./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/goblint-regression/06-symbeq_23-idxsense_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d 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/goblint-regression/06-symbeq_23-idxsense_nr.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 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:49:42,772 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:49:42,820 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:49:42,823 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:49:42,825 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:49:42,845 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:49:42,846 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:49:42,846 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:49:42,847 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:49:42,848 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:49:42,848 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:49:42,849 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:49:42,849 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:49:42,850 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:49:42,850 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:49:42,851 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:49:42,851 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:49:42,851 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:49:42,851 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:49:42,851 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:49:42,853 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:49:42,853 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:49:42,854 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:49:42,854 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:49:42,854 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:49:42,855 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:49:42,855 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:49:42,855 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:49:42,855 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:49:42,856 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:49:42,856 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:49:42,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:49:42,856 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:49:42,857 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:49:42,857 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:49:42,857 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:49:42,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:49:42,858 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:49:42,858 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:49:42,858 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:49:42,858 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:49:42,858 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 [2024-10-13 09:49:43,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:49:43,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:49:43,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:49:43,103 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:49:43,103 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:49:43,104 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2024-10-13 09:49:44,288 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:49:44,463 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:49:44,464 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2024-10-13 09:49:44,475 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f61490bd/d8fa893c4ba14f6bbd6e353fb7230244/FLAGe5e8a8ed5 [2024-10-13 09:49:44,839 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f61490bd/d8fa893c4ba14f6bbd6e353fb7230244 [2024-10-13 09:49:44,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:49:44,842 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:49:44,844 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:49:44,844 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:49:44,865 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:49:44,865 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:49:44" (1/1) ... [2024-10-13 09:49:44,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27398bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:44, skipping insertion in model container [2024-10-13 09:49:44,866 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:49:44" (1/1) ... [2024-10-13 09:49:44,926 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:49:45,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:49:45,181 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:49:45,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:49:45,264 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:49:45,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:45 WrapperNode [2024-10-13 09:49:45,265 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:49:45,266 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:49:45,266 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:49:45,266 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:49:45,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:45" (1/1) ... [2024-10-13 09:49:45,289 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:45" (1/1) ... [2024-10-13 09:49:45,311 INFO L138 Inliner]: procedures = 161, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 75 [2024-10-13 09:49:45,314 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:49:45,314 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:49:45,315 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:49:45,315 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:49:45,322 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:45" (1/1) ... [2024-10-13 09:49:45,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:45" (1/1) ... [2024-10-13 09:49:45,326 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:45" (1/1) ... [2024-10-13 09:49:45,330 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:45" (1/1) ... [2024-10-13 09:49:45,340 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:45" (1/1) ... [2024-10-13 09:49:45,347 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:45" (1/1) ... [2024-10-13 09:49:45,352 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:45" (1/1) ... [2024-10-13 09:49:45,353 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:45" (1/1) ... [2024-10-13 09:49:45,354 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:49:45,359 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:49:45,359 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:49:45,359 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:49:45,359 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:45" (1/1) ... [2024-10-13 09:49:45,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:49:45,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:49:45,391 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) [2024-10-13 09:49:45,394 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 [2024-10-13 09:49:45,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-13 09:49:45,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-13 09:49:45,430 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 09:49:45,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:49:45,430 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-13 09:49:45,430 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-13 09:49:45,430 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 09:49:45,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:49:45,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:49:45,432 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:49:45,533 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:49:45,534 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:49:45,710 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:49:45,710 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:49:45,730 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:49:45,731 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 09:49:45,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:49:45 BoogieIcfgContainer [2024-10-13 09:49:45,731 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:49:45,732 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:49:45,733 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:49:45,735 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:49:45,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:49:44" (1/3) ... [2024-10-13 09:49:45,735 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f5135c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:49:45, skipping insertion in model container [2024-10-13 09:49:45,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:45" (2/3) ... [2024-10-13 09:49:45,736 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f5135c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:49:45, skipping insertion in model container [2024-10-13 09:49:45,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:49:45" (3/3) ... [2024-10-13 09:49:45,738 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.i [2024-10-13 09:49:45,751 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:49:45,751 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-13 09:49:45,751 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:49:45,795 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:49:45,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 103 transitions, 210 flow [2024-10-13 09:49:45,873 INFO L124 PetriNetUnfolderBase]: 2/102 cut-off events. [2024-10-13 09:49:45,873 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:49:45,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 102 events. 2/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2024-10-13 09:49:45,877 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 103 transitions, 210 flow [2024-10-13 09:49:45,881 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 102 transitions, 207 flow [2024-10-13 09:49:45,890 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:49:45,897 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;@18c46073, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:49:45,897 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-10-13 09:49:45,908 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:49:45,910 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-10-13 09:49:45,911 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:49:45,911 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:45,912 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] [2024-10-13 09:49:45,912 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-13 09:49:45,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:45,917 INFO L85 PathProgramCache]: Analyzing trace with hash -374895960, now seen corresponding path program 1 times [2024-10-13 09:49:45,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:45,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364957761] [2024-10-13 09:49:45,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:45,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:46,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:46,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:46,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364957761] [2024-10-13 09:49:46,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364957761] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:46,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:49:46,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:49:46,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292633012] [2024-10-13 09:49:46,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:46,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:49:46,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:46,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:49:46,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:49:46,194 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 103 [2024-10-13 09:49:46,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 102 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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) [2024-10-13 09:49:46,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:46,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 103 [2024-10-13 09:49:46,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:46,293 INFO L124 PetriNetUnfolderBase]: 11/240 cut-off events. [2024-10-13 09:49:46,293 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:49:46,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 240 events. 11/240 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 591 event pairs, 10 based on Foata normal form. 1/222 useless extension candidates. Maximal degree in co-relation 240. Up to 34 conditions per place. [2024-10-13 09:49:46,298 INFO L140 encePairwiseOnDemand]: 99/103 looper letters, 12 selfloop transitions, 2 changer transitions 0/102 dead transitions. [2024-10-13 09:49:46,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 102 transitions, 235 flow [2024-10-13 09:49:46,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:49:46,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:49:46,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-10-13 09:49:46,312 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.919093851132686 [2024-10-13 09:49:46,314 INFO L175 Difference]: Start difference. First operand has 104 places, 102 transitions, 207 flow. Second operand 3 states and 284 transitions. [2024-10-13 09:49:46,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 102 transitions, 235 flow [2024-10-13 09:49:46,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 102 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:49:46,320 INFO L231 Difference]: Finished difference. Result has 106 places, 102 transitions, 216 flow [2024-10-13 09:49:46,322 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=106, PETRI_TRANSITIONS=102} [2024-10-13 09:49:46,325 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 2 predicate places. [2024-10-13 09:49:46,328 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 102 transitions, 216 flow [2024-10-13 09:49:46,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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) [2024-10-13 09:49:46,328 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:46,328 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] [2024-10-13 09:49:46,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:49:46,329 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-13 09:49:46,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:46,330 INFO L85 PathProgramCache]: Analyzing trace with hash 502389911, now seen corresponding path program 1 times [2024-10-13 09:49:46,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:46,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366254421] [2024-10-13 09:49:46,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:46,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:46,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:46,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:46,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366254421] [2024-10-13 09:49:46,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366254421] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:49:46,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305179804] [2024-10-13 09:49:46,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:46,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:46,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:49:46,504 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) [2024-10-13 09:49:46,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 09:49:46,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:46,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 09:49:46,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:49:46,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:46,632 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:49:46,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:46,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305179804] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:49:46,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:49:46,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-13 09:49:46,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891762358] [2024-10-13 09:49:46,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:49:46,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:49:46,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:46,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:49:46,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-13 09:49:46,700 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 103 [2024-10-13 09:49:46,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 102 transitions, 216 flow. Second operand has 10 states, 10 states have (on average 88.0) internal successors, (880), 10 states have internal predecessors, (880), 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) [2024-10-13 09:49:46,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:46,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 103 [2024-10-13 09:49:46,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:46,819 INFO L124 PetriNetUnfolderBase]: 11/247 cut-off events. [2024-10-13 09:49:46,819 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:49:46,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 247 events. 11/247 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 587 event pairs, 10 based on Foata normal form. 2/230 useless extension candidates. Maximal degree in co-relation 277. Up to 34 conditions per place. [2024-10-13 09:49:46,822 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 16 selfloop transitions, 9 changer transitions 0/110 dead transitions. [2024-10-13 09:49:46,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 110 transitions, 284 flow [2024-10-13 09:49:46,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 09:49:46,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 09:49:46,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 801 transitions. [2024-10-13 09:49:46,827 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8640776699029126 [2024-10-13 09:49:46,828 INFO L175 Difference]: Start difference. First operand has 106 places, 102 transitions, 216 flow. Second operand 9 states and 801 transitions. [2024-10-13 09:49:46,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 110 transitions, 284 flow [2024-10-13 09:49:46,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 110 transitions, 282 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:49:46,831 INFO L231 Difference]: Finished difference. Result has 116 places, 108 transitions, 264 flow [2024-10-13 09:49:46,832 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=264, PETRI_PLACES=116, PETRI_TRANSITIONS=108} [2024-10-13 09:49:46,833 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 12 predicate places. [2024-10-13 09:49:46,833 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 108 transitions, 264 flow [2024-10-13 09:49:46,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 88.0) internal successors, (880), 10 states have internal predecessors, (880), 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) [2024-10-13 09:49:46,834 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:46,834 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-10-13 09:49:46,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 09:49:47,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:47,039 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-13 09:49:47,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:47,040 INFO L85 PathProgramCache]: Analyzing trace with hash 371481399, now seen corresponding path program 2 times [2024-10-13 09:49:47,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:47,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311807746] [2024-10-13 09:49:47,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:47,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:47,197 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:47,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:47,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311807746] [2024-10-13 09:49:47,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311807746] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:49:47,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841356711] [2024-10-13 09:49:47,198 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:49:47,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:47,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:49:47,201 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) [2024-10-13 09:49:47,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 09:49:47,257 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:49:47,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:49:47,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-13 09:49:47,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:49:47,334 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 11 treesize of output 7 [2024-10-13 09:49:47,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-13 09:49:47,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:49:47,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-10-13 09:49:47,444 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:49:47,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-10-13 09:49:47,471 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-13 09:49:47,472 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:49:47,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841356711] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:47,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:49:47,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2024-10-13 09:49:47,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758893598] [2024-10-13 09:49:47,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:47,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 09:49:47,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:47,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 09:49:47,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-10-13 09:49:47,724 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 103 [2024-10-13 09:49:47,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 108 transitions, 264 flow. Second operand has 7 states, 7 states have (on average 73.14285714285714) internal successors, (512), 7 states have internal predecessors, (512), 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) [2024-10-13 09:49:47,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:47,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 103 [2024-10-13 09:49:47,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:47,995 INFO L124 PetriNetUnfolderBase]: 285/1031 cut-off events. [2024-10-13 09:49:47,995 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-13 09:49:47,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1684 conditions, 1031 events. 285/1031 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 6266 event pairs, 73 based on Foata normal form. 0/985 useless extension candidates. Maximal degree in co-relation 1628. Up to 286 conditions per place. [2024-10-13 09:49:48,001 INFO L140 encePairwiseOnDemand]: 80/103 looper letters, 97 selfloop transitions, 43 changer transitions 0/218 dead transitions. [2024-10-13 09:49:48,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 218 transitions, 764 flow [2024-10-13 09:49:48,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 09:49:48,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 09:49:48,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 646 transitions. [2024-10-13 09:49:48,003 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8959778085991679 [2024-10-13 09:49:48,003 INFO L175 Difference]: Start difference. First operand has 116 places, 108 transitions, 264 flow. Second operand 7 states and 646 transitions. [2024-10-13 09:49:48,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 218 transitions, 764 flow [2024-10-13 09:49:48,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 218 transitions, 758 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-13 09:49:48,007 INFO L231 Difference]: Finished difference. Result has 126 places, 154 transitions, 577 flow [2024-10-13 09:49:48,007 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=577, PETRI_PLACES=126, PETRI_TRANSITIONS=154} [2024-10-13 09:49:48,007 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 22 predicate places. [2024-10-13 09:49:48,007 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 154 transitions, 577 flow [2024-10-13 09:49:48,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.14285714285714) internal successors, (512), 7 states have internal predecessors, (512), 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) [2024-10-13 09:49:48,008 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:48,008 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-10-13 09:49:48,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 09:49:48,208 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,SelfDestructingSolverStorable2 [2024-10-13 09:49:48,210 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-13 09:49:48,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:48,211 INFO L85 PathProgramCache]: Analyzing trace with hash 2030826381, now seen corresponding path program 1 times [2024-10-13 09:49:48,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:48,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060185321] [2024-10-13 09:49:48,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:48,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:48,314 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:48,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:48,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060185321] [2024-10-13 09:49:48,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060185321] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:49:48,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004692438] [2024-10-13 09:49:48,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:48,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:48,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:49:48,317 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) [2024-10-13 09:49:48,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 09:49:48,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:48,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 09:49:48,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:49:48,425 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:48,425 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:49:48,497 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:48,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004692438] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:49:48,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:49:48,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-13 09:49:48,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008425859] [2024-10-13 09:49:48,499 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:49:48,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-13 09:49:48,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:48,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-13 09:49:48,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-13 09:49:48,527 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 103 [2024-10-13 09:49:48,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 154 transitions, 577 flow. Second operand has 18 states, 18 states have (on average 88.0) internal successors, (1584), 18 states have internal predecessors, (1584), 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) [2024-10-13 09:49:48,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:48,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 103 [2024-10-13 09:49:48,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:48,754 INFO L124 PetriNetUnfolderBase]: 127/780 cut-off events. [2024-10-13 09:49:48,755 INFO L125 PetriNetUnfolderBase]: For 136/151 co-relation queries the response was YES. [2024-10-13 09:49:48,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1493 conditions, 780 events. 127/780 cut-off events. For 136/151 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4662 event pairs, 45 based on Foata normal form. 4/765 useless extension candidates. Maximal degree in co-relation 1359. Up to 132 conditions per place. [2024-10-13 09:49:48,759 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 20 selfloop transitions, 21 changer transitions 0/172 dead transitions. [2024-10-13 09:49:48,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 172 transitions, 747 flow [2024-10-13 09:49:48,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-13 09:49:48,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-13 09:49:48,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1851 transitions. [2024-10-13 09:49:48,763 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.855755894590846 [2024-10-13 09:49:48,763 INFO L175 Difference]: Start difference. First operand has 126 places, 154 transitions, 577 flow. Second operand 21 states and 1851 transitions. [2024-10-13 09:49:48,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 172 transitions, 747 flow [2024-10-13 09:49:48,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 172 transitions, 746 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:49:48,772 INFO L231 Difference]: Finished difference. Result has 150 places, 167 transitions, 706 flow [2024-10-13 09:49:48,772 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=706, PETRI_PLACES=150, PETRI_TRANSITIONS=167} [2024-10-13 09:49:48,773 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 46 predicate places. [2024-10-13 09:49:48,773 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 167 transitions, 706 flow [2024-10-13 09:49:48,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 88.0) internal successors, (1584), 18 states have internal predecessors, (1584), 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) [2024-10-13 09:49:48,775 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:48,775 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:48,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 09:49:48,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:48,976 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-13 09:49:48,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:48,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1820522061, now seen corresponding path program 2 times [2024-10-13 09:49:48,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:48,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798872040] [2024-10-13 09:49:48,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:48,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:48,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:49,213 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:49,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:49,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798872040] [2024-10-13 09:49:49,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798872040] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:49:49,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168566957] [2024-10-13 09:49:49,214 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:49:49,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:49,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:49:49,216 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) [2024-10-13 09:49:49,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 09:49:49,283 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:49:49,283 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:49:49,285 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-13 09:49:49,287 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:49:49,356 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 11 treesize of output 7 [2024-10-13 09:49:49,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-13 09:49:49,404 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:49:49,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-10-13 09:49:49,438 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:49:49,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-10-13 09:49:49,465 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-13 09:49:49,465 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:49:49,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168566957] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:49,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:49:49,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17] total 22 [2024-10-13 09:49:49,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159632454] [2024-10-13 09:49:49,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:49,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 09:49:49,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:49,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 09:49:49,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-10-13 09:49:49,684 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 103 [2024-10-13 09:49:49,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 167 transitions, 706 flow. Second operand has 7 states, 7 states have (on average 84.14285714285714) internal successors, (589), 7 states have internal predecessors, (589), 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) [2024-10-13 09:49:49,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:49,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 103 [2024-10-13 09:49:49,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:49,770 INFO L124 PetriNetUnfolderBase]: 141/842 cut-off events. [2024-10-13 09:49:49,770 INFO L125 PetriNetUnfolderBase]: For 147/169 co-relation queries the response was YES. [2024-10-13 09:49:49,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1585 conditions, 842 events. 141/842 cut-off events. For 147/169 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5142 event pairs, 49 based on Foata normal form. 3/823 useless extension candidates. Maximal degree in co-relation 1444. Up to 129 conditions per place. [2024-10-13 09:49:49,774 INFO L140 encePairwiseOnDemand]: 96/103 looper letters, 20 selfloop transitions, 6 changer transitions 0/174 dead transitions. [2024-10-13 09:49:49,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 174 transitions, 772 flow [2024-10-13 09:49:49,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 09:49:49,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 09:49:49,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 608 transitions. [2024-10-13 09:49:49,775 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8432732316227461 [2024-10-13 09:49:49,775 INFO L175 Difference]: Start difference. First operand has 150 places, 167 transitions, 706 flow. Second operand 7 states and 608 transitions. [2024-10-13 09:49:49,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 174 transitions, 772 flow [2024-10-13 09:49:49,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 174 transitions, 748 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-13 09:49:49,780 INFO L231 Difference]: Finished difference. Result has 149 places, 166 transitions, 692 flow [2024-10-13 09:49:49,780 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=680, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=692, PETRI_PLACES=149, PETRI_TRANSITIONS=166} [2024-10-13 09:49:49,783 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 45 predicate places. [2024-10-13 09:49:49,783 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 166 transitions, 692 flow [2024-10-13 09:49:49,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 84.14285714285714) internal successors, (589), 7 states have internal predecessors, (589), 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) [2024-10-13 09:49:49,783 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:49,784 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:49,798 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 09:49:49,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:49,985 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-13 09:49:49,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:49,985 INFO L85 PathProgramCache]: Analyzing trace with hash 368504060, now seen corresponding path program 1 times [2024-10-13 09:49:49,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:49,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026348361] [2024-10-13 09:49:49,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:49,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:50,212 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:50,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:50,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026348361] [2024-10-13 09:49:50,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026348361] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:49:50,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714724377] [2024-10-13 09:49:50,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:50,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:50,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:49:50,216 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) [2024-10-13 09:49:50,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 09:49:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:50,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 09:49:50,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:49:50,346 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:50,347 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:49:50,512 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:49:50,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714724377] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:49:50,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:49:50,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-13 09:49:50,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283931776] [2024-10-13 09:49:50,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:49:50,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-13 09:49:50,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:50,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-13 09:49:50,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-13 09:49:50,537 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 103 [2024-10-13 09:49:50,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 166 transitions, 692 flow. Second operand has 23 states, 23 states have (on average 88.08695652173913) internal successors, (2026), 23 states have internal predecessors, (2026), 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) [2024-10-13 09:49:50,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:50,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 103 [2024-10-13 09:49:50,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:50,826 INFO L124 PetriNetUnfolderBase]: 127/794 cut-off events. [2024-10-13 09:49:50,827 INFO L125 PetriNetUnfolderBase]: For 253/268 co-relation queries the response was YES. [2024-10-13 09:49:50,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1588 conditions, 794 events. 127/794 cut-off events. For 253/268 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4656 event pairs, 45 based on Foata normal form. 3/779 useless extension candidates. Maximal degree in co-relation 1370. Up to 132 conditions per place. [2024-10-13 09:49:50,849 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 23 selfloop transitions, 30 changer transitions 0/183 dead transitions. [2024-10-13 09:49:50,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 183 transitions, 920 flow [2024-10-13 09:49:50,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-13 09:49:50,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-13 09:49:50,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2636 transitions. [2024-10-13 09:49:50,854 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8530744336569579 [2024-10-13 09:49:50,854 INFO L175 Difference]: Start difference. First operand has 149 places, 166 transitions, 692 flow. Second operand 30 states and 2636 transitions. [2024-10-13 09:49:50,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 183 transitions, 920 flow [2024-10-13 09:49:50,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 183 transitions, 908 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-13 09:49:50,859 INFO L231 Difference]: Finished difference. Result has 176 places, 176 transitions, 832 flow [2024-10-13 09:49:50,859 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=680, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=832, PETRI_PLACES=176, PETRI_TRANSITIONS=176} [2024-10-13 09:49:50,861 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 72 predicate places. [2024-10-13 09:49:50,861 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 176 transitions, 832 flow [2024-10-13 09:49:50,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 88.08695652173913) internal successors, (2026), 23 states have internal predecessors, (2026), 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) [2024-10-13 09:49:50,862 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:50,863 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:50,886 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 09:49:51,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:49:51,064 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-13 09:49:51,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:51,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1806104845, now seen corresponding path program 2 times [2024-10-13 09:49:51,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:51,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185710343] [2024-10-13 09:49:51,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:51,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:51,424 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:49:51,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:51,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185710343] [2024-10-13 09:49:51,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185710343] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:51,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:49:51,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:49:51,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677835260] [2024-10-13 09:49:51,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:51,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:49:51,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:51,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:49:51,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:49:51,613 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 103 [2024-10-13 09:49:51,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 176 transitions, 832 flow. Second operand has 6 states, 6 states have (on average 73.33333333333333) internal successors, (440), 6 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:51,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:51,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 103 [2024-10-13 09:49:51,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:51,829 INFO L124 PetriNetUnfolderBase]: 445/1452 cut-off events. [2024-10-13 09:49:51,829 INFO L125 PetriNetUnfolderBase]: For 726/760 co-relation queries the response was YES. [2024-10-13 09:49:51,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3616 conditions, 1452 events. 445/1452 cut-off events. For 726/760 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9393 event pairs, 117 based on Foata normal form. 24/1453 useless extension candidates. Maximal degree in co-relation 3398. Up to 640 conditions per place. [2024-10-13 09:49:51,836 INFO L140 encePairwiseOnDemand]: 86/103 looper letters, 109 selfloop transitions, 53 changer transitions 6/267 dead transitions. [2024-10-13 09:49:51,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 267 transitions, 1536 flow [2024-10-13 09:49:51,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:49:51,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:49:51,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 534 transitions. [2024-10-13 09:49:51,838 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8640776699029126 [2024-10-13 09:49:51,838 INFO L175 Difference]: Start difference. First operand has 176 places, 176 transitions, 832 flow. Second operand 6 states and 534 transitions. [2024-10-13 09:49:51,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 267 transitions, 1536 flow [2024-10-13 09:49:51,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 267 transitions, 1490 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-10-13 09:49:51,844 INFO L231 Difference]: Finished difference. Result has 168 places, 227 transitions, 1292 flow [2024-10-13 09:49:51,845 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=786, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1292, PETRI_PLACES=168, PETRI_TRANSITIONS=227} [2024-10-13 09:49:51,845 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 64 predicate places. [2024-10-13 09:49:51,845 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 227 transitions, 1292 flow [2024-10-13 09:49:51,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.33333333333333) internal successors, (440), 6 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:49:51,846 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:51,846 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:51,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 09:49:51,846 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-13 09:49:51,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:51,847 INFO L85 PathProgramCache]: Analyzing trace with hash 499443993, now seen corresponding path program 1 times [2024-10-13 09:49:51,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:51,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725524014] [2024-10-13 09:49:51,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:51,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:52,092 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:49:52,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:52,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725524014] [2024-10-13 09:49:52,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725524014] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:52,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:49:52,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:49:52,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538271662] [2024-10-13 09:49:52,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:52,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:49:52,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:52,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:49:52,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:49:52,315 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 103 [2024-10-13 09:49:52,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 227 transitions, 1292 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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) [2024-10-13 09:49:52,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:52,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 103 [2024-10-13 09:49:52,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:52,460 INFO L124 PetriNetUnfolderBase]: 255/1189 cut-off events. [2024-10-13 09:49:52,460 INFO L125 PetriNetUnfolderBase]: For 1031/1099 co-relation queries the response was YES. [2024-10-13 09:49:52,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2985 conditions, 1189 events. 255/1189 cut-off events. For 1031/1099 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7981 event pairs, 57 based on Foata normal form. 9/1178 useless extension candidates. Maximal degree in co-relation 2783. Up to 215 conditions per place. [2024-10-13 09:49:52,466 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 25 selfloop transitions, 5 changer transitions 0/234 dead transitions. [2024-10-13 09:49:52,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 234 transitions, 1366 flow [2024-10-13 09:49:52,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:49:52,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:49:52,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 505 transitions. [2024-10-13 09:49:52,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8171521035598706 [2024-10-13 09:49:52,468 INFO L175 Difference]: Start difference. First operand has 168 places, 227 transitions, 1292 flow. Second operand 6 states and 505 transitions. [2024-10-13 09:49:52,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 234 transitions, 1366 flow [2024-10-13 09:49:52,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 234 transitions, 1358 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-10-13 09:49:52,476 INFO L231 Difference]: Finished difference. Result has 172 places, 226 transitions, 1292 flow [2024-10-13 09:49:52,476 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=1282, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1292, PETRI_PLACES=172, PETRI_TRANSITIONS=226} [2024-10-13 09:49:52,476 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 68 predicate places. [2024-10-13 09:49:52,476 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 226 transitions, 1292 flow [2024-10-13 09:49:52,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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) [2024-10-13 09:49:52,477 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:52,477 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:52,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 09:49:52,477 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-13 09:49:52,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:52,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1016325404, now seen corresponding path program 1 times [2024-10-13 09:49:52,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:52,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242852215] [2024-10-13 09:49:52,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:52,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:52,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:52,773 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:49:52,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:52,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242852215] [2024-10-13 09:49:52,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242852215] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:52,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:49:52,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:49:52,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097139227] [2024-10-13 09:49:52,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:52,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:49:52,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:52,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:49:52,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:49:52,928 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 103 [2024-10-13 09:49:52,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 226 transitions, 1292 flow. Second operand has 6 states, 6 states have (on average 71.83333333333333) internal successors, (431), 6 states have internal predecessors, (431), 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) [2024-10-13 09:49:52,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:52,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 103 [2024-10-13 09:49:52,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:53,214 INFO L124 PetriNetUnfolderBase]: 594/1820 cut-off events. [2024-10-13 09:49:53,214 INFO L125 PetriNetUnfolderBase]: For 2542/2587 co-relation queries the response was YES. [2024-10-13 09:49:53,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5627 conditions, 1820 events. 594/1820 cut-off events. For 2542/2587 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 12337 event pairs, 150 based on Foata normal form. 25/1813 useless extension candidates. Maximal degree in co-relation 5424. Up to 891 conditions per place. [2024-10-13 09:49:53,222 INFO L140 encePairwiseOnDemand]: 86/103 looper letters, 122 selfloop transitions, 58 changer transitions 39/318 dead transitions. [2024-10-13 09:49:53,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 318 transitions, 2254 flow [2024-10-13 09:49:53,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:49:53,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:49:53,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 516 transitions. [2024-10-13 09:49:53,224 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8349514563106796 [2024-10-13 09:49:53,224 INFO L175 Difference]: Start difference. First operand has 172 places, 226 transitions, 1292 flow. Second operand 6 states and 516 transitions. [2024-10-13 09:49:53,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 318 transitions, 2254 flow [2024-10-13 09:49:53,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 318 transitions, 2244 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:49:53,234 INFO L231 Difference]: Finished difference. Result has 176 places, 253 transitions, 1690 flow [2024-10-13 09:49:53,234 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=1282, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1690, PETRI_PLACES=176, PETRI_TRANSITIONS=253} [2024-10-13 09:49:53,235 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 72 predicate places. [2024-10-13 09:49:53,235 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 253 transitions, 1690 flow [2024-10-13 09:49:53,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.83333333333333) internal successors, (431), 6 states have internal predecessors, (431), 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) [2024-10-13 09:49:53,235 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:53,235 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:53,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 09:49:53,236 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-13 09:49:53,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:53,236 INFO L85 PathProgramCache]: Analyzing trace with hash -542394151, now seen corresponding path program 1 times [2024-10-13 09:49:53,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:53,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145262466] [2024-10-13 09:49:53,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:53,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:53,313 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:49:53,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:53,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145262466] [2024-10-13 09:49:53,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145262466] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:53,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:49:53,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:49:53,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866021210] [2024-10-13 09:49:53,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:53,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:49:53,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:53,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:49:53,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:49:53,320 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 103 [2024-10-13 09:49:53,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 253 transitions, 1690 flow. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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) [2024-10-13 09:49:53,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:53,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 103 [2024-10-13 09:49:53,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:53,353 INFO L124 PetriNetUnfolderBase]: 6/234 cut-off events. [2024-10-13 09:49:53,353 INFO L125 PetriNetUnfolderBase]: For 279/279 co-relation queries the response was YES. [2024-10-13 09:49:53,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 629 conditions, 234 events. 6/234 cut-off events. For 279/279 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 324 event pairs, 3 based on Foata normal form. 2/236 useless extension candidates. Maximal degree in co-relation 423. Up to 23 conditions per place. [2024-10-13 09:49:53,354 INFO L140 encePairwiseOnDemand]: 99/103 looper letters, 0 selfloop transitions, 0 changer transitions 127/127 dead transitions. [2024-10-13 09:49:53,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 127 transitions, 624 flow [2024-10-13 09:49:53,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:49:53,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:49:53,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2024-10-13 09:49:53,355 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9449838187702265 [2024-10-13 09:49:53,356 INFO L175 Difference]: Start difference. First operand has 176 places, 253 transitions, 1690 flow. Second operand 3 states and 292 transitions. [2024-10-13 09:49:53,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 127 transitions, 624 flow [2024-10-13 09:49:53,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 127 transitions, 484 flow, removed 30 selfloop flow, removed 29 redundant places. [2024-10-13 09:49:53,359 INFO L231 Difference]: Finished difference. Result has 145 places, 0 transitions, 0 flow [2024-10-13 09:49:53,359 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=145, PETRI_TRANSITIONS=0} [2024-10-13 09:49:53,360 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 41 predicate places. [2024-10-13 09:49:53,360 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 0 transitions, 0 flow [2024-10-13 09:49:53,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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) [2024-10-13 09:49:53,364 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2024-10-13 09:49:53,364 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-10-13 09:49:53,364 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-10-13 09:49:53,365 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-10-13 09:49:53,365 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-10-13 09:49:53,365 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-10-13 09:49:53,365 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-10-13 09:49:53,365 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-10-13 09:49:53,365 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-10-13 09:49:53,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 09:49:53,365 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1] [2024-10-13 09:49:53,370 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 09:49:53,370 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 09:49:53,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:49:53 BasicIcfg [2024-10-13 09:49:53,377 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 09:49:53,377 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 09:49:53,377 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 09:49:53,377 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 09:49:53,378 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:49:45" (3/4) ... [2024-10-13 09:49:53,379 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 09:49:53,381 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-13 09:49:53,384 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-13 09:49:53,385 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-13 09:49:53,385 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-13 09:49:53,445 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 09:49:53,445 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 09:49:53,445 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 09:49:53,446 INFO L158 Benchmark]: Toolchain (without parser) took 8603.29ms. Allocated memory was 188.7MB in the beginning and 293.6MB in the end (delta: 104.9MB). Free memory was 117.2MB in the beginning and 123.2MB in the end (delta: -6.0MB). Peak memory consumption was 99.5MB. Max. memory is 16.1GB. [2024-10-13 09:49:53,446 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory is still 163.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 09:49:53,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 421.65ms. Allocated memory is still 188.7MB. Free memory was 117.0MB in the beginning and 141.6MB in the end (delta: -24.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 09:49:53,446 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.82ms. Allocated memory is still 188.7MB. Free memory was 141.6MB in the beginning and 138.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 09:49:53,446 INFO L158 Benchmark]: Boogie Preprocessor took 43.93ms. Allocated memory is still 188.7MB. Free memory was 138.8MB in the beginning and 136.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 09:49:53,447 INFO L158 Benchmark]: RCFGBuilder took 372.53ms. Allocated memory is still 188.7MB. Free memory was 136.7MB in the beginning and 117.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-13 09:49:53,447 INFO L158 Benchmark]: TraceAbstraction took 7644.16ms. Allocated memory was 188.7MB in the beginning and 293.6MB in the end (delta: 104.9MB). Free memory was 117.5MB in the beginning and 127.4MB in the end (delta: -10.0MB). Peak memory consumption was 98.0MB. Max. memory is 16.1GB. [2024-10-13 09:49:53,447 INFO L158 Benchmark]: Witness Printer took 68.28ms. Allocated memory is still 293.6MB. Free memory was 127.4MB in the beginning and 123.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 09:49:53,448 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory is still 163.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 421.65ms. Allocated memory is still 188.7MB. Free memory was 117.0MB in the beginning and 141.6MB in the end (delta: -24.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.82ms. Allocated memory is still 188.7MB. Free memory was 141.6MB in the beginning and 138.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.93ms. Allocated memory is still 188.7MB. Free memory was 138.8MB in the beginning and 136.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 372.53ms. Allocated memory is still 188.7MB. Free memory was 136.7MB in the beginning and 117.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7644.16ms. Allocated memory was 188.7MB in the beginning and 293.6MB in the end (delta: 104.9MB). Free memory was 117.5MB in the beginning and 127.4MB in the end (delta: -10.0MB). Peak memory consumption was 98.0MB. Max. memory is 16.1GB. * Witness Printer took 68.28ms. Allocated memory is still 293.6MB. Free memory was 127.4MB in the beginning and 123.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 130 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.5s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 879 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 590 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 85 mSDsCounter, 367 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2175 IncrementalHoareTripleChecker+Invalid, 2542 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 367 mSolverCounterUnsat, 16 mSDtfsCounter, 2175 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 502 GetRequests, 366 SyntacticMatches, 11 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 822 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1690occurred in iteration=9, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 917 NumberOfCodeBlocks, 867 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1044 ConstructedInterpolants, 0 QuantifiedInterpolants, 2115 SizeOfPredicates, 22 NumberOfNonLiveVariables, 527 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 18 InterpolantComputations, 7 PerfectInterpolantSequences, 1070/1593 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-13 09:49:53,466 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE