./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/11_fmaxsymopt-zero.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/11_fmaxsymopt-zero.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 44a70169ef8abd67c211072db1308f16df00422231dd8f14aa88bc39d0b023bb --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:26:23,659 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:26:23,720 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:26:23,727 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:26:23,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:26:23,763 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:26:23,764 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:26:23,764 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:26:23,765 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:26:23,766 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:26:23,766 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:26:23,766 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:26:23,767 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:26:23,768 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:26:23,768 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:26:23,769 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:26:23,769 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:26:23,770 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:26:23,770 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:26:23,770 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:26:23,770 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:26:23,774 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:26:23,774 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:26:23,774 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:26:23,774 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:26:23,775 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:26:23,775 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:26:23,775 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:26:23,775 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:26:23,775 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:26:23,775 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:26:23,775 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:26:23,776 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:26:23,776 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:26:23,776 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:26:23,776 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:26:23,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:26:23,777 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:26:23,778 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:26:23,778 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:26:23,778 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:26:23,779 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44a70169ef8abd67c211072db1308f16df00422231dd8f14aa88bc39d0b023bb [2024-11-20 13:26:23,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:26:24,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:26:24,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:26:24,027 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:26:24,028 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:26:24,029 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/11_fmaxsymopt-zero.i [2024-11-20 13:26:25,268 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:26:25,446 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:26:25,447 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/11_fmaxsymopt-zero.i [2024-11-20 13:26:25,458 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3b2c5bef/ad921c0292354130b5480b4445b8b16a/FLAGc4633b522 [2024-11-20 13:26:25,819 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3b2c5bef/ad921c0292354130b5480b4445b8b16a [2024-11-20 13:26:25,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:26:25,822 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:26:25,824 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:26:25,824 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:26:25,828 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:26:25,828 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:26:25" (1/1) ... [2024-11-20 13:26:25,829 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@153b78fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:25, skipping insertion in model container [2024-11-20 13:26:25,829 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:26:25" (1/1) ... [2024-11-20 13:26:25,866 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:26:26,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:26:26,192 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:26:26,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:26:26,268 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:26:26,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:26 WrapperNode [2024-11-20 13:26:26,269 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:26:26,270 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:26:26,270 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:26:26,270 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:26:26,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:26" (1/1) ... [2024-11-20 13:26:26,292 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:26" (1/1) ... [2024-11-20 13:26:26,313 INFO L138 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 93 [2024-11-20 13:26:26,313 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:26:26,314 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:26:26,314 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:26:26,314 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:26:26,322 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:26" (1/1) ... [2024-11-20 13:26:26,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:26" (1/1) ... [2024-11-20 13:26:26,324 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:26" (1/1) ... [2024-11-20 13:26:26,325 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:26" (1/1) ... [2024-11-20 13:26:26,332 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:26" (1/1) ... [2024-11-20 13:26:26,337 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:26" (1/1) ... [2024-11-20 13:26:26,339 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:26" (1/1) ... [2024-11-20 13:26:26,340 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:26" (1/1) ... [2024-11-20 13:26:26,342 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:26:26,343 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:26:26,343 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:26:26,343 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:26:26,344 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:26" (1/1) ... [2024-11-20 13:26:26,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:26:26,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:26:26,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 13:26:26,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 13:26:26,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 13:26:26,430 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-20 13:26:26,430 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-20 13:26:26,430 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 13:26:26,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:26:26,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:26:26,430 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 13:26:26,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:26:26,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:26:26,432 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:26:26,538 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:26:26,540 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:26:26,725 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:26:26,725 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:26:26,753 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:26:26,754 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 13:26:26,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:26:26 BoogieIcfgContainer [2024-11-20 13:26:26,755 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:26:26,757 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:26:26,757 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:26:26,760 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:26:26,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:26:25" (1/3) ... [2024-11-20 13:26:26,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34a6c981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:26:26, skipping insertion in model container [2024-11-20 13:26:26,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:26" (2/3) ... [2024-11-20 13:26:26,762 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34a6c981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:26:26, skipping insertion in model container [2024-11-20 13:26:26,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:26:26" (3/3) ... [2024-11-20 13:26:26,764 INFO L112 eAbstractionObserver]: Analyzing ICFG 11_fmaxsymopt-zero.i [2024-11-20 13:26:26,779 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:26:26,779 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-20 13:26:26,779 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:26:26,837 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:26:26,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 108 transitions, 220 flow [2024-11-20 13:26:26,932 INFO L124 PetriNetUnfolderBase]: 10/117 cut-off events. [2024-11-20 13:26:26,936 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:26:26,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 117 events. 10/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 136 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 81. Up to 4 conditions per place. [2024-11-20 13:26:26,943 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 108 transitions, 220 flow [2024-11-20 13:26:26,947 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 108 transitions, 220 flow [2024-11-20 13:26:26,957 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:26:26,964 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;@4b76370c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:26:26,964 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-20 13:26:26,983 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:26:26,983 INFO L124 PetriNetUnfolderBase]: 2/53 cut-off events. [2024-11-20 13:26:26,983 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:26:26,983 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:26,984 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-20 13:26:26,984 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-20 13:26:26,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:26,990 INFO L85 PathProgramCache]: Analyzing trace with hash -614596222, now seen corresponding path program 1 times [2024-11-20 13:26:26,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:26,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218088066] [2024-11-20 13:26:26,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:26,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:27,162 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:26:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:27,215 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:26:27,218 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:26:27,219 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-20 13:26:27,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-20 13:26:27,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-20 13:26:27,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-20 13:26:27,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-20 13:26:27,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-20 13:26:27,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-20 13:26:27,222 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-20 13:26:27,223 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-20 13:26:27,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:26:27,224 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-20 13:26:27,228 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 13:26:27,229 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-20 13:26:27,277 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:26:27,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 167 places, 179 transitions, 368 flow [2024-11-20 13:26:27,332 INFO L124 PetriNetUnfolderBase]: 19/199 cut-off events. [2024-11-20 13:26:27,334 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 13:26:27,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 199 events. 19/199 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 454 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 151. Up to 6 conditions per place. [2024-11-20 13:26:27,337 INFO L82 GeneralOperation]: Start removeDead. Operand has 167 places, 179 transitions, 368 flow [2024-11-20 13:26:27,339 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 167 places, 179 transitions, 368 flow [2024-11-20 13:26:27,342 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:26:27,343 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;@4b76370c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:26:27,344 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-20 13:26:27,358 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:26:27,358 INFO L124 PetriNetUnfolderBase]: 4/81 cut-off events. [2024-11-20 13:26:27,358 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 13:26:27,359 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:27,359 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 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] [2024-11-20 13:26:27,359 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-20 13:26:27,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:27,360 INFO L85 PathProgramCache]: Analyzing trace with hash 2111935072, now seen corresponding path program 1 times [2024-11-20 13:26:27,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:27,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494960516] [2024-11-20 13:26:27,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:27,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:27,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:27,395 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:26:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:27,416 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:26:27,417 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:26:27,417 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-20 13:26:27,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2024-11-20 13:26:27,420 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2024-11-20 13:26:27,420 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2024-11-20 13:26:27,420 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2024-11-20 13:26:27,420 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2024-11-20 13:26:27,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2024-11-20 13:26:27,421 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2024-11-20 13:26:27,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2024-11-20 13:26:27,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2024-11-20 13:26:27,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2024-11-20 13:26:27,423 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2024-11-20 13:26:27,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2024-11-20 13:26:27,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 13:26:27,424 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-20 13:26:27,425 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 13:26:27,425 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-20 13:26:27,479 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:26:27,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 232 places, 250 transitions, 518 flow [2024-11-20 13:26:27,536 INFO L124 PetriNetUnfolderBase]: 28/281 cut-off events. [2024-11-20 13:26:27,536 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-20 13:26:27,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 281 events. 28/281 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 846 event pairs, 0 based on Foata normal form. 0/237 useless extension candidates. Maximal degree in co-relation 221. Up to 8 conditions per place. [2024-11-20 13:26:27,544 INFO L82 GeneralOperation]: Start removeDead. Operand has 232 places, 250 transitions, 518 flow [2024-11-20 13:26:27,547 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 232 places, 250 transitions, 518 flow [2024-11-20 13:26:27,548 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:26:27,549 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;@4b76370c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:26:27,549 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-20 13:26:27,562 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:26:27,563 INFO L124 PetriNetUnfolderBase]: 7/116 cut-off events. [2024-11-20 13:26:27,563 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-20 13:26:27,563 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:27,563 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:26:27,564 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-20 13:26:27,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:27,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1059234158, now seen corresponding path program 1 times [2024-11-20 13:26:27,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:27,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245984233] [2024-11-20 13:26:27,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:27,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:27,597 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:26:27,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:27,643 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:26:27,644 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:26:27,644 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-11-20 13:26:27,644 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2024-11-20 13:26:27,645 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2024-11-20 13:26:27,645 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2024-11-20 13:26:27,645 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2024-11-20 13:26:27,645 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2024-11-20 13:26:27,645 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2024-11-20 13:26:27,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2024-11-20 13:26:27,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2024-11-20 13:26:27,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2024-11-20 13:26:27,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2024-11-20 13:26:27,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2024-11-20 13:26:27,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2024-11-20 13:26:27,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2024-11-20 13:26:27,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2024-11-20 13:26:27,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2024-11-20 13:26:27,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2024-11-20 13:26:27,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 13:26:27,648 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-20 13:26:27,649 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 13:26:27,649 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-20 13:26:27,715 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:26:27,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 297 places, 321 transitions, 670 flow [2024-11-20 13:26:27,795 INFO L124 PetriNetUnfolderBase]: 37/363 cut-off events. [2024-11-20 13:26:27,796 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-20 13:26:27,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 363 events. 37/363 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1268 event pairs, 0 based on Foata normal form. 0/305 useless extension candidates. Maximal degree in co-relation 291. Up to 10 conditions per place. [2024-11-20 13:26:27,802 INFO L82 GeneralOperation]: Start removeDead. Operand has 297 places, 321 transitions, 670 flow [2024-11-20 13:26:27,807 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 297 places, 321 transitions, 670 flow [2024-11-20 13:26:27,808 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:26:27,809 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;@4b76370c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:26:27,809 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-20 13:26:27,824 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:26:27,824 INFO L124 PetriNetUnfolderBase]: 9/135 cut-off events. [2024-11-20 13:26:27,824 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-20 13:26:27,824 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:27,824 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:26:27,825 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-20 13:26:27,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:27,825 INFO L85 PathProgramCache]: Analyzing trace with hash -2118607068, now seen corresponding path program 1 times [2024-11-20 13:26:27,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:27,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353661531] [2024-11-20 13:26:27,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:27,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:26:27,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:26:27,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:26:27,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353661531] [2024-11-20 13:26:27,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353661531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:26:27,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:26:27,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:26:27,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125680649] [2024-11-20 13:26:27,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:26:27,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:26:27,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:26:27,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:26:27,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:26:28,029 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 321 [2024-11-20 13:26:28,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 321 transitions, 670 flow. Second operand has 3 states, 3 states have (on average 282.3333333333333) internal successors, (847), 3 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:28,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:26:28,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 321 [2024-11-20 13:26:28,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:26:29,247 INFO L124 PetriNetUnfolderBase]: 1135/6759 cut-off events. [2024-11-20 13:26:29,248 INFO L125 PetriNetUnfolderBase]: For 1363/1363 co-relation queries the response was YES. [2024-11-20 13:26:29,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8578 conditions, 6759 events. 1135/6759 cut-off events. For 1363/1363 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 71470 event pairs, 690 based on Foata normal form. 1675/7448 useless extension candidates. Maximal degree in co-relation 2228. Up to 1091 conditions per place. [2024-11-20 13:26:29,358 INFO L140 encePairwiseOnDemand]: 300/321 looper letters, 27 selfloop transitions, 2 changer transitions 0/302 dead transitions. [2024-11-20 13:26:29,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 302 transitions, 711 flow [2024-11-20 13:26:29,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:26:29,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:26:29,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 905 transitions. [2024-11-20 13:26:29,374 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9397715472481828 [2024-11-20 13:26:29,376 INFO L175 Difference]: Start difference. First operand has 297 places, 321 transitions, 670 flow. Second operand 3 states and 905 transitions. [2024-11-20 13:26:29,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 302 transitions, 711 flow [2024-11-20 13:26:29,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 302 transitions, 699 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-11-20 13:26:29,387 INFO L231 Difference]: Finished difference. Result has 288 places, 293 transitions, 618 flow [2024-11-20 13:26:29,389 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=618, PETRI_PLACES=288, PETRI_TRANSITIONS=293} [2024-11-20 13:26:29,392 INFO L277 CegarLoopForPetriNet]: 297 programPoint places, -9 predicate places. [2024-11-20 13:26:29,393 INFO L471 AbstractCegarLoop]: Abstraction has has 288 places, 293 transitions, 618 flow [2024-11-20 13:26:29,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 282.3333333333333) internal successors, (847), 3 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:29,394 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:29,394 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:26:29,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 13:26:29,394 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-20 13:26:29,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:29,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1083943162, now seen corresponding path program 1 times [2024-11-20 13:26:29,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:29,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974606752] [2024-11-20 13:26:29,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:29,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:26:29,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:26:29,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:26:29,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974606752] [2024-11-20 13:26:29,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974606752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:26:29,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:26:29,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:26:29,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961935705] [2024-11-20 13:26:29,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:26:29,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:26:29,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:26:29,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:26:29,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:26:30,043 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 321 [2024-11-20 13:26:30,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 293 transitions, 618 flow. Second operand has 6 states, 6 states have (on average 276.6666666666667) internal successors, (1660), 6 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:30,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:26:30,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 321 [2024-11-20 13:26:30,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:26:31,616 INFO L124 PetriNetUnfolderBase]: 1956/10203 cut-off events. [2024-11-20 13:26:31,617 INFO L125 PetriNetUnfolderBase]: For 1335/1335 co-relation queries the response was YES. [2024-11-20 13:26:31,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13256 conditions, 10203 events. 1956/10203 cut-off events. For 1335/1335 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 114447 event pairs, 609 based on Foata normal form. 0/8885 useless extension candidates. Maximal degree in co-relation 6575. Up to 971 conditions per place. [2024-11-20 13:26:31,769 INFO L140 encePairwiseOnDemand]: 315/321 looper letters, 54 selfloop transitions, 6 changer transitions 0/328 dead transitions. [2024-11-20 13:26:31,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 328 transitions, 868 flow [2024-11-20 13:26:31,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:26:31,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:26:31,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1710 transitions. [2024-11-20 13:26:31,773 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8878504672897196 [2024-11-20 13:26:31,773 INFO L175 Difference]: Start difference. First operand has 288 places, 293 transitions, 618 flow. Second operand 6 states and 1710 transitions. [2024-11-20 13:26:31,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 328 transitions, 868 flow [2024-11-20 13:26:31,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 328 transitions, 866 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:26:31,780 INFO L231 Difference]: Finished difference. Result has 291 places, 292 transitions, 626 flow [2024-11-20 13:26:31,781 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=626, PETRI_PLACES=291, PETRI_TRANSITIONS=292} [2024-11-20 13:26:31,782 INFO L277 CegarLoopForPetriNet]: 297 programPoint places, -6 predicate places. [2024-11-20 13:26:31,782 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 292 transitions, 626 flow [2024-11-20 13:26:31,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 276.6666666666667) internal successors, (1660), 6 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:31,783 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:31,783 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:26:31,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 13:26:31,783 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-20 13:26:31,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:31,784 INFO L85 PathProgramCache]: Analyzing trace with hash 2112297515, now seen corresponding path program 1 times [2024-11-20 13:26:31,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:31,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145802165] [2024-11-20 13:26:31,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:31,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:31,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:31,795 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:26:31,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:31,806 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:26:31,806 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:26:31,806 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-20 13:26:31,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2024-11-20 13:26:31,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2024-11-20 13:26:31,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2024-11-20 13:26:31,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2024-11-20 13:26:31,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2024-11-20 13:26:31,807 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2024-11-20 13:26:31,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2024-11-20 13:26:31,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2024-11-20 13:26:31,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining) [2024-11-20 13:26:31,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2024-11-20 13:26:31,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2024-11-20 13:26:31,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2024-11-20 13:26:31,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2024-11-20 13:26:31,808 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2024-11-20 13:26:31,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2024-11-20 13:26:31,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2024-11-20 13:26:31,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2024-11-20 13:26:31,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2024-11-20 13:26:31,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2024-11-20 13:26:31,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2024-11-20 13:26:31,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 13:26:31,809 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-20 13:26:31,810 WARN L244 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 13:26:31,810 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-20 13:26:31,910 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:26:31,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 362 places, 392 transitions, 824 flow [2024-11-20 13:26:31,981 INFO L124 PetriNetUnfolderBase]: 46/445 cut-off events. [2024-11-20 13:26:31,981 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-20 13:26:31,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 471 conditions, 445 events. 46/445 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1692 event pairs, 0 based on Foata normal form. 0/373 useless extension candidates. Maximal degree in co-relation 376. Up to 12 conditions per place. [2024-11-20 13:26:31,989 INFO L82 GeneralOperation]: Start removeDead. Operand has 362 places, 392 transitions, 824 flow [2024-11-20 13:26:31,993 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 362 places, 392 transitions, 824 flow [2024-11-20 13:26:31,994 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:26:31,994 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;@4b76370c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:26:31,994 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-20 13:26:32,001 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:26:32,001 INFO L124 PetriNetUnfolderBase]: 7/128 cut-off events. [2024-11-20 13:26:32,001 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-20 13:26:32,001 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:32,001 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:26:32,001 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-20 13:26:32,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:32,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1502068832, now seen corresponding path program 1 times [2024-11-20 13:26:32,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:32,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431278017] [2024-11-20 13:26:32,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:32,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:26:32,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:26:32,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:26:32,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431278017] [2024-11-20 13:26:32,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431278017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:26:32,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:26:32,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:26:32,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493954570] [2024-11-20 13:26:32,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:26:32,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:26:32,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:26:32,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:26:32,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:26:32,055 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 392 [2024-11-20 13:26:32,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 392 transitions, 824 flow. Second operand has 3 states, 3 states have (on average 345.3333333333333) internal successors, (1036), 3 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:32,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:26:32,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 392 [2024-11-20 13:26:32,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:26:36,183 INFO L124 PetriNetUnfolderBase]: 4345/23799 cut-off events. [2024-11-20 13:26:36,183 INFO L125 PetriNetUnfolderBase]: For 6661/6661 co-relation queries the response was YES. [2024-11-20 13:26:36,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30479 conditions, 23799 events. 4345/23799 cut-off events. For 6661/6661 co-relation queries the response was YES. Maximal size of possible extension queue 568. Compared 313376 event pairs, 2796 based on Foata normal form. 6603/27022 useless extension candidates. Maximal degree in co-relation 8530. Up to 4007 conditions per place. [2024-11-20 13:26:36,796 INFO L140 encePairwiseOnDemand]: 367/392 looper letters, 33 selfloop transitions, 2 changer transitions 0/370 dead transitions. [2024-11-20 13:26:36,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 370 transitions, 882 flow [2024-11-20 13:26:36,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:26:36,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:26:36,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1108 transitions. [2024-11-20 13:26:36,803 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9421768707482994 [2024-11-20 13:26:36,803 INFO L175 Difference]: Start difference. First operand has 362 places, 392 transitions, 824 flow. Second operand 3 states and 1108 transitions. [2024-11-20 13:26:36,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 370 transitions, 882 flow [2024-11-20 13:26:36,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 370 transitions, 858 flow, removed 12 selfloop flow, removed 0 redundant places. [2024-11-20 13:26:36,813 INFO L231 Difference]: Finished difference. Result has 351 places, 358 transitions, 754 flow [2024-11-20 13:26:36,814 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, PETRI_DIFFERENCE_MINUEND_FLOW=742, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=754, PETRI_PLACES=351, PETRI_TRANSITIONS=358} [2024-11-20 13:26:36,816 INFO L277 CegarLoopForPetriNet]: 362 programPoint places, -11 predicate places. [2024-11-20 13:26:36,817 INFO L471 AbstractCegarLoop]: Abstraction has has 351 places, 358 transitions, 754 flow [2024-11-20 13:26:36,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 345.3333333333333) internal successors, (1036), 3 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:36,817 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:36,818 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:26:36,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 13:26:36,818 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-20 13:26:36,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:36,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1296174910, now seen corresponding path program 1 times [2024-11-20 13:26:36,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:36,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706107278] [2024-11-20 13:26:36,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:36,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:26:37,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:26:37,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:26:37,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706107278] [2024-11-20 13:26:37,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706107278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:26:37,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:26:37,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:26:37,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827723304] [2024-11-20 13:26:37,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:26:37,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:26:37,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:26:37,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:26:37,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:26:37,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 392 [2024-11-20 13:26:37,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 358 transitions, 754 flow. Second operand has 6 states, 6 states have (on average 339.6666666666667) internal successors, (2038), 6 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:37,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:26:37,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 392 [2024-11-20 13:26:37,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:26:43,394 INFO L124 PetriNetUnfolderBase]: 7356/32487 cut-off events. [2024-11-20 13:26:43,394 INFO L125 PetriNetUnfolderBase]: For 4926/4926 co-relation queries the response was YES. [2024-11-20 13:26:44,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43155 conditions, 32487 events. 7356/32487 cut-off events. For 4926/4926 co-relation queries the response was YES. Maximal size of possible extension queue 808. Compared 433216 event pairs, 2472 based on Foata normal form. 0/28430 useless extension candidates. Maximal degree in co-relation 21443. Up to 3563 conditions per place. [2024-11-20 13:26:44,509 INFO L140 encePairwiseOnDemand]: 386/392 looper letters, 69 selfloop transitions, 6 changer transitions 0/405 dead transitions. [2024-11-20 13:26:44,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 405 transitions, 1078 flow [2024-11-20 13:26:44,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:26:44,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:26:44,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2103 transitions. [2024-11-20 13:26:44,518 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8941326530612245 [2024-11-20 13:26:44,518 INFO L175 Difference]: Start difference. First operand has 351 places, 358 transitions, 754 flow. Second operand 6 states and 2103 transitions. [2024-11-20 13:26:44,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 405 transitions, 1078 flow [2024-11-20 13:26:44,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 405 transitions, 1076 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:26:44,531 INFO L231 Difference]: Finished difference. Result has 354 places, 357 transitions, 762 flow [2024-11-20 13:26:44,531 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=762, PETRI_PLACES=354, PETRI_TRANSITIONS=357} [2024-11-20 13:26:44,532 INFO L277 CegarLoopForPetriNet]: 362 programPoint places, -8 predicate places. [2024-11-20 13:26:44,532 INFO L471 AbstractCegarLoop]: Abstraction has has 354 places, 357 transitions, 762 flow [2024-11-20 13:26:44,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 339.6666666666667) internal successors, (2038), 6 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:44,534 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:44,534 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:26:44,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 13:26:44,537 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-20 13:26:44,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:44,538 INFO L85 PathProgramCache]: Analyzing trace with hash -473375276, now seen corresponding path program 1 times [2024-11-20 13:26:44,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:44,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184822874] [2024-11-20 13:26:44,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:44,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:44,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:26:44,581 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 13:26:44,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:26:44,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184822874] [2024-11-20 13:26:44,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184822874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:26:44,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:26:44,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:26:44,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423899958] [2024-11-20 13:26:44,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:26:44,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:26:44,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:26:44,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:26:44,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:26:44,606 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 392 [2024-11-20 13:26:44,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 357 transitions, 762 flow. Second operand has 3 states, 3 states have (on average 345.6666666666667) internal successors, (1037), 3 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:44,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:26:44,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 392 [2024-11-20 13:26:44,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:26:48,334 INFO L124 PetriNetUnfolderBase]: 4077/20387 cut-off events. [2024-11-20 13:26:48,334 INFO L125 PetriNetUnfolderBase]: For 2322/2322 co-relation queries the response was YES. [2024-11-20 13:26:48,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26027 conditions, 20387 events. 4077/20387 cut-off events. For 2322/2322 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 259817 event pairs, 2550 based on Foata normal form. 120/17590 useless extension candidates. Maximal degree in co-relation 25919. Up to 3994 conditions per place. [2024-11-20 13:26:48,858 INFO L140 encePairwiseOnDemand]: 389/392 looper letters, 32 selfloop transitions, 2 changer transitions 0/369 dead transitions. [2024-11-20 13:26:48,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 369 transitions, 869 flow [2024-11-20 13:26:48,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:26:48,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:26:48,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1064 transitions. [2024-11-20 13:26:48,861 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2024-11-20 13:26:48,861 INFO L175 Difference]: Start difference. First operand has 354 places, 357 transitions, 762 flow. Second operand 3 states and 1064 transitions. [2024-11-20 13:26:48,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 369 transitions, 869 flow [2024-11-20 13:26:48,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 369 transitions, 857 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 13:26:48,871 INFO L231 Difference]: Finished difference. Result has 352 places, 358 transitions, 762 flow [2024-11-20 13:26:48,872 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=762, PETRI_PLACES=352, PETRI_TRANSITIONS=358} [2024-11-20 13:26:48,872 INFO L277 CegarLoopForPetriNet]: 362 programPoint places, -10 predicate places. [2024-11-20 13:26:48,872 INFO L471 AbstractCegarLoop]: Abstraction has has 352 places, 358 transitions, 762 flow [2024-11-20 13:26:48,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 345.6666666666667) internal successors, (1037), 3 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:48,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:48,874 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:26:48,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 13:26:48,874 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-20 13:26:48,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:48,874 INFO L85 PathProgramCache]: Analyzing trace with hash -564147914, now seen corresponding path program 1 times [2024-11-20 13:26:48,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:48,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416164689] [2024-11-20 13:26:48,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:48,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:26:49,254 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 13:26:49,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:26:49,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416164689] [2024-11-20 13:26:49,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416164689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:26:49,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:26:49,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:26:49,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328774203] [2024-11-20 13:26:49,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:26:49,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:26:49,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:26:49,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:26:49,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:26:49,495 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 392 [2024-11-20 13:26:49,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 358 transitions, 762 flow. Second operand has 6 states, 6 states have (on average 339.8333333333333) internal successors, (2039), 6 states have internal predecessors, (2039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:49,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:26:49,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 392 [2024-11-20 13:26:49,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:26:55,531 INFO L124 PetriNetUnfolderBase]: 7184/32320 cut-off events. [2024-11-20 13:26:55,531 INFO L125 PetriNetUnfolderBase]: For 4516/4516 co-relation queries the response was YES. [2024-11-20 13:26:56,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42914 conditions, 32320 events. 7184/32320 cut-off events. For 4516/4516 co-relation queries the response was YES. Maximal size of possible extension queue 894. Compared 440097 event pairs, 2307 based on Foata normal form. 0/28068 useless extension candidates. Maximal degree in co-relation 42809. Up to 3552 conditions per place. [2024-11-20 13:26:56,334 INFO L140 encePairwiseOnDemand]: 386/392 looper letters, 65 selfloop transitions, 6 changer transitions 0/401 dead transitions. [2024-11-20 13:26:56,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 401 transitions, 1050 flow [2024-11-20 13:26:56,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:26:56,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:26:56,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2099 transitions. [2024-11-20 13:26:56,342 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8924319727891157 [2024-11-20 13:26:56,342 INFO L175 Difference]: Start difference. First operand has 352 places, 358 transitions, 762 flow. Second operand 6 states and 2099 transitions. [2024-11-20 13:26:56,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 401 transitions, 1050 flow [2024-11-20 13:26:56,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 401 transitions, 1048 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:26:56,352 INFO L231 Difference]: Finished difference. Result has 355 places, 357 transitions, 770 flow [2024-11-20 13:26:56,353 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=770, PETRI_PLACES=355, PETRI_TRANSITIONS=357} [2024-11-20 13:26:56,354 INFO L277 CegarLoopForPetriNet]: 362 programPoint places, -7 predicate places. [2024-11-20 13:26:56,354 INFO L471 AbstractCegarLoop]: Abstraction has has 355 places, 357 transitions, 770 flow [2024-11-20 13:26:56,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 339.8333333333333) internal successors, (2039), 6 states have internal predecessors, (2039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:56,355 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:56,355 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:26:56,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 13:26:56,356 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-20 13:26:56,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:56,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1657900214, now seen corresponding path program 1 times [2024-11-20 13:26:56,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:56,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875209345] [2024-11-20 13:26:56,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:56,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:56,365 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:26:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:56,377 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:26:56,377 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:26:56,378 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2024-11-20 13:26:56,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2024-11-20 13:26:56,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2024-11-20 13:26:56,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2024-11-20 13:26:56,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2024-11-20 13:26:56,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2024-11-20 13:26:56,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2024-11-20 13:26:56,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2024-11-20 13:26:56,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2024-11-20 13:26:56,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2024-11-20 13:26:56,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2024-11-20 13:26:56,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2024-11-20 13:26:56,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2024-11-20 13:26:56,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2024-11-20 13:26:56,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2024-11-20 13:26:56,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2024-11-20 13:26:56,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2024-11-20 13:26:56,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2024-11-20 13:26:56,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2024-11-20 13:26:56,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2024-11-20 13:26:56,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2024-11-20 13:26:56,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2024-11-20 13:26:56,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2024-11-20 13:26:56,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2024-11-20 13:26:56,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2024-11-20 13:26:56,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 13:26:56,381 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-20 13:26:56,381 WARN L244 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 13:26:56,381 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2024-11-20 13:26:56,426 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:26:56,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 427 places, 463 transitions, 980 flow [2024-11-20 13:26:56,489 INFO L124 PetriNetUnfolderBase]: 55/527 cut-off events. [2024-11-20 13:26:56,490 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-20 13:26:56,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 561 conditions, 527 events. 55/527 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2143 event pairs, 0 based on Foata normal form. 0/441 useless extension candidates. Maximal degree in co-relation 464. Up to 14 conditions per place. [2024-11-20 13:26:56,501 INFO L82 GeneralOperation]: Start removeDead. Operand has 427 places, 463 transitions, 980 flow [2024-11-20 13:26:56,506 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 427 places, 463 transitions, 980 flow [2024-11-20 13:26:56,507 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:26:56,507 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;@4b76370c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:26:56,507 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-20 13:26:56,513 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:26:56,514 INFO L124 PetriNetUnfolderBase]: 9/135 cut-off events. [2024-11-20 13:26:56,514 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-20 13:26:56,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:56,514 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:26:56,514 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-20 13:26:56,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:56,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1723244119, now seen corresponding path program 1 times [2024-11-20 13:26:56,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:56,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808188977] [2024-11-20 13:26:56,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:56,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:56,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:26:56,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:26:56,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:26:56,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808188977] [2024-11-20 13:26:56,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808188977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:26:56,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:26:56,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:26:56,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242298348] [2024-11-20 13:26:56,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:26:56,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:26:56,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:26:56,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:26:56,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:26:56,580 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 406 out of 463 [2024-11-20 13:26:56,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 463 transitions, 980 flow. Second operand has 3 states, 3 states have (on average 408.3333333333333) internal successors, (1225), 3 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:26:56,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:26:56,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 406 of 463 [2024-11-20 13:26:56,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand