./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-2.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 9c046e6043edd4a9981865f273deb13bc96b2518d014dd6435bf0abb656de540 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:54:39,208 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:54:39,257 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:54:39,260 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:54:39,260 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:54:39,285 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:54:39,286 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:54:39,286 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:54:39,287 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:54:39,288 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:54:39,289 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:54:39,289 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:54:39,289 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:54:39,290 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:54:39,290 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:54:39,291 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:54:39,291 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:54:39,292 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:54:39,292 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:54:39,292 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:54:39,292 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:54:39,293 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:54:39,293 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:54:39,293 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:54:39,294 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:54:39,294 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:54:39,294 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:54:39,294 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:54:39,295 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:54:39,295 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:54:39,295 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:54:39,295 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:54:39,295 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:54:39,296 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:54:39,296 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:54:39,296 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:54:39,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:54:39,297 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:54:39,297 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:54:39,297 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:54:39,297 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:54:39,298 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c046e6043edd4a9981865f273deb13bc96b2518d014dd6435bf0abb656de540 [2024-11-20 13:54:39,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:54:39,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:54:39,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:54:39,514 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:54:39,515 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:54:39,516 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c [2024-11-20 13:54:40,811 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:54:40,970 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:54:40,971 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c [2024-11-20 13:54:40,979 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/204de89d9/8aa1b6a260524bd8acc5a28e9172f6c0/FLAG9bb4ef7ec [2024-11-20 13:54:40,992 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/204de89d9/8aa1b6a260524bd8acc5a28e9172f6c0 [2024-11-20 13:54:40,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:54:40,995 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:54:40,996 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:54:40,996 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:54:41,001 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:54:41,001 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:54:40" (1/1) ... [2024-11-20 13:54:41,002 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fcf8b63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:41, skipping insertion in model container [2024-11-20 13:54:41,002 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:54:40" (1/1) ... [2024-11-20 13:54:41,018 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:54:41,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:54:41,215 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:54:41,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:54:41,246 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:54:41,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:41 WrapperNode [2024-11-20 13:54:41,247 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:54:41,248 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:54:41,248 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:54:41,248 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:54:41,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:41" (1/1) ... [2024-11-20 13:54:41,259 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:41" (1/1) ... [2024-11-20 13:54:41,274 INFO L138 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 130 [2024-11-20 13:54:41,275 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:54:41,275 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:54:41,276 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:54:41,276 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:54:41,283 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:41" (1/1) ... [2024-11-20 13:54:41,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:41" (1/1) ... [2024-11-20 13:54:41,289 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:41" (1/1) ... [2024-11-20 13:54:41,290 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:41" (1/1) ... [2024-11-20 13:54:41,293 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:41" (1/1) ... [2024-11-20 13:54:41,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:41" (1/1) ... [2024-11-20 13:54:41,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:41" (1/1) ... [2024-11-20 13:54:41,318 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:41" (1/1) ... [2024-11-20 13:54:41,320 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:54:41,321 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:54:41,321 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:54:41,321 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:54:41,325 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:41" (1/1) ... [2024-11-20 13:54:41,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:54:41,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:54:41,416 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) [2024-11-20 13:54:41,418 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 [2024-11-20 13:54:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:54:41,457 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-20 13:54:41,458 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-20 13:54:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-20 13:54:41,458 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-20 13:54:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:54:41,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:54:41,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:54:41,459 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:54:41,541 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:54:41,542 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:54:41,699 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:54:41,699 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:54:41,719 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:54:41,719 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 13:54:41,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:54:41 BoogieIcfgContainer [2024-11-20 13:54:41,719 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:54:41,721 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:54:41,721 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:54:41,724 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:54:41,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:54:40" (1/3) ... [2024-11-20 13:54:41,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71dd7895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:54:41, skipping insertion in model container [2024-11-20 13:54:41,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:54:41" (2/3) ... [2024-11-20 13:54:41,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71dd7895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:54:41, skipping insertion in model container [2024-11-20 13:54:41,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:54:41" (3/3) ... [2024-11-20 13:54:41,726 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-2.wvr.c [2024-11-20 13:54:41,738 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:54:41,739 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-20 13:54:41,739 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:54:41,794 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-20 13:54:41,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 143 transitions, 300 flow [2024-11-20 13:54:41,862 INFO L124 PetriNetUnfolderBase]: 5/141 cut-off events. [2024-11-20 13:54:41,862 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 13:54:41,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 141 events. 5/141 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 86 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2024-11-20 13:54:41,867 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 143 transitions, 300 flow [2024-11-20 13:54:41,870 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 124 transitions, 257 flow [2024-11-20 13:54:41,877 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:54:41,882 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;@45b19ad5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:54:41,882 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-20 13:54:41,887 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:54:41,887 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2024-11-20 13:54:41,887 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:54:41,888 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:41,888 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:54:41,889 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-20 13:54:41,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:41,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1483852142, now seen corresponding path program 1 times [2024-11-20 13:54:41,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:41,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817908236] [2024-11-20 13:54:41,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:41,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:42,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:42,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:42,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817908236] [2024-11-20 13:54:42,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817908236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:42,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:42,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:42,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456165197] [2024-11-20 13:54:42,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:42,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:42,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:42,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:42,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:42,091 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 143 [2024-11-20 13:54:42,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 124 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2024-11-20 13:54:42,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:42,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 143 [2024-11-20 13:54:42,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:42,147 INFO L124 PetriNetUnfolderBase]: 15/208 cut-off events. [2024-11-20 13:54:42,147 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-20 13:54:42,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 208 events. 15/208 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 506 event pairs, 14 based on Foata normal form. 8/193 useless extension candidates. Maximal degree in co-relation 184. Up to 41 conditions per place. [2024-11-20 13:54:42,150 INFO L140 encePairwiseOnDemand]: 137/143 looper letters, 12 selfloop transitions, 2 changer transitions 1/120 dead transitions. [2024-11-20 13:54:42,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 120 transitions, 277 flow [2024-11-20 13:54:42,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:42,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:42,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 381 transitions. [2024-11-20 13:54:42,163 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8881118881118881 [2024-11-20 13:54:42,166 INFO L175 Difference]: Start difference. First operand has 127 places, 124 transitions, 257 flow. Second operand 3 states and 381 transitions. [2024-11-20 13:54:42,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 120 transitions, 277 flow [2024-11-20 13:54:42,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 120 transitions, 272 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 13:54:42,173 INFO L231 Difference]: Finished difference. Result has 125 places, 119 transitions, 246 flow [2024-11-20 13:54:42,177 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=125, PETRI_TRANSITIONS=119} [2024-11-20 13:54:42,181 INFO L277 CegarLoopForPetriNet]: 127 programPoint places, -2 predicate places. [2024-11-20 13:54:42,181 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 119 transitions, 246 flow [2024-11-20 13:54:42,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2024-11-20 13:54:42,182 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:42,183 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:54:42,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:54:42,183 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-20 13:54:42,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:42,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1644497401, now seen corresponding path program 1 times [2024-11-20 13:54:42,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:42,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948203614] [2024-11-20 13:54:42,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:42,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:42,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:42,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:42,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948203614] [2024-11-20 13:54:42,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948203614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:42,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:42,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:42,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925785365] [2024-11-20 13:54:42,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:42,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:42,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:42,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:42,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:42,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 143 [2024-11-20 13:54:42,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 119 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2024-11-20 13:54:42,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:42,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 143 [2024-11-20 13:54:42,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:42,358 INFO L124 PetriNetUnfolderBase]: 15/256 cut-off events. [2024-11-20 13:54:42,358 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-20 13:54:42,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 256 events. 15/256 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 769 event pairs, 14 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 280. Up to 41 conditions per place. [2024-11-20 13:54:42,361 INFO L140 encePairwiseOnDemand]: 140/143 looper letters, 12 selfloop transitions, 2 changer transitions 0/118 dead transitions. [2024-11-20 13:54:42,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 118 transitions, 272 flow [2024-11-20 13:54:42,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:42,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:42,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2024-11-20 13:54:42,364 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8811188811188811 [2024-11-20 13:54:42,365 INFO L175 Difference]: Start difference. First operand has 125 places, 119 transitions, 246 flow. Second operand 3 states and 378 transitions. [2024-11-20 13:54:42,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 118 transitions, 272 flow [2024-11-20 13:54:42,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 118 transitions, 268 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:54:42,370 INFO L231 Difference]: Finished difference. Result has 123 places, 118 transitions, 244 flow [2024-11-20 13:54:42,371 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=123, PETRI_TRANSITIONS=118} [2024-11-20 13:54:42,372 INFO L277 CegarLoopForPetriNet]: 127 programPoint places, -4 predicate places. [2024-11-20 13:54:42,372 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 118 transitions, 244 flow [2024-11-20 13:54:42,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2024-11-20 13:54:42,373 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:42,373 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:54:42,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 13:54:42,373 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-20 13:54:42,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:42,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1207941065, now seen corresponding path program 1 times [2024-11-20 13:54:42,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:42,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709163009] [2024-11-20 13:54:42,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:42,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:42,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:42,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:42,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709163009] [2024-11-20 13:54:42,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709163009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:42,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:42,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:42,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128726554] [2024-11-20 13:54:42,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:42,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:42,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:42,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:42,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:42,469 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 143 [2024-11-20 13:54:42,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 118 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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) [2024-11-20 13:54:42,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:42,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 143 [2024-11-20 13:54:42,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:42,534 INFO L124 PetriNetUnfolderBase]: 24/211 cut-off events. [2024-11-20 13:54:42,535 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-20 13:54:42,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 292 conditions, 211 events. 24/211 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 585 event pairs, 17 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 254. Up to 46 conditions per place. [2024-11-20 13:54:42,536 INFO L140 encePairwiseOnDemand]: 140/143 looper letters, 14 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2024-11-20 13:54:42,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 120 transitions, 282 flow [2024-11-20 13:54:42,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:42,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:42,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2024-11-20 13:54:42,538 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8997668997668997 [2024-11-20 13:54:42,538 INFO L175 Difference]: Start difference. First operand has 123 places, 118 transitions, 244 flow. Second operand 3 states and 386 transitions. [2024-11-20 13:54:42,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 120 transitions, 282 flow [2024-11-20 13:54:42,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 120 transitions, 278 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:54:42,540 INFO L231 Difference]: Finished difference. Result has 122 places, 117 transitions, 242 flow [2024-11-20 13:54:42,541 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=122, PETRI_TRANSITIONS=117} [2024-11-20 13:54:42,541 INFO L277 CegarLoopForPetriNet]: 127 programPoint places, -5 predicate places. [2024-11-20 13:54:42,541 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 117 transitions, 242 flow [2024-11-20 13:54:42,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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) [2024-11-20 13:54:42,542 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:42,542 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:54:42,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 13:54:42,542 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-20 13:54:42,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:42,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1303920582, now seen corresponding path program 1 times [2024-11-20 13:54:42,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:42,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302918944] [2024-11-20 13:54:42,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:42,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:42,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:42,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:42,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302918944] [2024-11-20 13:54:42,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302918944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:42,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:42,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:42,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608732960] [2024-11-20 13:54:42,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:42,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:42,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:42,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:42,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:42,607 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 143 [2024-11-20 13:54:42,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 117 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 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) [2024-11-20 13:54:42,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:42,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 143 [2024-11-20 13:54:42,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:42,642 INFO L124 PetriNetUnfolderBase]: 18/201 cut-off events. [2024-11-20 13:54:42,643 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-20 13:54:42,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 201 events. 18/201 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 504 event pairs, 6 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 148. Up to 26 conditions per place. [2024-11-20 13:54:42,643 INFO L140 encePairwiseOnDemand]: 141/143 looper letters, 11 selfloop transitions, 1 changer transitions 16/119 dead transitions. [2024-11-20 13:54:42,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 119 transitions, 276 flow [2024-11-20 13:54:42,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:42,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:42,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2024-11-20 13:54:42,646 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9090909090909091 [2024-11-20 13:54:42,646 INFO L175 Difference]: Start difference. First operand has 122 places, 117 transitions, 242 flow. Second operand 3 states and 390 transitions. [2024-11-20 13:54:42,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 119 transitions, 276 flow [2024-11-20 13:54:42,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 119 transitions, 272 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:54:42,648 INFO L231 Difference]: Finished difference. Result has 121 places, 101 transitions, 208 flow [2024-11-20 13:54:42,648 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=208, PETRI_PLACES=121, PETRI_TRANSITIONS=101} [2024-11-20 13:54:42,649 INFO L277 CegarLoopForPetriNet]: 127 programPoint places, -6 predicate places. [2024-11-20 13:54:42,649 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 101 transitions, 208 flow [2024-11-20 13:54:42,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 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) [2024-11-20 13:54:42,649 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:42,649 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:54:42,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 13:54:42,650 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-20 13:54:42,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:42,650 INFO L85 PathProgramCache]: Analyzing trace with hash -542655182, now seen corresponding path program 1 times [2024-11-20 13:54:42,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:42,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274771091] [2024-11-20 13:54:42,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:42,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:42,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:42,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:42,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274771091] [2024-11-20 13:54:42,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274771091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:42,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:42,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:42,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003604535] [2024-11-20 13:54:42,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:42,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:42,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:42,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:42,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:42,746 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 143 [2024-11-20 13:54:42,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 101 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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) [2024-11-20 13:54:42,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:42,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 143 [2024-11-20 13:54:42,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:42,775 INFO L124 PetriNetUnfolderBase]: 20/206 cut-off events. [2024-11-20 13:54:42,776 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-20 13:54:42,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 206 events. 20/206 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 495 event pairs, 14 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 166. Up to 39 conditions per place. [2024-11-20 13:54:42,777 INFO L140 encePairwiseOnDemand]: 140/143 looper letters, 13 selfloop transitions, 2 changer transitions 0/103 dead transitions. [2024-11-20 13:54:42,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 103 transitions, 243 flow [2024-11-20 13:54:42,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:42,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:42,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2024-11-20 13:54:42,778 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8974358974358975 [2024-11-20 13:54:42,778 INFO L175 Difference]: Start difference. First operand has 121 places, 101 transitions, 208 flow. Second operand 3 states and 385 transitions. [2024-11-20 13:54:42,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 103 transitions, 243 flow [2024-11-20 13:54:42,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 103 transitions, 242 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:54:42,780 INFO L231 Difference]: Finished difference. Result has 107 places, 100 transitions, 209 flow [2024-11-20 13:54:42,780 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=209, PETRI_PLACES=107, PETRI_TRANSITIONS=100} [2024-11-20 13:54:42,780 INFO L277 CegarLoopForPetriNet]: 127 programPoint places, -20 predicate places. [2024-11-20 13:54:42,781 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 100 transitions, 209 flow [2024-11-20 13:54:42,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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) [2024-11-20 13:54:42,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:54:42,781 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:54:42,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 13:54:42,782 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-20 13:54:42,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:54:42,782 INFO L85 PathProgramCache]: Analyzing trace with hash 519206453, now seen corresponding path program 1 times [2024-11-20 13:54:42,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:54:42,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533816948] [2024-11-20 13:54:42,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:54:42,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:54:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:54:42,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:54:42,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:54:42,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533816948] [2024-11-20 13:54:42,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533816948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:54:42,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:54:42,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:54:42,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053097251] [2024-11-20 13:54:42,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:54:42,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:54:42,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:54:42,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:54:42,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:54:42,852 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 143 [2024-11-20 13:54:42,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 100 transitions, 209 flow. Second operand has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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) [2024-11-20 13:54:42,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:54:42,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 143 [2024-11-20 13:54:42,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:54:42,879 INFO L124 PetriNetUnfolderBase]: 11/181 cut-off events. [2024-11-20 13:54:42,879 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-20 13:54:42,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 181 events. 11/181 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 374 event pairs, 8 based on Foata normal form. 4/178 useless extension candidates. Maximal degree in co-relation 171. Up to 25 conditions per place. [2024-11-20 13:54:42,880 INFO L140 encePairwiseOnDemand]: 141/143 looper letters, 0 selfloop transitions, 0 changer transitions 102/102 dead transitions. [2024-11-20 13:54:42,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 102 transitions, 238 flow [2024-11-20 13:54:42,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:54:42,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:54:42,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2024-11-20 13:54:42,882 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9044289044289044 [2024-11-20 13:54:42,882 INFO L175 Difference]: Start difference. First operand has 107 places, 100 transitions, 209 flow. Second operand 3 states and 388 transitions. [2024-11-20 13:54:42,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 102 transitions, 238 flow [2024-11-20 13:54:42,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 102 transitions, 234 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:54:42,884 INFO L231 Difference]: Finished difference. Result has 106 places, 0 transitions, 0 flow [2024-11-20 13:54:42,885 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=106, PETRI_TRANSITIONS=0} [2024-11-20 13:54:42,885 INFO L277 CegarLoopForPetriNet]: 127 programPoint places, -21 predicate places. [2024-11-20 13:54:42,886 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 0 transitions, 0 flow [2024-11-20 13:54:42,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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) [2024-11-20 13:54:42,889 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2024-11-20 13:54:42,889 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-20 13:54:42,890 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-20 13:54:42,890 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-20 13:54:42,890 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-20 13:54:42,890 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-20 13:54:42,890 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2024-11-20 13:54:42,890 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2024-11-20 13:54:42,890 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-20 13:54:42,891 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-20 13:54:42,892 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-20 13:54:42,892 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-20 13:54:42,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 13:54:42,892 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-20 13:54:42,897 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 13:54:42,897 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 13:54:42,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 01:54:42 BasicIcfg [2024-11-20 13:54:42,903 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 13:54:42,903 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 13:54:42,903 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 13:54:42,903 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 13:54:42,904 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:54:41" (3/4) ... [2024-11-20 13:54:42,906 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 13:54:42,909 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-20 13:54:42,909 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-20 13:54:42,912 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-20 13:54:42,913 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-20 13:54:42,913 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-20 13:54:42,913 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-20 13:54:42,991 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 13:54:42,991 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 13:54:42,991 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 13:54:42,992 INFO L158 Benchmark]: Toolchain (without parser) took 1996.85ms. Allocated memory is still 165.7MB. Free memory was 99.6MB in the beginning and 62.0MB in the end (delta: 37.6MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2024-11-20 13:54:42,992 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 165.7MB. Free memory is still 123.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 13:54:42,992 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.86ms. Allocated memory is still 165.7MB. Free memory was 99.3MB in the beginning and 86.4MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-20 13:54:42,992 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.40ms. Allocated memory is still 165.7MB. Free memory was 86.4MB in the beginning and 84.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 13:54:42,992 INFO L158 Benchmark]: Boogie Preprocessor took 44.60ms. Allocated memory is still 165.7MB. Free memory was 84.6MB in the beginning and 139.5MB in the end (delta: -54.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-20 13:54:42,993 INFO L158 Benchmark]: RCFGBuilder took 398.96ms. Allocated memory is still 165.7MB. Free memory was 139.5MB in the beginning and 123.5MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-20 13:54:42,993 INFO L158 Benchmark]: TraceAbstraction took 1181.65ms. Allocated memory is still 165.7MB. Free memory was 122.7MB in the beginning and 67.3MB in the end (delta: 55.4MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. [2024-11-20 13:54:42,993 INFO L158 Benchmark]: Witness Printer took 88.12ms. Allocated memory is still 165.7MB. Free memory was 67.3MB in the beginning and 62.0MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-20 13:54:42,994 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 165.7MB. Free memory is still 123.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.86ms. Allocated memory is still 165.7MB. Free memory was 99.3MB in the beginning and 86.4MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.40ms. Allocated memory is still 165.7MB. Free memory was 86.4MB in the beginning and 84.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.60ms. Allocated memory is still 165.7MB. Free memory was 84.6MB in the beginning and 139.5MB in the end (delta: -54.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 398.96ms. Allocated memory is still 165.7MB. Free memory was 139.5MB in the beginning and 123.5MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1181.65ms. Allocated memory is still 165.7MB. Free memory was 122.7MB in the beginning and 67.3MB in the end (delta: 55.4MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. * Witness Printer took 88.12ms. Allocated memory is still 165.7MB. Free memory was 67.3MB in the beginning and 62.0MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: 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, 193 locations, 12 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: 1.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 118 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 191 IncrementalHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 17 mSDtfsCounter, 191 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=257occurred in iteration=0, InterpolantAutomatonStates: 18, 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, 0.3s InterpolantComputationTime, 328 NumberOfCodeBlocks, 328 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 322 ConstructedInterpolants, 0 QuantifiedInterpolants, 334 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-20 13:54:43,013 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