./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/sigma.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/sigma.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 236a73c15e935747b9f2e95e881c26c921eba2f2ad7a2b23cf05552665b9f683 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 16:43:02,864 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 16:43:02,946 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 16:43:02,951 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 16:43:02,952 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 16:43:02,981 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 16:43:02,982 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 16:43:02,982 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 16:43:02,983 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 16:43:02,984 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 16:43:02,985 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 16:43:02,985 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 16:43:02,986 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 16:43:02,986 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 16:43:02,988 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 16:43:02,988 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 16:43:02,988 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 16:43:02,989 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 16:43:02,989 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 16:43:02,989 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 16:43:02,993 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 16:43:02,994 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 16:43:02,995 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 16:43:02,995 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 16:43:02,995 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 16:43:02,995 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 16:43:02,995 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 16:43:02,996 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 16:43:02,996 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 16:43:02,996 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 16:43:02,996 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 16:43:02,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 16:43:02,997 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 16:43:02,997 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 16:43:02,997 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 16:43:02,997 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 16:43:02,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 16:43:02,998 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 16:43:02,999 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 16:43:02,999 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 16:43:02,999 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 16:43:03,000 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 236a73c15e935747b9f2e95e881c26c921eba2f2ad7a2b23cf05552665b9f683 [2024-10-14 16:43:03,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 16:43:03,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 16:43:03,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 16:43:03,258 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 16:43:03,258 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 16:43:03,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/sigma.i [2024-10-14 16:43:04,791 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 16:43:05,077 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 16:43:05,079 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/sigma.i [2024-10-14 16:43:05,103 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26f112ba2/d5027da0a3e84309802b0784cfb97922/FLAG573d84226 [2024-10-14 16:43:05,118 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26f112ba2/d5027da0a3e84309802b0784cfb97922 [2024-10-14 16:43:05,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 16:43:05,122 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 16:43:05,123 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 16:43:05,123 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 16:43:05,129 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 16:43:05,130 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:43:05" (1/1) ... [2024-10-14 16:43:05,131 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59666aad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:05, skipping insertion in model container [2024-10-14 16:43:05,131 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:43:05" (1/1) ... [2024-10-14 16:43:05,190 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 16:43:05,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 16:43:05,668 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 16:43:05,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 16:43:05,787 INFO L204 MainTranslator]: Completed translation [2024-10-14 16:43:05,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:05 WrapperNode [2024-10-14 16:43:05,788 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 16:43:05,789 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 16:43:05,789 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 16:43:05,789 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 16:43:05,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:05" (1/1) ... [2024-10-14 16:43:05,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:05" (1/1) ... [2024-10-14 16:43:05,840 INFO L138 Inliner]: procedures = 320, calls = 25, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 130 [2024-10-14 16:43:05,841 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 16:43:05,841 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 16:43:05,842 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 16:43:05,842 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 16:43:05,852 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:05" (1/1) ... [2024-10-14 16:43:05,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:05" (1/1) ... [2024-10-14 16:43:05,856 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:05" (1/1) ... [2024-10-14 16:43:05,856 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:05" (1/1) ... [2024-10-14 16:43:05,870 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:05" (1/1) ... [2024-10-14 16:43:05,874 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:05" (1/1) ... [2024-10-14 16:43:05,876 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:05" (1/1) ... [2024-10-14 16:43:05,877 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:05" (1/1) ... [2024-10-14 16:43:05,880 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 16:43:05,881 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 16:43:05,882 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 16:43:05,882 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 16:43:05,882 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:05" (1/1) ... [2024-10-14 16:43:05,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 16:43:05,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 16:43:05,914 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 16:43:05,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 16:43:06,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 16:43:06,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 16:43:06,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 16:43:06,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 16:43:06,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 16:43:06,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-10-14 16:43:06,004 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-10-14 16:43:06,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 16:43:06,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 16:43:06,006 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 16:43:06,129 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 16:43:06,130 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 16:43:06,403 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 16:43:06,403 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 16:43:06,425 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 16:43:06,425 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-14 16:43:06,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:43:06 BoogieIcfgContainer [2024-10-14 16:43:06,426 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 16:43:06,428 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 16:43:06,429 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 16:43:06,432 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 16:43:06,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:43:05" (1/3) ... [2024-10-14 16:43:06,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b91b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:43:06, skipping insertion in model container [2024-10-14 16:43:06,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:43:05" (2/3) ... [2024-10-14 16:43:06,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b91b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:43:06, skipping insertion in model container [2024-10-14 16:43:06,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:43:06" (3/3) ... [2024-10-14 16:43:06,435 INFO L112 eAbstractionObserver]: Analyzing ICFG sigma.i [2024-10-14 16:43:06,452 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 16:43:06,452 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2024-10-14 16:43:06,452 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 16:43:06,525 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-14 16:43:06,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 174 transitions, 355 flow [2024-10-14 16:43:06,662 INFO L124 PetriNetUnfolderBase]: 15/258 cut-off events. [2024-10-14 16:43:06,662 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 16:43:06,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 258 events. 15/258 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 582 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 143. Up to 4 conditions per place. [2024-10-14 16:43:06,673 INFO L82 GeneralOperation]: Start removeDead. Operand has 168 places, 174 transitions, 355 flow [2024-10-14 16:43:06,681 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 168 places, 174 transitions, 355 flow [2024-10-14 16:43:06,689 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 16:43:06,695 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;@705b9700, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 16:43:06,696 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-10-14 16:43:06,701 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 16:43:06,701 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-10-14 16:43:06,702 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 16:43:06,702 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:06,703 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] [2024-10-14 16:43:06,703 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 16:43:06,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:06,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1200687547, now seen corresponding path program 1 times [2024-10-14 16:43:06,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:06,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419839341] [2024-10-14 16:43:06,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:06,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:06,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:06,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:06,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419839341] [2024-10-14 16:43:06,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419839341] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:06,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:06,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:43:06,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405633056] [2024-10-14 16:43:06,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:06,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:06,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:07,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:07,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:07,054 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 174 [2024-10-14 16:43:07,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 174 transitions, 355 flow. Second operand has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:07,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:07,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 174 [2024-10-14 16:43:07,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:07,122 INFO L124 PetriNetUnfolderBase]: 3/232 cut-off events. [2024-10-14 16:43:07,123 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-14 16:43:07,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 232 events. 3/232 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 460 event pairs, 0 based on Foata normal form. 6/211 useless extension candidates. Maximal degree in co-relation 140. Up to 22 conditions per place. [2024-10-14 16:43:07,126 INFO L140 encePairwiseOnDemand]: 160/174 looper letters, 13 selfloop transitions, 1 changer transitions 2/159 dead transitions. [2024-10-14 16:43:07,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 159 transitions, 353 flow [2024-10-14 16:43:07,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:07,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:07,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 465 transitions. [2024-10-14 16:43:07,144 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8908045977011494 [2024-10-14 16:43:07,148 INFO L175 Difference]: Start difference. First operand has 168 places, 174 transitions, 355 flow. Second operand 3 states and 465 transitions. [2024-10-14 16:43:07,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 159 transitions, 353 flow [2024-10-14 16:43:07,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 159 transitions, 353 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 16:43:07,159 INFO L231 Difference]: Finished difference. Result has 162 places, 157 transitions, 323 flow [2024-10-14 16:43:07,161 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=323, PETRI_PLACES=162, PETRI_TRANSITIONS=157} [2024-10-14 16:43:07,167 INFO L277 CegarLoopForPetriNet]: 168 programPoint places, -6 predicate places. [2024-10-14 16:43:07,168 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 157 transitions, 323 flow [2024-10-14 16:43:07,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:07,169 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:07,169 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] [2024-10-14 16:43:07,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 16:43:07,169 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 16:43:07,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:07,172 INFO L85 PathProgramCache]: Analyzing trace with hash -369692805, now seen corresponding path program 1 times [2024-10-14 16:43:07,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:07,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335112017] [2024-10-14 16:43:07,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:07,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:07,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:07,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:07,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335112017] [2024-10-14 16:43:07,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335112017] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:07,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:07,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:43:07,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963315024] [2024-10-14 16:43:07,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:07,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:07,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:07,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:07,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:07,320 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 174 [2024-10-14 16:43:07,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 157 transitions, 323 flow. Second operand has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:07,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:07,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 174 [2024-10-14 16:43:07,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:07,413 INFO L124 PetriNetUnfolderBase]: 5/265 cut-off events. [2024-10-14 16:43:07,414 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2024-10-14 16:43:07,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 265 events. 5/265 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 579 event pairs, 2 based on Foata normal form. 0/233 useless extension candidates. Maximal degree in co-relation 261. Up to 16 conditions per place. [2024-10-14 16:43:07,418 INFO L140 encePairwiseOnDemand]: 171/174 looper letters, 9 selfloop transitions, 2 changer transitions 0/156 dead transitions. [2024-10-14 16:43:07,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 156 transitions, 343 flow [2024-10-14 16:43:07,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:07,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:07,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 474 transitions. [2024-10-14 16:43:07,422 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9080459770114943 [2024-10-14 16:43:07,422 INFO L175 Difference]: Start difference. First operand has 162 places, 157 transitions, 323 flow. Second operand 3 states and 474 transitions. [2024-10-14 16:43:07,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 156 transitions, 343 flow [2024-10-14 16:43:07,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 156 transitions, 342 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 16:43:07,427 INFO L231 Difference]: Finished difference. Result has 160 places, 156 transitions, 324 flow [2024-10-14 16:43:07,427 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=160, PETRI_TRANSITIONS=156} [2024-10-14 16:43:07,428 INFO L277 CegarLoopForPetriNet]: 168 programPoint places, -8 predicate places. [2024-10-14 16:43:07,428 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 156 transitions, 324 flow [2024-10-14 16:43:07,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:07,429 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:07,429 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:07,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 16:43:07,429 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 16:43:07,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:07,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1494692810, now seen corresponding path program 1 times [2024-10-14 16:43:07,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:07,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649452550] [2024-10-14 16:43:07,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:07,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:07,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:07,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:07,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:07,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649452550] [2024-10-14 16:43:07,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649452550] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:07,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:07,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:43:07,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678156394] [2024-10-14 16:43:07,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:07,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:07,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:07,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:07,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:07,571 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 174 [2024-10-14 16:43:07,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 156 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:07,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:07,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 174 [2024-10-14 16:43:07,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:07,622 INFO L124 PetriNetUnfolderBase]: 7/261 cut-off events. [2024-10-14 16:43:07,623 INFO L125 PetriNetUnfolderBase]: For 7/9 co-relation queries the response was YES. [2024-10-14 16:43:07,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 261 events. 7/261 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 611 event pairs, 4 based on Foata normal form. 0/235 useless extension candidates. Maximal degree in co-relation 262. Up to 18 conditions per place. [2024-10-14 16:43:07,627 INFO L140 encePairwiseOnDemand]: 170/174 looper letters, 8 selfloop transitions, 1 changer transitions 0/153 dead transitions. [2024-10-14 16:43:07,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 153 transitions, 336 flow [2024-10-14 16:43:07,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:07,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:07,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 474 transitions. [2024-10-14 16:43:07,631 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9080459770114943 [2024-10-14 16:43:07,631 INFO L175 Difference]: Start difference. First operand has 160 places, 156 transitions, 324 flow. Second operand 3 states and 474 transitions. [2024-10-14 16:43:07,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 153 transitions, 336 flow [2024-10-14 16:43:07,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 153 transitions, 332 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 16:43:07,637 INFO L231 Difference]: Finished difference. Result has 157 places, 153 transitions, 316 flow [2024-10-14 16:43:07,637 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=316, PETRI_PLACES=157, PETRI_TRANSITIONS=153} [2024-10-14 16:43:07,638 INFO L277 CegarLoopForPetriNet]: 168 programPoint places, -11 predicate places. [2024-10-14 16:43:07,638 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 153 transitions, 316 flow [2024-10-14 16:43:07,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:07,639 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:07,639 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:07,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 16:43:07,640 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 16:43:07,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:07,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1621985220, now seen corresponding path program 1 times [2024-10-14 16:43:07,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:07,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635185644] [2024-10-14 16:43:07,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:07,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:07,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:07,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:07,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:07,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635185644] [2024-10-14 16:43:07,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635185644] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:07,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:07,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:43:07,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655094883] [2024-10-14 16:43:07,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:07,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:07,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:07,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:07,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:07,765 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 174 [2024-10-14 16:43:07,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 153 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:07,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:07,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 174 [2024-10-14 16:43:07,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:07,822 INFO L124 PetriNetUnfolderBase]: 8/345 cut-off events. [2024-10-14 16:43:07,822 INFO L125 PetriNetUnfolderBase]: For 6/8 co-relation queries the response was YES. [2024-10-14 16:43:07,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 345 events. 8/345 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1024 event pairs, 2 based on Foata normal form. 1/315 useless extension candidates. Maximal degree in co-relation 350. Up to 18 conditions per place. [2024-10-14 16:43:07,824 INFO L140 encePairwiseOnDemand]: 168/174 looper letters, 7 selfloop transitions, 4 changer transitions 0/155 dead transitions. [2024-10-14 16:43:07,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 155 transitions, 342 flow [2024-10-14 16:43:07,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:07,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:07,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 484 transitions. [2024-10-14 16:43:07,826 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9272030651340997 [2024-10-14 16:43:07,826 INFO L175 Difference]: Start difference. First operand has 157 places, 153 transitions, 316 flow. Second operand 3 states and 484 transitions. [2024-10-14 16:43:07,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 155 transitions, 342 flow [2024-10-14 16:43:07,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 155 transitions, 341 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 16:43:07,834 INFO L231 Difference]: Finished difference. Result has 159 places, 155 transitions, 343 flow [2024-10-14 16:43:07,835 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=343, PETRI_PLACES=159, PETRI_TRANSITIONS=155} [2024-10-14 16:43:07,836 INFO L277 CegarLoopForPetriNet]: 168 programPoint places, -9 predicate places. [2024-10-14 16:43:07,836 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 155 transitions, 343 flow [2024-10-14 16:43:07,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:07,837 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:07,837 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:07,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 16:43:07,838 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 16:43:07,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:07,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1088293819, now seen corresponding path program 1 times [2024-10-14 16:43:07,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:07,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878616358] [2024-10-14 16:43:07,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:07,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:07,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:07,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:07,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878616358] [2024-10-14 16:43:07,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878616358] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:07,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:07,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 16:43:07,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396277822] [2024-10-14 16:43:07,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:07,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 16:43:07,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:07,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 16:43:07,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 16:43:07,944 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 174 [2024-10-14 16:43:07,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 155 transitions, 343 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:07,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:07,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 174 [2024-10-14 16:43:07,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:07,999 INFO L124 PetriNetUnfolderBase]: 9/396 cut-off events. [2024-10-14 16:43:07,999 INFO L125 PetriNetUnfolderBase]: For 32/36 co-relation queries the response was YES. [2024-10-14 16:43:08,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 396 events. 9/396 cut-off events. For 32/36 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1382 event pairs, 2 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 449. Up to 29 conditions per place. [2024-10-14 16:43:08,004 INFO L140 encePairwiseOnDemand]: 169/174 looper letters, 12 selfloop transitions, 4 changer transitions 0/158 dead transitions. [2024-10-14 16:43:08,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 158 transitions, 385 flow [2024-10-14 16:43:08,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 16:43:08,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 16:43:08,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2024-10-14 16:43:08,007 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9195402298850575 [2024-10-14 16:43:08,007 INFO L175 Difference]: Start difference. First operand has 159 places, 155 transitions, 343 flow. Second operand 3 states and 480 transitions. [2024-10-14 16:43:08,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 158 transitions, 385 flow [2024-10-14 16:43:08,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 158 transitions, 375 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 16:43:08,011 INFO L231 Difference]: Finished difference. Result has 161 places, 158 transitions, 367 flow [2024-10-14 16:43:08,011 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=367, PETRI_PLACES=161, PETRI_TRANSITIONS=158} [2024-10-14 16:43:08,013 INFO L277 CegarLoopForPetriNet]: 168 programPoint places, -7 predicate places. [2024-10-14 16:43:08,013 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 158 transitions, 367 flow [2024-10-14 16:43:08,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:08,014 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:08,014 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:08,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 16:43:08,015 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 16:43:08,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:08,015 INFO L85 PathProgramCache]: Analyzing trace with hash 823068658, now seen corresponding path program 1 times [2024-10-14 16:43:08,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:08,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117936333] [2024-10-14 16:43:08,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:08,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:08,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:08,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:08,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:08,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117936333] [2024-10-14 16:43:08,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117936333] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:08,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:08,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 16:43:08,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382584495] [2024-10-14 16:43:08,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:08,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 16:43:08,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:08,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 16:43:08,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 16:43:08,294 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 174 [2024-10-14 16:43:08,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 158 transitions, 367 flow. Second operand has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:08,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:08,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 174 [2024-10-14 16:43:08,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:08,337 INFO L124 PetriNetUnfolderBase]: 5/284 cut-off events. [2024-10-14 16:43:08,337 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-10-14 16:43:08,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 284 events. 5/284 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 795 event pairs, 0 based on Foata normal form. 2/270 useless extension candidates. Maximal degree in co-relation 329. Up to 15 conditions per place. [2024-10-14 16:43:08,339 INFO L140 encePairwiseOnDemand]: 167/174 looper letters, 8 selfloop transitions, 5 changer transitions 16/158 dead transitions. [2024-10-14 16:43:08,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 158 transitions, 397 flow [2024-10-14 16:43:08,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 16:43:08,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 16:43:08,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 621 transitions. [2024-10-14 16:43:08,342 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8922413793103449 [2024-10-14 16:43:08,342 INFO L175 Difference]: Start difference. First operand has 161 places, 158 transitions, 367 flow. Second operand 4 states and 621 transitions. [2024-10-14 16:43:08,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 158 transitions, 397 flow [2024-10-14 16:43:08,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 158 transitions, 389 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 16:43:08,347 INFO L231 Difference]: Finished difference. Result has 163 places, 142 transitions, 345 flow [2024-10-14 16:43:08,347 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=345, PETRI_PLACES=163, PETRI_TRANSITIONS=142} [2024-10-14 16:43:08,348 INFO L277 CegarLoopForPetriNet]: 168 programPoint places, -5 predicate places. [2024-10-14 16:43:08,349 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 142 transitions, 345 flow [2024-10-14 16:43:08,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 152.5) internal successors, (610), 4 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:08,350 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:08,350 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:08,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 16:43:08,350 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 16:43:08,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:08,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1860485351, now seen corresponding path program 1 times [2024-10-14 16:43:08,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:08,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476729565] [2024-10-14 16:43:08,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:08,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:08,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:08,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:08,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476729565] [2024-10-14 16:43:08,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476729565] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:08,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:08,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:43:08,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928861931] [2024-10-14 16:43:08,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:08,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:43:08,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:08,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:43:08,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:43:09,131 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 174 [2024-10-14 16:43:09,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 142 transitions, 345 flow. Second operand has 6 states, 6 states have (on average 133.83333333333334) internal successors, (803), 6 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:09,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:09,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 174 [2024-10-14 16:43:09,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:09,338 INFO L124 PetriNetUnfolderBase]: 124/612 cut-off events. [2024-10-14 16:43:09,338 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-10-14 16:43:09,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1008 conditions, 612 events. 124/612 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3068 event pairs, 42 based on Foata normal form. 0/564 useless extension candidates. Maximal degree in co-relation 973. Up to 253 conditions per place. [2024-10-14 16:43:09,342 INFO L140 encePairwiseOnDemand]: 163/174 looper letters, 32 selfloop transitions, 22 changer transitions 0/163 dead transitions. [2024-10-14 16:43:09,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 163 transitions, 495 flow [2024-10-14 16:43:09,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 16:43:09,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 16:43:09,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 847 transitions. [2024-10-14 16:43:09,344 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8113026819923371 [2024-10-14 16:43:09,344 INFO L175 Difference]: Start difference. First operand has 163 places, 142 transitions, 345 flow. Second operand 6 states and 847 transitions. [2024-10-14 16:43:09,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 163 transitions, 495 flow [2024-10-14 16:43:09,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 163 transitions, 485 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-14 16:43:09,349 INFO L231 Difference]: Finished difference. Result has 154 places, 163 transitions, 485 flow [2024-10-14 16:43:09,349 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=485, PETRI_PLACES=154, PETRI_TRANSITIONS=163} [2024-10-14 16:43:09,350 INFO L277 CegarLoopForPetriNet]: 168 programPoint places, -14 predicate places. [2024-10-14 16:43:09,350 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 163 transitions, 485 flow [2024-10-14 16:43:09,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.83333333333334) internal successors, (803), 6 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:09,351 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:09,351 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:09,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 16:43:09,351 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 16:43:09,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:09,352 INFO L85 PathProgramCache]: Analyzing trace with hash -854835544, now seen corresponding path program 1 times [2024-10-14 16:43:09,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:09,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448348934] [2024-10-14 16:43:09,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:09,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:09,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:09,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:09,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448348934] [2024-10-14 16:43:09,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448348934] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 16:43:09,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 16:43:09,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 16:43:09,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083037512] [2024-10-14 16:43:09,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 16:43:09,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 16:43:09,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:09,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 16:43:09,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 16:43:09,998 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 174 [2024-10-14 16:43:10,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 163 transitions, 485 flow. Second operand has 6 states, 6 states have (on average 142.5) internal successors, (855), 6 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:10,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:10,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 174 [2024-10-14 16:43:10,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:10,226 INFO L124 PetriNetUnfolderBase]: 226/882 cut-off events. [2024-10-14 16:43:10,227 INFO L125 PetriNetUnfolderBase]: For 277/324 co-relation queries the response was YES. [2024-10-14 16:43:10,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2050 conditions, 882 events. 226/882 cut-off events. For 277/324 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 5106 event pairs, 27 based on Foata normal form. 0/837 useless extension candidates. Maximal degree in co-relation 2013. Up to 404 conditions per place. [2024-10-14 16:43:10,232 INFO L140 encePairwiseOnDemand]: 158/174 looper letters, 40 selfloop transitions, 52 changer transitions 0/210 dead transitions. [2024-10-14 16:43:10,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 210 transitions, 833 flow [2024-10-14 16:43:10,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 16:43:10,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 16:43:10,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 908 transitions. [2024-10-14 16:43:10,236 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8697318007662835 [2024-10-14 16:43:10,236 INFO L175 Difference]: Start difference. First operand has 154 places, 163 transitions, 485 flow. Second operand 6 states and 908 transitions. [2024-10-14 16:43:10,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 210 transitions, 833 flow [2024-10-14 16:43:10,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 210 transitions, 833 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 16:43:10,247 INFO L231 Difference]: Finished difference. Result has 164 places, 210 transitions, 899 flow [2024-10-14 16:43:10,248 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=899, PETRI_PLACES=164, PETRI_TRANSITIONS=210} [2024-10-14 16:43:10,248 INFO L277 CegarLoopForPetriNet]: 168 programPoint places, -4 predicate places. [2024-10-14 16:43:10,249 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 210 transitions, 899 flow [2024-10-14 16:43:10,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.5) internal successors, (855), 6 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:10,250 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:10,250 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:10,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 16:43:10,250 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 16:43:10,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:10,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1703227862, now seen corresponding path program 1 times [2024-10-14 16:43:10,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:10,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014869141] [2024-10-14 16:43:10,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:10,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:10,419 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:10,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 16:43:10,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014869141] [2024-10-14 16:43:10,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014869141] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 16:43:10,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999567538] [2024-10-14 16:43:10,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:10,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:43:10,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 16:43:10,423 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 16:43:10,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 16:43:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 16:43:10,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 16:43:10,531 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 16:43:10,797 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:10,797 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 16:43:10,934 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 16:43:10,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999567538] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 16:43:10,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 16:43:10,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-10-14 16:43:10,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868916938] [2024-10-14 16:43:10,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 16:43:10,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 16:43:10,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 16:43:10,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 16:43:10,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-10-14 16:43:11,358 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 174 [2024-10-14 16:43:11,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 210 transitions, 899 flow. Second operand has 13 states, 13 states have (on average 148.23076923076923) internal successors, (1927), 13 states have internal predecessors, (1927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:11,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 16:43:11,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 174 [2024-10-14 16:43:11,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 16:43:11,501 INFO L124 PetriNetUnfolderBase]: 163/692 cut-off events. [2024-10-14 16:43:11,502 INFO L125 PetriNetUnfolderBase]: For 532/583 co-relation queries the response was YES. [2024-10-14 16:43:11,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1846 conditions, 692 events. 163/692 cut-off events. For 532/583 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3804 event pairs, 7 based on Foata normal form. 1/688 useless extension candidates. Maximal degree in co-relation 1803. Up to 144 conditions per place. [2024-10-14 16:43:11,506 INFO L140 encePairwiseOnDemand]: 168/174 looper letters, 5 selfloop transitions, 5 changer transitions 0/158 dead transitions. [2024-10-14 16:43:11,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 158 transitions, 734 flow [2024-10-14 16:43:11,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 16:43:11,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 16:43:11,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1033 transitions. [2024-10-14 16:43:11,509 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8481116584564861 [2024-10-14 16:43:11,509 INFO L175 Difference]: Start difference. First operand has 164 places, 210 transitions, 899 flow. Second operand 7 states and 1033 transitions. [2024-10-14 16:43:11,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 158 transitions, 734 flow [2024-10-14 16:43:11,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 158 transitions, 714 flow, removed 9 selfloop flow, removed 1 redundant places. [2024-10-14 16:43:11,520 INFO L231 Difference]: Finished difference. Result has 134 places, 157 transitions, 702 flow [2024-10-14 16:43:11,520 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=702, PETRI_PLACES=134, PETRI_TRANSITIONS=157} [2024-10-14 16:43:11,521 INFO L277 CegarLoopForPetriNet]: 168 programPoint places, -34 predicate places. [2024-10-14 16:43:11,522 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 157 transitions, 702 flow [2024-10-14 16:43:11,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 148.23076923076923) internal successors, (1927), 13 states have internal predecessors, (1927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 16:43:11,523 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 16:43:11,523 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:11,547 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 16:43:11,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 16:43:11,725 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-10-14 16:43:11,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 16:43:11,725 INFO L85 PathProgramCache]: Analyzing trace with hash -377879742, now seen corresponding path program 1 times [2024-10-14 16:43:11,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 16:43:11,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827070270] [2024-10-14 16:43:11,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 16:43:11,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 16:43:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:43:11,759 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 16:43:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 16:43:11,811 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 16:43:11,812 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 16:43:11,814 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr1ASSERT_VIOLATIONDATA_RACE (20 of 21 remaining) [2024-10-14 16:43:11,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2024-10-14 16:43:11,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2024-10-14 16:43:11,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2024-10-14 16:43:11,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2024-10-14 16:43:11,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2024-10-14 16:43:11,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2024-10-14 16:43:11,817 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2024-10-14 16:43:11,818 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2024-10-14 16:43:11,818 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining) [2024-10-14 16:43:11,818 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2024-10-14 16:43:11,818 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2024-10-14 16:43:11,818 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2024-10-14 16:43:11,819 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2024-10-14 16:43:11,819 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2024-10-14 16:43:11,819 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 21 remaining) [2024-10-14 16:43:11,819 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2024-10-14 16:43:11,819 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2024-10-14 16:43:11,819 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2024-10-14 16:43:11,819 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2024-10-14 16:43:11,819 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2024-10-14 16:43:11,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 16:43:11,820 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 16:43:11,873 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 16:43:11,873 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 16:43:11,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:43:11 BasicIcfg [2024-10-14 16:43:11,878 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 16:43:11,878 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 16:43:11,878 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 16:43:11,879 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 16:43:11,879 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:43:06" (3/4) ... [2024-10-14 16:43:11,881 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-14 16:43:11,882 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 16:43:11,882 INFO L158 Benchmark]: Toolchain (without parser) took 6760.59ms. Allocated memory was 165.7MB in the beginning and 283.1MB in the end (delta: 117.4MB). Free memory was 107.4MB in the beginning and 210.9MB in the end (delta: -103.5MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2024-10-14 16:43:11,882 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 165.7MB. Free memory is still 127.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 16:43:11,883 INFO L158 Benchmark]: CACSL2BoogieTranslator took 665.66ms. Allocated memory is still 165.7MB. Free memory was 107.4MB in the beginning and 72.8MB in the end (delta: 34.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-10-14 16:43:11,883 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.85ms. Allocated memory is still 165.7MB. Free memory was 72.8MB in the beginning and 69.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 16:43:11,883 INFO L158 Benchmark]: Boogie Preprocessor took 39.14ms. Allocated memory is still 165.7MB. Free memory was 69.7MB in the beginning and 68.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 16:43:11,883 INFO L158 Benchmark]: RCFGBuilder took 544.77ms. Allocated memory is still 165.7MB. Free memory was 68.0MB in the beginning and 116.9MB in the end (delta: -48.8MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2024-10-14 16:43:11,885 INFO L158 Benchmark]: TraceAbstraction took 5449.92ms. Allocated memory was 165.7MB in the beginning and 283.1MB in the end (delta: 117.4MB). Free memory was 116.0MB in the beginning and 210.9MB in the end (delta: -94.9MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2024-10-14 16:43:11,885 INFO L158 Benchmark]: Witness Printer took 3.37ms. Allocated memory is still 283.1MB. Free memory is still 210.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 16:43:11,886 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 165.7MB. Free memory is still 127.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 665.66ms. Allocated memory is still 165.7MB. Free memory was 107.4MB in the beginning and 72.8MB in the end (delta: 34.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.85ms. Allocated memory is still 165.7MB. Free memory was 72.8MB in the beginning and 69.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.14ms. Allocated memory is still 165.7MB. Free memory was 69.7MB in the beginning and 68.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 544.77ms. Allocated memory is still 165.7MB. Free memory was 68.0MB in the beginning and 116.9MB in the end (delta: -48.8MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5449.92ms. Allocated memory was 165.7MB in the beginning and 283.1MB in the end (delta: 117.4MB). Free memory was 116.0MB in the beginning and 210.9MB in the end (delta: -94.9MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * Witness Printer took 3.37ms. Allocated memory is still 283.1MB. Free memory is still 210.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1117]: Data race detected Data race detected The following path leads to a data race: [L1112] 0 const int SIGMA = 16; VAL [SIGMA=16] [L1113] 0 int *array; VAL [SIGMA=16, array={0:0}] [L1114] 0 int array_index=-1; VAL [SIGMA=16, array={0:0}, array_index=-1] [L1122] 0 int tid, sum; VAL [SIGMA=16, array={0:0}, array_index=-1] [L1123] 0 pthread_t *t; VAL [SIGMA=16, array={0:0}, array_index=-1] [L1124] EXPR 0 sizeof(pthread_t) * SIGMA VAL [SIGMA=16, array={0:0}, array_index=-1] [L1124] 0 t = (pthread_t *)malloc(sizeof(pthread_t) * SIGMA) VAL [SIGMA=16, array={0:0}, array_index=-1, t={10:0}] [L1125] EXPR 0 sizeof(int) * SIGMA VAL [SIGMA=16, array={0:0}, array_index=-1, t={10:0}] [L1125] 0 array = (int *)malloc(sizeof(int) * SIGMA) VAL [SIGMA=16, array={9:0}, array_index=-1, t={10:0}] [L1126] CALL 0 assume_abort_if_not(t) [L11] COND FALSE 0 !(!cond) VAL [SIGMA=16, \old(cond)=10, array={9:0}, array_index=-1, cond=10] [L1126] RET 0 assume_abort_if_not(t) [L1127] 0 assume_abort_if_not(array) [L1127] CALL 0 assume_abort_if_not(array) [L11] COND FALSE 0 !(!cond) VAL [SIGMA=16, \old(cond)=9, array={9:0}, array_index=-1, cond=9] [L1127] RET 0 assume_abort_if_not(array) [L1128] 0 tid=0 VAL [SIGMA=16, array={9:0}, array_index=-1, t={10:0}, tid=0] [L1128] 0 tid