-relation queries the response was YES. [2024-11-19 05:49:31,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30618 conditions, 9665 events. 2637/9665 cut-off events. For 18307/18711 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 90381 event pairs, 291 based on Foata normal form. 107/9708 useless extension candidates. Maximal degree in co-relation 30319. Up to 1582 conditions per place. [2024-11-19 05:49:31,960 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 131 selfloop transitions, 28 changer transitions 2/472 dead transitions. [2024-11-19 05:49:31,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 472 transitions, 3428 flow [2024-11-19 05:49:31,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 05:49:31,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 05:49:31,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1413 transitions. [2024-11-19 05:49:31,964 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8722222222222222 [2024-11-19 05:49:31,964 INFO L175 Difference]: Start difference. First operand has 287 places, 382 transitions, 2479 flow. Second operand 10 states and 1413 transitions. [2024-11-19 05:49:31,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 472 transitions, 3428 flow [2024-11-19 05:49:32,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 472 transitions, 3349 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-19 05:49:32,063 INFO L231 Difference]: Finished difference. Result has 298 places, 394 transitions, 2657 flow [2024-11-19 05:49:32,063 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2453, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2657, PETRI_PLACES=298, PETRI_TRANSITIONS=394} [2024-11-19 05:49:32,065 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 139 predicate places. [2024-11-19 05:49:32,065 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 394 transitions, 2657 flow [2024-11-19 05:49:32,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 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) [2024-11-19 05:49:32,065 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:32,066 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] [2024-11-19 05:49:32,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 05:49:32,066 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:32,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:32,066 INFO L85 PathProgramCache]: Analyzing trace with hash -945444439, now seen corresponding path program 5 times [2024-11-19 05:49:32,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:32,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43410195] [2024-11-19 05:49:32,067 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 05:49:32,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:32,094 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 05:49:32,095 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:32,581 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-11-19 05:49:32,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:32,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43410195] [2024-11-19 05:49:32,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43410195] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:32,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571996006] [2024-11-19 05:49:32,582 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 05:49:32,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:32,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:32,584 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) [2024-11-19 05:49:32,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 05:49:32,710 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 05:49:32,710 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:32,712 INFO L255 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-19 05:49:32,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:32,938 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 13 treesize of output 9 [2024-11-19 05:49:32,994 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:32,994 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 05:49:32,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571996006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:32,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 05:49:32,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-11-19 05:49:32,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834032561] [2024-11-19 05:49:32,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:32,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:49:32,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:32,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:49:32,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-11-19 05:49:33,877 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-19 05:49:33,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 394 transitions, 2657 flow. Second operand has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 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) [2024-11-19 05:49:33,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:33,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-19 05:49:33,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:35,595 INFO L124 PetriNetUnfolderBase]: 2967/10860 cut-off events. [2024-11-19 05:49:35,596 INFO L125 PetriNetUnfolderBase]: For 23272/23787 co-relation queries the response was YES. [2024-11-19 05:49:35,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35145 conditions, 10860 events. 2967/10860 cut-off events. For 23272/23787 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 104219 event pairs, 320 based on Foata normal form. 101/10883 useless extension candidates. Maximal degree in co-relation 34840. Up to 1710 conditions per place. [2024-11-19 05:49:35,682 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 132 selfloop transitions, 30 changer transitions 2/475 dead transitions. [2024-11-19 05:49:35,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 475 transitions, 3636 flow [2024-11-19 05:49:35,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 05:49:35,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 05:49:35,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1416 transitions. [2024-11-19 05:49:35,688 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8740740740740741 [2024-11-19 05:49:35,688 INFO L175 Difference]: Start difference. First operand has 298 places, 394 transitions, 2657 flow. Second operand 10 states and 1416 transitions. [2024-11-19 05:49:35,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 475 transitions, 3636 flow [2024-11-19 05:49:35,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 475 transitions, 3543 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-11-19 05:49:35,800 INFO L231 Difference]: Finished difference. Result has 309 places, 409 transitions, 2895 flow [2024-11-19 05:49:35,800 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2614, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2895, PETRI_PLACES=309, PETRI_TRANSITIONS=409} [2024-11-19 05:49:35,801 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 150 predicate places. [2024-11-19 05:49:35,801 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 409 transitions, 2895 flow [2024-11-19 05:49:35,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 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) [2024-11-19 05:49:35,801 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:35,802 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] [2024-11-19 05:49:35,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 05:49:36,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:36,002 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:36,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:36,003 INFO L85 PathProgramCache]: Analyzing trace with hash -998215493, now seen corresponding path program 6 times [2024-11-19 05:49:36,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:36,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166219680] [2024-11-19 05:49:36,003 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 05:49:36,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:36,021 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 05:49:36,021 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:36,196 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:36,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:36,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166219680] [2024-11-19 05:49:36,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166219680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:36,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:36,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:49:36,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118849535] [2024-11-19 05:49:36,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:36,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 05:49:36,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:36,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 05:49:36,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:49:37,009 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-19 05:49:37,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 409 transitions, 2895 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:49:37,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:37,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-19 05:49:37,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:39,215 INFO L124 PetriNetUnfolderBase]: 3289/11984 cut-off events. [2024-11-19 05:49:39,215 INFO L125 PetriNetUnfolderBase]: For 29268/29804 co-relation queries the response was YES. [2024-11-19 05:49:39,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39652 conditions, 11984 events. 3289/11984 cut-off events. For 29268/29804 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 117859 event pairs, 342 based on Foata normal form. 108/12004 useless extension candidates. Maximal degree in co-relation 39341. Up to 1958 conditions per place. [2024-11-19 05:49:39,335 INFO L140 encePairwiseOnDemand]: 148/162 looper letters, 149 selfloop transitions, 34 changer transitions 1/495 dead transitions. [2024-11-19 05:49:39,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 495 transitions, 4019 flow [2024-11-19 05:49:39,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:49:39,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:49:39,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1284 transitions. [2024-11-19 05:49:39,337 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8806584362139918 [2024-11-19 05:49:39,337 INFO L175 Difference]: Start difference. First operand has 309 places, 409 transitions, 2895 flow. Second operand 9 states and 1284 transitions. [2024-11-19 05:49:39,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 495 transitions, 4019 flow [2024-11-19 05:49:39,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 495 transitions, 3921 flow, removed 27 selfloop flow, removed 3 redundant places. [2024-11-19 05:49:39,489 INFO L231 Difference]: Finished difference. Result has 320 places, 424 transitions, 3136 flow [2024-11-19 05:49:39,489 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2834, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3136, PETRI_PLACES=320, PETRI_TRANSITIONS=424} [2024-11-19 05:49:39,489 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 161 predicate places. [2024-11-19 05:49:39,489 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 424 transitions, 3136 flow [2024-11-19 05:49:39,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:49:39,490 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:39,490 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] [2024-11-19 05:49:39,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 05:49:39,490 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:39,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:39,491 INFO L85 PathProgramCache]: Analyzing trace with hash 139229261, now seen corresponding path program 7 times [2024-11-19 05:49:39,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:39,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311816249] [2024-11-19 05:49:39,491 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 05:49:39,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:39,828 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:39,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:39,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311816249] [2024-11-19 05:49:39,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311816249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:39,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:39,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:49:39,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379453895] [2024-11-19 05:49:39,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:39,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 05:49:39,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:39,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 05:49:39,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:49:40,566 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-19 05:49:40,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 424 transitions, 3136 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:49:40,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:40,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-19 05:49:40,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:42,508 INFO L124 PetriNetUnfolderBase]: 3633/13231 cut-off events. [2024-11-19 05:49:42,508 INFO L125 PetriNetUnfolderBase]: For 37636/38240 co-relation queries the response was YES. [2024-11-19 05:49:42,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44951 conditions, 13231 events. 3633/13231 cut-off events. For 37636/38240 co-relation queries the response was YES. Maximal size of possible extension queue 413. Compared 133223 event pairs, 416 based on Foata normal form. 100/13230 useless extension candidates. Maximal degree in co-relation 44635. Up to 2106 conditions per place. [2024-11-19 05:49:42,649 INFO L140 encePairwiseOnDemand]: 148/162 looper letters, 148 selfloop transitions, 36 changer transitions 0/495 dead transitions. [2024-11-19 05:49:42,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 495 transitions, 4233 flow [2024-11-19 05:49:42,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:49:42,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:49:42,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1286 transitions. [2024-11-19 05:49:42,651 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8820301783264746 [2024-11-19 05:49:42,651 INFO L175 Difference]: Start difference. First operand has 320 places, 424 transitions, 3136 flow. Second operand 9 states and 1286 transitions. [2024-11-19 05:49:42,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 495 transitions, 4233 flow [2024-11-19 05:49:42,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 495 transitions, 4133 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-19 05:49:42,838 INFO L231 Difference]: Finished difference. Result has 333 places, 443 transitions, 3486 flow [2024-11-19 05:49:42,838 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=3058, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3486, PETRI_PLACES=333, PETRI_TRANSITIONS=443} [2024-11-19 05:49:42,839 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 174 predicate places. [2024-11-19 05:49:42,839 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 443 transitions, 3486 flow [2024-11-19 05:49:42,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:49:42,839 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:42,839 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] [2024-11-19 05:49:42,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 05:49:42,840 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:42,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:42,840 INFO L85 PathProgramCache]: Analyzing trace with hash -344748101, now seen corresponding path program 8 times [2024-11-19 05:49:42,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:42,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122514085] [2024-11-19 05:49:42,840 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:42,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:42,857 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:42,858 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:43,065 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:43,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:43,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122514085] [2024-11-19 05:49:43,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122514085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:43,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:43,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:49:43,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671075182] [2024-11-19 05:49:43,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:43,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 05:49:43,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:43,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 05:49:43,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:49:43,453 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-19 05:49:43,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 443 transitions, 3486 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:49:43,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:43,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-19 05:49:43,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:45,541 INFO L124 PetriNetUnfolderBase]: 4229/15194 cut-off events. [2024-11-19 05:49:45,542 INFO L125 PetriNetUnfolderBase]: For 48478/49241 co-relation queries the response was YES. [2024-11-19 05:49:45,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52664 conditions, 15194 events. 4229/15194 cut-off events. For 48478/49241 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 158644 event pairs, 434 based on Foata normal form. 127/15206 useless extension candidates. Maximal degree in co-relation 52341. Up to 2504 conditions per place. [2024-11-19 05:49:45,682 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 169 selfloop transitions, 45 changer transitions 0/525 dead transitions. [2024-11-19 05:49:45,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 525 transitions, 4789 flow [2024-11-19 05:49:45,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:49:45,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:49:45,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1288 transitions. [2024-11-19 05:49:45,684 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8834019204389575 [2024-11-19 05:49:45,684 INFO L175 Difference]: Start difference. First operand has 333 places, 443 transitions, 3486 flow. Second operand 9 states and 1288 transitions. [2024-11-19 05:49:45,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 525 transitions, 4789 flow [2024-11-19 05:49:45,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 525 transitions, 4685 flow, removed 52 selfloop flow, removed 0 redundant places. [2024-11-19 05:49:45,907 INFO L231 Difference]: Finished difference. Result has 348 places, 461 transitions, 3838 flow [2024-11-19 05:49:45,908 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=3382, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3838, PETRI_PLACES=348, PETRI_TRANSITIONS=461} [2024-11-19 05:49:45,908 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 189 predicate places. [2024-11-19 05:49:45,908 INFO L471 AbstractCegarLoop]: Abstraction has has 348 places, 461 transitions, 3838 flow [2024-11-19 05:49:45,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:49:45,909 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:45,909 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] [2024-11-19 05:49:45,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 05:49:45,909 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:45,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:45,909 INFO L85 PathProgramCache]: Analyzing trace with hash -963961903, now seen corresponding path program 9 times [2024-11-19 05:49:45,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:45,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223278103] [2024-11-19 05:49:45,909 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 05:49:45,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:45,922 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 05:49:45,922 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:46,083 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:46,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:46,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223278103] [2024-11-19 05:49:46,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223278103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:46,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:46,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:49:46,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987168835] [2024-11-19 05:49:46,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:46,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 05:49:46,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:46,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 05:49:46,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:49:46,561 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-19 05:49:46,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 461 transitions, 3838 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:49:46,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:46,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-19 05:49:46,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:48,990 INFO L124 PetriNetUnfolderBase]: 4818/17260 cut-off events. [2024-11-19 05:49:48,990 INFO L125 PetriNetUnfolderBase]: For 60093/60963 co-relation queries the response was YES. [2024-11-19 05:49:49,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61007 conditions, 17260 events. 4818/17260 cut-off events. For 60093/60963 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 186287 event pairs, 476 based on Foata normal form. 140/17277 useless extension candidates. Maximal degree in co-relation 60676. Up to 2857 conditions per place. [2024-11-19 05:49:49,169 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 184 selfloop transitions, 46 changer transitions 0/541 dead transitions. [2024-11-19 05:49:49,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 541 transitions, 5096 flow [2024-11-19 05:49:49,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:49:49,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:49:49,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1288 transitions. [2024-11-19 05:49:49,171 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8834019204389575 [2024-11-19 05:49:49,171 INFO L175 Difference]: Start difference. First operand has 348 places, 461 transitions, 3838 flow. Second operand 9 states and 1288 transitions. [2024-11-19 05:49:49,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 541 transitions, 5096 flow [2024-11-19 05:49:49,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 541 transitions, 5010 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-11-19 05:49:49,467 INFO L231 Difference]: Finished difference. Result has 362 places, 478 transitions, 4161 flow [2024-11-19 05:49:49,468 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=3752, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4161, PETRI_PLACES=362, PETRI_TRANSITIONS=478} [2024-11-19 05:49:49,468 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 203 predicate places. [2024-11-19 05:49:49,468 INFO L471 AbstractCegarLoop]: Abstraction has has 362 places, 478 transitions, 4161 flow [2024-11-19 05:49:49,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:49:49,469 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:49,469 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] [2024-11-19 05:49:49,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 05:49:49,469 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:49,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:49,469 INFO L85 PathProgramCache]: Analyzing trace with hash -91889053, now seen corresponding path program 10 times [2024-11-19 05:49:49,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:49,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360810513] [2024-11-19 05:49:49,469 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 05:49:49,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:49,498 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 05:49:49,498 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:49,692 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:49,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:49,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360810513] [2024-11-19 05:49:49,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360810513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:49,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:49,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:49:49,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159763197] [2024-11-19 05:49:49,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:49,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 05:49:49,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:49,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 05:49:49,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:49:50,290 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-19 05:49:50,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 478 transitions, 4161 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:49:50,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:50,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-19 05:49:50,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:53,334 INFO L124 PetriNetUnfolderBase]: 5106/18199 cut-off events. [2024-11-19 05:49:53,334 INFO L125 PetriNetUnfolderBase]: For 68090/69012 co-relation queries the response was YES. [2024-11-19 05:49:53,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65205 conditions, 18199 events. 5106/18199 cut-off events. For 68090/69012 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 199066 event pairs, 508 based on Foata normal form. 157/18226 useless extension candidates. Maximal degree in co-relation 64867. Up to 3039 conditions per place. [2024-11-19 05:49:53,470 INFO L140 encePairwiseOnDemand]: 146/162 looper letters, 183 selfloop transitions, 53 changer transitions 0/547 dead transitions. [2024-11-19 05:49:53,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 547 transitions, 5463 flow [2024-11-19 05:49:53,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:49:53,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:49:53,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1290 transitions. [2024-11-19 05:49:53,471 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8847736625514403 [2024-11-19 05:49:53,471 INFO L175 Difference]: Start difference. First operand has 362 places, 478 transitions, 4161 flow. Second operand 9 states and 1290 transitions. [2024-11-19 05:49:53,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 547 transitions, 5463 flow [2024-11-19 05:49:54,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 547 transitions, 5310 flow, removed 57 selfloop flow, removed 2 redundant places. [2024-11-19 05:49:54,019 INFO L231 Difference]: Finished difference. Result has 372 places, 492 transitions, 4440 flow [2024-11-19 05:49:54,020 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=4064, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4440, PETRI_PLACES=372, PETRI_TRANSITIONS=492} [2024-11-19 05:49:54,020 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 213 predicate places. [2024-11-19 05:49:54,020 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 492 transitions, 4440 flow [2024-11-19 05:49:54,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:49:54,021 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:54,021 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] [2024-11-19 05:49:54,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 05:49:54,021 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:54,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:54,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1073299725, now seen corresponding path program 11 times [2024-11-19 05:49:54,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:54,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009413121] [2024-11-19 05:49:54,022 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 05:49:54,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:54,045 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 05:49:54,045 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:54,413 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-11-19 05:49:54,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:54,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009413121] [2024-11-19 05:49:54,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009413121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:54,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164222140] [2024-11-19 05:49:54,414 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 05:49:54,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:54,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:54,416 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:49:54,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 05:49:54,544 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 05:49:54,544 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:54,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-19 05:49:54,548 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:54,750 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 13 treesize of output 9 [2024-11-19 05:49:54,779 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:54,779 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 05:49:54,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164222140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:54,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 05:49:54,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-11-19 05:49:54,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721037513] [2024-11-19 05:49:54,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:54,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:49:54,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:54,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:49:54,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-11-19 05:49:55,463 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-19 05:49:55,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 492 transitions, 4440 flow. Second operand has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 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) [2024-11-19 05:49:55,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:55,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-19 05:49:55,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:58,983 INFO L124 PetriNetUnfolderBase]: 5112/18196 cut-off events. [2024-11-19 05:49:58,983 INFO L125 PetriNetUnfolderBase]: For 72935/73877 co-relation queries the response was YES. [2024-11-19 05:49:59,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65910 conditions, 18196 events. 5112/18196 cut-off events. For 72935/73877 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 198927 event pairs, 506 based on Foata normal form. 165/18227 useless extension candidates. Maximal degree in co-relation 65568. Up to 3047 conditions per place. [2024-11-19 05:49:59,147 INFO L140 encePairwiseOnDemand]: 146/162 looper letters, 185 selfloop transitions, 58 changer transitions 0/554 dead transitions. [2024-11-19 05:49:59,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 554 transitions, 5666 flow [2024-11-19 05:49:59,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 05:49:59,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 05:49:59,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1423 transitions. [2024-11-19 05:49:59,149 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8783950617283951 [2024-11-19 05:49:59,149 INFO L175 Difference]: Start difference. First operand has 372 places, 492 transitions, 4440 flow. Second operand 10 states and 1423 transitions. [2024-11-19 05:49:59,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 554 transitions, 5666 flow [2024-11-19 05:49:59,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 554 transitions, 5506 flow, removed 39 selfloop flow, removed 4 redundant places. [2024-11-19 05:49:59,517 INFO L231 Difference]: Finished difference. Result has 382 places, 504 transitions, 4712 flow [2024-11-19 05:49:59,518 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=4304, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=492, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4712, PETRI_PLACES=382, PETRI_TRANSITIONS=504} [2024-11-19 05:49:59,518 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 223 predicate places. [2024-11-19 05:49:59,518 INFO L471 AbstractCegarLoop]: Abstraction has has 382 places, 504 transitions, 4712 flow [2024-11-19 05:49:59,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 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) [2024-11-19 05:49:59,519 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:59,519 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] [2024-11-19 05:49:59,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 05:49:59,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:59,719 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:49:59,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:59,720 INFO L85 PathProgramCache]: Analyzing trace with hash -54689603, now seen corresponding path program 12 times [2024-11-19 05:49:59,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:59,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145603610] [2024-11-19 05:49:59,720 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 05:49:59,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:59,736 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 05:49:59,737 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:59,944 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:59,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:59,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145603610] [2024-11-19 05:49:59,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145603610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:59,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:59,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:49:59,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868285402] [2024-11-19 05:49:59,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:59,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 05:49:59,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:59,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 05:49:59,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:50:00,437 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-19 05:50:00,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 504 transitions, 4712 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:50:00,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:50:00,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-19 05:50:00,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:50:04,057 INFO L124 PetriNetUnfolderBase]: 5106/18200 cut-off events. [2024-11-19 05:50:04,057 INFO L125 PetriNetUnfolderBase]: For 76877/77874 co-relation queries the response was YES. [2024-11-19 05:50:04,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66381 conditions, 18200 events. 5106/18200 cut-off events. For 76877/77874 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 199126 event pairs, 501 based on Foata normal form. 161/18226 useless extension candidates. Maximal degree in co-relation 66033. Up to 3043 conditions per place. [2024-11-19 05:50:04,205 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 198 selfloop transitions, 52 changer transitions 0/561 dead transitions. [2024-11-19 05:50:04,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 561 transitions, 5916 flow [2024-11-19 05:50:04,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:50:04,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:50:04,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1294 transitions. [2024-11-19 05:50:04,206 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.887517146776406 [2024-11-19 05:50:04,206 INFO L175 Difference]: Start difference. First operand has 382 places, 504 transitions, 4712 flow. Second operand 9 states and 1294 transitions. [2024-11-19 05:50:04,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 561 transitions, 5916 flow [2024-11-19 05:50:04,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 561 transitions, 5704 flow, removed 75 selfloop flow, removed 4 redundant places. [2024-11-19 05:50:04,547 INFO L231 Difference]: Finished difference. Result has 390 places, 512 transitions, 4848 flow [2024-11-19 05:50:04,547 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=4574, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=504, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4848, PETRI_PLACES=390, PETRI_TRANSITIONS=512} [2024-11-19 05:50:04,548 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 231 predicate places. [2024-11-19 05:50:04,548 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 512 transitions, 4848 flow [2024-11-19 05:50:04,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:50:04,548 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:50:04,548 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] [2024-11-19 05:50:04,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 05:50:04,549 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:50:04,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:50:04,549 INFO L85 PathProgramCache]: Analyzing trace with hash -302385627, now seen corresponding path program 13 times [2024-11-19 05:50:04,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:50:04,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392326051] [2024-11-19 05:50:04,549 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 05:50:04,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:50:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:50:04,825 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:50:04,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:50:04,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392326051] [2024-11-19 05:50:04,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392326051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:50:04,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:50:04,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:50:04,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311610437] [2024-11-19 05:50:04,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:50:04,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 05:50:04,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:50:04,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 05:50:04,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:50:05,272 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-19 05:50:05,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 512 transitions, 4848 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:50:05,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:50:05,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-19 05:50:05,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:50:08,958 INFO L124 PetriNetUnfolderBase]: 5112/18294 cut-off events. [2024-11-19 05:50:08,958 INFO L125 PetriNetUnfolderBase]: For 77733/78731 co-relation queries the response was YES. [2024-11-19 05:50:09,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66810 conditions, 18294 events. 5112/18294 cut-off events. For 77733/78731 co-relation queries the response was YES. Maximal size of possible extension queue 727. Compared 200556 event pairs, 507 based on Foata normal form. 163/18326 useless extension candidates. Maximal degree in co-relation 66459. Up to 3047 conditions per place. [2024-11-19 05:50:09,129 INFO L140 encePairwiseOnDemand]: 146/162 looper letters, 195 selfloop transitions, 60 changer transitions 0/566 dead transitions. [2024-11-19 05:50:09,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 566 transitions, 6006 flow [2024-11-19 05:50:09,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:50:09,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:50:09,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1293 transitions. [2024-11-19 05:50:09,131 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8868312757201646 [2024-11-19 05:50:09,131 INFO L175 Difference]: Start difference. First operand has 390 places, 512 transitions, 4848 flow. Second operand 9 states and 1293 transitions. [2024-11-19 05:50:09,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 566 transitions, 6006 flow [2024-11-19 05:50:09,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 566 transitions, 5918 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-19 05:50:09,562 INFO L231 Difference]: Finished difference. Result has 397 places, 521 transitions, 5087 flow [2024-11-19 05:50:09,563 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=4762, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=512, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5087, PETRI_PLACES=397, PETRI_TRANSITIONS=521} [2024-11-19 05:50:09,563 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 238 predicate places. [2024-11-19 05:50:09,563 INFO L471 AbstractCegarLoop]: Abstraction has has 397 places, 521 transitions, 5087 flow [2024-11-19 05:50:09,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:50:09,564 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:50:09,564 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] [2024-11-19 05:50:09,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 05:50:09,564 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:50:09,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:50:09,565 INFO L85 PathProgramCache]: Analyzing trace with hash -2116879209, now seen corresponding path program 14 times [2024-11-19 05:50:09,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:50:09,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382799708] [2024-11-19 05:50:09,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:50:09,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:50:09,582 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:50:09,582 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:50:09,794 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:50:09,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:50:09,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382799708] [2024-11-19 05:50:09,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382799708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:50:09,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:50:09,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:50:09,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132590327] [2024-11-19 05:50:09,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:50:09,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 05:50:09,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:50:09,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 05:50:09,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:50:10,302 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-19 05:50:10,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 521 transitions, 5087 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:50:10,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:50:10,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-19 05:50:10,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:50:13,813 INFO L124 PetriNetUnfolderBase]: 4845/17502 cut-off events. [2024-11-19 05:50:13,814 INFO L125 PetriNetUnfolderBase]: For 75022/75956 co-relation queries the response was YES. [2024-11-19 05:50:13,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63983 conditions, 17502 events. 4845/17502 cut-off events. For 75022/75956 co-relation queries the response was YES. Maximal size of possible extension queue 668. Compared 189935 event pairs, 498 based on Foata normal form. 148/17521 useless extension candidates. Maximal degree in co-relation 63629. Up to 2887 conditions per place. [2024-11-19 05:50:13,997 INFO L140 encePairwiseOnDemand]: 146/162 looper letters, 198 selfloop transitions, 59 changer transitions 0/568 dead transitions. [2024-11-19 05:50:13,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 568 transitions, 6144 flow [2024-11-19 05:50:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:50:13,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:50:13,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1296 transitions. [2024-11-19 05:50:13,999 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2024-11-19 05:50:13,999 INFO L175 Difference]: Start difference. First operand has 397 places, 521 transitions, 5087 flow. Second operand 9 states and 1296 transitions. [2024-11-19 05:50:14,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 568 transitions, 6144 flow [2024-11-19 05:50:14,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 568 transitions, 6012 flow, removed 18 selfloop flow, removed 5 redundant places. [2024-11-19 05:50:14,549 INFO L231 Difference]: Finished difference. Result has 403 places, 528 transitions, 5252 flow [2024-11-19 05:50:14,549 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=4914, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5252, PETRI_PLACES=403, PETRI_TRANSITIONS=528} [2024-11-19 05:50:14,549 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 244 predicate places. [2024-11-19 05:50:14,549 INFO L471 AbstractCegarLoop]: Abstraction has has 403 places, 528 transitions, 5252 flow [2024-11-19 05:50:14,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:50:14,550 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:50:14,550 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] [2024-11-19 05:50:14,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 05:50:14,550 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:50:14,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:50:14,550 INFO L85 PathProgramCache]: Analyzing trace with hash -864408663, now seen corresponding path program 15 times [2024-11-19 05:50:14,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:50:14,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487487321] [2024-11-19 05:50:14,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 05:50:14,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:50:14,562 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 05:50:14,562 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:50:14,700 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:50:14,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:50:14,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487487321] [2024-11-19 05:50:14,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487487321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:50:14,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:50:14,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:50:14,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418928676] [2024-11-19 05:50:14,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:50:14,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 05:50:14,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:50:14,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 05:50:14,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:50:15,353 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-19 05:50:15,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 528 transitions, 5252 flow. Second operand has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:50:15,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:50:15,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-19 05:50:15,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:50:18,774 INFO L124 PetriNetUnfolderBase]: 4565/16683 cut-off events. [2024-11-19 05:50:18,775 INFO L125 PetriNetUnfolderBase]: For 71749/72623 co-relation queries the response was YES. [2024-11-19 05:50:18,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60882 conditions, 16683 events. 4565/16683 cut-off events. For 71749/72623 co-relation queries the response was YES. Maximal size of possible extension queue 608. Compared 178918 event pairs, 481 based on Foata normal form. 143/16708 useless extension candidates. Maximal degree in co-relation 60525. Up to 2722 conditions per place. [2024-11-19 05:50:18,902 INFO L140 encePairwiseOnDemand]: 148/162 looper letters, 205 selfloop transitions, 60 changer transitions 0/576 dead transitions. [2024-11-19 05:50:18,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 576 transitions, 6326 flow [2024-11-19 05:50:18,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:50:18,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:50:18,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1288 transitions. [2024-11-19 05:50:18,903 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8834019204389575 [2024-11-19 05:50:18,903 INFO L175 Difference]: Start difference. First operand has 403 places, 528 transitions, 5252 flow. Second operand 9 states and 1288 transitions. [2024-11-19 05:50:18,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 576 transitions, 6326 flow [2024-11-19 05:50:19,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 576 transitions, 6170 flow, removed 31 selfloop flow, removed 5 redundant places. [2024-11-19 05:50:19,236 INFO L231 Difference]: Finished difference. Result has 409 places, 531 transitions, 5299 flow [2024-11-19 05:50:19,236 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=5054, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5299, PETRI_PLACES=409, PETRI_TRANSITIONS=531} [2024-11-19 05:50:19,237 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 250 predicate places. [2024-11-19 05:50:19,237 INFO L471 AbstractCegarLoop]: Abstraction has has 409 places, 531 transitions, 5299 flow [2024-11-19 05:50:19,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 133.77777777777777) internal successors, (1204), 9 states have internal predecessors, (1204), 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) [2024-11-19 05:50:19,237 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:50:19,237 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] [2024-11-19 05:50:19,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 05:50:19,237 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:50:19,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:50:19,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1177744483, now seen corresponding path program 16 times [2024-11-19 05:50:19,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:50:19,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308645567] [2024-11-19 05:50:19,238 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 05:50:19,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:50:19,258 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 05:50:19,259 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:50:19,654 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:50:19,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:50:19,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308645567] [2024-11-19 05:50:19,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308645567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:50:19,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:50:19,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 05:50:19,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141196556] [2024-11-19 05:50:19,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:50:19,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:50:19,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:50:19,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:50:19,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:50:20,613 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-19 05:50:20,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 531 transitions, 5299 flow. Second operand has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 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) [2024-11-19 05:50:20,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:50:20,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-19 05:50:20,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:50:24,032 INFO L124 PetriNetUnfolderBase]: 4573/16726 cut-off events. [2024-11-19 05:50:24,032 INFO L125 PetriNetUnfolderBase]: For 71751/72590 co-relation queries the response was YES. [2024-11-19 05:50:24,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61056 conditions, 16726 events. 4573/16726 cut-off events. For 71751/72590 co-relation queries the response was YES. Maximal size of possible extension queue 608. Compared 179590 event pairs, 463 based on Foata normal form. 202/16813 useless extension candidates. Maximal degree in co-relation 60696. Up to 2749 conditions per place. [2024-11-19 05:50:24,186 INFO L140 encePairwiseOnDemand]: 147/162 looper letters, 204 selfloop transitions, 90 changer transitions 0/605 dead transitions. [2024-11-19 05:50:24,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 605 transitions, 6811 flow [2024-11-19 05:50:24,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 05:50:24,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 05:50:24,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1412 transitions. [2024-11-19 05:50:24,188 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8716049382716049 [2024-11-19 05:50:24,188 INFO L175 Difference]: Start difference. First operand has 409 places, 531 transitions, 5299 flow. Second operand 10 states and 1412 transitions. [2024-11-19 05:50:24,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 605 transitions, 6811 flow [2024-11-19 05:50:24,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 605 transitions, 6654 flow, removed 15 selfloop flow, removed 5 redundant places. [2024-11-19 05:50:24,527 INFO L231 Difference]: Finished difference. Result has 418 places, 542 transitions, 5697 flow [2024-11-19 05:50:24,528 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=5168, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=531, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=445, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5697, PETRI_PLACES=418, PETRI_TRANSITIONS=542} [2024-11-19 05:50:24,528 INFO L277 CegarLoopForPetriNet]: 159 programPoint places, 259 predicate places. [2024-11-19 05:50:24,528 INFO L471 AbstractCegarLoop]: Abstraction has has 418 places, 542 transitions, 5697 flow [2024-11-19 05:50:24,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 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) [2024-11-19 05:50:24,529 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:50:24,529 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] [2024-11-19 05:50:24,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 05:50:24,529 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:50:24,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:50:24,529 INFO L85 PathProgramCache]: Analyzing trace with hash 159280231, now seen corresponding path program 17 times [2024-11-19 05:50:24,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:50:24,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960426663] [2024-11-19 05:50:24,530 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 05:50:24,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:50:24,548 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 05:50:24,549 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:50:24,982 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-11-19 05:50:24,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:50:24,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960426663] [2024-11-19 05:50:24,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960426663] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:50:24,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400726941] [2024-11-19 05:50:24,982 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 05:50:24,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:50:24,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:50:24,984 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:50:24,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 05:50:25,111 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 05:50:25,111 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:50:25,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-19 05:50:25,115 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:50:25,280 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 13 treesize of output 9 [2024-11-19 05:50:25,305 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:50:25,305 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 05:50:25,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400726941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:50:25,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 05:50:25,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-11-19 05:50:25,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751503388] [2024-11-19 05:50:25,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:50:25,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:50:25,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:50:25,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:50:25,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-11-19 05:50:25,851 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 162 [2024-11-19 05:50:25,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 542 transitions, 5697 flow. Second operand has 10 states, 10 states have (on average 133.6) internal successors, (1336), 10 states have internal predecessors, (1336), 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) [2024-11-19 05:50:25,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:50:25,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 162 [2024-11-19 05:50:25,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand