./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-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 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-race.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 e8fb2378390cbb175981998688b8025d2c19e19b6063114f1b295e933a094bc5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 16:45:32,430 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 16:45:32,485 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 16:45:32,492 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 16:45:32,492 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 16:45:32,517 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 16:45:32,517 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 16:45:32,518 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 16:45:32,519 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 16:45:32,522 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 16:45:32,522 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 16:45:32,522 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 16:45:32,523 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 16:45:32,523 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 16:45:32,523 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 16:45:32,523 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 16:45:32,524 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 16:45:32,524 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 16:45:32,524 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 16:45:32,525 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 16:45:32,526 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 16:45:32,526 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 16:45:32,526 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 16:45:32,526 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 16:45:32,527 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 16:45:32,527 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 16:45:32,527 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 16:45:32,527 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 16:45:32,527 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 16:45:32,528 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 16:45:32,528 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 16:45:32,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 16:45:32,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 16:45:32,528 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 16:45:32,529 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 16:45:32,529 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 16:45:32,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 16:45:32,530 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 16:45:32,530 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 16:45:32,530 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 16:45:32,531 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 16:45:32,531 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8fb2378390cbb175981998688b8025d2c19e19b6063114f1b295e933a094bc5 [2024-10-14 16:45:32,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 16:45:32,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 16:45:32,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 16:45:32,794 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 16:45:32,794 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 16:45:32,795 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/11_fmaxsymopt-race.i [2024-10-14 16:45:34,149 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 16:45:34,364 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 16:45:34,364 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/11_fmaxsymopt-race.i [2024-10-14 16:45:34,375 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a415aa8ca/3d47d67f52b047738332e4f57bc99810/FLAGeb62bb4f5 [2024-10-14 16:45:34,390 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a415aa8ca/3d47d67f52b047738332e4f57bc99810 [2024-10-14 16:45:34,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 16:45:34,394 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 16:45:34,396 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 16:45:34,397 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 16:45:34,404 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 16:45:34,405 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:45:34" (1/1) ... [2024-10-14 16:45:34,407 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@156558a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:34, skipping insertion in model container [2024-10-14 16:45:34,408 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:45:34" (1/1) ... [2024-10-14 16:45:34,460 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 16:45:34,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 16:45:34,739 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 16:45:34,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 16:45:34,817 INFO L204 MainTranslator]: Completed translation [2024-10-14 16:45:34,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:34 WrapperNode [2024-10-14 16:45:34,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 16:45:34,819 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 16:45:34,819 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 16:45:34,819 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 16:45:34,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:34" (1/1) ... [2024-10-14 16:45:34,841 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:34" (1/1) ... [2024-10-14 16:45:34,862 INFO L138 Inliner]: procedures = 170, calls = 23, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 125 [2024-10-14 16:45:34,862 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 16:45:34,863 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 16:45:34,865 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 16:45:34,865 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 16:45:34,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:34" (1/1) ... [2024-10-14 16:45:34,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:34" (1/1) ... [2024-10-14 16:45:34,875 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:34" (1/1) ... [2024-10-14 16:45:34,875 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:34" (1/1) ... [2024-10-14 16:45:34,880 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:34" (1/1) ... [2024-10-14 16:45:34,883 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:34" (1/1) ... [2024-10-14 16:45:34,885 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:34" (1/1) ... [2024-10-14 16:45:34,886 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:34" (1/1) ... [2024-10-14 16:45:34,888 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 16:45:34,889 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 16:45:34,889 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 16:45:34,889 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 16:45:34,890 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:34" (1/1) ... [2024-10-14 16:45:34,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 16:45:34,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 16:45:34,914 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) [2024-10-14 16:45:34,916 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 [2024-10-14 16:45:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 16:45:34,954 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-14 16:45:34,954 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-14 16:45:34,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 16:45:34,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 16:45:34,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 16:45:34,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 16:45:34,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 16:45:34,955 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 16:45:35,048 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 16:45:35,050 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 16:45:35,235 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 16:45:35,236 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 16:45:35,301 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 16:45:35,301 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-14 16:45:35,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:45:35 BoogieIcfgContainer [2024-10-14 16:45:35,302 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 16:45:35,303 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 16:45:35,303 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 16:45:35,306 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 16:45:35,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:45:34" (1/3) ... [2024-10-14 16:45:35,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de6ef0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:45:35, skipping insertion in model container [2024-10-14 16:45:35,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:34" (2/3) ... [2024-10-14 16:45:35,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de6ef0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:45:35, skipping insertion in model container [2024-10-14 16:45:35,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:45:35" (3/3) ... [2024-10-14 16:45:35,309 INFO L112 eAbstractionObserver]: Analyzing ICFG 11_fmaxsymopt-race.i [2024-10-14 16:45:35,325 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 16:45:35,326 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-10-14 16:45:35,326 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 16:45:35,393 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 16:45:35,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 122 transitions, 248 flow [2024-10-14 16:45:35,466 INFO L124 PetriNetUnfolderBase]: 12/131 cut-off events. [2024-10-14 16:45:35,466 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 16:45:35,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 131 events. 12/131 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 214 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 83. Up to 4 conditions per place. [2024-10-14 16:45:35,473 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 122 transitions, 248 flow [2024-10-14 16:45:35,479 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 122 transitions, 248 flow [2024-10-14 16:45:35,488 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 16:45:35,495 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;@7b4dc2ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 16:45:35,496 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-10-14 16:45:35,510 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 16:45:35,510 INFO L124 PetriNetUnfolderBase]: 2/44 cut-off events. [2024-10-14 16:45:35,512 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 16:45:35,512 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:35,513 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] [2024-10-14 16:45:35,513 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-14 16:45:35,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:35,519 INFO L85 PathProgramCache]: Analyzing trace with hash -776435525, now seen corresponding path program 1 times [2024-10-14 16:45:35,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:35,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708632457] [2024-10-14 16:45:35,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:35,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:35,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:36,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:45:36,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:45:36,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708632457] [2024-10-14 16:45:36,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708632457] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:45:36,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:45:36,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:45:36,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568838669] [2024-10-14 16:45:36,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:45:36,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:45:36,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:45:36,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:45:36,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:45:36,345 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 122 [2024-10-14 16:45:36,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 122 transitions, 248 flow. Second operand has 6 states, 6 states have (on average 91.5) internal successors, (549), 6 states have internal predecessors, (549), 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) [2024-10-14 16:45:36,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:45:36,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 122 [2024-10-14 16:45:36,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:45:36,411 INFO L124 PetriNetUnfolderBase]: 5/109 cut-off events. [2024-10-14 16:45:36,412 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 16:45:36,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 109 events. 5/109 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 130 event pairs, 0 based on Foata normal form. 13/111 useless extension candidates. Maximal degree in co-relation 74. Up to 14 conditions per place. [2024-10-14 16:45:36,413 INFO L140 encePairwiseOnDemand]: 105/122 looper letters, 13 selfloop transitions, 5 changer transitions 0/105 dead transitions. [2024-10-14 16:45:36,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 105 transitions, 250 flow [2024-10-14 16:45:36,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 16:45:36,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 16:45:36,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 570 transitions. [2024-10-14 16:45:36,429 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7786885245901639 [2024-10-14 16:45:36,432 INFO L175 Difference]: Start difference. First operand has 114 places, 122 transitions, 248 flow. Second operand 6 states and 570 transitions. [2024-10-14 16:45:36,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 105 transitions, 250 flow [2024-10-14 16:45:36,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 105 transitions, 250 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 16:45:36,440 INFO L231 Difference]: Finished difference. Result has 108 places, 105 transitions, 224 flow [2024-10-14 16:45:36,442 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=224, PETRI_PLACES=108, PETRI_TRANSITIONS=105} [2024-10-14 16:45:36,447 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, -6 predicate places. [2024-10-14 16:45:36,447 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 105 transitions, 224 flow [2024-10-14 16:45:36,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 91.5) internal successors, (549), 6 states have internal predecessors, (549), 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) [2024-10-14 16:45:36,448 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:36,448 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] [2024-10-14 16:45:36,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 16:45:36,449 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-14 16:45:36,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:36,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1386801979, now seen corresponding path program 1 times [2024-10-14 16:45:36,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:36,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288253579] [2024-10-14 16:45:36,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:36,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:36,490 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 16:45:36,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:45:36,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288253579] [2024-10-14 16:45:36,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288253579] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:45:36,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:45:36,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 16:45:36,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326815425] [2024-10-14 16:45:36,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:45:36,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:45:36,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:45:36,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:45:36,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:45:36,515 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 122 [2024-10-14 16:45:36,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 105 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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) [2024-10-14 16:45:36,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:45:36,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 122 [2024-10-14 16:45:36,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:45:36,541 INFO L124 PetriNetUnfolderBase]: 5/121 cut-off events. [2024-10-14 16:45:36,541 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-14 16:45:36,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 121 events. 5/121 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 126 event pairs, 0 based on Foata normal form. 1/112 useless extension candidates. Maximal degree in co-relation 90. Up to 9 conditions per place. [2024-10-14 16:45:36,542 INFO L140 encePairwiseOnDemand]: 119/122 looper letters, 7 selfloop transitions, 2 changer transitions 0/106 dead transitions. [2024-10-14 16:45:36,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 106 transitions, 246 flow [2024-10-14 16:45:36,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:45:36,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:45:36,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2024-10-14 16:45:36,548 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.855191256830601 [2024-10-14 16:45:36,548 INFO L175 Difference]: Start difference. First operand has 108 places, 105 transitions, 224 flow. Second operand 3 states and 313 transitions. [2024-10-14 16:45:36,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 106 transitions, 246 flow [2024-10-14 16:45:36,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 106 transitions, 234 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 16:45:36,554 INFO L231 Difference]: Finished difference. Result has 106 places, 106 transitions, 226 flow [2024-10-14 16:45:36,555 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=106, PETRI_TRANSITIONS=106} [2024-10-14 16:45:36,555 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, -8 predicate places. [2024-10-14 16:45:36,555 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 106 transitions, 226 flow [2024-10-14 16:45:36,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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) [2024-10-14 16:45:36,556 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:36,556 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] [2024-10-14 16:45:36,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 16:45:36,556 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-14 16:45:36,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:36,558 INFO L85 PathProgramCache]: Analyzing trace with hash 540851415, now seen corresponding path program 1 times [2024-10-14 16:45:36,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:36,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724362111] [2024-10-14 16:45:36,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:36,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:36,645 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 16:45:36,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:45:36,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724362111] [2024-10-14 16:45:36,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724362111] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 16:45:36,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939050726] [2024-10-14 16:45:36,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:36,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:45:36,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 16:45:36,649 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 16:45:36,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 16:45:36,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:36,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 16:45:36,733 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 16:45:36,810 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 16:45:36,810 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 16:45:36,849 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 16:45:36,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939050726] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 16:45:36,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 16:45:36,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-14 16:45:36,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681508322] [2024-10-14 16:45:36,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 16:45:36,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 16:45:36,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:45:36,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 16:45:36,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-14 16:45:36,915 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 122 [2024-10-14 16:45:36,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 106 transitions, 226 flow. Second operand has 10 states, 10 states have (on average 99.9) internal successors, (999), 10 states have internal predecessors, (999), 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) [2024-10-14 16:45:36,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:45:36,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 122 [2024-10-14 16:45:36,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:45:36,989 INFO L124 PetriNetUnfolderBase]: 5/136 cut-off events. [2024-10-14 16:45:36,989 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-14 16:45:36,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 136 events. 5/136 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 event pairs, 0 based on Foata normal form. 2/128 useless extension candidates. Maximal degree in co-relation 125. Up to 9 conditions per place. [2024-10-14 16:45:36,992 INFO L140 encePairwiseOnDemand]: 116/122 looper letters, 11 selfloop transitions, 9 changer transitions 0/114 dead transitions. [2024-10-14 16:45:36,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 114 transitions, 284 flow [2024-10-14 16:45:36,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 16:45:36,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 16:45:36,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 904 transitions. [2024-10-14 16:45:36,996 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8233151183970856 [2024-10-14 16:45:36,996 INFO L175 Difference]: Start difference. First operand has 106 places, 106 transitions, 226 flow. Second operand 9 states and 904 transitions. [2024-10-14 16:45:36,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 114 transitions, 284 flow [2024-10-14 16:45:36,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 114 transitions, 282 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 16:45:37,000 INFO L231 Difference]: Finished difference. Result has 116 places, 112 transitions, 274 flow [2024-10-14 16:45:37,000 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=274, PETRI_PLACES=116, PETRI_TRANSITIONS=112} [2024-10-14 16:45:37,000 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 2 predicate places. [2024-10-14 16:45:37,000 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 112 transitions, 274 flow [2024-10-14 16:45:37,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 99.9) internal successors, (999), 10 states have internal predecessors, (999), 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) [2024-10-14 16:45:37,001 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:37,002 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-14 16:45:37,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 16:45:37,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:45:37,207 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-14 16:45:37,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:37,207 INFO L85 PathProgramCache]: Analyzing trace with hash -524871785, now seen corresponding path program 2 times [2024-10-14 16:45:37,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:37,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576395119] [2024-10-14 16:45:37,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:37,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:37,378 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 16:45:37,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:45:37,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576395119] [2024-10-14 16:45:37,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576395119] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 16:45:37,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66488536] [2024-10-14 16:45:37,380 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 16:45:37,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:45:37,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 16:45:37,385 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 16:45:37,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 16:45:37,464 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 16:45:37,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 16:45:37,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 16:45:37,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 16:45:37,548 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 16:45:37,548 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 16:45:37,663 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 16:45:37,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66488536] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 16:45:37,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 16:45:37,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-10-14 16:45:37,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237430685] [2024-10-14 16:45:37,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 16:45:37,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 16:45:37,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:45:37,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 16:45:37,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-10-14 16:45:37,789 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 122 [2024-10-14 16:45:37,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 112 transitions, 274 flow. Second operand has 15 states, 15 states have (on average 100.06666666666666) internal successors, (1501), 15 states have internal predecessors, (1501), 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) [2024-10-14 16:45:37,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:45:37,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 122 [2024-10-14 16:45:37,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:45:37,948 INFO L124 PetriNetUnfolderBase]: 5/175 cut-off events. [2024-10-14 16:45:37,949 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-10-14 16:45:37,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 175 events. 5/175 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 event pairs, 0 based on Foata normal form. 3/168 useless extension candidates. Maximal degree in co-relation 180. Up to 9 conditions per place. [2024-10-14 16:45:37,950 INFO L140 encePairwiseOnDemand]: 116/122 looper letters, 14 selfloop transitions, 18 changer transitions 0/126 dead transitions. [2024-10-14 16:45:37,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 126 transitions, 412 flow [2024-10-14 16:45:37,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-14 16:45:37,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-10-14 16:45:37,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1799 transitions. [2024-10-14 16:45:37,953 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.819216757741348 [2024-10-14 16:45:37,953 INFO L175 Difference]: Start difference. First operand has 116 places, 112 transitions, 274 flow. Second operand 18 states and 1799 transitions. [2024-10-14 16:45:37,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 126 transitions, 412 flow [2024-10-14 16:45:37,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 126 transitions, 400 flow, removed 5 selfloop flow, removed 1 redundant places. [2024-10-14 16:45:37,957 INFO L231 Difference]: Finished difference. Result has 136 places, 122 transitions, 374 flow [2024-10-14 16:45:37,958 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=374, PETRI_PLACES=136, PETRI_TRANSITIONS=122} [2024-10-14 16:45:37,960 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 22 predicate places. [2024-10-14 16:45:37,960 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 122 transitions, 374 flow [2024-10-14 16:45:37,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 100.06666666666666) internal successors, (1501), 15 states have internal predecessors, (1501), 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) [2024-10-14 16:45:37,961 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:37,961 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-10-14 16:45:37,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 16:45:38,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-10-14 16:45:38,167 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-14 16:45:38,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:38,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1405643909, now seen corresponding path program 3 times [2024-10-14 16:45:38,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:38,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402719128] [2024-10-14 16:45:38,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:38,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:45:38,216 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 16:45:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:45:38,262 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 16:45:38,263 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 16:45:38,263 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-10-14 16:45:38,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-10-14 16:45:38,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-10-14 16:45:38,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-10-14 16:45:38,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-10-14 16:45:38,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-10-14 16:45:38,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-10-14 16:45:38,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-10-14 16:45:38,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-10-14 16:45:38,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-10-14 16:45:38,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-10-14 16:45:38,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-10-14 16:45:38,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-10-14 16:45:38,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-10-14 16:45:38,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-10-14 16:45:38,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-10-14 16:45:38,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-10-14 16:45:38,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-10-14 16:45:38,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 16:45:38,270 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2024-10-14 16:45:38,274 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-14 16:45:38,274 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-14 16:45:38,304 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 16:45:38,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 181 places, 195 transitions, 400 flow [2024-10-14 16:45:38,327 INFO L124 PetriNetUnfolderBase]: 21/215 cut-off events. [2024-10-14 16:45:38,328 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-14 16:45:38,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 215 events. 21/215 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 545 event pairs, 0 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 155. Up to 6 conditions per place. [2024-10-14 16:45:38,331 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 195 transitions, 400 flow [2024-10-14 16:45:38,333 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 181 places, 195 transitions, 400 flow [2024-10-14 16:45:38,334 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 16:45:38,334 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;@7b4dc2ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 16:45:38,334 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-10-14 16:45:38,337 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 16:45:38,337 INFO L124 PetriNetUnfolderBase]: 2/44 cut-off events. [2024-10-14 16:45:38,337 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 16:45:38,337 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:38,337 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] [2024-10-14 16:45:38,337 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-14 16:45:38,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:38,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1444602942, now seen corresponding path program 1 times [2024-10-14 16:45:38,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:38,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512477876] [2024-10-14 16:45:38,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:38,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:38,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:45:38,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:45:38,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512477876] [2024-10-14 16:45:38,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512477876] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:45:38,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:45:38,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:45:38,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506320961] [2024-10-14 16:45:38,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:45:38,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:45:38,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:45:38,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:45:38,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:45:38,651 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 195 [2024-10-14 16:45:38,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 195 transitions, 400 flow. Second operand has 6 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 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) [2024-10-14 16:45:38,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:45:38,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 195 [2024-10-14 16:45:38,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:45:38,740 INFO L124 PetriNetUnfolderBase]: 90/590 cut-off events. [2024-10-14 16:45:38,741 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-10-14 16:45:38,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 746 conditions, 590 events. 90/590 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3356 event pairs, 42 based on Foata normal form. 124/618 useless extension candidates. Maximal degree in co-relation 311. Up to 125 conditions per place. [2024-10-14 16:45:38,747 INFO L140 encePairwiseOnDemand]: 170/195 looper letters, 20 selfloop transitions, 5 changer transitions 0/168 dead transitions. [2024-10-14 16:45:38,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 168 transitions, 396 flow [2024-10-14 16:45:38,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 16:45:38,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 16:45:38,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 927 transitions. [2024-10-14 16:45:38,749 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7923076923076923 [2024-10-14 16:45:38,749 INFO L175 Difference]: Start difference. First operand has 181 places, 195 transitions, 400 flow. Second operand 6 states and 927 transitions. [2024-10-14 16:45:38,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 168 transitions, 396 flow [2024-10-14 16:45:38,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 168 transitions, 396 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 16:45:38,752 INFO L231 Difference]: Finished difference. Result has 169 places, 168 transitions, 356 flow [2024-10-14 16:45:38,753 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=356, PETRI_PLACES=169, PETRI_TRANSITIONS=168} [2024-10-14 16:45:38,755 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, -12 predicate places. [2024-10-14 16:45:38,755 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 168 transitions, 356 flow [2024-10-14 16:45:38,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 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) [2024-10-14 16:45:38,756 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:38,756 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] [2024-10-14 16:45:38,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 16:45:38,757 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-14 16:45:38,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:38,757 INFO L85 PathProgramCache]: Analyzing trace with hash -562009178, now seen corresponding path program 1 times [2024-10-14 16:45:38,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:38,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265771188] [2024-10-14 16:45:38,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:38,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:38,781 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-14 16:45:38,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:45:38,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265771188] [2024-10-14 16:45:38,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265771188] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:45:38,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:45:38,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 16:45:38,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312911978] [2024-10-14 16:45:38,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:45:38,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:45:38,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:45:38,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:45:38,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:45:38,804 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 195 [2024-10-14 16:45:38,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 168 transitions, 356 flow. Second operand has 3 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 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) [2024-10-14 16:45:38,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:45:38,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 195 [2024-10-14 16:45:38,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:45:38,841 INFO L124 PetriNetUnfolderBase]: 23/336 cut-off events. [2024-10-14 16:45:38,841 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-10-14 16:45:38,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 336 events. 23/336 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1146 event pairs, 6 based on Foata normal form. 1/296 useless extension candidates. Maximal degree in co-relation 329. Up to 24 conditions per place. [2024-10-14 16:45:38,844 INFO L140 encePairwiseOnDemand]: 192/195 looper letters, 10 selfloop transitions, 2 changer transitions 0/169 dead transitions. [2024-10-14 16:45:38,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 169 transitions, 384 flow [2024-10-14 16:45:38,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:45:38,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:45:38,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 499 transitions. [2024-10-14 16:45:38,846 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.852991452991453 [2024-10-14 16:45:38,846 INFO L175 Difference]: Start difference. First operand has 169 places, 168 transitions, 356 flow. Second operand 3 states and 499 transitions. [2024-10-14 16:45:38,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 169 transitions, 384 flow [2024-10-14 16:45:38,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 169 transitions, 372 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 16:45:38,848 INFO L231 Difference]: Finished difference. Result has 167 places, 169 transitions, 358 flow [2024-10-14 16:45:38,849 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=167, PETRI_TRANSITIONS=169} [2024-10-14 16:45:38,849 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, -14 predicate places. [2024-10-14 16:45:38,849 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 169 transitions, 358 flow [2024-10-14 16:45:38,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 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) [2024-10-14 16:45:38,850 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:38,850 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:45:38,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 16:45:38,850 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-14 16:45:38,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:38,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1070939185, now seen corresponding path program 1 times [2024-10-14 16:45:38,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:38,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522897485] [2024-10-14 16:45:38,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:38,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:38,897 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-14 16:45:38,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:45:38,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522897485] [2024-10-14 16:45:38,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522897485] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 16:45:38,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798271803] [2024-10-14 16:45:38,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:38,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:45:38,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 16:45:38,901 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 16:45:38,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 16:45:38,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:38,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 16:45:38,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 16:45:39,038 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-14 16:45:39,038 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 16:45:39,077 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-14 16:45:39,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798271803] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 16:45:39,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 16:45:39,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-14 16:45:39,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782506131] [2024-10-14 16:45:39,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 16:45:39,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 16:45:39,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:45:39,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 16:45:39,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-14 16:45:39,136 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 195 [2024-10-14 16:45:39,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 169 transitions, 358 flow. Second operand has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 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) [2024-10-14 16:45:39,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:45:39,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 195 [2024-10-14 16:45:39,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:45:39,225 INFO L124 PetriNetUnfolderBase]: 23/351 cut-off events. [2024-10-14 16:45:39,226 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-10-14 16:45:39,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409 conditions, 351 events. 23/351 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1125 event pairs, 6 based on Foata normal form. 2/312 useless extension candidates. Maximal degree in co-relation 364. Up to 24 conditions per place. [2024-10-14 16:45:39,228 INFO L140 encePairwiseOnDemand]: 189/195 looper letters, 14 selfloop transitions, 9 changer transitions 0/177 dead transitions. [2024-10-14 16:45:39,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 177 transitions, 422 flow [2024-10-14 16:45:39,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 16:45:39,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 16:45:39,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1456 transitions. [2024-10-14 16:45:39,231 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8296296296296296 [2024-10-14 16:45:39,232 INFO L175 Difference]: Start difference. First operand has 167 places, 169 transitions, 358 flow. Second operand 9 states and 1456 transitions. [2024-10-14 16:45:39,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 177 transitions, 422 flow [2024-10-14 16:45:39,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 177 transitions, 420 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 16:45:39,235 INFO L231 Difference]: Finished difference. Result has 177 places, 175 transitions, 406 flow [2024-10-14 16:45:39,236 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=406, PETRI_PLACES=177, PETRI_TRANSITIONS=175} [2024-10-14 16:45:39,236 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, -4 predicate places. [2024-10-14 16:45:39,237 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 175 transitions, 406 flow [2024-10-14 16:45:39,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 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) [2024-10-14 16:45:39,239 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:39,239 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-14 16:45:39,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 16:45:39,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:45:39,440 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-14 16:45:39,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:39,440 INFO L85 PathProgramCache]: Analyzing trace with hash 456379985, now seen corresponding path program 2 times [2024-10-14 16:45:39,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:39,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506202216] [2024-10-14 16:45:39,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:39,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:39,579 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-14 16:45:39,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:45:39,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506202216] [2024-10-14 16:45:39,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506202216] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 16:45:39,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018808510] [2024-10-14 16:45:39,580 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 16:45:39,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:45:39,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 16:45:39,584 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 16:45:39,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 16:45:39,675 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 16:45:39,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 16:45:39,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 16:45:39,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 16:45:39,743 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-14 16:45:39,743 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 16:45:39,842 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-14 16:45:39,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018808510] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 16:45:39,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 16:45:39,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-10-14 16:45:39,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229724815] [2024-10-14 16:45:39,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 16:45:39,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 16:45:39,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:45:39,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 16:45:39,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-10-14 16:45:39,926 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 195 [2024-10-14 16:45:39,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 175 transitions, 406 flow. Second operand has 15 states, 15 states have (on average 161.13333333333333) internal successors, (2417), 15 states have internal predecessors, (2417), 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) [2024-10-14 16:45:39,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:45:39,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 195 [2024-10-14 16:45:39,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:45:40,106 INFO L124 PetriNetUnfolderBase]: 23/390 cut-off events. [2024-10-14 16:45:40,106 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-10-14 16:45:40,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 390 events. 23/390 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1124 event pairs, 6 based on Foata normal form. 3/352 useless extension candidates. Maximal degree in co-relation 326. Up to 24 conditions per place. [2024-10-14 16:45:40,109 INFO L140 encePairwiseOnDemand]: 189/195 looper letters, 17 selfloop transitions, 18 changer transitions 0/189 dead transitions. [2024-10-14 16:45:40,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 189 transitions, 550 flow [2024-10-14 16:45:40,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-14 16:45:40,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-10-14 16:45:40,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2900 transitions. [2024-10-14 16:45:40,114 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8262108262108262 [2024-10-14 16:45:40,114 INFO L175 Difference]: Start difference. First operand has 177 places, 175 transitions, 406 flow. Second operand 18 states and 2900 transitions. [2024-10-14 16:45:40,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 189 transitions, 550 flow [2024-10-14 16:45:40,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 189 transitions, 538 flow, removed 5 selfloop flow, removed 1 redundant places. [2024-10-14 16:45:40,119 INFO L231 Difference]: Finished difference. Result has 197 places, 185 transitions, 506 flow [2024-10-14 16:45:40,120 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=506, PETRI_PLACES=197, PETRI_TRANSITIONS=185} [2024-10-14 16:45:40,121 INFO L277 CegarLoopForPetriNet]: 181 programPoint places, 16 predicate places. [2024-10-14 16:45:40,121 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 185 transitions, 506 flow [2024-10-14 16:45:40,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 161.13333333333333) internal successors, (2417), 15 states have internal predecessors, (2417), 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) [2024-10-14 16:45:40,122 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:40,122 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-10-14 16:45:40,139 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 16:45:40,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:45:40,323 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-14 16:45:40,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:40,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1918243142, now seen corresponding path program 3 times [2024-10-14 16:45:40,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:40,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154183333] [2024-10-14 16:45:40,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:40,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:45:40,347 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 16:45:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:45:40,374 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 16:45:40,374 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 16:45:40,374 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-10-14 16:45:40,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-10-14 16:45:40,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2024-10-14 16:45:40,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-10-14 16:45:40,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-10-14 16:45:40,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-10-14 16:45:40,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2024-10-14 16:45:40,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2024-10-14 16:45:40,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-10-14 16:45:40,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-10-14 16:45:40,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2024-10-14 16:45:40,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-10-14 16:45:40,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-10-14 16:45:40,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-10-14 16:45:40,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-10-14 16:45:40,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-10-14 16:45:40,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-10-14 16:45:40,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-10-14 16:45:40,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-10-14 16:45:40,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-10-14 16:45:40,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-10-14 16:45:40,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-10-14 16:45:40,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-10-14 16:45:40,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-10-14 16:45:40,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-10-14 16:45:40,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-10-14 16:45:40,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 16:45:40,379 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2024-10-14 16:45:40,379 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-14 16:45:40,379 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-14 16:45:40,407 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 16:45:40,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 248 places, 268 transitions, 554 flow [2024-10-14 16:45:40,438 INFO L124 PetriNetUnfolderBase]: 30/299 cut-off events. [2024-10-14 16:45:40,438 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-14 16:45:40,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 299 events. 30/299 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 957 event pairs, 0 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 227. Up to 8 conditions per place. [2024-10-14 16:45:40,441 INFO L82 GeneralOperation]: Start removeDead. Operand has 248 places, 268 transitions, 554 flow [2024-10-14 16:45:40,444 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 248 places, 268 transitions, 554 flow [2024-10-14 16:45:40,445 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 16:45:40,446 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;@7b4dc2ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 16:45:40,446 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-10-14 16:45:40,448 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 16:45:40,448 INFO L124 PetriNetUnfolderBase]: 2/44 cut-off events. [2024-10-14 16:45:40,448 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 16:45:40,448 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:40,448 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] [2024-10-14 16:45:40,449 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-14 16:45:40,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:40,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1031286710, now seen corresponding path program 1 times [2024-10-14 16:45:40,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:40,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964950719] [2024-10-14 16:45:40,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:40,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:40,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:40,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:45:40,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:45:40,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964950719] [2024-10-14 16:45:40,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964950719] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:45:40,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:45:40,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:45:40,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262791361] [2024-10-14 16:45:40,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:45:40,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:45:40,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:45:40,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:45:40,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:45:40,759 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 268 [2024-10-14 16:45:40,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 268 transitions, 554 flow. Second operand has 6 states, 6 states have (on average 205.5) internal successors, (1233), 6 states have internal predecessors, (1233), 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) [2024-10-14 16:45:40,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:45:40,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 268 [2024-10-14 16:45:40,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:45:41,386 INFO L124 PetriNetUnfolderBase]: 1081/4096 cut-off events. [2024-10-14 16:45:41,386 INFO L125 PetriNetUnfolderBase]: For 364/364 co-relation queries the response was YES. [2024-10-14 16:45:41,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5642 conditions, 4096 events. 1081/4096 cut-off events. For 364/364 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 38718 event pairs, 630 based on Foata normal form. 1137/4449 useless extension candidates. Maximal degree in co-relation 1469. Up to 1318 conditions per place. [2024-10-14 16:45:41,418 INFO L140 encePairwiseOnDemand]: 235/268 looper letters, 27 selfloop transitions, 5 changer transitions 0/231 dead transitions. [2024-10-14 16:45:41,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 231 transitions, 544 flow [2024-10-14 16:45:41,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 16:45:41,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 16:45:41,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1284 transitions. [2024-10-14 16:45:41,421 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7985074626865671 [2024-10-14 16:45:41,421 INFO L175 Difference]: Start difference. First operand has 248 places, 268 transitions, 554 flow. Second operand 6 states and 1284 transitions. [2024-10-14 16:45:41,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 231 transitions, 544 flow [2024-10-14 16:45:41,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 231 transitions, 542 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-10-14 16:45:41,425 INFO L231 Difference]: Finished difference. Result has 230 places, 231 transitions, 488 flow [2024-10-14 16:45:41,425 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=488, PETRI_PLACES=230, PETRI_TRANSITIONS=231} [2024-10-14 16:45:41,426 INFO L277 CegarLoopForPetriNet]: 248 programPoint places, -18 predicate places. [2024-10-14 16:45:41,426 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 231 transitions, 488 flow [2024-10-14 16:45:41,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 205.5) internal successors, (1233), 6 states have internal predecessors, (1233), 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) [2024-10-14 16:45:41,427 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:41,427 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] [2024-10-14 16:45:41,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 16:45:41,427 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-14 16:45:41,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:41,427 INFO L85 PathProgramCache]: Analyzing trace with hash 822730212, now seen corresponding path program 1 times [2024-10-14 16:45:41,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:41,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545721564] [2024-10-14 16:45:41,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:41,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:41,445 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-14 16:45:41,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:45:41,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545721564] [2024-10-14 16:45:41,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545721564] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:45:41,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:45:41,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 16:45:41,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878165198] [2024-10-14 16:45:41,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:45:41,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:45:41,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:45:41,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:45:41,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:45:41,465 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 268 [2024-10-14 16:45:41,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 231 transitions, 488 flow. Second operand has 3 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 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) [2024-10-14 16:45:41,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:45:41,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 268 [2024-10-14 16:45:41,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:45:41,568 INFO L124 PetriNetUnfolderBase]: 95/999 cut-off events. [2024-10-14 16:45:41,568 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2024-10-14 16:45:41,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1140 conditions, 999 events. 95/999 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6091 event pairs, 42 based on Foata normal form. 1/865 useless extension candidates. Maximal degree in co-relation 1082. Up to 87 conditions per place. [2024-10-14 16:45:41,579 INFO L140 encePairwiseOnDemand]: 265/268 looper letters, 13 selfloop transitions, 2 changer transitions 0/232 dead transitions. [2024-10-14 16:45:41,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 232 transitions, 522 flow [2024-10-14 16:45:41,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:45:41,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:45:41,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 685 transitions. [2024-10-14 16:45:41,581 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8519900497512438 [2024-10-14 16:45:41,581 INFO L175 Difference]: Start difference. First operand has 230 places, 231 transitions, 488 flow. Second operand 3 states and 685 transitions. [2024-10-14 16:45:41,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 232 transitions, 522 flow [2024-10-14 16:45:41,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 232 transitions, 510 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 16:45:41,584 INFO L231 Difference]: Finished difference. Result has 228 places, 232 transitions, 490 flow [2024-10-14 16:45:41,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=490, PETRI_PLACES=228, PETRI_TRANSITIONS=232} [2024-10-14 16:45:41,585 INFO L277 CegarLoopForPetriNet]: 248 programPoint places, -20 predicate places. [2024-10-14 16:45:41,586 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 232 transitions, 490 flow [2024-10-14 16:45:41,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 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) [2024-10-14 16:45:41,586 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:41,586 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:45:41,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 16:45:41,586 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-14 16:45:41,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:41,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1896244475, now seen corresponding path program 1 times [2024-10-14 16:45:41,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:41,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972299555] [2024-10-14 16:45:41,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:41,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:41,627 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-14 16:45:41,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:45:41,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972299555] [2024-10-14 16:45:41,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972299555] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 16:45:41,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514113202] [2024-10-14 16:45:41,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:41,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:45:41,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 16:45:41,629 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 16:45:41,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 16:45:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:41,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 16:45:41,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 16:45:41,738 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-14 16:45:41,739 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 16:45:41,774 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-14 16:45:41,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514113202] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 16:45:41,774 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 16:45:41,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-14 16:45:41,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600736974] [2024-10-14 16:45:41,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 16:45:41,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 16:45:41,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:45:41,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 16:45:41,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-14 16:45:41,840 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 268 [2024-10-14 16:45:41,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 232 transitions, 490 flow. Second operand has 10 states, 10 states have (on average 222.1) internal successors, (2221), 10 states have internal predecessors, (2221), 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) [2024-10-14 16:45:41,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:45:41,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 268 [2024-10-14 16:45:41,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:45:42,031 INFO L124 PetriNetUnfolderBase]: 95/1014 cut-off events. [2024-10-14 16:45:42,032 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2024-10-14 16:45:42,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1163 conditions, 1014 events. 95/1014 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6100 event pairs, 42 based on Foata normal form. 2/881 useless extension candidates. Maximal degree in co-relation 1117. Up to 87 conditions per place. [2024-10-14 16:45:42,046 INFO L140 encePairwiseOnDemand]: 262/268 looper letters, 17 selfloop transitions, 9 changer transitions 0/240 dead transitions. [2024-10-14 16:45:42,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 240 transitions, 560 flow [2024-10-14 16:45:42,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 16:45:42,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 16:45:42,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2008 transitions. [2024-10-14 16:45:42,050 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8325041459369817 [2024-10-14 16:45:42,050 INFO L175 Difference]: Start difference. First operand has 228 places, 232 transitions, 490 flow. Second operand 9 states and 2008 transitions. [2024-10-14 16:45:42,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 240 transitions, 560 flow [2024-10-14 16:45:42,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 240 transitions, 558 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 16:45:42,054 INFO L231 Difference]: Finished difference. Result has 238 places, 238 transitions, 538 flow [2024-10-14 16:45:42,055 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=538, PETRI_PLACES=238, PETRI_TRANSITIONS=238} [2024-10-14 16:45:42,056 INFO L277 CegarLoopForPetriNet]: 248 programPoint places, -10 predicate places. [2024-10-14 16:45:42,056 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 238 transitions, 538 flow [2024-10-14 16:45:42,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 222.1) internal successors, (2221), 10 states have internal predecessors, (2221), 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) [2024-10-14 16:45:42,057 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:42,057 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:45:42,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 16:45:42,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-14 16:45:42,262 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-14 16:45:42,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:42,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1725735269, now seen corresponding path program 2 times [2024-10-14 16:45:42,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:42,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785695818] [2024-10-14 16:45:42,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:42,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:42,366 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-14 16:45:42,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:45:42,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785695818] [2024-10-14 16:45:42,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785695818] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 16:45:42,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400916915] [2024-10-14 16:45:42,367 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 16:45:42,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:45:42,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 16:45:42,369 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 16:45:42,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 16:45:42,459 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 16:45:42,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 16:45:42,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 16:45:42,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 16:45:42,533 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-14 16:45:42,533 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 16:45:42,613 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-14 16:45:42,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400916915] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 16:45:42,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 16:45:42,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-10-14 16:45:42,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225481497] [2024-10-14 16:45:42,614 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 16:45:42,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 16:45:42,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:45:42,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 16:45:42,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-10-14 16:45:42,693 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 268 [2024-10-14 16:45:42,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 238 transitions, 538 flow. Second operand has 15 states, 15 states have (on average 222.2) internal successors, (3333), 15 states have internal predecessors, (3333), 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) [2024-10-14 16:45:42,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:45:42,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 268 [2024-10-14 16:45:42,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:45:42,920 INFO L124 PetriNetUnfolderBase]: 95/1053 cut-off events. [2024-10-14 16:45:42,921 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2024-10-14 16:45:42,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1256 conditions, 1053 events. 95/1053 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6124 event pairs, 42 based on Foata normal form. 3/921 useless extension candidates. Maximal degree in co-relation 1079. Up to 87 conditions per place. [2024-10-14 16:45:42,931 INFO L140 encePairwiseOnDemand]: 262/268 looper letters, 20 selfloop transitions, 18 changer transitions 0/252 dead transitions. [2024-10-14 16:45:42,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 252 transitions, 688 flow [2024-10-14 16:45:42,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-14 16:45:42,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-10-14 16:45:42,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4001 transitions. [2024-10-14 16:45:42,937 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8293946932006634 [2024-10-14 16:45:42,937 INFO L175 Difference]: Start difference. First operand has 238 places, 238 transitions, 538 flow. Second operand 18 states and 4001 transitions. [2024-10-14 16:45:42,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 252 transitions, 688 flow [2024-10-14 16:45:42,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 252 transitions, 676 flow, removed 5 selfloop flow, removed 1 redundant places. [2024-10-14 16:45:42,941 INFO L231 Difference]: Finished difference. Result has 258 places, 248 transitions, 638 flow [2024-10-14 16:45:42,942 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=638, PETRI_PLACES=258, PETRI_TRANSITIONS=248} [2024-10-14 16:45:42,942 INFO L277 CegarLoopForPetriNet]: 248 programPoint places, 10 predicate places. [2024-10-14 16:45:42,942 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 248 transitions, 638 flow [2024-10-14 16:45:42,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 222.2) internal successors, (3333), 15 states have internal predecessors, (3333), 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) [2024-10-14 16:45:42,944 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:42,944 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-10-14 16:45:42,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 16:45:43,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:45:43,149 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-14 16:45:43,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:43,149 INFO L85 PathProgramCache]: Analyzing trace with hash -581247292, now seen corresponding path program 3 times [2024-10-14 16:45:43,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:43,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063517127] [2024-10-14 16:45:43,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:43,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:45:43,184 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 16:45:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:45:43,222 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 16:45:43,223 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 16:45:43,224 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 34 remaining) [2024-10-14 16:45:43,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (32 of 34 remaining) [2024-10-14 16:45:43,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (31 of 34 remaining) [2024-10-14 16:45:43,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (30 of 34 remaining) [2024-10-14 16:45:43,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (29 of 34 remaining) [2024-10-14 16:45:43,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (28 of 34 remaining) [2024-10-14 16:45:43,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 34 remaining) [2024-10-14 16:45:43,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (26 of 34 remaining) [2024-10-14 16:45:43,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 34 remaining) [2024-10-14 16:45:43,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 34 remaining) [2024-10-14 16:45:43,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 34 remaining) [2024-10-14 16:45:43,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (22 of 34 remaining) [2024-10-14 16:45:43,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 34 remaining) [2024-10-14 16:45:43,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 34 remaining) [2024-10-14 16:45:43,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 34 remaining) [2024-10-14 16:45:43,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 34 remaining) [2024-10-14 16:45:43,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 34 remaining) [2024-10-14 16:45:43,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (16 of 34 remaining) [2024-10-14 16:45:43,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 34 remaining) [2024-10-14 16:45:43,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (14 of 34 remaining) [2024-10-14 16:45:43,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (13 of 34 remaining) [2024-10-14 16:45:43,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 34 remaining) [2024-10-14 16:45:43,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 34 remaining) [2024-10-14 16:45:43,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (10 of 34 remaining) [2024-10-14 16:45:43,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 34 remaining) [2024-10-14 16:45:43,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 34 remaining) [2024-10-14 16:45:43,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 34 remaining) [2024-10-14 16:45:43,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 34 remaining) [2024-10-14 16:45:43,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 34 remaining) [2024-10-14 16:45:43,227 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 34 remaining) [2024-10-14 16:45:43,227 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 34 remaining) [2024-10-14 16:45:43,227 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 34 remaining) [2024-10-14 16:45:43,227 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (1 of 34 remaining) [2024-10-14 16:45:43,227 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 34 remaining) [2024-10-14 16:45:43,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 16:45:43,227 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2024-10-14 16:45:43,228 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-14 16:45:43,228 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-10-14 16:45:43,283 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 16:45:43,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 315 places, 341 transitions, 710 flow [2024-10-14 16:45:43,346 INFO L124 PetriNetUnfolderBase]: 39/383 cut-off events. [2024-10-14 16:45:43,346 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-14 16:45:43,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 383 events. 39/383 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1410 event pairs, 0 based on Foata normal form. 0/306 useless extension candidates. Maximal degree in co-relation 307. Up to 10 conditions per place. [2024-10-14 16:45:43,351 INFO L82 GeneralOperation]: Start removeDead. Operand has 315 places, 341 transitions, 710 flow [2024-10-14 16:45:43,360 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 315 places, 341 transitions, 710 flow [2024-10-14 16:45:43,361 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 16:45:43,362 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;@7b4dc2ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 16:45:43,363 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-10-14 16:45:43,366 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 16:45:43,366 INFO L124 PetriNetUnfolderBase]: 2/44 cut-off events. [2024-10-14 16:45:43,366 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 16:45:43,366 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:43,367 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] [2024-10-14 16:45:43,367 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-10-14 16:45:43,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:43,367 INFO L85 PathProgramCache]: Analyzing trace with hash 385830111, now seen corresponding path program 1 times [2024-10-14 16:45:43,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:43,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272502914] [2024-10-14 16:45:43,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:43,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:43,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:45:43,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:45:43,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272502914] [2024-10-14 16:45:43,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272502914] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:45:43,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:45:43,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:45:43,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067039072] [2024-10-14 16:45:43,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:45:43,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:45:43,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:45:43,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:45:43,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:45:43,713 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 341 [2024-10-14 16:45:43,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 341 transitions, 710 flow. Second operand has 6 states, 6 states have (on average 262.5) internal successors, (1575), 6 states have internal predecessors, (1575), 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) [2024-10-14 16:45:43,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:45:43,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 341 [2024-10-14 16:45:43,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:45:47,799 INFO L124 PetriNetUnfolderBase]: 10778/30370 cut-off events. [2024-10-14 16:45:47,799 INFO L125 PetriNetUnfolderBase]: For 4130/4130 co-relation queries the response was YES. [2024-10-14 16:45:48,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44823 conditions, 30370 events. 10778/30370 cut-off events. For 4130/4130 co-relation queries the response was YES. Maximal size of possible extension queue 1444. Compared 370091 event pairs, 6804 based on Foata normal form. 9865/34011 useless extension candidates. Maximal degree in co-relation 6941. Up to 12509 conditions per place. [2024-10-14 16:45:48,260 INFO L140 encePairwiseOnDemand]: 300/341 looper letters, 34 selfloop transitions, 5 changer transitions 0/294 dead transitions. [2024-10-14 16:45:48,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 294 transitions, 694 flow [2024-10-14 16:45:48,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 16:45:48,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 16:45:48,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1641 transitions. [2024-10-14 16:45:48,264 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8020527859237536 [2024-10-14 16:45:48,264 INFO L175 Difference]: Start difference. First operand has 315 places, 341 transitions, 710 flow. Second operand 6 states and 1641 transitions. [2024-10-14 16:45:48,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 294 transitions, 694 flow [2024-10-14 16:45:48,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 294 transitions, 688 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-10-14 16:45:48,269 INFO L231 Difference]: Finished difference. Result has 291 places, 294 transitions, 620 flow [2024-10-14 16:45:48,269 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=620, PETRI_PLACES=291, PETRI_TRANSITIONS=294} [2024-10-14 16:45:48,271 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -24 predicate places. [2024-10-14 16:45:48,271 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 294 transitions, 620 flow [2024-10-14 16:45:48,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 262.5) internal successors, (1575), 6 states have internal predecessors, (1575), 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) [2024-10-14 16:45:48,271 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:48,273 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] [2024-10-14 16:45:48,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 16:45:48,273 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-10-14 16:45:48,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:48,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1321872662, now seen corresponding path program 1 times [2024-10-14 16:45:48,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:48,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991075951] [2024-10-14 16:45:48,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:48,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:48,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:45:48,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:45:48,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991075951] [2024-10-14 16:45:48,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991075951] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:45:48,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:45:48,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 16:45:48,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615808080] [2024-10-14 16:45:48,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:45:48,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:45:48,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:45:48,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:45:48,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:45:48,341 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 341 [2024-10-14 16:45:48,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 294 transitions, 620 flow. Second operand has 3 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 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) [2024-10-14 16:45:48,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:45:48,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 341 [2024-10-14 16:45:48,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:45:48,714 INFO L124 PetriNetUnfolderBase]: 365/3042 cut-off events. [2024-10-14 16:45:48,714 INFO L125 PetriNetUnfolderBase]: For 282/282 co-relation queries the response was YES. [2024-10-14 16:45:48,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3508 conditions, 3042 events. 365/3042 cut-off events. For 282/282 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 26751 event pairs, 204 based on Foata normal form. 1/2626 useless extension candidates. Maximal degree in co-relation 3449. Up to 330 conditions per place. [2024-10-14 16:45:48,761 INFO L140 encePairwiseOnDemand]: 338/341 looper letters, 16 selfloop transitions, 2 changer transitions 0/295 dead transitions. [2024-10-14 16:45:48,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 295 transitions, 660 flow [2024-10-14 16:45:48,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:45:48,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:45:48,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 871 transitions. [2024-10-14 16:45:48,764 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8514173998044966 [2024-10-14 16:45:48,764 INFO L175 Difference]: Start difference. First operand has 291 places, 294 transitions, 620 flow. Second operand 3 states and 871 transitions. [2024-10-14 16:45:48,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 295 transitions, 660 flow [2024-10-14 16:45:48,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 295 transitions, 648 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 16:45:48,769 INFO L231 Difference]: Finished difference. Result has 289 places, 295 transitions, 622 flow [2024-10-14 16:45:48,770 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=622, PETRI_PLACES=289, PETRI_TRANSITIONS=295} [2024-10-14 16:45:48,770 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -26 predicate places. [2024-10-14 16:45:48,770 INFO L471 AbstractCegarLoop]: Abstraction has has 289 places, 295 transitions, 622 flow [2024-10-14 16:45:48,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 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) [2024-10-14 16:45:48,771 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:48,771 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:45:48,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 16:45:48,771 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-10-14 16:45:48,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:48,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1939683572, now seen corresponding path program 1 times [2024-10-14 16:45:48,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:48,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119737163] [2024-10-14 16:45:48,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:48,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:48,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:45:48,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:45:48,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119737163] [2024-10-14 16:45:48,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119737163] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 16:45:48,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112773045] [2024-10-14 16:45:48,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:48,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:45:48,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 16:45:48,817 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 16:45:48,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 16:45:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:48,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 16:45:48,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 16:45:48,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 16:45:48,911 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 16:45:48,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112773045] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:45:48,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 16:45:48,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-10-14 16:45:48,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74053849] [2024-10-14 16:45:48,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:45:48,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:45:48,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:45:48,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:45:48,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:45:48,930 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 341 [2024-10-14 16:45:48,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 295 transitions, 622 flow. Second operand has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 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) [2024-10-14 16:45:48,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:45:48,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 341 [2024-10-14 16:45:48,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:45:49,778 INFO L124 PetriNetUnfolderBase]: 1136/6601 cut-off events. [2024-10-14 16:45:49,778 INFO L125 PetriNetUnfolderBase]: For 644/644 co-relation queries the response was YES. [2024-10-14 16:45:49,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8217 conditions, 6601 events. 1136/6601 cut-off events. For 644/644 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 69292 event pairs, 690 based on Foata normal form. 40/5655 useless extension candidates. Maximal degree in co-relation 8175. Up to 1091 conditions per place. [2024-10-14 16:45:49,896 INFO L140 encePairwiseOnDemand]: 338/341 looper letters, 27 selfloop transitions, 2 changer transitions 0/305 dead transitions. [2024-10-14 16:45:49,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 305 transitions, 715 flow [2024-10-14 16:45:49,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:45:49,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:45:49,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 879 transitions. [2024-10-14 16:45:49,898 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8592375366568915 [2024-10-14 16:45:49,899 INFO L175 Difference]: Start difference. First operand has 289 places, 295 transitions, 622 flow. Second operand 3 states and 879 transitions. [2024-10-14 16:45:49,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 305 transitions, 715 flow [2024-10-14 16:45:49,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 305 transitions, 713 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 16:45:49,905 INFO L231 Difference]: Finished difference. Result has 291 places, 296 transitions, 632 flow [2024-10-14 16:45:49,905 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=632, PETRI_PLACES=291, PETRI_TRANSITIONS=296} [2024-10-14 16:45:49,906 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -24 predicate places. [2024-10-14 16:45:49,906 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 296 transitions, 632 flow [2024-10-14 16:45:49,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 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) [2024-10-14 16:45:49,906 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:49,907 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:45:49,920 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 16:45:50,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:45:50,111 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-10-14 16:45:50,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:50,111 INFO L85 PathProgramCache]: Analyzing trace with hash -349706755, now seen corresponding path program 1 times [2024-10-14 16:45:50,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:50,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281368660] [2024-10-14 16:45:50,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:50,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:50,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:50,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:45:50,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:45:50,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281368660] [2024-10-14 16:45:50,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281368660] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 16:45:50,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140963921] [2024-10-14 16:45:50,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:50,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:45:50,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 16:45:50,179 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 16:45:50,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 16:45:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:50,276 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 16:45:50,277 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 16:45:50,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:45:50,302 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 16:45:50,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:45:50,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140963921] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 16:45:50,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 16:45:50,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-14 16:45:50,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367427281] [2024-10-14 16:45:50,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 16:45:50,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 16:45:50,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:45:50,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 16:45:50,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-14 16:45:50,404 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 341 [2024-10-14 16:45:50,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 296 transitions, 632 flow. Second operand has 10 states, 10 states have (on average 282.9) internal successors, (2829), 10 states have internal predecessors, (2829), 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) [2024-10-14 16:45:50,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:45:50,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 341 [2024-10-14 16:45:50,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:45:51,004 INFO L124 PetriNetUnfolderBase]: 366/3076 cut-off events. [2024-10-14 16:45:51,004 INFO L125 PetriNetUnfolderBase]: For 281/281 co-relation queries the response was YES. [2024-10-14 16:45:51,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3555 conditions, 3076 events. 366/3076 cut-off events. For 281/281 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 26521 event pairs, 204 based on Foata normal form. 2/2656 useless extension candidates. Maximal degree in co-relation 3465. Up to 330 conditions per place. [2024-10-14 16:45:51,055 INFO L140 encePairwiseOnDemand]: 335/341 looper letters, 20 selfloop transitions, 9 changer transitions 0/304 dead transitions. [2024-10-14 16:45:51,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 304 transitions, 708 flow [2024-10-14 16:45:51,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 16:45:51,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 16:45:51,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2560 transitions. [2024-10-14 16:45:51,059 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8341479309221245 [2024-10-14 16:45:51,059 INFO L175 Difference]: Start difference. First operand has 291 places, 296 transitions, 632 flow. Second operand 9 states and 2560 transitions. [2024-10-14 16:45:51,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 304 transitions, 708 flow [2024-10-14 16:45:51,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 304 transitions, 706 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 16:45:51,065 INFO L231 Difference]: Finished difference. Result has 301 places, 302 transitions, 680 flow [2024-10-14 16:45:51,066 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=680, PETRI_PLACES=301, PETRI_TRANSITIONS=302} [2024-10-14 16:45:51,066 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -14 predicate places. [2024-10-14 16:45:51,066 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 302 transitions, 680 flow [2024-10-14 16:45:51,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 282.9) internal successors, (2829), 10 states have internal predecessors, (2829), 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) [2024-10-14 16:45:51,067 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:51,067 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:45:51,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-14 16:45:51,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:45:51,271 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-10-14 16:45:51,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:51,272 INFO L85 PathProgramCache]: Analyzing trace with hash 851379773, now seen corresponding path program 2 times [2024-10-14 16:45:51,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:51,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099221955] [2024-10-14 16:45:51,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:51,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:51,406 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:45:51,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:45:51,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099221955] [2024-10-14 16:45:51,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099221955] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 16:45:51,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013104189] [2024-10-14 16:45:51,407 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 16:45:51,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:45:51,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 16:45:51,409 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 16:45:51,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 16:45:51,503 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 16:45:51,503 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 16:45:51,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-14 16:45:51,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 16:45:51,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-14 16:45:51,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-14 16:45:51,586 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 16:45:51,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-14 16:45:51,617 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 16:45:51,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-14 16:45:51,644 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-10-14 16:45:51,644 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 16:45:51,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013104189] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:45:51,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 16:45:51,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-10-14 16:45:51,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738819983] [2024-10-14 16:45:51,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:45:51,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:45:51,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:45:51,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:45:51,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-14 16:45:51,884 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 341 [2024-10-14 16:45:51,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 302 transitions, 680 flow. Second operand has 6 states, 6 states have (on average 276.3333333333333) internal successors, (1658), 6 states have internal predecessors, (1658), 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) [2024-10-14 16:45:51,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:45:51,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 341 [2024-10-14 16:45:51,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:45:53,761 INFO L124 PetriNetUnfolderBase]: 1957/10030 cut-off events. [2024-10-14 16:45:53,761 INFO L125 PetriNetUnfolderBase]: For 1260/1260 co-relation queries the response was YES. [2024-10-14 16:45:53,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13083 conditions, 10030 events. 1957/10030 cut-off events. For 1260/1260 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 112034 event pairs, 609 based on Foata normal form. 0/8712 useless extension candidates. Maximal degree in co-relation 12978. Up to 983 conditions per place. [2024-10-14 16:45:53,971 INFO L140 encePairwiseOnDemand]: 335/341 looper letters, 58 selfloop transitions, 6 changer transitions 0/337 dead transitions. [2024-10-14 16:45:53,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 337 transitions, 938 flow [2024-10-14 16:45:53,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 16:45:53,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 16:45:53,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1708 transitions. [2024-10-14 16:45:53,974 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8347996089931574 [2024-10-14 16:45:53,974 INFO L175 Difference]: Start difference. First operand has 301 places, 302 transitions, 680 flow. Second operand 6 states and 1708 transitions. [2024-10-14 16:45:53,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 337 transitions, 938 flow [2024-10-14 16:45:53,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 337 transitions, 932 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-14 16:45:53,982 INFO L231 Difference]: Finished difference. Result has 304 places, 301 transitions, 684 flow [2024-10-14 16:45:53,982 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=672, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=684, PETRI_PLACES=304, PETRI_TRANSITIONS=301} [2024-10-14 16:45:53,982 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -11 predicate places. [2024-10-14 16:45:53,983 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 301 transitions, 684 flow [2024-10-14 16:45:53,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 276.3333333333333) internal successors, (1658), 6 states have internal predecessors, (1658), 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) [2024-10-14 16:45:53,983 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:53,984 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:45:54,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-14 16:45:54,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:45:54,186 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-10-14 16:45:54,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:54,186 INFO L85 PathProgramCache]: Analyzing trace with hash -591755104, now seen corresponding path program 1 times [2024-10-14 16:45:54,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:54,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368772493] [2024-10-14 16:45:54,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:54,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:54,302 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-14 16:45:54,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:45:54,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368772493] [2024-10-14 16:45:54,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368772493] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 16:45:54,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66858337] [2024-10-14 16:45:54,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:54,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:45:54,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 16:45:54,304 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 16:45:54,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-14 16:45:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:54,415 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 16:45:54,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 16:45:54,473 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-14 16:45:54,473 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 16:45:54,562 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-14 16:45:54,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66858337] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 16:45:54,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 16:45:54,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-10-14 16:45:54,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382485413] [2024-10-14 16:45:54,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 16:45:54,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 16:45:54,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:45:54,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 16:45:54,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-10-14 16:45:54,639 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 341 [2024-10-14 16:45:54,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 301 transitions, 684 flow. Second operand has 15 states, 15 states have (on average 283.26666666666665) internal successors, (4249), 15 states have internal predecessors, (4249), 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) [2024-10-14 16:45:54,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:45:54,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 341 [2024-10-14 16:45:54,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:45:55,362 INFO L124 PetriNetUnfolderBase]: 365/3115 cut-off events. [2024-10-14 16:45:55,362 INFO L125 PetriNetUnfolderBase]: For 301/301 co-relation queries the response was YES. [2024-10-14 16:45:55,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3653 conditions, 3115 events. 365/3115 cut-off events. For 301/301 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 26504 event pairs, 204 based on Foata normal form. 3/2698 useless extension candidates. Maximal degree in co-relation 3479. Up to 330 conditions per place. [2024-10-14 16:45:55,413 INFO L140 encePairwiseOnDemand]: 335/341 looper letters, 23 selfloop transitions, 18 changer transitions 0/315 dead transitions. [2024-10-14 16:45:55,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 315 transitions, 834 flow [2024-10-14 16:45:55,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-14 16:45:55,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-10-14 16:45:55,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 5102 transitions. [2024-10-14 16:45:55,418 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8312153796024764 [2024-10-14 16:45:55,418 INFO L175 Difference]: Start difference. First operand has 304 places, 301 transitions, 684 flow. Second operand 18 states and 5102 transitions. [2024-10-14 16:45:55,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 315 transitions, 834 flow [2024-10-14 16:45:55,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 315 transitions, 822 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 16:45:55,425 INFO L231 Difference]: Finished difference. Result has 320 places, 311 transitions, 778 flow [2024-10-14 16:45:55,425 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=672, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=778, PETRI_PLACES=320, PETRI_TRANSITIONS=311} [2024-10-14 16:45:55,425 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, 5 predicate places. [2024-10-14 16:45:55,425 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 311 transitions, 778 flow [2024-10-14 16:45:55,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 283.26666666666665) internal successors, (4249), 15 states have internal predecessors, (4249), 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) [2024-10-14 16:45:55,427 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:55,427 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-10-14 16:45:55,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-14 16:45:55,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-10-14 16:45:55,632 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-10-14 16:45:55,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:55,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1881720042, now seen corresponding path program 2 times [2024-10-14 16:45:55,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:55,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819208610] [2024-10-14 16:45:55,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:55,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:45:55,665 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 16:45:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:45:55,695 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 16:45:55,695 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 16:45:55,695 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 42 remaining) [2024-10-14 16:45:55,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (40 of 42 remaining) [2024-10-14 16:45:55,696 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (39 of 42 remaining) [2024-10-14 16:45:55,696 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (38 of 42 remaining) [2024-10-14 16:45:55,696 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (37 of 42 remaining) [2024-10-14 16:45:55,696 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (36 of 42 remaining) [2024-10-14 16:45:55,696 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (35 of 42 remaining) [2024-10-14 16:45:55,696 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (34 of 42 remaining) [2024-10-14 16:45:55,696 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (33 of 42 remaining) [2024-10-14 16:45:55,696 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (32 of 42 remaining) [2024-10-14 16:45:55,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (31 of 42 remaining) [2024-10-14 16:45:55,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (30 of 42 remaining) [2024-10-14 16:45:55,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (29 of 42 remaining) [2024-10-14 16:45:55,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 42 remaining) [2024-10-14 16:45:55,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 42 remaining) [2024-10-14 16:45:55,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (26 of 42 remaining) [2024-10-14 16:45:55,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 42 remaining) [2024-10-14 16:45:55,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (24 of 42 remaining) [2024-10-14 16:45:55,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 42 remaining) [2024-10-14 16:45:55,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (22 of 42 remaining) [2024-10-14 16:45:55,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 42 remaining) [2024-10-14 16:45:55,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 42 remaining) [2024-10-14 16:45:55,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 42 remaining) [2024-10-14 16:45:55,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 42 remaining) [2024-10-14 16:45:55,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 42 remaining) [2024-10-14 16:45:55,698 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (16 of 42 remaining) [2024-10-14 16:45:55,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 42 remaining) [2024-10-14 16:45:55,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (14 of 42 remaining) [2024-10-14 16:45:55,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (13 of 42 remaining) [2024-10-14 16:45:55,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 42 remaining) [2024-10-14 16:45:55,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 42 remaining) [2024-10-14 16:45:55,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (10 of 42 remaining) [2024-10-14 16:45:55,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 42 remaining) [2024-10-14 16:45:55,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 42 remaining) [2024-10-14 16:45:55,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 42 remaining) [2024-10-14 16:45:55,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 42 remaining) [2024-10-14 16:45:55,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 42 remaining) [2024-10-14 16:45:55,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 42 remaining) [2024-10-14 16:45:55,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 42 remaining) [2024-10-14 16:45:55,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 42 remaining) [2024-10-14 16:45:55,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (1 of 42 remaining) [2024-10-14 16:45:55,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 42 remaining) [2024-10-14 16:45:55,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 16:45:55,701 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2024-10-14 16:45:55,702 WARN L239 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-14 16:45:55,702 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-10-14 16:45:55,751 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 16:45:55,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 382 places, 414 transitions, 868 flow [2024-10-14 16:45:55,828 INFO L124 PetriNetUnfolderBase]: 48/467 cut-off events. [2024-10-14 16:45:55,828 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-10-14 16:45:55,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 493 conditions, 467 events. 48/467 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1852 event pairs, 0 based on Foata normal form. 0/372 useless extension candidates. Maximal degree in co-relation 396. Up to 12 conditions per place. [2024-10-14 16:45:55,835 INFO L82 GeneralOperation]: Start removeDead. Operand has 382 places, 414 transitions, 868 flow [2024-10-14 16:45:55,841 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 382 places, 414 transitions, 868 flow [2024-10-14 16:45:55,842 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 16:45:55,842 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;@7b4dc2ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 16:45:55,843 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-10-14 16:45:55,846 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 16:45:55,846 INFO L124 PetriNetUnfolderBase]: 2/44 cut-off events. [2024-10-14 16:45:55,846 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 16:45:55,847 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:45:55,847 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] [2024-10-14 16:45:55,847 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2024-10-14 16:45:55,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:45:55,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1400986109, now seen corresponding path program 1 times [2024-10-14 16:45:55,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:45:55,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513031376] [2024-10-14 16:45:55,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:45:55,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:45:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:45:55,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:45:55,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:45:55,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513031376] [2024-10-14 16:45:55,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513031376] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:45:55,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:45:55,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:45:55,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180206993] [2024-10-14 16:45:55,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:45:55,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:45:55,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:45:55,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:45:55,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:45:56,180 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 414 [2024-10-14 16:45:56,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 414 transitions, 868 flow. Second operand has 6 states, 6 states have (on average 319.5) internal successors, (1917), 6 states have internal predecessors, (1917), 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) [2024-10-14 16:45:56,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:45:56,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 414 [2024-10-14 16:45:56,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand