./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 e3884759389c7a3b94642e5e46b4f06a5e829be11d2d026f21d000ba598ae6cd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:06:32,644 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:06:32,717 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:06:32,722 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:06:32,722 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:06:32,745 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:06:32,745 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:06:32,745 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:06:32,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:06:32,748 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:06:32,748 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:06:32,748 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:06:32,749 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:06:32,752 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:06:32,752 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:06:32,752 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:06:32,752 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:06:32,752 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:06:32,752 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:06:32,753 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:06:32,753 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:06:32,754 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:06:32,754 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:06:32,754 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:06:32,754 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:06:32,754 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:06:32,754 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:06:32,755 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:06:32,755 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:06:32,755 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:06:32,755 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:06:32,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:06:32,756 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:06:32,756 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:06:32,756 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:06:32,756 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:06:32,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:06:32,756 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:06:32,756 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:06:32,756 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:06:32,756 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:06:32,757 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3884759389c7a3b94642e5e46b4f06a5e829be11d2d026f21d000ba598ae6cd [2024-10-11 17:06:32,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:06:32,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:06:32,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:06:32,971 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:06:32,971 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:06:32,972 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.i [2024-10-11 17:06:34,132 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:06:34,342 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:06:34,345 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.i [2024-10-11 17:06:34,359 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/a0cb2813a/7a1aaf3f23e5490896218c48930c46bd/FLAG46d9c39e1 [2024-10-11 17:06:34,720 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/a0cb2813a/7a1aaf3f23e5490896218c48930c46bd [2024-10-11 17:06:34,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:06:34,724 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:06:34,725 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:06:34,725 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:06:34,732 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:06:34,733 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:06:34" (1/1) ... [2024-10-11 17:06:34,734 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54fbf808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:34, skipping insertion in model container [2024-10-11 17:06:34,734 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:06:34" (1/1) ... [2024-10-11 17:06:34,767 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:06:35,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:06:35,151 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:06:35,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:06:35,223 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:06:35,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:35 WrapperNode [2024-10-11 17:06:35,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:06:35,225 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:06:35,225 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:06:35,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:06:35,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:35" (1/1) ... [2024-10-11 17:06:35,247 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:35" (1/1) ... [2024-10-11 17:06:35,274 INFO L138 Inliner]: procedures = 264, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 95 [2024-10-11 17:06:35,277 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:06:35,277 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:06:35,277 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:06:35,277 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:06:35,284 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:35" (1/1) ... [2024-10-11 17:06:35,284 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:35" (1/1) ... [2024-10-11 17:06:35,286 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:35" (1/1) ... [2024-10-11 17:06:35,287 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:35" (1/1) ... [2024-10-11 17:06:35,292 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:35" (1/1) ... [2024-10-11 17:06:35,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:35" (1/1) ... [2024-10-11 17:06:35,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:35" (1/1) ... [2024-10-11 17:06:35,296 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:35" (1/1) ... [2024-10-11 17:06:35,298 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:06:35,298 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:06:35,298 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:06:35,298 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:06:35,301 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:35" (1/1) ... [2024-10-11 17:06:35,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:06:35,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:06:35,328 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:06:35,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:06:35,363 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:06:35,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 17:06:35,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 17:06:35,364 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:06:35,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:06:35,364 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 17:06:35,365 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 17:06:35,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:06:35,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:06:35,366 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 17:06:35,482 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:06:35,483 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:06:35,669 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:06:35,669 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:06:35,689 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:06:35,689 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 17:06:35,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:06:35 BoogieIcfgContainer [2024-10-11 17:06:35,690 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:06:35,691 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:06:35,691 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:06:35,694 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:06:35,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:06:34" (1/3) ... [2024-10-11 17:06:35,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4da136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:06:35, skipping insertion in model container [2024-10-11 17:06:35,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:35" (2/3) ... [2024-10-11 17:06:35,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4da136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:06:35, skipping insertion in model container [2024-10-11 17:06:35,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:06:35" (3/3) ... [2024-10-11 17:06:35,695 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_09-tricky_address4.i [2024-10-11 17:06:35,707 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:06:35,707 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-11 17:06:35,707 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:06:35,769 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 17:06:35,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 105 transitions, 214 flow [2024-10-11 17:06:35,832 INFO L124 PetriNetUnfolderBase]: 4/104 cut-off events. [2024-10-11 17:06:35,832 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:06:35,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 104 events. 4/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2024-10-11 17:06:35,837 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 105 transitions, 214 flow [2024-10-11 17:06:35,840 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 104 transitions, 211 flow [2024-10-11 17:06:35,846 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:06:35,851 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;@53829091, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:06:35,851 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-11 17:06:35,864 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:06:35,864 INFO L124 PetriNetUnfolderBase]: 4/54 cut-off events. [2024-10-11 17:06:35,864 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:06:35,864 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:35,865 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] [2024-10-11 17:06:35,865 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-11 17:06:35,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:35,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1908236508, now seen corresponding path program 1 times [2024-10-11 17:06:35,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:35,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908553481] [2024-10-11 17:06:35,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:35,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:36,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:36,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:36,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908553481] [2024-10-11 17:06:36,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908553481] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:36,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:06:36,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:06:36,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58307635] [2024-10-11 17:06:36,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:36,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:06:36,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:36,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:06:36,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:06:36,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 105 [2024-10-11 17:06:36,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 104 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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) [2024-10-11 17:06:36,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:36,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 105 [2024-10-11 17:06:36,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:36,229 INFO L124 PetriNetUnfolderBase]: 7/165 cut-off events. [2024-10-11 17:06:36,230 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:06:36,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 165 events. 7/165 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 328 event pairs, 6 based on Foata normal form. 5/158 useless extension candidates. Maximal degree in co-relation 147. Up to 24 conditions per place. [2024-10-11 17:06:36,232 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 10 selfloop transitions, 2 changer transitions 1/102 dead transitions. [2024-10-11 17:06:36,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 102 transitions, 231 flow [2024-10-11 17:06:36,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:06:36,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:06:36,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2024-10-11 17:06:36,243 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9206349206349206 [2024-10-11 17:06:36,244 INFO L175 Difference]: Start difference. First operand has 104 places, 104 transitions, 211 flow. Second operand 3 states and 290 transitions. [2024-10-11 17:06:36,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 102 transitions, 231 flow [2024-10-11 17:06:36,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 102 transitions, 230 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:06:36,253 INFO L231 Difference]: Finished difference. Result has 106 places, 101 transitions, 214 flow [2024-10-11 17:06:36,254 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=106, PETRI_TRANSITIONS=101} [2024-10-11 17:06:36,257 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 2 predicate places. [2024-10-11 17:06:36,259 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 101 transitions, 214 flow [2024-10-11 17:06:36,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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) [2024-10-11 17:06:36,273 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:36,274 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] [2024-10-11 17:06:36,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:06:36,274 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-11 17:06:36,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:36,275 INFO L85 PathProgramCache]: Analyzing trace with hash -833281672, now seen corresponding path program 1 times [2024-10-11 17:06:36,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:36,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275790504] [2024-10-11 17:06:36,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:36,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:36,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:36,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:36,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275790504] [2024-10-11 17:06:36,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275790504] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:06:36,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599987590] [2024-10-11 17:06:36,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:36,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:06:36,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:06:36,429 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:06:36,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 17:06:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:36,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 17:06:36,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:06:36,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:36,540 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:06:36,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:36,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599987590] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:06:36,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:06:36,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 17:06:36,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107660135] [2024-10-11 17:06:36,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:06:36,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 17:06:36,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:36,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 17:06:36,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 17:06:36,611 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 105 [2024-10-11 17:06:36,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 101 transitions, 214 flow. Second operand has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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) [2024-10-11 17:06:36,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:36,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 105 [2024-10-11 17:06:36,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:36,743 INFO L124 PetriNetUnfolderBase]: 7/171 cut-off events. [2024-10-11 17:06:36,743 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:06:36,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 171 events. 7/171 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 324 event pairs, 6 based on Foata normal form. 2/162 useless extension candidates. Maximal degree in co-relation 194. Up to 24 conditions per place. [2024-10-11 17:06:36,744 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 14 selfloop transitions, 9 changer transitions 0/109 dead transitions. [2024-10-11 17:06:36,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 109 transitions, 278 flow [2024-10-11 17:06:36,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 17:06:36,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 17:06:36,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 817 transitions. [2024-10-11 17:06:36,748 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8645502645502645 [2024-10-11 17:06:36,748 INFO L175 Difference]: Start difference. First operand has 106 places, 101 transitions, 214 flow. Second operand 9 states and 817 transitions. [2024-10-11 17:06:36,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 109 transitions, 278 flow [2024-10-11 17:06:36,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 109 transitions, 276 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:06:36,751 INFO L231 Difference]: Finished difference. Result has 115 places, 107 transitions, 262 flow [2024-10-11 17:06:36,751 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=262, PETRI_PLACES=115, PETRI_TRANSITIONS=107} [2024-10-11 17:06:36,751 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 11 predicate places. [2024-10-11 17:06:36,752 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 107 transitions, 262 flow [2024-10-11 17:06:36,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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) [2024-10-11 17:06:36,752 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:36,753 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:06:36,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 17:06:36,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:06:36,960 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-11 17:06:36,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:36,960 INFO L85 PathProgramCache]: Analyzing trace with hash -29516552, now seen corresponding path program 2 times [2024-10-11 17:06:36,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:36,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051245604] [2024-10-11 17:06:36,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:36,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:37,119 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:37,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:37,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051245604] [2024-10-11 17:06:37,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051245604] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:06:37,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108281180] [2024-10-11 17:06:37,121 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:06:37,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:06:37,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:06:37,125 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:06:37,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 17:06:37,188 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:06:37,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:06:37,189 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 17:06:37,193 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:06:37,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-11 17:06:37,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-11 17:06:37,271 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:06:37,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-11 17:06:37,308 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:06:37,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-11 17:06:37,340 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 17:06:37,340 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:06:37,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108281180] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:37,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:06:37,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-10-11 17:06:37,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721718112] [2024-10-11 17:06:37,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:37,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:06:37,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:37,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:06:37,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-11 17:06:37,473 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 105 [2024-10-11 17:06:37,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 107 transitions, 262 flow. Second operand has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 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) [2024-10-11 17:06:37,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:37,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 105 [2024-10-11 17:06:37,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:37,643 INFO L124 PetriNetUnfolderBase]: 129/640 cut-off events. [2024-10-11 17:06:37,643 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-11 17:06:37,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 970 conditions, 640 events. 129/640 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3611 event pairs, 47 based on Foata normal form. 0/578 useless extension candidates. Maximal degree in co-relation 916. Up to 178 conditions per place. [2024-10-11 17:06:37,650 INFO L140 encePairwiseOnDemand]: 94/105 looper letters, 43 selfloop transitions, 22 changer transitions 0/148 dead transitions. [2024-10-11 17:06:37,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 148 transitions, 474 flow [2024-10-11 17:06:37,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:06:37,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:06:37,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 534 transitions. [2024-10-11 17:06:37,654 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8476190476190476 [2024-10-11 17:06:37,654 INFO L175 Difference]: Start difference. First operand has 115 places, 107 transitions, 262 flow. Second operand 6 states and 534 transitions. [2024-10-11 17:06:37,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 148 transitions, 474 flow [2024-10-11 17:06:37,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 148 transitions, 468 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-11 17:06:37,658 INFO L231 Difference]: Finished difference. Result has 123 places, 129 transitions, 402 flow [2024-10-11 17:06:37,659 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=402, PETRI_PLACES=123, PETRI_TRANSITIONS=129} [2024-10-11 17:06:37,660 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 19 predicate places. [2024-10-11 17:06:37,660 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 129 transitions, 402 flow [2024-10-11 17:06:37,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 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) [2024-10-11 17:06:37,661 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:37,661 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:06:37,674 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 17:06:37,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:06:37,863 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-11 17:06:37,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:37,863 INFO L85 PathProgramCache]: Analyzing trace with hash -99094314, now seen corresponding path program 1 times [2024-10-11 17:06:37,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:37,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744565946] [2024-10-11 17:06:37,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:37,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:37,996 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:37,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:37,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744565946] [2024-10-11 17:06:37,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744565946] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:06:37,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828549775] [2024-10-11 17:06:37,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:37,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:06:37,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:06:37,999 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:06:38,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 17:06:38,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:38,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 17:06:38,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:06:38,108 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:38,108 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:06:38,172 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:38,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828549775] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:06:38,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:06:38,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-11 17:06:38,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037197322] [2024-10-11 17:06:38,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:06:38,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 17:06:38,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:38,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 17:06:38,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-11 17:06:38,197 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 105 [2024-10-11 17:06:38,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 129 transitions, 402 flow. Second operand has 18 states, 18 states have (on average 90.0) internal successors, (1620), 18 states have internal predecessors, (1620), 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) [2024-10-11 17:06:38,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:38,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 105 [2024-10-11 17:06:38,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:38,385 INFO L124 PetriNetUnfolderBase]: 41/447 cut-off events. [2024-10-11 17:06:38,385 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-10-11 17:06:38,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 447 events. 41/447 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2188 event pairs, 16 based on Foata normal form. 4/424 useless extension candidates. Maximal degree in co-relation 629. Up to 55 conditions per place. [2024-10-11 17:06:38,387 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 18 selfloop transitions, 21 changer transitions 0/147 dead transitions. [2024-10-11 17:06:38,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 147 transitions, 568 flow [2024-10-11 17:06:38,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 17:06:38,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-11 17:06:38,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1891 transitions. [2024-10-11 17:06:38,393 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8575963718820862 [2024-10-11 17:06:38,393 INFO L175 Difference]: Start difference. First operand has 123 places, 129 transitions, 402 flow. Second operand 21 states and 1891 transitions. [2024-10-11 17:06:38,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 147 transitions, 568 flow [2024-10-11 17:06:38,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 147 transitions, 568 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:06:38,400 INFO L231 Difference]: Finished difference. Result has 148 places, 142 transitions, 532 flow [2024-10-11 17:06:38,401 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=532, PETRI_PLACES=148, PETRI_TRANSITIONS=142} [2024-10-11 17:06:38,402 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 44 predicate places. [2024-10-11 17:06:38,402 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 142 transitions, 532 flow [2024-10-11 17:06:38,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 90.0) internal successors, (1620), 18 states have internal predecessors, (1620), 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) [2024-10-11 17:06:38,403 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:38,403 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:06:38,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 17:06:38,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:06:38,604 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-11 17:06:38,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:38,605 INFO L85 PathProgramCache]: Analyzing trace with hash -2134063146, now seen corresponding path program 2 times [2024-10-11 17:06:38,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:38,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451934965] [2024-10-11 17:06:38,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:38,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:38,830 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:38,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:38,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451934965] [2024-10-11 17:06:38,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451934965] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:06:38,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221148903] [2024-10-11 17:06:38,831 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:06:38,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:06:38,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:06:38,833 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:06:38,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 17:06:38,908 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:06:38,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:06:38,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 17:06:38,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:06:38,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-11 17:06:38,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-11 17:06:38,974 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:06:38,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-11 17:06:39,008 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:06:39,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-11 17:06:39,042 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-11 17:06:39,042 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:06:39,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221148903] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:39,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:06:39,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-11 17:06:39,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728566876] [2024-10-11 17:06:39,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:39,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:06:39,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:39,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:06:39,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-11 17:06:39,152 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 105 [2024-10-11 17:06:39,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 142 transitions, 532 flow. Second operand has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 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) [2024-10-11 17:06:39,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:39,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 105 [2024-10-11 17:06:39,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:39,354 INFO L124 PetriNetUnfolderBase]: 306/1279 cut-off events. [2024-10-11 17:06:39,354 INFO L125 PetriNetUnfolderBase]: For 286/296 co-relation queries the response was YES. [2024-10-11 17:06:39,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2446 conditions, 1279 events. 306/1279 cut-off events. For 286/296 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 9039 event pairs, 116 based on Foata normal form. 5/1171 useless extension candidates. Maximal degree in co-relation 2308. Up to 464 conditions per place. [2024-10-11 17:06:39,361 INFO L140 encePairwiseOnDemand]: 90/105 looper letters, 72 selfloop transitions, 36 changer transitions 2/199 dead transitions. [2024-10-11 17:06:39,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 199 transitions, 904 flow [2024-10-11 17:06:39,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:06:39,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:06:39,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 520 transitions. [2024-10-11 17:06:39,362 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8253968253968254 [2024-10-11 17:06:39,362 INFO L175 Difference]: Start difference. First operand has 148 places, 142 transitions, 532 flow. Second operand 6 states and 520 transitions. [2024-10-11 17:06:39,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 199 transitions, 904 flow [2024-10-11 17:06:39,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 199 transitions, 880 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-11 17:06:39,370 INFO L231 Difference]: Finished difference. Result has 151 places, 174 transitions, 760 flow [2024-10-11 17:06:39,370 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=760, PETRI_PLACES=151, PETRI_TRANSITIONS=174} [2024-10-11 17:06:39,371 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 47 predicate places. [2024-10-11 17:06:39,371 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 174 transitions, 760 flow [2024-10-11 17:06:39,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 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) [2024-10-11 17:06:39,371 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:39,371 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:06:39,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 17:06:39,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:06:39,572 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-11 17:06:39,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:39,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1839739826, now seen corresponding path program 1 times [2024-10-11 17:06:39,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:39,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673657916] [2024-10-11 17:06:39,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:39,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:39,803 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:39,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:39,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673657916] [2024-10-11 17:06:39,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673657916] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:06:39,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678348629] [2024-10-11 17:06:39,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:39,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:06:39,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:06:39,806 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:06:39,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 17:06:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:39,871 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 17:06:39,873 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:06:39,948 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:39,948 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:06:40,123 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:40,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678348629] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:06:40,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:06:40,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-11 17:06:40,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625609336] [2024-10-11 17:06:40,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:06:40,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 17:06:40,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:40,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 17:06:40,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-11 17:06:40,151 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 105 [2024-10-11 17:06:40,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 174 transitions, 760 flow. Second operand has 23 states, 23 states have (on average 90.08695652173913) internal successors, (2072), 23 states have internal predecessors, (2072), 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) [2024-10-11 17:06:40,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:40,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 105 [2024-10-11 17:06:40,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:40,457 INFO L124 PetriNetUnfolderBase]: 120/885 cut-off events. [2024-10-11 17:06:40,458 INFO L125 PetriNetUnfolderBase]: For 415/415 co-relation queries the response was YES. [2024-10-11 17:06:40,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1785 conditions, 885 events. 120/885 cut-off events. For 415/415 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 5997 event pairs, 33 based on Foata normal form. 3/829 useless extension candidates. Maximal degree in co-relation 1568. Up to 134 conditions per place. [2024-10-11 17:06:40,461 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 21 selfloop transitions, 30 changer transitions 0/191 dead transitions. [2024-10-11 17:06:40,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 191 transitions, 984 flow [2024-10-11 17:06:40,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-11 17:06:40,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-11 17:06:40,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2694 transitions. [2024-10-11 17:06:40,466 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8552380952380952 [2024-10-11 17:06:40,466 INFO L175 Difference]: Start difference. First operand has 151 places, 174 transitions, 760 flow. Second operand 30 states and 2694 transitions. [2024-10-11 17:06:40,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 191 transitions, 984 flow [2024-10-11 17:06:40,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 191 transitions, 960 flow, removed 12 selfloop flow, removed 0 redundant places. [2024-10-11 17:06:40,473 INFO L231 Difference]: Finished difference. Result has 183 places, 184 transitions, 888 flow [2024-10-11 17:06:40,473 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=888, PETRI_PLACES=183, PETRI_TRANSITIONS=184} [2024-10-11 17:06:40,474 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 79 predicate places. [2024-10-11 17:06:40,474 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 184 transitions, 888 flow [2024-10-11 17:06:40,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 90.08695652173913) internal successors, (2072), 23 states have internal predecessors, (2072), 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) [2024-10-11 17:06:40,475 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:40,475 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:06:40,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 17:06:40,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:06:40,676 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-11 17:06:40,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:40,676 INFO L85 PathProgramCache]: Analyzing trace with hash 24662562, now seen corresponding path program 2 times [2024-10-11 17:06:40,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:40,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788064009] [2024-10-11 17:06:40,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:40,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:41,093 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:06:41,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:41,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788064009] [2024-10-11 17:06:41,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788064009] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:41,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:06:41,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:06:41,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668693162] [2024-10-11 17:06:41,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:41,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:06:41,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:41,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:06:41,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:06:41,236 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 105 [2024-10-11 17:06:41,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 184 transitions, 888 flow. Second operand has 6 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 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) [2024-10-11 17:06:41,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:41,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 105 [2024-10-11 17:06:41,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:41,420 INFO L124 PetriNetUnfolderBase]: 306/1402 cut-off events. [2024-10-11 17:06:41,420 INFO L125 PetriNetUnfolderBase]: For 902/942 co-relation queries the response was YES. [2024-10-11 17:06:41,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3269 conditions, 1402 events. 306/1402 cut-off events. For 902/942 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 10360 event pairs, 72 based on Foata normal form. 10/1366 useless extension candidates. Maximal degree in co-relation 3050. Up to 456 conditions per place. [2024-10-11 17:06:41,426 INFO L140 encePairwiseOnDemand]: 94/105 looper letters, 80 selfloop transitions, 49 changer transitions 0/250 dead transitions. [2024-10-11 17:06:41,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 250 transitions, 1445 flow [2024-10-11 17:06:41,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:06:41,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:06:41,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 539 transitions. [2024-10-11 17:06:41,428 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8555555555555555 [2024-10-11 17:06:41,428 INFO L175 Difference]: Start difference. First operand has 183 places, 184 transitions, 888 flow. Second operand 6 states and 539 transitions. [2024-10-11 17:06:41,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 250 transitions, 1445 flow [2024-10-11 17:06:41,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 250 transitions, 1399 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-10-11 17:06:41,436 INFO L231 Difference]: Finished difference. Result has 174 places, 225 transitions, 1258 flow [2024-10-11 17:06:41,436 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=842, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1258, PETRI_PLACES=174, PETRI_TRANSITIONS=225} [2024-10-11 17:06:41,436 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 70 predicate places. [2024-10-11 17:06:41,437 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 225 transitions, 1258 flow [2024-10-11 17:06:41,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 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) [2024-10-11 17:06:41,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:41,437 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:06:41,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:06:41,437 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-11 17:06:41,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:41,438 INFO L85 PathProgramCache]: Analyzing trace with hash 180006311, now seen corresponding path program 1 times [2024-10-11 17:06:41,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:41,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440774168] [2024-10-11 17:06:41,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:41,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:41,726 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:06:41,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:41,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440774168] [2024-10-11 17:06:41,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440774168] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:41,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:06:41,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:06:41,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300219239] [2024-10-11 17:06:41,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:41,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:06:41,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:41,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:06:41,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:06:41,843 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 105 [2024-10-11 17:06:41,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 225 transitions, 1258 flow. Second operand has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 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) [2024-10-11 17:06:41,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:41,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 105 [2024-10-11 17:06:41,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:42,125 INFO L124 PetriNetUnfolderBase]: 579/2174 cut-off events. [2024-10-11 17:06:42,126 INFO L125 PetriNetUnfolderBase]: For 2546/2609 co-relation queries the response was YES. [2024-10-11 17:06:42,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5849 conditions, 2174 events. 579/2174 cut-off events. For 2546/2609 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 17394 event pairs, 140 based on Foata normal form. 12/2102 useless extension candidates. Maximal degree in co-relation 5647. Up to 824 conditions per place. [2024-10-11 17:06:42,137 INFO L140 encePairwiseOnDemand]: 90/105 looper letters, 119 selfloop transitions, 78 changer transitions 11/319 dead transitions. [2024-10-11 17:06:42,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 319 transitions, 2198 flow [2024-10-11 17:06:42,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:06:42,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:06:42,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 525 transitions. [2024-10-11 17:06:42,139 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2024-10-11 17:06:42,139 INFO L175 Difference]: Start difference. First operand has 174 places, 225 transitions, 1258 flow. Second operand 6 states and 525 transitions. [2024-10-11 17:06:42,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 319 transitions, 2198 flow [2024-10-11 17:06:42,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 319 transitions, 2196 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-10-11 17:06:42,151 INFO L231 Difference]: Finished difference. Result has 183 places, 273 transitions, 1862 flow [2024-10-11 17:06:42,152 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=1256, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1862, PETRI_PLACES=183, PETRI_TRANSITIONS=273} [2024-10-11 17:06:42,154 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 79 predicate places. [2024-10-11 17:06:42,154 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 273 transitions, 1862 flow [2024-10-11 17:06:42,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 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) [2024-10-11 17:06:42,154 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:42,154 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:06:42,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 17:06:42,155 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-11 17:06:42,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:42,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1795200447, now seen corresponding path program 1 times [2024-10-11 17:06:42,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:42,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882843168] [2024-10-11 17:06:42,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:42,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:06:42,185 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 17:06:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:06:42,216 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 17:06:42,216 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 17:06:42,217 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-10-11 17:06:42,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-10-11 17:06:42,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-10-11 17:06:42,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-10-11 17:06:42,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-10-11 17:06:42,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-10-11 17:06:42,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-10-11 17:06:42,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 17:06:42,219 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1] [2024-10-11 17:06:42,253 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 17:06:42,253 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 17:06:42,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 05:06:42 BasicIcfg [2024-10-11 17:06:42,256 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 17:06:42,256 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 17:06:42,256 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 17:06:42,256 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 17:06:42,256 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:06:35" (3/4) ... [2024-10-11 17:06:42,257 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 17:06:42,258 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 17:06:42,260 INFO L158 Benchmark]: Toolchain (without parser) took 7535.01ms. Allocated memory was 188.7MB in the beginning and 281.0MB in the end (delta: 92.3MB). Free memory was 129.5MB in the beginning and 138.3MB in the end (delta: -8.8MB). Peak memory consumption was 84.5MB. Max. memory is 16.1GB. [2024-10-11 17:06:42,260 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 98.6MB. Free memory is still 53.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:06:42,260 INFO L158 Benchmark]: CACSL2BoogieTranslator took 499.51ms. Allocated memory is still 188.7MB. Free memory was 129.5MB in the beginning and 137.3MB in the end (delta: -7.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-11 17:06:42,260 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.67ms. Allocated memory is still 188.7MB. Free memory was 137.3MB in the beginning and 135.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:06:42,260 INFO L158 Benchmark]: Boogie Preprocessor took 20.53ms. Allocated memory is still 188.7MB. Free memory was 135.2MB in the beginning and 133.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:06:42,261 INFO L158 Benchmark]: RCFGBuilder took 391.46ms. Allocated memory is still 188.7MB. Free memory was 133.1MB in the beginning and 114.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-11 17:06:42,261 INFO L158 Benchmark]: TraceAbstraction took 6564.69ms. Allocated memory was 188.7MB in the beginning and 281.0MB in the end (delta: 92.3MB). Free memory was 113.1MB in the beginning and 138.3MB in the end (delta: -25.1MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. [2024-10-11 17:06:42,261 INFO L158 Benchmark]: Witness Printer took 2.21ms. Allocated memory is still 281.0MB. Free memory is still 138.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:06:42,262 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 98.6MB. Free memory is still 53.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 499.51ms. Allocated memory is still 188.7MB. Free memory was 129.5MB in the beginning and 137.3MB in the end (delta: -7.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.67ms. Allocated memory is still 188.7MB. Free memory was 137.3MB in the beginning and 135.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.53ms. Allocated memory is still 188.7MB. Free memory was 135.2MB in the beginning and 133.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 391.46ms. Allocated memory is still 188.7MB. Free memory was 133.1MB in the beginning and 114.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6564.69ms. Allocated memory was 188.7MB in the beginning and 281.0MB in the end (delta: 92.3MB). Free memory was 113.1MB in the beginning and 138.3MB in the end (delta: -25.1MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. * Witness Printer took 2.21ms. Allocated memory is still 281.0MB. Free memory is still 138.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 944]: Data race detected Data race detected The following path leads to a data race: [L922-L925] 0 struct s { int datum; pthread_mutex_t mutex; } a[10]; VAL [a={1:0}] [L937] 0 int i = 0; VAL [a={1:0}, i=0] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=0] [L937] 0 i++ VAL [a={1:0}, i=1] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=1] [L937] 0 i++ VAL [a={1:0}, i=2] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=2] [L937] 0 i++ VAL [a={1:0}, i=3] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=3] [L937] 0 i++ VAL [a={1:0}, i=4] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=4] [L937] 0 i++ VAL [a={1:0}, i=5] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=5] [L937] 0 i++ VAL [a={1:0}, i=6] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=6] [L937] 0 i++ VAL [a={1:0}, i=7] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=7] [L937] 0 i++ VAL [a={1:0}, i=8] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=8] [L937] 0 i++ VAL [a={1:0}, i=9] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=9] [L937] 0 i++ VAL [a={1:0}, i=10] [L937] COND FALSE 0 !(i < 10) VAL [a={1:0}, i=10] [L939] 0 int i = __VERIFIER_nondet_int(); VAL [a={1:0}, i=1] [L940] CALL 0 assume_abort_if_not(0 <= i && i < 10) [L11] COND FALSE 0 !(!cond) VAL [\old(cond)=1, a={1:0}, cond=1] [L940] RET 0 assume_abort_if_not(0 <= i && i < 10) [L941] 0 pthread_t t1; VAL [a={1:0}, i=1] [L942] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [a={1:0}, i=1, t1=-1] [L927] 1 int i = __VERIFIER_nondet_int(); VAL [\old(arg)={0:0}, a={1:0}, arg={0:0}, i=0] [L928] CALL 1 assume_abort_if_not(0 <= i && i < 9) [L11] COND FALSE 1 !(!cond) VAL [\old(cond)=1, a={1:0}, cond=1] [L928] RET 1 assume_abort_if_not(0 <= i && i < 9) [L929] 1 struct s *p = &a[i]; VAL [\old(arg)={0:0}, a={1:0}, arg={0:0}, i=0, p={1:0}] [L931] 1 i++ VAL [\old(arg)={0:0}, a={1:0}, arg={0:0}, i=1, p={1:0}] [L944] EXPR 0 a[i].datum VAL [a={1:0}, i=1, t1=-1] [L944] 0 a[i].datum++ VAL [a={1:0}, i=1, t1=-1] [L932] EXPR 1 a[i].datum VAL [\old(arg)={0:0}, a={1:0}, arg={0:0}, i=1, p={1:0}] [L932] 1 a[i].datum++ VAL [\old(arg)={0:0}, a={1:0}, arg={0:0}, i=1, p={1:0}] [L944] 0 a[i].datum++ VAL [a={1:0}, i=1, t1=-1] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: a[i].datum++ [944] * C: a[i].datum++ [944] * C: a[i].datum++ [944] * C: a[i].datum++ [944] * C: a[i].datum++ [932] and C: a[i].datum++ [944] - UnprovableResult [Line: 944]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 942]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 145 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.4s, OverallIterations: 9, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 509 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 377 mSDsluCounter, 108 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 89 mSDsCounter, 128 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1325 IncrementalHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 128 mSolverCounterUnsat, 19 mSDtfsCounter, 1325 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 588 GetRequests, 459 SyntacticMatches, 11 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1862occurred in iteration=8, InterpolantAutomatonStates: 87, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 969 NumberOfCodeBlocks, 919 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1022 ConstructedInterpolants, 0 QuantifiedInterpolants, 1936 SizeOfPredicates, 22 NumberOfNonLiveVariables, 597 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 600/1123 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-10-11 17:06:42,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE