./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/04-mutex_04-munge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_04-munge_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 09d5acb2f81ee0994352651dad5f891cf0af6948836360f3240d2ea1a246e8a6 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 17:03:44,060 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:03:44,119 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 17:03:44,125 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:03:44,126 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:03:44,160 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:03:44,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:03:44,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:03:44,162 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:03:44,164 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:03:44,164 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:03:44,165 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:03:44,165 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:03:44,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:03:44,183 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 17:03:44,184 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:03:44,184 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:03:44,185 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:03:44,185 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:03:44,185 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 17:03:44,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:03:44,189 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 17:03:44,190 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 17:03:44,190 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:03:44,190 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:03:44,190 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:03:44,190 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 17:03:44,191 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:03:44,191 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:03:44,191 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:03:44,191 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:03:44,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:03:44,192 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:03:44,192 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:03:44,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 17:03:44,192 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:03:44,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:03:44,192 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:03:44,193 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:03:44,193 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:03:44,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:03:44,194 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09d5acb2f81ee0994352651dad5f891cf0af6948836360f3240d2ea1a246e8a6 [2024-10-14 17:03:44,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:03:44,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:03:44,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:03:44,499 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:03:44,499 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:03:44,501 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_04-munge_nr.i [2024-10-14 17:03:45,892 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:03:46,149 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:03:46,152 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_04-munge_nr.i [2024-10-14 17:03:46,174 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9dc39ec2/7d858b0a447a4767a6b826d47eb08b15/FLAG8451ad6a2 [2024-10-14 17:03:46,456 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9dc39ec2/7d858b0a447a4767a6b826d47eb08b15 [2024-10-14 17:03:46,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:03:46,460 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:03:46,463 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:03:46,463 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:03:46,468 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:03:46,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:03:46" (1/1) ... [2024-10-14 17:03:46,470 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b68c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:46, skipping insertion in model container [2024-10-14 17:03:46,470 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:03:46" (1/1) ... [2024-10-14 17:03:46,530 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:03:46,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:03:46,944 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:03:46,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:03:47,058 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:03:47,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:47 WrapperNode [2024-10-14 17:03:47,059 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:03:47,060 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:03:47,061 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:03:47,061 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:03:47,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:47" (1/1) ... [2024-10-14 17:03:47,088 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:47" (1/1) ... [2024-10-14 17:03:47,119 INFO L138 Inliner]: procedures = 263, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2024-10-14 17:03:47,120 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:03:47,120 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:03:47,121 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:03:47,121 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:03:47,128 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:47" (1/1) ... [2024-10-14 17:03:47,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:47" (1/1) ... [2024-10-14 17:03:47,131 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:47" (1/1) ... [2024-10-14 17:03:47,134 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:47" (1/1) ... [2024-10-14 17:03:47,137 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:47" (1/1) ... [2024-10-14 17:03:47,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:47" (1/1) ... [2024-10-14 17:03:47,146 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:47" (1/1) ... [2024-10-14 17:03:47,146 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:47" (1/1) ... [2024-10-14 17:03:47,148 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:03:47,153 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:03:47,153 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:03:47,153 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:03:47,154 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:47" (1/1) ... [2024-10-14 17:03:47,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:03:47,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:03:47,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 17:03:47,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 17:03:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-14 17:03:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-14 17:03:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 17:03:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-14 17:03:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-14 17:03:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 17:03:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:03:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:03:47,252 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 17:03:47,376 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:03:47,378 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:03:47,500 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 17:03:47,500 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:03:47,533 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:03:47,534 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 17:03:47,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:03:47 BoogieIcfgContainer [2024-10-14 17:03:47,536 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:03:47,538 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:03:47,538 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:03:47,542 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:03:47,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:03:46" (1/3) ... [2024-10-14 17:03:47,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dafc728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:03:47, skipping insertion in model container [2024-10-14 17:03:47,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:03:47" (2/3) ... [2024-10-14 17:03:47,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dafc728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:03:47, skipping insertion in model container [2024-10-14 17:03:47,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:03:47" (3/3) ... [2024-10-14 17:03:47,544 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_04-munge_nr.i [2024-10-14 17:03:47,559 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:03:47,560 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-14 17:03:47,560 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 17:03:47,614 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-14 17:03:47,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 64 transitions, 135 flow [2024-10-14 17:03:47,706 INFO L124 PetriNetUnfolderBase]: 0/63 cut-off events. [2024-10-14 17:03:47,707 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:03:47,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 63 events. 0/63 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-14 17:03:47,712 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 64 transitions, 135 flow [2024-10-14 17:03:47,717 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 58 transitions, 119 flow [2024-10-14 17:03:47,729 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:03:47,738 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;@337639a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:03:47,740 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-14 17:03:47,754 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:03:47,756 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2024-10-14 17:03:47,756 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:03:47,756 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:47,758 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] [2024-10-14 17:03:47,759 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 17:03:47,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:47,765 INFO L85 PathProgramCache]: Analyzing trace with hash 511625068, now seen corresponding path program 1 times [2024-10-14 17:03:47,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:47,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290108147] [2024-10-14 17:03:47,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:47,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:48,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:48,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:48,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290108147] [2024-10-14 17:03:48,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290108147] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:48,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:48,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:03:48,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625558813] [2024-10-14 17:03:48,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:48,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:03:48,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:48,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:03:48,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:03:48,138 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 64 [2024-10-14 17:03:48,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:48,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:48,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 64 [2024-10-14 17:03:48,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:48,225 INFO L124 PetriNetUnfolderBase]: 31/195 cut-off events. [2024-10-14 17:03:48,225 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:03:48,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 195 events. 31/195 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 807 event pairs, 13 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 256. Up to 44 conditions per place. [2024-10-14 17:03:48,232 INFO L140 encePairwiseOnDemand]: 56/64 looper letters, 17 selfloop transitions, 6 changer transitions 0/68 dead transitions. [2024-10-14 17:03:48,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 68 transitions, 185 flow [2024-10-14 17:03:48,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:03:48,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:03:48,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 175 transitions. [2024-10-14 17:03:48,246 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9114583333333334 [2024-10-14 17:03:48,248 INFO L175 Difference]: Start difference. First operand has 62 places, 58 transitions, 119 flow. Second operand 3 states and 175 transitions. [2024-10-14 17:03:48,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 68 transitions, 185 flow [2024-10-14 17:03:48,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 68 transitions, 184 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:03:48,257 INFO L231 Difference]: Finished difference. Result has 65 places, 64 transitions, 170 flow [2024-10-14 17:03:48,259 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=65, PETRI_TRANSITIONS=64} [2024-10-14 17:03:48,265 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 3 predicate places. [2024-10-14 17:03:48,266 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 64 transitions, 170 flow [2024-10-14 17:03:48,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:48,267 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:48,267 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:03:48,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:03:48,268 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 17:03:48,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:48,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1442047057, now seen corresponding path program 1 times [2024-10-14 17:03:48,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:48,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532869732] [2024-10-14 17:03:48,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:48,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:48,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:48,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:48,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532869732] [2024-10-14 17:03:48,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532869732] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:48,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:48,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:03:48,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27044813] [2024-10-14 17:03:48,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:48,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:03:48,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:48,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:03:48,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:03:48,404 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 64 [2024-10-14 17:03:48,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 64 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:48,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:48,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 64 [2024-10-14 17:03:48,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:48,468 INFO L124 PetriNetUnfolderBase]: 56/263 cut-off events. [2024-10-14 17:03:48,469 INFO L125 PetriNetUnfolderBase]: For 107/115 co-relation queries the response was YES. [2024-10-14 17:03:48,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 263 events. 56/263 cut-off events. For 107/115 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1284 event pairs, 30 based on Foata normal form. 4/250 useless extension candidates. Maximal degree in co-relation 476. Up to 108 conditions per place. [2024-10-14 17:03:48,471 INFO L140 encePairwiseOnDemand]: 58/64 looper letters, 18 selfloop transitions, 7 changer transitions 1/71 dead transitions. [2024-10-14 17:03:48,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 71 transitions, 246 flow [2024-10-14 17:03:48,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:03:48,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:03:48,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 166 transitions. [2024-10-14 17:03:48,473 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8645833333333334 [2024-10-14 17:03:48,474 INFO L175 Difference]: Start difference. First operand has 65 places, 64 transitions, 170 flow. Second operand 3 states and 166 transitions. [2024-10-14 17:03:48,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 71 transitions, 246 flow [2024-10-14 17:03:48,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 71 transitions, 230 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:03:48,479 INFO L231 Difference]: Finished difference. Result has 67 places, 69 transitions, 214 flow [2024-10-14 17:03:48,480 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=67, PETRI_TRANSITIONS=69} [2024-10-14 17:03:48,481 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 5 predicate places. [2024-10-14 17:03:48,481 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 69 transitions, 214 flow [2024-10-14 17:03:48,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:48,482 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:48,482 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:03:48,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 17:03:48,482 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 17:03:48,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:48,484 INFO L85 PathProgramCache]: Analyzing trace with hash -118161824, now seen corresponding path program 1 times [2024-10-14 17:03:48,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:48,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323176999] [2024-10-14 17:03:48,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:48,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:48,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:48,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:48,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323176999] [2024-10-14 17:03:48,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323176999] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:48,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:48,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:03:48,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012852215] [2024-10-14 17:03:48,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:48,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:03:48,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:48,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:03:48,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:03:48,594 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 64 [2024-10-14 17:03:48,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 69 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:48,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:48,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 64 [2024-10-14 17:03:48,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:48,658 INFO L124 PetriNetUnfolderBase]: 69/295 cut-off events. [2024-10-14 17:03:48,658 INFO L125 PetriNetUnfolderBase]: For 207/215 co-relation queries the response was YES. [2024-10-14 17:03:48,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 642 conditions, 295 events. 69/295 cut-off events. For 207/215 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1435 event pairs, 30 based on Foata normal form. 2/281 useless extension candidates. Maximal degree in co-relation 617. Up to 125 conditions per place. [2024-10-14 17:03:48,660 INFO L140 encePairwiseOnDemand]: 58/64 looper letters, 17 selfloop transitions, 7 changer transitions 7/76 dead transitions. [2024-10-14 17:03:48,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 76 transitions, 300 flow [2024-10-14 17:03:48,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:03:48,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:03:48,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 166 transitions. [2024-10-14 17:03:48,661 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8645833333333334 [2024-10-14 17:03:48,662 INFO L175 Difference]: Start difference. First operand has 67 places, 69 transitions, 214 flow. Second operand 3 states and 166 transitions. [2024-10-14 17:03:48,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 76 transitions, 300 flow [2024-10-14 17:03:48,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 76 transitions, 282 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:03:48,664 INFO L231 Difference]: Finished difference. Result has 69 places, 68 transitions, 232 flow [2024-10-14 17:03:48,664 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=69, PETRI_TRANSITIONS=68} [2024-10-14 17:03:48,665 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 7 predicate places. [2024-10-14 17:03:48,665 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 68 transitions, 232 flow [2024-10-14 17:03:48,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:48,665 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:48,665 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:03:48,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 17:03:48,666 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 17:03:48,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:48,666 INFO L85 PathProgramCache]: Analyzing trace with hash -175451875, now seen corresponding path program 1 times [2024-10-14 17:03:48,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:48,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949475777] [2024-10-14 17:03:48,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:48,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:48,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:48,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:48,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949475777] [2024-10-14 17:03:48,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949475777] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:48,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:48,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 17:03:48,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425049578] [2024-10-14 17:03:48,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:48,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 17:03:48,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:48,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 17:03:48,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 17:03:48,999 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2024-10-14 17:03:49,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 68 transitions, 232 flow. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:49,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:49,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2024-10-14 17:03:49,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:49,274 INFO L124 PetriNetUnfolderBase]: 72/423 cut-off events. [2024-10-14 17:03:49,274 INFO L125 PetriNetUnfolderBase]: For 185/185 co-relation queries the response was YES. [2024-10-14 17:03:49,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 865 conditions, 423 events. 72/423 cut-off events. For 185/185 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2425 event pairs, 16 based on Foata normal form. 1/415 useless extension candidates. Maximal degree in co-relation 838. Up to 54 conditions per place. [2024-10-14 17:03:49,280 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 17 selfloop transitions, 14 changer transitions 21/104 dead transitions. [2024-10-14 17:03:49,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 104 transitions, 408 flow [2024-10-14 17:03:49,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 17:03:49,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-14 17:03:49,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 570 transitions. [2024-10-14 17:03:49,284 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8096590909090909 [2024-10-14 17:03:49,284 INFO L175 Difference]: Start difference. First operand has 69 places, 68 transitions, 232 flow. Second operand 11 states and 570 transitions. [2024-10-14 17:03:49,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 104 transitions, 408 flow [2024-10-14 17:03:49,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 104 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:03:49,295 INFO L231 Difference]: Finished difference. Result has 79 places, 74 transitions, 264 flow [2024-10-14 17:03:49,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=264, PETRI_PLACES=79, PETRI_TRANSITIONS=74} [2024-10-14 17:03:49,297 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 17 predicate places. [2024-10-14 17:03:49,298 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 74 transitions, 264 flow [2024-10-14 17:03:49,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:49,299 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:49,299 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:03:49,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 17:03:49,299 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 17:03:49,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:49,303 INFO L85 PathProgramCache]: Analyzing trace with hash -157100995, now seen corresponding path program 2 times [2024-10-14 17:03:49,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:49,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977828271] [2024-10-14 17:03:49,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:49,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:49,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:49,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:49,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977828271] [2024-10-14 17:03:49,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977828271] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:49,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:49,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 17:03:49,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779450935] [2024-10-14 17:03:49,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:49,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 17:03:49,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:49,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 17:03:49,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 17:03:49,548 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2024-10-14 17:03:49,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 74 transitions, 264 flow. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:49,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:49,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2024-10-14 17:03:49,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:49,749 INFO L124 PetriNetUnfolderBase]: 67/495 cut-off events. [2024-10-14 17:03:49,750 INFO L125 PetriNetUnfolderBase]: For 244/252 co-relation queries the response was YES. [2024-10-14 17:03:49,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1101 conditions, 495 events. 67/495 cut-off events. For 244/252 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3206 event pairs, 9 based on Foata normal form. 9/490 useless extension candidates. Maximal degree in co-relation 1072. Up to 76 conditions per place. [2024-10-14 17:03:49,752 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 23 selfloop transitions, 18 changer transitions 7/100 dead transitions. [2024-10-14 17:03:49,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 100 transitions, 452 flow [2024-10-14 17:03:49,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 17:03:49,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 17:03:49,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 516 transitions. [2024-10-14 17:03:49,754 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.80625 [2024-10-14 17:03:49,754 INFO L175 Difference]: Start difference. First operand has 79 places, 74 transitions, 264 flow. Second operand 10 states and 516 transitions. [2024-10-14 17:03:49,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 100 transitions, 452 flow [2024-10-14 17:03:49,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 100 transitions, 446 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-10-14 17:03:49,763 INFO L231 Difference]: Finished difference. Result has 91 places, 83 transitions, 369 flow [2024-10-14 17:03:49,764 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=369, PETRI_PLACES=91, PETRI_TRANSITIONS=83} [2024-10-14 17:03:49,765 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 29 predicate places. [2024-10-14 17:03:49,765 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 83 transitions, 369 flow [2024-10-14 17:03:49,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:49,765 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:49,765 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:03:49,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 17:03:49,766 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 17:03:49,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:49,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1907650449, now seen corresponding path program 3 times [2024-10-14 17:03:49,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:49,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657015808] [2024-10-14 17:03:49,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:49,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:49,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:49,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:49,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657015808] [2024-10-14 17:03:49,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657015808] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:49,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:49,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 17:03:49,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269546776] [2024-10-14 17:03:49,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:49,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 17:03:49,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:49,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 17:03:49,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 17:03:50,029 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2024-10-14 17:03:50,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 83 transitions, 369 flow. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:50,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:50,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2024-10-14 17:03:50,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:50,272 INFO L124 PetriNetUnfolderBase]: 94/642 cut-off events. [2024-10-14 17:03:50,272 INFO L125 PetriNetUnfolderBase]: For 620/636 co-relation queries the response was YES. [2024-10-14 17:03:50,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1624 conditions, 642 events. 94/642 cut-off events. For 620/636 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4707 event pairs, 16 based on Foata normal form. 9/631 useless extension candidates. Maximal degree in co-relation 1598. Up to 102 conditions per place. [2024-10-14 17:03:50,276 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 22 selfloop transitions, 26 changer transitions 3/103 dead transitions. [2024-10-14 17:03:50,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 103 transitions, 577 flow [2024-10-14 17:03:50,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 17:03:50,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-14 17:03:50,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 559 transitions. [2024-10-14 17:03:50,278 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7940340909090909 [2024-10-14 17:03:50,278 INFO L175 Difference]: Start difference. First operand has 91 places, 83 transitions, 369 flow. Second operand 11 states and 559 transitions. [2024-10-14 17:03:50,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 103 transitions, 577 flow [2024-10-14 17:03:50,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 103 transitions, 553 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-10-14 17:03:50,282 INFO L231 Difference]: Finished difference. Result has 98 places, 92 transitions, 494 flow [2024-10-14 17:03:50,283 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=494, PETRI_PLACES=98, PETRI_TRANSITIONS=92} [2024-10-14 17:03:50,284 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 36 predicate places. [2024-10-14 17:03:50,284 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 92 transitions, 494 flow [2024-10-14 17:03:50,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:50,285 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:50,285 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:03:50,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 17:03:50,285 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 17:03:50,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:50,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1213033765, now seen corresponding path program 4 times [2024-10-14 17:03:50,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:50,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452611105] [2024-10-14 17:03:50,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:50,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:50,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:50,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:50,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452611105] [2024-10-14 17:03:50,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452611105] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:50,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:50,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 17:03:50,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358709171] [2024-10-14 17:03:50,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:50,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 17:03:50,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:50,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 17:03:50,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 17:03:50,484 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2024-10-14 17:03:50,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 92 transitions, 494 flow. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:50,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:50,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2024-10-14 17:03:50,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:50,722 INFO L124 PetriNetUnfolderBase]: 93/647 cut-off events. [2024-10-14 17:03:50,722 INFO L125 PetriNetUnfolderBase]: For 1040/1054 co-relation queries the response was YES. [2024-10-14 17:03:50,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1735 conditions, 647 events. 93/647 cut-off events. For 1040/1054 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4731 event pairs, 13 based on Foata normal form. 10/639 useless extension candidates. Maximal degree in co-relation 1699. Up to 104 conditions per place. [2024-10-14 17:03:50,726 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 26 selfloop transitions, 26 changer transitions 2/106 dead transitions. [2024-10-14 17:03:50,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 106 transitions, 669 flow [2024-10-14 17:03:50,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 17:03:50,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-14 17:03:50,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 568 transitions. [2024-10-14 17:03:50,728 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8068181818181818 [2024-10-14 17:03:50,729 INFO L175 Difference]: Start difference. First operand has 98 places, 92 transitions, 494 flow. Second operand 11 states and 568 transitions. [2024-10-14 17:03:50,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 106 transitions, 669 flow [2024-10-14 17:03:50,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 106 transitions, 651 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-14 17:03:50,734 INFO L231 Difference]: Finished difference. Result has 108 places, 96 transitions, 588 flow [2024-10-14 17:03:50,735 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=588, PETRI_PLACES=108, PETRI_TRANSITIONS=96} [2024-10-14 17:03:50,735 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 46 predicate places. [2024-10-14 17:03:50,735 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 96 transitions, 588 flow [2024-10-14 17:03:50,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:50,736 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:50,736 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:03:50,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 17:03:50,736 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 17:03:50,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:50,737 INFO L85 PathProgramCache]: Analyzing trace with hash -942049643, now seen corresponding path program 5 times [2024-10-14 17:03:50,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:50,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345245413] [2024-10-14 17:03:50,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:50,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:50,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:50,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:50,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:50,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345245413] [2024-10-14 17:03:50,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345245413] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:50,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:50,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 17:03:50,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177451696] [2024-10-14 17:03:50,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:50,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 17:03:50,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:50,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 17:03:50,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 17:03:50,892 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2024-10-14 17:03:50,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 96 transitions, 588 flow. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:50,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:50,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2024-10-14 17:03:50,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:51,096 INFO L124 PetriNetUnfolderBase]: 64/508 cut-off events. [2024-10-14 17:03:51,097 INFO L125 PetriNetUnfolderBase]: For 1096/1106 co-relation queries the response was YES. [2024-10-14 17:03:51,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1421 conditions, 508 events. 64/508 cut-off events. For 1096/1106 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3390 event pairs, 9 based on Foata normal form. 8/504 useless extension candidates. Maximal degree in co-relation 1381. Up to 80 conditions per place. [2024-10-14 17:03:51,101 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 22 selfloop transitions, 16 changer transitions 8/98 dead transitions. [2024-10-14 17:03:51,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 98 transitions, 645 flow [2024-10-14 17:03:51,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 17:03:51,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 17:03:51,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 514 transitions. [2024-10-14 17:03:51,103 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.803125 [2024-10-14 17:03:51,103 INFO L175 Difference]: Start difference. First operand has 108 places, 96 transitions, 588 flow. Second operand 10 states and 514 transitions. [2024-10-14 17:03:51,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 98 transitions, 645 flow [2024-10-14 17:03:51,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 98 transitions, 608 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-10-14 17:03:51,110 INFO L231 Difference]: Finished difference. Result has 111 places, 86 transitions, 471 flow [2024-10-14 17:03:51,110 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=483, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=471, PETRI_PLACES=111, PETRI_TRANSITIONS=86} [2024-10-14 17:03:51,111 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 49 predicate places. [2024-10-14 17:03:51,111 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 86 transitions, 471 flow [2024-10-14 17:03:51,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:51,111 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:51,112 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:03:51,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 17:03:51,112 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 17:03:51,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:51,113 INFO L85 PathProgramCache]: Analyzing trace with hash 768173201, now seen corresponding path program 6 times [2024-10-14 17:03:51,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:51,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649079026] [2024-10-14 17:03:51,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:51,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:51,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:51,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:51,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649079026] [2024-10-14 17:03:51,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649079026] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:51,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:51,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 17:03:51,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611523388] [2024-10-14 17:03:51,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:51,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 17:03:51,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:51,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 17:03:51,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 17:03:51,315 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2024-10-14 17:03:51,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 86 transitions, 471 flow. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:51,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:51,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2024-10-14 17:03:51,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:51,509 INFO L124 PetriNetUnfolderBase]: 60/468 cut-off events. [2024-10-14 17:03:51,509 INFO L125 PetriNetUnfolderBase]: For 952/964 co-relation queries the response was YES. [2024-10-14 17:03:51,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1317 conditions, 468 events. 60/468 cut-off events. For 952/964 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3015 event pairs, 13 based on Foata normal form. 10/465 useless extension candidates. Maximal degree in co-relation 1292. Up to 72 conditions per place. [2024-10-14 17:03:51,512 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 22 selfloop transitions, 17 changer transitions 12/103 dead transitions. [2024-10-14 17:03:51,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 103 transitions, 691 flow [2024-10-14 17:03:51,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 17:03:51,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 17:03:51,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 460 transitions. [2024-10-14 17:03:51,514 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7986111111111112 [2024-10-14 17:03:51,514 INFO L175 Difference]: Start difference. First operand has 111 places, 86 transitions, 471 flow. Second operand 9 states and 460 transitions. [2024-10-14 17:03:51,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 103 transitions, 691 flow [2024-10-14 17:03:51,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 103 transitions, 587 flow, removed 15 selfloop flow, removed 14 redundant places. [2024-10-14 17:03:51,520 INFO L231 Difference]: Finished difference. Result has 104 places, 84 transitions, 448 flow [2024-10-14 17:03:51,520 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=448, PETRI_PLACES=104, PETRI_TRANSITIONS=84} [2024-10-14 17:03:51,521 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 42 predicate places. [2024-10-14 17:03:51,521 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 84 transitions, 448 flow [2024-10-14 17:03:51,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:51,522 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:51,522 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:03:51,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 17:03:51,522 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 17:03:51,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:51,523 INFO L85 PathProgramCache]: Analyzing trace with hash -77072579, now seen corresponding path program 7 times [2024-10-14 17:03:51,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:51,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783770121] [2024-10-14 17:03:51,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:51,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:51,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:51,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:51,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783770121] [2024-10-14 17:03:51,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783770121] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:51,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:51,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 17:03:51,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538875191] [2024-10-14 17:03:51,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:51,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 17:03:51,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:51,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 17:03:51,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 17:03:51,722 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2024-10-14 17:03:51,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 84 transitions, 448 flow. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:51,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:51,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2024-10-14 17:03:51,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:51,892 INFO L124 PetriNetUnfolderBase]: 28/295 cut-off events. [2024-10-14 17:03:51,892 INFO L125 PetriNetUnfolderBase]: For 434/440 co-relation queries the response was YES. [2024-10-14 17:03:51,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 782 conditions, 295 events. 28/295 cut-off events. For 434/440 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1524 event pairs, 5 based on Foata normal form. 5/294 useless extension candidates. Maximal degree in co-relation 758. Up to 44 conditions per place. [2024-10-14 17:03:51,894 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 14 selfloop transitions, 10 changer transitions 7/83 dead transitions. [2024-10-14 17:03:51,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 83 transitions, 465 flow [2024-10-14 17:03:51,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 17:03:51,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 17:03:51,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 455 transitions. [2024-10-14 17:03:51,896 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7899305555555556 [2024-10-14 17:03:51,896 INFO L175 Difference]: Start difference. First operand has 104 places, 84 transitions, 448 flow. Second operand 9 states and 455 transitions. [2024-10-14 17:03:51,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 83 transitions, 465 flow [2024-10-14 17:03:51,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 83 transitions, 408 flow, removed 6 selfloop flow, removed 12 redundant places. [2024-10-14 17:03:51,915 INFO L231 Difference]: Finished difference. Result has 94 places, 72 transitions, 302 flow [2024-10-14 17:03:51,916 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=302, PETRI_PLACES=94, PETRI_TRANSITIONS=72} [2024-10-14 17:03:51,916 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 32 predicate places. [2024-10-14 17:03:51,918 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 72 transitions, 302 flow [2024-10-14 17:03:51,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:51,918 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:51,918 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:03:51,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 17:03:51,919 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 17:03:51,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:51,919 INFO L85 PathProgramCache]: Analyzing trace with hash -559732011, now seen corresponding path program 8 times [2024-10-14 17:03:51,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:51,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309554317] [2024-10-14 17:03:51,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:51,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:51,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:52,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:52,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:52,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309554317] [2024-10-14 17:03:52,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309554317] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:52,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:52,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 17:03:52,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527879486] [2024-10-14 17:03:52,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:52,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 17:03:52,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:52,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 17:03:52,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 17:03:52,084 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2024-10-14 17:03:52,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 72 transitions, 302 flow. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:52,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:52,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2024-10-14 17:03:52,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:52,236 INFO L124 PetriNetUnfolderBase]: 26/267 cut-off events. [2024-10-14 17:03:52,236 INFO L125 PetriNetUnfolderBase]: For 297/305 co-relation queries the response was YES. [2024-10-14 17:03:52,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 661 conditions, 267 events. 26/267 cut-off events. For 297/305 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1288 event pairs, 3 based on Foata normal form. 7/266 useless extension candidates. Maximal degree in co-relation 648. Up to 38 conditions per place. [2024-10-14 17:03:52,237 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 10 selfloop transitions, 10 changer transitions 12/84 dead transitions. [2024-10-14 17:03:52,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 84 transitions, 431 flow [2024-10-14 17:03:52,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 17:03:52,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 17:03:52,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 408 transitions. [2024-10-14 17:03:52,239 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.796875 [2024-10-14 17:03:52,239 INFO L175 Difference]: Start difference. First operand has 94 places, 72 transitions, 302 flow. Second operand 8 states and 408 transitions. [2024-10-14 17:03:52,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 84 transitions, 431 flow [2024-10-14 17:03:52,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 84 transitions, 373 flow, removed 8 selfloop flow, removed 10 redundant places. [2024-10-14 17:03:52,243 INFO L231 Difference]: Finished difference. Result has 86 places, 70 transitions, 289 flow [2024-10-14 17:03:52,243 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=289, PETRI_PLACES=86, PETRI_TRANSITIONS=70} [2024-10-14 17:03:52,243 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 24 predicate places. [2024-10-14 17:03:52,244 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 70 transitions, 289 flow [2024-10-14 17:03:52,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:52,244 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:52,244 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:03:52,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 17:03:52,244 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 17:03:52,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:52,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1368144959, now seen corresponding path program 9 times [2024-10-14 17:03:52,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:52,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161010841] [2024-10-14 17:03:52,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:52,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:52,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:52,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:52,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161010841] [2024-10-14 17:03:52,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161010841] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:52,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:52,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 17:03:52,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136642383] [2024-10-14 17:03:52,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:52,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 17:03:52,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:52,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 17:03:52,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 17:03:52,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2024-10-14 17:03:52,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 70 transitions, 289 flow. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:52,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:52,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2024-10-14 17:03:52,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:52,527 INFO L124 PetriNetUnfolderBase]: 23/229 cut-off events. [2024-10-14 17:03:52,528 INFO L125 PetriNetUnfolderBase]: For 290/296 co-relation queries the response was YES. [2024-10-14 17:03:52,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 561 conditions, 229 events. 23/229 cut-off events. For 290/296 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1040 event pairs, 4 based on Foata normal form. 4/227 useless extension candidates. Maximal degree in co-relation 549. Up to 32 conditions per place. [2024-10-14 17:03:52,529 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 8 selfloop transitions, 12 changer transitions 3/75 dead transitions. [2024-10-14 17:03:52,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 75 transitions, 353 flow [2024-10-14 17:03:52,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 17:03:52,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 17:03:52,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 400 transitions. [2024-10-14 17:03:52,531 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.78125 [2024-10-14 17:03:52,531 INFO L175 Difference]: Start difference. First operand has 86 places, 70 transitions, 289 flow. Second operand 8 states and 400 transitions. [2024-10-14 17:03:52,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 75 transitions, 353 flow [2024-10-14 17:03:52,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 75 transitions, 312 flow, removed 4 selfloop flow, removed 8 redundant places. [2024-10-14 17:03:52,533 INFO L231 Difference]: Finished difference. Result has 83 places, 70 transitions, 280 flow [2024-10-14 17:03:52,533 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=280, PETRI_PLACES=83, PETRI_TRANSITIONS=70} [2024-10-14 17:03:52,534 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 21 predicate places. [2024-10-14 17:03:52,534 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 70 transitions, 280 flow [2024-10-14 17:03:52,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:52,535 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:52,535 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:03:52,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 17:03:52,535 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 17:03:52,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:52,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1169499965, now seen corresponding path program 10 times [2024-10-14 17:03:52,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:52,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766170377] [2024-10-14 17:03:52,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:52,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:52,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:52,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:52,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766170377] [2024-10-14 17:03:52,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766170377] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:52,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:52,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 17:03:52,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279778684] [2024-10-14 17:03:52,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:52,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 17:03:52,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:52,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 17:03:52,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 17:03:52,719 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2024-10-14 17:03:52,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 70 transitions, 280 flow. Second operand has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:52,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:52,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2024-10-14 17:03:52,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:52,815 INFO L124 PetriNetUnfolderBase]: 5/72 cut-off events. [2024-10-14 17:03:52,815 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-10-14 17:03:52,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 72 events. 5/72 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 119 event pairs, 1 based on Foata normal form. 2/74 useless extension candidates. Maximal degree in co-relation 152. Up to 9 conditions per place. [2024-10-14 17:03:52,815 INFO L140 encePairwiseOnDemand]: 58/64 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2024-10-14 17:03:52,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 48 transitions, 193 flow [2024-10-14 17:03:52,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 17:03:52,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 17:03:52,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 345 transitions. [2024-10-14 17:03:52,817 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7700892857142857 [2024-10-14 17:03:52,817 INFO L175 Difference]: Start difference. First operand has 83 places, 70 transitions, 280 flow. Second operand 7 states and 345 transitions. [2024-10-14 17:03:52,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 48 transitions, 193 flow [2024-10-14 17:03:52,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 48 transitions, 149 flow, removed 8 selfloop flow, removed 11 redundant places. [2024-10-14 17:03:52,819 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2024-10-14 17:03:52,819 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2024-10-14 17:03:52,819 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 0 predicate places. [2024-10-14 17:03:52,819 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2024-10-14 17:03:52,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.42857142857143) internal successors, (339), 7 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:03:52,822 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-10-14 17:03:52,823 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-10-14 17:03:52,823 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-10-14 17:03:52,823 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-10-14 17:03:52,823 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-10-14 17:03:52,823 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-10-14 17:03:52,823 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-10-14 17:03:52,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 17:03:52,824 INFO L407 BasicCegarLoop]: Path program histogram: [10, 1, 1, 1] [2024-10-14 17:03:52,829 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 17:03:52,829 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 17:03:52,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 05:03:52 BasicIcfg [2024-10-14 17:03:52,834 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 17:03:52,834 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 17:03:52,834 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 17:03:52,834 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 17:03:52,835 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:03:47" (3/4) ... [2024-10-14 17:03:52,836 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 17:03:52,839 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-14 17:03:52,842 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-14 17:03:52,842 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-14 17:03:52,842 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-14 17:03:52,922 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 17:03:52,922 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 17:03:52,922 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 17:03:52,923 INFO L158 Benchmark]: Toolchain (without parser) took 6463.06ms. Allocated memory was 125.8MB in the beginning and 262.1MB in the end (delta: 136.3MB). Free memory was 55.2MB in the beginning and 178.5MB in the end (delta: -123.3MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2024-10-14 17:03:52,923 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 92.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 17:03:52,923 INFO L158 Benchmark]: CACSL2BoogieTranslator took 596.99ms. Allocated memory was 125.8MB in the beginning and 180.4MB in the end (delta: 54.5MB). Free memory was 55.0MB in the beginning and 126.9MB in the end (delta: -71.9MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2024-10-14 17:03:52,923 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.52ms. Allocated memory is still 180.4MB. Free memory was 126.1MB in the beginning and 124.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 17:03:52,924 INFO L158 Benchmark]: Boogie Preprocessor took 31.61ms. Allocated memory is still 180.4MB. Free memory was 124.1MB in the beginning and 122.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 17:03:52,924 INFO L158 Benchmark]: RCFGBuilder took 383.44ms. Allocated memory is still 180.4MB. Free memory was 122.8MB in the beginning and 109.4MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-14 17:03:52,924 INFO L158 Benchmark]: TraceAbstraction took 5295.78ms. Allocated memory was 180.4MB in the beginning and 262.1MB in the end (delta: 81.8MB). Free memory was 108.1MB in the beginning and 182.7MB in the end (delta: -74.6MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2024-10-14 17:03:52,925 INFO L158 Benchmark]: Witness Printer took 87.93ms. Allocated memory is still 262.1MB. Free memory was 182.7MB in the beginning and 178.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 17:03:52,926 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 92.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 596.99ms. Allocated memory was 125.8MB in the beginning and 180.4MB in the end (delta: 54.5MB). Free memory was 55.0MB in the beginning and 126.9MB in the end (delta: -71.9MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.52ms. Allocated memory is still 180.4MB. Free memory was 126.1MB in the beginning and 124.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.61ms. Allocated memory is still 180.4MB. Free memory was 124.1MB in the beginning and 122.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 383.44ms. Allocated memory is still 180.4MB. Free memory was 122.8MB in the beginning and 109.4MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5295.78ms. Allocated memory was 180.4MB in the beginning and 262.1MB in the end (delta: 81.8MB). Free memory was 108.1MB in the beginning and 182.7MB in the end (delta: -74.6MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. * Witness Printer took 87.93ms. Allocated memory is still 262.1MB. Free memory was 182.7MB in the beginning and 178.5MB 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: 921]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 921]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 921]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 921]: 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, 88 locations, 7 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: 5.2s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 799 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 652 mSDsluCounter, 1153 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1004 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1699 IncrementalHoareTripleChecker+Invalid, 1737 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 149 mSDtfsCounter, 1699 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=588occurred in iteration=7, InterpolantAutomatonStates: 103, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 454 NumberOfCodeBlocks, 454 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 441 ConstructedInterpolants, 0 QuantifiedInterpolants, 1017 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-14 17:03:52,956 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