./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 3289d67d 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.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:35:40,616 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:35:40,678 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:35:40,682 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:35:40,683 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:35:40,710 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:35:40,710 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:35:40,710 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:35:40,711 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:35:40,712 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:35:40,712 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:35:40,713 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:35:40,713 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:35:40,713 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:35:40,715 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:35:40,715 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:35:40,715 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:35:40,716 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:35:40,716 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:35:40,716 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:35:40,716 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:35:40,719 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:35:40,720 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:35:40,720 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:35:40,720 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:35:40,720 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:35:40,721 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:35:40,721 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:35:40,721 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:35:40,721 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:35:40,721 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:35:40,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:35:40,722 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:35:40,722 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:35:40,722 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:35:40,722 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:35:40,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:35:40,723 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:35:40,723 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:35:40,723 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:35:40,723 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:35:40,724 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 [2024-11-16 23:35:40,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:35:40,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:35:40,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:35:40,968 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:35:40,969 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:35:40,970 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2024-11-16 23:35:42,286 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:35:42,485 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:35:42,485 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2024-11-16 23:35:42,525 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5c4b239e/ff9d44041167445c8b62938b706ca61c/FLAGe27eee70b [2024-11-16 23:35:42,553 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5c4b239e/ff9d44041167445c8b62938b706ca61c [2024-11-16 23:35:42,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:35:42,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:35:42,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:35:42,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:35:42,563 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:35:42,564 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:35:42" (1/1) ... [2024-11-16 23:35:42,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@480b6288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:42, skipping insertion in model container [2024-11-16 23:35:42,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:35:42" (1/1) ... [2024-11-16 23:35:42,626 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:35:42,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:35:43,007 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:35:43,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:35:43,105 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:35:43,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:43 WrapperNode [2024-11-16 23:35:43,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:35:43,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:35:43,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:35:43,107 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:35:43,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:43" (1/1) ... [2024-11-16 23:35:43,135 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:43" (1/1) ... [2024-11-16 23:35:43,162 INFO L138 Inliner]: procedures = 263, calls = 70, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 153 [2024-11-16 23:35:43,164 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:35:43,165 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:35:43,165 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:35:43,165 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:35:43,173 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:43" (1/1) ... [2024-11-16 23:35:43,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:43" (1/1) ... [2024-11-16 23:35:43,179 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:43" (1/1) ... [2024-11-16 23:35:43,182 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:43" (1/1) ... [2024-11-16 23:35:43,196 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:43" (1/1) ... [2024-11-16 23:35:43,196 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:43" (1/1) ... [2024-11-16 23:35:43,197 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:43" (1/1) ... [2024-11-16 23:35:43,198 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:43" (1/1) ... [2024-11-16 23:35:43,204 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:35:43,204 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:35:43,204 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:35:43,204 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:35:43,205 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:43" (1/1) ... [2024-11-16 23:35:43,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:35:43,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:35:43,241 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) [2024-11-16 23:35:43,243 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 [2024-11-16 23:35:43,284 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 23:35:43,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:35:43,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:35:43,285 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 23:35:43,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:35:43,285 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-16 23:35:43,285 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-16 23:35:43,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:35:43,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:35:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:35:43,287 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:35:43,424 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:35:43,429 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:35:43,698 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:35:43,698 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:35:43,724 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:35:43,725 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:35:43,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:35:43 BoogieIcfgContainer [2024-11-16 23:35:43,725 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:35:43,728 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:35:43,732 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:35:43,735 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:35:43,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:35:42" (1/3) ... [2024-11-16 23:35:43,735 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e190dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:35:43, skipping insertion in model container [2024-11-16 23:35:43,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:43" (2/3) ... [2024-11-16 23:35:43,736 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e190dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:35:43, skipping insertion in model container [2024-11-16 23:35:43,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:35:43" (3/3) ... [2024-11-16 23:35:43,737 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_02-funloop_norace.i [2024-11-16 23:35:43,751 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:35:43,752 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-16 23:35:43,753 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:35:43,809 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:35:43,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 165 transitions, 334 flow [2024-11-16 23:35:43,892 INFO L124 PetriNetUnfolderBase]: 6/164 cut-off events. [2024-11-16 23:35:43,892 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:35:43,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 164 events. 6/164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 138 event pairs, 0 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2024-11-16 23:35:43,899 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 165 transitions, 334 flow [2024-11-16 23:35:43,905 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 164 transitions, 331 flow [2024-11-16 23:35:43,913 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:35:43,918 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;@6183c594, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:35:43,919 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-16 23:35:43,940 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:35:43,940 INFO L124 PetriNetUnfolderBase]: 4/123 cut-off events. [2024-11-16 23:35:43,940 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:35:43,940 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:43,941 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] [2024-11-16 23:35:43,942 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 23:35:43,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:43,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1313153939, now seen corresponding path program 1 times [2024-11-16 23:35:43,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:43,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371078576] [2024-11-16 23:35:43,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:43,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:44,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:44,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:44,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371078576] [2024-11-16 23:35:44,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371078576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:44,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:35:44,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:35:44,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044923531] [2024-11-16 23:35:44,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:44,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:35:44,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:44,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:35:44,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:35:44,328 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 165 [2024-11-16 23:35:44,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 164 transitions, 331 flow. Second operand has 2 states, 2 states have (on average 158.5) internal successors, (317), 2 states have internal predecessors, (317), 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) [2024-11-16 23:35:44,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:44,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 165 [2024-11-16 23:35:44,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:44,421 INFO L124 PetriNetUnfolderBase]: 9/239 cut-off events. [2024-11-16 23:35:44,421 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:35:44,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 239 events. 9/239 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 362 event pairs, 4 based on Foata normal form. 9/234 useless extension candidates. Maximal degree in co-relation 172. Up to 16 conditions per place. [2024-11-16 23:35:44,428 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 5 selfloop transitions, 0 changer transitions 0/161 dead transitions. [2024-11-16 23:35:44,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 161 transitions, 335 flow [2024-11-16 23:35:44,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:35:44,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:35:44,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 322 transitions. [2024-11-16 23:35:44,442 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9757575757575757 [2024-11-16 23:35:44,445 INFO L175 Difference]: Start difference. First operand has 162 places, 164 transitions, 331 flow. Second operand 2 states and 322 transitions. [2024-11-16 23:35:44,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 161 transitions, 335 flow [2024-11-16 23:35:44,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 161 transitions, 334 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:35:44,455 INFO L231 Difference]: Finished difference. Result has 162 places, 161 transitions, 324 flow [2024-11-16 23:35:44,456 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=324, PETRI_PLACES=162, PETRI_TRANSITIONS=161} [2024-11-16 23:35:44,460 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 0 predicate places. [2024-11-16 23:35:44,461 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 161 transitions, 324 flow [2024-11-16 23:35:44,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 158.5) internal successors, (317), 2 states have internal predecessors, (317), 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) [2024-11-16 23:35:44,462 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:44,462 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] [2024-11-16 23:35:44,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:35:44,463 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 23:35:44,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:44,464 INFO L85 PathProgramCache]: Analyzing trace with hash 937818848, now seen corresponding path program 1 times [2024-11-16 23:35:44,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:44,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091819330] [2024-11-16 23:35:44,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:44,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:44,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:44,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:44,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:44,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091819330] [2024-11-16 23:35:44,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091819330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:44,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:35:44,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:35:44,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903945599] [2024-11-16 23:35:44,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:44,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:35:44,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:44,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:35:44,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:35:44,680 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 165 [2024-11-16 23:35:44,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 161 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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) [2024-11-16 23:35:44,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:44,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 165 [2024-11-16 23:35:44,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:44,744 INFO L124 PetriNetUnfolderBase]: 11/250 cut-off events. [2024-11-16 23:35:44,744 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:35:44,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 250 events. 11/250 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 407 event pairs, 6 based on Foata normal form. 1/236 useless extension candidates. Maximal degree in co-relation 278. Up to 26 conditions per place. [2024-11-16 23:35:44,748 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 10 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2024-11-16 23:35:44,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 162 transitions, 350 flow [2024-11-16 23:35:44,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:35:44,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:35:44,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2024-11-16 23:35:44,753 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9414141414141414 [2024-11-16 23:35:44,754 INFO L175 Difference]: Start difference. First operand has 162 places, 161 transitions, 324 flow. Second operand 3 states and 466 transitions. [2024-11-16 23:35:44,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 162 transitions, 350 flow [2024-11-16 23:35:44,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 162 transitions, 350 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:35:44,758 INFO L231 Difference]: Finished difference. Result has 165 places, 162 transitions, 336 flow [2024-11-16 23:35:44,758 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=165, PETRI_TRANSITIONS=162} [2024-11-16 23:35:44,759 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 3 predicate places. [2024-11-16 23:35:44,759 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 162 transitions, 336 flow [2024-11-16 23:35:44,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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) [2024-11-16 23:35:44,759 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:44,760 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:35:44,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:35:44,760 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 23:35:44,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:44,761 INFO L85 PathProgramCache]: Analyzing trace with hash 41218071, now seen corresponding path program 1 times [2024-11-16 23:35:44,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:44,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437154342] [2024-11-16 23:35:44,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:44,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:44,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:44,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:44,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:44,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437154342] [2024-11-16 23:35:44,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437154342] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:35:44,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862926898] [2024-11-16 23:35:44,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:44,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:35:44,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:35:44,978 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) [2024-11-16 23:35:44,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 23:35:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:45,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 23:35:45,098 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:35:45,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:45,164 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:35:45,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:45,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862926898] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:35:45,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:35:45,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-16 23:35:45,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263592007] [2024-11-16 23:35:45,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:35:45,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 23:35:45,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:45,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 23:35:45,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 23:35:45,254 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 165 [2024-11-16 23:35:45,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 162 transitions, 336 flow. Second operand has 10 states, 10 states have (on average 150.0) internal successors, (1500), 10 states have internal predecessors, (1500), 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) [2024-11-16 23:35:45,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:45,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 165 [2024-11-16 23:35:45,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:45,386 INFO L124 PetriNetUnfolderBase]: 11/259 cut-off events. [2024-11-16 23:35:45,387 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 23:35:45,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 259 events. 11/259 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 402 event pairs, 6 based on Foata normal form. 2/246 useless extension candidates. Maximal degree in co-relation 304. Up to 26 conditions per place. [2024-11-16 23:35:45,390 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 14 selfloop transitions, 9 changer transitions 0/170 dead transitions. [2024-11-16 23:35:45,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 170 transitions, 400 flow [2024-11-16 23:35:45,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:35:45,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 23:35:45,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1357 transitions. [2024-11-16 23:35:45,394 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9138047138047138 [2024-11-16 23:35:45,394 INFO L175 Difference]: Start difference. First operand has 165 places, 162 transitions, 336 flow. Second operand 9 states and 1357 transitions. [2024-11-16 23:35:45,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 170 transitions, 400 flow [2024-11-16 23:35:45,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 170 transitions, 398 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:35:45,398 INFO L231 Difference]: Finished difference. Result has 175 places, 168 transitions, 384 flow [2024-11-16 23:35:45,400 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=384, PETRI_PLACES=175, PETRI_TRANSITIONS=168} [2024-11-16 23:35:45,401 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 13 predicate places. [2024-11-16 23:35:45,401 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 168 transitions, 384 flow [2024-11-16 23:35:45,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 150.0) internal successors, (1500), 10 states have internal predecessors, (1500), 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) [2024-11-16 23:35:45,402 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:45,403 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:35:45,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 23:35:45,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:35:45,604 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 23:35:45,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:45,604 INFO L85 PathProgramCache]: Analyzing trace with hash -409158971, now seen corresponding path program 2 times [2024-11-16 23:35:45,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:45,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339826119] [2024-11-16 23:35:45,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:45,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:45,795 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:45,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:45,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339826119] [2024-11-16 23:35:45,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339826119] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:35:45,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811508502] [2024-11-16 23:35:45,796 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 23:35:45,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:35:45,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:35:45,801 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) [2024-11-16 23:35:45,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 23:35:45,882 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-16 23:35:45,882 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 23:35:45,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-16 23:35:45,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:35:45,912 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 11 treesize of output 7 [2024-11-16 23:35:45,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-16 23:35:45,954 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:35:45,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-16 23:35:45,987 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:35:45,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-16 23:35:46,014 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-16 23:35:46,015 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:35:46,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811508502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:46,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:35:46,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-16 23:35:46,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698040022] [2024-11-16 23:35:46,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:46,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:35:46,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:46,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:35:46,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:35:46,123 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 165 [2024-11-16 23:35:46,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 168 transitions, 384 flow. Second operand has 6 states, 6 states have (on average 140.5) internal successors, (843), 6 states have internal predecessors, (843), 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) [2024-11-16 23:35:46,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:46,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 165 [2024-11-16 23:35:46,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:46,286 INFO L124 PetriNetUnfolderBase]: 150/852 cut-off events. [2024-11-16 23:35:46,286 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-16 23:35:46,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1181 conditions, 852 events. 150/852 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4731 event pairs, 62 based on Foata normal form. 0/793 useless extension candidates. Maximal degree in co-relation 1174. Up to 240 conditions per place. [2024-11-16 23:35:46,290 INFO L140 encePairwiseOnDemand]: 154/165 looper letters, 30 selfloop transitions, 22 changer transitions 0/197 dead transitions. [2024-11-16 23:35:46,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 197 transitions, 546 flow [2024-11-16 23:35:46,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:35:46,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:35:46,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 887 transitions. [2024-11-16 23:35:46,292 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.895959595959596 [2024-11-16 23:35:46,292 INFO L175 Difference]: Start difference. First operand has 175 places, 168 transitions, 384 flow. Second operand 6 states and 887 transitions. [2024-11-16 23:35:46,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 197 transitions, 546 flow [2024-11-16 23:35:46,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 197 transitions, 540 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-16 23:35:46,296 INFO L231 Difference]: Finished difference. Result has 184 places, 189 transitions, 528 flow [2024-11-16 23:35:46,297 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=528, PETRI_PLACES=184, PETRI_TRANSITIONS=189} [2024-11-16 23:35:46,298 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 22 predicate places. [2024-11-16 23:35:46,298 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 189 transitions, 528 flow [2024-11-16 23:35:46,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 140.5) internal successors, (843), 6 states have internal predecessors, (843), 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) [2024-11-16 23:35:46,299 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:46,299 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:35:46,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 23:35:46,503 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 [2024-11-16 23:35:46,504 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 23:35:46,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:46,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1942479620, now seen corresponding path program 1 times [2024-11-16 23:35:46,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:46,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104454334] [2024-11-16 23:35:46,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:46,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:46,730 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:46,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:46,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104454334] [2024-11-16 23:35:46,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104454334] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:35:46,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839069427] [2024-11-16 23:35:46,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:46,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:35:46,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:35:46,733 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) [2024-11-16 23:35:46,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 23:35:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:46,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-16 23:35:46,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:35:46,882 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:46,883 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:35:46,976 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:46,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839069427] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:35:46,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:35:46,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-16 23:35:46,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9407516] [2024-11-16 23:35:46,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:35:46,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-16 23:35:46,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:46,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-16 23:35:46,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-16 23:35:47,016 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 165 [2024-11-16 23:35:47,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 189 transitions, 528 flow. Second operand has 18 states, 18 states have (on average 150.0) internal successors, (2700), 18 states have internal predecessors, (2700), 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) [2024-11-16 23:35:47,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:47,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 165 [2024-11-16 23:35:47,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:47,250 INFO L124 PetriNetUnfolderBase]: 58/589 cut-off events. [2024-11-16 23:35:47,251 INFO L125 PetriNetUnfolderBase]: For 83/86 co-relation queries the response was YES. [2024-11-16 23:35:47,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 876 conditions, 589 events. 58/589 cut-off events. For 83/86 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2231 event pairs, 11 based on Foata normal form. 4/558 useless extension candidates. Maximal degree in co-relation 864. Up to 63 conditions per place. [2024-11-16 23:35:47,254 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 18 selfloop transitions, 21 changer transitions 0/207 dead transitions. [2024-11-16 23:35:47,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 207 transitions, 694 flow [2024-11-16 23:35:47,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-16 23:35:47,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-16 23:35:47,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3151 transitions. [2024-11-16 23:35:47,260 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9093795093795094 [2024-11-16 23:35:47,260 INFO L175 Difference]: Start difference. First operand has 184 places, 189 transitions, 528 flow. Second operand 21 states and 3151 transitions. [2024-11-16 23:35:47,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 207 transitions, 694 flow [2024-11-16 23:35:47,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 207 transitions, 694 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:35:47,266 INFO L231 Difference]: Finished difference. Result has 209 places, 202 transitions, 658 flow [2024-11-16 23:35:47,266 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=658, PETRI_PLACES=209, PETRI_TRANSITIONS=202} [2024-11-16 23:35:47,269 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 47 predicate places. [2024-11-16 23:35:47,269 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 202 transitions, 658 flow [2024-11-16 23:35:47,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 150.0) internal successors, (2700), 18 states have internal predecessors, (2700), 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) [2024-11-16 23:35:47,271 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:47,271 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 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] [2024-11-16 23:35:47,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-16 23:35:47,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:35:47,472 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 23:35:47,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:47,473 INFO L85 PathProgramCache]: Analyzing trace with hash 80573272, now seen corresponding path program 2 times [2024-11-16 23:35:47,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:47,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954120689] [2024-11-16 23:35:47,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:47,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:47,754 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:47,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:47,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954120689] [2024-11-16 23:35:47,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954120689] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:35:47,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145835036] [2024-11-16 23:35:47,757 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 23:35:47,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:35:47,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:35:47,759 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) [2024-11-16 23:35:47,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 23:35:47,827 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-16 23:35:47,828 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 23:35:47,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-16 23:35:47,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:35:47,843 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 11 treesize of output 7 [2024-11-16 23:35:47,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-16 23:35:47,954 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:35:47,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-16 23:35:48,032 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:35:48,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-16 23:35:48,072 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-16 23:35:48,072 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:35:48,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145835036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:48,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:35:48,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-16 23:35:48,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638506676] [2024-11-16 23:35:48,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:48,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:35:48,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:48,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:35:48,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-16 23:35:48,194 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 165 [2024-11-16 23:35:48,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 202 transitions, 658 flow. Second operand has 6 states, 6 states have (on average 140.5) internal successors, (843), 6 states have internal predecessors, (843), 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) [2024-11-16 23:35:48,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:48,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 165 [2024-11-16 23:35:48,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:48,363 INFO L124 PetriNetUnfolderBase]: 206/1130 cut-off events. [2024-11-16 23:35:48,364 INFO L125 PetriNetUnfolderBase]: For 238/258 co-relation queries the response was YES. [2024-11-16 23:35:48,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1919 conditions, 1130 events. 206/1130 cut-off events. For 238/258 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6804 event pairs, 62 based on Foata normal form. 5/1073 useless extension candidates. Maximal degree in co-relation 1902. Up to 330 conditions per place. [2024-11-16 23:35:48,368 INFO L140 encePairwiseOnDemand]: 154/165 looper letters, 47 selfloop transitions, 30 changer transitions 0/239 dead transitions. [2024-11-16 23:35:48,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 239 transitions, 928 flow [2024-11-16 23:35:48,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:35:48,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:35:48,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 887 transitions. [2024-11-16 23:35:48,370 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.895959595959596 [2024-11-16 23:35:48,370 INFO L175 Difference]: Start difference. First operand has 209 places, 202 transitions, 658 flow. Second operand 6 states and 887 transitions. [2024-11-16 23:35:48,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 239 transitions, 928 flow [2024-11-16 23:35:48,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 239 transitions, 904 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-16 23:35:48,375 INFO L231 Difference]: Finished difference. Result has 213 places, 231 transitions, 884 flow [2024-11-16 23:35:48,375 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=884, PETRI_PLACES=213, PETRI_TRANSITIONS=231} [2024-11-16 23:35:48,376 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 51 predicate places. [2024-11-16 23:35:48,376 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 231 transitions, 884 flow [2024-11-16 23:35:48,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 140.5) internal successors, (843), 6 states have internal predecessors, (843), 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) [2024-11-16 23:35:48,377 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:48,377 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:35:48,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 23:35:48,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:35:48,581 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 23:35:48,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:48,581 INFO L85 PathProgramCache]: Analyzing trace with hash 781112546, now seen corresponding path program 1 times [2024-11-16 23:35:48,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:48,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483063204] [2024-11-16 23:35:48,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:48,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:48,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:48,844 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:48,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:48,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483063204] [2024-11-16 23:35:48,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483063204] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:35:48,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552434931] [2024-11-16 23:35:48,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:48,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:35:48,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:35:48,847 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) [2024-11-16 23:35:48,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 23:35:48,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:48,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-16 23:35:48,938 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:35:48,998 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:48,998 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:35:49,160 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:49,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552434931] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:35:49,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:35:49,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-16 23:35:49,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924038391] [2024-11-16 23:35:49,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:35:49,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-16 23:35:49,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:49,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-16 23:35:49,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-16 23:35:49,193 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 165 [2024-11-16 23:35:49,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 231 transitions, 884 flow. Second operand has 23 states, 23 states have (on average 150.08695652173913) internal successors, (3452), 23 states have internal predecessors, (3452), 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) [2024-11-16 23:35:49,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:49,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 165 [2024-11-16 23:35:49,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:49,632 INFO L124 PetriNetUnfolderBase]: 114/867 cut-off events. [2024-11-16 23:35:49,632 INFO L125 PetriNetUnfolderBase]: For 425/438 co-relation queries the response was YES. [2024-11-16 23:35:49,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1603 conditions, 867 events. 114/867 cut-off events. For 425/438 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4394 event pairs, 14 based on Foata normal form. 8/837 useless extension candidates. Maximal degree in co-relation 1581. Up to 84 conditions per place. [2024-11-16 23:35:49,636 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 21 selfloop transitions, 30 changer transitions 0/248 dead transitions. [2024-11-16 23:35:49,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 248 transitions, 1108 flow [2024-11-16 23:35:49,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-16 23:35:49,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-16 23:35:49,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4494 transitions. [2024-11-16 23:35:49,643 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9078787878787878 [2024-11-16 23:35:49,643 INFO L175 Difference]: Start difference. First operand has 213 places, 231 transitions, 884 flow. Second operand 30 states and 4494 transitions. [2024-11-16 23:35:49,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 248 transitions, 1108 flow [2024-11-16 23:35:49,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 248 transitions, 1108 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:35:49,649 INFO L231 Difference]: Finished difference. Result has 246 places, 241 transitions, 1036 flow [2024-11-16 23:35:49,649 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1036, PETRI_PLACES=246, PETRI_TRANSITIONS=241} [2024-11-16 23:35:49,650 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 84 predicate places. [2024-11-16 23:35:49,651 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 241 transitions, 1036 flow [2024-11-16 23:35:49,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 150.08695652173913) internal successors, (3452), 23 states have internal predecessors, (3452), 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) [2024-11-16 23:35:49,652 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:49,653 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 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] [2024-11-16 23:35:49,666 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 23:35:49,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:35:49,857 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 23:35:49,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:49,857 INFO L85 PathProgramCache]: Analyzing trace with hash 2070507911, now seen corresponding path program 2 times [2024-11-16 23:35:49,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:49,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334289708] [2024-11-16 23:35:49,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:49,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:50,356 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-16 23:35:50,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:50,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334289708] [2024-11-16 23:35:50,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334289708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:50,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:35:50,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:35:50,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543979949] [2024-11-16 23:35:50,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:50,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:35:50,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:50,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:35:50,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:35:50,439 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 165 [2024-11-16 23:35:50,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 241 transitions, 1036 flow. Second operand has 6 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 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) [2024-11-16 23:35:50,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:50,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 165 [2024-11-16 23:35:50,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:50,735 INFO L124 PetriNetUnfolderBase]: 422/1696 cut-off events. [2024-11-16 23:35:50,736 INFO L125 PetriNetUnfolderBase]: For 996/1038 co-relation queries the response was YES. [2024-11-16 23:35:50,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3707 conditions, 1696 events. 422/1696 cut-off events. For 996/1038 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 10772 event pairs, 107 based on Foata normal form. 12/1616 useless extension candidates. Maximal degree in co-relation 3681. Up to 718 conditions per place. [2024-11-16 23:35:50,743 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 76 selfloop transitions, 57 changer transitions 0/296 dead transitions. [2024-11-16 23:35:50,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 296 transitions, 1546 flow [2024-11-16 23:35:50,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:35:50,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:35:50,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 873 transitions. [2024-11-16 23:35:50,745 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8818181818181818 [2024-11-16 23:35:50,745 INFO L175 Difference]: Start difference. First operand has 246 places, 241 transitions, 1036 flow. Second operand 6 states and 873 transitions. [2024-11-16 23:35:50,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 296 transitions, 1546 flow [2024-11-16 23:35:50,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 296 transitions, 1500 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-16 23:35:50,752 INFO L231 Difference]: Finished difference. Result has 238 places, 288 transitions, 1488 flow [2024-11-16 23:35:50,753 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=990, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1488, PETRI_PLACES=238, PETRI_TRANSITIONS=288} [2024-11-16 23:35:50,755 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 76 predicate places. [2024-11-16 23:35:50,755 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 288 transitions, 1488 flow [2024-11-16 23:35:50,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 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) [2024-11-16 23:35:50,755 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:50,756 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 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] [2024-11-16 23:35:50,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:35:50,756 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 23:35:50,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:50,756 INFO L85 PathProgramCache]: Analyzing trace with hash 951646209, now seen corresponding path program 1 times [2024-11-16 23:35:50,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:50,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115872230] [2024-11-16 23:35:50,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:50,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:51,100 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-16 23:35:51,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:51,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115872230] [2024-11-16 23:35:51,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115872230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:51,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:35:51,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:35:51,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694554252] [2024-11-16 23:35:51,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:51,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:35:51,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:51,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:35:51,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:35:51,255 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 165 [2024-11-16 23:35:51,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 288 transitions, 1488 flow. Second operand has 6 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 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) [2024-11-16 23:35:51,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:51,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 165 [2024-11-16 23:35:51,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:51,687 INFO L124 PetriNetUnfolderBase]: 542/2148 cut-off events. [2024-11-16 23:35:51,687 INFO L125 PetriNetUnfolderBase]: For 2340/2396 co-relation queries the response was YES. [2024-11-16 23:35:51,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5316 conditions, 2148 events. 542/2148 cut-off events. For 2340/2396 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 15026 event pairs, 113 based on Foata normal form. 13/2075 useless extension candidates. Maximal degree in co-relation 5285. Up to 894 conditions per place. [2024-11-16 23:35:51,701 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 113 selfloop transitions, 71 changer transitions 0/349 dead transitions. [2024-11-16 23:35:51,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 349 transitions, 2210 flow [2024-11-16 23:35:51,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:35:51,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:35:51,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 873 transitions. [2024-11-16 23:35:51,707 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8818181818181818 [2024-11-16 23:35:51,707 INFO L175 Difference]: Start difference. First operand has 238 places, 288 transitions, 1488 flow. Second operand 6 states and 873 transitions. [2024-11-16 23:35:51,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 349 transitions, 2210 flow [2024-11-16 23:35:51,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 349 transitions, 2146 flow, removed 32 selfloop flow, removed 0 redundant places. [2024-11-16 23:35:51,756 INFO L231 Difference]: Finished difference. Result has 248 places, 341 transitions, 2100 flow [2024-11-16 23:35:51,756 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=1430, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2100, PETRI_PLACES=248, PETRI_TRANSITIONS=341} [2024-11-16 23:35:51,757 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 86 predicate places. [2024-11-16 23:35:51,757 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 341 transitions, 2100 flow [2024-11-16 23:35:51,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 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) [2024-11-16 23:35:51,758 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:51,758 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:35:51,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:35:51,758 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 23:35:51,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:51,758 INFO L85 PathProgramCache]: Analyzing trace with hash -990597585, now seen corresponding path program 1 times [2024-11-16 23:35:51,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:51,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278499397] [2024-11-16 23:35:51,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:51,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:51,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:52,128 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-16 23:35:52,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:52,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278499397] [2024-11-16 23:35:52,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278499397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:52,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:35:52,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 23:35:52,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144275409] [2024-11-16 23:35:52,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:52,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 23:35:52,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:52,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 23:35:52,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:35:53,078 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-16 23:35:53,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 341 transitions, 2100 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:35:53,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:53,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-16 23:35:53,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:53,769 INFO L124 PetriNetUnfolderBase]: 1065/4173 cut-off events. [2024-11-16 23:35:53,770 INFO L125 PetriNetUnfolderBase]: For 5524/5664 co-relation queries the response was YES. [2024-11-16 23:35:53,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11412 conditions, 4173 events. 1065/4173 cut-off events. For 5524/5664 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 33007 event pairs, 148 based on Foata normal form. 45/4188 useless extension candidates. Maximal degree in co-relation 11376. Up to 568 conditions per place. [2024-11-16 23:35:53,798 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 68 selfloop transitions, 15 changer transitions 3/400 dead transitions. [2024-11-16 23:35:53,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 400 transitions, 2390 flow [2024-11-16 23:35:53,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:35:53,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 23:35:53,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1304 transitions. [2024-11-16 23:35:53,801 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8781144781144781 [2024-11-16 23:35:53,801 INFO L175 Difference]: Start difference. First operand has 248 places, 341 transitions, 2100 flow. Second operand 9 states and 1304 transitions. [2024-11-16 23:35:53,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 400 transitions, 2390 flow [2024-11-16 23:35:53,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 400 transitions, 2308 flow, removed 41 selfloop flow, removed 0 redundant places. [2024-11-16 23:35:53,832 INFO L231 Difference]: Finished difference. Result has 263 places, 356 transitions, 2136 flow [2024-11-16 23:35:53,833 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2018, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2136, PETRI_PLACES=263, PETRI_TRANSITIONS=356} [2024-11-16 23:35:53,833 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 101 predicate places. [2024-11-16 23:35:53,833 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 356 transitions, 2136 flow [2024-11-16 23:35:53,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:35:53,834 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:53,834 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:35:53,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 23:35:53,834 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 23:35:53,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:53,835 INFO L85 PathProgramCache]: Analyzing trace with hash 17553645, now seen corresponding path program 2 times [2024-11-16 23:35:53,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:53,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419002859] [2024-11-16 23:35:53,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:53,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:54,212 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-16 23:35:54,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:54,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419002859] [2024-11-16 23:35:54,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419002859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:54,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:35:54,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 23:35:54,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228270049] [2024-11-16 23:35:54,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:54,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 23:35:54,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:54,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 23:35:54,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:35:55,038 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-16 23:35:55,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 356 transitions, 2136 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:35:55,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:55,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-16 23:35:55,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:56,456 INFO L124 PetriNetUnfolderBase]: 2043/7701 cut-off events. [2024-11-16 23:35:56,456 INFO L125 PetriNetUnfolderBase]: For 11011/11301 co-relation queries the response was YES. [2024-11-16 23:35:56,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22474 conditions, 7701 events. 2043/7701 cut-off events. For 11011/11301 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 69189 event pairs, 280 based on Foata normal form. 87/7733 useless extension candidates. Maximal degree in co-relation 22430. Up to 1204 conditions per place. [2024-11-16 23:35:56,516 INFO L140 encePairwiseOnDemand]: 151/165 looper letters, 107 selfloop transitions, 20 changer transitions 6/447 dead transitions. [2024-11-16 23:35:56,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 447 transitions, 2802 flow [2024-11-16 23:35:56,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:35:56,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 23:35:56,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1303 transitions. [2024-11-16 23:35:56,519 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8774410774410775 [2024-11-16 23:35:56,519 INFO L175 Difference]: Start difference. First operand has 263 places, 356 transitions, 2136 flow. Second operand 9 states and 1303 transitions. [2024-11-16 23:35:56,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 447 transitions, 2802 flow [2024-11-16 23:35:56,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 447 transitions, 2802 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:35:56,572 INFO L231 Difference]: Finished difference. Result has 278 places, 373 transitions, 2316 flow [2024-11-16 23:35:56,573 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2136, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2316, PETRI_PLACES=278, PETRI_TRANSITIONS=373} [2024-11-16 23:35:56,573 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 116 predicate places. [2024-11-16 23:35:56,573 INFO L471 AbstractCegarLoop]: Abstraction has has 278 places, 373 transitions, 2316 flow [2024-11-16 23:35:56,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:35:56,574 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:56,574 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:35:56,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 23:35:56,574 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 23:35:56,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:56,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1903725223, now seen corresponding path program 3 times [2024-11-16 23:35:56,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:56,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998384284] [2024-11-16 23:35:56,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:56,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:57,033 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-16 23:35:57,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:57,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998384284] [2024-11-16 23:35:57,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998384284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:57,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:35:57,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 23:35:57,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522858270] [2024-11-16 23:35:57,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:57,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 23:35:57,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:57,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 23:35:57,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:35:58,701 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-16 23:35:58,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 373 transitions, 2316 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:35:58,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:58,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-16 23:35:58,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:00,372 INFO L124 PetriNetUnfolderBase]: 2340/8746 cut-off events. [2024-11-16 23:36:00,373 INFO L125 PetriNetUnfolderBase]: For 14765/15187 co-relation queries the response was YES. [2024-11-16 23:36:00,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26882 conditions, 8746 events. 2340/8746 cut-off events. For 14765/15187 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 79843 event pairs, 290 based on Foata normal form. 95/8779 useless extension candidates. Maximal degree in co-relation 26830. Up to 1318 conditions per place. [2024-11-16 23:36:00,438 INFO L140 encePairwiseOnDemand]: 151/165 looper letters, 119 selfloop transitions, 22 changer transitions 2/457 dead transitions. [2024-11-16 23:36:00,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 457 transitions, 3100 flow [2024-11-16 23:36:00,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:36:00,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 23:36:00,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1308 transitions. [2024-11-16 23:36:00,444 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8808080808080808 [2024-11-16 23:36:00,444 INFO L175 Difference]: Start difference. First operand has 278 places, 373 transitions, 2316 flow. Second operand 9 states and 1308 transitions. [2024-11-16 23:36:00,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 457 transitions, 3100 flow [2024-11-16 23:36:00,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 457 transitions, 3062 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-11-16 23:36:00,521 INFO L231 Difference]: Finished difference. Result has 291 places, 385 transitions, 2485 flow [2024-11-16 23:36:00,522 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2302, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2485, PETRI_PLACES=291, PETRI_TRANSITIONS=385} [2024-11-16 23:36:00,523 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 129 predicate places. [2024-11-16 23:36:00,523 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 385 transitions, 2485 flow [2024-11-16 23:36:00,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:36:00,524 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:00,524 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:36:00,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 23:36:00,524 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 23:36:00,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:00,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1702366677, now seen corresponding path program 4 times [2024-11-16 23:36:00,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:00,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573826782] [2024-11-16 23:36:00,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:00,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:00,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:00,964 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-16 23:36:00,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:00,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573826782] [2024-11-16 23:36:00,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573826782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:00,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:00,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 23:36:00,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765006910] [2024-11-16 23:36:00,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:00,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 23:36:00,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:00,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 23:36:00,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:36:01,908 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-16 23:36:01,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 385 transitions, 2485 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:36:01,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:01,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-16 23:36:01,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:03,943 INFO L124 PetriNetUnfolderBase]: 2637/9748 cut-off events. [2024-11-16 23:36:03,944 INFO L125 PetriNetUnfolderBase]: For 18474/18950 co-relation queries the response was YES. [2024-11-16 23:36:04,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30670 conditions, 9748 events. 2637/9748 cut-off events. For 18474/18950 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 90960 event pairs, 301 based on Foata normal form. 109/9788 useless extension candidates. Maximal degree in co-relation 30612. Up to 1577 conditions per place. [2024-11-16 23:36:04,092 INFO L140 encePairwiseOnDemand]: 151/165 looper letters, 130 selfloop transitions, 27 changer transitions 4/475 dead transitions. [2024-11-16 23:36:04,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 475 transitions, 3434 flow [2024-11-16 23:36:04,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:36:04,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 23:36:04,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1308 transitions. [2024-11-16 23:36:04,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8808080808080808 [2024-11-16 23:36:04,094 INFO L175 Difference]: Start difference. First operand has 291 places, 385 transitions, 2485 flow. Second operand 9 states and 1308 transitions. [2024-11-16 23:36:04,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 475 transitions, 3434 flow [2024-11-16 23:36:04,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 475 transitions, 3355 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-16 23:36:04,171 INFO L231 Difference]: Finished difference. Result has 301 places, 397 transitions, 2661 flow [2024-11-16 23:36:04,172 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2459, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2661, PETRI_PLACES=301, PETRI_TRANSITIONS=397} [2024-11-16 23:36:04,172 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 139 predicate places. [2024-11-16 23:36:04,173 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 397 transitions, 2661 flow [2024-11-16 23:36:04,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:36:04,174 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:04,174 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:36:04,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 23:36:04,174 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 23:36:04,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:04,175 INFO L85 PathProgramCache]: Analyzing trace with hash -997278203, now seen corresponding path program 5 times [2024-11-16 23:36:04,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:04,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827868732] [2024-11-16 23:36:04,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:04,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:04,454 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-16 23:36:04,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:04,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827868732] [2024-11-16 23:36:04,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827868732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:04,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:04,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 23:36:04,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812687436] [2024-11-16 23:36:04,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:04,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 23:36:04,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:04,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 23:36:04,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:36:05,384 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-16 23:36:05,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 397 transitions, 2661 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:36:05,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:05,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-16 23:36:05,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:07,555 INFO L124 PetriNetUnfolderBase]: 2967/10911 cut-off events. [2024-11-16 23:36:07,555 INFO L125 PetriNetUnfolderBase]: For 23461/24017 co-relation queries the response was YES. [2024-11-16 23:36:07,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35129 conditions, 10911 events. 2967/10911 cut-off events. For 23461/24017 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 104527 event pairs, 300 based on Foata normal form. 102/10922 useless extension candidates. Maximal degree in co-relation 35066. Up to 1708 conditions per place. [2024-11-16 23:36:07,664 INFO L140 encePairwiseOnDemand]: 151/165 looper letters, 134 selfloop transitions, 29 changer transitions 1/478 dead transitions. [2024-11-16 23:36:07,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 478 transitions, 3640 flow [2024-11-16 23:36:07,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:36:07,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 23:36:07,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1311 transitions. [2024-11-16 23:36:07,670 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8828282828282829 [2024-11-16 23:36:07,671 INFO L175 Difference]: Start difference. First operand has 301 places, 397 transitions, 2661 flow. Second operand 9 states and 1311 transitions. [2024-11-16 23:36:07,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 478 transitions, 3640 flow [2024-11-16 23:36:07,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 478 transitions, 3549 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-11-16 23:36:07,979 INFO L231 Difference]: Finished difference. Result has 312 places, 412 transitions, 2899 flow [2024-11-16 23:36:07,980 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2620, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2899, PETRI_PLACES=312, PETRI_TRANSITIONS=412} [2024-11-16 23:36:07,980 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 150 predicate places. [2024-11-16 23:36:07,980 INFO L471 AbstractCegarLoop]: Abstraction has has 312 places, 412 transitions, 2899 flow [2024-11-16 23:36:07,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:36:07,981 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:07,981 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:36:07,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 23:36:07,981 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 23:36:07,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:07,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1505694603, now seen corresponding path program 6 times [2024-11-16 23:36:07,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:07,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655501408] [2024-11-16 23:36:07,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:07,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:08,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:08,242 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-16 23:36:08,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:08,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655501408] [2024-11-16 23:36:08,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655501408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:08,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:08,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 23:36:08,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544604161] [2024-11-16 23:36:08,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:08,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 23:36:08,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:08,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 23:36:08,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:36:09,150 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-16 23:36:09,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 412 transitions, 2899 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:36:09,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:09,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-16 23:36:09,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:11,523 INFO L124 PetriNetUnfolderBase]: 3289/12097 cut-off events. [2024-11-16 23:36:11,524 INFO L125 PetriNetUnfolderBase]: For 29639/30273 co-relation queries the response was YES. [2024-11-16 23:36:11,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39800 conditions, 12097 events. 3289/12097 cut-off events. For 29639/30273 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 119008 event pairs, 341 based on Foata normal form. 110/12121 useless extension candidates. Maximal degree in co-relation 39731. Up to 1963 conditions per place. [2024-11-16 23:36:11,612 INFO L140 encePairwiseOnDemand]: 151/165 looper letters, 148 selfloop transitions, 34 changer transitions 2/498 dead transitions. [2024-11-16 23:36:11,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 498 transitions, 4023 flow [2024-11-16 23:36:11,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:36:11,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 23:36:11,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1311 transitions. [2024-11-16 23:36:11,614 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8828282828282829 [2024-11-16 23:36:11,614 INFO L175 Difference]: Start difference. First operand has 312 places, 412 transitions, 2899 flow. Second operand 9 states and 1311 transitions. [2024-11-16 23:36:11,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 498 transitions, 4023 flow [2024-11-16 23:36:11,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 498 transitions, 3927 flow, removed 27 selfloop flow, removed 2 redundant places. [2024-11-16 23:36:11,743 INFO L231 Difference]: Finished difference. Result has 324 places, 427 transitions, 3142 flow [2024-11-16 23:36:11,744 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2840, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3142, PETRI_PLACES=324, PETRI_TRANSITIONS=427} [2024-11-16 23:36:11,744 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 162 predicate places. [2024-11-16 23:36:11,744 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 427 transitions, 3142 flow [2024-11-16 23:36:11,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:36:11,745 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:11,745 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:36:11,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 23:36:11,745 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 23:36:11,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:11,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1321904129, now seen corresponding path program 7 times [2024-11-16 23:36:11,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:11,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491233137] [2024-11-16 23:36:11,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:11,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:12,065 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-16 23:36:12,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:12,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491233137] [2024-11-16 23:36:12,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491233137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:12,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:12,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 23:36:12,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138851488] [2024-11-16 23:36:12,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:12,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 23:36:12,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:12,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 23:36:12,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:36:12,926 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-16 23:36:12,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 427 transitions, 3142 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:36:12,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:12,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-16 23:36:12,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:15,584 INFO L124 PetriNetUnfolderBase]: 3633/13314 cut-off events. [2024-11-16 23:36:15,584 INFO L125 PetriNetUnfolderBase]: For 37928/38635 co-relation queries the response was YES. [2024-11-16 23:36:15,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45024 conditions, 13314 events. 3633/13314 cut-off events. For 37928/38635 co-relation queries the response was YES. Maximal size of possible extension queue 413. Compared 133856 event pairs, 416 based on Foata normal form. 99/13303 useless extension candidates. Maximal degree in co-relation 44949. Up to 2114 conditions per place. [2024-11-16 23:36:15,695 INFO L140 encePairwiseOnDemand]: 151/165 looper letters, 148 selfloop transitions, 36 changer transitions 0/498 dead transitions. [2024-11-16 23:36:15,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 498 transitions, 4239 flow [2024-11-16 23:36:15,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:36:15,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 23:36:15,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1313 transitions. [2024-11-16 23:36:15,696 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8841750841750842 [2024-11-16 23:36:15,697 INFO L175 Difference]: Start difference. First operand has 324 places, 427 transitions, 3142 flow. Second operand 9 states and 1313 transitions. [2024-11-16 23:36:15,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 498 transitions, 4239 flow [2024-11-16 23:36:15,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 498 transitions, 4139 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-16 23:36:15,859 INFO L231 Difference]: Finished difference. Result has 337 places, 446 transitions, 3492 flow [2024-11-16 23:36:15,859 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=3064, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3492, PETRI_PLACES=337, PETRI_TRANSITIONS=446} [2024-11-16 23:36:15,860 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 175 predicate places. [2024-11-16 23:36:15,860 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 446 transitions, 3492 flow [2024-11-16 23:36:15,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:36:15,860 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:15,860 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:36:15,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 23:36:15,861 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 23:36:15,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:15,861 INFO L85 PathProgramCache]: Analyzing trace with hash 975448239, now seen corresponding path program 8 times [2024-11-16 23:36:15,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:15,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665930459] [2024-11-16 23:36:15,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:15,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:16,364 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-16 23:36:16,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:16,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665930459] [2024-11-16 23:36:16,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665930459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:16,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:16,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 23:36:16,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594403913] [2024-11-16 23:36:16,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:16,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 23:36:16,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:16,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 23:36:16,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:36:16,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-16 23:36:16,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 446 transitions, 3492 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:36:16,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:16,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-16 23:36:16,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:19,802 INFO L124 PetriNetUnfolderBase]: 4229/15326 cut-off events. [2024-11-16 23:36:19,802 INFO L125 PetriNetUnfolderBase]: For 49068/49909 co-relation queries the response was YES. [2024-11-16 23:36:19,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52867 conditions, 15326 events. 4229/15326 cut-off events. For 49068/49909 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 159917 event pairs, 429 based on Foata normal form. 128/15338 useless extension candidates. Maximal degree in co-relation 52785. Up to 2514 conditions per place. [2024-11-16 23:36:19,915 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 169 selfloop transitions, 45 changer transitions 0/528 dead transitions. [2024-11-16 23:36:19,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 528 transitions, 4795 flow [2024-11-16 23:36:19,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:36:19,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 23:36:19,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1315 transitions. [2024-11-16 23:36:19,921 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8855218855218855 [2024-11-16 23:36:19,921 INFO L175 Difference]: Start difference. First operand has 337 places, 446 transitions, 3492 flow. Second operand 9 states and 1315 transitions. [2024-11-16 23:36:19,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 528 transitions, 4795 flow [2024-11-16 23:36:20,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 528 transitions, 4691 flow, removed 52 selfloop flow, removed 0 redundant places. [2024-11-16 23:36:20,134 INFO L231 Difference]: Finished difference. Result has 352 places, 464 transitions, 3844 flow [2024-11-16 23:36:20,135 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=3388, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3844, PETRI_PLACES=352, PETRI_TRANSITIONS=464} [2024-11-16 23:36:20,135 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 190 predicate places. [2024-11-16 23:36:20,135 INFO L471 AbstractCegarLoop]: Abstraction has has 352 places, 464 transitions, 3844 flow [2024-11-16 23:36:20,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:36:20,136 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:20,136 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:36:20,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 23:36:20,136 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 23:36:20,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:20,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1974693423, now seen corresponding path program 9 times [2024-11-16 23:36:20,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:20,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52279622] [2024-11-16 23:36:20,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:20,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:20,406 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-16 23:36:20,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:20,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52279622] [2024-11-16 23:36:20,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52279622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:20,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:20,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 23:36:20,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106444031] [2024-11-16 23:36:20,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:20,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 23:36:20,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:20,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 23:36:20,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:36:20,962 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-16 23:36:20,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 464 transitions, 3844 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:36:20,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:20,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-16 23:36:20,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:24,371 INFO L124 PetriNetUnfolderBase]: 4819/17317 cut-off events. [2024-11-16 23:36:24,371 INFO L125 PetriNetUnfolderBase]: For 60864/61824 co-relation queries the response was YES. [2024-11-16 23:36:24,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61001 conditions, 17317 events. 4819/17317 cut-off events. For 60864/61824 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 186357 event pairs, 472 based on Foata normal form. 146/17324 useless extension candidates. Maximal degree in co-relation 60911. Up to 2855 conditions per place. [2024-11-16 23:36:24,545 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 184 selfloop transitions, 46 changer transitions 0/544 dead transitions. [2024-11-16 23:36:24,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 544 transitions, 5102 flow [2024-11-16 23:36:24,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:36:24,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 23:36:24,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1315 transitions. [2024-11-16 23:36:24,548 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8855218855218855 [2024-11-16 23:36:24,548 INFO L175 Difference]: Start difference. First operand has 352 places, 464 transitions, 3844 flow. Second operand 9 states and 1315 transitions. [2024-11-16 23:36:24,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 544 transitions, 5102 flow [2024-11-16 23:36:24,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 544 transitions, 5016 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-11-16 23:36:24,985 INFO L231 Difference]: Finished difference. Result has 366 places, 481 transitions, 4167 flow [2024-11-16 23:36:24,986 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=3758, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4167, PETRI_PLACES=366, PETRI_TRANSITIONS=481} [2024-11-16 23:36:24,987 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 204 predicate places. [2024-11-16 23:36:24,987 INFO L471 AbstractCegarLoop]: Abstraction has has 366 places, 481 transitions, 4167 flow [2024-11-16 23:36:24,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:36:24,987 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:24,988 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:36:24,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 23:36:24,988 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 23:36:24,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:24,988 INFO L85 PathProgramCache]: Analyzing trace with hash -232371997, now seen corresponding path program 10 times [2024-11-16 23:36:24,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:24,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896520340] [2024-11-16 23:36:24,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:24,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:25,243 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-16 23:36:25,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:25,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896520340] [2024-11-16 23:36:25,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896520340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:25,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:25,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 23:36:25,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577513302] [2024-11-16 23:36:25,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:25,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 23:36:25,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:25,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 23:36:25,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:36:26,032 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-16 23:36:26,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 481 transitions, 4167 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:36:26,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:26,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-16 23:36:26,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:29,816 INFO L124 PetriNetUnfolderBase]: 5107/18237 cut-off events. [2024-11-16 23:36:29,816 INFO L125 PetriNetUnfolderBase]: For 68972/70005 co-relation queries the response was YES. [2024-11-16 23:36:29,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65146 conditions, 18237 events. 5107/18237 cut-off events. For 68972/70005 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 198912 event pairs, 498 based on Foata normal form. 164/18255 useless extension candidates. Maximal degree in co-relation 65049. Up to 3036 conditions per place. [2024-11-16 23:36:29,971 INFO L140 encePairwiseOnDemand]: 149/165 looper letters, 183 selfloop transitions, 53 changer transitions 0/550 dead transitions. [2024-11-16 23:36:29,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 550 transitions, 5469 flow [2024-11-16 23:36:29,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:36:29,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 23:36:29,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1317 transitions. [2024-11-16 23:36:29,973 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8868686868686869 [2024-11-16 23:36:29,973 INFO L175 Difference]: Start difference. First operand has 366 places, 481 transitions, 4167 flow. Second operand 9 states and 1317 transitions. [2024-11-16 23:36:29,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 550 transitions, 5469 flow [2024-11-16 23:36:30,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 550 transitions, 5316 flow, removed 57 selfloop flow, removed 2 redundant places. [2024-11-16 23:36:30,305 INFO L231 Difference]: Finished difference. Result has 376 places, 495 transitions, 4446 flow [2024-11-16 23:36:30,306 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=4070, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4446, PETRI_PLACES=376, PETRI_TRANSITIONS=495} [2024-11-16 23:36:30,306 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 214 predicate places. [2024-11-16 23:36:30,306 INFO L471 AbstractCegarLoop]: Abstraction has has 376 places, 495 transitions, 4446 flow [2024-11-16 23:36:30,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:36:30,307 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:30,307 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:36:30,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 23:36:30,307 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 23:36:30,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:30,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1802100499, now seen corresponding path program 11 times [2024-11-16 23:36:30,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:30,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675686652] [2024-11-16 23:36:30,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:30,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:30,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:30,525 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-16 23:36:30,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:30,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675686652] [2024-11-16 23:36:30,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675686652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:30,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:30,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 23:36:30,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791785496] [2024-11-16 23:36:30,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:30,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 23:36:30,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:30,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 23:36:30,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:36:31,303 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-16 23:36:31,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 495 transitions, 4446 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:36:31,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:31,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-16 23:36:31,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:35,052 INFO L124 PetriNetUnfolderBase]: 5111/18284 cut-off events. [2024-11-16 23:36:35,053 INFO L125 PetriNetUnfolderBase]: For 73944/75089 co-relation queries the response was YES. [2024-11-16 23:36:35,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65998 conditions, 18284 events. 5111/18284 cut-off events. For 73944/75089 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 199656 event pairs, 506 based on Foata normal form. 171/18315 useless extension candidates. Maximal degree in co-relation 65897. Up to 3047 conditions per place. [2024-11-16 23:36:35,238 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 186 selfloop transitions, 57 changer transitions 0/557 dead transitions. [2024-11-16 23:36:35,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 557 transitions, 5672 flow [2024-11-16 23:36:35,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:36:35,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 23:36:35,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1318 transitions. [2024-11-16 23:36:35,240 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8875420875420875 [2024-11-16 23:36:35,240 INFO L175 Difference]: Start difference. First operand has 376 places, 495 transitions, 4446 flow. Second operand 9 states and 1318 transitions. [2024-11-16 23:36:35,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 557 transitions, 5672 flow [2024-11-16 23:36:35,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 557 transitions, 5512 flow, removed 39 selfloop flow, removed 4 redundant places. [2024-11-16 23:36:35,590 INFO L231 Difference]: Finished difference. Result has 385 places, 507 transitions, 4716 flow [2024-11-16 23:36:35,590 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=4310, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=495, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4716, PETRI_PLACES=385, PETRI_TRANSITIONS=507} [2024-11-16 23:36:35,591 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 223 predicate places. [2024-11-16 23:36:35,591 INFO L471 AbstractCegarLoop]: Abstraction has has 385 places, 507 transitions, 4716 flow [2024-11-16 23:36:35,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:36:35,592 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:35,592 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:36:35,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 23:36:35,592 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 23:36:35,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:35,592 INFO L85 PathProgramCache]: Analyzing trace with hash -2092501853, now seen corresponding path program 12 times [2024-11-16 23:36:35,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:35,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000623879] [2024-11-16 23:36:35,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:35,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:36,085 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-16 23:36:36,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:36,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000623879] [2024-11-16 23:36:36,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000623879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:36,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:36,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 23:36:36,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062517851] [2024-11-16 23:36:36,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:36,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 23:36:36,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:36,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 23:36:36,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:36:36,628 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-16 23:36:36,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 507 transitions, 4716 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:36:36,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:36,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-16 23:36:36,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:36:40,456 INFO L124 PetriNetUnfolderBase]: 5107/18257 cut-off events. [2024-11-16 23:36:40,456 INFO L125 PetriNetUnfolderBase]: For 77849/79015 co-relation queries the response was YES. [2024-11-16 23:36:40,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66374 conditions, 18257 events. 5107/18257 cut-off events. For 77849/79015 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 199137 event pairs, 499 based on Foata normal form. 167/18273 useless extension candidates. Maximal degree in co-relation 66268. Up to 3041 conditions per place. [2024-11-16 23:36:40,842 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 198 selfloop transitions, 52 changer transitions 0/564 dead transitions. [2024-11-16 23:36:40,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 564 transitions, 5920 flow [2024-11-16 23:36:40,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:36:40,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 23:36:40,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1321 transitions. [2024-11-16 23:36:40,843 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8895622895622896 [2024-11-16 23:36:40,844 INFO L175 Difference]: Start difference. First operand has 385 places, 507 transitions, 4716 flow. Second operand 9 states and 1321 transitions. [2024-11-16 23:36:40,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 564 transitions, 5920 flow [2024-11-16 23:36:41,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 564 transitions, 5710 flow, removed 75 selfloop flow, removed 3 redundant places. [2024-11-16 23:36:41,197 INFO L231 Difference]: Finished difference. Result has 394 places, 515 transitions, 4854 flow [2024-11-16 23:36:41,198 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=4580, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=507, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4854, PETRI_PLACES=394, PETRI_TRANSITIONS=515} [2024-11-16 23:36:41,198 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 232 predicate places. [2024-11-16 23:36:41,198 INFO L471 AbstractCegarLoop]: Abstraction has has 394 places, 515 transitions, 4854 flow [2024-11-16 23:36:41,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:36:41,199 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:36:41,199 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:36:41,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 23:36:41,199 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 23:36:41,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:36:41,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1147119081, now seen corresponding path program 13 times [2024-11-16 23:36:41,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:36:41,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852387986] [2024-11-16 23:36:41,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:36:41,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:36:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:36:41,392 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-16 23:36:41,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:36:41,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852387986] [2024-11-16 23:36:41,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852387986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:36:41,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:36:41,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 23:36:41,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004127964] [2024-11-16 23:36:41,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:36:41,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 23:36:41,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:36:41,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 23:36:41,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:36:41,924 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 165 [2024-11-16 23:36:41,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 515 transitions, 4854 flow. Second operand has 9 states, 9 states have (on average 136.77777777777777) internal successors, (1231), 9 states have internal predecessors, (1231), 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) [2024-11-16 23:36:41,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:36:41,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 165 [2024-11-16 23:36:41,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand