./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8be7027f 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/weaver/popl20-bad-counter-queue.wvr.c -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 387879bf92b16ead997b40b3e249348f8a6b399496756f9bc3c41b6dc3c21353 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 12:38:54,756 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 12:38:54,831 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-12 12:38:54,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 12:38:54,839 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 12:38:54,868 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 12:38:54,868 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 12:38:54,869 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 12:38:54,870 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 12:38:54,871 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 12:38:54,872 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 12:38:54,873 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 12:38:54,873 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 12:38:54,874 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 12:38:54,874 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 12:38:54,878 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 12:38:54,878 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 12:38:54,879 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 12:38:54,879 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 12:38:54,879 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 12:38:54,879 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 12:38:54,880 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 12:38:54,880 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-12 12:38:54,880 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 12:38:54,880 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 12:38:54,881 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 12:38:54,881 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 12:38:54,881 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 12:38:54,881 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 12:38:54,882 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 12:38:54,882 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 12:38:54,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:38:54,882 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 12:38:54,883 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 12:38:54,883 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 12:38:54,883 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 12:38:54,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 12:38:54,886 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 12:38:54,886 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 12:38:54,886 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 12:38:54,887 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 12:38:54,887 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 387879bf92b16ead997b40b3e249348f8a6b399496756f9bc3c41b6dc3c21353 [2024-11-12 12:38:55,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 12:38:55,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 12:38:55,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 12:38:55,158 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 12:38:55,159 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 12:38:55,160 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c [2024-11-12 12:38:56,622 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 12:38:56,796 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 12:38:56,796 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c [2024-11-12 12:38:56,804 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c193db11/83bdd2e7dcee4237a069166f3bce4d9e/FLAG1da657bf2 [2024-11-12 12:38:57,186 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c193db11/83bdd2e7dcee4237a069166f3bce4d9e [2024-11-12 12:38:57,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 12:38:57,189 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 12:38:57,192 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 12:38:57,192 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 12:38:57,198 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 12:38:57,198 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:38:57" (1/1) ... [2024-11-12 12:38:57,199 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a547cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:57, skipping insertion in model container [2024-11-12 12:38:57,200 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:38:57" (1/1) ... [2024-11-12 12:38:57,227 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 12:38:57,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:38:57,515 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 12:38:57,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:38:57,556 INFO L204 MainTranslator]: Completed translation [2024-11-12 12:38:57,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:57 WrapperNode [2024-11-12 12:38:57,557 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 12:38:57,558 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 12:38:57,558 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 12:38:57,559 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 12:38:57,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:57" (1/1) ... [2024-11-12 12:38:57,579 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:57" (1/1) ... [2024-11-12 12:38:57,618 INFO L138 Inliner]: procedures = 23, calls = 23, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 171 [2024-11-12 12:38:57,619 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 12:38:57,620 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 12:38:57,620 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 12:38:57,620 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 12:38:57,628 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:57" (1/1) ... [2024-11-12 12:38:57,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:57" (1/1) ... [2024-11-12 12:38:57,632 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:57" (1/1) ... [2024-11-12 12:38:57,632 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:57" (1/1) ... [2024-11-12 12:38:57,641 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:57" (1/1) ... [2024-11-12 12:38:57,645 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:57" (1/1) ... [2024-11-12 12:38:57,646 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:57" (1/1) ... [2024-11-12 12:38:57,648 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:57" (1/1) ... [2024-11-12 12:38:57,652 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 12:38:57,653 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 12:38:57,653 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 12:38:57,653 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 12:38:57,654 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:57" (1/1) ... [2024-11-12 12:38:57,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:38:57,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:38:57,685 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) [2024-11-12 12:38:57,688 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 [2024-11-12 12:38:57,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 12:38:57,723 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-12 12:38:57,724 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-12 12:38:57,724 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-12 12:38:57,724 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-12 12:38:57,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 12:38:57,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-12 12:38:57,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 12:38:57,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 12:38:57,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 12:38:57,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-12 12:38:57,726 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 12:38:57,820 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 12:38:57,822 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 12:38:58,148 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 12:38:58,148 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 12:38:58,164 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 12:38:58,164 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-12 12:38:58,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:38:58 BoogieIcfgContainer [2024-11-12 12:38:58,165 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 12:38:58,168 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 12:38:58,168 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 12:38:58,171 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 12:38:58,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:38:57" (1/3) ... [2024-11-12 12:38:58,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28865152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:38:58, skipping insertion in model container [2024-11-12 12:38:58,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:57" (2/3) ... [2024-11-12 12:38:58,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28865152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:38:58, skipping insertion in model container [2024-11-12 12:38:58,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:38:58" (3/3) ... [2024-11-12 12:38:58,173 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-counter-queue.wvr.c [2024-11-12 12:38:58,188 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 12:38:58,189 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-12 12:38:58,189 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 12:38:58,320 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-12 12:38:58,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 221 transitions, 456 flow [2024-11-12 12:38:58,465 INFO L124 PetriNetUnfolderBase]: 13/219 cut-off events. [2024-11-12 12:38:58,466 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-12 12:38:58,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 219 events. 13/219 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 324 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 145. Up to 2 conditions per place. [2024-11-12 12:38:58,489 INFO L82 GeneralOperation]: Start removeDead. Operand has 215 places, 221 transitions, 456 flow [2024-11-12 12:38:58,500 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 197 places, 202 transitions, 413 flow [2024-11-12 12:38:58,535 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:38:58,541 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;@1a98a598, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:38:58,542 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-12 12:38:58,548 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:38:58,552 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2024-11-12 12:38:58,552 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:38:58,552 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:38:58,553 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:38:58,553 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-12 12:38:58,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:38:58,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1900401397, now seen corresponding path program 1 times [2024-11-12 12:38:58,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:38:58,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956266469] [2024-11-12 12:38:58,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:38:58,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:38:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:38:58,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:38:58,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:38:58,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956266469] [2024-11-12 12:38:58,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956266469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:38:58,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:38:58,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:38:58,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794425816] [2024-11-12 12:38:58,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:38:58,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:38:58,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:38:58,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:38:58,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:38:58,827 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 221 [2024-11-12 12:38:58,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 202 transitions, 413 flow. Second operand has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 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) [2024-11-12 12:38:58,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:38:58,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 221 [2024-11-12 12:38:58,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:38:58,928 INFO L124 PetriNetUnfolderBase]: 8/298 cut-off events. [2024-11-12 12:38:58,929 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-12 12:38:58,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 298 events. 8/298 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 762 event pairs, 3 based on Foata normal form. 11/278 useless extension candidates. Maximal degree in co-relation 229. Up to 18 conditions per place. [2024-11-12 12:38:58,936 INFO L140 encePairwiseOnDemand]: 209/221 looper letters, 9 selfloop transitions, 2 changer transitions 2/192 dead transitions. [2024-11-12 12:38:58,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 192 transitions, 415 flow [2024-11-12 12:38:58,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:38:58,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:38:58,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 609 transitions. [2024-11-12 12:38:58,951 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.918552036199095 [2024-11-12 12:38:58,953 INFO L175 Difference]: Start difference. First operand has 197 places, 202 transitions, 413 flow. Second operand 3 states and 609 transitions. [2024-11-12 12:38:58,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 192 transitions, 415 flow [2024-11-12 12:38:58,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 192 transitions, 410 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-12 12:38:58,966 INFO L231 Difference]: Finished difference. Result has 195 places, 190 transitions, 388 flow [2024-11-12 12:38:58,969 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=388, PETRI_PLACES=195, PETRI_TRANSITIONS=190} [2024-11-12 12:38:58,975 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -2 predicate places. [2024-11-12 12:38:58,975 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 190 transitions, 388 flow [2024-11-12 12:38:58,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 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) [2024-11-12 12:38:58,976 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:38:58,976 INFO L206 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] [2024-11-12 12:38:58,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 12:38:58,977 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-12 12:38:58,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:38:58,979 INFO L85 PathProgramCache]: Analyzing trace with hash -463706976, now seen corresponding path program 1 times [2024-11-12 12:38:58,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:38:58,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97359856] [2024-11-12 12:38:58,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:38:58,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:38:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:38:59,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:38:59,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:38:59,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97359856] [2024-11-12 12:38:59,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97359856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:38:59,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:38:59,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:38:59,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193163393] [2024-11-12 12:38:59,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:38:59,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:38:59,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:38:59,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:38:59,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:38:59,082 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 221 [2024-11-12 12:38:59,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 190 transitions, 388 flow. Second operand has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 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) [2024-11-12 12:38:59,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:38:59,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 221 [2024-11-12 12:38:59,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:38:59,152 INFO L124 PetriNetUnfolderBase]: 17/444 cut-off events. [2024-11-12 12:38:59,152 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-12 12:38:59,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 444 events. 17/444 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1733 event pairs, 8 based on Foata normal form. 0/402 useless extension candidates. Maximal degree in co-relation 461. Up to 31 conditions per place. [2024-11-12 12:38:59,161 INFO L140 encePairwiseOnDemand]: 217/221 looper letters, 9 selfloop transitions, 1 changer transitions 0/187 dead transitions. [2024-11-12 12:38:59,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 187 transitions, 402 flow [2024-11-12 12:38:59,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:38:59,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:38:59,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 601 transitions. [2024-11-12 12:38:59,186 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9064856711915535 [2024-11-12 12:38:59,186 INFO L175 Difference]: Start difference. First operand has 195 places, 190 transitions, 388 flow. Second operand 3 states and 601 transitions. [2024-11-12 12:38:59,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 187 transitions, 402 flow [2024-11-12 12:38:59,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 187 transitions, 398 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:38:59,193 INFO L231 Difference]: Finished difference. Result has 190 places, 187 transitions, 380 flow [2024-11-12 12:38:59,195 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=380, PETRI_PLACES=190, PETRI_TRANSITIONS=187} [2024-11-12 12:38:59,195 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -7 predicate places. [2024-11-12 12:38:59,196 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 187 transitions, 380 flow [2024-11-12 12:38:59,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 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) [2024-11-12 12:38:59,197 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:38:59,197 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:38:59,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 12:38:59,198 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-12 12:38:59,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:38:59,200 INFO L85 PathProgramCache]: Analyzing trace with hash 360540549, now seen corresponding path program 1 times [2024-11-12 12:38:59,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:38:59,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715747413] [2024-11-12 12:38:59,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:38:59,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:38:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:38:59,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:38:59,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:38:59,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715747413] [2024-11-12 12:38:59,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715747413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:38:59,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:38:59,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:38:59,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643446425] [2024-11-12 12:38:59,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:38:59,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:38:59,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:38:59,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:38:59,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:38:59,332 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 221 [2024-11-12 12:38:59,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 187 transitions, 380 flow. Second operand has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 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) [2024-11-12 12:38:59,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:38:59,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 221 [2024-11-12 12:38:59,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:38:59,383 INFO L124 PetriNetUnfolderBase]: 7/244 cut-off events. [2024-11-12 12:38:59,383 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-12 12:38:59,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 244 events. 7/244 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 491 event pairs, 3 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 242. Up to 15 conditions per place. [2024-11-12 12:38:59,385 INFO L140 encePairwiseOnDemand]: 218/221 looper letters, 8 selfloop transitions, 2 changer transitions 0/186 dead transitions. [2024-11-12 12:38:59,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 186 transitions, 398 flow [2024-11-12 12:38:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:38:59,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:38:59,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 602 transitions. [2024-11-12 12:38:59,388 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9079939668174962 [2024-11-12 12:38:59,388 INFO L175 Difference]: Start difference. First operand has 190 places, 187 transitions, 380 flow. Second operand 3 states and 602 transitions. [2024-11-12 12:38:59,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 186 transitions, 398 flow [2024-11-12 12:38:59,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 186 transitions, 397 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:38:59,395 INFO L231 Difference]: Finished difference. Result has 190 places, 186 transitions, 381 flow [2024-11-12 12:38:59,396 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=381, PETRI_PLACES=190, PETRI_TRANSITIONS=186} [2024-11-12 12:38:59,396 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -7 predicate places. [2024-11-12 12:38:59,397 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 186 transitions, 381 flow [2024-11-12 12:38:59,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 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) [2024-11-12 12:38:59,398 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:38:59,399 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:38:59,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 12:38:59,399 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-12 12:38:59,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:38:59,400 INFO L85 PathProgramCache]: Analyzing trace with hash 2824340, now seen corresponding path program 1 times [2024-11-12 12:38:59,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:38:59,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471970521] [2024-11-12 12:38:59,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:38:59,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:38:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:39:00,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:39:00,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:39:00,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471970521] [2024-11-12 12:39:00,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471970521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:39:00,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:39:00,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:39:00,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455716126] [2024-11-12 12:39:00,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:39:00,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:39:00,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:39:00,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:39:00,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:39:00,228 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 221 [2024-11-12 12:39:00,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 186 transitions, 381 flow. Second operand has 6 states, 6 states have (on average 185.5) internal successors, (1113), 6 states have internal predecessors, (1113), 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) [2024-11-12 12:39:00,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:39:00,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 221 [2024-11-12 12:39:00,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:39:00,310 INFO L124 PetriNetUnfolderBase]: 42/566 cut-off events. [2024-11-12 12:39:00,311 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-12 12:39:00,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 669 conditions, 566 events. 42/566 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2484 event pairs, 24 based on Foata normal form. 0/510 useless extension candidates. Maximal degree in co-relation 643. Up to 82 conditions per place. [2024-11-12 12:39:00,314 INFO L140 encePairwiseOnDemand]: 215/221 looper letters, 19 selfloop transitions, 5 changer transitions 0/185 dead transitions. [2024-11-12 12:39:00,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 185 transitions, 427 flow [2024-11-12 12:39:00,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:39:00,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:39:00,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1129 transitions. [2024-11-12 12:39:00,318 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8514328808446455 [2024-11-12 12:39:00,318 INFO L175 Difference]: Start difference. First operand has 190 places, 186 transitions, 381 flow. Second operand 6 states and 1129 transitions. [2024-11-12 12:39:00,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 185 transitions, 427 flow [2024-11-12 12:39:00,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 185 transitions, 423 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:39:00,324 INFO L231 Difference]: Finished difference. Result has 192 places, 185 transitions, 385 flow [2024-11-12 12:39:00,324 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=385, PETRI_PLACES=192, PETRI_TRANSITIONS=185} [2024-11-12 12:39:00,326 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -5 predicate places. [2024-11-12 12:39:00,326 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 185 transitions, 385 flow [2024-11-12 12:39:00,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.5) internal successors, (1113), 6 states have internal predecessors, (1113), 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) [2024-11-12 12:39:00,327 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:39:00,328 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:39:00,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 12:39:00,328 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-12 12:39:00,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:39:00,329 INFO L85 PathProgramCache]: Analyzing trace with hash 493906067, now seen corresponding path program 1 times [2024-11-12 12:39:00,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:39:00,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360141766] [2024-11-12 12:39:00,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:39:00,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:39:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:39:00,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:39:00,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:39:00,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360141766] [2024-11-12 12:39:00,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360141766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:39:00,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:39:00,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:39:00,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808994605] [2024-11-12 12:39:00,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:39:00,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:39:00,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:39:00,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:39:00,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:39:00,392 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 221 [2024-11-12 12:39:00,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 185 transitions, 385 flow. Second operand has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 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) [2024-11-12 12:39:00,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:39:00,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 221 [2024-11-12 12:39:00,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:39:00,449 INFO L124 PetriNetUnfolderBase]: 20/455 cut-off events. [2024-11-12 12:39:00,449 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-12 12:39:00,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 507 conditions, 455 events. 20/455 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1726 event pairs, 2 based on Foata normal form. 0/422 useless extension candidates. Maximal degree in co-relation 489. Up to 32 conditions per place. [2024-11-12 12:39:00,452 INFO L140 encePairwiseOnDemand]: 217/221 looper letters, 10 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2024-11-12 12:39:00,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 187 transitions, 416 flow [2024-11-12 12:39:00,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:39:00,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:39:00,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 611 transitions. [2024-11-12 12:39:00,456 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9215686274509803 [2024-11-12 12:39:00,456 INFO L175 Difference]: Start difference. First operand has 192 places, 185 transitions, 385 flow. Second operand 3 states and 611 transitions. [2024-11-12 12:39:00,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 187 transitions, 416 flow [2024-11-12 12:39:00,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 187 transitions, 406 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:39:00,464 INFO L231 Difference]: Finished difference. Result has 188 places, 185 transitions, 385 flow [2024-11-12 12:39:00,464 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=385, PETRI_PLACES=188, PETRI_TRANSITIONS=185} [2024-11-12 12:39:00,466 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -9 predicate places. [2024-11-12 12:39:00,466 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 185 transitions, 385 flow [2024-11-12 12:39:00,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 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) [2024-11-12 12:39:00,467 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:39:00,468 INFO L206 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] [2024-11-12 12:39:00,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 12:39:00,468 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-12 12:39:00,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:39:00,472 INFO L85 PathProgramCache]: Analyzing trace with hash -281027081, now seen corresponding path program 1 times [2024-11-12 12:39:00,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:39:00,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728505065] [2024-11-12 12:39:00,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:39:00,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:39:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:39:00,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:39:00,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:39:00,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728505065] [2024-11-12 12:39:00,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728505065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:39:00,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:39:00,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 12:39:00,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389111481] [2024-11-12 12:39:00,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:39:00,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 12:39:00,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:39:00,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 12:39:00,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-12 12:39:00,749 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 221 [2024-11-12 12:39:00,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 185 transitions, 385 flow. Second operand has 7 states, 7 states have (on average 192.85714285714286) internal successors, (1350), 7 states have internal predecessors, (1350), 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) [2024-11-12 12:39:00,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:39:00,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 221 [2024-11-12 12:39:00,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:39:00,870 INFO L124 PetriNetUnfolderBase]: 17/486 cut-off events. [2024-11-12 12:39:00,870 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-12 12:39:00,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 582 conditions, 486 events. 17/486 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1757 event pairs, 6 based on Foata normal form. 2/461 useless extension candidates. Maximal degree in co-relation 554. Up to 29 conditions per place. [2024-11-12 12:39:00,874 INFO L140 encePairwiseOnDemand]: 208/221 looper letters, 15 selfloop transitions, 14 changer transitions 0/196 dead transitions. [2024-11-12 12:39:00,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 196 transitions, 471 flow [2024-11-12 12:39:00,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 12:39:00,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-12 12:39:00,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1940 transitions. [2024-11-12 12:39:00,879 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8778280542986425 [2024-11-12 12:39:00,879 INFO L175 Difference]: Start difference. First operand has 188 places, 185 transitions, 385 flow. Second operand 10 states and 1940 transitions. [2024-11-12 12:39:00,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 196 transitions, 471 flow [2024-11-12 12:39:00,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 196 transitions, 471 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:39:00,882 INFO L231 Difference]: Finished difference. Result has 201 places, 192 transitions, 451 flow [2024-11-12 12:39:00,883 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=451, PETRI_PLACES=201, PETRI_TRANSITIONS=192} [2024-11-12 12:39:00,884 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, 4 predicate places. [2024-11-12 12:39:00,884 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 192 transitions, 451 flow [2024-11-12 12:39:00,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 192.85714285714286) internal successors, (1350), 7 states have internal predecessors, (1350), 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) [2024-11-12 12:39:00,885 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:39:00,885 INFO L206 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] [2024-11-12 12:39:00,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 12:39:00,885 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-12 12:39:00,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:39:00,886 INFO L85 PathProgramCache]: Analyzing trace with hash -142303261, now seen corresponding path program 1 times [2024-11-12 12:39:00,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:39:00,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941336189] [2024-11-12 12:39:00,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:39:00,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:39:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:39:00,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:39:00,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:39:00,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941336189] [2024-11-12 12:39:00,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941336189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:39:00,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:39:00,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 12:39:00,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251155446] [2024-11-12 12:39:00,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:39:00,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 12:39:00,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:39:00,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 12:39:00,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-12 12:39:01,140 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 221 [2024-11-12 12:39:01,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 192 transitions, 451 flow. Second operand has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2024-11-12 12:39:01,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:39:01,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 221 [2024-11-12 12:39:01,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:39:01,259 INFO L124 PetriNetUnfolderBase]: 22/385 cut-off events. [2024-11-12 12:39:01,260 INFO L125 PetriNetUnfolderBase]: For 32/33 co-relation queries the response was YES. [2024-11-12 12:39:01,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 385 events. 22/385 cut-off events. For 32/33 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1170 event pairs, 8 based on Foata normal form. 2/370 useless extension candidates. Maximal degree in co-relation 462. Up to 35 conditions per place. [2024-11-12 12:39:01,262 INFO L140 encePairwiseOnDemand]: 208/221 looper letters, 11 selfloop transitions, 8 changer transitions 12/198 dead transitions. [2024-11-12 12:39:01,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 198 transitions, 526 flow [2024-11-12 12:39:01,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 12:39:01,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-12 12:39:01,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1940 transitions. [2024-11-12 12:39:01,267 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8778280542986425 [2024-11-12 12:39:01,267 INFO L175 Difference]: Start difference. First operand has 201 places, 192 transitions, 451 flow. Second operand 10 states and 1940 transitions. [2024-11-12 12:39:01,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 198 transitions, 526 flow [2024-11-12 12:39:01,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 198 transitions, 522 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:39:01,271 INFO L231 Difference]: Finished difference. Result has 211 places, 186 transitions, 439 flow [2024-11-12 12:39:01,272 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=439, PETRI_PLACES=211, PETRI_TRANSITIONS=186} [2024-11-12 12:39:01,273 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, 14 predicate places. [2024-11-12 12:39:01,273 INFO L471 AbstractCegarLoop]: Abstraction has has 211 places, 186 transitions, 439 flow [2024-11-12 12:39:01,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 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) [2024-11-12 12:39:01,274 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:39:01,274 INFO L206 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] [2024-11-12 12:39:01,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 12:39:01,275 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-12 12:39:01,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:39:01,276 INFO L85 PathProgramCache]: Analyzing trace with hash 854175196, now seen corresponding path program 1 times [2024-11-12 12:39:01,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:39:01,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88570980] [2024-11-12 12:39:01,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:39:01,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:39:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:39:01,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 12:39:01,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:39:01,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88570980] [2024-11-12 12:39:01,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88570980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:39:01,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:39:01,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:39:01,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042367124] [2024-11-12 12:39:01,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:39:01,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:39:01,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:39:01,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:39:01,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:39:01,833 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 221 [2024-11-12 12:39:01,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 186 transitions, 439 flow. Second operand has 6 states, 6 states have (on average 193.16666666666666) internal successors, (1159), 6 states have internal predecessors, (1159), 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) [2024-11-12 12:39:01,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:39:01,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 221 [2024-11-12 12:39:01,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:39:01,911 INFO L124 PetriNetUnfolderBase]: 16/329 cut-off events. [2024-11-12 12:39:01,911 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-12 12:39:01,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 452 conditions, 329 events. 16/329 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 855 event pairs, 4 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 413. Up to 27 conditions per place. [2024-11-12 12:39:01,913 INFO L140 encePairwiseOnDemand]: 215/221 looper letters, 16 selfloop transitions, 5 changer transitions 0/189 dead transitions. [2024-11-12 12:39:01,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 189 transitions, 495 flow [2024-11-12 12:39:01,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:39:01,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:39:01,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1168 transitions. [2024-11-12 12:39:01,917 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8808446455505279 [2024-11-12 12:39:01,917 INFO L175 Difference]: Start difference. First operand has 211 places, 186 transitions, 439 flow. Second operand 6 states and 1168 transitions. [2024-11-12 12:39:01,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 189 transitions, 495 flow [2024-11-12 12:39:01,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 189 transitions, 451 flow, removed 7 selfloop flow, removed 13 redundant places. [2024-11-12 12:39:01,921 INFO L231 Difference]: Finished difference. Result has 194 places, 185 transitions, 403 flow [2024-11-12 12:39:01,922 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=403, PETRI_PLACES=194, PETRI_TRANSITIONS=185} [2024-11-12 12:39:01,922 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -3 predicate places. [2024-11-12 12:39:01,922 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 185 transitions, 403 flow [2024-11-12 12:39:01,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 193.16666666666666) internal successors, (1159), 6 states have internal predecessors, (1159), 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) [2024-11-12 12:39:01,923 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:39:01,924 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:39:01,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 12:39:01,924 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-12 12:39:01,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:39:01,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1807077368, now seen corresponding path program 1 times [2024-11-12 12:39:01,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:39:01,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685116454] [2024-11-12 12:39:01,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:39:01,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:39:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:39:02,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 12:39:02,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:39:02,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685116454] [2024-11-12 12:39:02,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685116454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:39:02,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:39:02,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:39:02,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427615052] [2024-11-12 12:39:02,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:39:02,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:39:02,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:39:02,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:39:02,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:39:02,451 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 221 [2024-11-12 12:39:02,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 185 transitions, 403 flow. Second operand has 6 states, 6 states have (on average 193.33333333333334) internal successors, (1160), 6 states have internal predecessors, (1160), 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) [2024-11-12 12:39:02,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:39:02,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 221 [2024-11-12 12:39:02,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:39:02,513 INFO L124 PetriNetUnfolderBase]: 26/337 cut-off events. [2024-11-12 12:39:02,513 INFO L125 PetriNetUnfolderBase]: For 20/21 co-relation queries the response was YES. [2024-11-12 12:39:02,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 337 events. 26/337 cut-off events. For 20/21 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 917 event pairs, 5 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 397. Up to 34 conditions per place. [2024-11-12 12:39:02,515 INFO L140 encePairwiseOnDemand]: 215/221 looper letters, 0 selfloop transitions, 0 changer transitions 188/188 dead transitions. [2024-11-12 12:39:02,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 188 transitions, 455 flow [2024-11-12 12:39:02,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:39:02,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:39:02,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1168 transitions. [2024-11-12 12:39:02,518 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8808446455505279 [2024-11-12 12:39:02,518 INFO L175 Difference]: Start difference. First operand has 194 places, 185 transitions, 403 flow. Second operand 6 states and 1168 transitions. [2024-11-12 12:39:02,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 188 transitions, 455 flow [2024-11-12 12:39:02,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 188 transitions, 445 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:39:02,521 INFO L231 Difference]: Finished difference. Result has 193 places, 0 transitions, 0 flow [2024-11-12 12:39:02,521 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=193, PETRI_TRANSITIONS=0} [2024-11-12 12:39:02,522 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -4 predicate places. [2024-11-12 12:39:02,522 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 0 transitions, 0 flow [2024-11-12 12:39:02,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 193.33333333333334) internal successors, (1160), 6 states have internal predecessors, (1160), 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) [2024-11-12 12:39:02,528 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 18 remaining) [2024-11-12 12:39:02,529 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-12 12:39:02,529 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-12 12:39:02,529 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-12 12:39:02,529 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-12 12:39:02,530 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-12 12:39:02,530 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-12 12:39:02,530 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-12 12:39:02,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-12 12:39:02,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-12 12:39:02,533 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2024-11-12 12:39:02,533 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 18 remaining) [2024-11-12 12:39:02,533 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-12 12:39:02,533 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-12 12:39:02,533 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-12 12:39:02,533 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-12 12:39:02,533 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-12 12:39:02,533 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-12 12:39:02,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 12:39:02,534 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:39:02,541 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 12:39:02,542 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 12:39:02,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:39:02 BasicIcfg [2024-11-12 12:39:02,548 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 12:39:02,549 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 12:39:02,549 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 12:39:02,549 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 12:39:02,549 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:38:58" (3/4) ... [2024-11-12 12:39:02,551 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-12 12:39:02,554 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-12 12:39:02,554 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-12 12:39:02,559 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-12 12:39:02,559 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-12 12:39:02,559 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-12 12:39:02,560 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-12 12:39:02,651 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 12:39:02,651 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-12 12:39:02,651 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 12:39:02,652 INFO L158 Benchmark]: Toolchain (without parser) took 5462.95ms. Allocated memory was 161.5MB in the beginning and 257.9MB in the end (delta: 96.5MB). Free memory was 108.7MB in the beginning and 149.7MB in the end (delta: -41.0MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. [2024-11-12 12:39:02,652 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory was 50.7MB in the beginning and 50.6MB in the end (delta: 151.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 12:39:02,652 INFO L158 Benchmark]: CACSL2BoogieTranslator took 365.53ms. Allocated memory is still 161.5MB. Free memory was 108.2MB in the beginning and 129.4MB in the end (delta: -21.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-12 12:39:02,653 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.94ms. Allocated memory is still 161.5MB. Free memory was 129.4MB in the beginning and 126.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 12:39:02,653 INFO L158 Benchmark]: Boogie Preprocessor took 32.14ms. Allocated memory is still 161.5MB. Free memory was 126.9MB in the beginning and 125.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 12:39:02,653 INFO L158 Benchmark]: RCFGBuilder took 512.30ms. Allocated memory is still 161.5MB. Free memory was 124.9MB in the beginning and 104.2MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-12 12:39:02,653 INFO L158 Benchmark]: TraceAbstraction took 4380.38ms. Allocated memory was 161.5MB in the beginning and 257.9MB in the end (delta: 96.5MB). Free memory was 103.9MB in the beginning and 153.9MB in the end (delta: -50.0MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2024-11-12 12:39:02,654 INFO L158 Benchmark]: Witness Printer took 102.78ms. Allocated memory is still 257.9MB. Free memory was 153.9MB in the beginning and 149.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 12:39:02,655 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory was 50.7MB in the beginning and 50.6MB in the end (delta: 151.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 365.53ms. Allocated memory is still 161.5MB. Free memory was 108.2MB in the beginning and 129.4MB in the end (delta: -21.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.94ms. Allocated memory is still 161.5MB. Free memory was 129.4MB in the beginning and 126.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.14ms. Allocated memory is still 161.5MB. Free memory was 126.9MB in the beginning and 125.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 512.30ms. Allocated memory is still 161.5MB. Free memory was 124.9MB in the beginning and 104.2MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4380.38ms. Allocated memory was 161.5MB in the beginning and 257.9MB in the end (delta: 96.5MB). Free memory was 103.9MB in the beginning and 153.9MB in the end (delta: -50.0MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. * Witness Printer took 102.78ms. Allocated memory is still 257.9MB. Free memory was 153.9MB in the beginning and 149.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 315 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.2s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 659 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 430 mSDsluCounter, 420 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 387 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1048 IncrementalHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 33 mSDtfsCounter, 1048 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=451occurred in iteration=6, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 544 NumberOfCodeBlocks, 544 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 535 ConstructedInterpolants, 0 QuantifiedInterpolants, 1092 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-12 12:39:02,684 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE