./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing-2.i --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/goblint-regression/28-race_reach_61-invariant_racing-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3465c34fa1c26a5c7a3494350123ab41e5828c33cb08ac3f67b81737d460e559 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 12:34:02,915 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 12:34:02,984 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-12 12:34:02,991 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 12:34:02,992 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 12:34:03,020 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 12:34:03,020 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 12:34:03,021 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 12:34:03,021 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 12:34:03,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 12:34:03,023 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 12:34:03,024 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 12:34:03,024 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 12:34:03,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 12:34:03,026 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 12:34:03,027 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 12:34:03,027 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 12:34:03,027 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 12:34:03,027 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 12:34:03,027 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 12:34:03,028 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 12:34:03,028 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 12:34:03,029 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-12 12:34:03,029 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 12:34:03,029 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 12:34:03,029 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 12:34:03,030 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 12:34:03,030 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 12:34:03,031 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 12:34:03,031 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 12:34:03,032 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 12:34:03,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:34:03,032 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 12:34:03,032 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 12:34:03,033 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 12:34:03,033 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 12:34:03,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 12:34:03,033 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 12:34:03,034 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 12:34:03,034 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 12:34:03,034 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 12:34:03,038 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3465c34fa1c26a5c7a3494350123ab41e5828c33cb08ac3f67b81737d460e559 [2024-11-12 12:34:03,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 12:34:03,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 12:34:03,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 12:34:03,336 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 12:34:03,336 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 12:34:03,337 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing-2.i [2024-11-12 12:34:04,741 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 12:34:05,021 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 12:34:05,021 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing-2.i [2024-11-12 12:34:05,042 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f698ca1e8/466ffbee84ed4d87bdb7620e61c050e2/FLAG50f9930d2 [2024-11-12 12:34:05,320 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f698ca1e8/466ffbee84ed4d87bdb7620e61c050e2 [2024-11-12 12:34:05,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 12:34:05,324 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 12:34:05,326 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 12:34:05,327 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 12:34:05,332 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 12:34:05,333 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:34:05" (1/1) ... [2024-11-12 12:34:05,334 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad422d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:05, skipping insertion in model container [2024-11-12 12:34:05,334 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:34:05" (1/1) ... [2024-11-12 12:34:05,374 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 12:34:05,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:34:05,772 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 12:34:05,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:34:05,888 INFO L204 MainTranslator]: Completed translation [2024-11-12 12:34:05,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:05 WrapperNode [2024-11-12 12:34:05,888 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 12:34:05,890 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 12:34:05,890 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 12:34:05,890 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 12:34:05,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:05" (1/1) ... [2024-11-12 12:34:05,920 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:05" (1/1) ... [2024-11-12 12:34:05,947 INFO L138 Inliner]: procedures = 171, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 133 [2024-11-12 12:34:05,947 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 12:34:05,948 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 12:34:05,948 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 12:34:05,949 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 12:34:05,959 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:05" (1/1) ... [2024-11-12 12:34:05,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:05" (1/1) ... [2024-11-12 12:34:05,963 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:05" (1/1) ... [2024-11-12 12:34:05,965 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:05" (1/1) ... [2024-11-12 12:34:05,973 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:05" (1/1) ... [2024-11-12 12:34:05,977 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:05" (1/1) ... [2024-11-12 12:34:05,979 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:05" (1/1) ... [2024-11-12 12:34:05,981 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:05" (1/1) ... [2024-11-12 12:34:05,984 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 12:34:05,985 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 12:34:05,985 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 12:34:05,985 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 12:34:05,986 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:05" (1/1) ... [2024-11-12 12:34:05,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:34:06,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:34:06,020 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 12:34:06,024 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 12:34:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-12 12:34:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-12 12:34:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-12 12:34:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 12:34:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 12:34:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-12 12:34:06,068 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-12 12:34:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 12:34:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 12:34:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-12 12:34:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 12:34:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 12:34:06,071 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 12:34:06,190 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 12:34:06,192 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 12:34:06,491 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 12:34:06,492 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 12:34:06,543 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 12:34:06,543 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-12 12:34:06,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:34:06 BoogieIcfgContainer [2024-11-12 12:34:06,544 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 12:34:06,546 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 12:34:06,547 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 12:34:06,550 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 12:34:06,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:34:05" (1/3) ... [2024-11-12 12:34:06,551 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be16f30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:34:06, skipping insertion in model container [2024-11-12 12:34:06,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:34:05" (2/3) ... [2024-11-12 12:34:06,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be16f30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:34:06, skipping insertion in model container [2024-11-12 12:34:06,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:34:06" (3/3) ... [2024-11-12 12:34:06,555 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_61-invariant_racing-2.i [2024-11-12 12:34:06,571 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 12:34:06,571 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-12 12:34:06,571 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 12:34:06,648 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-12 12:34:06,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 187 transitions, 381 flow [2024-11-12 12:34:06,839 INFO L124 PetriNetUnfolderBase]: 32/286 cut-off events. [2024-11-12 12:34:06,839 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:34:06,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 286 events. 32/286 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1119 event pairs, 0 based on Foata normal form. 0/232 useless extension candidates. Maximal degree in co-relation 156. Up to 6 conditions per place. [2024-11-12 12:34:06,851 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 187 transitions, 381 flow [2024-11-12 12:34:06,859 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 170 places, 187 transitions, 381 flow [2024-11-12 12:34:06,873 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:34:06,883 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;@1d3df54a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:34:06,883 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-12 12:34:06,898 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:34:06,901 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2024-11-12 12:34:06,901 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:34:06,901 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:06,902 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] [2024-11-12 12:34:06,904 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-12 12:34:06,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:06,911 INFO L85 PathProgramCache]: Analyzing trace with hash 232964393, now seen corresponding path program 1 times [2024-11-12 12:34:06,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:06,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359306202] [2024-11-12 12:34:06,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:06,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:07,266 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 12:34:07,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:07,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359306202] [2024-11-12 12:34:07,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359306202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:07,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:34:07,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:34:07,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564653379] [2024-11-12 12:34:07,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:07,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:34:07,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:07,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:34:07,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:34:07,363 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 187 [2024-11-12 12:34:07,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 187 transitions, 381 flow. Second operand has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 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 12:34:07,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:07,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 187 [2024-11-12 12:34:07,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:07,583 INFO L124 PetriNetUnfolderBase]: 85/894 cut-off events. [2024-11-12 12:34:07,584 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-12 12:34:07,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1092 conditions, 894 events. 85/894 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5283 event pairs, 0 based on Foata normal form. 118/923 useless extension candidates. Maximal degree in co-relation 1016. Up to 184 conditions per place. [2024-11-12 12:34:07,596 INFO L140 encePairwiseOnDemand]: 166/187 looper letters, 28 selfloop transitions, 2 changer transitions 0/174 dead transitions. [2024-11-12 12:34:07,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 174 transitions, 415 flow [2024-11-12 12:34:07,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:34:07,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:34:07,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 491 transitions. [2024-11-12 12:34:07,615 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.875222816399287 [2024-11-12 12:34:07,618 INFO L175 Difference]: Start difference. First operand has 170 places, 187 transitions, 381 flow. Second operand 3 states and 491 transitions. [2024-11-12 12:34:07,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 174 transitions, 415 flow [2024-11-12 12:34:07,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 174 transitions, 415 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:34:07,630 INFO L231 Difference]: Finished difference. Result has 171 places, 167 transitions, 349 flow [2024-11-12 12:34:07,633 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=349, PETRI_PLACES=171, PETRI_TRANSITIONS=167} [2024-11-12 12:34:07,637 INFO L279 CegarLoopForPetriNet]: 170 programPoint places, 1 predicate places. [2024-11-12 12:34:07,638 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 167 transitions, 349 flow [2024-11-12 12:34:07,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 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 12:34:07,639 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:07,640 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] [2024-11-12 12:34:07,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 12:34:07,640 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-12 12:34:07,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:07,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1422501814, now seen corresponding path program 1 times [2024-11-12 12:34:07,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:07,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175029063] [2024-11-12 12:34:07,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:07,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:07,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:08,212 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 12:34:08,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:08,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175029063] [2024-11-12 12:34:08,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175029063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:08,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:34:08,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:34:08,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531148019] [2024-11-12 12:34:08,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:08,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:34:08,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:08,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:34:08,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:34:08,382 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 187 [2024-11-12 12:34:08,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 167 transitions, 349 flow. Second operand has 6 states, 6 states have (on average 134.5) internal successors, (807), 6 states have internal predecessors, (807), 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 12:34:08,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:08,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 187 [2024-11-12 12:34:08,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:08,676 INFO L124 PetriNetUnfolderBase]: 157/1045 cut-off events. [2024-11-12 12:34:08,676 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-12 12:34:08,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1426 conditions, 1045 events. 157/1045 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6670 event pairs, 102 based on Foata normal form. 0/953 useless extension candidates. Maximal degree in co-relation 1340. Up to 267 conditions per place. [2024-11-12 12:34:08,684 INFO L140 encePairwiseOnDemand]: 181/187 looper letters, 57 selfloop transitions, 5 changer transitions 0/194 dead transitions. [2024-11-12 12:34:08,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 194 transitions, 527 flow [2024-11-12 12:34:08,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:34:08,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:34:08,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 861 transitions. [2024-11-12 12:34:08,692 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.767379679144385 [2024-11-12 12:34:08,693 INFO L175 Difference]: Start difference. First operand has 171 places, 167 transitions, 349 flow. Second operand 6 states and 861 transitions. [2024-11-12 12:34:08,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 194 transitions, 527 flow [2024-11-12 12:34:08,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 194 transitions, 523 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:34:08,698 INFO L231 Difference]: Finished difference. Result has 173 places, 166 transitions, 353 flow [2024-11-12 12:34:08,701 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=353, PETRI_PLACES=173, PETRI_TRANSITIONS=166} [2024-11-12 12:34:08,702 INFO L279 CegarLoopForPetriNet]: 170 programPoint places, 3 predicate places. [2024-11-12 12:34:08,702 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 166 transitions, 353 flow [2024-11-12 12:34:08,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 134.5) internal successors, (807), 6 states have internal predecessors, (807), 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 12:34:08,705 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:08,705 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] [2024-11-12 12:34:08,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 12:34:08,705 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-12 12:34:08,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:08,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1991920438, now seen corresponding path program 1 times [2024-11-12 12:34:08,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:08,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031867379] [2024-11-12 12:34:08,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:08,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:08,766 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 12:34:08,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:08,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031867379] [2024-11-12 12:34:08,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031867379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:08,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:34:08,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:34:08,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277726295] [2024-11-12 12:34:08,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:08,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:34:08,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:08,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:34:08,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:34:08,812 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 187 [2024-11-12 12:34:08,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 166 transitions, 353 flow. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 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 12:34:08,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:08,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 187 [2024-11-12 12:34:08,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:09,099 INFO L124 PetriNetUnfolderBase]: 361/2125 cut-off events. [2024-11-12 12:34:09,099 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-12 12:34:09,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2944 conditions, 2125 events. 361/2125 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 15804 event pairs, 136 based on Foata normal form. 0/1923 useless extension candidates. Maximal degree in co-relation 2882. Up to 462 conditions per place. [2024-11-12 12:34:09,112 INFO L140 encePairwiseOnDemand]: 165/187 looper letters, 55 selfloop transitions, 16 changer transitions 0/198 dead transitions. [2024-11-12 12:34:09,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 198 transitions, 562 flow [2024-11-12 12:34:09,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:34:09,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:34:09,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 464 transitions. [2024-11-12 12:34:09,115 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8270944741532977 [2024-11-12 12:34:09,115 INFO L175 Difference]: Start difference. First operand has 173 places, 166 transitions, 353 flow. Second operand 3 states and 464 transitions. [2024-11-12 12:34:09,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 198 transitions, 562 flow [2024-11-12 12:34:09,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 198 transitions, 552 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:34:09,147 INFO L231 Difference]: Finished difference. Result has 172 places, 182 transitions, 483 flow [2024-11-12 12:34:09,148 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=483, PETRI_PLACES=172, PETRI_TRANSITIONS=182} [2024-11-12 12:34:09,149 INFO L279 CegarLoopForPetriNet]: 170 programPoint places, 2 predicate places. [2024-11-12 12:34:09,149 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 182 transitions, 483 flow [2024-11-12 12:34:09,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 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 12:34:09,151 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:09,151 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:09,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 12:34:09,151 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-12 12:34:09,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:09,153 INFO L85 PathProgramCache]: Analyzing trace with hash 361355840, now seen corresponding path program 1 times [2024-11-12 12:34:09,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:09,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948038320] [2024-11-12 12:34:09,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:09,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:09,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:34:09,187 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:34:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:34:09,228 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:34:09,230 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:34:09,231 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-12 12:34:09,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-12 12:34:09,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-12 12:34:09,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-12 12:34:09,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-12 12:34:09,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-12 12:34:09,237 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-12 12:34:09,237 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-12 12:34:09,237 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-12 12:34:09,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-12 12:34:09,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-12 12:34:09,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-12 12:34:09,238 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-12 12:34:09,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-12 12:34:09,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-12 12:34:09,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-12 12:34:09,239 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-12 12:34:09,240 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-12 12:34:09,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 12:34:09,240 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-12 12:34:09,243 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:34:09,244 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-12 12:34:09,277 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-12 12:34:09,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 220 places, 243 transitions, 502 flow [2024-11-12 12:34:09,328 INFO L124 PetriNetUnfolderBase]: 54/469 cut-off events. [2024-11-12 12:34:09,329 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-12 12:34:09,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 481 conditions, 469 events. 54/469 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2058 event pairs, 0 based on Foata normal form. 0/379 useless extension candidates. Maximal degree in co-relation 288. Up to 9 conditions per place. [2024-11-12 12:34:09,334 INFO L82 GeneralOperation]: Start removeDead. Operand has 220 places, 243 transitions, 502 flow [2024-11-12 12:34:09,341 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 220 places, 243 transitions, 502 flow [2024-11-12 12:34:09,342 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:34:09,344 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;@1d3df54a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:34:09,346 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-12 12:34:09,350 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:34:09,352 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2024-11-12 12:34:09,352 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:34:09,352 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:09,352 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] [2024-11-12 12:34:09,352 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-12 12:34:09,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:09,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1133942999, now seen corresponding path program 1 times [2024-11-12 12:34:09,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:09,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462240209] [2024-11-12 12:34:09,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:09,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:09,404 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 12:34:09,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:09,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462240209] [2024-11-12 12:34:09,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462240209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:09,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:34:09,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:34:09,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514145068] [2024-11-12 12:34:09,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:09,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:34:09,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:09,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:34:09,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:34:09,431 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 243 [2024-11-12 12:34:09,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 243 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 187.66666666666666) internal successors, (563), 3 states have internal predecessors, (563), 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 12:34:09,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:09,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 243 [2024-11-12 12:34:09,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:10,465 INFO L124 PetriNetUnfolderBase]: 1621/8070 cut-off events. [2024-11-12 12:34:10,466 INFO L125 PetriNetUnfolderBase]: For 87/91 co-relation queries the response was YES. [2024-11-12 12:34:10,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10588 conditions, 8070 events. 1621/8070 cut-off events. For 87/91 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 85393 event pairs, 686 based on Foata normal form. 1417/8554 useless extension candidates. Maximal degree in co-relation 1403. Up to 2462 conditions per place. [2024-11-12 12:34:10,534 INFO L140 encePairwiseOnDemand]: 216/243 looper letters, 38 selfloop transitions, 2 changer transitions 0/225 dead transitions. [2024-11-12 12:34:10,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 225 transitions, 546 flow [2024-11-12 12:34:10,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:34:10,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:34:10,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 630 transitions. [2024-11-12 12:34:10,536 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8641975308641975 [2024-11-12 12:34:10,536 INFO L175 Difference]: Start difference. First operand has 220 places, 243 transitions, 502 flow. Second operand 3 states and 630 transitions. [2024-11-12 12:34:10,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 225 transitions, 546 flow [2024-11-12 12:34:10,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 225 transitions, 546 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:34:10,542 INFO L231 Difference]: Finished difference. Result has 221 places, 218 transitions, 462 flow [2024-11-12 12:34:10,544 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=243, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=462, PETRI_PLACES=221, PETRI_TRANSITIONS=218} [2024-11-12 12:34:10,545 INFO L279 CegarLoopForPetriNet]: 220 programPoint places, 1 predicate places. [2024-11-12 12:34:10,545 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 218 transitions, 462 flow [2024-11-12 12:34:10,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 187.66666666666666) internal successors, (563), 3 states have internal predecessors, (563), 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 12:34:10,546 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:10,546 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] [2024-11-12 12:34:10,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 12:34:10,546 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-12 12:34:10,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:10,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1919525085, now seen corresponding path program 1 times [2024-11-12 12:34:10,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:10,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715873633] [2024-11-12 12:34:10,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:10,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:10,867 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 12:34:10,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:10,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715873633] [2024-11-12 12:34:10,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715873633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:10,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:34:10,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:34:10,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978668663] [2024-11-12 12:34:10,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:10,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:34:10,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:10,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:34:10,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:34:10,997 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 243 [2024-11-12 12:34:10,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 218 transitions, 462 flow. Second operand has 6 states, 6 states have (on average 175.5) internal successors, (1053), 6 states have internal predecessors, (1053), 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 12:34:10,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:11,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 243 [2024-11-12 12:34:11,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:12,455 INFO L124 PetriNetUnfolderBase]: 2772/10322 cut-off events. [2024-11-12 12:34:12,456 INFO L125 PetriNetUnfolderBase]: For 181/181 co-relation queries the response was YES. [2024-11-12 12:34:12,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14950 conditions, 10322 events. 2772/10322 cut-off events. For 181/181 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 109588 event pairs, 1354 based on Foata normal form. 0/9439 useless extension candidates. Maximal degree in co-relation 7517. Up to 3388 conditions per place. [2024-11-12 12:34:12,642 INFO L140 encePairwiseOnDemand]: 237/243 looper letters, 94 selfloop transitions, 6 changer transitions 0/273 dead transitions. [2024-11-12 12:34:12,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 273 transitions, 772 flow [2024-11-12 12:34:12,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:34:12,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:34:12,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1144 transitions. [2024-11-12 12:34:12,649 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7846364883401921 [2024-11-12 12:34:12,649 INFO L175 Difference]: Start difference. First operand has 221 places, 218 transitions, 462 flow. Second operand 6 states and 1144 transitions. [2024-11-12 12:34:12,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 273 transitions, 772 flow [2024-11-12 12:34:12,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 273 transitions, 770 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:34:12,655 INFO L231 Difference]: Finished difference. Result has 224 places, 217 transitions, 470 flow [2024-11-12 12:34:12,656 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=243, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=470, PETRI_PLACES=224, PETRI_TRANSITIONS=217} [2024-11-12 12:34:12,657 INFO L279 CegarLoopForPetriNet]: 220 programPoint places, 4 predicate places. [2024-11-12 12:34:12,657 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 217 transitions, 470 flow [2024-11-12 12:34:12,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.5) internal successors, (1053), 6 states have internal predecessors, (1053), 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 12:34:12,658 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:12,658 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] [2024-11-12 12:34:12,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 12:34:12,658 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-12 12:34:12,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:12,659 INFO L85 PathProgramCache]: Analyzing trace with hash -181576141, now seen corresponding path program 1 times [2024-11-12 12:34:12,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:12,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561194581] [2024-11-12 12:34:12,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:12,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:12,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:12,691 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 12:34:12,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:12,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561194581] [2024-11-12 12:34:12,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561194581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:12,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:34:12,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:34:12,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038262824] [2024-11-12 12:34:12,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:12,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:34:12,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:12,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:34:12,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:34:12,757 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 243 [2024-11-12 12:34:12,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 217 transitions, 470 flow. Second operand has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 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 12:34:12,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:12,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 243 [2024-11-12 12:34:12,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:18,155 INFO L124 PetriNetUnfolderBase]: 17343/55534 cut-off events. [2024-11-12 12:34:18,155 INFO L125 PetriNetUnfolderBase]: For 450/450 co-relation queries the response was YES. [2024-11-12 12:34:18,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83718 conditions, 55534 events. 17343/55534 cut-off events. For 450/450 co-relation queries the response was YES. Maximal size of possible extension queue 976. Compared 710630 event pairs, 6436 based on Foata normal form. 0/49625 useless extension candidates. Maximal degree in co-relation 69220. Up to 16484 conditions per place. [2024-11-12 12:34:18,594 INFO L140 encePairwiseOnDemand]: 210/243 looper letters, 84 selfloop transitions, 24 changer transitions 0/266 dead transitions. [2024-11-12 12:34:18,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 266 transitions, 795 flow [2024-11-12 12:34:18,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:34:18,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:34:18,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 594 transitions. [2024-11-12 12:34:18,597 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8148148148148148 [2024-11-12 12:34:18,597 INFO L175 Difference]: Start difference. First operand has 224 places, 217 transitions, 470 flow. Second operand 3 states and 594 transitions. [2024-11-12 12:34:18,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 266 transitions, 795 flow [2024-11-12 12:34:18,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 266 transitions, 783 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:34:18,606 INFO L231 Difference]: Finished difference. Result has 223 places, 241 transitions, 668 flow [2024-11-12 12:34:18,606 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=243, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=668, PETRI_PLACES=223, PETRI_TRANSITIONS=241} [2024-11-12 12:34:18,607 INFO L279 CegarLoopForPetriNet]: 220 programPoint places, 3 predicate places. [2024-11-12 12:34:18,609 INFO L471 AbstractCegarLoop]: Abstraction has has 223 places, 241 transitions, 668 flow [2024-11-12 12:34:18,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 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 12:34:18,610 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:18,610 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] [2024-11-12 12:34:18,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 12:34:18,610 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-12 12:34:18,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:18,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1992323094, now seen corresponding path program 1 times [2024-11-12 12:34:18,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:18,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195167762] [2024-11-12 12:34:18,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:18,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:18,707 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 12:34:18,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:18,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195167762] [2024-11-12 12:34:18,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195167762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:18,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:34:18,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:34:18,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549261728] [2024-11-12 12:34:18,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:18,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:34:18,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:18,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:34:18,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:34:18,746 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 243 [2024-11-12 12:34:18,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 241 transitions, 668 flow. Second operand has 5 states, 5 states have (on average 185.8) internal successors, (929), 5 states have internal predecessors, (929), 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 12:34:18,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:18,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 243 [2024-11-12 12:34:18,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:23,007 INFO L124 PetriNetUnfolderBase]: 9524/44343 cut-off events. [2024-11-12 12:34:23,008 INFO L125 PetriNetUnfolderBase]: For 3442/3702 co-relation queries the response was YES. [2024-11-12 12:34:23,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67021 conditions, 44343 events. 9524/44343 cut-off events. For 3442/3702 co-relation queries the response was YES. Maximal size of possible extension queue 804. Compared 615619 event pairs, 2620 based on Foata normal form. 8/40046 useless extension candidates. Maximal degree in co-relation 18664. Up to 9353 conditions per place. [2024-11-12 12:34:23,379 INFO L140 encePairwiseOnDemand]: 238/243 looper letters, 67 selfloop transitions, 5 changer transitions 0/278 dead transitions. [2024-11-12 12:34:23,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 278 transitions, 886 flow [2024-11-12 12:34:23,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:34:23,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:34:23,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1177 transitions. [2024-11-12 12:34:23,382 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8072702331961591 [2024-11-12 12:34:23,383 INFO L175 Difference]: Start difference. First operand has 223 places, 241 transitions, 668 flow. Second operand 6 states and 1177 transitions. [2024-11-12 12:34:23,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 278 transitions, 886 flow [2024-11-12 12:34:23,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 278 transitions, 838 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:34:23,413 INFO L231 Difference]: Finished difference. Result has 229 places, 243 transitions, 646 flow [2024-11-12 12:34:23,413 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=243, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=646, PETRI_PLACES=229, PETRI_TRANSITIONS=243} [2024-11-12 12:34:23,414 INFO L279 CegarLoopForPetriNet]: 220 programPoint places, 9 predicate places. [2024-11-12 12:34:23,415 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 243 transitions, 646 flow [2024-11-12 12:34:23,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 185.8) internal successors, (929), 5 states have internal predecessors, (929), 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 12:34:23,416 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:23,419 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] [2024-11-12 12:34:23,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 12:34:23,419 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-12 12:34:23,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:23,420 INFO L85 PathProgramCache]: Analyzing trace with hash -2093193768, now seen corresponding path program 1 times [2024-11-12 12:34:23,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:23,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193833759] [2024-11-12 12:34:23,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:23,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:23,481 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 12:34:23,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:23,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193833759] [2024-11-12 12:34:23,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193833759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:23,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:34:23,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:34:23,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520672754] [2024-11-12 12:34:23,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:23,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:34:23,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:23,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:34:23,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:34:23,507 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 243 [2024-11-12 12:34:23,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 243 transitions, 646 flow. Second operand has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 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 12:34:23,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:23,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 243 [2024-11-12 12:34:23,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:28,419 INFO L124 PetriNetUnfolderBase]: 12897/52119 cut-off events. [2024-11-12 12:34:28,419 INFO L125 PetriNetUnfolderBase]: For 920/1543 co-relation queries the response was YES. [2024-11-12 12:34:28,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77519 conditions, 52119 events. 12897/52119 cut-off events. For 920/1543 co-relation queries the response was YES. Maximal size of possible extension queue 1056. Compared 723091 event pairs, 6795 based on Foata normal form. 25/45951 useless extension candidates. Maximal degree in co-relation 77412. Up to 12907 conditions per place. [2024-11-12 12:34:28,819 INFO L140 encePairwiseOnDemand]: 232/243 looper letters, 58 selfloop transitions, 9 changer transitions 0/271 dead transitions. [2024-11-12 12:34:28,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 271 transitions, 838 flow [2024-11-12 12:34:28,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:34:28,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:34:28,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 612 transitions. [2024-11-12 12:34:28,821 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8395061728395061 [2024-11-12 12:34:28,822 INFO L175 Difference]: Start difference. First operand has 229 places, 243 transitions, 646 flow. Second operand 3 states and 612 transitions. [2024-11-12 12:34:28,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 271 transitions, 838 flow [2024-11-12 12:34:28,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 271 transitions, 832 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-12 12:34:28,834 INFO L231 Difference]: Finished difference. Result has 230 places, 248 transitions, 700 flow [2024-11-12 12:34:28,834 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=243, PETRI_DIFFERENCE_MINUEND_FLOW=632, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=700, PETRI_PLACES=230, PETRI_TRANSITIONS=248} [2024-11-12 12:34:28,835 INFO L279 CegarLoopForPetriNet]: 220 programPoint places, 10 predicate places. [2024-11-12 12:34:28,835 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 248 transitions, 700 flow [2024-11-12 12:34:28,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 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 12:34:28,836 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:28,836 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:28,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 12:34:28,836 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-12 12:34:28,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:28,837 INFO L85 PathProgramCache]: Analyzing trace with hash -373444778, now seen corresponding path program 1 times [2024-11-12 12:34:28,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:28,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56858489] [2024-11-12 12:34:28,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:28,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:34:28,873 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:34:28,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:34:28,904 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:34:28,904 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:34:28,905 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-12 12:34:28,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-12 12:34:28,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-12 12:34:28,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-12 12:34:28,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-12 12:34:28,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-12 12:34:28,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-11-12 12:34:28,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-12 12:34:28,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-12 12:34:28,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-12 12:34:28,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-12 12:34:28,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-12 12:34:28,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-12 12:34:28,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-12 12:34:28,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-12 12:34:28,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-12 12:34:28,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-12 12:34:28,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-12 12:34:28,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-12 12:34:28,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-12 12:34:28,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-12 12:34:28,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-12 12:34:28,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-12 12:34:28,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 12:34:28,911 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-12 12:34:28,911 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:34:28,912 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-12 12:34:28,955 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-12 12:34:28,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 270 places, 299 transitions, 625 flow [2024-11-12 12:34:29,079 INFO L124 PetriNetUnfolderBase]: 81/697 cut-off events. [2024-11-12 12:34:29,080 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-12 12:34:29,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 722 conditions, 697 events. 81/697 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3214 event pairs, 1 based on Foata normal form. 0/565 useless extension candidates. Maximal degree in co-relation 477. Up to 16 conditions per place. [2024-11-12 12:34:29,089 INFO L82 GeneralOperation]: Start removeDead. Operand has 270 places, 299 transitions, 625 flow [2024-11-12 12:34:29,096 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 270 places, 299 transitions, 625 flow [2024-11-12 12:34:29,097 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:34:29,097 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;@1d3df54a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:34:29,097 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-12 12:34:29,102 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:34:29,102 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2024-11-12 12:34:29,102 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:34:29,102 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:29,102 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] [2024-11-12 12:34:29,103 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-12 12:34:29,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:29,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1136755415, now seen corresponding path program 1 times [2024-11-12 12:34:29,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:29,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010581305] [2024-11-12 12:34:29,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:29,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:29,140 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 12:34:29,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:29,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010581305] [2024-11-12 12:34:29,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010581305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:29,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:34:29,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:34:29,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551766899] [2024-11-12 12:34:29,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:29,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:34:29,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:29,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:34:29,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:34:29,164 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 299 [2024-11-12 12:34:29,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 299 transitions, 625 flow. Second operand has 3 states, 3 states have (on average 228.66666666666666) internal successors, (686), 3 states have internal predecessors, (686), 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 12:34:29,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:29,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 299 [2024-11-12 12:34:29,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:37,299 INFO L124 PetriNetUnfolderBase]: 20295/73408 cut-off events. [2024-11-12 12:34:37,299 INFO L125 PetriNetUnfolderBase]: For 1272/1337 co-relation queries the response was YES. [2024-11-12 12:34:37,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101109 conditions, 73408 events. 20295/73408 cut-off events. For 1272/1337 co-relation queries the response was YES. Maximal size of possible extension queue 1366. Compared 1038010 event pairs, 12300 based on Foata normal form. 15724/80625 useless extension candidates. Maximal degree in co-relation 12982. Up to 27148 conditions per place. [2024-11-12 12:34:38,210 INFO L140 encePairwiseOnDemand]: 266/299 looper letters, 47 selfloop transitions, 2 changer transitions 0/275 dead transitions. [2024-11-12 12:34:38,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 275 transitions, 675 flow [2024-11-12 12:34:38,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:34:38,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:34:38,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 768 transitions. [2024-11-12 12:34:38,214 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8561872909698997 [2024-11-12 12:34:38,214 INFO L175 Difference]: Start difference. First operand has 270 places, 299 transitions, 625 flow. Second operand 3 states and 768 transitions. [2024-11-12 12:34:38,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 275 transitions, 675 flow [2024-11-12 12:34:38,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 275 transitions, 675 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:34:38,220 INFO L231 Difference]: Finished difference. Result has 271 places, 268 transitions, 573 flow [2024-11-12 12:34:38,221 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=561, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=573, PETRI_PLACES=271, PETRI_TRANSITIONS=268} [2024-11-12 12:34:38,222 INFO L279 CegarLoopForPetriNet]: 270 programPoint places, 1 predicate places. [2024-11-12 12:34:38,222 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 268 transitions, 573 flow [2024-11-12 12:34:38,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.66666666666666) internal successors, (686), 3 states have internal predecessors, (686), 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 12:34:38,223 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:38,223 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] [2024-11-12 12:34:38,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 12:34:38,223 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-12 12:34:38,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:38,224 INFO L85 PathProgramCache]: Analyzing trace with hash -260484440, now seen corresponding path program 1 times [2024-11-12 12:34:38,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:38,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515294266] [2024-11-12 12:34:38,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:38,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:38,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:38,479 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 12:34:38,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:38,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515294266] [2024-11-12 12:34:38,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515294266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:38,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:34:38,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:34:38,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202424089] [2024-11-12 12:34:38,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:38,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:34:38,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:38,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:34:38,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:34:38,585 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 299 [2024-11-12 12:34:38,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 268 transitions, 573 flow. Second operand has 6 states, 6 states have (on average 216.5) internal successors, (1299), 6 states have internal predecessors, (1299), 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 12:34:38,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:38,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 299 [2024-11-12 12:34:38,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:50,019 INFO L124 PetriNetUnfolderBase]: 35386/97492 cut-off events. [2024-11-12 12:34:50,019 INFO L125 PetriNetUnfolderBase]: For 2280/2280 co-relation queries the response was YES. [2024-11-12 12:34:50,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148532 conditions, 97492 events. 35386/97492 cut-off events. For 2280/2280 co-relation queries the response was YES. Maximal size of possible extension queue 1911. Compared 1305042 event pairs, 15132 based on Foata normal form. 0/90102 useless extension candidates. Maximal degree in co-relation 141098. Up to 37886 conditions per place. [2024-11-12 12:34:51,231 INFO L140 encePairwiseOnDemand]: 293/299 looper letters, 131 selfloop transitions, 6 changer transitions 0/351 dead transitions. [2024-11-12 12:34:51,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 351 transitions, 1013 flow [2024-11-12 12:34:51,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:34:51,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:34:51,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1427 transitions. [2024-11-12 12:34:51,234 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7954292084726867 [2024-11-12 12:34:51,235 INFO L175 Difference]: Start difference. First operand has 271 places, 268 transitions, 573 flow. Second operand 6 states and 1427 transitions. [2024-11-12 12:34:51,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 351 transitions, 1013 flow [2024-11-12 12:34:51,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 351 transitions, 1011 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:34:51,244 INFO L231 Difference]: Finished difference. Result has 274 places, 267 transitions, 581 flow [2024-11-12 12:34:51,245 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=581, PETRI_PLACES=274, PETRI_TRANSITIONS=267} [2024-11-12 12:34:51,245 INFO L279 CegarLoopForPetriNet]: 270 programPoint places, 4 predicate places. [2024-11-12 12:34:51,246 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 267 transitions, 581 flow [2024-11-12 12:34:51,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 216.5) internal successors, (1299), 6 states have internal predecessors, (1299), 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 12:34:51,247 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:51,247 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] [2024-11-12 12:34:51,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 12:34:51,247 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-12 12:34:51,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:51,248 INFO L85 PathProgramCache]: Analyzing trace with hash -16086316, now seen corresponding path program 1 times [2024-11-12 12:34:51,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:51,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869778334] [2024-11-12 12:34:51,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:51,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:51,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:51,275 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 12:34:51,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:51,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869778334] [2024-11-12 12:34:51,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869778334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:51,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:34:51,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:34:51,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458842312] [2024-11-12 12:34:51,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:51,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:34:51,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:51,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:34:51,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:34:51,348 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 299 [2024-11-12 12:34:51,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 267 transitions, 581 flow. Second operand has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 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 12:34:51,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:51,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 299 [2024-11-12 12:34:51,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand